JP6913400B2 - Agricultural work machine - Google Patents

Description

The present invention relates to an agricultural work machine in which soil does not easily adhere to an elastic body.

Conventionally, for example, the agricultural work machine described in Patent Document 1 below is known.

This conventional agricultural work machine includes, for example, a cultivated body for cultivating work, a ground leveling body for terraining work behind the cultivated body, an elastic body (cover member) for covering the surface of the cultivated body on the cultivated body side, and a ground leveling body. It is provided with a soil adhesion preventive body (ground leveling member) that covers the surface on the cultivated body side, and these elastic bodies and soil adhesion preventive bodies are fixed to the ground leveling body by individual fixing means.

Japanese Unexamined Patent Publication No. 2012-187027 (Fig. 5, etc.)

An object of the present invention is to provide an agricultural work machine in which soil does not easily adhere to an elastic body.

The agricultural work machine according to claim 1 includes a cultivated body for cultivating work, a ground leveling body for terraining work behind the cultivated body, a plate-shaped elastic body covering the surface of the cultivated body on the cultivated body side, and the above. The holding means provided on the ground leveling body and holding the upper end side of the elastic body so as to be movable is provided, and the holding means has a member attached to the ground leveling body, and the elastic body of the elastic body has a member attached to the member. The upper end side is movable.

The agricultural work machine according to claim 2 includes a cultivated body for cultivating work, a cultivated body for laying the ground behind the cultivated body, an elastic body for covering the surface of the cultivated body on the cultivated body side, and the cultivated body. The holding means is provided and includes a holding means for movably holding the upper end side of the elastic body, and the holding means has a member attached to the ground leveling body, and the upper end side of the elastic body moves with respect to the member. has become possible, the member attached to said leveling member includes a shaft portion threaded hole is formed, the elastic body has a shank hole portion on the upper end side, the elastic member The shaft portion is inserted into the shaft portion hole portion of the above, and a bolt is screwed into the screw hole portion.

The agricultural work machine according to claim 3 includes a cultivated body for cultivating work, a ground leveling body for terraining work behind the cultivated body, and an elastic body for preventing soil adhesion that covers the surface of the cultivated body on the cultivated body side. The holding means provided on the ground leveling body and movably holds the upper end side of the elastic body, the holding means has a member attached to the ground leveling body, and the elasticity with respect to the member. The upper end side of the body is movable.

According to the present invention, there is an effect that soil does not easily adhere to the elastic body.

It is a side view of the agricultural work machine which concerns on 1st Embodiment of this invention. Same as above. It is a plan view of an agricultural work machine. It is a figure which shows the ground leveling body of the agricultural work machine as above, (a) is a side view, (b) is a plan view. It is a side view partial cross-sectional view of the same farm work machine. It is a figure which shows the ground leveling body of the agricultural work machine which concerns on 2nd Embodiment of this invention, (a) is a side view, (b) is a plan view. It is a side view partial cross-sectional view of the same farm work machine. It is a side view partial sectional view of the agricultural work machine which concerns on 3rd Embodiment of this invention. It is a side view partial sectional view of the agricultural work machine which concerns on 4th Embodiment of this invention. It is a side view partial sectional view of the agricultural work machine which concerns on 5th Embodiment of this invention. It is a side view partial sectional view of the agricultural work machine which concerns on 6th Embodiment of this invention. It is a partial side view of the agricultural work machine which concerns on 7th Embodiment of this invention. It is a side view near the upper end side of the rubber cover plate of the agricultural work machine of the same as above. It is a partial side view of the agricultural work machine which concerns on 8th Embodiment of this invention. It is a partial side view of the agricultural work machine which concerns on 9th Embodiment of this invention. It is a partial side view of the agricultural work machine which concerns on the tenth embodiment of this invention.

The first embodiment of the present invention will be described with reference to FIGS. 1 to 4.

In FIGS. 1 and 2, reference numeral 1 denotes a farming machine, which is connected to, for example, the rear part of a tractor (not shown) which is a traveling vehicle, and the traveling of the tractor moves the field forward (in the direction of travel). While doing the cultivating land preparation work.

The agricultural work machine 1 includes a machine body 2 detachably connected to a three-point link (agricultural work machine elevating support device) at the rear of a tractor (not shown).

