JP2016220649A - Agricultural machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an agricultural machine capable of reducing a burden on an operator.SOLUTION: An agricultural machine 1 includes a machine body 11 connected to a tractor 2. The machine body 11 is provided with a tilling body and a ground leveling body 21. The agricultural machine 1 includes earthing-up bodies 40a and 40b for performing earthing-up work in front of the tilling body. A first support body 41 for supporting one of the earthing-up bodies 40a and 40b is attached to the machine body 11. A second support body 42 for supporting the other of the earthing-up bodies 40a and 40b is attached to the machine body 11. By interchanging the first support body 41 and the second support body 42 with each other, the position of the earthing-up bodies 40a and 40b can be adjusted.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an agricultural machine that can reduce a burden on an operator.

  DESCRIPTION OF RELATED ART Conventionally, the agricultural working machine described in the following patent document 1, for example is known.

  This conventional farm work machine includes a machine body connected to a traveling vehicle such as a tractor, a cultivating body provided in the machine body for plowing work, a leveling body for performing leveling work behind the cultivated body, and a front side of the cultivating body. It is equipped with left and right mulchers for mulching work.

JP2012-39981A

  However, the conventional farm work machine has a problem that, for example, when the distance between the left and right rear wheels of the traveling vehicle changes, the position adjustment of the mulcher is complicated by the worker, and the burden on the worker is large.

  This invention is made | formed in view of such a point, and it aims at providing the agricultural machine which can reduce a worker's burden.

  The agricultural machine according to claim 1 is a machine body connected to a traveling vehicle, a cultivating body that is provided on the machine body and performs a tilling work, a leveling body that performs a leveling work behind the cultivated body, and Left and right mulch bodies that perform mulch work in front, a first support body that is detachably attached to the machine body, and that supports any one of the mulch bodies, and is detachably attached to the machine body, A second support for supporting the other, and the position of the mulcher can be adjusted by replacing the first support and the second support.

  The farm work machine according to claim 2 is the farm work machine according to claim 1, wherein each of the first support body and the second support body has a mulch support body support part, and the mulch support body is relative to the mulch support body support part. It can be removed without tools.

  The agricultural machine according to claim 3 is the agricultural machine according to claim 1 or 2, wherein the body has a left attached part and a right attached part, and each of the left attached part and the right attached part is provided. Are formed with holes, and the same hole is used when either the first support or the second support is attached.

  The agricultural machine according to claim 4 is the agricultural machine according to any one of claims 1 to 3, wherein the first support and the second support are symmetrical.

  The farm machine according to claim 5 is the farm machine according to any one of claims 1 to 4, wherein the earth-moving body can be used even if it is turned upside down.

  According to the present invention, by replacing the first support body and the second support body, the position of the earthing body can be easily adjusted, so that the burden on the operator can be reduced.

It is a top view of the agricultural working machine which concerns on one embodiment of this invention. It is a top view of the state which removed the 1st and 2nd support body of the agricultural working machine same as the above. It is a side view of an agricultural working machine same as the above. It is sectional drawing of a side view of an agricultural working machine same as the above. (A) is a top view of a 1st support body, (b) is a top view of a 2nd support body. It is a partial top view after replacing the 1st support body and 2nd support body of an agricultural working machine same as the above. It is a top view of the agricultural working machine which concerns on other embodiment of this invention. It is a partial top view after replacing the 1st support body and 2nd support body of an agricultural working machine same as the above.

  An embodiment of the present invention will be described with reference to FIGS.

  In the figure, reference numeral 1 denotes an agricultural machine. The agricultural machine 1 is connected to, for example, a rear portion of a tractor 2 that is a traveling vehicle, and the tractor 2 moves forward to move forward in a traveling direction such as a paddy field or a field. It is a towing-type scraping device that performs farming work (cultivation leveling work etc.).

  The tractor 2 includes a tractor body that is a vehicle body (not shown). Left and right front wheels (not shown) are provided at the front of the tractor body, and left and right rear wheels (for example, tires) 3 are provided at the rear of the tractor body. Is provided. In addition, the rear wheel 3 which is a traveling part is not limited to a tire but may be a crawler or the like. In addition, a three-point link portion (agricultural work machine lifting support device) (not shown) is provided at the rear portion of the tractor body.

  Then, when the front wheels and the rear wheels 3 rotate based on the engine output mounted on the tractor body and the tractor 2 travels in the field, the rear surface of the field surface portion has a concave groove-shaped travel trace recess (groove groove). 5 is formed, and convex soil uplift portions 6 are formed on both sides of each running trace recess 5 (see FIG. 2).

