JP2018183111A - Agricultural machine - Google Patents

Abstract

The present invention provides an agricultural working machine capable of preventing adhesion of soil and facilitating maintenance work. A farming machine (1) includes a tilling body (3) for tilling work. The agricultural implement 1 includes an upper rubber plate 31 positioned above the tiller 3, a rear rubber plate 41 positioned above the rear of the tiller 3, and a stainless steel plate 42 positioned below the rear of the tiller 3. . These upper rubber plate 31, rear rubber plate 41, and stainless steel plate 42 are all detachable. [Selection drawing] Fig. 1

Description

  The present invention relates to an agricultural machine including a tillage body.

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

  The conventional agricultural machine includes a machine body connected to a traveling vehicle, a farming body that is rotatably provided on the machine body and that performs a tilling work, a leveling body that performs a leveling work behind the farming body, and an upper part of the farming body. An elastically deformable elastic plate covering the portion, a plurality of longitudinal support members that support the elastic plate from below, and a plurality of additional supports that support a portion of the elastic plate located between the support members from below And a member.

JP 2017-6082 A

  In recent years, in agricultural machines equipped with a tillage body, prevention (reduction) of soil adhesion to the periphery of the tillage body and the like has been further demanded, and maintenance work has become easier with the aging of workers and the like. Is also strongly sought after.

  This invention is made | formed in view of such a point, and it aims at providing the agricultural machine which can aim at prevention of soil adhesion and the simplification of a maintenance operation | work.

  A farming machine according to the present invention includes a cultivating body that performs tillage work, a first soil adhesion preventing member that is located above the cultivating body, a second soil adhesion preventing member that is located on the rear upper side of the cultivating body, A third soil adhesion preventing member located on the lower rear side of the tillage body, and the first soil adhesion preventing member, the second soil adhesion preventing member, and the third soil adhesion preventing member are all detachable. It is what.

  According to the present invention, soil adhesion can be prevented and maintenance work can be facilitated.

It is a side view of the agricultural working machine which concerns on the 1st Embodiment of this invention. It is a top view of an agricultural working machine same as the above. It is principal part sectional drawing of an agricultural working machine same as the above. It is a fragmentary sectional view of the leveling body of an agricultural working machine same as the above. (A) is a side view of a stainless steel plate, (b) is a partial rear view of a stainless steel plate. It is principal part sectional drawing of the agricultural working machine which concerns on the 2nd Embodiment of this invention. It is a fragmentary sectional view of the leveling body of the agricultural working machine which concerns on the 3rd Embodiment of this invention.

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

  In the figure, 1 is an agricultural machine, and this agricultural machine 1 is connected to the rear part of a tractor (not shown) which is a traveling vehicle, for example, and farming while moving the field forward (traveling direction) by traveling of the tractor, For example, plowing work is performed.

  The agricultural machine 1 includes a machine body 2 that is detachably connected to a three-point link part (agricultural machine lifting part) at the rear of the tractor, a tiller body 3 that is rotatably provided on the machine body 2 and performs a tilling work, and an aircraft body 2. And a leveling body 4 that is provided so as to be pivotable in the vertical direction around a horizontal axis (rotation fulcrum) 5 and that performs leveling work behind the tillage body 3.

  The airframe 2 has a three-point connecting portion 6 that is detachably connected to the three-point link portion of the tractor. The three-point connecting portion 6 is formed by a top pin 8 at the tip of the mast 7 and left and right lower pins 9. It is configured. The airframe 2 has an input shaft 10 that is detachably connected to the PTO shaft of the tractor via a joint. The input shaft 10 is rotatably provided on the mission case 11.

  The transmission case 11 has inner ends of the left and right frame pipes 12 attached thereto, the left frame pipe 12 has a chain case 13 attached thereto, and the right frame pipe 12 has a bracket 14 attached thereto. Between the chain case 13 and the bracket 14, a cultivating body 3 for cultivating while being rotated by power from the input shaft 10 side is installed. The cultivating body 3 has a cultivating shaft 16 that is a rotation axis in the left-right direction and a plurality of cultivating claws 17.

