JP6914561B2 - Ridge coating machine - Google Patents

Description

The present invention relates to a ridge coating machine provided with a pretreatment unit that is attached to a traveling machine body to cut down old ridges and fill the soil.

Patent Document 1 discloses a configuration in which a soil removing member is provided in the pretreatment section of the ridge coating machine to cover the front side in the rotational direction with respect to a part of the tillage claw. With this soil removing member, the soil adhering to the inner surface of the rear plate portion arranged on the rear side in the traveling direction of the ridge coating machine of the cover body covering the pretreatment portion is removed.

Japanese Unexamined Patent Publication No. 2014-23513

However, in the configuration of Patent Document 1, the soil adhering to the inner surface of the rear plate portion constituting the cover body can be removed, but the soil adhering to the inner surface of the other portion (arc-shaped plate portion) constituting the cover body. The amount of

In view of the above circumstances, an object of the present invention is to provide a ridge coating machine capable of reducing the amount of soil adhering to the cover.

The ridge coating machine of the present invention is mounted on a traveling machine, is arranged at a position offset to the side with respect to the running position of the traveling machine, and includes a pretreatment unit for cutting down old ridges and filling the soil. In the ridge coating machine that progresses with the running of the cultivator and performs the ridge coating work, the pretreatment portion is provided on a cultivator that is rotatably supported and rotates with the cultivator shaft, and a cover that covers the cultivator claw. And a contact member provided on the cover, which has elasticity and can come into contact with the cultivator.

According to the present invention, the amount of soil adhering to the cover can be reduced in the ridge coating machine.

It is a top view which shows the ridge coating machine which concerns on 1st Embodiment of this invention, and the traveling machine which pulls a ridge coating machine. (A) is a side view of the pretreatment section as viewed from a direction orthogonal to the axial direction of the tillage axis of the pretreatment section. (B) is a partial cross-sectional view taken along the line AA of (A). It is an enlarged cross-sectional view which shows the arrangement relation of a side plate part, an urging member, and a contact member. It is sectional drawing which shows the positional relationship between the contact member and the rotation locus of a tiller claw. It is sectional drawing which shows the operation of a ridge coating machine. (A) is a side view of the pretreatment section as viewed from a direction orthogonal to the axial direction of the tillage axis of the pretreatment section according to the second embodiment of the present invention. (B) is a partial cross-sectional view taken along the line AA of (A). It is an enlarged sectional view of a contact member.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The embodiments shown below are examples of embodiments of the present invention, and the present invention is not limited to these embodiments. In the drawings referred to in the present embodiment, the same parts or parts having the same functions are designated by the same reference numerals or similar reference numerals, and the repeated description thereof may be omitted.

Further, for convenience of explanation, the terms front and rear will be used, but the front indicates the direction of the traveling machine 500 for pulling the ridge coating machine 100 with respect to the ridge coating machine 100, and the rear indicates the direction of the traveling machine 500 with respect to the traveling machine 500. Indicates the direction of.

Further, for convenience of explanation, the term upstream or downstream will be used, but upstream or downstream indicates the direction or position of movement of the tillage claw 1 (see FIG. 2). For example, when the cultivator 1 rotates, the position where the cultivator 1 passes first is called the upstream, and the position where the cultivator 1 passes after that is called the downstream. In other words, the side in the rotation direction of the cultivator 1 is referred to as downstream, and the side opposite to the rotation direction of the cultivator 1 is referred to as upstream.

(First Embodiment)
FIG. 1 is a plan view showing a ridge coating machine 100 according to the first embodiment of the present invention and a traveling machine body 500 for pulling the ridge coating machine 100. A ridge coating machine 100 is attached to the rear portion of the traveling machine body 500 in the field 60 to form ridges 301 that form the outer shape of the field.

The ridge coating machine 100 is mounted on the traveling machine body 500 by the mounting portion 210, and is brought to a position offset laterally with respect to the traveling position of the traveling machine body 500 by the offset link mechanism unit 230.

The mounting portion 210 is mounted on a connecting portion 11 such as a three-point link in the traveling machine body 500. Here, the mounting portion 210 is provided with an input shaft that is connected to the PTO shaft of the traveling machine body 500 and power is transmitted from the PTO shaft via a universal joint, a transmission shaft, or the like, and the offset link mechanism portion 230 is provided with this input shaft. A power transmission mechanism for transmitting power from the input shaft to the transmission mechanism is provided. Further, the ridge coating machine 100 is provided with a substantially conical ridge adjusting portion for performing the ridge coating operation and a driving unit for rotationally driving the ridge adjusting portion.

