JPH1126A - Stem treating mechanism for mobile type stem treating machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject mechanism, capable of readily removing entangled stems, sticking soil, mud, etc., and preventing belts from disengaging and useful for harvesting sweet potatoes, etc., by installing scrapers for removing sticking materials on winding surfaces of the belts on the surfaces of rolling units for winding the belts. SOLUTION: This stem treating mechanism for a mobile type stem treating machine is obtained by installing scrapers 61 for removing sticking materials on surfaces of rolling units 60 for winding belts 24 used for raking in or conveying stems on the surfaces of the rolling units 60 for winding the belts 24. Furthermore, disengagement preventing members 24a are preferably formed on the surfaces to be wound with the belts 24, which are divided into the front and rear parts. Cover units for covering the rear belt front ends of the divided belts 24 are preferably installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for removing stems of potatoes and potatoes cultivated from high ridges or flat ridges from the roots.
The present invention relates to a traveling stalk processor that can be picked up by a transfer device and collected on a side of a ridge remote from the ridge.

[0002]

2. Description of the Related Art Conventionally, a traveling stalk processor that stalks potatoes, potatoes, and the like with a scraping device and pulls up the stalks with a nipping and transporting device to tear between a potato in a ridge and the stalks is the same. An earlier application has been filed by the applicant. In the stalk processing mechanism of this traveling stalk processing machine, a rake tine, a nipping and conveying belt, and the like are provided for conveying and discharging the stalk to the rear of the rake body, and are wound around a pulley, a tension roller, or the like. Was.

[0003]

However, the pulleys and tension rollers of the above-mentioned stalk processing mechanism are entangled with the stalks which are scraped and conveyed, or soil or mud adheres to the stalks.
The belt or the like is pinched between the pulley and the tension roller and the belt or the like, causing the belt or the like to come off.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, in a stalk processing mechanism of a traveling stalk processor that pulls out and discharges stalks while running, the stalks are scraped or the belt winding surface of a rolling element that winds a conveying belt is attached to the belt winding surface. That is, a scraper was provided to remove the deposits.

In a stalk processing mechanism of a traveling stalk processor for pulling out and discharging a stalk while running, the stalk is scraped.
Alternatively, a belt that conveys the stem is wound around a rolling element, and a slip-off preventing member is formed on a surface to be wound of the belt.

In a stalk processing mechanism of a traveling stalk processor for pulling out and discharging stalks while traveling, the stalks are scraped.
Alternatively, a belt that conveys stems is divided into front and rear portions, and a cover body that covers a front end portion of a rear belt of the divided belt is provided.

[0007]

Next, an embodiment of the present invention will be described. FIG. 1 is an overall side view showing a traveling stalk processor equipped with a weeding guide of the present invention, FIG. 2 is an overall plan view thereof, and FIG. 3 is a sectional view showing a pivot point for pivotally supporting a stalk processing mechanism. 4 is a plan view showing a front portion of the scraping device and the nipping and conveying mechanism, FIG. 5 is a plan view showing a rear part of the nipping and conveying mechanism, FIG. 6 is a side view of FIG.
FIG. 8 is a side sectional view showing a scraper and a nipping and conveying belt, FIG. 8 is a side view showing another embodiment of the scraper, and FIG. 9 is a front view showing an urging spring for urging the left and right nipping and conveying belts.

First, an overall configuration of a traveling stalk processor as an embodiment of the present invention will be described. 1 and 2, a traveling mechanism B mainly includes left and right traveling wheels 11, an engine E, and a steering wheel H. A transmission case M is fixedly provided on the left side in the traveling direction of the engine E, and a crankshaft of the engine E transmits power to the inside of the transmission case M. After shifting within the transmission case M, power is transmitted to the traveling wheels 11 via the traveling drive case 13. A traveling frame 19 that supports the traveling mechanism B is provided from the engine E and the transmission case M to the front end of the fuselage. Excavation plates 16 and 16 and guide wheels GG provided on the left and right are It is supported by the traveling frame 19. A pivot point P is provided at an intermediate portion of the traveling frame 19 in the front-rear direction, and a stalk processing mechanism A including a raking device 14, a ridge pressing roller mechanism T, a nipping and conveying device F, and the like,
It is configured to be able to turn up and down around the pivot point P.

