JPH0438645Y2 - - Google Patents

Description

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

(Prior Art) Conventionally, a desk rotary in which a plurality of desks are arranged side by side has been known as an agricultural machine for plowing and turning a field.

This desk rotary, for example, has a tilling shaft horizontally mounted on the machine frame, and a plurality of desks that continuously till and turn the soil in the axial direction of this tilling shaft are installed in parallel, and then the tilling 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 tilling shaft, and the soil is continuously tilled and turned over by each desk as a predetermined soil.

(Problems to be solved by the invention) In the above-mentioned conventional structure, for example, when plowing a field after harvesting rice, contaminants such as herbal medicines are often scattered. This becomes a hindrance to the tilling and reversing work and prevents each desk from being inserted into the soil, making it impossible to obtain the desired plowing depth and causing problems such as the overall stability of the desk tiller being lacking.

Therefore, this invention was made in view of the above points,
Contaminants that exist just before the ground contact part of each desk are removed in advance to ensure that each desk is inserted into the soil well and to obtain the specified plowing depth, and the desk tilling body is It is an object of the present invention to provide a rotary tiller that can improve overall stability.

[Structure of the idea]

(Means for Solving the Problems) The rotary tillage device of the present invention includes a machine frame, and a plurality of rotary tillers rotatably installed in the machine frame and arranged in parallel at intervals to continuously till and turn the soil. a desk cultivating body consisting of desks; and an expulsion unit that is provided for each desk of the desk cultivating body so as to be swingable in the front and rear directions and removes foreign matter forwardly in advance of the ground contact portion of each desk. an excluder having
The apparatus includes a swinging means for swinging each of the exclusion bodies in the front-back direction.

In addition, the eliminating body provided on each desk of the desk cultivating body is supported by the machine frame so as to be swingable in the front and rear directions, and its lower side hangs down facing the side surface of each desk, and the lower end of the eliminating body is The expulsion action section is placed in front of the ground contact section of each desk with a predetermined gap therebetween.

(Function) The rotary cultivating body of the present invention tows the machine, rotates the desk cultivating body, and swings each of the displacing bodies by the swinging means, so that each desk of the displacing body is rotated. Each of the exclusion action parts preceding the ground contact part of is swung back and forth,
Each of the removal action parts removes foreign matter forward from each desk just before it travels, and a space is momentarily created where no foreign matter exists between each of the removal action parts and the ground contact part of each desk. Therefore, each desk can be easily inserted into the soil without impeding its rotation due to foreign matter, and the plowing and reversing work can be continuously performed at a predetermined plowing depth.

(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

In the figure, 1 is 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, which are arranged opposite to each other, are integrally attached to the left and right parts of the machine frame 1, and between the lower ends of the chain case 4 and the bracket 5 on the left and right parts, A desk cultivating body 6 is rotatably suspended horizontally. This desk tilling body 6 has a tilling shaft 7, and a plurality of desks 8 are integrally arranged in parallel at intervals in the axial direction of the tilling shaft 7 to continuously till and turn the soil. A plurality of protrusions 9 as rocking means are protruded from the tilling shaft 7 on the outer side of the mounting portion of the desk 8. Both ends of the tilling shaft 7 are rotatably supported by the chain case 4 and the bracket 5 via bearing bodies 10, respectively, and the projecting end protruding into the chain case 4 at one end is connected to the chain case 4. The output shaft of the transmission 3 is interlocked with the output shaft of the transmission 3 through an interlocking medium such as a chain in the transmission section 4.

Next, one end of a connecting arm 11 bent into a generally dogleg shape is fixed to the rear upper part of the chain case 4, and this connecting arm 11 is connected to the desk 8a at one end of the desk cultivating body 6. It extends further to the rear. 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 the height position can be adjusted.
5 is rotatably mounted on an axis. This stable wheel 15
This is a device that runs while controlling the depth of the soil that has been turned over by the desk 8a at one end, and has a large diameter on its outer periphery that is buried in the soil to prevent lateral vibration. A regulating ring 16 is integrally formed.

Furthermore, support frames 17 as machine frames are provided on the left and right sides of the machine frame 1 and protrude rearward in parallel to each other. A stopper rod 1 is placed oppositely on the outside of each desk 8 of this support rod 18.
9 is provided integrally protruding toward the rear. Also, at the position of each stopper rod 19, the support rod 1
The connecting fittings 21 of the ejector 20 are rotatably fitted into the connecting fittings 8, and a guide long groove 22 from which the stopper rod 19 projects is formed in an arc shape approximately in the middle of each connecting fitting 21. Stopper rod 1
It is formed with a groove width larger than the cross-sectional shape of 9.
Each of the above-mentioned exclusion bodies 20 is formed of a plate-like material in a substantially arc shape, and an engagement surface 23 is formed in the vertical direction on the rear edge of each of them, with which each of the protrusions 9 of the tilling shaft 7 engages and disengages, In addition, the inner surfaces of each desk 8 are suspended in close proximity to and opposite to the outer surface of each desk 8, and an elimination action portion 24 for eliminating contaminants a such as crude drugs is formed at the tip of each of the desks 8. Each of these eliminating action parts 24 is connected to each desk 8.
Each desk 8 is sequentially grounded by the rotation of the
A predetermined gap e is formed between each of the exclusion action parts 24 and each of the ground contact parts 8b of each desk 8. . Also, the locking portion 25 on the upper part of each of the above-mentioned exclusion bodies 20 and each of the above-mentioned stopper rods 1
Coil springs 26 as swinging means are stretched between the protrusions 9 and 9, and the coil springs 26 bias the respective ejecting bodies 20 so that the engaging surfaces 23 thereof constantly rotate. It is adapted to engage with the circumferential side portion 7a of the tilling shaft 7 between the protrusions 9.