The airframe 2 has a mission case portion 4 in which an input shaft 3 in the front-rear direction is projected toward the front in a central portion in the left-right direction. The input shaft 3 is connected to the PTO shaft of the tractor via a power transmission means such as a joint, and rotates when the PTO shaft rotates to input power from the tractor side to the agricultural work machine 1 side.

The inner end portions of the frame pipe portion 5, which is the main frame portion having a longitudinal shape in the left-right direction and forming a cylindrical shape, are attached to the left and right side portions of the mission case portion 4. The upper part of the chain case portion 6 which is a transmission case portion is attached to the left end portion which is the outer end portion of the frame pipe portion 5 on the left side (left side in the traveling direction), and the outer end of the frame pipe portion 5 on the right side (right side in the traveling direction). The upper part of the plate-shaped bracket portion 7 is attached to the right end portion which is a portion.

Then, between the lower part of the chain case portion 6 and the lower part of the bracket portion 7 that are separated from each other on the left and right sides, a tiller 8 that performs tillage work while rotating in a predetermined direction, that is, for example, in the downcut direction is erected rotatably. Has been done. That is, the machine body 1 is provided with a cultivating body 8 for cultivating work so as to be rotatable.

The tillage body 8 has a tillage shaft 9 in the left-right direction that rotates in a predetermined direction by power from the input shaft 3 side, and a plurality of tillage claws 10 attached to the tillage shaft 9. The tiller 8 is not limited to the one that rotates in the downcut direction to perform the tilling work, and may be the one that rotates in the upcut direction to perform the tilling work.

Further, above the tillage body 8, a plate-shaped tillage cover body 11 that covers the upper portion of the tillage body 8 is arranged. The tillage cover body 11 has, for example, a curved plate shape that is convex upward, and is fixed to the machine body 2. The surface (lower surface) of the tillage cover body 11 on the tillage body 8 side is covered with, for example, a rubber plate 12 which is an elastic plate. That is, the rubber plate 12 is attached to the lower surface side of the tillage cover body 11.

Then, at the rear end of the tillage cover body 11, a plate-shaped ground leveling body (flat plate) 16 that performs ground leveling work behind the tiller body 8 is centered on the rotation center axis (rotation fulcrum) X in the left-right direction. It is provided so as to be rotatable in the vertical direction. That is, the upper end portion of the ground leveling body 16 is rotatably attached to the rear end portion of the tillage cover body 11 via hinges 17 which are a plurality (for example, three) connecting members.

Further, as shown in FIGS. 3 and 4, the agricultural work machine 1 has a single plate-shaped elastic deformable elasticity for preventing soil adhesion, which covers the upper part of the surface (front surface) of the ground leveling body 16 on the cultivated body 8 side. The rubber cover plate 21 which is the body, the stainless plate 22 which is a single plate-shaped soil adhesion prevention body covering the lower part of the surface (front surface) of the ground leveling body 16 on the cultivated body 8 side, and these rubber cover plate 21 and the stainless plate It is provided with a common fixing means 23 for simultaneously tightening and fixing 22 to the fixed receiving portion 15 at the intermediate portion in the vertical direction of the ground leveling body 16.

That is, a low-adhesion plate-like member (rubber cover plate 21 and stainless steel plate 22) to which soil is less likely to adhere to the ground leveling body 16 can be attached to and detached from the ground leveling body 16 so as to cover the entire front surface of the ground leveling body 16 (the rubber cover plate 21 and the stainless steel plate 22). It is attached to (replaceable). Therefore, the cultivated soil does not come into direct contact with the surface of the ground leveling body 16 on the cultivated body 8 side.

A gap 20 having a predetermined size for elastically deforming the rubber cover plate 21 is formed between the rubber cover plate 21 and the front surface of the ground leveling body 16. That is, the rubber cover plate 21 is attached to the ground leveling body 16 so that a gap 20 for elastic deformation is formed between the rubber cover plate 21 and the front surface of the ground leveling body 16. On the other hand, the stainless steel plate 22 is attached to the ground leveling body 16 so as to be in direct contact with the front surface of the ground leveling body 16 in a plane shape.

Here, the rubber cover plate 21 has a lower end side fixed portion 31 on the lower end side, and the lower end side fixed portion 31 is formed with a plurality of holes 32 arranged at intervals in the left-right direction. .. The upper end of the rubber cover plate 21 is releasably fixed to the upper end of the leveling body 16 by the fixing means 24.