A front end of the traveling drive case 13 is mounted on a wheel height frame 17 projecting downward from the traveling frame 19 so as to be vertically adjustable by a bolt. Case M
Is pivotally supported by a pivot portion 18 so as to be rotatable up and down.
Therefore, by adjusting the mounting position of the traveling drive case 13 and the wheel height frame 17, the height of the traveling mechanism B with respect to the ground can be adjusted, whereby the height of the stalk processing mechanism A with respect to the height of the ridges can be adjusted. Is adjustable.

The engine E and the transmission case M that constitute the traveling mechanism B are integrally fixed, and the traveling frame 19 protrudes forward from the engine E and the transmission case M. A steering handle H projects upward and rearward from the traveling frame 19, and the steering handle H extends to above the engine E.
A PTO shaft projects from the front of the transmission case M, and a PTO joint shaft 15 is connected to the PTO shaft. A front end of the PTO joint shaft 15 is connected to a rotation center gear case K rotatably disposed on the traveling frame 19.
The pivot point P is provided on the rotation center gear case K.

The stalk processing mechanism A includes a scraping device 14
, A ridge holding roller mechanism T, a holding and conveying device F, and the like.
1 is pivotally supported by a horizontal drive shaft 25 in a rotation center gear case K, and the axis of the horizontal drive shaft 25 is set as a pivot point P. The support frame 46 of the ridge holding roller mechanism T
The left and right roller units 2L and 2R of the ridge pressing roller mechanism T are configured to be vertically rotatable and adjustable in vertical position. .

A rotating frame 40 is fixedly mounted on the horizontal drive shaft 25 so as to protrude downward, and an expandable and contractible pipe 41 is disposed below the engine E. And the lower end of the rotation frame 40 are rotatably connected. The telescopic pipe 41 is
By rotating an adjustment lever 42 rotatably attached to the rear end of the device 1, it is configured to expand and contract. When the adjusting lever 42 is rotated, the telescopic pipe 41 expands and contracts, and the rotating frame 40 rotates about the pivot point P, and the stem processing mechanism A is vertically rotated integrally with the rotating frame 40. I do. Thereby, the tip position of the stalk processing mechanism A can be adjusted in the vertical direction according to the ridge height. An elastic body S including a gas spring mechanism is interposed between the stalk processing mechanism A and the traveling mechanism B.

[0013] Excavation plate 16, 16 disposed at the tip of the fuselage
The guide wheels GG are supported by a traveling frame 19 that constitutes the traveling mechanism B. The excavation plate 16
Is disposed at the tip of the frame 19, and is constituted by a plate-like member formed in a substantially triangular shape in a side view. Then, the excavating plates 16 pass through the inside of the groove between the ridges, dig and raise the stems with roots in the grooves, and rake the stalks constituting the stalk processing mechanism A. It is transported to the devices 14.

The stalks rooted in the grooves are pulled up by the digging plates 16 and 16 and the stalks are scraped by the scraping tines 27 of the scraping devices 14, 14. By transporting the potatoes upward and backward while being pinched by 24, and by pressing the potatoes in the ridges so as not to float up by the ridge pressing roller mechanism T, the original portions of the potato stalks are torn off. The original portion of the potato stalk can be cut by a cutter or the like, but there is a risk of damaging the potato.
With the action of pulling at 4, the stem is torn off.

When weeding by the excavating plates 16 and scraping by the raking devices 14, the stems prosper to the adjacent ridges or the ridges of the adjacent ridges work. There are cases where stems are entangled due to entry into the ridges. If you pull the stem in such a state as it is, you may dig up the potatoes on the next unpressed ridge,
A stem cutting device C for preventing this is disposed at the tip of the frame 19. The stalk cutting device C is composed of reciprocating blades arranged in the vertical direction, and is provided with a stalk cutting device clutch mechanism in conjunction with the ON operation of the work clutch lever 81 for switching the drive of the stalk processing mechanism A or separately. Then, driving is started. A weeding guide 43 is disposed above the stalk cutting device C, the stalk above the ridge is guided to the stalk cutting device C by the weeding guide 43, and the stalks are scraped by the scraping devices 14. I am trying to put it. A crank portion including a crankcase 23 and the like is disposed on the side of the rotation center gear case K, and the stem portion driving device C is driven by the crank portion via the crank interlocking link 12. The drive clutch mechanism of the stem cutting device C is disposed in the rotation center gear case K.

