JP2022173777A - harvester - Google Patents

Abstract

To facilitate attachment/detachment of a bottom plate part forming a bottom wall part of a carrier device, in a harvester comprising the carrier device for conveying crops, which are harvested by a harvesting part, in a backward direction of a traveling machine body.SOLUTION: A carrier device 6B comprises a cylindrical carrier case 13, and a detachable bottom plate part 20 that forms a bottom wall part 13a of the carrier case 13. An attachment part 22 for attaching/detaching the bottom plate part 20 is provided in a lower part of a lateral side part of the carrier case 13.SELECTED DRAWING: Figure 2

Description

The present invention comprises a harvesting section positioned in front of a traveling machine body for harvesting crops in a field, and a conveying device connected to the harvesting section for conveying the crops harvested by the harvesting section toward the rear of the traveling machine body. Concerning equipped harvesters.

In some of the harvesters described above, the conveying device includes a cylindrical conveying case and a detachable bottom plate portion forming a bottom wall portion of the conveying case.
As a harvester of this type, there is a combine disclosed in Patent Document 1. The combine disclosed in Patent Document 1 is provided with a lid as a bottom plate.

JP 2018-88899 A

Conventionally, a mounting portion for attaching and detaching the bottom plate portion is provided on the bottom wall portion, the bottom plate portion is attached to the mounting portion by pressing the bottom plate portion against the mounting portion from below, and tightening the connecting bolt that penetrates the bottom plate portion from below to the mounting portion. Therefore, in order to attach and detach the bottom plate portion, it is necessary to enter the narrow working space below the carrying case to perform the attachment and detachment operation, which makes it difficult to attach and detach.

The present invention provides a harvester in which the bottom plate can be easily attached and detached.

The harvester according to the invention comprises:
A harvesting section positioned in front of the traveling machine body for harvesting crops in a field, and a conveying device connected to the harvesting section for conveying the crops harvested by the harvesting section toward the rear of the traveling machine body, The conveying device includes a cylindrical conveying case and a detachable bottom plate portion forming a bottom wall portion of the conveying case, and mounting portions for attaching and detaching the bottom plate portion are provided at lateral side portions of the conveying case. located at the bottom.

With this configuration, a wide work space is secured on the lateral outside of the transport case, and the operation of attaching the bottom plate to the mounting portion and the operation of removing the bottom plate from the mounting portion can be performed under the wide work space. easy.

In the present invention,
An end portion of the bottom plate portion on the side opposite to the side to be attached and detached from the attachment portion is detachably locked to the lower portion of the lateral side portion of the carrying case opposite to the side on which the attachment portion is located. It is preferable if a locking portion is provided.

According to this configuration, the end portion of the bottom plate portion opposite to the side to be attached to the attachment portion can be attached to the engagement portion simply by being engaged with the engagement portion, and can be engaged by simply disengaging from the engagement portion. Since it can be taken out from the part, it is easy to attach and detach the bottom plate part to and from the engaging part.

In the present invention,
It is preferable that the bottom plate portion is provided with a handle extending from the bottom plate portion to the lateral outside of the carrying case through below the mounting portion.

According to this configuration, the bottom plate can be supported by the handle while being aligned with the mounting part, and the handle can be easily held on the lateral outside of the carrying case, so that the bottom plate can be attached and detached more easily. become.

In the present invention,
It is preferable that a bolt for fastening and fixing the bottom plate portion to the mounting portion is provided, and the bolt is configured to be tightened in a direction along the lateral width direction of the transport case from the lateral outer side of the transport case.

According to this configuration, the bottom plate portion can be attached to the mounting portion by tightening the bolt that attaches the bottom plate portion to the mounting portion toward the inside in the width direction of the transport case, and the bolt is oriented outward in the width direction of the transport case. Since the bottom plate portion can be removed from the attachment portion by loosening it, the attachment and detachment of the bottom plate portion is facilitated.

It is a left view which shows the whole combine. It is a vertical cross-sectional rear view of a conveying apparatus.

