JP2562213Y2 - Row coating device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ridge coating apparatus for mechanically shaping ridges in paddy fields and the like.

[0002]

BACKGROUND OF THE INVENTION Conventionally kind ridge coating apparatus, real-Open
As disclosed in Japanese Patent Application Publication No. 3-79604, a sled provided on the lower surface side of the main body of the levee coating apparatus is connected to a towing vehicle such as a tractor via a lifting link mechanism so that the sled can be used in a field scene. It is configured to slide, and a vibrator and a ridge shaping plate as an example of a ridge shaping means that presses soil lifted from a field scene with a tilling part such as a rotary claw provided on a main body and shaped into a ridge of a predetermined shape. Was configured to be.

[0003] Then, the sled body applied to the field scene (mud surface) is
As a reference, the slope of the ridge (slope) is scraped off and rotated
Pretreatment part and mud guide for body, top surface scraping rotating body, etc.
The board and the shaping board are adjusted to the height of the ridge, and manually operated by the operator
Up and down with the levee coating position adjustment lever
The sledges in the publication support the weight of the ridger.
In addition, by operating the ridge coating position adjustment lever,
Ridge coating frame, mud guide plate and shaping plate
When adjusting in the upward direction, the sled plate also rises at the same time,
Conversely, descend the ridge coating frame, mud guide plate, and shaping plate
When adjusting the direction, the sled plate is also lowered at the same time.
Had been formed.

[0004]

[Problem to be solved by the invention ] By the way, the tilling part
The depth of the cut into the field scene is determined by the sled
Is approximately proportional to the sinking depth and therefore the amount of soil lifted
Changes accordingly. However, softness in the field scene
Is difficult to know accurately, and even in one field
Softness fluctuates due to differences in the degree of hydration depending on the location
Therefore, according to the above-mentioned conventional technology, the worker needs to
Judging empirically, the mounting height of the sled
It was adjusted by manual operation of the coating position adjusting lever. This
In the manual adjustment of the above , there is a problem that the amount of digging of the cultivated part in the field scene is not stable, and the height of the ridge shaping cannot be made substantially constant.

It is an object of the present invention to solve this problem and to provide a ridge coating apparatus capable of stably performing ridge shaping.

[0006]

In order to achieve the above object, a ridge coating device according to the present invention comprises a ridge shaping unit for pressing a ridge shaping plate against a ridge surface, and a tilling unit for scraping soil in a field scene. In the ridge coating device in which the main body is connected to the towing vehicle so as to be able to move up and down, a sled body that slides in a field scene is provided at a lower portion of the main body , while the main body includes a sled body. for
Inspection that can rotate relatively up and down and slides into the field scene
An exit sled is provided, and the sled is moved in accordance with the amount of vertical rotation of the detection sled.
It is configured to detect the magnitude of the settlement amount with respect to the field scene,
Control means is provided for controlling the vertical movement of the main body relative to the towing vehicle in accordance with the amount of vertical rotation of the detection sled .

[0007]

Next, an embodiment of the present invention will be described. The ridge coating device 1 connects a front portion of the main body 2 and a rear portion of a tractor 3 as a towing vehicle with a pair of left and right lower links 5, 5.
And a top link 6 so as to be movable up and down via a parallel link mechanism 4. A lift arm 7 provided at the rear of the tractor 3 is connected to the parallel link mechanism 4 and is configured to be driven up and down by a hydraulic cylinder 8. The hydraulic cylinder 8 is hydraulically controlled via a control valve 9 from a hydraulic pump (not shown) mounted on the tractor.

A base of a pre-processing drive case 11 is attached to the main body 2 via a support shaft 10 so as to be swingable to the left and right, and a ratchet-shaped pre-processing claw 12 for breaking the original ridge is mounted on the pre-processing drive case 1.
1 Provided in front of the tip. The base front side of the pre-processing claw 12 is covered with a pre-processing case 13 to be attached to the pre-processing drive case 11,
Pre-processing such as weed removal is performed by breaking the upper corner of the original ridge with the pre-processing claw 12 rotating counterclockwise (direction of arrow A) in a front view (see FIG. 3).

Behind the pre-processing claw 12, a rotary claw 15 and a rotary blade 16 are provided in a cover case 2a of the main body 2.
Is provided. The concentric rotary claw 15 and the rotary blade 16 are rotated clockwise (arrow B direction) as viewed from the front in FIG. 3 to cut the field scene (H) on the side of the original ridge and arranged above the ridge (K). Mud cover 17
The mud is made to fall on the upper surface of the ridge (K) by the guidance of. A ridge shaping plate that transmits power from the PTO shaft 20 at the rear of the tractor 3 to the drive shaft 22 of the main body 2 via the free shaft 21 and presses the pretreatment claw 12, the rotary claw 15, the rotary blade 16 and the ridge (K). Power is transmitted to a flexible shaft 26 connected to a rotating shaft 24 of a vibrator 23.