  As shown in FIG. 1, the distance (outer width) between the left and right rear wheels 3 varies depending on the size of the tractor 2 and the like. For example, the distance between the left and right rear wheels 3 of a small tractor (one traveling vehicle) 2 is A, and the distance between the left and right rear wheels 3 of a slightly larger tractor (other traveling vehicle) 2 is B (> A).

  The farm work machine 1 includes a machine body 11 detachably connected to a three-point link part (not shown) at the rear part of the tractor 2.

  The airframe 11 has a three-point connecting portion 12 detachably connected to a three-point link portion of the tractor 2 on the front side. The airframe 11 has a mission case 13 with a front and rear input shaft projecting forward, at the center in the left-right direction. The input shaft is connected to the PTO shaft of the tractor 2 via a joint, rotates when the PTO shaft rotates, and inputs the power from the tractor 2 side to the agricultural machine 1 side.

  The left and right side portions of the mission case 13 are respectively attached to the inner end portions of the frame pipe 14 that is elongated in the left-right direction. An upper end portion of a box-shaped chain case 15 is attached to a left end portion which is an outer end portion of the left side frame pipe 14 on one side. An upper end portion of a plate-like bracket 16 is attached to a right end portion which is an outer end portion of the right side frame pipe 14 which is the other side.

  Between the lower part of the chain case 15 and the lower part of the bracket 16, a cultivating body (rotary) 18 for cultivating while rotating in a predetermined rotational direction by power from the input shaft side is installed. That is, the body 11 is rotatably provided with a cultivating body 18 for performing a cultivating operation.

  Further, the upper part of the cultivating body 18 is covered with a cultivating body cover (cultivating cover part) 20 of the airframe 11, and the rear end portion of the plate-like cultivating body cover 20 is leveled behind the cultivating body 18. A plate-shaped leveling body 21 is provided so as to be rotatable in the vertical direction.

  The leveling body 21 has a first leveling plate (level plate) 23 whose upper end is attached to the rear end of the tillage body cover 20 via a rubber cover 22. An upper end portion of a second leveling plate (rake) 24 is rotatably attached to a lower end portion of the first leveling plate 23, and an extended leveling plate (extended rake) 25 is attached to both left and right ends of the second leveling plate 24. Is provided so that it can be folded.

  Here, as shown in FIG. 2, the cultivating body cover 20 of the airframe 11 has a thin plate-like left attached portion 31 and a right attached portion 32, and these left attached portion 31 and right attached portion 32. Each of these is formed with a plurality of holes 33 for bolts, which are the same number (for example, three) and the same arrangement (for example, triangular arrangement), penetrating through the upper and lower surfaces. A rubber plate 34 is attached to the front end portion of the tillage body cover.

  The farm machine 1 is detachably attached to the left and right mulchers, that is, the left mulcher 40a and the right mulcher 40b, and the cultivator cover 20 of the fuselage 11 by means of a fixture 43. The first support 41 that supports one of the left mulcher 40a and the right burrow 40b, and the cultivating body cover 20 of the airframe 11 are detachably attached by the attachment 43, and the left mulcher 40a and the right mulcher 40 And a second support 42 that supports one of the bodies 40b. The fixture 43 is, for example, a bolt 43a and a nut 43b.

  And each position (each position regarding the left-right direction) of the left earth gathering body 40a and the right earth gathering body 40b is obtained by changing the left and right of the first support body 41 and the second support body 42 (replacement of the left and right with respect to the attached portions 31, 32). It is possible to adjust (change).

  That is, the first support body 41 is attached to either the left attached portion 31 or the right attached portion 32 of the tillage body cover 20, and the second support body 42 is attached to the left attached portion 31 or the right side of the tillage body cover 20. It is attached to either one of the attached parts 32. Then, the left earth gathering body 40a is attached to the one attached to the left attached part 31, and the right earth gathering body 40b is attached to the one attached to the right attached part 32. However, since the left and right mulchers 40a and 40b can be used even if they are upside down, when the mulchers 40a and 40b are used upside down, they are left and right reversed.

  Here, first, the earth gathering bodies 40a and 40b perform the earth gathering work for bringing the soil of the soil rising portion 6 formed on the field surface portion by the rear wheel 3 of the tractor 2 toward the traveling trace concave portion 5 side. These two mulch bodies 40a and 40b are symmetrical, are arranged so as to form a reverse substantially C shape in plan view, and are located near the rear of the rear wheel 3 on the outside of the tractor 2.

  As shown in FIG. 4 and the like, the mulchers 40a and 40b include a vertical mulch plate 46 bent at one intermediate point and a horizontal reinforcing plate 47 fixed to the mulch plate 46. Have.

  The mulching plate portion 46 includes a vertically extending mounting plate portion 48 positioned along the front-rear direction, and a mulching plate portion 49 that protrudes obliquely outward from the front end portion of the mounting plate portion 48. Has been.