  On the other hand, the fuselage 2 has a front frame (hitch pipe) 21 that is longitudinal in the left-right direction and a plate-shaped rear frame 22 that is longitudinal in the left-right direction. The leveling body 4 is attached via a hinge 23 so as to be rotatable up and down. The leveling body 4 includes a leveling plate (leveling body main body) 18 having a curled portion 18a at a lower end portion, and side plates 19 fixed to both left and right ends of the leveling plate 18.

  Front mounting pins 26 are fixed to a plurality of positions on the front frame 21, intermediate mounting pins 27 are fixed to a plurality of positions on the front of the rear frame 22, and rear mounting pins are mounted on a plurality of positions on the rear of the rear frame 22. 28 is fixed. Each of the mounting pins 26, 27, 28 is formed with a screw hole portion into which the bolt 30 can be screwed.

  The agricultural machine 1 includes an upper rubber plate (flow traversal) 31 that is a first soil adhesion preventing member made of an elastically deformable elastic plate that is positioned above the tillage body 3 and covers the upper portion of the tillage body 3. A plurality of longitudinal support members (rubber receiving plates) 32 for supporting the upper rubber plate 31 from below and a portion of the upper rubber plate 31 located between the adjacent support members 32 are supported from below. A plurality of additional support members (rubber receiving washers) 33 are provided. The support member 32 and the additional support member 33 constitute a support means 34 that supports the lower surface of the upper rubber plate 31.

  Each support member 32 is detachably attached to the front attachment pin 26 and the rear attachment pin 28 by bolts 30. Similarly, each additional support member 33 is also detachably attached to the intermediate attachment pin 27 by bolts 30. .

  The upper rubber plate 31 is detachably attached to the attachment pins (attachment portions) 26, 27, and 28 of the airframe 2 by the support means 34. That is, the upper rubber plate 31 that is an elastic member can be attached to and detached from the machine body 2 and can be moved up and down, front and rear, and left and right by a predetermined amount with respect to the machine body 2 while being attached to the machine body 2.

  For this reason, during the work, the upper rubber plate 31 moves in an arbitrary direction, so that it is difficult for dirt to adhere to it. Further, at the time of maintenance such as replacement, the upper rubber plate 31 can be removed from the mounting pins 26, 27, 28 of the machine body 2 by removing the support means 34. The upper rubber plate 31 is formed with pin insertion holes 36 through which the mounting pins 26, 27, 28 are inserted.

  Further, the agricultural machine 1 is a rear rubber plate (upper rubber) 41 that is a second soil adhesion preventing member made of an elastically deformable elastic plate that is located on the upper rear side of the tillage body 3 and covers the upper rear portion of the tillage body 3. And a stainless steel plate (leveling member) 42 which is a metal third soil adhesion preventing member located on the lower rear side of the tillage body 3 and covering the lower rear side of the tillage body 3.

  The rear rubber plate 41 and the stainless steel plate 42 are detachably attached to the leveling plate 18 of the leveling body 4 by a plurality of attachment means 43 and 44. That is, the rear rubber plate 41 is detachably attached to the leveling plate 18 by the upper and lower attachment means 43, 44, and the stainless steel plate 42 is in a state where its upper end overlaps the lower end of the rear rubber plate 41 The lower rubber plate 41 and the rear rubber plate 41 are detachably attached to the leveling plate 18 by a lower attachment means (joint fastening means) 44. Moreover, the lower end portion of the stainless plate 42 is detachably fitted to the curled portion 18a of the leveling plate 18.

  The mounting means 44, which is a joint tightening means, includes, for example, a bolt (hexagon socket countersunk bolt) 46, a nut (cap nut) 47, a washer (spring washer) 48, a bolt head receiving member (washer) 49, and the like. (See FIG. 4). The bolt head 46a of the bolt 46 is housed inside the bolt head receiving member 49, and does not protrude to the surface side of the rear rubber plate 41. Further, the upper end portion of the stainless steel plate 42 is sandwiched between the rear rubber plate 41 and the leveling plate 18.

