JP2020115895A - Ridge plastering machine - Google Patents

Abstract

To provide a ridge plastering machine capable of removing soil attached to tillage claws.SOLUTION: A ridge plastering machine includes a pretreatment part for cutting an old ridge to raise the ground, is mounted on a traveling machine body, and advances with the travel of the traveling machine body to perform ridge plastering work. The pretreatment part includes tillage claws provided to a rotatably-supported tillage shaft and rotating along with the tillage shaft, a cover for covering the tillage claws, and a contact member provided on the cover, having elasticity, and coming into contact with the tillage claws. The contact member includes an elastic member comprised of a resin or rubber, and a metal member disposed inside the elastic member and energizing the elastic member toward the tillage shaft side with respect to a rotation trajectory of the tip end of the tillage claws.SELECTED DRAWING: Figure 6

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ridge applicator equipped with a pretreatment unit that is mounted on a traveling machine body and cuts old ridges to embank.

Patent Document 1 discloses a configuration in which a soil removing member that covers the front side in the rotation direction with respect to a part of the tillage claw is provided in the pretreatment unit of the ridge coater. The soil removing member removes the soil adhering to the inner surface of the rear plate portion disposed on the rear side of the cover body covering the pretreatment portion in the traveling direction of the ridge coater.

JP, 2014-230513, A

However, in the configuration of Patent Document 1, although the soil attached to the inner surface of the rear plate portion forming the cover body can be removed, the soil attached to the inner surface of the other portion (arc-shaped plate portion) forming the cover body can be removed. Can not be reduced.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a ridge coater capable of reducing the amount of soil attached to a cover.

The ridge coating machine of the present invention is mounted on a traveling machine body, is arranged at a position laterally offset with respect to the traveling position of the traveling machine body, and is provided with a pretreatment section for cutting off the old ridges to fill up the earth, and the traveling machine body. In the ridge coating machine that proceeds with the traveling of the ridge coating work, the pretreatment section is provided on a cultivating shaft rotatably supported, and the tilling claw that rotates together with the cultivating shaft and a cover that covers the cultivating claw. And a contact member that is provided on the cover and has elasticity and that can contact the tilling claw.

According to the present invention, the amount of soil attached to the cover can be reduced in the ridge coater.

It is a top view which shows the ridge coating machine which concerns on 1st Embodiment of this invention, and the traveling machine body which pulls a ridge coating machine. (A) is a side view of the pretreatment section seen 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). FIG. 6 is an enlarged cross-sectional view showing a positional relationship between a side plate portion, a biasing member, and a contact member. It is sectional drawing which shows the positional relationship of a contact member and the rotation locus of a tillage nail. It is sectional drawing which shows operation|movement of a ridge coater. (A) is a side view of the pretreatment part seen from the direction orthogonal to the axial direction of the tillage axis of the pretreatment part 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 expanded 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 described below are examples of the embodiments of the present invention, and the present invention is not limited to these embodiments. Note that in the drawings referred to in this embodiment, the same portions or portions having similar functions are denoted by the same or similar reference numerals, and repeated description thereof may be omitted.

Further, for convenience of description, the terms front or rear will be used, but the front indicates the direction of the traveling machine body 500 that pulls the ridge coating machine 100 with respect to the ridge coating machine 100, and the rear side indicates the ridge coating machine 100 for the traveling machine body 500. Indicates the direction of.

Furthermore, for convenience of description, the terms upstream or downstream will be used, but the upstream or downstream indicates the moving direction or position of the tillage claw 1 (see FIG. 2 ). For example, when the tiller claw 1 rotates, the position where the tiller claw 1 passes first is referred to as the upstream, and the position where the tiller claw 1 passes thereafter is referred to as the downstream. In other words, the rotation direction side of the tillage claw 1 is referred to as the downstream, and the direction opposite to the rotation direction of the tillage claw 1 is referred to as the upstream.

(First embodiment)
FIG. 1 is a plan view showing a ridge coating machine 100 according to a first embodiment of the present invention and a traveling machine body 500 that pulls the ridge coating machine 100. The ridge coating machine 100 is mounted on the rear part of the traveling machine body 500 in the field 60, and the ridges 301 that form the outer shape of the field are formed.

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

The mounting portion 210 is mounted on the 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 which is connected to the PTO shaft of the traveling machine body 500 and from which power is transmitted from the PTO shaft through 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 that transmits the power from the input shaft to the transmission mechanism is provided. Further, the ridge coating machine 100 is provided with a substantially conical shaped ridge portion for performing the ridge coating work and a drive portion for rotationally driving the ridge portion.

