JP6408384B2 - Root crop harvesting machine - Google Patents

Description

  The present invention relates to a root vegetable harvesting machine for harvesting root vegetables such as carrots and radishes.

  In conventional root vegetable harvesting machines, a belt-conveying drawing device that pulls out root vegetables from the field and transports them to the rear side of the machine as the machine runs, and a leaf portion of the root vegetables that is conveyed rearward by the drawing device is separated. And a leaf cutting device. The leaf cutting device includes an endless rotating chain for aligning the position of the upper end of the root vegetable with respect to the root vegetable conveyed by the pulling device, and a conveyor belt that conveys the root vegetable leaf to the rear while sandwiching the aligned root vegetable leaf portion. And a rotary cutter that cuts the vicinity of the boundary with the root vegetables in the leaf portion while being conveyed. A transmission mechanism for branching and transmitting the power from the engine to each device of the leaf cutting device is provided in the transmission case, and the transmission case is provided in a state of being located below the leaf cutting device. (For example, refer to Patent Document 1).

JP 2001-275426 A

  In the root vegetable harvesting machine, the root vegetables transported by the transport belt are transported with the leaf portion sandwiched by the transport belt, and the vicinity of the boundary between the leaf portion and the root vegetable is cut by the rotary cutter. It is transported in a state where root vegetables are located below the apparatus. And since a transmission case is prepared in the state located in the downward side of a leaf cutting device, a transmission case will be located in the side of the root vegetable conveyed.

  However, since the root vegetables are pulled out from the soil, the soil is attached to the harvested root vegetables, and the root vegetables transported may swing from side to side in accordance with the vibration of the machine accompanying the harvesting operation. As a result, soil may adhere to the surface of the transmission case, and if such soil adheres and accumulates and the amount increases, the transport of root vegetables may be hindered and root vegetables may not be harvested well. .

  Therefore, it has been desired to prevent the soil from adhering to the transmission case so that the harvesting operation can be performed satisfactorily.

The characteristic configuration of the root vegetable harvesting machine according to the present invention includes a pulling device that pulls out a root vegetable from the field and transports it to the rear side of the machine as the machine runs, and a plurality of rotating bodies that are transported rearward by the pulling device. A leaf cutting device that separates the leaf portion of the root vegetables and a transmission mechanism that branches and transmits the power transmitted from the engine to a plurality of rotating bodies of the leaf cutting device and is disposed above the leaf cutting device The leaf cutting device includes, as a plurality of rotating bodies, an endless rotating body for positioning the root vegetables in the vertical direction and an endless separation for conveying the root vegetables rearward. A rotating body, and a cutting device that cuts and separates the root vegetables and leaf parts from the root vegetables conveyed by the endless rotating body for separation, the endless rotating body for positioning, and the endless rotation for separation Moving body and front Each of the cutting devices is provided on the lower side of the leaf cutting transmission case, and the leaf cutting transmission case is provided separately on each of the left and right sides of the root vegetable conveyance path, and the separation is performed in the leaf cutting device. A pair of left and right side cover bodies covering both the left and right sides of the region through which the root part of the root vegetable conveyed by the endless rotating body for use is supported by the leaf cutting transmission cases on the left and right sides, respectively, Each of the side cover bodies has a part extending in the vertical direction and a part extending outward from the upper end of the part extending in the vertical direction in front view, and the pair of left and right side cover bodies The parts extending in the vertical direction are respectively located between the left and right leaf cutting transmission cases in a front view .

  According to the present invention, the leaf cutting device includes a plurality of rotating bodies, and the power transmitted from the engine by the transmission mechanism is branched and transmitted to the plurality of rotating bodies and conveyed to the rear side by the drawing device. Separate root leaf. And the transmission case for leaf cutting which incorporates a transmission mechanism is deployed in the state located in the upper side rather than a leaf cutting device.

  By comprising in this way, even if the root vegetable conveyed by the leaf cutting device is conveyed in a state positioned below the leaf cutting device, the soil adhering to the root vegetable adheres to the leaf cutting transmission case. There is little possibility of accumulation. As a result, the movement route of root vegetables is blocked, or the route is narrowed, so that there is less possibility that the conveyance of root vegetables and the accompanying cutting processing of the leaf portion will be hindered.

  Therefore, it has become possible to prevent the soil from adhering to the leaf cutting transmission case and to perform the harvesting work satisfactorily.

Moreover, according to this structure, in the leaf cutting device, the root vegetables conveyed to the rear side by the drawing device are positioned in the vertical direction by the endless rotating body for positioning. While the positioned root vegetables are conveyed backward by an endless rotating body for separation, the root vegetables and leaf portions are cut and separated by a cutting device. Thus, a leaf part can be cut | disconnected favorably in the state hold | maintained firmly by conveying by the endless rotation body for isolation | separation. The separated root vegetables are collected separately, and the leaves are discharged outward.