The stainless steel plate 22 has an upper end side fixed portion 36 on the upper end side, and a plurality of the upper end side fixed portions 36 are arranged at intervals in the left-right direction so as to correspond to the holes 32 of the rubber cover plate 21. Hole 37 is formed. The stainless steel plate 22 has a curved plate portion 38 having a C-shaped cross section bent upward in a semicircular shape on the lower end side, and the curved plate portion 38 is releasably fitted to the lower end portion of the ground leveling body 16. It is matched.

The common fixing means 23 includes, for example, a plurality of bolts (counter bolts) 41, a plurality of nuts 42, a plurality of washers 43, a plurality of annular members, a collar member (gap maintenance member) 44, and a plurality of pressing members (a plurality of pressing members). Bolt head receiving member) 45.

The collar member 44 forms a circular ring having a hole 46 which is a bolt insertion hole, and is a gap for maintaining a gap 20 between the surface of the ground leveling body 16 on the tillage body 8 side and the rubber cover plate 21. It is a maintenance member. The plate-shaped fixed receiving portion 15 of the ground leveling body 16 is formed with a plurality of hole portions 47 arranged at intervals in the left-right direction.

Then, the bolt 41 is the hole 32 of the fixed portion 31 on the lower end side of the rubber cover plate 21, the hole 46 of the collar member 44 which is the gap maintaining member, the hole 37 of the fixed portion 36 on the upper end side of the stainless plate 22, and the ground leveling. It is inserted into the hole 47 and washer 43 of the fixed receiving portion 15 of the body 16, and the nut 42 is screwed into the inserted bolt 41, so that the lower end side fixed portion 31 and the stainless plate 22 of the rubber cover plate 21 are screwed. The fixed portions 36 on the upper end side of the above surface face each other in the front-rear direction and are simultaneously tightened and fixed to the fixed receiving portion 15 of the ground preparation body 16.

That is, by the common fixing means 23 common to the rubber cover plate 21 and the stainless plate 22, the lower end side fixed portion 31 and the upper end side fixed portion 36 facing each other in the front-rear direction can be released from the ground leveling body 16 at the same time. It is fixed.

Then, in this fixed state, the plurality of color members 44 arranged at intervals in the left-right direction are sandwiched between the lower end side fixed portion 31 on the front side and the upper end side fixed portion 36 on the rear side, and both of them are fixed. It is located between the portions 31 and 36, and a gap 20 is formed and maintained by the collar member 44. Further, the upper end side fixed portion 36 of the stainless plate 22 is sandwiched between the collar member 44 and the fixed receiving portion 15 of the leveling body 16. Further, the head of the bolt 41 is located in the hole 32 of the fixed portion 31 on the lower end side of the rubber cover plate 21 and does not project forward from the rubber cover plate 21. Therefore, the head of the bolt 41 Soil does not grow from the part. Further, since there is a gap 50 between the collar members 44 adjacent to each other, the soil that has entered the gap 20 escapes through the gap 50 (see FIG. 3B).

A back plate 51 is erected on the rear surface of the ground leveling body 16, and a ground pressure adjusting means 52 for adjusting the ground pressure of the ground leveling body 16 is provided between the back plate 51 and the machine body 2. .. Further, a gauge wheel 53 for adjusting the tillage depth of the tillage body 8 is provided at the front portion of the machine body 2.

Next, the operation and the like of the agricultural work machine 1 will be described.

When the agricultural work machine 1 is connected to the rear part of the tractor and the tractor is driven forward, the cultivated body 8 performs the cultivating work while the entire agricultural work machine 1 moves forward together with the tractor, and the ground leveling body is prepared behind the cultivated body 8. 16 does the ground leveling work.

Here, for example, when it becomes necessary to replace the rubber cover plate 21 and the stainless plate 22 due to wear or damage, the worker X releases the fixing by the fixing means 24 and the common fixing means 23, and then releases the fixing. The old rubber cover plate 21 and the stainless plate 22 are removed from the ground leveling body 16. After that, the worker X attaches and fixes the new rubber cover plate 21 and the stainless plate 22 to the leveling body 16 by using the fixing means 24 and the common fixing means 23.