The mounting portion 210 includes lower link connecting portions 211a and 211b and a top link connecting portion 212, and also includes a support member 213 on which the offset link mechanism portion 230 is mounted. Further, the mounting portion 210 includes an input shaft (not shown) connected to the PTO shaft of the traveling machine body 500 via a transmission joint such as a universal joint, and offset links the power transmitted to the input shaft. A mechanism for transmitting to the transmission mechanism of the mechanism unit 230 is also provided in the support member 213. An auto hitch arm (not shown) may be attached to the lower link connecting portions 211a and 211b and the top link connecting portion 212, and the auto hitch arm and the link mechanism of the traveling machine body 500 may be connected to each other. ..

One end of the offset link mechanism portion 230 is rotatably supported by the mounting portion 210, and the other end of the offset link mechanism portion 230 is rotatably supported by the ridge coating machine 100. Further, the offset link mechanism unit 230 has a function of supporting the ridge coating machine 100 at a predetermined working position (also referred to as an offset position) with respect to the mounting unit 210.

One end of the offset link mechanism portion 230 is supported by the support member 213 of the mounting portion 210, and the other end is attached to the ridge coating machine 100, and includes the link member 231 and the offset frame 232.

The link member 231 is a member whose one end is rotatably supported toward the mounting portion 210 and the other end is rotatably supported toward the ridge coating machine 100, and controls the position of the ridge coating machine 100. be. The offset frame 232 includes a winding transmission means for transmitting power to the ridge coating machine 100 side, and has vertically provided transmission shafts 232a and 232b, so that the offset frame 232 can rotate around the transmission shaft 232a. The ridge coating machine 100 is rotatably supported around the transmission shaft 232b.

The offset frame 232 and the link member 231 are arranged in parallel, and these and the support member 223 form a parallel link mechanism. Therefore, the working direction of the ridge coating machine 100 does not change with respect to the swing of the offset link mechanism unit 230 in the offset angle θ direction, that is, the offset movement of the ridge coating machine 100 is possible while maintaining the ridge coating work surface. Become. In this way, the ridge coating machine 100 is mounted on the traveling machine body 500, is arranged at a position offset to the side with respect to the traveling position of the traveling machine body 500, and proceeds with the traveling of the traveling machine body 500 to perform the ridge coating work.

In the ridge coating machine 100, a pretreatment section 101 having a tilling claw 1 (see FIG. 2) for cutting a part of the old ridge and performing soil filling work, and the soil piled up in front by the pretreatment section 101 are cut down. It is provided with a ridge portion 220 for forming a new ridge by smearing it on an old ridge. The ridge coating machine 100 includes a transmission mechanism that distributes the power transmitted to the transmission shaft 232b to the pretreatment unit 101 and the ridge adjustment unit 220.

Here, the pretreatment unit 101 can adopt a rotary tillage type pretreatment mechanism in which a rotary claw is attached to a drive shaft, and a top treatment mechanism (heaven) that scrapes off the top of old ridges as needed. A field processing rotor) may be added. Further, as the ridge portion 220, a ridge body composed of a cylindrical upper surface ridge body 222a that forms the upper surface of the ridge and a conical side surface ridge body 222b that forms the side surface of the ridge can be adopted.

(Structure of pre-processing unit)
FIG. 2A is a side view of the pretreatment section 101 as viewed from a direction orthogonal to the axial direction of the tillage axis 1X of the pretreatment section 101. FIG. 2B is a partial cross-sectional view taken along the line AA of FIG. 2A. The pretreatment unit 101 includes a cultivator shaft 1X, a cultivator claw 1, a cover 10, a contact member 20, and an urging member 30.

The cover 10 has two flat plate portions 10Z extending in a direction orthogonal to the tillage shaft 1X, and side plate portions 10X arranged side by side in the substantially circumferential direction of the tillage shaft 1X to form a side surface of the pretreatment portion 101. However, the two flat plate portions 10Z are arranged and connected in a positional relationship sandwiching the side plate portion 10X. Further, a through port 40 communicating with the inside of the cover 10 is formed between the side plate portions 10X.

The cover 10 covers the tilling claw 1 and the tilling shaft 1X. The tillage shaft 1X is rotatably supported by the flat plate portion 10Z of the cover 10. When the ridge coating machine 100 is driven, the tiller claw 1 rotates in the rotation direction J about the tiller shaft 1X.