  And since each of the endless rotating body for positioning, the endless rotating body for separation, and the cutting device is provided below the transmission case for leaf cutting, the root vegetables positioned below the cutting position are There is no possibility of soil adhering to the leaf cutting transmission case without touching the cutting transmission case.

In addition, according to the present configuration, when performing a transport process for transporting root vegetables, a cutting process for cutting leaves, etc., the leaf cutting transmission case is provided on each of the left and right sides of the root vegetable transport path. By providing the rotating bodies on both the left and right sides, it is possible to perform these processes satisfactorily. And by effectively utilizing the leaf cutting transmission cases provided on the left and right sides in this way, the pair of left and right side cover bodies are supported without complicating the configuration such as separately providing a dedicated support member. can do.

  In the present invention, a plurality of transmission shafts are provided in a state of projecting downward from the leaf cutting transmission case, and each of the positioning endless rotating body, the separating endless rotating body, and the cutting device includes: It is preferable that it is supported by the transmission shaft.

  According to this configuration, the endless rotating body for positioning, the endless rotating body for separation, and the cutting device can be favorably supported by the transmission shaft that protrudes downward from the transmission case for leaf cutting. That is, the leaf cutting device can be supported by the leaf cutting transmission case located on the upper side, and it is not necessary to provide another support member, so that the leaf cutting process is performed well without disturbing the conveyance of root vegetables. be able to.

  In the present invention, the leaf cutting transmission cases are provided separately on the left and right sides of the root vegetable conveyance path, respectively, and the power from the engine is mounted on the left and right sides of the leaf cutting transmission cases. A relay transmission mechanism for transmitting to each mechanism is provided in a state of being installed in a relay transmission case located on the lower side of the leaf cutting device and extending in the left-right direction, and the leaf cutting transmission cases on the left and right sides are It is preferable that the main frame is supported via the relay transmission case.

  According to this configuration, the power from the engine is transmitted to the left and right transmission mechanisms via the relay transmission mechanism. Then, by effectively using the relay transmission case that houses the relay transmission mechanism, the left and right leaf cutting transmission cases are supported by the main frame without complicating the configuration such as separately providing another support member. be able to. The leaf cutting device is supported by a leaf cutting transmission case on both the left and right sides.

  Accordingly, the leaf cutting transmission case and the leaf cutting device on both the left and right sides can be stably supported by the main frame.

  In the present invention, there is provided a guide plate that guides the leaf portion separated by the leaf cutting device and discharged from the rear end portion of the leaf cutting device to the outside of the machine body, and the guide plate is the relay transmission case. It is preferable that it is supported by.

  According to this configuration, since the leaf portion separated by the leaf cutting device is guided down to the outside of the machine body by the guide plate, there is no possibility that the leaf part accumulates in the machine body and interferes with the harvesting operation. The guide plate is preferably formed wide in the left-right direction in order to effectively guide the leaf portion, but the guide plate is formed wide in the left-right direction by effectively using the relay transmission case extending in the left-right direction. Even in this case, the guide plate can be stably supported.

  In the present invention, the pulling device is provided with a pair of pulling endless rotating bodies positioned on the left and right sides of the root vegetable conveyance path, and the pair of pulling endless rotating bodies are connected to the relay transmission case from the left and right side ends. A pair of left and right vertical transmission shafts for transmitting power to each other are provided, and a pair of left and right vertical transmission cases each having the vertical transmission shaft are respectively connected to the relay transmission case and a support frame of the extraction device, It is preferable that the drawing device is supported by the main frame via the vertical transmission case and the relay transmission case.

  According to this configuration, power is transmitted from the left and right end portions of the relay transmission case to the pair of pulling endless rotating bodies via the pair of left and right longitudinal transmission shafts. Then, the left and right pulling devices can be stably supported on the main frame by effectively using a pair of left and right vertical transmission cases that have a vertical transmission shaft.

It is a whole side view of a carrot harvester. It is a whole top view of a carrot harvester. It is a top view of a hair root cutting device. It is a side view which shows the rotary guide member of a hair root cutting device. It is a side view which shows the fixed guide member of a hair root cutting device. It is a side view of a leaf part separation part. It is a vertical side view of a leaf part separation part. It is a top view of a leaf part separation part. It is a vertical front view of a leaf part separation part. It is a top view which shows a positioning chain and a rotation cutter. It is a vertical front view which shows the action state of a positioning chain. It is a vertical rear view of the conveyance latter half part of the separation belt. It is a side view of a collection part. It is a rear view of a collection part. It is a transmission system diagram.

  Hereinafter, the case where the embodiment of the root vegetable harvester according to the present invention is applied to a carrot harvester for harvesting carrots as an example of root vegetables will be described based on the drawings.

