JPH047652B2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention relates to a ridge mulching device for cultivating lettuce and Chinese cabbage, for example, which cultivates a field to form ridges, and also cultivates the ridges of a field. This invention relates to coating the surface of the ridge with a film.

(Prior Art) Conventionally, this type of ridge mulching device has been disclosed in, for example, Japanese Utility Model Application Publication No. 69955/1983 and Japanese Patent Application Laid-Open No. 1988-69955.
As described in Publication No. 145018, the field is cultivated with a tillage rotary, the tilled soil is shaped into ridges with a ridge shaping body, and the entire surface of each ridge and each furrow after this shaping is While covering with the film fed out from the film feeding mechanism, a part of the tilled soil tilled by the above-mentioned tilling rotary is carried into the carry-in section of the lifting conveyor, and the tilled soil is conveyed to the rear upper part to be temporarily covered. A structure is known in which the tilled soil is stored in the film, and this tilled soil is dropped intermittently or continuously into the grooves on the laid film, and the tilled soil is used to press down the film.

Furthermore, as described in Japanese Patent Application Laid-Open No. 53-22049, a ridge shaping body is disposed behind a tillage rotary that can freely rotate in the downcut direction, and a part of tilled soil is placed in the center of this ridge shaping body. A belt conveyor for conveying the tilled soil rearward is formed at the rear end of the passage part, and a belt conveyor for conveying the tilled soil rearward is formed at the rear end of the upper cover covering the upper part of the tilling rotary. A structure is known in which a rear cover is provided to guide soil into the passage section.

Furthermore, as described in Japanese Patent Publication No. 50-16246, a flying window is formed in the rear cover that covers the upper part of the tilling rotary to fly some of the tilled soil backward, and the tilled soil is thrown into this flying window. A structure is known in which a guide member formed in the shape of a hood made of vinyl sheet is arranged in series to allow the film to fall onto the film.

(Problems to be solved by the invention) The above-mentioned Utility Model Application Publication No. 69955/1983 and Japanese Patent Application Laid-Open No. 1987-699-
According to the structure described in Publication No. 145018, the carrying-in section of the lifting conveyor travels through the soil at the rear lower part of the tilling rotary, so its driving roller or driven roller is also rotated in the soil.
Soil may enter between this driving roller or driven roller and the belt-shaped endless rotating body suspended between these rollers, and this soil may cause the endless rotating body to slip and become uncertain. There is a problem that there is. In particular, this kind of ridge mulching work is carried out immediately after rainfall when there is a lot of moisture in order to retain sufficient moisture in the soil, so the endless rolling bodies are more likely to slip.

In addition, in order to make it easier for some of the tilled soil to be carried into the carrying-in part of the lifting conveyor, if soil is collected in the front part of the carrying-in part, the resistance will increase, and at the beginning of work on the headland, there will be a lack of soil and the ridges will be closed. There is a problem that it is difficult to shape the soil, and the soil is piled up at the end of the work. Furthermore, since the endless rotating body and the driving roller or driven roller rotate in the soil, they are easily damaged and have a large economic burden.

Furthermore, according to the structure described in Japanese Patent Application Laid-open No. 53-22049, although the conveyance section of the belt conveyor does not advance through the soil, the tilling rotary is rotatable in the downcut direction and is attached to the ridge shaping body. Since the passage section through which the soil is led out is formed with an opening, even if some of the tilled soil blown backward and upward by the tilling rotary collides with the rear cover and is led out to the passage section, it will not be led out from this passage section. Since the amount of soil is small and it is not possible to carry a sufficient amount of soil into the inlet section of the belt conveyor, and the rear cover and passage section are formed in a fixed position, the amount of soil relative to the inlet section of the belt conveyor is limited. The adjustment and setting position of the belt conveyor relative to the loading section cannot be variably adjusted, and furthermore, since the passing section is formed as an opening in the ridge forming body, there is a problem that the ridge forming body has a special and complicated dedicated structure. be.

Furthermore, according to the configuration described in Japanese Patent Publication No. 50-16246, the guide member does not lead the soil to the conveyor, but is made of a vinyl sheet, so it is not broken by the soil flying from the tilling rotary. This method is difficult to use and is not suitable for long-term use, and there is a problem in that it is not possible to adjust the amount of soil relative to the input section of the conveyor and the position of the guide member cannot be variably adjusted.