(Contact member and urging member)
FIG. 3 is an enlarged cross-sectional view showing the arrangement relationship of the side plate portion 10X, the urging member 30, and the contact member 20. Here, the contact member 20 and the urging member 30 are arranged so as to form the side wall of the through port 40 (see FIG. 2).

(Contact member)
The upstream portion 20A of the contact member 20 is attached to the upstream portion 10X1 of the side plate portion 10X of the cover 10 by fasteners 51 (bolts 51a and nuts 51b). The upstream portion 30A of the urging member 30 is attached to the downstream portion 10X2 of the side plate portion 10X of the cover 10 by the fastener 52 (bolt 52a and nut 52b).

Further, the contact member 20 is a member that can be contacted while facing the rotating tiller claw 1 (see FIG. 2). The contact member 20 has elasticity. The layer structure of the contact member 20 can be variously configured, but here, the contact member 20 has a plurality of rubber layers 20p and a canvas 20q arranged between the plurality of rubber layers 20p. It is made of multi-layer rubber. Alternatively, the contact member 20 may be formed of a single rubber layer. Further, the urging member 30 can have various configurations for applying an urging force, but here, it is formed of a leaf spring.

(Space between multiple contact members)
Here, it will be described back to FIG. A plurality of contact members 20 are arranged adjacent to each other in the rotation direction J of the tillage claw 1. The number of the contact members 20 may not be particularly limited and may not be at predetermined intervals, but in the present embodiment, five contact members are arranged at predetermined intervals in the rotation direction J. By arranging them at predetermined intervals in this way, it is possible to eliminate the unevenness of the amount of soil adhering to each contact member 20.

Further, of the two adjacent contact members 20, one of the contact members 20 faces each other at a fixed position (fastened position by the bolt 51a and the nut 51b, which are fasteners 51) of the other contact member 20 to the cover 10. (Overlapping each other). That is, when viewed from the cultivator shaft 1X, one contact member 20 is in a positional relationship that hides the fixed position of the other contact member 20 adjacent thereto to the cover 10.

(Position of contact member and rotation locus of tiller claw)
FIG. 4 is a cross-sectional view showing the positional relationship between the contact member 20 and the rotation locus K of the tillage claw 1. When the contact member 20 and the tilling claw 1 are in a non-contact state, the contact member 20 flexes inward toward the tip 20a (a portion downstream of the rotation direction J) of the contact member 20 on the tilling shaft 1X side. I'm sorry.

Here, three types of tillage claws 1 are attached to the tillage shaft 1X. The tilling claw 1 includes two having a claw holding portion 1A and a claw 1B, two having a claw holding portion 1C and a claw 1D, and two having a claw holding portion 1E and a claw 1F. , There is. The tip 1a of the claw 1B passes through a circular rotation locus K1 having a diameter x1, the tip 1a of the claw 1D passes through a circular rotation locus K2 having a diameter x2, and the tip 1a of the claw 1F has a circular rotation locus K3. Pass through K3.

Here, the diameter is set smaller in the order of diameter x1, diameter x2, and diameter x3, and the rotation locus is set smaller in the order of rotation locus K1, rotation locus K2, and rotation locus K3. In the present embodiment, the tip 20a of the contact member 20 described above is arranged between the rotation locus K1 and the rotation locus K2. With this configuration, the rotation of the claw 1B causes the claw 1B to come into contact with the tip 20a of the contact member 20, and the contact member 20 vibrates, making it difficult for soil to adhere to the contact member 20. Further, even if soil adheres to the contact member 20, the amount of soil adhering to the contact member 20 can be reduced by the vibration of the contact member 20.

Further, the configuration is not limited to that of the present embodiment, and the tip 20a of the contact member 20 may be arranged between the rotation locus K2 and the rotation locus K3. Further, it is also possible to arrange the contact portion 30J, which is a portion where the urging member 30 comes into contact with the contact member 20, so as to be located within the rotation locus K1 to the rotation locus K3 of the tip 1a of the tillage claw 1.

Alternatively, in the region between the rotation locus K1 and the rotation locus K2, the tip 20a of the contact member 20 is arranged closer to the rotation locus K2, and the contact portion 30J of the urging member 30 is arranged closer to the rotation locus K1. It may be.