〔overall structure〕
As shown in FIGS. 1 and 2, a carrot harvester, which is an example of a root vegetable harvester, includes a body frame 2 that is supported by a pair of left and right crawler travel devices 1, and is self-propelled by the power of an engine 3. A traveling machine body 4 is provided. In this traveling machine body 4, a boarding driving unit 6 having a driving seat 5, a harvesting unit 7 that pulls out a carrot a which is an example of a root vegetable from a farm field and travels to the rear of the machine body with the traveling of the machine, The leaf part separating unit 8 that cuts the leaf part of the carrot conveyed backward and separates and discharges it from the crop, the belt conveyor 9 that receives the crop from which the leaf part has been cut and conveys it to the rear, and the belt conveyor 9 sends it out. A transverse feed conveyor 10 that conveys carrots upward in the lateral direction of the machine body, a collection unit 12 that collects the carrot a from the transverse feed conveyor 10 with a collection bag 11 and the like are provided.

  The harvesting section 7 and the leaf section separating section 8 are rocked around the horizontal axis P1 with respect to the body frame 2 via a pair of left and right main frames 13 made of square pipe members extending in the longitudinal direction of the body. It is supported freely. The main frame 13 is supported by a hydraulic cylinder 14 pivotally connected to the front and rear intermediate portions of the main frame 13 and the body frame 2 so as to be movable up and down.

[Harvesting department]
The harvesting section 7 is provided on both the left and right pulling devices 15 and 16 for causing the leaves of the carrot a on both the left and right sides of the row of carrots that are planted in a row as the aircraft travels. A soil unwinding device 17 that penetrates into the soil and loosens the soil by applying vibrations, a pulling device 18 that pinches the leaf b of the carrot a, pulls out the carrot from the field and transports it to the rear side of the machine body, and transports the pulling device 18 A hair root cutting device 19 for cutting the hair root at the lower end of the carrot a is provided in the lower part of the carrot.

  The pulling devices 15 and 16 lift up the ginseng a plant that has been vegetated in the field by raising the nail 15a and 16a. Separated from the leaf and rips it up.

  The pulling device 15 on the left side is provided with a pulling claw 15a projecting forward on the endless rotating chain 15b that rotates about the horizontal axis, and acting on the left side of the planted carrot a. Thus, it is configured to be a vertical rotation type that raises and moves up the front side of the case 15c. Further, the right pulling device 16 is planted with a pulling claw 16a provided on the endless rotating chain 16b that rotates around the front and rear axis so that the tip side protrudes laterally. In order to act on the right side of the carrot a, it is constructed in a horizontal rotation type that raises and moves the left side portion of the case 16c.

  The soil unraveling device 17 includes a pair of left and right soil unraveling blades 17a. While driving the pair of soil unraveling blades 17a by driving, the soil unraveling device 17 pushes through the soil on the side of the carrot a to be harvested. The soil is loosened so that the carrot a can easily escape from the soil when it is pulled out from the field.

  The pulling device 18 is covered with the front cover 18a on the left and right front sides of the carrot passage route, and on the rear side of the front cover 18a, the conveyance start end is raised and located near the rear side of the devices 15 and 16, A pair of left and right endless rotation type conveyor belts 18b that are inclined backward and upward toward the rear end of the machine body are rotatably provided toward the conveyance end side. With this pair of left and right transport belts 18b, the carrot a to be harvested is pulled out from the field, and the leaf portion is subsequently sandwiched and transported upward in the hung posture.

  The pair of left and right conveying belts 18b are wound around a driving pulley 18c located on the upper side and a driven pulley 18d located on the lower side, and the power is transmitted to the driving pulley 18c to be driven. The drive pulley 18c, the driven pulley 18d, and the like are supported by support frames 18f provided on the rear surfaces of the left and right front covers 18a.

Next, the hair root cutting device 19 will be described.
As shown in FIG. 1, the root cutting device 19 is supported by a pair of left and right main frames 13 at a position located below the conveyance start end side of the drawing device 18.

  The hair root cutting device 19 is a pair of rotary blades 20 for cutting off the hair root at the lower end of the carrot a conveyed by the pulling device 18 around the horizontal axis P2 of the machine body, and the rotary blade 20 as the horizontal axis of the machine body. An electric motor 21 for driving the rotary blade that rotates around P2 and a lower end portion of the carrot a that is located on the outer peripheral side of the moving path of the rotary blade 20 and is conveyed by the drawing device 18 are guided to the rotary blade 20 and the carrot. And a guide portion 22 that regulates the length of entry of the lower end portion into the rotary blade movement path. The pair of rotary blades 20 are integrally connected by a connecting portion 23.

  The guide portion 22 includes a pair of guide members 22R and 22L located on both the left and right sides in the passage location of the carrot a conveyed by the pulling device 18, and the one guide member 22L located on the left side serves as a rotary guide member. The other guide member 22R that is configured and located on the right side is configured as a fixed guide member.

  As shown in FIGS. 3 and 5, the main body of the electric motor 21 for driving the rotary blade is mounted and supported on a bracket 24 connected and fixed to the side surface of the right main frame 13. A connecting portion 23 for connecting the pair of rotary blades 20 to the output shaft 21a is connected and fixed to rotate integrally. A fixed guide member 22R is integrally connected to the bracket 24.

