JP2541753Y2 - Rotary cover structure of rotary device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a rotary cover structure of a rotary device.

(B) Conventional technology Conventionally, a rotary device that performs tilling work has a main beam laid laterally behind a case support connected to a rear end hitch of a tractor, and a rotary case is vertically mounted on the beam, and A large number of tilling claws are rotatably attached to the lower end, and tilling work is performed with the same claws.

Further, a rotary cover is provided above the tilling claw, and a curved cover is fixed at a predetermined interval above the tilling claw to prevent scattering of the tilling.

(C) Problems to be solved by the invention However, the rotary cover of the rotary device described above is
When the deep tillage adjustment is performed because the distance from the tilling claw is constant, the amount of tilling cultivated by the tilling claw increases, so that the cultivating soil cannot be displaced smoothly. The pawl does not rotate smoothly, and has a disadvantage of lowering work efficiency.

In addition, there is a disadvantage that a mass of plowed soil accumulated between the rotary case and the rotary case falls on the plowed ground, and the ground becomes uneven.

(D) Means for solving the problem The main beam is laid horizontally on the rear part of the case support connected to the rear end hitch of the tractor, and a rotary case is suspended from the beam, and a number of tilling claws are provided at the lower end of the case. In a rotary device that is rotatably mounted, a rotary cover disposed above the tilling claw is provided rotatably around the front end of the rotary cover, and an elevating device is mounted on the cover, It is an object of the present invention to provide a rotary cover structure of a rotary device, wherein a distance between a rear portion of the cover and a cultivating claw is configured to be wide and narrow.

In the present invention, a rear cover for leveling tilled soil is rotatably connected to a rear portion of the rotary cover around the front end of the rear cover, and a tilting movement of the rear cover is provided between the rotary cover and the rear cagger. A rear wheel is provided at the rear of the rotary frame provided on the main beam. It is also characterized in that a deep tillage adjusting device for elevating and lowering the tail wheel is attached, and a rotary cover that is rotatable up and down around the front end is interlocked to the deep tillage adjusting device.

(E) Function and effect In the present invention, when performing the tillage work while performing the deep tillage adjustment with the rotary device, the interval between the rear portion of the rotary cover and the tillage claw can be positively adjusted by the lifting device. The above-mentioned interval can be optimally adjusted according to the cultivation depth and soil quality, and the cultivation of the cultivated soil between the rotary cover and the cultivation claw can be smoothly performed, and problems such as insufficient horsepower due to clogging of the cultivated soil can be prevented. At the same time, it is possible to eliminate the drop of the tilling soil on the ground, to tilling the ground as evenly as possible, and to improve tilling work efficiency.

In addition, according to the present invention, a rear cover for leveling tilled soil is rotatably connected around the front end of the rear cover to a rear portion of the rotary cover, and a tilting movement of the rear cover is provided between the rotary cover and the rear cover. By installing a sensor that detects the pressure, operating the lifting device based on the detection value of the sensor, and maintaining the tilting state of the rear cover constant, when the cultivation depth is increased or the expansion of the tilled soil is large Automatically raises the rear part of the rotary cover and lowers the rear part of the rotary cover by lowering the tillage depth or lowering the rear part of the rotary cover when the expansion of the cultivated soil is small, by automatically raising the rear part of the rotary cover. Can be adjusted to an optimum state according to the cultivation depth and soil quality.

In addition, a tail wheel is vertically installed at the rear of the rotary frame provided on the main beam, and a deep tillage adjusting device for lifting and lowering the tail wheel is attached. The deep tillage adjusting device is rotatable up and down around the front end. When the cultivation depth is adjusted while the structure is simple, the space between the rear part of the rotary cover and the cultivation claw is adjusted to the width suitable for the cultivation depth in conjunction with the adjustment of the cultivation depth by the interlocking connection of the rotary cover.

(F) Embodiment An embodiment of the present invention will be described in detail with reference to the drawings. In the overall side view of FIG. 1, A indicates a rotary device according to the present invention, and the rotary device A is a rear end hitch of a tractor B. A case support 2 is pivotally connected to the case support 2 in a detachable manner.