  As shown in FIG. 3, the upper end portion of the rear rubber plate 41 is a free end portion 41 a that can move back and forth by elastic deformation of the rear rubber plate 41, and the free end portion 41 a Located above the rear end. The tip of this free end 41a is located in the vicinity of the rotation fulcrum (shaft 5) of the leveling body 4 with respect to the machine body 2. In addition, the rear end portion of the upper rubber plate 31 is an inclined contact portion 31a (including a curved shape) that is positioned below the rear end, and this contact portion 31a is a free end portion 41a of the rear rubber plate 41. It is in contact with the base end part of and overlaps.

  Further, as shown in FIGS. 3 and 4, a gap 50 having a predetermined size exists between the rear rubber plate 41 and the leveling plate 18, and this gap 50 is an intermediate portion of the rear rubber plate 41. Then, it gradually becomes smaller downward. In the vicinity of the lower end of the rear rubber plate 41, the size of the gap 50 is the thickness of the stainless steel plate.

  Further, as shown in FIG. 5, the stainless steel plate 42 has at least six plate portions, and these six plate portions are directed from one end side (upper end side) to the other end side (lower end side) of the stainless steel plate 42. A first flat plate portion 51, a first curved plate portion 52, a second flat plate portion 53, a second curved plate portion 54, a third flat plate portion 55, and a third curved plate portion 56 are arranged in this order.

  The first curved plate portion 52 is a curved shape located along the leveling plate 18, and is positioned between the vertical first flat plate portion 51 and the inclined second flat plate portion 53 that is front and rear and low. doing. The third flat plate portion 55 has an inclined shape with front and rear heights, and is positioned orthogonal to the second flat plate portion 53. Further, the curled portion 18a of the leveling plate 18 is constituted by the three second curved plate portions (leveling arc-shaped portion) 54, the third flat plate portion (rigid linear shape portion) 55, and the third curved plate portion (fitting arc-shaped portion) 56. A fitting portion 58 having a C-shaped cross section that can be fitted to and detached from the housing is configured. Note that the radius of curvature of the arc-shaped third curved plate portion 56 is slightly smaller than the radius of curvature of the arc-shaped curled portion 18a (may be the same value).

  Further, a plurality of bolt insertion holes 59 for inserting the bolts 46 are formed in the first flat plate portion 51 at intervals in the left-right direction. Each bolt insertion hole 59 is, for example, a long hole having a longitudinal direction in the vertical direction. Therefore, the vertical position of the stainless steel plate 42 can be adjusted with respect to the leveling plate 18 by the gap between the bolt 46 and the bolt insertion hole 59. Therefore, the stainless steel plate 42 can be attached to the leveling plate 18 so that the third flat plate portion 55 reliably contacts the curled portion 18a.

  As shown in FIG. 1, a ground pressure adjusting means 61 for adjusting the ground pressure of the leveling body 4 is provided between the machine body 2 and the leveling body 4. The ground pressure adjusting means 61 includes a connecting rod 62, coil springs 63 and 64, a tumbler 65, and the like.

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

  When the farm equipment 1 is connected to the rear part of the tractor and the tractor is driven, the farming machine 1 moves forward together with the tractor, and the tilling claws 17 of the tillage body 3 perform the tilling work, and the leveling plate 18 of the leveling body 4 is moved. Leveling work with the stainless steel plate 42.

  Here, for example, when the soil adhesion prevention member (upper rubber plate 31, rear rubber plate 41, stainless steel plate 42), which is a consumable item, is replaced due to wear or damage, the operator must replace the old soil adhesion prevention member. Remove and attach a new one.

  That is, when the upper rubber plate 31 is replaced, the support means 34 is removed to remove the old upper rubber plate 31 from the machine body 2 and attach a new one. At the time of replacement of the rear rubber plate 41, the old rear rubber plate 41 is removed from the leveling body 4 by attaching the attachment means 43, 44, and a new one is attached. When replacing the stainless steel plate 42, the attaching means 44 is removed, and the old stainless steel plate 42 is removed from the leveling body 4 and a new one is attached.