Then, according to the agricultural work machine 1, the rubber is provided with the common fixing means 23 for simultaneously fixing the lower end side fixed portion 31 of the rubber cover plate 21 and the upper end side fixed portion 36 of the stainless plate 22 to the ground preparation body 16. Compared to the configuration in which the cover plate 21 and the stainless plate 22 are fixed to the ground preparation body 16 by individual fixing means, the number of parts is reduced, the configuration can be simplified, and the rubber cover plate 21 and the stainless plate can be simplified. The replacement work of 22 is also easy.

Further, since the common fixing means 23 has a collar member 44 as a spacer member for maintaining a gap 20 between the surface of the ground leveling body 16 on the tillage body 8 side and the rubber cover plate 21, for example, to maintain the gap 20. It is not necessary to separately provide the members of the above, and the configuration can be simplified.

Next, a second embodiment of the present invention will be described with reference to FIGS. 5 and 6.

The common fixing means 23 of the agricultural work machine 1 according to the second embodiment is a bar member (gap maintenance member) which is one longitudinal member having a longitudinal shape in the left-right direction and a plate shape instead of the plurality of collar members 44. ) Have 55.

The bar member 55 has an elongated plate shape having holes 56 (corresponding to holes 46 of the collar member 44) which are a plurality of bolt insertion holes arranged at intervals in the left-right direction which is the longitudinal direction. , A gap maintaining member that maintains a gap 20 between the surface of the ground leveling body 16 on the cultivated body 8 side and the rubber cover plate 21. The length dimension of the bar member 55 in the longitudinal direction is the same as the length dimension in the left-right direction of the ground leveling body 16 (including substantially the same), and the structure is such that soil does not enter the gap 20 between the ground leveling body 16 and the rubber cover plate 21. It has become. The other configurations are basically the same as those of the first embodiment.

According to the agricultural work machine 1 according to the second embodiment, the number of parts is smaller than that of the configuration of the first embodiment, and the configuration can be further simplified. The number of bar members 55 is preferably one, but it may be divided into a plurality of bar members 55.

Next, a third embodiment of the present invention will be described with reference to FIG.

The common fixing means 23 of the agricultural work machine 1 according to the third embodiment does not have the nut 42 and the washer 43, and instead of the hole portion (stupid hole portion) 46, the screw hole portion (hole portion having a screw groove) ) 57 is formed on the bar member 55. Further, the bar member 55 having the screw hole portion 57 is fixed to the front surface of the fixed receiving portion 15 of the ground leveling body 16 by welding or the like. Therefore, the upper end side fixed portion 36 of the stainless plate 22 is sandwiched between the bar member 55 and the lower end side fixed portion 31 of the rubber cover plate 21. The other configurations are basically the same as those of the first embodiment.

According to the agricultural work machine 1 according to the third embodiment, the number of parts is further smaller than that of the configuration of the first embodiment, and the configuration can be further simplified. Although not shown, for example, a plurality of collar members 44 having screw holes may be fixed to the front surface of the ground leveling body 16 by welding or the like.

Further, for example, as in the fourth embodiment shown in FIG. 8, the front-rear relationship between the two fixed portions 31 and 36 that overlap each other is reversed, and the lower end side fixed portion 31 of the rubber cover plate 21 is attached to the bar member ( The color member 44 may be used) 55 and the fixed portion 36 on the upper end side of the stainless plate 22 may be sandwiched.

Further, for example, as in the fifth embodiment shown in FIG. 9 and the sixth embodiment shown in FIG. 10, the bolt 41 and the nut 42 are used without using the gap maintaining member (color member 44, bar member 55). , The common fixing means 23 including the washer 43 and the pressing member 45 may simultaneously fix both the fixed portions 31, 36 that overlap each other to the ground leveling body 16. Although not shown, for example, the nut 42 may be fixed to the ground leveling body 16 by welding or the like, or a screw hole portion may be formed in the ground leveling body 16.

Further, FIGS. 11 and 12 show a seventh embodiment of the present invention.

The agricultural work machine 1 according to this embodiment includes a holding means 61 for holding the upper end side of the rubber cover plate 21 which is an elastic body so as to be movable in the front-rear direction (including the substantially front-back direction) with respect to the ground leveling body 16. The holding means 61 is provided on the upper end side of the ground leveling body 16.

The holding means 61 is covered by the rear end portion of the rubber plate 12, which is an elastic plate attached to the lower surface side of the tillage cover body 11 that covers the upper portion of the tillage body 8.

