JP6871565B2 - Agricultural work machine - Google Patents

Description

The present invention relates to an agricultural work machine that can reduce the burden on workers.

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

This conventional agricultural work machine is provided on a machine body connected to the rear part of a traveling vehicle such as a tractor, a tillage body rotatably provided on the body and having a tillage shaft and a plurality of tillage claws, and a tillage shaft of the tillage body. It is arranged so as to be located along the tillage shaft, and is provided with a linear means for preventing wrapping to prevent wrapping of contaminants (for example, grass) around the tillage shaft.

Japanese Unexamined Patent Publication No. 2006-325526

However, in the above-mentioned agricultural work machine, for example, after attaching the tillage claw to the claw holder portion of the tillage shaft, when attaching the linear means, there are a plurality of ways of passing the linear means, so that the operator can pass the line. It takes time to attach the shape means, which may be a heavy burden on the operator.

The present invention has been made in view of such a point, and an object of the present invention is to provide an agricultural work machine capable of reducing the burden on the worker.

The agricultural work machine according to claim 1 has a tillage shaft and a plurality of tillage claws, and is arranged so as to be located along the tillage shaft with a tiller body that performs tillage work while rotating, and onto the tillage shaft. The tillage shaft includes a linear means for preventing the wrapping of contaminants and a marking means provided on the tillage shaft as a guide for a position through which the linear means is passed. The tillage shaft includes a shaft-shaped shaft main body and the above. A plurality of claw attachment portions projecting from the shaft body portion to which the tilling claws are attached, and projecting portions projecting from the outer peripheral surfaces of the shaft body portion on both ends in the axial direction and to which the linear means is attached. The marking means has a welding pile provided on the front surface in the rotation direction or the rear surface in the rotation direction of the claw mounting portion .

The agricultural work machine according to claim 2 is the agricultural work machine according to claim 1. In the agricultural work machine according to claim 1, the marking means are a front mark, which is a welding pile provided on the front surface in the rotation direction of the one claw attachment portion, and the one claw attachment portion. It has a rear mark which is a welding pile provided on the rear surface in the rotation direction of another claw attachment portion different from the above, and the front mark has a position where the linear means is passed forward in the rotation direction of the tilling claw to be avoided. It indicates that the position is on the side, and the rear mark indicates that the position through which the linear means is passed is the position on the rear side in the rotation direction of the tilling claw to be avoided.

The agricultural work machine according to claim 3 is the agricultural work machine according to claim 1 or 2, wherein the linear means is detachably attached to the protruding portion of the tillage shaft via the attachment means at both ends in the longitudinal direction. is there.

According to the present invention, since the marking means that serves as a guide for the position through which the linear means is passed is provided, the burden on the operator can be reduced.

It is a side view of the agricultural work machine which concerns on one Embodiment of this invention. It is a schematic diagram of the same farm work machine. It is a figure which shows the winding prevention linear member of the agricultural work machine and the attachment means thereof. (A) and (b) are perspective views which show the axial end part of the tillage body. It is a side view of the same cultivated body. It is explanatory drawing of how to pass a winding prevention linear member of the same above. (A) and (b) are diagrams showing an example of a marking means. It is explanatory drawing of the same-mentioned mark means. (A) and (b) are diagrams showing other examples of marking means. It is a figure which shows another example of the mark means.

An embodiment of the present invention will be described with reference to FIGS. 1 to 8.

1 in the figure is an agricultural work machine, and this agricultural work machine 1 is connected to, for example, the rear part of a tractor (not shown) which is a traveling vehicle, and the tractor travels to move the field forward (in the direction of travel) while cultivating land. Work (farming work) is performed.

The agricultural work machine 1 is a machine 2 detachably connected to a three-point link portion at the rear of a tractor (not shown), and the farm work machine 1 is rotatably provided on the machine 2 and is cultivated while rotating in a predetermined direction (for example, a downcut direction). The cultivated body (rotary) 3 and the cultivated body (rotary flat plate) 4 that is provided on the machine body 2 so as to be rotatable in the vertical direction around the axis (rotating fulcrum) 5 in the left-right direction and that performs the ground preparation work behind the cultivated body 3. And have.

