JPH0310802Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rotary tillage device, which continuously plows and turns over a field using a plurality of desks.

[Conventional technology]

2. Description of the Related Art Conventionally, a desk rotary in which a plurality of desks are arranged side by side has been known as an agricultural machine for tilling and turning a field.

This desk rotary, for example, has a rotating shaft horizontally mounted on the machine frame, and a plurality of desks that continuously plow and turn the soil in the axial direction of this rotating shaft are mounted in parallel, and the rotating shaft is rotated on its own axis. Or it has a structure that drives it.

Each of the desks is rotated by the rotation of the rotating shaft, and the soil is continuously plowed and turned over as a constant level of soil by each of the desks.

[Problem that the invention attempts to solve]

In the above-mentioned conventional structure, one end of the soil after inversion, that is, the trail of the desk at one end, becomes the wheel running path for the towing vehicle during the next journey, so the soil is not sufficiently reversed in the previous stage. = There is a problem that if soil blocks the wheel running path, it will cause a running obstacle during the next stroke.

In addition, if the soil inversion in each row is insufficient, there is a problem that foreign matter (coarse organic matter) such as raw straw scattered on the ground surface cannot be sufficiently buried.

Therefore, this invention was made in view of the above points,
Plowing of the sides that will form the track of the wheels during the next step: Forcibly presses the soil in the direction of reversal, and ensures that the soil and the soil in each adjacent row can be turned over in sequence. At the same time, it is an object of the present invention to provide a rotary tiller that can reliably embed foreign matter.

[Means for solving problems]

In this invention, a rotatable desk cultivating body consisting of a plurality of desks arranged in parallel at intervals for continuously tilling and reversing the soil is provided on the machine frame, and one end of the desk tilling body is attached to the rear part of the desk tilling body. Plowing is reversed by the desk at one end = A stable wheel that runs on the soil reversal track is rotatably arranged, and the tilling is reversed by the desk at one end on the inside of this stable wheel. This is characterized by an integrally protruding pressing body that presses the soil in the reversal direction.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a machine frame, and a transmission 3 having an input shaft 2 is provided in the middle of the machine frame 1. Further, the upper ends of a chain case 4 and a bracket 5 are integrally attached to both ends of the machine frame 1, and a desk cultivating body 6 is rotatably suspended between the lower ends of the chain case 4 and the bracket 5. There is. This desk tilling body 6 has a tilling shaft 7, and is constructed by integrally mounting a plurality of desks 8 in parallel at intervals for continuously tilling and reversing the soil in the axial direction of the tilling shaft 7. ing. Both ends of the tilling shaft 7 are rotatably supported by the chain case 4 and the bracket 5 via a bearing body 9, and the projecting end protruding into the chain case 4 at one end is supported by the chain case 4 and the bracket 5.
It is interlocked and connected to the output shaft of the mission 3 via an interlocking medium such as an inner chain.

Next, a connecting plate 10 is projected rearward from one end of the machine frame 1, and one end of a connecting arm 11 bent into a substantially doglegged shape is fixed to this connecting plate 10. extends rearward from the desk 8a at one end of the desk cultivating body 6. Further, the upper end of a support arm 12 is connected to the rear end of the connecting arm 11 with a bolt/nut 13 so that its height can be adjusted, and a stabilizing wheel 15 is connected to the lower end of this support arm 12 via an axle 14. It is mounted on a shaft for free movement. This stabilizing wheel 15 runs while regulating the depth of the soil that has been turned over after plowing by the desk 8a at one end, and its outer periphery is embedded in the soil to prevent lateral vibration. A large-diameter restriction ring 16 for preventing this is fixed integrally. Further, a conical pressing body 17 is integrally formed inside the stabilizing wheel 15 to press the soil a which is being plowed and reversed by the desk 8a at one end in the reversing direction. The end face 18 and the conical outer peripheral surface 19 press the soil a to force and promote the reversal of the soil a in the reversal direction.

Furthermore, lower arms 20 are provided on both sides of the machine frame 1 to project forward, and a top arm 21 is provided on the top of the transmission 3 to project forward, and a stay 22 is provided between the top arm 21 and the lower arm 20. are connected.

