JPH0610727Y2 - Tillage equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a cultivating device, and to an improved cultivating structure of a cultivating rotary and a ground leveling body.

(Prior Art) Conventionally, in this type of tilling device, for example, the upper portion of the tilling rotary is covered with a cover body, and the upper end portion of the ground leveling body is rotatable by a hinge at the rear end portion of the cover body. The structure is attached to the shaft.

Then, the tilled soil cultivated by the tillage rotary is guided by the cover body and is discharged to the upper part of the ground leveling body, and the ground leveling body is used to level the tilled soil.

Further, as described in Japanese Utility Model Application Laid-Open No. 57-201106, a left and right side cover of the tillage cover is formed with a hole for pivotal support and a fixing hole in front of and behind the hole for pivotal support, respectively. A hinge is rotatably supported on the left and right ends of the upper end of the rear cover, and a pivot pin that is pivotally supported in the pivot hole is provided at the tip of the left and right hinges. A fixing bolt that is selectively inserted into one of the front and rear fixing holes is provided in the portion, and the left and right hinges are rotated in the front-rear direction about the left and right pivot pins, and the rear end of the tiller cover is rotated. There is known a structure in which the length of the rear cover is adjusted back and forth with respect to a portion to be overlapped, and the set position is fixed by left and right fixing bolts.

(Problems to be solved by the invention) In the structure in which the leveling body is fixedly mounted on the rear end of the cover body, the upper space between the leveling body and the tilling rotary is always constant, so that the tilling field is fixed. When the amount of cultivated soil cultivated by the rotary changes, that is, when the soil is increased by the working depth, the upper space between the cultivated rotary and the soil terrain is clogged, or the soil is soiled. If the amount is small, there is a problem that the leveling action by the leveling body becomes insufficient.

Further, in the structure described in the above publication, the rear cover can be moved back and forth with respect to the tillage rotary to adjust the distance, but in this case, the left and right hinges of the rear cover are rotated in the front and rear direction about the left and right pivot pins. Position the rear cover forward and backward with respect to the rear end of the tillage cover, and fix the rear cover by inserting the left and right fixing bolts into the left and right fixing holes at the front or the left and right fixing holes at the rear. Therefore, when changing the setting position of the rear cover, it is necessary to rotate the left and right hinges and attach and detach the left and right fixing bolts, which requires a lot of labor and is not preferable in improving operability. Also, since the left and right hinges are fixed using the front left and right fixing holes or the rear left and right fixing holes, it is possible to change the position of the rear cover back and forth at regular intervals, Flip unable to gap adjusting steplessly an upper space, there is a problem that.

Therefore, the present invention has been made in view of such a point, and it is possible to easily and steplessly adjust the upper space between the tilling rotary and the ground leveling body according to the soil amount. Therefore, it is an object of the present invention to provide a tilling device capable of reliably preventing clogging between the tilling rotary and the ground leveling body and capable of performing a sufficient leveling action on the ground leveling body.

(Means for Solving the Problems) The tilling device of the present invention covers a machine frame, a cultivating rotary rotatably provided on the machine frame, and an upper part of the cultivating rotary provided on the machine frame. A cover body, and a leveling body which is located at a rear portion of the tilling rotary and is attached to a rear end portion of the cover body to level the cultivated soil, and the cover body is provided at both left and right end portions of the top plate. A side plate is provided, and a support shaft is provided between the rear end portions of the left and right side plates, and the ground leveling body has a pipe body rotatably connected to the upper end portion by a hinge. A projecting interlocking piece in the middle part of the cover body, a pipe body of the soil leveling body is pivotally supported in a vertical direction on a support shaft of the cover body, and the interlocking piece is provided between the tilling rotary and the soil leveling body. It is equipped with an operating rod for remote operation that adjusts the space above.

(Operation) As the cultivating device of the present invention advances while rotating the cultivating rotary, the cultivating soil is sequentially cultivated by the cultivating rotary, and the cultivating soil is guided to the cover body and discharged to the upper part of the leveling body. At the same time, the ground is dropped along the ground leveling body, and the ground leveling is sequentially performed as the ground leveling body advances.

At this time, when the soil volume of the tilling soil changes depending on the tilling depth of the tilling rotary, if the operating rod for remote operation is operated to move back and forth, the pipe body of the ground leveling body is moved by the operating rod through the interlocking piece. Is vertically rotated about the support shaft of the cover body, and this ground leveling body is vertically rotated with respect to the tilling rotary, and the upper space between the ground leveling body and the tilling rotary is adapted to the soil amount. It is adjusted according to the interval.