  A plurality of, for example, four pin holes (vertical adjustment holes) 50 arranged at equal intervals in the vertical direction are formed in the upper portion of the mounting plate portion 48. Similarly, four pin holes 50 are formed in the lower part of the mounting plate portion 48. The lower pin holes 50 are used when the earthing bodies 40a and 40b are used upside down. It is.

  Next, the support bodies 41 and 42 that support the dirt gathering bodies 40a and 40b are plates for attaching the dirt gathering bodies 40a and 40b to the attached portions 31 and 32 of the tillage body cover 20 of the machine body 11. Both the supports 41 and 42 are symmetrical and are directly attached to the upper surface of the tiller cover 20.

  As shown in FIGS. 5A and 5B, the support bodies 41 and 42 are flat plate-shaped hexagonal mounting plate portions 51 that overlap the upper surface of the tillage body cover 20, and the upper surface of the mounting plate portion 51. And a support plate portion 52 that is a vertical mulcher support portion standing on the front side.

  The support plate portion 52 is constituted by, for example, two opposing plates 53 that are opposed to each other with a predetermined gap therebetween. One of the mounting plate portions 48 of the earthing plate portion 46 is interposed between the opposing plates 53. Part is inserted.

  In the mounting plate portion 51, a plurality of bolt holes 55 corresponding to the bolt holes 33 of the tiller body cover 20, for example, three triangular holes 55 are formed. Then, the bolts 43a of the fixture 43 from below are bolt holes 57 of the lower stopper plate (reinforcing plate that reinforces the tiller body cover 20) 56, bolt holes 33 of the tiller body cover 20, and bolts of the attachment plate portion 51. The mounting plate portion 51 is directly attached to the upper surface of the tiller body cover 20 by being inserted into the hole 55 and the nut 43b is screwed onto the inserted bolt 43a from above (see FIG. 4).

  In order to improve workability, for example, three bolts 43a may be fixed to the lower stopper plate 56 in advance by welding or the like.

  A plurality of, for example, two upper and lower pin holes 60 are formed in each counter plate 53 of the support plate portion 52. The stop pin 61 is inserted into the pin hole 50 of the mounting plate portion 48 of the earthing plate portion 46 and the pin hole 60 of the support plate portion 52, and an R pin (prevention pin) 62 is inserted into the inserted stop pin 61. Is attached, the attachment plate portion 48 of the earthing plate portion 46 is directly attached to the side surface of the support plate portion 52.

  For this reason, the mulcher 40a, 40b can be attached to and detached from the support plate portion 52 of the supports 41, 42 without a tool. Further, by changing the pin hole 50 into which the stop pin 61 is inserted, the mulcher 40a, 40b can be adjusted in the vertical position with respect to the support plate portion 52 of the support 41, 42. For example, although not shown in the figure, the structure 40a, 40b can be adjusted in the front-rear position with respect to the supports 41, 42, or the structure 40a, 40b can be adjusted in the left-right position with respect to the supports 41, 42. Also good.

  As shown in FIG. 5, the center line L of the bolt hole 55 of the mounting plate portion 51 is shifted laterally from the mounting plate portion 48 of the earthing plate portion 46 by a predetermined dimension a. For this reason, it is possible to adjust the positions of the mulchers 40a and 40b simply by exchanging the left and right supports 41 and 42.

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

  When the agricultural machine 1 is connected to the rear of the tractor 2 and the agricultural machine 1 is moved forward by the traveling of the tractor 2, the cultivator 18 performs the cultivating work, and the grading body 21 performs the grading work behind the cultivator 18. In the front of the left side of the tillage body 18, the left earth gathering body 40 a performs the earth gathering work, and in the right front of the tillage body 18, the right earth gathering body 40 b performs the earth gathering work.

  Here, for example, when the distance between the left and right rear wheels 3 of the tractor 2 is A, as shown in FIG. 1, the first support body 41 is attached to the left attached portion 31 of the tillage body cover 20, The left support body 40a is attached to the first support body 41, the second support body 42 is attached to the right attached portion 32 of the tillage body cover 20, and the right support body 40b is attached to the second support body 42.

  However, for example, when the distance between the left and right rear wheels 3 of the tractor 2 is increased to B because the tractor 2 is changed, the first support is provided as shown in FIG. By changing the left and right of the body 41 and the second support body 42 (left and right exchange), the respective positions of the left and right earthing bodies 40a and 40b are changed and adjusted.