The scraping tines 27.2 of the scraping devices 14 and 14
The stalks scraped and torn off by the stalk 7 are conveyed rearward by the nipping and conveying belt 24 while the stalking device 14.
4 is transferred to the transfer tines 26 of the sandwiching transfer mechanism F disposed rearward above the scraping devices 14.
Then, the sheet is further conveyed rearward by the conveying tine 26 and the nipping conveying belt 24 and discharged to the rear of the machine.
As described above, the stalk processing mechanism A includes the nipping and conveying belts 24 and 24 disposed from the front part to the rear part of the machine body, and the tines disposed and divided into two parts in front and rear above the nipping and conveying belts 24 and 24. The belt is constituted by a rake tine 27, which is a front belt, and a transport tine 26, which is a rear belt. The stem on the ridge is torn off, transported and discharged.

As shown in FIG. 2, the nipping / conveying device F is configured so that the stem discharging direction can be switched to the left and right by rotating the upper portion thereof left and right. If the holding and conveying device F is straightened without bending to the left and right, the stem can be dropped to the rear of the ridge for cutting the stem, and if bent to the left and right, the stem is discharged to the groove of the adjacent strip. In addition, the stem can be discharged into the groove of the next two or three adjacent strips. in this way,
In the present embodiment, it is configured to be rotatable in three stages on each side of the left and right, and to be able to adjust the discharge position switching to seven stages by adding the center position. The number of adjustment stages is not limited to the number of stages in the present embodiment, and may be appropriately set to an appropriate number of stages.

Next, FIG. 3 shows a power transmission configuration of the rotation center gear case K. A rack gear 20 is disposed on a drive shaft portion inside the rotation center gear case K, and the rack gear 20 and the PTO joint shaft 1
The pinion gear fixed to the front end of the gear 5 meshes with the pinion gear, and the pinion gear rotates the rack gear 20. The rotation of the rack gear 20 is transmitted to the horizontal drive shaft 25 by the bevel gears 22, and the drive shaft 25 drives the crankcase 23 that drives the crank link 12. Further, the conveyance belt drive shaft 31 is rotated by the rotation of the rack gear 20, and the nipping conveyance belt 24 is driven.

Next, the stalk processing mechanism A will be described. 4 to 6, in front of the stalk processing mechanism A, a scraping device 14 is disposed, and the scraping device 14 is mainly configured by a scraping tine 27 and pulleys 50, 51, and 52. ing. The pulleys 50 are pivotally supported by a drive shaft 31 that drives the stalk processing mechanism A. The pulleys 50 rotate integrally with the drive shaft 31 to form a pair of left and right scraping tines 27.
7 is driven. Nipping and conveying belts 24 are disposed from the front to the rear of the fuselage.
A pair of left and right transfer tines 26 is disposed above the rear portions of the nipping and conveying belts 24. These transport tines 26, the nipping transport belts 24, 24, etc., constitute a nipping transport device F.

The front portion of the nipping and conveying belt 24 is wound around drive pulleys 70 and 53. The drive pulley 70 is supported by a drive shaft 31 and is driven by the drive shaft 31. A sprocket is fitted on the shaft 32 that supports the drive shaft 31 and the drive pulley 53, and a chain 36 is wound around both sprockets so that the drive pulley 53 is driven in conjunction with the drive pulley 70. I have. Tension rollers 54 are disposed between the driving pulley 70 and the driving pulley 53, and the tension rollers 54 are urged to press the inside of the nipping and conveying belt 24 to tension the nipping and conveying belt 24. The left and right tension rollers 54 are alternately arranged at different positions, and are respectively urged by the nipping and conveying belts 24 in a direction in which the stems can be nipped. Also, the driving pulley 53
An outside tension roller 55 that tensions the nipping and conveying belt 24 from the outside is disposed behind the outside.

Behind the driving pulley 70, a pulley 58
60 are disposed, and the nipping and conveying belt 24 is wound. The driving pulley 70 and the pulley 58 are
, And the pulley 58 and the pulley 60 are connected to the support rod 65 and the urging rod 80 and the like. Between the pulley 58 and the pulley 60, triple tension rollers 59, 59, 59 are disposed, and the triple tension rollers 59, 59, 59 are connected by a connecting rod 66. The connecting rod 66 is connected to the supporting rod 65 by two urging arms 67 and is urged inward. The left and right triple tension rollers 59, 59
The tension rollers 59 are arranged so as to be staggered, so that the inside of the nipping and conveying belt 24 is uniformly pressed so that the stem can be reliably nipped.