Therefore, the tilled soil can be smoothly dropped along the ground leveling body and sufficiently leveled without clogging the upper space between the ground leveling body and the tilling rotary.

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 is a machine frame, which has a main frame 2 which is long in the left-right direction, and upper and lower ends of opposing brackets 3 are attached to the left and right ends of the main frame 2, respectively. A vertical chain case 4 is attached to the outer side of the one bracket 3. In addition, the one bracket 3
A cultivating rotary 5 is rotatably mounted between the bracket 3 and the chain case 4 near the lower end. This cultivating rotary 5 includes the bracket 3 on one side.
A cultivating shaft 6 is rotatably mounted between the other lower end portion of the bracket 3 and the chain case 4, and the bracket 7 is provided on the circumferential side portion of the cultivating shaft 6 at a predetermined interval. A large number of plowing nails 8 are radially provided via the.

A cover body 9 covering the upper part of the tilling rotary 5 is fixed between the upper portions of the opposing brackets 3. The cover body 9 is a top plate curved in an arc shape.
Side plates 11 are formed on the left and right ends of the top plate 10, and connecting pieces 12 are fixed to the rear ends of the left and right side plates 11 so as to face each other. A support shaft 13 is laterally provided between the intermediate portions.

In addition, 14 is a plate-shaped ground leveling body that is opposed to the rear part of the tilling rotary 5, and this ground leveling body 14 is a ground leveling plate part that is curved downwards from the middle part toward the rear part in an arc shape. In addition to having 15, the soil guiding plate portion 16 is formed above the middle portion. In addition, the soil guide plate portion 16 of the ground leveling body 14
A hollow cylindrical pipe body is attached to the upper end of the with left and right hinges 17.
18 is rotatably connected, and the ground leveling body 14 is a pipe body 18
At the time of installation via the left and right hinges 17 around the center of the
It does not rotate in the approaching direction towards the tilling rotary 5.

In addition, a pair of interlocking pieces 19 are provided in the middle portion of the pipe body 18 in the left-right direction so as to face each other and be inclined rearward and upward,
Between the upper ends of the pair of interlocking pieces 19, a support shaft 20 is used to form a nut body.
21 is rotatably mounted vertically. The leveling body 14 is rotatably inserted in the pipe body 18 through the support shaft 13, and is pivotally supported in the vertical direction about the support shaft 13.

Further, a screw shaft portion 23 at one end portion of an operating rod 22 for remote operation is screwed to the nut body 21 so as to be able to move back and forth.
A portion of the other end of the main body 2 near the operation portion 24 is rotatably inserted and supported by a guide support 25. The guide support 25 gradually extends from both sides of the main frame 2 toward the upper front. A supporting shaft 28 is rotatably mounted between a pair of supporting pieces 27 projecting from the upper part of the front side of the existing mast 26. In addition, the main frame 2
A connecting arm 29 is provided so as to project from both side portions to a lower front portion, and a gauge wheel 30 and a lower pin 31 are provided in the vicinity of the front end of the facing connecting arm 29, respectively. The mast 26 is connected with a stay 32, and a connecting portion 33 is formed at the tip of the mast 26.

Further, in the middle part of the main frame 2, there is provided a mission 35 which projects the input shaft 34 toward the front.
By the output from the output shaft 36 of 35, the chain case 4
The tilling rotary 5 is rotatably driven through an interlocking medium such as an internal chain.

Next, the operation of the above embodiment will be described.

The lower pin 31 of the left and right connecting arms 29 and the connecting portion 33 of the mast 26 are respectively connected to the three-point suspension mechanism of the tractor, and the input shaft 34 is connected to the power output shaft of the tractor via the power transmission shaft. When the input shaft 34 is rotated through the power transmission shaft by the output from the power take-off shaft while the tractor pulls and advances the machine, the cultivating rotary shaft is output through the output shaft 36 of the mission 35 and the interlocking medium. 5 proceeds while being rotationally driven.

Then, the cultivated soil is sequentially cultivated by the cultivating rotary 5, and the cultivated soil is guided by the cover body 9 and is discharged to the soil guide plate portion 16 above the leveling body 14, and the soil guide plate portion 16 is provided with the soil guide plate portion 16. Along with being reversed and dropped, the ground leveling plate portion 15 at the lower part is sequentially leveled.