The mounting portion 210 includes lower link connecting portions 211a and 211b and a top link connecting portion 212, and a supporting member 213 to 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 the power transmitted to the input shaft is offset to an offset link. A mechanism for transmitting to the power transmission mechanism of the mechanical portion 230 is also provided in the support member 213. An automatic hitch arm (not shown) may be attached to the lower link connecting portions 211a and 211b and the top link connecting portion 212 to connect the automatic hitch arm and the link mechanism of the traveling machine body 500. ..

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

The offset link mechanism portion 230 has one end supported by the support member 213 of the mounting portion 210 and the other end attached to the ridge coater 100, and includes a link member 231 and an offset frame 232.

The link member 231 is a member whose one end is rotatably supported on the mounting portion 210 side and whose other end is rotatably supported on the ridge coating machine 100 side, and controls the position of the ridge coating machine 100. is there. The offset frame 232 includes winding transmission means for transmitting power to the ridge coater 100 side, and has transmission shafts 232a and 232b provided vertically, and the offset frame 232 is rotatable around the transmission shaft 232a. The ridge coater 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 swinging of the offset link mechanism part 230 in the offset angle θ direction, that is, the ridge coating machine 100 can be offset-moved while maintaining the ridge coating work surface. Become. Thus, the ridge coating machine 100 is attached to the traveling machine body 500, is arranged at a position offset laterally 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.

The ridge applicator 100 has a pretreatment unit 101 having a tilling claw 1 (see FIG. 2) that cuts off a part of an old ridge to perform earthing work, and the soil laid forward by the pretreatment unit 101 is cut down. And a ridge portion 220 for forming new ridges by applying to old ridges. The ridge coater 100 includes a transmission mechanism that distributes the power transmitted to the transmission shaft 232b to the pretreatment unit 101 and the ridge trimming unit 220.

Here, the pretreatment unit 101 can employ a rotary tillage type pretreatment mechanism in which a rotary claw is mounted on a drive shaft, and the heavenfield treatment mechanism (the heavens treatment mechanism) that scrapes off the heavens (upper surface) of old ridges as necessary. A field treatment rotor) may be added. Further, the ridge portion 220 can employ a ridge body including 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.

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

The cover 10 has two flat plate portions 10Z that spread in a direction orthogonal to the tilling shaft 1X, and a side plate portion 10X that is arranged side by side in the substantially circumferential direction of the tilling shaft 1X and forms a side surface of the pretreatment unit 101. However, the two flat plate portions 10Z are arranged and connected so as to sandwich the side plate portion 10X. Further, a through hole 40 communicating with the inside of the cover 10 is formed between the side plate portions 10X.

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

(Contact member and biasing member)
FIG. 3 is an enlarged cross-sectional view showing the positional relationship between the side plate portion 10X, the biasing member 30, and the contact member 20. Here, the contact member 20 and the biasing member 30 are arranged so as to form the side wall of the through hole 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 with a fastener 51 (a bolt 51a and a nut 51b). The upstream portion 30A of the biasing member 30 is attached to the downstream portion 10X2 of the side plate portion 10X of the cover 10 by a fastener 52 (a bolt 52a and a nut 52b).

Further, the contact member 20 is a member that can come into contact with the rotating tillage claw 1 while facing it (see FIG. 2 ). The contact member 20 has elasticity. Various configurations of the layers of the contact member 20 are possible, 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. Made of multi-layer rubber. Alternatively, the contact member 20 may be formed of a single rubber layer. Further, the biasing member 30 can be variously configured to apply a biasing force, but here, it is formed of a leaf spring.

(Gap between multiple contact members)
Here, it returns to FIG. 2 and demonstrates. 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 contact members 20 does not have to be particularly limited and may not be at predetermined intervals, but in the present embodiment, five contact members 20 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 uneven distribution of the amount of soil adhering to each contact member 20.

Further, of the two adjacent contact members 20, one contact member 20 faces each other at the fixing position of the other contact member 20 to the cover 10 (the fastening position by the bolt 51a that is the fastener 51 and the nut 51b). (Overlapping each other). That is, when viewed from the tilling shaft 1X, the one contact member 20 is in a positional relationship of hiding the fixing position of the other contact member 20 adjacent thereto to the cover 10.

