JP2003102201A - Ridge-forming unit of rotary implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ridge-forming unit of a rotary implement, capable of adjusting its posture easily by following the posture change of the rotary implement. SOLUTION: This ridge-forming unit is provided by mounting a plowing claw 2 at the rear of a rotary 3 pivoted as capable of freely rotating and driving, supporting a ridge-forming unit 4 for forming the ridges in a field after plowing at the machine body side of the rotary implement and as freely swingable and adjustable along a circular arc locus centered around a rotary axis center of the plowing claw 2, and joining the unit with a rotary cover 14 covering the upper direction of the rotary 3 as one unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ridge shaping device for a rotary working machine provided with a rotary composed of a rotatable plowing claw.

[0002]

2. Description of the Related Art Conventionally, a rotary rotatably rotatably supporting a tilling claw and a ridge shaping device for shaping a ridge in a field after tilling are attached to the rear of the rotary, and an upper portion of the rotary is covered with a rotary cover. 2. Description of the Related Art There is known a rotary working machine in which a rotary cover is rotatably supported along an arc centered around a rotary shaft core of a plowing claw.

[0003]

At this time, the posture of the rotary working machine is changed by changing the tilling depth or changing the amount of submersion of the wheels of the traveling machine body into the field depending on the hardness of the field. In this case, it is necessary to adjust the posture of the ridge shaping device so as to keep the posture of the ridge shaping device constant with respect to the field scene. However, if the posture of the ridge shaping device is adjusted, the gap between the ridge shaping device and the rotary cover changes, so the gap increases, and the cultivated soil is ejected from the gap, so that the ridge can be shaped stably. There was a drawback that you couldn't. Further, since the height adjustment of the ridge shaping device is linear in the vertical direction, there is also a drawback that it is not easy to adjust the posture accompanying the vertical adjustment of the ridge shaping device.

[0004]

A ridge shaping device for a rotary working machine according to the present invention for solving the above-mentioned problems is provided with a rotary 3 rotatably supporting a cultivating claw 2 and a cultivator behind the rotary 3. A ridge shaping device 4 for shaping ridges is attached to a field afterward, the rotary cover 14 is covered with a rotary cover 14 above the rotary 3, and the rotary cover 14 can be freely rotated along an arc centered on the rotation axis of the plowing pawl 2. In the rotary working machine pivotally supported on the ridge shaping device 4, the ridge shaping device 4 is supported on the body side of the rotary working machine so as to be rotatable and adjustable along an arc locus around the rotary shaft center of the plowing pawl 2, and the ridge shaping is performed. The first feature is that the device 4 and the rotary cover 14 are integrally connected.

In addition, a body frame 9 of the rotary working machine,
Between the frame 23 of the ridge shaping device 4 and the frame 23 of the ridge shaping device, a slide connecting part that slidably supports the ridge shaping device 4 along an arc locus centered on the rotation axis center of the tilling claw 2 and the ridge shaping device 4 are suspended. And a connecting rod 20 that is extendable and contractible to support the connecting rod 20.
The second feature is that the ridge shaping device 4 is positioned by adjusting the expansion and contraction of the ridge.

The third feature is that the tail wheel 38 is attached to the frame 23 side of the ridge shaping device 4.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 3 are a side view, a rear view and a rear perspective view of a rotary working machine 1 adopting the present invention. The rotary working machine 1 of the present embodiment is a rear side of a rotary 3 provided with a plurality of tillage claws 2. A ridge shaping device 4 for shaping the ridges in the field is attached to the traveling field body 6 such as a tractor.
Is connected to the rear of the vehicle via a three-point link hitch 7 so that it can be moved up and down. Then, the rotary 3 cultivates the field, and the ridge shaping device 4 shapes the ridge in the field.

The body frame of the rotary working machine 1 is
Gear case 8 into which PTO power is input from the traveling body 6 side
It is composed of a pipe frame 9 protruding further left and right, and the chain case 1 is attached to one (left) outer end of the pipe frame 9.
1 and a side frame 12 are integrally provided at the other (right) outer end portion.

Between the side frame 12 and the lower part of the chain case 11, a claw shaft 13 to which a plurality of plowing claws 2 are attached is pivotally supported so as to be rotationally driven by the driving force from the chain case 11. The rotary 3 is composed of the tilling claw 2 and the claw shaft 13.
Then, the rotary drive of the pawl shaft 13 causes the rotary 3 (cultivating claw 2) to rotate, so that it is possible to perform the plowing work in the field.