Therefore, the present invention was made in view of these points, and it is possible to carry a necessary and sufficient amount of soil into the carrying-in section of a lifting conveyor by means of a soil derivative.
The soil guide makes it possible to adjust the amount of soil relative to the loading section of the lifting conveyor and to variably adjust the setting position of the soil guide, allowing the loading section of the lifting conveyor to reliably load soil without being directly affected by tilled soil. It is an object of the present invention to provide a ridge mulching device that can rotate smoothly, prevent a lifting conveyor from slipping, and prevent obstacles from getting caught.

[Structure of the invention]

(Means for Solving the Problems) The ridge mulching device of the present invention includes a machine frame, a tilling rotary that is rotatably mounted on the machine frame and is rotatable in the upcut direction for tilling and crushing soil for ridge building. , a cover body that covers the upper part of the tilling rotary, and a cover body that is inclined upwardly so as to convey the tilled soil released from the tilling rotary rearward and upwardly, with its carrying part facing the rear part of the tilling rotary. a lifting conveyor provided between the rear part of the tilling rotary and the carrying-in part of the lifting conveyor, and carrying in the lifting conveyor as a film presser on which a part of the tilled soil released from the tilling rotary is laid; The lifting conveyor is provided with a soil guide that guides the soil to the input section of the lifting conveyor, and the lifting conveyor is arranged with its input section spaced above the ground, and the soil guide guides the soil to the input section of the lifting conveyor on the left and right sides. Guide side plates are provided facing each other, and a guide top plate is provided between the upper ends of the left and right guide side plates for guiding soil to the loading section of the lifting conveyor, and this guide top plate is connected to the cover body. The discharge outlet position of the soil derivative relative to the loading section of the lifting conveyor is supported so as to be adjustable in the vertical direction.

(Function) In the ridge mulching device of the present invention, the machine frame is connected to, for example, a tractor, and the tilling rotary of the machine frame is interlocked and connected to the power output shaft of the tractor.
The soil guide is also adjusted in position relative to the inlet of the lifting conveyor.

Next, the machine is towed by a tractor, and the tilling rotary is driven to rotate in the upcut direction by the power from the tractor, and the lifting conveyor is driven to rotate.

Then, the field is tilled and crushed for ridge formation by the tilling rotary, and a part of the tilled soil released by the tilling rotary is guided by the left and right guide side plates and the guide top plate of the soil derivative and is pressed into the film. The film is carried into the carry-in section of a lifting conveyor for use, and is then conveyed upward, and is carried out and dropped onto the laid film from this carry-out end.

(Example) Hereinafter, the configuration of an example of the present invention will be described based on the drawings.

In the figure, 1 is a main frame as a machine frame, and side frames 2, 2 as machine frames are fixed to both left and right ends of this main frame 1 facing each other, and a hitch is attached to the front ends of the opposing side frames 2, 2. The metal fittings 3, 3 are provided protrudingly, and
Support frames 4, 4 are fixed to upper portions near the rear ends of the side frames 2, 2 so as to face each other and extend horizontally rearward. Further, upper parts of a chain case 5 and a bracket (not shown) are fixed to opposite ends of the main frame 1, and a tilling rotary 6 is rotatably mounted horizontally between the chain case 5 and the lower part of the bracket. There is. The tilling rotary 6 is configured such that a plurality of spoon-shaped tilling claws 6c protrude radially from each of a plurality of flanges 6b in the axial direction of a tilling shaft 6a. The tilling rotary 6 is rotatably connected in the upcut direction via an interlocking medium 8 to a transmission 7 provided in the middle of the main frame 1, and the input shaft 9 of the transmission 7 is directed forward. It stands out.