As shown in FIG. 1, the airframe 2 has a three-point connecting portion (traveling vehicle connecting portion) 11 that is detachably connected to a three-point link portion at the rear of the tractor. The three-point connecting portion 11 has one top mast 12 and two lower arms 13 in a pair on the left and right. A top pin 14 is attached to the tip of the top mast 12, and a lower pin 15 is attached to the tip of the lower arm 13.

Further, the airframe 2 has a mission case portion 17 which is a shaft holding portion that rotatably holds the input shaft 16 in the front-rear direction, and a frame which is a frame portion extending in the left-right direction on both left and right sides of the mission case portion 17. The inner end of the pipe portion 18 is attached. The input shaft 16 is connected to the PTO shaft of the tractor via a joint (not shown).

A chain case portion 19 which is a box-shaped tiller support portion is attached to the outer end portion of the frame pipe portion 18 on the left side. On the other hand, a bracket portion 20 which is a plate-shaped tiller support portion is attached to the outer end portion of the frame pipe portion 18 on the right side. The tiller 3 is rotatably supported by the chain case portion 19 and the bracket portion 20 which are separated from each other and face each other. A side cover plate 10 which is a side plate portion is fixed to each of the chain case portion 19 and the bracket portion 20.

Further, the machine body 2 has a tillage cover portion 21 that covers the upper portion of the tillage body 3, and the ground leveling body 4 is attached to the rear end portion of the tillage cover portion 21 so as to be rotatable in the vertical direction about the shaft 5. Has been done. A ground pressure adjusting means 22 capable of adjusting the ground pressure of the ground leveling body 4 is installed between the ground leveling body 4 and the machine body 2.

As shown in FIG. 2, the cultivated body 3 performs cultivating work while rotating in a predetermined direction about the rotation center axis X in the left-right direction based on the power from the input shaft 16 side.

The tiller body 3 has a tiller shaft 31 which is a rotation axis extending in the left-right direction, and a plurality of tiller claws 32 provided detachably on the tiller shaft 31. Then, the spline shaft portion 34 at the left end portion, which is one end portion in the axial direction of the tillage shaft 31, is rotatably attached to the chain case portion 19 via the boss portion 25, and is the other end portion in the axial direction of the tillage shaft 31. The right shaft portion 35 at the right end is rotatably attached to the bracket portion 20 via the boss portion 25.

The cultivated shaft 31 includes a hollow and round shaft main body 36 extending in the left-right direction, a claw holder 37 which is a plurality of claw attachment portions protruding from the outer peripheral surface of the shaft main body 36, and a shaft main body. It has a pair of protruding plate portions 38 projecting from the outer peripheral surfaces of both ends of the portion 36 in the left-right direction. The plurality of claw holder portions 37 are arranged on the outer peripheral surface of the shaft main body portion 36 at intervals in a spiral direction centered on the shaft main body portion 36. A tillage claw 32 is detachably attached to each claw holder portion 37 by a claw attachment bolt 40 or the like.

Further, the agricultural work machine 1 is arranged so as to be positioned along the axial direction (left-right direction) of the tillage shaft 31 (including the case where it is positioned substantially along the axial direction of the tillage shaft 31) while avoiding the tillage claw 32. On the wrapping prevention linear member (linear member) 41, which is a linear means for preventing wrapping of contaminants (for example, grass, etc.) around the tillage shaft 31, and the tillage shaft 31 of the tillage body 3. It is provided with a marking means 42 that serves as a guide for the position through which the wrapping prevention linear member 41 is passed in order to avoid the tillage claw 32 when the wrapping prevention linear member 41 is attached.

In the present embodiment, a plurality of winding prevention linear members 41, for example, only two, are provided on the tillage shaft 31, but the number is not limited to two, and may be three or more, or may be three or more. One may be used. Further, the wrapping prevention linear member 41 is made of, for example, a flexible metal wire rod slightly longer than the tillage shaft 31.