  The electric motor 21 for driving the rotary blade is configured to drive the pair of rotary blades 20 at a high speed so that the root of the carrot a can be cut. Is set to rotate in the opposite direction.

  As shown in FIGS. 3 and 5, the fixed guide member 22 </ b> R includes an arcuate guide rod 25 in which a round bar is curved in an arcuate shape, and a straight line extending radially outward from the arcuate guide rod 25. The linear guide rod 26 extended in the shape is provided. The arc-shaped guide rod 25 is concentrically provided on the radially outer side of the movement locus of the rotary blade 20.

  As shown in FIGS. 3 and 4, the rotary guide member 22 </ b> L is supported by a bracket 24 connected and fixed to the side surface of the left main frame 13. The rotary guide member 22L has an annular guide rod 27 in which a round bar is curved in an annular shape, and an appropriate interval in the circumferential direction on the opposite side of the annular guide rod 27 from the passage of the carrot a. And a linear guide rod 28 extending in a cantilever shape radially outward. The annular guide rod 27 is provided concentrically on the radially outer side of the rotation locus of the rotary blade 20.

  The rotary guide member 22L is supported by a support member 29, which is connected in a state extending over three linear guide rods 28 spaced apart in the circumferential direction, so as to be relatively rotatable around the horizontal axis P2 with respect to the bracket 24. ing. That is, the rotary guide member 22L is supported by the main frame 13 in a free rotating state.

  An annular guide rod 27 in the rotary guide member 22L and an arcuate guide rod 25 in the fixed guide member 22R are arranged in a state where they are arranged at a set interval in the lateral width direction of the body. By guiding the lower end portion of the carrot a to the rotary blade 20 through the gap formed in step 1, the root cutting process by the rotary blade 20 can be performed satisfactorily.

  The fixed guide member 22R and the rotary guide member 22L are each provided with a plurality of linear guide rods 26, 28 made of a round bar at intervals. An opening for removing mud is formed. That is, even if mud adhering to the carrot a may fall, it can be discharged through the mud opening. Further, when the rotary guide member 22L freely rotates by sliding contact with carrots or the like, it is possible to prevent the mud that has been deposited from being shaken off and deposited.

(Leaf separation part)
Next, the leaf portion separation unit 8 will be described.
As shown in FIGS. 6 to 10, the leaf part separating unit 8 includes a plurality of rotating bodies 30, and a leaf cutting device 31 that separates the leaf part b of the carrot a that is conveyed rearward by the extraction device 18. A transmission mechanism 32 for branching and transmitting the power transmitted from the engine 3 to the plurality of rotating bodies 30 of the leaf cutting device 31 and a leaf cutting transmission case 33 disposed above the leaf cutting device 31; I have.

  The leaf cutting device 31 includes a positioning endless rotating chain (hereinafter abbreviated as a positioning chain) 34 as a positioning endless rotating body for positioning the carrot a in the vertical direction as a plurality of rotating bodies 30, and a carrot a. The leaf end b and the carrot a are cut while being conveyed by the separation endless rotation belt (hereinafter abbreviated as separation belt) 35 and the separation belt 35 as the separation endless rotation body to be conveyed rearward. A rotary cutter 36 is provided as a cutting device for separation. Each of the positioning chain 34, the separation belt 35, and the rotary cutter 36 is provided below the leaf cutting transmission case 33.

  As shown in FIG. 15, the positioning chain 34, the separation belt 35, the rotary cutter 36, and the leaf cutting transmission case 33 are respectively left and right of the conveyance path of the carrot a that is conveyed rearward by the drawing device 18. It is provided separately on each side. As shown in FIG. 7, a plurality of transmission shafts 37, 38, 39 are provided in a state of projecting downward from the leaf cutting transmission case 33, and each of the positioning chain 34, the separation belt 35, and the rotary cutter 36 is provided. , Supported by transmission shafts 37, 38, 39.

  That is, the positioning chain 34 is integrated with the drive sprocket 40 attached to the first transmission shaft 37 as a transmission shaft protruding downward from the left and right leaf cutting transmission case 33 and the front part of the left and right leaf cutting transmission case 33. It is wound over a driven sprocket 43 that is rotatably attached to a transmission shaft 42 that protrudes downward from a connection bracket 41 that is connected to the other.

  As shown in FIGS. 10 and 11, the left and right positioning chains 34 rotate to the respective link plates 44 so as to be slidable in the direction crossing the transfer path, and to the front end side of the slide rod 45. A guide roller 46 that is freely supported and a clamping spring 47 that urges the slide rod 45 to move outward are provided.

  The left and right positioning chains 34 act so as to sandwich a portion of the carrot a between the portion of the leaf portion b of the carrot a that the pulling device 18 lifts and conveys and the conveyance belt 18b of the pulling device 18 sandwiched.