When the rear end of the holding and conveying device F is rotated left and right, the drive pulley 70 is bent and the pulley 5 is moved.
8 is bent, and the rear part of the nipping and conveying belt 24 is rotated. Outside the driving pulleys 70, two outer tension rollers 56 and 57 are disposed, and the rear part of the nipping and conveying belt 24 is rotated. Depending on the degree, the rollers 56 and 57
One or both are configured to tension the sandwiching and conveying belt 24 from the outside. The left and right pulleys 58
Reduction springs 75, 75 are interposed between the rotating shafts 34, 34 supporting the 58, and between the left and right support rods 65, 65, and pinch the stems of the left and right holding and conveying belts 24, 24. Biased in the direction. The reduction springs 75 are covered by a protective cover that is configured to be extendable and contractible. In FIG. 6, the urging rod 80 is urged in the front-rear protruding direction by an urging spring 76 to tension the nipping and conveying belt 24.

The transport tine 26 is disposed above the rear portion of the nipping transport belt 24. The transport tine 26 is wound around pulleys 68 and 69. The pulley 69 is supported by a shaft 33 that supports the pulley 60, and rotates integrally with the shaft 33 that is driven by the rotation of the nipping and conveying belt 24. The pulley 68 is located substantially above the drive shaft 31. The scraping tines 14 and 14 are covered with scraping tine covers 72 and 72 above the transport tine 26, and the transport tines 26 and 26 are transported above the transport tine covers 73 and 7.
3 is covered. Then, the scraping tine cover 72
Rotation covers 74 that cover the front ends of the transport tines 26 and the inside of the front ends are disposed at the rear end of the transport tine 72. The transported stem is protected from being caught between the pulley 68 and the transport tines 26.

The pulleys 53, 58, 60 and 70 have a scraper 61, and the pulleys 51 and 52 have a scraper 63.
64, the scrapers 62 are provided on the tension rollers 54 and 59, and the scrapers 91 are provided on the outer tension rollers 56 and 57. It is configured to scrape off soil and mud that has adhered. The pulleys 50, 68, and 69 are also provided with scrapers.

Scrapers 61, 62, 63, 64, 91
And the like are formed in a shape corresponding to the outer peripheral surface of the pulley or the tension roller to be disposed, so that the stem, soil, mud, and the like can be reliably scraped off. For example, as shown in FIG. 7, a concave portion 60 a is formed in a substantially V shape on the outer peripheral surface of the pulley 60, and a scraper 61 fixed to the support rod and disposed on the pulley 60 includes: A convex portion 61a having the same shape as the concave portion 60a is formed, and is fitted into the concave portion 60a and brought close to the concave portion 60a. As shown in FIG. 8, a scraper 91 formed in a substantially flat plate shape is disposed close to the outer tension rollers 56 and 57 formed in a substantially cylindrical shape.
The above-mentioned scraper can be provided in sliding contact with an arranged pulley or tension roller.

In FIG. 7, the nipping and conveying belt 24
Has a flat belt-like outer surface, which is a sandwiching surface, and a convex portion 24a, which is a belt separation preventing member, is formed on the inner surface thereof. The convex portion 24a is provided with pulleys 53, 58, and 60.
70 and substantially V-shaped recesses formed on the outer peripheral surfaces of the tension rollers 54 and 59 (for example, the recess 6 in the pulley 60).
0a) to form the concave and convex portions 24a.
Are configured to mesh with each other so that the nipping / conveying belt 24 wound around the pulley and the tension roller does not easily come off. Incidentally, such a belt separation preventing member is provided by the scraping tine 27 and the transport tine 26.
Are similarly formed.

The reduction spring 75 is interposed between support rods 79 fixed to the lower ends of the left and right rotation shafts 34, as shown in FIG. 9, for example. The reduction spring 75
Is covered by protective covers 76 and 77 formed in a substantially cylindrical shape, and the protective cover 76 is slidably fitted in the protective cover 77 having a larger diameter than the protective cover 76. Pins 78, 78 penetrate the outer ends of the protective covers 76, 77 in a direction perpendicular to the axial direction, respectively. When the reduction spring 75 is extended, the pins 78, 78
It is configured to be locked at the end of the.