Reference numeral 23 denotes a connecting frame, and one end of a first adjusting rod 24 whose length can be freely adjusted by extension and contraction is rotatably connected to the middle upper part of the connecting frame 23. The other end of 24 is rotatably connected to the top arm 21. Further, one end of a connecting rod 25 is rotatably connected to one end of the connecting frame 23, and the other end of the connecting rod 25 is rotatably connected to the lower pin 26 of one of the lower arms 20. has been done. Furthermore, one end of a second adjusting rod 27 whose length can be freely adjusted is rotatably connected to the other end of the connecting frame 23. The other end is rotatably connected to the lower pin 28 of the other lower arm 20. Then, the first and second adjustment levers 24 and 27 are set to move forward and backward with the connecting lever 25 as the center, and the machine frame 1 is tilted to one side at a predetermined angle of inclination with respect to the connecting frame 23. In addition to being connected, each desk 8 of the desk cultivating body 6 provided on the machine frame 1 is set to be inclined at a predetermined inclination angle that facilitates tilling and reversing the soil a.

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

A connecting frame 23 is connected to the suspension mechanism of the tractor, and the input shaft 2 of the transmission 3 is connected to the output shaft portion of the tractor via a universal joint.

In addition, the first and second adjustment levers 24 and 27 are expanded and contracted to set the inclination angle of each desk 8 of the desk cultivating body 6.

Next, when the machine is towed by a tractor and the input shaft 2 is rotated in conjunction with the power input from the tractor, the desk cultivating body 6, which is interlocked and connected to this through the transmission 3, is rotationally driven. , the field is continuously plowed and inverted over a predetermined width by each of the desks 8, and the tillage is inverted by the desk 8a at one end of the field (soil a).
is forced in the reversal direction by the pressing action of the pressing body 17 protruding from the inner side of the rotating stabilizing wheel 15, and is forcibly reversed. In addition, the soil a directly pressed by this pressing body 17 also presses the soil a adjacent to it and is forced in the reversal direction and is forcibly reversed, so that each adjacent row The soil a is sequentially pressed and forcibly reversed in an orderly direction.

In addition, at this time, foreign substances such as raw straw scattered in the field are gradually moved in the reversal direction as the soil is tilled and lifted by each desk 8, and are quickly dropped to the bottom as the soil a is turned over. Then, the soil a is forcibly turned over on top of the foreign matter, ensuring that the foreign matter is buried beneath it. As a result, the wheel running path for the tractor during the next stroke is reliably opened, and since the soil a does not fall down and block it, there will be no running obstruction during the next stroke.

[Effect of idea]

According to the present invention, the soil that is tilled and reversed by the desk at one end of the desk tiller is reliably reversed in the reversal direction by the forced pressing action of the pressing member protruding from the inside of the stabilizing wheel. It is possible to remove the soil that may cause trouble to the wheels of the towing vehicle during the next journey, and at the same time, the soil at one end of the soil can be forcibly pressed and reversed in each row adjacent to it. 〓The soil can be successively pressed in the reversing direction to ensure that it is turned over in a chain, and scattered foreign matter can be reliably buried under the turned soil. It is possible to provide a rotary tiller using a plurality of desks, which can travel stably by regulating the depth of the body and preventing lateral vibration, and has good workability.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Fig. 1 is a plan view of the rotary tiller, Fig. 2 is a side view from the direction of arrow A in the same figure, and Fig. 3 is an explanation of the operation from the direction of arrow B in Fig. 1. It is a diagram. 1... Machine frame, 6... Desk tilling body, 7... Tilling shaft, 8... Desk, 15... Stabilizing wheel, 17... Pressing body.

Claims (1)

[Scope of utility model registration request] A machine frame, a desk cultivating body consisting of a plurality of desks rotatably mounted on the machine frame and arranged in parallel at intervals for continuously tilling and turning the soil; Plowing and reversing are carried out by the desk at the one end which is arranged rotatably. There is a stable wheel that runs on the soil turning track, and the desk at the one end which is protruding from the inside of this stable wheel plows the soil. It is turned upside down〓
A rotary tillage device characterized by comprising a pressing body that presses soil in a reverse direction.