At this time, the rotary 3 is covered with a rotary cover 14 on the upper front side and the lateral side, and the rotary cover 14 has an arc-shaped ceiling along the rotation locus of the tip of the tilling pawl 2 in a side view. Side plates 17 that cover the sides of the rotary 3 are attached to the left and right ends of the plate 16. The lower end portions of both side plates 17 are supported by a metal 18 provided on the bearing portion of the claw shaft 13 on the side of the chain case 11 or the side frame 12 so as to be rotatable back and forth.

A rear cover 25 that covers the upper rear side of the rotary 3 is attached to the rear end of the rotary cover 14. With the above structure, the rotary cover 14 has the pawl shaft 1
It is rotatably supported around the claw shaft with 3 as an axis.

On the other hand, a top mast 19 is attached to the upper portion of the gear case 8, and the top mast 1
On the front upper end side of 9, there is provided a connecting portion which is connected to the automatic hitch 21 portion mounted on the three-point link hitch 7 on the traveling machine body 6 side. An expandable rod 20 which is a connecting rod that is expanded and contracted by the rotation of the handle 22 is attached to the upper rear side of the top mast 19, and the frame 23 of the ridge shaping device 4 is connected to the expandable end of the expandable rod 20. That is, the ridge shaping device 4 is suspended and supported by the telescopic rod 20 on the body frame of the rotary working machine 1.

The frame 23 of the ridge shaping device 4 has horizontal frames 24 in the left-right direction, and plate-like connecting members 26 provided on both sides of the horizontal frame 24 and extending in the front-rear direction.
The telescopic rod 20 includes a rear frame 28 that is attached to the rear side of the connecting member 26 via a bracket 27 and that is arranged substantially parallel to the rear of the horizontal frame 24.
Are connected to each other via a connecting bracket 29 protruding from substantially the center of the lateral frame 24.

Further, from the pipe frame 9, a bracket 31 corresponding to both connecting members 26 is provided so as to project rearward, and the connecting member 26 and the bracket 31 are also connected. At this time, the connecting member 26 and the bracket 31 are connected via a long hole 32 formed in the bracket 31 and a pin 33 fixed to the connecting member 26 side and protruding toward the bracket 31 side. Is the bracket 31
On the other hand, it is slidable within the range of the long hole 32. The elongated hole 31 is formed along a circular arc locus with the claw shaft 13 as the center.

That is, the ridge shaping device 4 is slidably and pivotally supported by the body frame of the rotary working machine 1 by a slide connecting portion composed of a connecting member 26 and a bracket 31. Further, the rotary cover 16 and the rear cover 25 are
In the upper part, it is pivotally supported and connected to the frame 23 side (bracket 27) of the ridge shaping device 4 via brackets 34 and 36.

As a result, the rotary cover 16 and the rear cover 25 are integrated with the ridge shaping device 4 with respect to the rotation around the pawl shaft. Further, vertical frames 37 are provided in the vertical direction at both left and right ends of the rear frame 28, and tail wheels 38 are attached to the end portions of the vertical frame 37. As a result, the tail wheel 38 is also integrated with the ridge shaping device 4.

With the structure shown above, the telescopic rod 2
By the expansion and contraction of 0, the ridge shaping device 4 is rotated around the claw shaft along an arc locus around the claw shaft 13, the height with respect to the traveling machine body 6 is adjusted, and the ridge shaping device 4 is rotated. Accordingly, the rotary cover 16, the rear cover 25, and the tail wheel 38 rotate around the claw shaft in a state of maintaining the positional relationship with the ridge shaping device 4 integrally with the ridge shaping device 4.

Thus, as shown in FIG. 4, when the posture of the rotary working machine is changed by changing the plowing depth (shallow plowing in FIG. 1 and deep plowing in FIG. 4), the handle 22 is rotated. By expanding and contracting the telescopic rod 20 and rotating the ridge shaping device 4, it is possible to easily keep the ridge shaping device 4 in a constant posture with respect to the field while keeping the posture with respect to the rotary 3 constant.