  Even after the carrot a has entered between the left and right positioning chains 34, the pulling device 18 lifts and transports the carrot a and holds the leaf b with the left and right positioning chains 34, and the rotating cutter 36 in a suspended posture. Will be transferred to. At this time, the clamping force exerted by the clamping spring 47 is set to be smaller than the clamping force provided in the pulling device 18.

  Therefore, as the carrot a is transported by the drawing device 18, the carrot a enters the space between the left and right guide rollers 46 and is then moved backward. At that time, the carrot a is raised with respect to the guide roller 46, and at the conveyance end side of the positioning chain 34, as shown in FIG. The roller 46 acts as a stopper so that it does not rise further against the carrot a.

  When the carrot a is supplied to the rotary cutter 36 and the leaf b is cut, the carrot a is supplied to the rotary cutter 36 so that the carrot a is cut at a portion slightly away from the upper end of the carrot a. The positioning of the carrot a with respect to the rotary cutter 36 is performed.

  As shown in FIGS. 7 and 15, the separation belt 35 includes a drive pulley 48 attached to a second transmission shaft 38 as a transmission shaft that protrudes downward from the rear side of the machine body of the left and right leaf cutting transmission case 33, and a first pulley 48. 1 is wound around a driven pulley 49 supported on a transmission shaft 37 so as to freely rotate. The conveyance start end side of the separation belt 35 is located below the conveyance end portion of the drawing device 18 and above the conveyance end portion of the positioning chain 34.

  In other words, the separation belt 35 takes in and holds the leaf portion b of the carrot a after the positioning by the positioning chain 34 from the pulling device 18 and the positioning chain 34 and conveys it in a hanging posture toward the rear of the machine body. Supplied between the left and right rotating cutters 36. Then, the leaf that has been cut by the rotary cutter 36 and separated from the carrot a is sandwiched as it is, further conveyed toward the rear of the machine body, and the clamping is released behind the rotary cutter 36.

  As shown in FIGS. 7 and 15, the rotary cutter 36 is attached so as to rotate integrally with a third transmission shaft 39 as a transmission shaft protruding downward from the rear side of the machine body of the left and right leaf cutting transmission case 33. . The rotating cutters 36 on both the left and right sides are provided in a partially overlapping state so that the leaf portion b of the carrot a held and conveyed by the separation belt 35 can be appropriately cut.

  The carrot a separated from the leaf part b by the leaf part separating unit 8 falls on the lower belt conveyor 9, and the cut leaf part b is conveyed rearward by the separating belt 35 and then guided as a guide body. The chute 50 guides the flow down toward the conveying end of the belt conveyor 9 and drops it onto the field behind the machine body.

  As shown in FIGS. 2 and 15, a rotationally driven guide roller 51 is provided above the middle part of the conveyor belt 9. The guide roller 51 has a rotating shaft center with respect to the conveying direction of the belt conveyor 9 so that the end positioned on the side of the transverse conveyor 10 is positioned on the lower conveyance side of the belt conveyor 9 than the opposite end. It is provided in an inclined posture, and the carrot a conveyed by the belt conveyor 9 is guided to move laterally outward and moved to the lateral feed conveyor 10.

  Although not shown in the drawings, the transverse conveyor 10 includes a plurality of mounting rods 10b arranged in the transverse direction of the machine across endless rotating chains on both the front and rear sides supported by the conveyor frame 10a. a is placed and conveyed on the right side of the traveling machine body 4 and obliquely upward, and supplied to the collection unit 12. Reference numeral 10A in FIG. 2 denotes an auxiliary seat on which an auxiliary worker who performs a sorting operation visually is seated.

  The collection unit 12 includes a container receiving support 52 that is positioned below the conveyance end of the lateral feed conveyor 10 and a container support 53 provided at the end of the lateral feed conveyor 10. A container 55 made of cloth sewn so as to have an opening 54 at the upper end portion is in a state where the bottom side is received and supported by the support base 52, and the upper opening side is suspended and supported by the container support portion 53. 10 is installed below.

  As shown in FIGS. 13 and 14, the container support 53 includes a front and rear support rod 57 connected to the conveyor frame 10 a via a connection arm 56, and a hanger body 58 supported by both ends of the support rod 57. And. Each hanger body 58 includes a hanging tool 59 provided at both ends thereof.

  The container support portion 53 engages both hanging tools 59 of one hanger body 58 with one of a pair of lifting belts 60 provided in the container 55, and connects both hanging tools 59 of the other hanger body 58 to the other of the container 55. By engaging with the lifting belt 60, the opening side of the container 55 is suspended and supported. By fixing the opening edge portion of the container 55 to the rod portion 58a of each hanger body 58 by using a fixing tool 61 or the like, the container support portion 53 keeps the opening 54 of the container 55 in an appropriate open state. To do.