Here, the holding means 61 has a stop pin 62 fixed to the upper end side of the ground leveling body 16 by welding or the like, and a screw hole portion 64 is formed in the shaft portion 63 of the stop pin 62. A shaft hole 65 is formed on the upper end side of the rubber cover plate 21.

The shaft portion 63 of the stop pin 62 is inserted into the shaft portion hole portion 65 of the rubber cover plate 21, and the bolt 66 is screwed into the screw hole portion 64, so that the upper end side of the rubber cover plate 21 is a double washer 67, It is possible to move between 68 along the outer peripheral surface of the shaft portion 63 of the stop pin 62. The separation distance between the ground leveling body 16 and the rubber cover plate 21 is, for example, 3 mm to 30 mm.

Then, according to the seventh embodiment, since the upper end side of the rubber cover plate 21 moves with respect to the ground leveling body 16, soil is hard to adhere to the rubber cover plate 21, and even if it adheres, it is easy to fall off. Further, since the holding means 61 is covered by the rubber plate 12 on the tillage cover body 11 side, it is difficult for soil to adhere to the bolts 66 and the like of the holding means 61.

Note that, for example, as in the eighth embodiment shown in FIG. 13, the holding means 61 may not be covered by the rubber plate 12 on the tillage cover 11 side.

Further, for example, as in the ninth embodiment shown in FIG. 14 and the tenth embodiment shown in FIG. 15, the rubber cover plate 21 is used by using the common fixing means 23 including the collar member 44 which is a gap maintaining member. There may be a gap 20 on the upper end side and the lower end side of the. That is, in the embodiment of FIGS. 14 and 15, a gap 20 is formed substantially entirely between the ground leveling plate 16 and the rubber cover plate 21. Therefore, soil does not easily adhere to the rubber cover plate 21, and even if it adheres, it easily falls off. For example, the bar member 55 may be used instead of the color member 44.

In any of the above embodiments, the common fixing means may be, for example, a pin or the like instead of a bolt.

Further, the elastic body is not limited to the rubber such as the rubber cover plate 21, and may be made of resin, metal, or the like. Similarly, the soil adhesion preventive body is not limited to the metal such as the stainless steel plate 22, and may be made of rubber, resin, or the like.

Although some embodiments of the present invention and variations thereof have been described, it is also possible to appropriately combine the embodiments and modifications thereof without departing from the gist of the present invention.

1 Agricultural work machine 8 Tillage body
11 Tillage cover body
12 Rubber plate, which is an elastic plate
16 Leveling body
20 gap
21 Rubber cover plate that is an elastic body
22 Stainless steel plate that prevents soil adhesion
23 Common fixing means
31 Fixed part on the lower end side
36 Fixed part on the upper end side
44 Color member that is a gap maintenance member
46, 56 Holes that are bolt insertion holes
55 Bar member that is a gap maintenance member
61 Holding means

Claims (3)

A tiller body for tilling work and
A ground leveling body that performs ground leveling work behind this tillage body,
A plate-shaped elastic body covering the surface of the ground leveling body on the cultivated body side,
The ground leveling body is provided with a holding means for holding the upper end side of the elastic body so as to be movable.
The holding means is a farm work machine having a member attached to the ground leveling body, and the upper end side of the elastic body is movable with respect to the member. A tiller body for tilling work and
A ground leveling body that performs ground leveling work behind this tillage body,
An elastic body that covers the surface of the ground leveling body on the cultivated body side,
The ground leveling body is provided with a holding means for holding the upper end side of the elastic body so as to be movable.
The holding means has a member attached to the ground leveling body, and the upper end side of the elastic body is movable with respect to this member.
Wherein attached to said leveling member includes a shank screw hole portion is formed,
The elastic body has a shaft portion hole on the upper end side, and has a shaft portion hole.
Wherein the shaft portion is inserted for the shank hole, agricultural working machine you characterized in that the bolt is screwed into the threaded hole of the elastic body. A tiller body for tilling work and
A ground leveling body that performs ground leveling work behind this tillage body,
An elastic body for preventing soil adhesion that covers the surface of the ground leveling body on the cultivated body side,
The ground leveling body is provided with a holding means for holding the upper end side of the elastic body so as to be movable.
The holding means has a member attached to the ground leveling body, and the upper end side of the elastic body is movable with respect to this member.
Agricultural work machine characterized by that.

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