JPH0135602Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a cover device for a rotary working machine for cultivating and crushing soil.

[Technical background of the invention and its problems]

Conventionally, this kind of rotary work machine has been equipped with, for example, a tilling section cover disposed on the upper part of the rotary work body, and an auxiliary cover made of a rubber plate between the back side of the tilling section cover and the upper part of the rotary work body. A fixed structure is known.

However, in the case of this structure, the auxiliary cover is fixed, so the soil removal performance is poor and tilled soil may adhere to and accumulate on the auxiliary cover, and if the rotary work body is of the forward/reverse switching type, the crushed soil There are problems with soil removal and soil removal. In other words, when the rotary work body is rotated in the up-cut direction, tilled soil does not accumulate in the front part in the direction of travel, resulting in poor soil crushability, and when the rotary work body is rotated in the down-cut direction, the tilled soil does not accumulate in the front part in the direction of travel, resulting in poor soil crushing. There are problems such as the unsmooth removal of tilled soil.

[Purpose of invention]

This idea was created with these points in mind.
A movable cover body made of an elastic member is disposed between the tilling section cover and the rotary work body so as to be movable and one end can be freely adjusted in position, and this movable cover body prevents soil from adhering to the movable cover body. In addition, when the rotary work body is driven in forward and reverse directions, the mounting position can be variably adjusted accordingly to improve the crushability and soil removal performance of tilled soil. .

[Summary of the idea]

The cover device for a rotary work machine of the present invention includes a main body frame, a rotary work body rotatably suspended horizontally on the main body frame, a tilling section cover covering the upper part of the rotary working body, and a tilling section cover. side plates on both sides and having attachment position adjustment parts opposite to one end; one end is connected to the attachment position adjustment parts of the side plates on both sides, the other end is free, and the whole covers the above-mentioned tillage section. a movable cover body made of an elastic member disposed between the back surface of the rotary work body and the upper part of the rotary work body, and a tractor connection that is detachably attached to the body frame via an attachment/detachment means and whose attachment position can be changed back and forth. The movable cover body is provided with a hitch mechanism for variably adjusting the mounting position of one end of the movable cover body in accordance with the traveling direction of the rotary work body.

[Example of idea]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a main body frame, and a transmission 3 having an input shaft 2 is provided at an intermediate portion of the main body frame 1.

Further, a chain case 4 and a bracket (not shown) as the main body frame are fixed at the upper part to both ends of the main body frame 1, and a tilling shaft 5 and a plurality of tillers are connected between the chain case 4 and the lower end of the bracket. A rotary work body 7 consisting of claws 6 is rotatably suspended horizontally at both ends of the tilling shaft 5.

Next, a tilling section cover 8 covering the upper part of the rotary work body 7 is fixed between the chain case 4 and the bracket, and the tilling section cover 8 is located on both sides of the tilling section cover 8 and is attached to the side of the rotary work body 7. Side plates 9 on both sides covering the sides are integrally provided on the front and rear of the chain case 4 and the bracket. In addition, long grooves 11 serving as attachment position adjusting portions are formed in the rear side portions of the rear plate portions 10 of the side plates 9 on both sides, facing each other. The long grooves 11 on both sides have locking portions 12 and 13 formed at the upper and lower portions, and a curved portion 14 is formed upward from the upper locking portion 12 between the upper and lower locking portions 12 and 13. An arcuate guide portion 15 that slightly bulges rearward is connected therebetween. Further, the upper end of the screen 26 is rotatably attached to the front end of the tilling section cover 8 with a support shaft 27, and the locking pin 28 of this screen 26 is attached to the locking hole 29 formed at the top and bottom of the tilling section cover 8. It is designed to be selectively inserted into one of the Although not shown, a stopper mechanism is provided in the middle of the arcuate guide portion 15 if necessary.