  The transverse feed conveyor 10 is supported so as to be rotatable around an axis P3 along the longitudinal direction of the machine body on the base end side. An elevating hydraulic cylinder 62 is pivotally connected to the lower side of the transverse conveyor 10, and the elevating hydraulic cylinder 62 can be expanded and contracted to adjust the conveyance end of the transverse conveyor 10 up and down. Can be collected while avoiding carrot damage due to falling into the container 55 from the transverse feed conveyor 10.

  Although not shown, at the start of the operation, the lifting hydraulic cylinder 62 is driven to the lowering side to lower the conveyance end side portion of the transverse conveyor 10 and the height from the support base 52 is lowered. Further, when the upper surface level of the carrot group collected in the container 55 is increased and the accommodation space of the container 55 is reduced, the lifting hydraulic cylinder 62 is driven to the ascending side, and the conveyance end portion of the transverse feed conveyor 10 is started to be collected. Adjust the rise more than the time.

  The support base 52 is pivotally supported by a pair of support portions 64 provided at the rear end portion of the auxiliary base 63 located on the front side of the body relative to the support base 52, and includes an operation arm portion 65 and an auxiliary base. A motor-driven cylinder mechanism 67 connected to the support arm 66 of 63 is moved up and down with respect to the auxiliary base 63 around the axis P4.

  When the electric motor 68 included in the cylinder mechanism 67 is driven, the cylinder mechanism 67 is driven to the extension side by the electric motor 68 and swings the operation arm portion 65 around the axis P4 to the rear side of the machine body. As a result, the support base 52 is lowered to a rearwardly lowered chute posture around the horizontal axis P4 as shown by a two-dot chain line in FIG. 13, and the container 55 is easily lowered from the support base 52.

[Transmission structure]
Next, the transmission structure will be described.
As shown in FIG. 15, the motive power of the engine 3 provided on the lower side of the boarding operation unit 6 is transmitted through the first transmission belt 69, the first intermediate transmission shaft 70, and the second transmission belt 71. It is transmitted to the transmission shaft 72. The power of the second intermediate transmission shaft 72 is transmitted to the belt conveyor 9, the transverse feed conveyor 10, and the guide roller 51. Further, the power of the second intermediate transmission shaft 72 is supplied from the vibration device 78 to the soil unloading device 17 via the third transmission belt 73, the third intermediate transmission shaft 74, the bevel gear mechanism 75, the fourth intermediate transmission shaft 76, and the bevel gear mechanism 77. Further, it is transmitted to the pulling device 16 on the right side via the fifth intermediate transmission shaft 79, the bevel gear mechanism 80, and the sixth intermediate transmission shaft 81 facing forward and backward. Further, it is also transmitted to the left raising device 15 via the bevel gear mechanism 82.

  The power of the engine 3 is transmitted to the hydrostatic continuously variable transmission 85 which is the main transmission portion of the traveling mission 84 via the transmission belt 83 and is transmitted to the left and right traveling apparatuses 1 via the traveling mission 84. The The power after shifting of the continuously variable transmission 85 is transmitted to the leaf cutting device 31 and the drawing device 18 via the transmission belt 86 and the laterally-facing seventh intermediate transmission shaft 87.

  That is, power is transmitted from the left end of the seventh intermediate transmission shaft 87 to the relay transmission mechanism 90 via the bevel gear mechanism 88 and the vertical relay transmission shaft 89. As shown in FIG. 9, the relay transmission mechanism 90 is provided in a state of being housed in a relay transmission case 91 that is positioned below the leaf cutting device 31 and extends in the left-right direction, and transmits power from the engine 3 to the left and right sides. And the left and right leaf cutting transmission mechanisms 32, which are housed in the left and right leaf cutting transmission cases 33, respectively.

  The seventh intermediate transmission shaft 87 is located on the same axis as the swing axis P3 of the main frame 13. The lower end portion of the vertical case 92 that houses the vertical relay transmission shaft 89 is connected to a position corresponding to the swing fulcrum position of the left main frame 13, and is integrated with the main frame 13 around the horizontal axis P <b> 3. It is provided so that it can swing freely.

  The upper end portion of the vertical case 92 is connected to the left end portion of the relay transmission case 91. Further, an upper portion of a connecting rod 93 whose lower portion is connected to the right main frame 13 is connected to the right end portion of the relay transmission case 91. Therefore, the relay transmission case 91 is supported by the left and right main frames 13 at both the left and right sides.

  As shown in FIGS. 9 and 15, in the relay transmission mechanism 90, the power from the vertical relay transmission shaft 89 is transmitted to the lateral transmission shaft 95 via the bevel gear mechanism 94, and is transmitted to the left and right ends of the lateral transmission shaft 95. The light is transmitted to a longitudinal transmission shaft 97 extending obliquely forward and upward through a bevel gear mechanism 96 provided. Power is transmitted from the sprocket 98 provided at the upper ends of the left and right vertical transmission shafts 97 to the drive sprocket 100 of the left and right extraction devices 18 by the relay transmission chain 99.