(Position of contact member and rotary locus of tiller)
FIG. 4 is a 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 tillage claw 1 are not in contact with each other, the contact member 20 bends inward as being closer to the tilling shaft 1X side toward the tip 20a (the downstream side portion in the rotation direction J) side of the contact member 20. I'm out.

Here, three types of tillage claws 1 are attached to the tillage shaft 1X. The tillage claw 1 includes two having a nail holding portion 1A and a nail 1B, two having a nail holding portion 1C and a nail 1D, and two having a nail holding portion 1E and a nail 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 having a diameter x3. Pass 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. According to this structure, 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, so that soil is unlikely to adhere to the contact member 20. Further, even if the soil adheres to the contact member 20, the vibration of the contact member 20 can reduce the amount of the soil adhered to the contact member 20.

Further, without being limited to the configuration of the present embodiment, the tip 20a of the contact member 20 may be arranged between the rotation locus K2 and the rotation locus K3. It is also possible to dispose the contact portion 30J, which is the portion where the biasing member 30 contacts 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 tilling 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 near the rotation locus K2, and the contact portion 30J of the biasing member 30 is arranged near the rotation locus K1. May be

(Biasing member)
Here, returning to FIGS. 2 and 3, description will be made. The biasing member 30 is provided for the side plate portion 10X of the cover 10 as described above. The urging member 30 urges the contact member 20 toward the tillage shaft 1X side with respect to the rotation locus K of the tip 1a of the tillage claw 1. The biasing member 30 is formed of a leaf spring. The biasing member 30 includes 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 when the tiller claw 1 is stationary. And 30K.

The side plate portion 10X is curved in a direction away from the general tillage shaft 1X from upstream to downstream. Further, the urging member 30 is curved in a direction approaching the rough tillage axis 1X from upstream to downstream. Therefore, a space Z is formed between the side plate portion 10X, the biasing member 30, and the contact member 20 in a cross-sectional view seen from the axial direction of the tillage shaft 1X.

When the tilling claw 1 comes into contact with the contact member 20 and the contact member 20 moves outside the rotation locus K of the tilling claw 1 (direction away from the tilling shaft 1X), the non-contact portion between the contact member 20 and the biasing member 30. The distance M between 30K is narrowed. When the tilling claw 1 comes out of contact with the contact member 20 and the contact member 20 moves inward of the rotation locus K of the tilling claw 1 (direction toward the tilling axis 1X), the contact member 20 and the biasing member 30 are not in contact with each other. The space M between the contact portion 30K is widened. In this way, the space M becomes narrower when the tiller claw 1 rotates and the contact member 20 bends outward, and becomes wider when the contact member 20 bends inward.

The biasing member 30 elastically presses the contact member 20 in the process in which the space M shifts from a narrow state to a wide state. Therefore, if the distance M is too narrow, the biasing member 30 is less likely to be elastically displaced, and if the distance M is wider, the stroke amount (displacement amount) of the biasing member 30 can be increased.

(Proximal end portion to contact portion of biasing member)
The urging member 30 has a portion closer to the tilling shaft 1X of the tilling claw 1 on the downstream side than on the upstream side in the rotation direction J of the tilling claw 1. That is, the biasing member 30 has a portion that inclines inward from the upstream side toward the downstream side.

(Abutting portion to tip of biasing member)
The tip portion 30X2 of the contact portion 30J of the urging member 30 is a portion on the downstream side in the rotation direction J of the tillage claw 1 from the contact position with the contact member 20, and curves toward the direction away from the tillage shaft 1X. ing. By being formed in this manner, it is possible to suppress the phenomenon that the tip of the contact portion 30J of the biasing member 30 sticks into the contact member 20 and fails.

(Operation of ridge coater)
FIG. 5 is a cross-sectional view showing the operation of the ridge coating machine 100. When the tilling claw 1 rotates in the rotation direction J about the tilling shaft 1X, the tilling claw 1 comes into contact with the contact member 20. The contact member 20 is pushed outward, but the biasing member 30 pushes the contact member 20 back toward the tillage shaft 1X (the contact member 20 tries to return to the original position). Then, after the tilling claw 1 passes through the contact member 20, the contact member 20 swings toward the tillage shaft 1X, and the contact member 20 vibrates. Thus, the amount of soil attached to the contact member 20 itself can be reduced by vibrating the contact member 20. Therefore, the amount of soil attached 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, it is possible to reduce the resistance when the tiller claw 1 comes into contact with the contact member 20 due to the rotation of the tiller claw 1, and suppress the abrasion of the tiller claw 1. can do. Furthermore, before and after the ridge coating work, the weight of the ridge coating machine 100 hardly changes, so that the ridge coating work 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 the through-hole 40 formed between the side plate portions 10X, so that the user can stick the stick The soil that has adhered can be dropped by pushing it into the through hole 40 or the like.