Note that S is a rotary device A provided at the rear of the tractor B.
3 shows a lifting device.

In FIG. 1, in the rotary device A, a gear case for operating a tilling claw is connected to a rear end of a case support 2, and a main beam 4 is laterally suspended from the case.

Further, a rotary case 6 is vertically installed at the left and right ends of the main beam 4, and a tilling shaft 7 is connected to the lower end of the case 6 so as to be freely rotatable in the left and right direction. The claw 8 is attached.

 Reference numeral 9 denotes a rear wheel of the tractor B.

Above the tilling claw 8, there is a curved rotary cover.
The cover 10 prevents the tilling claw 8 from scattering the tilling soil.

Further, a front end of a rear cover 11 for leveling tilled soil is rotatably attached to a rear end of the rotary cover 10 so that the rear end of the cover 11 can be moved up and down.

 Note that reference numeral 11a denotes a hanger rod of the rear cover 11.

In the center of the main beam 4, a frame attachment
A left and right rotary frames 13 extend rearward from the mounting body 12, and a tail wheel 14 or another working machine can be mounted on the rear end of the frame 13.

In the present invention, the rotary cover 10 of the rotary device A is configured to be able to move up and down, and its structure will be described below in detail.

That is, as shown in FIG. 2, a rotation fulcrum M is provided at the front end of the rotary cover 10, and the cover 10 is formed so as to be vertically rotatable about the rotation fulcrum M.

The rotation fulcrum M has a left and right bracket 15 extending forward from the rotary case 6 with a rotation shaft 16 provided at the distal end thereof, and a front end of the rotary cover 10 mounted on the coaxial 16 so as to be vertically rotatable.

An elevating device 17 is attached to the rotary cover 10, and the elevating device 17 is configured so that the interval between the rear part of the rotary cover 10 and the tilling claw 8 can be freely widened and narrowed around a rotation fulcrum M at the front end thereof. doing.

In this embodiment, the lifting device 17 is connected to the hydraulic cylinder 17a.
The base end of the hydraulic cylinder 17a is connected to the main beam 4 via a support 17-1 and the tip rod 17b is connected to the upper surface 10a of the rotary cover 10.

With such a configuration, even if the cultivation depth is increased or the cultivation of the cultivated soil of the cultivating claw 8 is increased due to the large expansion of the cultivated soil, the elevating device 17 is operated to raise the rear portion of the rotary cover 10, and By widening the interval, the cultivated soil can be smoothly displaced backward.

Further, a sensor 18 is mounted on the upper surface 10a of the rotary cover 10, and an operating rod 19 is interposed between the sensor 18 and the base end of the rear cover 11. The tilting movement of the rear cover 11 is detected, and the elevating device 17 is operated based on the detected value to control the rear cover 11 so that the tilt state is constant.

With such a configuration, the interval between the rear portion of the rotary cover 10 and the tilling claw 8 is automatically adjusted optimally according to the tilling depth and soil quality, and tilling work can be performed in an optimal state.

That is, when the tilling is deepened or the cultivation of the cultivated soil is large, the rear portion of the rear cover 11 is pushed up, so that the sensor 18 detects this and activates the lifting / lowering device 17, thereby raising the rear portion of the rotary cover 10. The distance between the rear portion of the rotary cover 10 and the tilling claw 8 can be automatically increased to improve the rejection of the tilling soil.

Conversely, when the cultivation depth is reduced or the cultivated soil is less expanded, the rear portion of the rear cover 11 is lowered.
Is detected, the elevating device 17 is actuated, and the rear portion of the rotary cover 10 is lowered to automatically reduce the interval between the rear portion of the rotary cover 10 and the tilling claw 8, so that the cultivated soil scattered from the tilling claw 8 is removed. Crushing can be promoted.

