JP2003265003A - Farm implement equipped with plurality of operating unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To arrange a plurality of operating units at intervals on a body frame extending in the horizontal direction perpendicularly with the advancing direction of a machine body and install a stand on the operating unit. <P>SOLUTION: The farm implement 1 is arranged with a plurality of operating units 3 at intervals on the body frame 2 extending in the horizontal direction perpendicularly with the advancing direction of the machine body. In the farm implement 1, (1) the stand 17 is installed on left and right side ends 3R and 3L of the operating units and (2) operating units 3R and 3L are supported by the body frame 2 so as to be slidable to left and right and (3) an operation depth adjusting apparatus 16 for adjusting whole operating depth of these operating units 3 is installed in at least one place of a plurality of operating units 3R and 3L and (4) the stand 17 and the operation depth adjusting apparatus 16 are installed in left and right both side ends 3R and 3L of the operating units 3 and (5) the stand 17 is equipped with casters 18 independently moving the farm implement 1. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural work machine in which a plurality of work units are slidably arranged at intervals with respect to a main body frame extending in a horizontal direction orthogonal to the traveling direction of the machine body.

[0002]

2. Description of the Related Art Conventionally, a body frame, which is detachably mounted on a rear portion of a tractor via a three-point link hitch and extends horizontally in a direction orthogonal to a traveling direction of a machine body, is rotationally driven by receiving power from the tractor. 2. Description of the Related Art There is a well-known agricultural working machine in which a plurality of working units such as a tilling rotor are arranged at a predetermined interval to carry out tilling work between the ridges of a row of crops.
It is also known that the intervals between a plurality of work units can be adjusted by sliding the work units with respect to the main body frame.

In the above-mentioned conventional agricultural working machine, a stand for holding the agricultural working machine in a predetermined posture when the agricultural working machine is attached to or detached from a tractor or is stored in a warehouse or the like,
It is provided so that it can be attached to and detached from the agricultural work machine. This stand is usually provided at both left and right ends of the body frame. Further, a work depth adjusting device (cage wheel or sled body) for adjusting the work depth of the working portion is provided at the front part of the main body frame.

[0004]

Since the working depth adjusting device is provided at both left and right ends of the main body frame, the left and right width of the entire agricultural working machine is widened, so that the working working machine can be stored in a warehouse or mounted on a tractor. It was inconvenient when moving around.
Further, it is not preferable in terms of machine body balance if the working depth adjusting device is provided in the front part of the main body frame. Further, when the agricultural work machine equipped with the stand is disconnected from the tractor, a moving means for moving the agricultural work machine is required.

The present invention has been made for the purpose of solving the above-mentioned problems, and the stand does not widen the lateral width of the machine body, and the working depth adjusting device does not disturb the machine body balance. It is an object of the present invention to provide an agricultural work machine including a plurality of work units that facilitates the movement of the machine alone.

[0006]

In order to achieve the above object, the present invention is characterized by having the following configurations (claims 1 to 5). A. In a farm work machine in which a plurality of work units are arranged at intervals with respect to a main body frame extending in the horizontal direction orthogonal to the traveling direction of the machine body, stands are provided at left and right end portions of the work units.

B. Each of the above work units is supported so as to be slidable from side to side with respect to the main body frame. C. A work depth adjusting device for adjusting the work depth of the entire work unit is provided at at least one location of the plurality of work units. D. A stand and a working depth adjusting device were provided on the left and right ends of the working unit. E. The stand is provided with a caster on which the farm work machine can be moved alone.

[0008]

The agricultural working machine having a plurality of working units according to the present invention having the above-described structure has the following functions. a. By installing a stand on the left and right ends of the work unit, when moving the left and right work units, the stand does not move together and the width of the work machine as a whole does not become wider, and the weight balance of the machine body Well, storage in warehouses,
Convenient for mounting on a tractor and traveling.

B. Each work unit is supported slidably to the left and right with respect to the main body frame, so that the work unit slides left and right while the stand is attached, the stand is located inside the main body frame, and the machine width is reduced. Can be made smaller. c. By providing the working depth adjusting device for adjusting the working depth of the entire working unit at least at one location of the plurality of working units, the working depth adjusting device moves together with the working unit, and the weight balance of the machine body is not lost. d. By installing a stand and a working depth adjusting device on the left and right end parts of the working unit, the stand and working depth adjusting device move as the working unit moves left and right,
The lateral width of the machine body does not become wide, and the weight balance of the machine body becomes good. e. The stand is equipped with casters that allow the agricultural work machine to move independently, so that the stand can be easily moved by the casters with the agricultural work machine removed from the tractor.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. 1 to 3, reference numeral 1 denotes a rotary tiller (agricultural working machine), and the rotary tiller 1 is a main body frame 2 made of a hollow pipe having a substantially square cross section that extends in a horizontal direction orthogonal to the traveling direction of the machine body. In contrast, three work units 3C, 3L, 3R
Work (cultivation) units 3 provided with are arranged at a predetermined interval, of which the central working unit 3C is attached at the central position in the longitudinal direction of the main body frame 2,
The right side working unit 3R and the left side working unit 3L have fixing / unfixing bolts 4a and are fitted and inserted on the outside of the main body frame 2 to be attached to the sliding / fixing metal fittings 4 having a substantially square cross section which can be slid / fixed. Has been. Therefore, the distance between the right working unit 3R and the left working unit 3L can be adjusted by sliding the right and left along the main body frame 2 with the central working unit 3C.