At this time, when the soil amount of the tilling soil changes depending on the tilling depth of the tilling rotary 5, when the operator on the tractor grips the operating portion 24 and rotates the operating rod 22, the screw shaft portion 23 is The screwed nut body 21 is moved back and forth along the screw shaft portion 23, and the pipe body 18 of the pair of interlocking pieces 19 having the nut body 21 is rotated in the vertical direction about the support shaft 13, The ground leveling body 14 having the pipe body 18 is, for example, pulled up from the position shown by the solid line in FIG. 1 to the position shown by the chain line, and the cultivating rotary 5 and the ground leveling body 14 are moved in accordance with the raised height h. The upper space A between the ground leveling body 14 and the tilling rotary 5 is adjusted to a space corresponding to the increased soil volume.
Therefore, the cultivated soil is smoothly dropped along the soil guide plate portion 16 of the soil leveling body 14, and is sufficiently leveled by the leveling plate portion 15 below the soil guiding plate portion 16.

Then, by turning the operating rod 22 while watching the work condition while riding on the tractor, the ground leveling body 14 is vertically rotated about the support shaft 13, and the ground leveling body 14 serves as the cultivating rotary 5. The upper space A between is easily adjusted.

[Effect of device]

According to the present invention, the cover body covering the upper part of the tilling rotary is provided with a support shaft between the rear end portions of the left and right side plates of the top plate,
The ground leveling body arranged at the rear part of the tilling rotary has a pipe body rotatably connected to the upper end thereof by a hinge, and an interlocking piece protruding from an intermediate portion in the left-right direction of the pipe body, An operating rod for remote operation that rotatably supports a pipe body of the ground leveling body on a support shaft of the body in a vertical direction, and adjusts a space in an upper space between the tilling rotary and the ground leveling body on the connecting piece. The soil is placed between the tilling rotary and the soil leveling body by operating this operating rod and rotating the soil leveling body up and down about the spindle. The upper space that greatly affects the movement of the
In addition, it is possible to adjust the distance steplessly and reliably, so that it is possible to reliably prevent clogging between the tilling rotary and the ground leveling body, and to perform a sufficient leveling function in the ground leveling body. be able to. In addition, since the connecting part of the ground leveling body that pivotally supports the support shaft of the cover body is a pipe body, it is possible to smoothly perform the turning operation of the ground leveling body around the support shaft, and to prevent soil from attaching to the support shaft. Can be prevented. Furthermore, the upper space between the tilling rotary can be easily adjusted by rotating the leveling body in the vertical direction, so that the left and right hinges of the rear cover can be rotated and the set positions of the left and right hinges can be adjusted. The structure is simpler than the one in which the left and right fixing bolts for fixing are attached and detached, and the handling operation is easy and it can be provided at a low cost.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a cross-sectional view taken along the line aa in FIG. 3 of the tiller, FIG. 2 is a side view of the tiller, and FIG. FIG. 1 ... Machine frame, 5 ... Tillage rotary, 9 ... Cover body,
10 …… Top plate, 11 …… Side plate, 13 …… Spindle, 14 …… Solid body,
17 …… hinge, 18 …… pipe body, 19 …… interlocking piece, 22 ……
Actuating rod, A ... Upper space.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shoji Kanai 2949 Shiokawa, Maruko-cho, Oka-gun, Nagano Matsuyama Co., Ltd. (56) Bibliography Sho 57-201106

Claims (1)

[Scope of utility model registration request] 1. A machine frame, a cultivating rotary rotatably provided on the machine frame, a cover body provided on the machine frame for covering an upper part of the cultivating rotary, and a rear portion of the cultivating rotary. And a ground leveling body that is attached to the rear end of the cover body to level the cultivated soil, and the cover body has side plates at both left and right ends of the top plate, and rear ends of the left and right side plates. A support shaft is provided between the parts, and the ground leveling body has a pipe body rotatably connected to the upper end thereof by a hinge, and an interlocking piece is projectingly provided at an intermediate portion in the left-right direction of the pipe body, An operation for remote operation, in which a pipe body of the ground leveling body is rotatably supported in a vertical direction on a support shaft of a cover body, and the interlocking piece adjusts a space in an upper space between the tilling rotary and the ground leveling body. A tiller equipped with a rod attached.