Next, lower arms 27 are attached to the left and right sides of the machine frame 1.
A top arm 28 is provided on the upper part of the mission 3 to project forward, and the top arm 28 and the left and right lower arms 27 are connected by a stay 29.

Reference numeral 30 denotes a connecting frame, and one end of a first adjusting rod 31 whose length can be freely adjusted by extension and contraction is rotatably connected to the middle upper part of the connecting frame 30. The end portion is rotatably connected to the top arm 28. Further, one end of a connecting rod 32 is rotatably connected to one end of the connecting frame 30, and the other end of the connecting rod 32 is rotatably connected to a lower pin 33 of one of the lower arms 27. There is. Further, one end of a second adjusting rod 34 whose length can be freely adjusted is rotatably connected to the other end of the connecting frame 30. It is rotatably connected to the lower pin 35 of the other lower arm 27. Then, the first and second adjustment levers 31 and 34 are set to move forward and backward with the connecting lever 32 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 30. 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 to facilitate tilling and reversing the soil.

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

A connecting frame 30 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 31 and 34 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 rotationally interlocked by the power input from the tractor, the desk cultivating body 6, which is interlocked and connected to this via the transmission 3, is rotationally driven. The soil in the field is continuously plowed and turned by each desk 8 over a predetermined width.

Further, in the above case, as the desk tiller 6 rotates, the plurality of protrusions 9 protruding from the tiller shaft 7 intermittently move the engagement surface 23 of the displacing body 20 in the front-rear direction against the coil spring 26. By pushing, each of the eliminating bodies 20 is swung back and forth, and each of the eliminating units 24 of each of these eliminating bodies 20 is swung back and forth in advance of the ground contact portion 8b of each desk 8. By the operation of each of these removal action parts 24, contaminants a such as herbal medicines are removed forward in advance from each desk 8 just before it runs.
A space is momentarily created between the desks 8 and 8 where contaminants a such as crude drugs do not exist, and therefore each desk 8 can be easily inserted into the soil without being hindered by contaminants a. Plowing reversal work is performed at a predetermined plowing depth.

In addition, at this time, contaminants such as crude drugs 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 is turned over. The soil is forcibly turned over on top of the foreign matter a, and the foreign matter a is reliably buried beneath it.

[Effect of idea]

According to the present invention, each desk of the desk cultivating body is provided with a displacing body having a displacing action part that precedes the ground contacting part of each desk so as to be swingable in the front and rear directions, so that the ground contact of each desk is prevented. Contaminants such as crude drugs that are present immediately before the ground contact part of each desk can be reliably removed in advance by the front-to-back rocking motion of each removal action part of the removal body that precedes the part. Therefore, the penetration of each desk into the soil is good, and since the penetration of each desk into the soil is not obstructed by foreign matter, each desk ensures that the specified plowing depth is maintained. The soil can be turned over tilling, and the overall stability of the desk tiller can be ensured. In addition, since each of the eliminating parts of the eliminating body is swingable in the front and back directions,
Contaminants can be prevented from being wrapped around or deposited on the removal action section. Therefore, it is possible to provide a rotary tiller comprising a plurality of desks with excellent workability.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a plan view of the rotary tiller, Fig. 2 is a side view taken from the direction of arrow A above, and Fig. 3 is a sectional view taken along line B-B of the above. FIG. 4 is a partial perspective view showing the operating mechanism of the excluder. 1, 17...Machine frame, 6...Desk cultivating body, 7...
...Plowing axis, 8...Desk, 8b...Ground surface contact part,
9... Protrusion as a driving means, 20... Excluder,
24...Exclusion action section, 26...Coil spring as a driving means, a...Contaminants.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A desk cultivating body consisting of a machine frame and a plurality of desks rotatably mounted on the machine frame and arranged in parallel at intervals for continuously tilling and turning the soil. and a removing body which is provided to be swingable in the front and back directions for each desk of this desk cultivating body and has an exclusion action part that removes foreign matter forward in advance of the ground contact part of each desk, and this A rotary tiller comprising: a swinging means for swinging each of the removing bodies in the front-back direction. (2) The displacing body provided on each desk of the desk cultivating body is supported by the machine frame so as to be swingable in the longitudinal direction, and its lower side hangs down facing the side surface of each desk, and its lower end 2. The rotary tillage device according to claim 1, wherein the removing action portion of the desk is placed in front of the ground contact portion of each desk with a predetermined gap therebetween.