(Bending member)
Here, it will be described back to FIGS. 2 and 3. As described above, the urging member 30 is provided with respect to the side plate portion 10X of the cover 10. The urging member 30 urges the contact member 20 toward the tilling shaft 1X side with respect to the rotation locus K of the tip 1a of the tilling claw 1. The urging member 30 is formed of a leaf spring. The urging member 30 has a contact portion 30J that contacts the contact member 20 on the downstream side and a non-contact portion that does not contact the contact member 20 on the upstream side of the contact portion 30J while the tiller claw 1 is stationary. It has 30K and.

The side plate portion 10X is curved in a direction away from the substantially cultivator shaft 1X from upstream to downstream. Further, the urging member 30 is curved in a direction closer to the cultivator shaft 1X from the upstream to the downstream. Therefore, a space Z is formed between the side plate portion 10X, the urging member 30, and the contact member 20 in a cross-sectional view of the tillage shaft 1X when viewed from the axial direction.

When the tiller claw 1 comes into contact with the contact member 20 and the contact member 20 moves outward from the rotation locus K of the tiller claw 1 (in the direction away from the tiller shaft 1X), the non-contact portion between the contact member 20 and the urging member 30 The interval M between 30K is narrowed. When the tiller claw 1 becomes non-contact with the contact member 20 and the contact member 20 moves inward of the rotation locus K of the tiller claw 1 (in the direction approaching the tiller shaft 1X), the contact member 20 and the urging member 30 are not hit. The distance M between the contact portion 30K and the contact portion 30K is widened. In this way, the interval M narrows when the tiller claw 1 rotates and the contact member 20 bends outward, and widens when the contact member 20 bends inward.

In the process of shifting from the narrow state to the wide state, the urging member 30 elastically presses the contact member 20. Therefore, if the interval M is too narrow, the urging member 30 is unlikely to be elastically displaced, and if the interval M is wide, there is an advantage that the stroke amount (displacement amount) of the urging member 30 can be increased.

(Base end to abutment of urging member)
The urging member 30 has a portion closer to the tillage shaft 1X of the tiller claw 1 on the downstream side than on the upstream side in the rotation direction J of the tiller claw 1. That is, the urging member 30 has a portion that inclines inward from the upstream side to the downstream side.

(Abutment to tip of urging member)
The tip portion 30X2 of the contact portion 30J of the urging member 30 is a portion downstream of the rotation direction J of the tillage claw 1 from the contact position with the contact member 20, and is curved in a direction away from the tillage shaft 1X. ing. By forming in this way, the phenomenon that the tip of the contact portion 30J of the urging member 30 sticks to the contact member 20 and does not function is suppressed.

(Operation of ridge coating machine)
FIG. 5 is a cross-sectional view showing the operation of the ridge coating machine 100. When the tiller claw 1 rotates in the rotation direction J about the tiller shaft 1X, the tiller claw 1 comes into contact with the contact member 20. The contact member 20 is pushed outward, but the urging member 30 pushes the contact member 20 back toward the cultivator shaft 1X (the contact member 20 tries to return to its original position). Then, after the tilling claw 1 has passed through the contact member 20, the contact member 20 swings toward the tilling shaft 1X, and the contact member 20 vibrates. In this way, the amount of soil adhering to the contact member 20 itself can be reduced by vibrating the contact member 20. Therefore, the amount of soil adhering to the cover 10 to which the contact member 20 is attached can be reduced. Further, if the amount of soil adhering to the contact member 20 can be reduced, the resistance when the tiller claw 1 comes into contact with the contact member 20 due to the rotation of the tiller claw 1 can be reduced, and the wear of the tiller claw 1 can be suppressed. can do. Further, since the weight of the ridge coating machine 100 does not change much before and after the ridge coating operation, the ridge coating operation can be performed safely and stably.

Further, even if soil adheres between the contact member 20 and the side plate portion 10X of the cover 10, the cover 10 has a through hole 40 formed between the side plate portions 10X, so that the user can use the rod. Adhering soil can be removed by pushing it into the through hole 40 or the like.

(Second Embodiment)
FIG. 6A is a side view of the pretreatment unit 201 as viewed from a direction orthogonal to the axial direction of the tillage shaft 1X of the pretreatment unit 201 included in the ridge coating machine 200 according to the second embodiment of the present invention. FIG. 6B is a partial cross-sectional view taken along the line AA of FIG. 6A. FIG. 7 is an enlarged cross-sectional view of the contact member 20.