(Second embodiment)
FIG. 6(A) is a side view of the pretreatment unit 201 as seen from a direction orthogonal to the axial direction of the tillage shaft 1X of the pretreatment unit 201 included in the ridge coater 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. 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 structure of the first embodiment in that it is a member that is provided on the cover 10 and can contact the rotating tillage claw 1 while facing it. However, the contact member 20 of the present embodiment has an area of the resin 21 having elasticity and an area of the metal 23 that applies a biasing force toward the inner side of the rotation locus K of the tilling claw 1 in that the contact member 20 has an area. The configuration is different from that of the first embodiment. That is, the biasing function exists in the region of the metal 23 in the contact member 20.

Specifically, the contact member 20 has a region of the resin 21 on the side of the tillage claw 1 and a region of the metal 23 on the side opposite to the side of the tillage claw 1. Further, the contact member 20 may be configured such that the resin 21 includes the metal 23. Here, also, the configuration of the region of the resin 21 of the contact member 20 can be variously configured, but it is 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, it is possible to reduce the number of parts that configure the pretreatment unit 201 and reduce the cost, and at the same time, when the contact member 20 vibrates, the soil adhered to the contact member 20 itself is removed. The amount can be reduced. Therefore, the amount of soil attached 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, it is possible to reduce the resistance when the tiller claw 1 comes into contact with the contact member 20 due to the rotation of the tiller claw 1, and suppress the abrasion of the tiller claw 1. can do.

Note that the cover 10 may have both the contact member 20 according to the first embodiment and the contact member 20 according to the second embodiment attached to the cover 10.

1: Cultivating claw, 1a: tip, 1A: claw holding part, 1B: claw holding part, 1C: claw holding part, 1D: claw, 1E: claw holding part, 1F: claw, 1X: tilling shaft, 10: cover, 10X: Side plate portion, 10X1: upstream portion, 10X2: downstream portion, 10Z: flat plate portion, 11: connecting portion, 20: contact member, 20A: upstream portion, 20a: tip, 21: resin, 23: metal, 30: biasing 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 coater, 101: pretreatment section, 220: ridge section, 301: ridge, 500: traveling machine body, J: rotation direction, K, K1, K2, K3: rotation Locus, M: interval, x1, x2, x3: diameter, Z: space

Claims (6)

In a ridge coater that is equipped with a pretreatment unit that cuts off old ridges and performs earthing, and that is attached to a traveling machine body and that progresses with traveling of the traveling machine body to perform ridge coating work,
The pre-processing unit,
A tillage claw that is provided on a tiller shaft that is rotatably supported and that rotates together with the tiller shaft,
A cover for covering the tilling nail,
A contact member provided on the cover, having elasticity, and capable of contacting the tilling claw,
Equipped with
The contact member is an elastic member made of resin or rubber, and a metal that is disposed 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 tillage claw. A ridge coating machine having a member. In a ridge coater that is equipped with a pretreatment unit that cuts off old ridges and performs earthing, and that is attached to a traveling machine body and that progresses with traveling of the traveling machine body to perform ridge coating work,
The pre-processing unit,
A tillage claw that is provided on a tiller shaft that is rotatably supported and that rotates together with the tiller shaft,
A cover for covering the tilling nail,
A contact member provided on the cover, having elasticity, and capable of contacting the tilling claw,
Equipped with
The contact member includes an elastic member made of resin or rubber that faces the tilling claw, and a metal member that urges the elastic member toward the tilling shaft side with respect to the rotation locus of the tip of the tilling claw. The ridge coating machine that has. The elastic member includes a plurality of resin layers or a plurality of rubber layers,
The ridge coater according to claim 1 or 2, wherein canvas is arranged between the plurality of resin layers or the plurality of rubber layers. The ridge coater 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 tilling claw. The ridge coater according to any one of claims 1 to 4, wherein one of the two adjacent contact members has a contact member facing a position where the other contact member is fixed to the cover. The ridge coater according to any one of claims 1 to 5, wherein at least a part of the contact member is located closer to the tilling shaft side than a rotation locus of the tip of the tilling claw.

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