FIG. 2 shows another embodiment of the present invention, in which a tail wheel 14 is attached to the rear portion of the rotary frame 13 of the rotary device A, and the rotary device A is maintained at a constant tilling depth by the tail wheel 14. Things.

The rotary frame 13 has a base end rotatably mounted on the main beam 4 via the frame mounting body 12 so as to be vertically rotatable.
The deep tillage adjusting device 20 is attached to the rotary frame 13 so as to be rotatable up and down, and the tail wheel 14 is configured to perform deep tillage adjustment.

Reference numeral 21 denotes a handle of the deep tillage adjusting device 20, reference numeral 22 denotes a handle support, and reference numeral 23 denotes a screw rod.

Further, an interlocking rod 24 is attached to the rotary frame 13 and the rotary cover 10, and the interlocking rod 24 is configured to move the cover 10 up and down with the vertical rotation of the rotary frame 13.

As shown in FIG. 2, the interlocking rod 24 has its upper end pivotally connected to a middle part of the rotary frame 13 via a rotation pin 25.

The lower end of the interlocking rod 24 is located on the upper surface of the rotary cover 10.
It is pivotally connected to a bracket 26 projecting from 10a via a pivot pin 27.

The embodiment of the present invention as described above has the following effects.

In the present invention, when performing the tilling work while performing the deep tilling adjustment with the rotary device A, the tilling claw 8 is moved by the elevating device 17.
, The rotary cover 10 provided above the cover 10 can be rotated up and down about a pivot fulcrum M at the front end of the rotary cover 10 to increase the distance between the rear portion of the cover 10 and the tilling claw 8.

Therefore, since the rotary cover 10 is turned up and down to make the distance between the rear portion of the rotary cover 10 and the tilling claw 8 wide and narrow, even if the tilling claw 8 rotates with the tilling soil, the cover 10 is It is possible to smoothly repel tilled soil without accumulating in the interval with the rear part, and to improve the efficiency of tilling work.

In addition, by smoothly repelling the cultivated soil between the rotary cover 10 and the ground, it is possible to prevent the lump of the cultivated soil from dropping on the ground and to cultivate the ground as evenly as possible.

[Brief description of the drawings]

FIG. 1 is a side view of a rotary device according to the present invention, and FIG. 2 is an explanatory view showing another embodiment of the present invention. A: Rotary device B: Tractor 2: Case support 4: Main beam 6: Rotor case 10: Rotary cover 17: Lifting device

Claims (3)

(57) [Scope of request for utility model registration] 1. A main beam (4) is laid horizontally on a rear portion of a case support (2) connected to a rear end hitch of a tractor (B), and a rotary case (6) is suspended from the beam (4). A rotary device comprising a plurality of tilling claws (8) rotatably attached to a lower end of the case (6);
Is provided rotatably about the front end of the rotary cover (10), and the lifting device (17) is mounted on the cover (10).
A rotary cover structure of a rotary device, wherein a distance between a rear portion of the cover (10) and a tilling claw (8) is configured to be wide and narrow. 2. A rear cover (11) for leveling tilled soil is rotatably connected to a rear portion of the rotary cover (10) around the front end of the rear cover (11), and the rotary cover (10). A sensor (18) for detecting a tilting movement of the rear cover (11) is mounted between the rear cover (11) and the lifting / lowering device (17) is operated based on a detection value of the sensor (18). 2. The rotary cover structure for a rotary device according to claim 1, wherein the tilted state of (11) is maintained constant. 3. A main beam (4) is laid horizontally on a rear portion of a case support (2) connected to a rear end hitch of a tractor (B), and a rotary case (6) is suspended from the beam (4). In a rotary device having a large number of tilling claws (8) rotatably mounted at the lower end of the case (6), a tail wheel (14) is provided at the rear of a rotary frame (13) provided on the main beam (4). At the same time, a deep tillage adjusting device (20) for vertically raising and lowering the tail wheel (14) is attached, and a rotary cover (10) that can rotate vertically around the front end is attached to the deep tillage adjusting device (20). A rotary cover structure for a rotary device, wherein the rotary cover structure is interlocked.