Next, 16 is a movable cover body made of an elastic member such as a rubber plate, and a horizontal rod 18 is rotatably attached to one end of this movable cover body 16 via a mounting bracket 17. A portion 19 projects outward in the width direction of the mounting fitting 17, and retaining rings _19a are removably attached to both ends 19. The movable cover body 16 is disposed between the back surface of the cultivating section cover 8 and the rotary work body 7, and has both ends 1 of the horizontal rod 18 at one end thereof.
9 is movably inserted into the long groove 11, and retaining rings _19a are attached to both ends 19 to prevent it from coming out, and the free end 20 of the other end of the movable cover body 16 is has been extended to

Further, a hitch mechanism 21 is attached to the main body frame 1 via an attachment/detachment means 22 so that the attachment position can be freely changed back and forth. A connecting portion 23 and a gauge wheel 24 are attached to the hitch mechanism 21, and a leveling plate 25 is elastically supported at the rear portion of the hitch mechanism 21.

In this structure, as shown in FIG. 1, when the rotary work body 7 is driven in the down cut direction, both ends 19 of the horizontal rods 18 of the movable cover body 16 are inserted into the long grooves of the side plates 9 on both sides. 11 at the upper locking portion 12 . This results in
One end of the movable cover body 16, that is, the mounting portion side to which the horizontal rod 18 is attached, is set at a higher position than the ground, and the front side of the other end extends downward by that much. Further, the screen 26 is lifted upward, and the lock pin 28 is inserted into the upper locking hole 29 to lock it, thereby holding the screen 26 in a substantially horizontal position.

Then, when the machine is pulled by a tractor and the rotary work body 7 is interlockedly driven in the downcut direction, the field is successively cultivated as the rotary work body 7 moves forward. In this case, since the rear part of the movable cover body 16 in the traveling direction is lifted upward, the movable cover body 16 smoothly moves the tilled soil backward without accumulating on the rear part of the rotary work body 7. This is easily leveled one after another by the leveling plate 25.

Further, as shown in FIG. 2, the rotary work body 7
When driving the movable cover body 16 in the up-cut direction, both ends 19 of the horizontal rod 18 of the movable cover body 16 are locked from the upper locking part 12 to the lower locking part 13 in the long grooves 11 of the side plates 9 on both sides. As a result, one end of the movable cover body 16, that is, the mounting portion side to which the horizontal rod 18 is attached, is pulled down to a position close to the ground, and the rear side of the other end is pulled upward by that amount. Also, pull down the screen 26,
A locking pin 28 is inserted into the lower locking hole 29 to lock it and hold the screen 26 in its operative state. Furthermore, the hit mechanism 21 equipped with the leveling plate 25 and the gauge wheel 24 is separated from the main body frame 1, and the hit mechanism 21 is reversed and set on the main body frame 1 again, as shown in FIG. are connected together by the attachment/detachment means 22. Then, when the machine is towed by a tractor and the rotary work body 7 is driven in conjunction with the rotary work body 7 in the up-cutting direction, the field is successively cultivated as the rotary work body 7 moves forward. In this case, the front part of the movable cover body 7 in the direction of movement is supported in a downwardly movable state, so that it can be moved up and down by the movable cover body 7 and moved by the rotary work body 7. The tilled soil accumulates in the front part, and as the rotary work body 7 rotates, this accumulated tilled soil is further lifted and crushed and discharged to the rear. Large soil clods are further crushed by the screen 26 and smoothly discharged backward, and then easily leveled by the leveling plate 25.

In the case of the embodiment shown in FIGS. 1 and 2, one end of the movable cover body 16 is movably engaged with the long groove 11, and the other end is a free end between the tilling section cover 8 and the rotary work body. Since the movable cover body 16 is interposed between the movable cover body 16 and the movable soil 7, the movable cover body 16 has the elasticity of the movable cover body 16. This prevents soil from accumulating.

Next, the movable cover body 16 may be supported by the structure shown in FIGS. 4 and 5, for example, in addition to the above embodiment. That is, the horizontal rod 18 is rotatably inserted into the mounting bracket 17 of the movable cover body 16, and the interlocking pieces 30 are protruded from opposite ends of the mounting bracket 17, and the tips of the interlocking pieces 30 on both sides are The engagement pin 31 projects outward.
In addition, engagement recesses 32 for engaging and disengaging both ends 19 of the horizontal rods 18 are formed in upper portions of the rear plate portions 10 of the side plates 9 on both sides, and the rear plate portions 10 are opened rearward.
An engagement groove 33 for engaging the engagement pin 31 is formed in the lower part of the engagement groove 33, and the engagement groove 33 is formed into a substantially heart shape having upper and lower locking portions 34, 35.
Further, an arcuate guide portion 36 is formed at the rear edge of the rear plate portion 10 between the upper and lower engagement recesses 32 and the engagement groove 33, and a stopper piece 37 is formed at the lower end of this arcuate guide portion 36. .