Next, a cover body 10 covering the tilling rotary 6 is placed over the chain case 5.
and fixed to the bracket, this cover body 10
is composed of an arc-shaped top plate 11 and side plates 12 facing on both left and right sides of the arc-shaped top plate 11. In addition, soil induction bodies 13 are continuously provided near the rear ends of the left and right side plates 12 of the cover body 10. This soil derivative 1
3, approximately triangular guide side plates 14 are disposed opposite to each other on both left and right sides, and a guide top plate 15 is connected between the upper edges of the left and right guide side plates 14. A screen 16 is provided between the upper portions and located on the induction top plate 15 side. Further, arcuate long guide grooves 17 are formed opposite to each other near the upper end corners of the left and right guiding side plates 14, and the screen 16 has a support rod 18 that is horizontally suspended between the left and right guiding side plates 14. In the axial direction of this support rod 18, a large number of guide rods 20 each having a guide port 19 opened therebetween are arranged side by side in the left-right direction. The upper end corner portions of the left and right guide side plates 14 are pivotably supported in the vicinity of the rear ends of the left and right side plates 12 of the cover body 10 via a support shaft 21, and the left and right guide side plates 14 of the cover body 10 are rotatably supported in the vertical direction. A bolt 22 provided near the rear end of the side plate 12 is inserted into the guide long groove 17,
Therefore, the soil guide body 13 supported so as to be vertically rotatable around the support shaft 21 is fixed at the set position by tightening the nut 23 to the bolt 22 inserted into the long guide groove 17. ing. The guide top plate 15 of this soil induction body 13 has a front end that is substantially continuous with the rear end of the arc-shaped top plate 12 of the cover body 10, and this guide top plate 1
5 and the left and right guide side plates 14 cover the rear upper part of the tilling rotary 6.

Next, the opposing support frames 4, 4
A connecting frame 24 is fixed to the
Suspension support rods 2 are attached to the lower parts of both sides of this connection frame 24.
5 and 25 are protruded from each other, and a support frame 26 is horizontally suspended between the lower ends of the opposing suspension support rods 25 and 25. A plurality of ridge forming bodies 27 for forming and shaping the ridges are attached so as to be adjustable in position, and grounding bodies, that is, sled bodies are installed at positions corresponding to the ridge shaping parts on the outer side of the ridge forming bodies 27 located on both sides. 28 is attached so that its position can be freely adjusted in the vertical direction, and the base end of the beam 31 of the earth collecting body 30 is pivotably supported in a vertically rotatable manner on a mounting frame 29 that projects from the rear end of each sled body 28. The sled body 2 is attached to the tip of each soil collection body 30.
Tip 3 that protrudes downward from position 8 and excavates the soil
2 is attached, and this earth collecting body 30 is always supported upwardly by a coil spring 33.

Further, a plurality of support arms 35 are extended horizontally and substantially parallel to each other through a mounting frame 34 at the upper rear end of the connection frame 24, and are connected between the rear portions of the opposing support arms 35. A front arm 37 and a rear arm 38 are vertically disposed at the front and rear of the horizontal support rod 36 in a parallel manner and are adjustable in position. Further, a film feeding mechanism 39 is connected to the lower end of the front arm 37, and the film feeding mechanism 39 has a film feeding shaft 41 rotatably supported horizontally on a support frame 40 having a substantially U-shape. A roll body 43 of a film 42 is supported on a shaft 41 so as to be freely fed out. Further, a horizontal rod 44 is connected to the lower end of the rear arm 38, and a plurality of horizontal rods 44 roll in each ridge groove b of each ridge a formed by the ridge forming body 27 in the length direction of the horizontal rod 44. A plurality of presser rings 45 are rotatably mounted on an axis, and the plurality of presser rings 45 are connected to a support rod 46 and a coil spring 47.
It is supported by the horizontal rod 44 via the horizontal rod 44 so as to be vertically movable.