When the reduction spring 75 is extended, the pins 78, 78 locked at the ends of the reduction spring 75 move outward, and the protective covers 76, 77 move outward. Conversely, when the extended reduction spring 75 contracts,
The outer ends of the protective covers 76, 77 abut against the support rods 79, 79, and with the contraction of the reduction spring 75, the protective covers 76, 77
77 move inward respectively. In addition, the holding and conveying device F
Even if the reduction spring 75 is extended to the maximum by rotating the rear part, the protective cover 76 remains fitted in the protective cover 77, so that the rear part of the nipping and conveying device F is in any rotational state, The reduction spring 75 is always covered by the protective covers 76 and 77.

The protective covers 76 and 77 thus configured
Since the stalks conveyed by the sandwiching conveyance belt 24 are not entangled with the reduction springs 75, soil and mud attached to the stalks fall and do not adhere to the reduction springs 75, The reduction spring 75 can always maintain an appropriate biasing force, and the right and left sandwiching conveyance belts 24
Can be reliably urged in the direction of pinching the stem.

[0030]

As described above, the present invention has the following advantages. That is, as described in claim 1, the scraper for scraping the stems or on the belt winding surface of the rolling element for winding the belt for conveying the stems is provided with a scraper for removing the deposit on the belt winding surface. It is possible to remove stalks, soil and mud, etc. entangled with the outer peripheral surface, which is the belt winding surface, such as the pulleys and tension rollers as the rolling elements, and the belt comes off the rolling elements such as pulleys and tension rollers. Was prevented.

Further, as in claim 2, the stem is scraped.
Or, a belt to be conveyed is wound around a rolling element, and a slippage prevention member is formed on the winding surface of the belt.For example, the slippage prevention member is formed with a belt winding surface of a rolling element such as a pulley or a tension roller. As a result, the belt did not easily come off the rolling element.

Further, as in claim 3, the stem is scraped.
Alternatively, the belt that conveys the stem is divided into front and rear, and a cover body that covers the front end of the rear belt of the divided belt is provided. The front end of the rear belt can be prevented from being caught between the pulley to be wound and the rear belt, and the wound rear belt can be prevented from coming off.

[Brief description of the drawings]

FIG. 1 is an overall side view showing a traveling stem processing machine provided with a weeding guide of the present invention.

FIG. 2 is an overall plan view of the same.

FIG. 3 is a cross-sectional view showing a pivot point for pivotally supporting a stem processing mechanism.

FIG. 4 is a plan view showing a scraping device and a front portion of a nipping and conveying mechanism.

FIG. 5 is a plan view showing the rear part of the nipping and conveying mechanism.

FIG. 6 is a side view of the same.

FIG. 7 is a side sectional view showing a scraper and a nipping and conveying belt.

FIG. 8 is a side view showing another embodiment of the scraper.

FIG. 9 is a front view showing an urging spring for urging the left and right nipping and conveying belts.

[Explanation of symbols]

 A Stem Processing Mechanism B Running Mechanism C Stem Cutting Device E Engine F Nipping and Conveying Device H Handle K Rotating Center Gear Case M Transmission Case T Ridge Holding Roller Mechanism 24 Nipping and Conveying Belt 24a Convex Portion (Disengagement Prevention Member) 26 Conveying Tine 27 Scratch Tine 61 ・ 62 Scraper 74 Rotating cover

Claims (3)

[Claims] 1. A stalk processing mechanism of a traveling stalk processor for pulling out and discharging stalks while traveling, wherein the stalks are scraped or the stalks are wound on a belt winding surface of a rolling element for winding a belt for conveying the stalks. A stem processing mechanism of a traveling stem processing machine, further comprising a scraper for removing the deposit on the belt winding surface. 2. A stalk processing mechanism of a traveling stalk processor for pulling out and discharging stalks while running, wherein a belt for scraping the stalks or conveying the stalks is wound around a rolling element, and the belt is wound. A stem processing mechanism of a traveling stem processing machine, wherein a detachment preventing member is formed on a surface. 3. A stalk processing mechanism of a traveling stalk processor for pulling out and discharging stalks while traveling, wherein a belt for scraping the stalks or conveying the stalks is divided into front and rear parts, and a rear belt of the divided belts is used. A stem processing mechanism of a traveling stem processing machine, wherein a cover body covering a front end is provided.