When the rotary work body 7 is driven in the down-cut direction, the interlocking piece 30 of the movable cover body 16 is inserted into the locking portion 34 at the lower part of the engagement groove 33.
while engaging the engaging pin 31 of the engaging recess 3.
2 and engage both ends 19 of the transverse rod 18 therein. Thereby, the same operation as in the previous embodiment is achieved.

When the rotary work body 7 is driven in the up-cut direction, the engaging pin 31 of the interlocking piece 30 of the movable cover body 16 is engaged in the locking portion 35 at the upper part of the engaging groove 33, and Horizontal rod 18
Both ends 19 of are removed from the engagement recess 32, and engaged on the stopper piece 37 of the arcuate guide portion 36 so as to be vertically movable. Thereby, the same operation as in the previous embodiment is achieved.

[Effect of idea]

According to the present invention, a movable cover body made of an elastic member is movably disposed between the tilling section cover and the rotary work body, and one end of the movable cover body can be freely adjusted in position. It is possible to reliably prevent soil from adhering to the movable cover body, and when the rotary work body is driven in forward and reverse directions, the mounting position of one end of the movable cover body can be adjusted according to the rotating direction of the rotary work body. can be variably adjusted, and at the set position of the movable cover body, the movable cover body reliably acts against the soil, thereby greatly improving the crushability and soil removal performance of tilled soil. Further, the mounting structure of the movable cover body is simple, its adjustment is easy, and manufacturing is also easy.

[Brief explanation of drawings]

Figures 1 and 2 are side views of the rotary work machine;
FIG. 3 is a perspective view of the cover device as described above, FIG. 4 is a side view of a part of the rotary working machine of another embodiment, and FIG. 5 is a perspective view of a part of the cover device as described above. 1... Body frame, 7... Rotary work body,
8... Cultivation part cover, 9... Side plate, 11... Long groove, 12, 13, 34, 35... Locking part, 15,
36... Arc-shaped guide part, 16... Movable cover body, 1
7...Mounting metal fittings, 18...Horizontal rod, 19...Both ends of the horizontal rod, 21...Hitch mechanism, 22... Attachment/detachment means, 32...Engagement recess, 33...Engagement groove.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A main body frame, a rotary work body rotatably suspended horizontally on the main body frame, a tilling section cover that covers the upper part of this rotary work body, and this tilling section cover. side plates on both sides and having attachment position adjustment parts opposite to one end; one end is connected to the attachment position adjustment parts of the side plates on both sides, the other end is free, and the whole covers the above-mentioned tillage section. a movable cover body made of an elastic member disposed between the back surface of the rotary work body and the upper part of the rotary work body, and a tractor connection that is detachably attached to the body frame via an attachment/detachment means and whose attachment position can be changed back and forth. A cover device for a rotary working machine, comprising a hitch mechanism for variably adjusting the attachment position of one end of the movable cover body in accordance with the direction of movement of the rotary working body. (2) A utility model registration request characterized in that the mounting position adjustment parts of the side plates on both sides have locking parts at the upper and lower parts, and are comprised of long grooves with arc-shaped guide parts between the upper and lower locking parts. A cover device for a rotary work machine according to scope 1. (3) The movable cover body has a horizontal rod at one end, and both ends of the horizontal rod are movably inserted into the long grooves of the side plates on both sides. A cover device for a rotary working machine according to item 1 or 2. (4) The mounting position adjustment parts of the side plates on both sides are formed by opening rearward engaging recesses in the upper part to engage and disengage both ends of the horizontal rod of the movable cover body, and in the lower part thereof, 2. A cover device for a rotary work machine according to claim 1, wherein the cover device is formed with an engagement groove for engaging an engagement pin of an interlocking piece protruding from a mounting bracket of the rotary working machine.