At this time, the tail wheel 38, the rotary cover 16,
The rear cover 25 is also rotated back and forth integrally with the ridge shaping device 4 along an arc locus about the claw shaft 13, and the positional relationship between the ridge shaping device 4 and the rotary cover 16 is maintained. By adjusting the height (rotational angle) of the ridge, the gap between the ridge shaping device 4 and the rotary cover 16 and the rear cover 25 does not increase, and spouting of the cultivated soil is prevented from this gap, so that stable tilling and ridge shaping work can be performed. It can be carried out. Since the position of the tail wheel 38 also rotates integrally with the ridge shaping device 4 around the claw axis, the posture and position of the tail wheel 38 with respect to the rotary 3 are kept constant, and the tail wheel 38 is complicated and complicated.
There is no need to adjust the position of.

[0020]

According to the structure of the present invention configured as described above, since the ridge shaping device rotates integrally with the rotary cover, the positional relationship between the rotary cover and the ridge shaping device is maintained. The height with respect to the traveling machine body is adjusted by turning along the arc centering around the axis of rotation of the tilling claw.

Therefore, when the posture of the rotary working machine is changed by changing the tilling depth or changing the subduction amount of the wheel into the field according to the hardness of the field,
By rotating the ridge shaping device, the posture of the ridge shaping device with respect to the field scene can be kept constant while the posture with respect to the rotary is kept constant.

At this time, since the rotary cover and the ridge shaping device rotate integrally, the positional relationship between the ridge shaping device and the rotary cover is maintained, and the height (rotation angle) of the ridge shaping device is adjusted to adjust the ridge shaping. The gap between the device and the rotary cover does not increase, spout of cultivated soil is prevented from the gap between the ridge shaping device and the rotary cover, and stable tilling and ridge shaping work can be performed.

Further, by attaching the tail wheel to the frame side of the ridge shaping device, there is also an effect that the posture of the tail wheel with respect to the rotary is kept constant. By suspending the ridge shaping device on the machine body frame side of the rotary working machine by the connecting rod, the ridge shaping device can be easily positioned by expansion and contraction of the connecting rod.

[Brief description of drawings]

FIG. 1 is a side view of a rotary working machine connected to a traveling machine body.

FIG. 2 is a rear view of the main parts of the rotary working machine.

FIG. 3 is a rear perspective view of the rotary working machine.

FIG. 4 is a side view of the rotary working machine connected to the traveling machine body in a deep tillage state.

[Explanation of symbols]

2 tillage claws 3 rotary 4 ridge shaping device 9 Pipe frame (airframe frame) 14 Rotary cover 20 Telescopic rod (connecting rod) 23 frames 38 tail wheels

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Plow Tadayoshi             38, Sairinji, Yahagi-cho, Okazaki City, Aichi Prefecture             Agricultural machinery Co., Ltd. (72) Inventor Mitsuo Sato             38, Sairinji, Yahagi-cho, Okazaki City, Aichi Prefecture             Agricultural machinery Co., Ltd. (72) Inventor Kazuyoshi Tsuchiya             38, Sairinji, Yahagi-cho, Okazaki City, Aichi Prefecture             Agricultural machinery Co., Ltd. F term (reference) 2B032 AA06 CA06 CB13 CB14 CB16                       CB17 CB28 GA26

Claims (3)

[Claims] 1. A rotary (3) rotatably rotatably supporting a tilling claw (2), and a ridge shaping device (4) at the rear of the rotary (3) for shaping a ridge in a field after plowing, A rotary working machine in which the upper part of the rotary (3) is covered with a rotary cover (14), and the rotary cover (14) is rotatably supported along an arc centered around the rotation axis of the plowing claw (2). In the ridge shaping device (4), the ridge shaping device (4) is supported on the body side of the rotary working machine such that the ridge shaping device (4) can be pivotally adjusted along an arc locus around the rotation axis of the tilling claw (2). ) And a rotary cover (14) are integrally connected to each other. 2. A body frame (9) of a rotary working machine.
And a frame (23) of the ridge shaping device (4), a slide for pivotally supporting the ridge shaping device (4) slidably along an arc locus centering on the rotation axis center of the plowing claw (2). The rotary according to claim 1, wherein a connecting portion and an extendable connecting rod (20) for suspending and supporting the ridge shaping device (4) are provided, and the ridge shaping device (4) is positioned by adjusting the extension and contraction of the connecting rod (20). A ridge shaping device for working machines. 3. The ridge shaping device for a rotary working machine according to claim 1, wherein a tail wheel (38) is attached to the frame (23) side of the ridge shaping device (4).