As shown in FIGS. 2 to 4, the wrapping prevention linear member 41 is detachably attached to the tillage shaft 31 of the tillage body 3 via the linear member attachment means 43. The linear member mounting means 43 includes a mounting plate 48 in which a hole for a linear member 46 and a hole for a bolt 47 are formed, a stop plate 51 in which a hole for a linear member 49 and a hole for a bolt 50 are formed, and a stop plate 51. A plate mounting bolt 52 and a nut member 53 for mounting the mounting plate 48 on the protruding plate portion 38 of the tillage shaft 31, and a nut 54 for mounting the wrapping prevention linear member 41 on the mounting plate 48 (from the left in FIG. 3). It has 54a, 54b, 54c, 54d, 54e) in order to the right. The anti-vibration plate 51 is attached to the claw holder portion 37 together with the tilling claw 32 by a claw attachment bolt 40 or the like (see FIG. 2).

Further, as shown in FIG. 4A, the nut member 53 is fixed to a plate-shaped nut portion 57 having two screw holes 56 into which plate mounting bolts 52 are screwed, and the nut portion 57. It is composed of a blade portion 58 for cutting impurities. The blade portion 58 rotates together with the tillage shaft 31 to cut impurities, thereby preventing impurities such as grass from getting entangled around the boss portion 25.

Then, the mounting plate 48 is attached to the protruding plate portion 38 of the tillage shaft 31 by the plate mounting bolt 52 and the nut member 53, and the end portion of the winding prevention linear member 41 is attached to the mounting plate 48 by the nut 54. ing. A thread groove 59 is formed on the outer peripheral surface of the end portion of the winding prevention linear member 41, and a nut 54 is screwed into the thread groove 59. Further, of the plurality of nuts 54, only the nut 54b is fixed to the winding prevention linear member 41 by welding (see FIG. 3). Instead of the screw groove 59 and the nut 54b, a bolt may be fixed to the end of the winding prevention linear member 41 by welding or the like.

Here, as shown in FIG. 6, after the tilling claw 32 is attached to each claw holder portion 37 of the tilling shaft 31, the winding prevention linear member 41 is attached to the tilling shaft 31 by using the linear member attaching means 43. At that time, there are a plurality of ways of passing the winding prevention linear member 41. Therefore, the operator may not know whether to pass the wrapping prevention linear member 41 in front of or behind the rotation direction of the tillage claw 32 at the time of attaching the wrapping prevention linear member 41.

Therefore, as shown in FIGS. 7 and 8, at least one of the shaft main body 36 and the claw holder 37 of the tillage shaft 31, that is, for example, the outer peripheral surface of the shaft main body 36 is wound around the operator. A marker means 42 is provided to indicate how to pass the sticking prevention linear member 41.

The marking means 42 is composed of, for example, the front marking 42a shown in FIG. 7A and the rear marking 42b shown in FIG. 7B.

The front mark 42a is a point mark (for example, a welding pile) indicating that the position through which the winding prevention linear member 41 is passed is the position on the front side in the rotation direction of the tillage claw 32 to be avoided. The front mark 42a is a position on the outer peripheral surface of the shaft main body 36 on the front side in the rotation direction of the tillage claw 32 to be avoided, that is, the front surface in the rotation direction of the claw holder portion 37 to which the tillage claw 32 to be avoided is attached. It is provided in a bulging shape near the lower end of 37a.

The rear mark 42b is a point mark (for example, a welding pile) indicating that the position through which the winding prevention linear member 41 is passed is the position on the rear side in the rotation direction of the tillage claw 32 to be avoided. The rear mark 42b is a position on the outer peripheral surface of the shaft main body 36 on the rear side in the rotation direction of the tillage claw 32 to be avoided, that is, the rear surface in the rotation direction of the claw holder portion 37 to which the tillage claw 32 to be avoided is attached. It is provided in a bulging shape near the lower end of 37b.

The tillage claw 32 to be avoided is a case where, of the plurality of tillage claws 32, the winding prevention linear member 41 is to be arranged in a straight line along the axial direction (left-right direction) of the tillage shaft 31. It means a cultivated claw that becomes an obstacle (depending on the size and shape of the claw holder portion 37, the claw holder portion may be an obstacle instead of the cultivated claw).

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

For example, when assembling the agricultural work machine 1 or exchanging parts, when the tilling claw 32 is attached to all the claw holders 37 and then the winding prevention linear member 41 is attached to the tilling shaft 31, the worker , Looking at the marks 42a and 42b of the mark means 42, while confirming the position through which the wrapping prevention linear member 41 is passed, avoid the tilling claw 32 to be avoided and pass the wrapping prevention linear member 41.