An embodiment, which is an example of the present invention, will be described below with reference to the drawings.
In the following description, regarding a traveling machine body of a combine harvester (an example of a "harvester"), the direction of arrow F shown in FIG. , the direction of arrow D is defined as "bottom", the direction toward the front side of the paper is defined as "left side", and the direction toward the back side of the paper is defined as "right side".

[Overall of a combine harvester]
As shown in FIG. 1, a combine harvester has a body frame 1 constructed by connecting a plurality of steel materials such as square pipe materials, and a pair of left and right crawler type traveling devices 2 provided at the bottom of the body frame 1. It has body 3. A driving unit 5 having a cabin 4 that covers a boarding space and a harvesting and conveying unit 6 that harvests crops such as rice and wheat in a field and conveys the harvested crops to the rear of the machine are provided at the front of the traveling machine 3. ing. A threshing device that receives the entire crop (all culms from the base to the tip) conveyed by the harvesting and conveying unit 6 at the rear of the traveling body 3, subjects the received crop to threshing, and sorts the threshed product. 7 and a grain tank 8 for collecting and storing grains obtained by the threshing device 7 are provided. A discharge device 9 for discharging the grains stored in the grain tank 8 is connected to the rear portion of the grain tank 8 .

[Configuration of Harvest Conveyor]
As shown in FIG. 1, the harvesting/conveying unit 6 includes a harvesting unit 6A which is provided in the front part of the harvesting/conveying unit 6 and positioned in front of the traveling machine body 3 for harvesting the crops in the field, and a harvesting unit 6A. A conveying device 6B having a front portion connected to a rear portion and conveying crops harvested by the harvesting portion 6A in the rearward direction of the traveling machine body is provided.

[Construction of Harvesting Section]
As shown in FIG. 1, the harvesting unit 6A includes a rotary reel 10 for raking the crops to be planted with the tip side facing backward, and a clipper-type reaping device for cutting the roots of the crops gathered by the rotary reel 10. 11. A lateral feed auger 12 is provided for laterally transporting the harvested crops toward the transport device 6B.

[Construction of Conveying Device]
As shown in FIG. 1, the conveying device 6B includes a cylindrical conveying case 13 that extends rearward from the rear portion of the harvesting section 6A and guides the harvested crops from the harvesting section 6A toward the threshing device 7; A conveyor 14 is drivably provided inside the conveying case 13 and guided by the conveying case 13 to convey the harvested crops from the harvesting section 6</b>A and throw them into the threshing section of the threshing device 7 .

As shown in FIGS. 1 and 2, the conveyor 14 includes a pair of endless rotatable chains 15 which are rotatably mounted inside the carrying case 13 while being spaced apart in the width direction of the carrying case 13 . , and conveying members 16 that are attached across the pair of endless rotating chains 15 at a plurality of locations in the longitudinal direction of the endless rotating chains 15 and that hold and transport the harvested crops. A pair of endless rotating chains 15 are wound around a driven wheel 17 provided in the front end of the carrying case 13 and a driving wheel 18 provided in the rear end of the carrying case 13 . The endless rotating chain 15 is driven by the drive wheel 18 to transport the conveying member 16 .

As shown in FIGS. 1 and 2, the carrying case 13 has a bottom wall portion 13a, side wall portions 13b rising from both lateral sides of the bottom wall portion 13a, and an upper portion connected to the upper portions of the left and right side wall portions 13b. and a wall portion 13c.

As shown in FIG. 1, inspection openings 19 are opened at two locations in the transport case front-rear direction of the side wall portion 13b of the transport case 13 to enable maintenance inside the transport case such as inspection of the conveyor 14. As shown in FIG.

As shown in FIG. 1, detachable bottom plate portions 20 are provided at two locations in the transport case front-rear direction of the bottom wall portion 13a of the transport case 13. As shown in FIG. As shown in FIG. 2, each of the two bottom plate portions 20 is removed to open an opening 21 provided in the bottom wall portion 13a to allow maintenance inside the carrying case. , to close the opening 21 and form the bottom wall portion 13a.