The contact member 20 of the present embodiment is the same as the configuration of the first embodiment in that the contact member 20 is provided on the cover 10 and can be contacted while facing the rotating tiller claw 1. However, the contact member 20 of the present embodiment has a region of the resin 21 having elasticity and a region of the metal 23 that applies an urging force inward from the rotation locus K of the tiller claw 1. It is different from the configuration of one embodiment. That is, the urging function exists in the region of the metal 23 in the contact member 20.

Specifically, the contact member 20 has a region of resin 21 on the side of the tiller claw 1 and a region of metal 23 on the side opposite to the tiller claw 1. Further, the contact member 20 may be configured such that the resin 21 contains the metal 23. Again, the resin 21 region of the contact member 20 can be configured in various ways, but is made of a multilayer rubber having a plurality of rubber layers and a canvas arranged between the plurality of rubber layers. It may be formed.

According to the configuration of the second embodiment described above, the number of parts constituting the pretreatment unit 201 can be reduced to reduce the cost, and the soil adhering to the contact member 20 itself due to the vibration of the contact member 20 can be reduced. The amount can be reduced. Therefore, the amount of soil adhering to the cover 10 to which the contact member 20 is attached can be reduced. Further, if the amount of soil adhering to the contact member 20 can be reduced, the resistance when the tiller claw 1 comes into contact with the contact member 20 due to the rotation of the tiller claw 1 can be reduced, and the wear of the tiller claw 1 can be suppressed. can do.

Of course, the cover 10 may be configured to have both the contact member 20 of the first embodiment and the contact member 20 of the second embodiment attached.

1: Tillage claw, 1a: Tip, 1A: Claw holder, 1B: Claw, 1C: Claw holder, 1D: Claw, 1E: Claw holder, 1F: Claw, 1X: Tillage shaft, 10: Cover, 10X: Side plate part, 10X1: upstream part, 10X2: downstream part, 10Z: flat plate part, 11: connecting part, 20: contact member, 20A: upstream part, 20a: tip, 21: resin, 23: metal, 30: urging member , 30A: upstream part, 30J: contact part, 30K: non-contact part, 30X2: tip part, 40: through hole, 51: fastener, 51a: bolt, 51b: nut, 52: fastener, 52a: bolt , 52b: Nut, 60: Field, 100: Ridge coating machine, 101: Pretreatment part, 220: Ridge part, 301: Ridge, 500: Traveling machine, J: Rotation direction, K, K1, K2, K3: Rotation Trajectory, M: interval, x1, x2, x3: diameter, Z: space

Claims (6)

In a ridge coating machine equipped with a pretreatment unit that cuts down old ridges and fills the soil, it is attached to the traveling machine and progresses with the running of the traveling machine to perform ridge coating work.
The pretreatment unit
A tiller claw provided on a rotatably supported tiller shaft and rotating with the tiller shaft,
A cover that covers the cultivator and
A contact member provided on the cover, having elasticity and being able to come into contact with the cultivator,
With
The contact member is an elastic member made of resin or rubber, and a metal that is arranged inside the elastic member and urges the elastic member toward the tillage shaft side with respect to the rotation locus of the tip of the tiller claw. A ridge coating machine having a member and. In a ridge coating machine equipped with a pretreatment unit that cuts down old ridges and fills the soil, it is attached to the traveling machine and progresses with the running of the traveling machine to perform ridge coating work.
The pretreatment unit
A tiller claw provided on a rotatably supported tiller shaft and rotating with the tiller shaft,
A cover that covers the cultivator and
A contact member provided on the cover, having elasticity and being able to come into contact with the cultivator,
With
The contact member includes an elastic member made of resin or rubber facing the tiller claw, and a metal member that urges the elastic member toward the tiller shaft side from the rotation locus of the tip of the tiller claw. Ridge coating machine to have. The elastic member includes a plurality of resin layers or a plurality of rubber layers, and includes a plurality of resin layers or a plurality of rubber layers.
The ridge coating machine according to claim 1 or 2, wherein the canvas is arranged between the plurality of resin layers or the plurality of rubber layers. The ridge coating machine according to any one of claims 1 to 3, wherein a plurality of the contact members are arranged adjacent to each other in the rotation direction of the tiller claw. The ridge coating machine according to any one of claims 1 to 4, wherein one of the two adjacent contact members faces the fixed position of the other contact member on the cover. The ridge coating machine according to any one of claims 1 to 5, wherein at least a part of the contact member is located on the tilling shaft side of the rotation locus of the tip of the tilling claw.

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