  And according to the agricultural machine 1, while providing the upper rubber plate 31, the back rubber plate 41, and the stainless steel plate 42 which are the three soil adhesion prevention members located in the circumference | surroundings so that the tilling body 3 may be covered, the upper rubber plate 31 is provided. Can be attached to and detached from the machine body 2 and the rear rubber plate 41 and the stainless steel plate 42 can be attached to and detached from the leveling body 4, thereby preventing (reducing) soil adhesion to the surroundings of the tillage body 3. In addition, the maintenance work such as replacement of consumables can be facilitated.

  The stainless steel plate 42 has a shape including a first flat plate portion 51, a first curved plate portion 52, a second flat plate portion 53, a second curved plate portion 54, a third flat plate portion 55, and a third curved plate portion 56. Therefore, this stainless plate 42 can be easily and appropriately attached to the leveling body 4.

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

  The machine body 2 shown in FIG. 6 has a metal tillage portion cover 71 instead of the rear frame 22, and mounting pins 26, 27, and 28 are fixed to the tillage portion cover 71. The tiller portion cover 71 covers substantially the entire upper surface of the upper rubber plate 31. The contact portion 31a at the rear end portion of the upper rubber plate 31 is located behind the rear end of the tillage portion cover 71.

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

  In the leveling body 4 shown in FIG. 7, the lower end portion of the rear rubber plate 41 is sandwiched between the stainless plate 42 and the leveling plate 18. That is, the lower end portion of the rear rubber plate 41 is directly attached to the leveling plate 18 by the attaching means 44. The attachment means 44 is constituted by, for example, a low head bolt 46 ′, a nut 47, and a washer 48. Even in this configuration, the gap 50 gradually decreases downward, but the lower end of the rear rubber plate 41 is sandwiched between the stainless steel plate 42 and the leveling plate 18 as described above. In the vicinity of the lower end of the plate 41, its size is zero.

  The rear rubber plate 41 and the stainless steel plate 42 are not limited to the fastening means 44 together with the leveling plate 18, and for example, although not shown, the rear rubber plate 41 and the stainless steel plate 42 are individually attached. It may be.

  Although several embodiments of the present invention and modifications thereof have been described, the above-described embodiments and modifications can be appropriately combined without departing from the gist of the present invention.

1 Agricultural machines 3 Tillage bodies
18 Leveling plate
31 Upper rubber plate as first soil adhesion prevention member
41 Back rubber plate as second soil adhesion prevention member
41a Free end
42 Stainless steel plate as third soil adhesion prevention member
50 Clearance
51 1st plate
52 First curved plate
53 Second plate part
54 Second curved plate
55 Third plate
56 3rd plate

Claims (5)

A plowing body for plowing work,
A first soil adhesion preventing member located above the tillage body;
A second soil adhesion preventing member located on the upper rear side of the tillage body;
A third soil adhesion preventing member located on the rear lower side of the tillage body,
The agricultural work machine, wherein the first soil adhesion preventing member, the second soil adhesion preventing member, and the third soil adhesion preventing member are all detachable. The upper end of the second soil adhesion preventing member is a movable free end,
The agricultural work machine according to claim 1, wherein the free end portion is located above a rear end portion of the first soil adhesion preventing member. There is a gap between the second soil adhesion preventing member and the leveling plate,
The agricultural working machine according to claim 1 or 2, wherein the gap is reduced downward. The third soil adhesion preventing member has at least six plate portions,
The six plate portions are a first flat plate portion, a first curved plate portion, a second flat plate portion, a second curved plate portion, a first curved plate portion, which are sequentially located from one end side to the other end side of the third soil adhesion preventing member. It is a 3 flat plate part and a 3rd curved plate part. The agricultural work machine as described in any one of Claim 1 thru | or 3 characterized by the above-mentioned. Each of the first soil adhesion preventing member and the second soil adhesion preventing member is made of an elastic plate that can be elastically deformed,
The agricultural work machine according to any one of claims 1 to 4, wherein the third soil adhesion preventing member is a stainless steel plate.

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