Reference numeral 18 denotes a ridge shaping portion disposed behind the cover case 2a of the main body 2. The ridge shaping portion 18 includes a vibrator 23 for generating an oscillating force by rotation of a rotary shaft 24 to which an eccentric weight is attached, and a vibrator 23. And an upper end of an electric cylinder 27 with an electric motor for adjusting the ridge shaping portion 18 up and down via a bracket 28 on the rear surface of the cover case 2a. To connect. The tip of a piston rod 29 of the electric cylinder 27 is rotatably supported by a shaft 30 projecting from a lower end of a square pipe slider 31 disposed parallel to the axis of the electric cylinder 27 in a plan view. Similarly, a middle part of a square pipe slider 31 rotatably supported by the shaft 30 is slidably fitted into a square pipe guide body 33 attached to an L-shaped pipe 32 projecting rearward from the main body 2.

An elevating frame 34 is integrally connected to the upper end of the square pipe slider 31, and the rear end of an L-shaped pipe frame 35 in plan view is fixed thereto.
On the other hand, a marker 36 for indicating the upper corner of the ridge to be shaped is hung at the tip of the pipe frame 35 while attaching the mud cover 17 to the pipe frame 35. Therefore, when the electric cylinder 27 is operated so that the tip of the piston rod 29 moves up and down, the square pipe slider 31 moves up and down, and the lifting frame 3
4. The mud cover 17 and the marker 36 move up and down via the pipe frame 35.

The elevating frame 34 has parallel links 37, 3
The shaping frame 39 is attached to the shaping frame 39, and the vibration case 41 of the vibrator 23 and the ridge shaping plate 25 are attached to the shaping frame 39 via the vibration absorbing springs 40, 40, so that the ridge shaping section 18 is in a floating state (idle state). The upper surface and the inclined surface of the ridge (K) in the field such as semi-dry are compacted by the vibrator 23 that vibrates. The parallel link 37 is connected to the lifting frame 34.
Is fixed via a lock pin (not shown)
Since the swing of the parallel links 37 and 38 is prevented and the floating operation of the ridge shaping section 18 is eliminated, the ridge shaping plate 2
5, the compaction pressure can be reduced, and ridge shaping can be performed stably with soft mud in wetlands and the like.

Reference numeral 42 denotes a round pipe-shaped sled body having an upwardly curved front for sliding in the field scene (H), and a pair of front and rear struts 43 for attaching the sled body 42 to the cover case 2a.
The coulter 45 is attached to the front end of the sled body 42 or the cover case 2a via a bearing arm 44 having a mud dropping function so that straw is not clogged at the front end position of the sled body 42 while being attached to the height of the sled body 42 so as to be adjustable. Is provided.

Reference numeral 46 denotes a side disk provided at the rear portion of the sled body 42 so as to be adjustable in height. The soil obtained by cutting the field scene with the coulter 45 is moved by the side disk 46 to the ridge, and the rotary claw 15 and the rotary claw are rotated. The groove formed by the blade 16 is filled with the moved soil. Reference numerals 47 and 48 denote left and right stands for supporting the ridge coating device 1 on the ground. Each of the stands 47 and 48 has a caster 49 at the lower end thereof which can be inserted and removed with a pin.

The sled body 42 is formed longitudinally in the traveling direction of the ridge coating apparatus 1, and the lower part of the long sliding portion of the sled body 42 sinks into the field scene (H). The reaction force at the time of soil lifting work by the rotary blade 15 and the rotary blade 16 and the reaction force at the time of ridge shaping by the vibrator 23 (these reaction forces are in a direction perpendicular to the advance of the ridge coating device 1) are applied to the length of the sled body 42. It can be received on the side surface, and has an effect of stabilizing the linear progress of the ridge coating device 1 and the tractor 3.

Reference numeral 50 denotes a main body 2 such as a side of the sled body 42.
With the detection sled disposed at an appropriate position below, the front end of the detection sled 50 is mounted on a bracket 51 provided on the front support column 43 so as to be vertically rotatable, and the detection sled 50 may be rotated by a spring 52 (a torsion spring may be used). The lower surface is urged to press the field scene (H) with a predetermined pressure, and the detection sled 50 and the hydraulic control valve 9 are connected to a wire 53 composed of an inner wire and an outer sleeve.
And so on. With these configurations, the amount of settlement (H1) of the sled body 42 with respect to the field scene (H) is detected based on the magnitude of the rotation angle of the detection sled 50, and when the amount of settlement (H1) exceeds a predetermined value, the control is performed. By rotating the operating part of the valve 9,
A signal for raising and rotating the lift arm 7 is issued, and a signal for lowering the lift arm 7 is issued when the amount is equal to or less than a predetermined sinking amount. The configuration is such that the burden is imposed, and the sinking amount of the sled body 42 is controlled to be kept substantially constant irrespective of the hardness of the field scene (H).