  As shown in FIG. 9, the vertical transmission shafts 97 on the left and right sides are respectively housed in the vertical transmission case 101. Each of the vertical transmission cases 101 on both the left and right sides has a lower portion connected to the relay transmission case 91 and an upper portion connected to an upper side portion of the support frame 18 f of the extraction device 18. Further, a lower side portion of the support frame 18 f of the extraction device 18 is connected to the main frame 13. The intermediate support frame 103 is connected between the upper and lower intermediate portions of the support frame 18 f of the drawing device 18 and the front and rear intermediate portions of the main frame 13. Accordingly, the pulling device 18 is connected to the main frame 13 at both the upper and lower side portions and the intermediate portion, and is supported by the body frame 2 so as to be swingable around the horizontal axis P3 together with the main frame 13.

  As shown in FIGS. 9 and 15, the power transmitted to the lateral transmission shaft 95 in the relay transmission mechanism 90 is a bevel gear mechanism 104 provided at a position slightly laterally intermediate from both lateral ends of the lateral transmission shaft 95, and Then, it is transmitted to the left and right leaf cutting transmission mechanisms 32 provided in the left and right leaf cutting transmission cases 33 via the leaf transmission branching transmission shaft 105 extending upward.

  As shown in FIGS. 7 and 15, in the left and right leaf cutting transmission mechanisms 32, power is transmitted from the branch transmission shaft 105 to the front-rear transmission shaft 107 via the bevel gear mechanism 106. Power from the front-rear transmission shaft 107 is transmitted to the first transmission shaft 37 via the first bevel gear mechanism 108, and the positioning chain 34 is rotationally driven. Further, the power from the longitudinal transmission shaft 107 is transmitted to the second transmission shaft 38 via the second bevel gear mechanism 109, and the separation belt 35 is rotationally driven. Then, the power from the front-rear transmission shaft 107 is transmitted to the third transmission shaft 39 via the third bevel gear mechanism 110, and the rotary cutter 36 is driven to rotate.

[Support structure for guide chute, cover, etc.]
The leaves after the carrots have been cut off are further conveyed to the rear side of the machine body by the separation belt 35 and discharged rearward from the conveyance end portion, and flow down toward the conveyance end side of the belt conveyor 9 by the guide chute 50. Guided. Thereafter, after dropping downward from the rear end of the belt conveyor 9, it is guided downward by the drop guide plate 111 toward the right side of the machine body and discharged to the ground. As shown in FIGS. 1, 6, and 12, the guide chute 50 that guides the leaf portion discharged from the separation belt 35 to flow down is supported via a support member 112 at a location on the rear side of the relay transmission case 91. The guide chute 50 is stably supported by using the relay transmission case 91 having a high support strength that houses the relay transmission mechanism 90. FIG. 6 shows a state in which the guide chute 50 is housed on the inner side of the body.

  As shown in FIG. 12, a pair of left and right side cover bodies 113 are provided on both the left and right sides of the carrot conveyance path that is nipped and conveyed by the separation belt 35 so as to cover both the left and right sides of the region through which the leaf portion passes. . The side cover bodies 113 are formed in a substantially L shape when viewed from the front of the machine body, and are arranged on both the left and right sides with their lower ends facing each other so as to form a gap through which the carrot leaves pass. The separation belt 35 is provided in a state extending in the front-rear direction over substantially the entire length of the conveyance path.

  The left and right side cover bodies 113 are respectively supported by the left and right leaf cutting transmission cases 33 in a state where they are connected by bolts in the middle in the front-rear direction. The left and right side cover bodies 113 are stably supported by using a leaf cutting transmission case 33 having a high support strength that houses the leaf cutting transmission mechanism 32.

  To the upper ends of the left and right side cover bodies 113, the laterally inner side portions of the upper cover bodies 114 on both the left and right sides that cover the upper side of the leaf cutting device 31 are connected. A laterally outward side portion of the upper cover body 114 is connected to a body exterior cover (not shown).

[Another embodiment]
(1) In the above-described embodiment, the leaf cutting device 31 includes the positioning chain 34, the separation belt 35, and the rotating cutter 36 as a plurality of rotating bodies. For example, a configuration including only the separation belt 35 and the rotary cutter 36, a configuration including an endless rotating chain and a rotary cutter instead of the separation belt 35, and the like may be used.

(2) In the above embodiment, each of the positioning chain 34, the separation belt 35, the rotating cutter 36, and the leaf cutting transmission case 33 is provided on each of the left and right sides of the carrot conveyance path. Instead of such a configuration, each of the above-described units may be provided only on one side of the carrot conveyance path.

(3) In the above embodiment, a plurality of transmission shafts 37, 38, 39 are provided in a state of projecting downward from the leaf cutting transmission case 33, and a plurality of rotating bodies (positioning chain 34, separation use) are provided on this transmission shaft. Each of the belt 35 and the rotary cutter 36) is supported, but instead of this configuration, a plurality of rotating bodies (positioning chains, separation belts, rotations) are provided by a support member provided separately from the leaf cutting transmission case 33. It may be configured to support a cutter or the like.