A top mast 5 connected to the top link of a tractor (not shown) and a pair of lower link connection parts connected to the lower links of the tractor on both sides of the top mast 5 from the central portion in the longitudinal direction of the body frame 2 toward the front side. And 6 are provided. A gear box 7 is provided on the rear side of the body frame 2.
The outer transmission shaft 8 extends along the main body frame 2 from the gear box 7 to the left and right sides, one of which is the transmission / support case 10 of the central working unit 3C.
Power is transmitted through the base end of the. Outer transmission shaft 8
Has a hexagonal cross section and a hollow shape.
The square inner transmission shafts 9 are slidably inserted in the axial direction, and the tips of both the inner transmission shafts 9 are located at the right working unit 3
It is fitted to the base end portions of the transmission and support case 10 of the R and left side working unit 3L. The outer peripheries of the outer transmission shaft 8 and the inner transmission shaft 9 are covered by a transmission shaft cover 11 so that they can expand and contract. Two input parts 7 from the gear box 7 to the front side
a and 7b are installed in parallel, and the PTO of the tractor is installed in either of them.
Power is transmitted from the shaft.

The base end portion of the transmission and support case 10 of the central working unit 3C is supported so as to be rotatable forward and backward with respect to the main body frame 2 about the transmission shaft center 10a, and the right working unit 3R and the left working unit are also supported. The base end portion of the 3L transmission / support case 10 is supported by the sliding / fixing metal fitting 4 so as to be rotatable back and forth about the transmission shaft center 10a. In the central working unit 3C, between the bracket 2a protruding rearward from the main body frame 2 and the transmission / support case 10, and in the right working unit 3R and the left working unit 3L, sliding / fixing metal fittings are provided. Bracket 4b projecting rearward from 4 and transmission and support case 1
A compression rod 12 is interposed between each of them and 0. And each work unit 3C, 3R, 3L
Even if there is unevenness in the field during the work, the spring action of the compression rod 12 follows the unevenness.

At the outer end of the sliding / fixing metal fitting 4, a supporting member 13 is vertically provided so as to extend downward.
The gauge wheel holder 14 and the stand holder 15 are attached. The stand holder 15 projects laterally from the gauge wheel holder 14, but the right working unit 3
It is located inside the lateral width of R and the left working unit 3L. Then, the gauge wheel holder 14 supports a gauge wheel 16 which is a device for adjusting the working depth of each of the working units 3C, 3R, 3L by using a vertical movement grip 16a so as to be vertically adjustable. A stand 17 is detachably supported by the stand holder 15, and the front and rear casters 18 are provided on the stand 17. Then, with the stand 17 supported by the stand holder 15, the rotary tiller 1 is attached to and detached from the tractor almost automatically. In addition, the rotary tiller 1 is a caster 1
8 to move it alone and store it in a warehouse, or to load and unload it on a carrier via a scaffolding board.

The transmission / support case 10 of each of the work units 3C, 3R, 3L has a chain transmission system provided therein, and as shown in FIG.
Since the plow rotor is attached to the lower end portion thereof, the sliding / fixing metal fitting 4 and the main body frame 2 supporting the working units 3C, 3R, 3L are subjected to a clockwise turning load in FIG. To alleviate this load, a support frame 19 is arranged along the body frame 2 and abuts the lower edges of the brackets 2a and 4b. Drive shafts 20 are provided on the left and right sides of the lower end of the transmission / support case 10, and circular pawl mounting flanges 21 are fixedly mounted on the drive shaft 20.
Six plow pawls 22 are attached to the pawl mounting flange 21 at equal intervals in the radial direction to form a plow rotor.
Further, a residual tillage treatment blade 23 is attached to the front side of the lower end portion of the transmission / support case 10 so as to treat the residual tillage below the transmission / support case 10.

The upper part of the middle tillage rotor is covered from the center by left and right upper covers 24, 24, side covers 27, 27, and front and rear front and rear covers 30, 31. The upper covers 24, 24 have hinges 25, 2 provided at the center thereof.
It is possible to rotate to the left and right via 5, and the operation is selected by adjusting the rotation angle of the tillage work and the tillage / cultivation work. The angle can be adjusted in a plurality of stages by the cover angle adjusting device 26. The side covers 27, 27 are rotatably supported on the outer ends of the upper covers 24, 24 via hinges 28. The turning adjusters are provided at the ends of the turning shafts of the hinges 28. By 29, the turning angles of the side covers 27, 27 can be adjusted steplessly. The front and rear covers 30 and 31 have their base ends attached to the rear ends of the upper covers 24 and 24, and are vertically rotated as the upper covers 24 and 24 are rotated and adjusted.