Further, a lifting conveyor 48 is provided between the opposing suspension support rods 25 and between the opposing support arms 35.
is slanted upward at the rear and fixed. This lifting conveyor 48 is connected to an opposing conveyor frame 49.
The front end of the opposing conveyor frame 49 is arranged to face the discharge port 50 of the soil inducer 13 at the rear of the tilling rotary 6, and a driven roller 51 is rotated between the front ends. A drive roller 52 is mounted on a shaft so as to be movable, and a drive roller 52 is connected to a drive shaft 5 between the rear ends of the opposing conveyor frames 49.
3, and a locking protrusion 5 is provided between the drive roller 52 and the driven roller 51.
A large number of endless rotating bodies 55 protruding from each other at predetermined intervals are suspended so as to be freely rotating. The carry-in section A including the driven roller 51 of the lifting conveyor 48 is spaced above the ground and has a predetermined height above the ground so as not to move through the soil. A cover body 56 is attached to the rear end of the conveyor frame 49, and the discharge port 57 is opened at the rear of the cover body 56.
The upper end portions of opposing side plates 60 of a dirt reservoir shutter 59 having a U-shape in plan view and having a bottom plate 58 for opening and closing 7 are pivotally connected to be vertically rotatable via a support shaft 61. The drive shaft 53 of the lifting conveyor 48 and the cover body 56 are rotatably connected via a plurality of links 62 and a coil spring 63, and are moved up and down once per rotation of the drive shaft 53. The bottom plate 58 opens and closes the discharge port 57 of the cover body 56 while being rotated intermittently in the direction.

Furthermore, one end of a wire-shaped cable 64 is connected to the lower part of the side plate 60 of the earth dumping shutter 59, and the other end of each cable 64 is connected to the mounting frame of each of the earth collecting bodies 30. It is attached to 29. Each of the cables 64 is moved forward and backward by the operation of the soil flow shutter 59, and each soil collecting body 30 connected thereto is intermittently rotated in the vertical direction. Each soil collection 30
The rotation thereof is arranged to be substantially synchronized with the rotation of the soil dumping shutter 59.

Furthermore, a plurality of branch chutes 65 are disposed at the discharge port 57 of the cover body 56 via the soil dumping shutter 59, and these branch chutes 65 are connected to the support arm 3.
The plurality of branch chutes 65 have their inlet portions 66 close to each other and open facing the lower portion of the dirt dumper shutter 59, and the lower side of the inlet portion 66 is It gradually expands outward and is inclined, and each of the unloading parts 67 at the lower end thereof is opened so as to face upward and rearward of each presser ring 45 . The drive shaft 53 of the lifting conveyor 48 is interlocked with the input shaft 9 via interlocking media 68 and 69.

Next, the operation of the above configuration will be explained.

The hitch fittings 3, 3 are connected to the connecting suspension mechanism of the tractor, and the input shaft 9 of the transmission 7 is connected to the output shaft of the tractor via a power transmission shaft. It also operates the hydraulic position of the tractor,
The tilling depth of the tilling rotary 6 is adjusted and set by raising and lowering the connecting suspension mechanism.

Also, loosen the nuts 23 on the bolts 22 on both sides of the soil derivative 13, adjust the vertical movement of the soil derivative 13 around the support shaft 21, and then tighten the nuts 23 on the bolts 22 on both sides again at the set position. The soil guide 13 is positioned in accordance with the working conditions with respect to the tilling rotary 6 and the carrying-in portion A of the lifting conveyor 48.

Next, as the machine is towed by a tractor, the input shaft 9 is rotated via the power transmission shaft by the rotation of the output shaft of the tractor, and the lifting conveyor 48 connected to the input shaft 9 is rotated endlessly. The rowing body 55 and the tilling rotary 6 are driven.

Then, as the tilling rotary 6 rotates in the upcut direction, the field is tilled and crushed, and this tilled soil is guided by the arc-shaped top plate 11 and left and right side plates 12 of the cover body 10, and is guided and discharged to the soil induction body 13. The lumps are guided to fall into the tilled soil by each guiding rod 20 of the screen 16 to the rear lower part of the tilling rotary 6, and all or all of the tilled soil smaller than the size of the guiding opening 19 between the guiding rods 20 is removed. A portion is guided through the respective guide ports 19 by the guide top plate 15 and the left and right guide side plates 14, and is released into the carry-in section A of the rear lifting conveyor 48. The tilled soil guided downward by each guiding rod 20 of the screen 16 is successively shaped into ridges by each shaping section of each ridge shaping body 27 that is towed and advanced. The surface of each ridge a and the top of the ridge b are sequentially covered with the film 42 fed out from the roll body 43 of the film feeding mechanism 39, and the film 42 in the ridge b is covered with the presser ring 4.
5.