(4) In the above embodiment, the leaf cutting transmission case 33 on both the left and right sides is supported by the main frame 13 via the relay transmission case 91, but instead of this configuration, other than the relay transmission case 91 It is good also as a structure supported to the main frame 13 via another support member.

(5) In the above-described embodiment, the guide chute 50 that guides the leaf portion discharged from the rear end portion of the leaf cutting device 31 down to the outside of the machine body is supported by the relay transmission case 91. Instead of the configuration, it may be configured to be supported by a support member other than the relay transmission case 91.

(6) In the above-described embodiment, the extraction device 18 is supported by the main frame 13 via the vertical transmission case 101 and the relay transmission case 01. However, instead of this configuration, the extraction device 18 is supported by strength. It is good also as a structure supported to the main frame 13 using a large exclusive support frame.

(7) In the above embodiment, a carrot harvester that harvests ginseng as a root vegetable is illustrated, but the root vegetable can be applied to a root vegetable harvester that harvests various root vegetables such as radish and burdock in addition to carrots.

  The present invention can be applied to a root vegetable harvesting machine for harvesting root vegetables such as carrots and radishes.

DESCRIPTION OF SYMBOLS 3 Engine 13 Main frame 18 Pull-out device 18b Endless rotation body for extraction 18f Support frame 30 Rotation body 31 Leaf cutting device 32 Transmission mechanism 33 Leaf cutting transmission case 34 Endless rotation body for positioning 35 Endless rotation body for separation 36 Cutting device 50 Guide plate 37, 38, 39 Transmission shaft 90 Relay transmission mechanism 91 Relay transmission case 97 Vertical transmission shaft 101 Vertical transmission case

Claims (5)

A drawing device that pulls out root vegetables from the field as the machine runs and conveys them to the rear side of the machine, and a leaf cutting device that includes a plurality of rotating bodies and separates leaf parts of the root vegetables that are conveyed rearward by the drawing device When provided with a deployed leaf-cutting transmission case on the upper side than the leaf cutting device as well as interior a transmission mechanism for branching transmitting power transmitted from the engine to a plurality of rotating body of the leaf-cutting device ,
The leaf cutting device is transported by a positioning endless rotating body for positioning the root vegetables in the vertical direction, a separation endless rotating body for transporting the root vegetables backward, and the separation endless rotating body as a plurality of rotating bodies. A cutting device that cuts and separates the root vegetables and leaves from the root vegetables
Each of the positioning endless rotating body, the separation endless rotating body, and the cutting device is provided on the lower side of the leaf cutting transmission case,
The leaf cutting transmission case is provided separately on each of the left and right sides of the root vegetable conveyance path,
In the leaf cutting device, a pair of left and right side cover bodies covering the left and right sides of the region through which the root part of the root vegetable conveyed by the endless rotating body for separation passes are supported by the leaf cutting transmission cases on the left and right sides, respectively. Has been
Each of the pair of left and right side cover bodies has a part extending in the vertical direction and a part extending outward from the upper end of the part extending in the vertical direction in front view,
The parts extending in the vertical direction in the pair of left and right side cover bodies are root vegetable harvesting machines that are located between the left and right leaf cutting transmission cases in a front view, respectively . A plurality of transmission shafts are provided in a state of projecting downward from the leaf cutting transmission case,
The endless rotary body for positioning said endless rotary body for separation, and, root harvesting machine according to claim 1, wherein each of the cutting device is supported by the transmission shaft. The leaf cutting transmission case is provided separately on each of the left and right sides of the root vegetable conveyance path,
A relay transmission mechanism that transmits power from the engine to the left and right transmission mechanisms housed in the left and right side leaf cutting transmission cases is located below the leaf cutting device and extends in the left and right direction. It is provided in a state where it is installed in
The root vegetable harvester according to claim 1 or 2 , wherein the leaf cutting transmission cases on the left and right sides are supported by a main frame via the relay transmission case. A guide plate is provided that guides the leaf portion separated by the leaf cutting device and discharged from the rear end portion of the leaf cutting device to the outside of the machine body,
The root vegetable harvester according to claim 3, wherein the guide plate is supported by the relay transmission case. The pulling device is provided with a pair of pulling endless rotating bodies located on the left and right sides of the root vegetable conveyance path,
A pair of left and right vertical transmission shafts for transmitting power from the left and right side ends of the relay transmission case to each of the pair of pulling endless rotating bodies;
A pair of left and right vertical transmission cases, each of which internally houses the vertical transmission shaft, are connected across the relay transmission case and a support frame of the extraction device,
The root vegetable harvester according to claim 3 or 4 , wherein the pulling device is supported by the main frame through the vertical transmission case and the relay transmission case.

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