As another embodiment of this control, the detection sled 50
Is detected by an encoder (not shown), and the detection signal is input to control means such as a microcomputer mounted on the tractor 3,
The control valve 9 may be operated by a command signal from the control means to control the lift arm 7 to move up and down. The lifting drive means of the lift arm 7 is not limited to the hydraulic cylinder 8, but may be a hydraulic motor or an electric motor.

As described above, the amount of subsidence of the sled plate 42 with respect to the field scene (H) is detected by the detection sled 50, and the main body 2 of the levee coating apparatus is controlled to move up and down so that the amount of subsidence becomes substantially constant. Therefore, irrespective of the softness of the field, the amount of soil scraped up in the direction of the ridge shaping plate 25 in the cultivation part can be made substantially constant, so that shaping such as the height of the ridge can be stabilized. . FIG. 6 is a detailed view of the vibrator 23. The flexible transmission shaft 26a made of rubber or the like and the outer tube 26 are shown in FIG.
b, the end of the flexible shaft 26 is connected to the rotating shaft 24, and the eccentric weight 55 is fixed to the rotating shaft 24 provided in the vibration case 41 so that the two rotate integrally. The ridge shaping plate 25 is attached to the lower surface side of the case 41. In addition, the vibration case 41 has a rotating shaft to which another eccentric weight arranged in a direction perpendicular to the paper surface of FIG. 6 (in the longitudinal direction of the ridge coating device 1) is attached, and both rotating shafts are integrated via a timing belt 56. It is configured to rotate.

[0019]

As described above, according to the present invention, the main body is provided with the ridge shaping portion for pressing the ridge shaping plate against the ridge surface and the tilling portion for scraping the soil in the field scene. In a ridge coating device in which a main body is connected to a towing vehicle so as to be able to move up and down, a sled body is provided at a lower portion of the main body to slide in a field scene.
On the other hand, the main body rotates vertically with respect to the sled body.
A detection sled, which is capable of sliding in contact with the field scene, is provided;
The sinking of the sled with respect to the field scene according to the amount of vertical rotation of the sled.
It is configured to detect the magnitude of the lower amount, and the detection sled rotates up and down.
Since is provided with a control means for vertically moving the regulatory control against towing vehicle the body depending on the amount, it relies on the operator's experience
It is possible to automatically adjust the amount of soil scraped up in the direction of the ridge shaping plate 25 in the cultivation part, regardless of the hardness of the field, regardless of the softness of the field . Therefore, there is an effect that the shaping such as the height of the ridge can be stabilized.

[Brief description of the drawings]

FIG. 1 is a side view of a tractor and a furrowing device.

FIG. 2 is a plan view of the ridge coating device.

FIG. 3 is a front view of the furrowing device.

FIG. 4 is a rear view of the furrowing device.

FIG. 5 is a side view of the ridge coating device.

FIG. 6 is an enlarged sectional view taken along the line VI-VI in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Row coating device 2 Main body 2a Cover case 3 Tractor 4 Parallel link mechanism 7 Lift arm 8 Hydraulic cylinder 9 Control valve 12 Pretreatment claw 13 Pretreatment case 14 Rotary tilling part 15 Rotary claw 16 Rotary blade 17 Mud cover 18 Ridge forming part 23 Vibrator 24 Rotating shaft 25 Ridge shaping plate 26 Flexible shaft 34 Elevating frame 37, 38 Parallel link 39 Shaping frame 40 Vibration absorbing spring 41 Vibration case 42 Sled body 50 Detection sled 51 Bracket 52 Spring 53 Wire 55 Eccentric weight 56 Timing belt

Claims (1)

(57) [Scope of request for utility model registration] A ridge shaping section for pressing a ridge shaping plate against a ridge surface;
A cultivation device comprising a tilling unit for raising soil in a field scene provided on a main body, and the main body being connected to a towing vehicle so as to be able to move up and down, wherein a sled body sliding on the field scene is provided at a lower portion of the main body. To
On the other hand, the main body is vertically moved relative to the sled body.
A detection sled that is rotatable and slides on the field scene is provided,
According to the vertical rotation amount of the detection sled,
To detect the magnitude of the settlement
A levee coating apparatus, further comprising control means for controlling the vertical movement of the main body relative to the towing vehicle according to the amount of rotation .