In addition, a portion of the cultivated soil thrown backward from each guide port 19 of the screen 16 as described above is sequentially carried into the carrying-in section A of the lifting conveyor 48 and is locked by each of the locking protrusions 54. While being conveyed rearward and upward, the soil is sequentially conveyed from the discharge end onto the bottom plate 58 of the soil dumping shutter 59, where it is temporarily stored and deposited.

In this case, the carrying-in section A of the lifting conveyor 48 has a predetermined height above the ground and is located at the rear upper part of the discharge port 50 of the soil induction body 13, so that the carrying-in section A of the lifting conveyor 48 can be endlessly circulated. The carrying-in part A of the body 55 does not move around in the soil, so the endless moving body 55 moves smoothly without slipping, does not roll up obstacles in the soil, and has no resistance. Therefore, the overall weight of the lifting conveyor 48 can be reduced and its durability can be improved.

Further, by the rotation of the drive shaft 53 of the lifting conveyor 48, the soil dumper shutter 59 connected via a plurality of links 62 and a coil spring 63 is moved vertically intermittently at regular intervals around the support shaft 61. The cultivated soil temporarily stored and deposited on the bottom plate 58 is sequentially and intermittently divided into the branch chute 6.
The tilled soil dropped into each of the carry-in sections 66 of 5 and onto this branch chute 65 is transferred from each carry-out section 67 onto the film 42 of the furrow b, which is held down by the presser ring 45, into one relatively large piece. A film 42 is sequentially dropped as a lump c, and a film 42 is formed by the lump c.
is held down.

〔Effect of the invention〕

According to the present invention, a soil guide is provided between the rear part of the tilling rotary and the carrying-in part of the lifting conveyor, and the soil guide is arranged between the left and right opposing guide side plates and the upper ends of the left and right guide side plates. Since it is formed by providing a guide top plate connected to the rear end of the cover body that covers the upper part, this soil guide, in conjunction with the rotation of the tilling rotary in the upcut direction, will move the soil required for the loading section of the lifting conveyor. Moreover, a sufficient amount of soil can be carried in reliably, and it can be used for a long period of time without being torn like a vinyl sheet by the soil thrown out from the tilling rotary. In addition, since this soil derivative is supported so that its position can be adjusted in the vertical direction, it is possible to easily adjust the amount of soil relative to the loading section of the lifting conveyor and the set position of the soil derivative as necessary. can. Furthermore, since the inlet section of the lifting conveyor through which soil is carried in from this soil derivative is placed above the ground, the inlet section of the lifting conveyor is not directly affected by the tilled soil, and the endless rotating body can be moved. It is possible to provide a ridge mulch device that can reliably rotate and prevent slips and obstacles from being bitten.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a side view of a ridge mulching device, and Fig. 2 is a partially cutaway perspective view of the same soil derivative. 1, 2... Machine frame, 6... Tilling rotary, 10...
...cover body, 13...soil derivative, 14...guiding side plate, 15...guiding top plate, 48...lifting conveyor, 50...discharging port, A...carrying in section.

Claims (1)

[Scope of Claims] 1. A machine frame, a tillage rotary rotatably mounted on the machine frame and rotatable in the upcut direction for tilling and crushing soil for ridge-building, and a cover body covering the upper part of the tillage rotary. , a lifting conveyor whose carrying part faces the rear part of the tilling rotary and is inclined upwardly at the rear for conveying the tilled soil released from the tilling rotary rearward; and the rear part of the tilling rotary. A soil derivative is provided between the carrying-in part of the lifting conveyor and guiding a part of the tilled soil released from the tilling rotary to the carrying-in part of the lifting conveyor as a holding film, and The lifting conveyor is arranged with its loading section spaced above the ground, and the soil guide is provided with guide side plates facing each other on the left and right sides to guide soil to the loading section of the lifting conveyor. A guide top plate is provided between the upper ends of the guide side plates to guide soil to the input section of the lifting conveyor, and this guide top plate is connected to the cover body, and the discharge port position of the soil derivative relative to the input section of the lift conveyor is provided. A ridge mulch device characterized by supporting a vertically adjustable position.