At locations corresponding to the two bottom plate portions 20 of the transport case 13, as shown in FIG. 22 is provided, and an engaging portion 23 capable of engaging and disengaging the bottom plate portion 20 is provided at the lower portion of the right lateral side portion of the carrying case 13 so that the bottom plate portion 20 can be attached and detached.

As shown in FIG. 2, the mounting portion 22 includes a connecting portion 22a extending from the upper portion of the mounting portion 22 toward the inside of the carrying case 13. By connecting the connecting portion 22a to the bottom wall portion 13a, the carrying case 13 is attached to the bottom wall portion 13a. is provided in The connecting portion 22a is connected to the bottom wall portion 13a by welding.

As shown in FIG. 2, the mounting portion 22 is configured such that the bottom plate portion 20 can be mounted by fastening the left end portion 20a of the bottom plate portion 20 to the mounting portion 22 with a bolt 24. As shown in FIG. The mounting portion 22 is configured such that the bottom plate portion 20 can be removed by releasing the fixing of the left end portion 20 a to the mounting portion 22 with the bolt 24 . As shown in FIG. 1, the bottom plate portion 20 on the front side is configured such that three bolts 24 are attached to the attachment portion 22 so as to be aligned in the front-rear direction. In the bottom plate portion 20 on the rear side, two bolts 24 are attached to the attachment portion 22 so as to be aligned in the front-rear direction. In this embodiment, two or three bolts 24 are used, but four or more bolts can be used.

As shown in FIG. 2, the bolt 24 is inserted into the bolt hole provided in the mounting portion 22 from the left lateral outside of the carrying case 13 and is tightened along the width direction of the carrying case 13 to attach the bottom plate. It is configured to engage with a threaded hole forming member 25 provided at the left end portion 20 a of the portion 20 to fix the bottom plate portion 20 to the mounting portion 22 by tightening.

As shown in FIG. 2, the engaging portion 23 has a connecting portion 23a extending from the upper portion of the engaging portion 23 toward the inside of the carrying case 13. By connecting the connecting portion 23a to the bottom wall portion 13a, the carrying case 13 is transported. It is provided in case 13 . The connecting portion 23a is connected to the bottom wall portion 13a by welding.

As shown in FIG. 2, the locking portion 23 is configured such that the bottom plate portion 20 is locked by inserting the right end portion 20b of the bottom plate portion 20 into the locking portion 23 from the lower left. The engaging portion 23 is configured such that the bottom plate portion 20 is separated when the right end portion 20b of the bottom plate portion 20 is extracted from the engaging portion 23 to the lower left. The locking portion 23 is provided in an inclined posture that is positioned downward toward the downstream side of the insertion direction of the right end portion 20 b , so that the right end portion 20 b can be easily aligned with the insertion opening of the locking portion 23 .

Each of the two bottom plate portions 20 is attached according to the following attachment procedure.
As shown in FIG. 2, the bottom plate portion 20 is inserted below the carrying case 13 from the left lateral outside of the carrying case 13, and the right end portion 20b of the bottom plate portion 20 is inserted into the locking portion 23 from the lower left side and locked. Next, the left end portion 20a of the bottom plate portion 20 is lifted and aligned with the mounting portion 22, and the bolts 24 are inserted into the bolt holes of the mounting portion 22 from the left lateral outside of the carrying case 13, and bolts are inserted in the direction along the width direction of the carrying case 13. Next, the screw hole forming member 25 of the bottom plate portion 20 is tightened by tightening toward the bottom plate portion 20 , and the left end portion 20 a of the bottom plate portion 20 is tightened to the mounting portion 22 to mount the bottom plate portion 20 to the mounting portion 22 .

When removing each of the two bottom plate portions 20, the work is performed in the reverse order of the steps for attaching. That is, the left end portion 20a of the bottom plate portion 20 is unfixed from the mounting portion 22 by the bolt 24, and the left end portion 20a is separated from the mounting portion 22 downward. Next, the bottom plate portion 20 is moved toward the left lateral outside of the transport case 13 to separate the right end portion 20b of the bottom plate portion 20 from the locking portion 23, and the bottom plate portion 20 is moved from below the transport case 13. Take it out on the left side.

