JP2003274703A - Residual unplowed ground-treating device of transmission case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To install a residual unplowed ground-treating claw having a vertical blade and a horizontal blade as projecting from a lower end part of a transmission case arranged with a plowing rotor from the lower end part to its side direction, to its lower direction and to improve the horizontal blade. <P>SOLUTION: This residual unplowed ground-treating device by arranging the plowing rotor from the lower end of the transmission case 10, and installing the vertical blade 23a and horizontal blade 23b as projecting from the lower end of the transmission case 10 to its lower direction is provided by (1) installing the horizontal blade 23b of the residual unplowed ground-treating claw 23, having a scooping surface at the lower end part of the vertical blade 23a and also forming a turning the soil over action surface in the rear directional side of the machine body-progressing direction, and (2) forming the turning the soil over-action surface in the side blade 23b of the residual unplowed ground- treating claw 23 by extending the rear end part of the horizontal blade 23b in the rear direction and bending in upward direction. By the horizontal blade 23, the residual unplowed ground treatment in a whole area under the transmission case 10 is performed in a good accuracy. <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 a residual tillage treatment in which a residual tillage treatment claw having a vertical blade and a horizontal blade is projected downward from the lower end of a transmission case in which a tilling rotor is arranged laterally from the lower end. Regarding the device.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 6 and 7, a drive shaft B is projected from the lower end portion of a center drive type transmission case A to both left and right sides, and a circular pawl mounting flange C is attached to the drive shaft B. And a plurality of tilling claws D are attached to the outer peripheral portion of the claw mounting flange C at predetermined intervals in the radial direction to form a tilling rotor, and the vertical blade is directed downward from the lower end of the transmission case A. Also known is a residual tillage treatment device for a transmission case in which a residual tillage treatment claw E having a horizontal blade is projected.

In the conventional residual tillage treating claw E, the horizontal blade is extended straight forward and backward like a well-known deep plowing chisel in a forward-backward direction, as in the well-known deep-tilling chisel. The residual tillage treatment could not be performed sufficiently. In particular, when a planting groove for a crop was formed, the planting of the crop could not be performed successfully if there was a residual plowed portion.

[0004]

As described above, in the conventional residual tillage treatment claw E, the residual tillage treatment under the transmission case A is insufficient, and there is residual tillage. Therefore, it is necessary to improve this. It was

The present invention has been made for the purpose of solving the above problems, and in particular, by improving the horizontal blade of the residual tillage treatment claw, the residual tillage treatment under the transmission case is sufficiently performed. It is intended to provide a residual tillage treatment device for a transmission case.

[0006]

In order to achieve the above object, the present invention is characterized by having the following configurations (claims 1 and 2). A. In a residual tillage treatment device for a transmission case, in which a tilling rotor is disposed laterally from the lower end of the transmission case, and a residual tillage treatment claw having a vertical blade and a horizontal blade is projected downward from the lower end of the transmission case, The horizontal blade of the residual tillage treatment claw was provided with a rake surface at the lower end of the vertical blade and with a soil inverting surface on the rear side in the machine body traveling direction.

B. The soil reversal action surface of the horizontal blade of the residual tillage treatment claw was formed by extending the rear end of the horizontal blade rearward and bending it upward.

[0008]

With the above construction, the residual tillage treatment device for the transmission case of the present invention has the following actions. a. The horizontal blade of the residual tillage treatment claw has a rake face at the lower end of the vertical blade, and a soil reversal action surface is formed on the rear side in the machine traveling direction, so that the tiller rotor under the transmission case can cultivate it. The remaining plowed portion is cultivated so that it is scooped by the horizontal blade, and is further inverted by the soil inverting surface to be finished in a flat shape.

B. The soil reversal surface of the horizontal blade of the residual tillage treatment claw is formed by extending the rear end of the horizontal blade rearward and bending it upward, so that the horizontal tiller allows the residual blade portion under the transmission case to be widely cultivated by the horizontal blade. Then, it is inverted by the soil inverting surface and finished evenly.

[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, as shown in FIGS. 4 and 5, a residual plowing treatment blade 23 is attached to the front side of the lower end portion of the transmission / support case 10 so as to treat residual plowing below the transmission / support case 10. ing. The horizontal blade 23b of the residual tillage treatment claw 23 has a rake surface at the lower end of the vertical blade 23a and is provided with a soil inverting action surface on the rear side in the traveling direction of the machine body. In addition, the soil inverting action surface of the horizontal blade 23b of the residual tillage treatment claw 23 is formed by extending the rear end of the horizontal blade 23b rearward and bending it upward.

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. In the working unit 3, the tilling rotor performs a tilling work of a predetermined width, and the portion of the transmission and support case 10 that is left under tillage is tilled by the horizontal blade 23b of the tillage treatment claw 23 and finished evenly. To be

When adjusting the working depth of the working units 3C, 3R, 3L, the gauge wheel 16 is moved up and down 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.

[0019]

As described above, the apparatus for treating residual tillage of a transmission case according to the present invention has the following effects by having the configurations of claims 1 and 2. ． The horizontal blade of the residual tillage treatment claw has a rake face at the lower end of the vertical blade, and a soil reversal action surface is formed on the rear side in the machine traveling direction.Therefore, it is cultivated by the tilling rotor below the transmission case. It is possible to cultivate the residual tillage part which has not been laid so that it can be scooped by the horizontal blade, and further to invert it by the soil inverting action surface to finish it in a flat shape. And transmission case 1
0 It is possible to perform the residual tillage treatment in the entire lower region with high accuracy.

[0020]. The soil reversal action surface of the horizontal blade of the residual plowing treatment claw was formed by extending the rear end of the horizontal blade rearward and bending it upward, so that the residual plowing part below the transmission case can be widely cultivated by the horizontal blade. , It can be turned over by the soil inversion action surface and finished evenly.

[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.

FIG. 4 is a rear view of the present invention.

FIG. 5 is a side view of the same.

FIG. 6 is a rear view of a conventional example.

FIG. 7 is a side view of the same.

[Explanation of symbols]

1 Rotary Cultivator (Agricultural Work Machine) 2 Main Frame 2a Bracket 3 Working (Cultivating) Unit 3C Central Working Unit
3R Right side working unit 3L Left side 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 Overplow treatment blade 23a Vertical blade 23b Horizontal blade 24 Upper cover 25, 28 Hinge 26 Cover angle adjusting device 27 Side cover 29 Rotation Adjusters 30, 31 Front / rear cover

Continued front page    F term (reference) 2B033 AA05 AB01 AB14 AC04 BB09                       CA08 DA06 DB06 DB26 EA07                       EA17 ED01 ED02                 2B034 AA07 BA07 BB08 BC06 BD03                       BE01 BE02 BE06 HA02 HA16                       HB02 HB32 HB33 HB34 HB36                       HB42

Claims (2)

[Claims] 1. A residual of a transmission case in which a cultivating rotor is arranged laterally from a lower end of the transmission case, and a residual tillage treatment claw having a vertical blade and a horizontal blade is projected downward from the lower end of the transmission case. In the tillage treatment apparatus, the horizontal blade of the residual tillage treatment claw has a rake surface at the lower end of the vertical blade, and is provided with a soil inverting action surface formed on the rear side in the machine traveling direction. Power tillage treatment device for transmission cases. 2. The soil inverting action surface of the horizontal blade of the residual tillage treatment claw is formed by extending the rear end of the horizontal blade rearward and bending it upward. The residual tillage treatment device for the transmission case.