Next, the operation of the rotary tiller 1 having the above structure will be described. When attaching or detaching the rotary tiller 1 to or from a tractor (not shown), the stand holder 1
When the stand 17 is supported on the stand 5, it can be attached and detached almost automatically. Also, the rotary tiller 1
Can be moved individually by the caster 18, and can be stored in a warehouse or can be unloaded on a carrier via a scaffolding board. The stand 17 is detached from the stand holder 15 when the rotary tiller 1 works. Loosen the fixing / fixing release bolts 4a and slide the sliding / fixing metal fittings 4 in accordance with the ridge spacing of the crop row to move the work units 3R, 3
Move L left and right to set an appropriate work interval.

When adjusting the working depth of the working units 3C, 3R, 3L, the gauge wheel 16 is moved vertically along the gauge wheel holder 14 and fixed. When only the tillage work is performed by the work units 3C, 3R, 3L, the left and right upper covers 24, 24, the side covers 27, 27, the front and rear front and rear covers 30, are provided above the tillage rotor as illustrated. Work with 31 covered. When cultivating soil for the crop plant, cover angle adjustment device 2
6, the upper covers 24, 24 are rotated around the hinge 25 to adjust the angle upward. Also, the side cover 2
In the case of Nos. 7 and 27, the hinge 28
The turning angle can be adjusted upwards steplessly via. When the angles of the upper covers 24, 24 are adjusted, the front and rear covers 30, 31 are interlocked and rotationally adjusted.

[0018]

As described above, the agricultural working machine provided with a plurality of working units according to the present invention has the following effects by having the configurations of claims 1 to 5. ． Since a stand is provided at the left and right end of the work unit, if you move the left and right work units inward in the left-right direction, the stand will move together, and the machine width of the work machine part will become narrower. It has a good weight balance and is convenient for storage in warehouses and for traveling on a tractor.

.. Each work unit is supported so that it can slide to the left and right with respect to the main body frame, so if you slide the work unit to the left and right while the stand is attached, and position the stand inside the main body frame, the machine width will be reduced. Can be made smaller. ． Since a working depth adjusting device for adjusting the working depth of the entire working unit is provided at at least one location of the plurality of working units, the working depth adjusting device moves with the left and right movements of the working unit to balance the weight of the machine. You can keep good.

[0020]. Since the stand and the working depth adjusting device are provided at the left and right ends of the working unit, the stand and working depth adjusting device move as the working unit moves left and right, and the lateral width of the machine can be narrowed. Therefore, the weight balance of the machine body can be kept good. ． Since the stand is provided with the casters to which the agricultural work machine can move independently, the agricultural work machine can be easily moved by the casters with the agricultural work machine removed from the tractor.

[Brief description of drawings]

FIG. 1 is a rear view of an agricultural working machine according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a partial plan view of the same.

[Explanation of symbols]

1 Rotary Cultivator (Agricultural Working Machine) 2 Main Frame 2a Bracket 3 Working (Cultivating) Unit 3C Central Working Unit 3R Right Working Unit 3L Left Working Unit 4 Sliding / Fixing Bracket 4a Fixing / Unlocking Bolt 4
b bracket 5 top mast 6 lower link connecting portion 7 gear box 7a, 7b input portion 8 outer transmission shaft 9 inner transmission shaft 10 transmission / support case 10a transmission shaft center 11 transmission shaft cover 12 compression rod 13 support member 14 gauge wheel holder 15 Stand holder 16 gauge wheel (working depth adjustment device) 16a
Vertical movement grip 17 Stand 18 Caster 19 Support frame 20 Drive shaft 21 Claw mounting flange 22 Middle tillage claw 23 Top tillage treatment blade 24 Upper cover 25, 28 Hinge 26 Cover angle adjusting device 27 Side cover 29 Rotating adjuster 30, 31 Front Part / rear cover

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2B034 AA07 BA06 BB08 BC06 BD03                       BD07 BE01 BE02 BE06 HA02                       HA16 HB02 HB12 HB17 HB32                       HB33 HB34 HB36 HB42 HB44                 2B041 AA09 AA15 AB05 AC03 AC07                       AC20 CA03 CA16 CD12 CG05                       CG07 CG10 DA04 DA10 DB03                       DC01 DC07 EA02 EC06

Claims (5)

[Claims] 1. An agricultural work machine in which a plurality of work units are arranged at intervals with respect to a main body frame extending in a horizontal direction orthogonal to the traveling direction of the machine body, and a stand is provided at the left and right end portions of the work unit. An agricultural work machine equipped with a plurality of work units characterized by being provided. 2. The agricultural work machine having a plurality of work units according to claim 1, wherein each of the work units is supported so as to be slidable from side to side with respect to the main body frame. 3. At least one of the plurality of work units
3. A farm work machine comprising a plurality of work units according to claim 1, wherein a work depth adjusting device for adjusting the work depth of the whole work unit is provided at a position. 4. A farm work machine comprising a plurality of work units according to claim 1, 2 or 3, wherein a stand and a work depth adjusting device are provided on both left and right ends of the work unit. . 5. The agricultural working machine having a plurality of working units according to claim 1, 2, 3 or 4, wherein the stand is provided with a caster which allows the agricultural working machine to move independently.