  That is, the mulcher 40a, 40b is once removed from the supports 41, 42, and the supports 41, 42 are once removed from the tiller cover 20, and then the first support 41 is attached to the right attached portion 32 of the tiller cover 20. The right support body 40b is attached to the first support body 41, and the second support body 42 is attached to the left attached portion 31 of the tillage body cover 20, and the left support body is attached to the second support body 42. Install 40a.

  And according to the said agricultural working machine 1, according to the distance A and B between the left and right rear wheels 3 of the tractor 2, the left supporter 40a is simply replaced by the left and right of the first support 41 and the second support 42. Further, each position of the right dirt gathering body 40b can be adjusted (changed) easily and appropriately, so that the burden on the operator can be reduced.

  Further, since the mulchers 40a and 40b can be detached from the support plate 52 of the support bodies 41 and 42 without tools, the detachment bodies 40a and 40b can be easily detached from the support bodies 41 and 42 by the operator. The burden on the person can be further reduced.

  Furthermore, since the mulch body 40a, 40b can be used upside down, the left mulch body 40a can be used upside down and used for the right side, and the right mulch body 40b can be used upside down and used for the left side. The burden on the operator can be further reduced.

  Each of the left mounted portion 31 and the right mounted portion 32 of the tillage body cover 20 of the airframe 11 is formed with a plurality of, for example, three bolt holes (support mounting holes) 33, respectively, When attaching either the first support body 41 or the second support body 42 to the attached portion 31 or the right attached portion 32, the same three bolt holes 33 may be used. Not only can this be reduced, but the number of bolt holes 33 formed in the thin plate-shaped tiller cover 20 can be minimized, and the strength of the tiller cover 20 can be prevented from being reduced. It is.

  In the above-described embodiment, a configuration in which only a pair of left and right mulch bodies 40a and 40b is provided as a digging work means for backfilling the soil of the soil build-up portion 6 in the agricultural field into the traveling trace concave portion 5 has been described. However, in order to improve the flatness, for example, as shown in FIGS. 7 and 8, in addition to the mulchers 40a and 40b, the mulchers 40c that perform mulch work near the rear of the rear wheel 3 inside the tractor 2 are provided. A configuration with 40d may also be used.

  The mulcher 40c is supported by a third support 63 having the same shape as the second support 42, and this third support 63 is detachably attached to the left side of the central portion of the tiller body cover 20 in the left-right direction. It has been. Further, the mulching body 40d is supported by a fourth support 64 having the same shape as the first support 41, and this fourth support 64 can be attached to and detached from the right side of the central portion of the tiller body cover 20 in the left-right direction. Is attached.

  7 and 8, the positions of the mulchers 40a and 40b can be easily adjusted by switching the left and right of the first support body 41 and the second support body 42. The operational effects similar to those of the above-described one embodiment can be achieved, such as reducing the burden.

  Moreover, in such a structure, the earth-shifting body 40a, 40b, 40c is obtained by the left and right interchange of the first support body 41 and the third support body 63, and the left and right interchange of the fourth support body 64 and the second support body 42. , 40d position can be adjusted.

  The number of support attachment holes formed in each attachment portion 31, 32 of the cultivator cover 20 of the machine body 11 is not limited to three, and may be any, for example, one or two, There may be four or more.

  Further, for example, the support bodies (attachment bodies) 41 and 42 may be attached to and detached from the attached portions 31 and 32 of the tillage body cover 20 of the machine body 11 without using tools (for example, stop pins and R pins).

1 Agricultural machine 2 Tractor that is a traveling vehicle
11 Aircraft
18 Tillage
21 Leveling body
31 Left mounting part
32 Right side mounting part
33 holes for bolts
40a Left mulcher, which is a mulcher
40b Right sided body that is a sided body
41 First support
42 Second support
52 Support plate part that is a support body

Claims (5)

A fuselage connected to the traveling vehicle;
A plowing body that is provided on this machine and performs plowing work;
A leveling body that performs leveling work behind this tilled body,
Left and right mulch bodies that perform mulching work in front of the tillage body,
A first support that is detachably attached to the airframe and supports any one of the earthing bodies;
A second support that is detachably attached to the airframe, and supports the other side of the mulcher.
A farm working machine characterized by being able to adjust the position of the mulcher by replacing the first support and the second support. Each of the first support body and the second support body has a dirt gathering body support section,
The agricultural working machine according to claim 1, wherein the mulcher is detachable from the burrow supporter without a tool. The fuselage has a left mounted part and a right mounted part,
A hole is formed in each of the left attached portion and the right attached portion,
The agricultural machine according to claim 1 or 2, wherein the same hole is used when either the first support body or the second support body is attached. The agricultural machine according to any one of claims 1 to 3, wherein the first support and the second support are symmetrical. The agricultural working machine according to any one of claims 1 to 4, wherein the mulcher can be used even if it is turned upside down.

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