As shown in FIGS. 1 and 2 , each of the two bottom plate portions 20 is provided with a handle 26 extending from the bottom plate portion 20 to the left lateral outside of the carrying case 13 through below the mounting portion 22 . When attaching and detaching the bottom plate portion 20, by supporting the bottom plate portion 20 using the handle 26, it is easy to align the left end portion 20a with the mounting portion 22 and engage and disengage the right end portion 20b with the locking portion 23. .

[Another embodiment]
(1) In the above-described embodiment, an example was shown in which the mounting portion 22 was provided in a state in which it is located slightly inside the carrying case 13 rather than the side wall portion 13b, but the present invention is not limited to this. The attachment portion 22 may be provided at the lower portion of the side wall portion 13b itself. Further, the attachment portion 22 may be provided in a state of extending downward from the side wall portion 13b.

(2) In the above-described embodiment, the mounting portion 22 is provided at the bottom of the left lateral side of the carrying case 13, and the locking portion 23 is provided at the bottom of the right lateral side of the carrying case 13. Alternatively, the mounting portion 22 may be provided at the bottom of the right lateral side of the carrying case 13 and the locking portion 23 may be provided at the bottom of the left lateral side of the carrying case 13 .

(3) In the above-described embodiment, the locking portion 23 is configured so that the right end portion 20b of the bottom plate portion 20 is inserted. Any locking structure may be provided, such as a support hole provided on one side and a projection provided on the other side of the bottom plate portion 20 and the carrying case 13 in a state of engagement with the support hole.

(4) In the above-described embodiment, the example provided with the handle 26 was shown, but the handle 26 may not be provided.

(5) In the above-described embodiment, an example is shown in which the bolts 24 are tightened along the width direction of the transport case 13, but the present invention is not limited to this. For example, the end of the bottom plate 20 and the mounting portion 22 may overlap in the vertical direction, and a bolt that is tightened along the vertical direction of the carrying case 13 may be employed. Further, it is possible to adopt a configuration in which the end portion of the bottom plate portion 20 and the mounting portion 22 overlap in the front-rear direction, and bolts are tightened in the direction along the front-rear direction of the transport case 13 . Fasteners other than bolts, such as snap locks, can also be used. In other words, any fastener that can be connected and disconnected laterally outside the carrying case 13 can be used.

INDUSTRIAL APPLICABILITY The present invention can be applied to a harvesting machine provided with a harvesting section for harvesting crops in a field, and a conveying device connected to the harvesting section for conveying the crops harvested by the harvesting section in the backward direction of the traveling machine body.

6A Harvesting part 6B Conveying device 13 Conveying case 13a Bottom wall part 20 Bottom plate part 20b End (right end)
22 Mounting portion 23 Locking portion 24 Bolt 26 Handle

Claims (4)

A harvesting unit located in front of the traveling machine that harvests the crops in the field;
a conveying device that is connected to the harvesting unit and conveys the crops harvested by the harvesting unit in the rearward direction of the traveling body;
The conveying device includes a cylindrical conveying case and a detachable bottom plate portion forming a bottom wall portion of the conveying case,
A harvester, wherein a mounting portion for detaching the bottom plate portion is provided at a lower portion of a lateral side portion of the transport case. An end portion of the bottom plate portion on the side opposite to the side to be attached and detached from the attachment portion is detachably locked to the lower portion of the lateral side portion of the carrying case opposite to the side on which the attachment portion is located. 2. The harvester according to claim 1, further comprising a locking portion. 3. The harvester according to claim 1, wherein the bottom plate portion is provided with a handle extending from the bottom plate portion to the lateral outside of the carrying case through below the mounting portion. A bolt is provided for tightening and fixing the bottom plate portion to the mounting portion,
The harvester according to any one of claims 1 to 3, wherein the bolt is configured to be tightened from the lateral outside of the transport case in a direction along the lateral width direction of the transport case.

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