Therefore, the operator does not have to know whether to pass the wrapping prevention linear member 41 in the front or rear of the rotation direction of the tilling claw 32, and the wrapping prevention linear member 41 can be easily passed with respect to the tilling shaft 31. It can be attached to.

As described above, according to the agricultural work machine 1, since the marking means (front mark 42a and rear mark 42b) 42 that serve as a guide for the position through which the wrapping prevention linear member 41 is passed is provided, the operator can prevent wrapping. The installation work of the linear member 41 can be easily performed, and the burden on the operator can be reduced.

In the above embodiment, the front mark 42a and the rear mark 42b are provided only on the shaft main body portion 36, but as shown in FIGS. 9A and 9B, for example, the claw holder portion 37 It may be provided only in.

The front mark 42a shown in FIG. 9A is provided in a bulging shape on the front surface 37a in the rotation direction of the claw holder portion 37 to which the tilling claw 32 to be avoided is attached. Further, the rear mark 42b shown in FIG. 9B is provided in a bulging shape on the rear surface 37b in the rotation direction of the claw holder portion 37 to which the tilling claw 32 to be avoided is attached.

For example, the marks 42a and 42b constituting the mark means 42 may be provided on both the shaft main body portion 36 and the claw holder portion 37, respectively. Further, only one of the front and rear marks 42a and 42b may be provided.

Further, the marks 42a and 42b are not limited to those consisting of a weld fill (welded fill) which is a protrusion, for example, character display such as "front" and "rear", graphic display such as an arrow, and a color such as red. The display may be provided by a pen such as a felt-tip pen, a paint, a seal, or the like.

On the other hand, the marking means 42 is not limited to the one including the front marking 42a and the rear marking 42b. For example, as shown in FIG. 10, the marking means 42 shows a trajectory through which the winding prevention linear member 41 passes. It may consist only of.

The linear mark 61 shown in FIG. 10 extends from one end in the axial direction to the other end in the axial direction on the outer peripheral surface of the shaft main body 36 of the tillage shaft 31 so as to be positioned so as to face each winding prevention linear member 41. It is provided in a substantially zigzag shape.

Further, the linear mark 61 may be provided by, for example, a pen such as a felt-tip pen, painting, sealing, laser processing, or the like, or may be, for example, a ridge portion made of a welding pile 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 3 Tillage body
31 Tillage axis
32 Tillage claws
36 Axis body
37 Claw holder part that is a claw mounting part
38 Protruding plate part
41 Winding prevention linear member which is a linear means
42 Marking means
42a Welding prime front mark
42b Welding mark for rear
43 Linear member mounting means that is a mounting means

Claims (3)

A tiller body that has a tiller shaft and multiple tiller claws and performs tillage work while rotating.
A linear means that is arranged so as to be located along the tillage shaft and prevents the wrapping of impurities around the tillage shaft.
It is provided on the tillage shaft and is provided with a marking means as a guide for a position through which the linear means is passed .
The tillage shaft is
Shaft-shaped shaft body and
A plurality of claw attachment portions projecting from the shaft body portion and to which the tillage claws are attached,
It has a protruding portion that is projected from the outer peripheral surface of the shaft main body on both ends in the axial direction and to which the linear means is attached.
The marking means is an agricultural work machine characterized by having a welding pile provided on the front surface in the rotation direction or the rear surface in the rotation direction of the claw attachment portion. The landmark means is
A front mark, which is a welding pile provided on the front surface of the one claw mounting part in the rotation direction,
It has a rear mark, which is a welding pile, provided on the rear surface in the rotation direction of another claw mounting portion different from the one claw mounting portion.
The front mark indicates that the position through which the linear means is passed is the position on the front side in the rotation direction of the tillage claw to be avoided.
The rear mark indicates that the position through which the linear means is passed is the position on the rear side in the rotation direction of the tillage claw to be avoided.
The agricultural work machine according to claim 1, wherein the agricultural work machine is characterized in that. The linear means is detachably attached to the protruding portion of the tillage shaft via the attachment means at both ends in the longitudinal direction.
The agricultural work machine according to claim 1 or 2, wherein the agricultural work machine is characterized in that.

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