JP7178967B2 - harvester - Google Patents

Description

The present invention relates to the construction of a grain reservoir in a harvester.

As a harvester, as disclosed in Patent Document 1, a box-shaped grain storage unit for storing grains and a conveying device for throwing threshed grains into the grain storage unit. There is something established.

Japanese Patent Application Laid-Open No. 2019-4762 (see FIGS. 5 and 6)

When grains are thrown into a grain storage unit having a relatively large volume from a conveying device, in order to allow grains to be thrown into a region far from the conveying device in the grain storage unit, The conveying device should be operated such that the grains are thrown from the conveying device at a relatively high speed.
When the conveying device operates in this manner, the grains may hit a region of the inner surface of the grain storage portion close to the conveying device, and the inner surface of the grain storage portion may be worn.

SUMMARY OF THE INVENTION An object of the present invention is to provide a harvester capable of appropriately coping with progress of wear of the inner surface of the grain storage section.

A harvesting machine of the present invention includes a box-shaped grain storage unit for storing grains, and a conveying device for throwing threshed grains into the grain storage unit. A detachable liner is provided on a portion of the inner surface of the portion where the grains thrown by the conveying device are to be thrown , and the grain throwing portion of the conveying device is attached to the grain storage portion. provided on one of the plurality of vertical wall portions and on the inner surface of the vertical wall portion facing the throwing portion among the plurality of vertical wall portions of the grain storage portion, at a position facing the throwing portion, A vertical wall liner is provided as the liner, and the vertical wall facing the throwing part from the ceiling part over the ceiling part of the grain storage part and the upper end part of the vertical wall part facing the throwing part A vertical wall liner is detachably attached only to the inner surface of the inclined wall portion, and the vertical wall facing the inner surface of the inclined wall portion and the throwing portion is provided. It is arranged over the inner surface of the part.

According to the present invention, the inner surface of the grain storage unit is provided with a liner on the portion where the grains thrown by the conveying device are to be thrown. Many grains will hit the liner.
As a result, the number of grains that directly hit the inner surface of the grain storing portion is reduced, and the progression of wear of the inner surface of the grain storing portion is suppressed, so that the durability of the grain storing portion is improved. As the wear of the liner progresses, it can be replaced with a new liner.

According to the present invention, a liner is provided on the portion of the inner surface of the grain storage unit that is positioned where the grains thrown in by the conveying device are to be thrown, and the liner is provided on the entire inner surface of the grain storage unit. This is advantageous in terms of structural simplification.

Among the plurality of vertical wall portions of the grain storage portion, when the grain throwing portion of the conveying device is provided in one vertical wall portion of the grain storage portion, the vertical wall portion facing the grain throwing portion of the grain storage portion. In addition, the frequency with which the grains thrown from the conveying device hit is high.

In the above-described state, according to the present invention, a vertical wall liner is provided as a liner on the inner surface of the vertical wall portion facing the throwing portion, out of the plurality of vertical wall portions of the grain storage portion. A vertical wall liner is provided at a position of the opposed vertical wall portion facing the throwing portion.
As a result, the vertical wall liner is not provided on the entire inner surface of the vertical wall portion facing the throwing portion, but the vertical wall liner is provided on the necessary portion of the inner surface of the vertical wall portion facing the throwing portion. As a result, a vertical wall liner larger than necessary is not provided, which is advantageous in terms of structural simplification.

In the box-shaped grain storage part, an inclined wall part that descends from the ceiling part toward the upper end part of the vertical wall part may be provided across the ceiling part and the vertical wall part of the grain storage part.
According to the present invention, when the vertical wall liner is provided on the vertical wall portion facing the throwing portion, the vertical wall liner is detachably attached only to the inner surface of the inclined wall portion so that the vertical wall liner is attached to the inner surface of the inclined wall portion and the throwing portion. It is arranged over the inner surface of the opposing vertical wall portion.

As a result, the vertical wall liner is arranged over the inner surface of the inclined wall portion and the inner surface of the vertical wall portion facing the throwing portion, so that the vertical wall liner is in a bent state. It is advantageous in terms of improvement.
Since the vertical wall liner is attached only to the inner surface of the inclined wall portion, the number of connecting members such as bolts is reduced, which is advantageous in terms of structural simplification.

Since, according to the present invention, the wall liner is not attached to the inner surface of the wall of the grain reservoir, there may be a gap between the wall liner and the wall facing the throwing portion.
In this case, since the gap between the vertical wall liner and the vertical wall facing the throwing part is open downward, there is no possibility that the grains thrown from the conveying device will enter the gap. Even if the grains are small and get into the gaps, the grains tend to fall downward.

A harvesting machine of the present invention includes a box-shaped grain storage unit for storing grains, and a conveying device for throwing threshed grains into the grain storage unit. A detachable liner is provided on a portion of the inner surface of the grain storage unit that is positioned where the grain thrown in by the conveying device is to be thrown, and the grain throwing portion of the conveying device is arranged in a plurality of the grain storage units. provided on one of the vertical wall portions of the grain storage portion, and on the inner surface of the vertical wall portion facing the throwing portion among the plurality of vertical wall portions of the grain storage portion, at a position facing the throwing portion, the A vertical wall liner is provided as a liner, and the vertical wall portion facing the throwing portion from the ceiling portion across the ceiling portion of the grain storage portion and the upper end portion of the vertical wall portion facing the throwing portion an angled wall portion descending toward the upper end of the liner, the inner surface angle formed by the inner surface of the angled wall portion and the inner surface of the vertical wall portion facing the throwing portion, and the angled wall in the vertical wall liner; The vertical wall liner is formed such that the liner angle is larger than the internal surface angle at a liner angle formed by a portion along the inner surface of the projection and a portion along the inner surface of the vertical wall portion facing the throwing portion. It is provided over the inner surface of the inclined wall portion and the inner surface of the vertical wall portion facing the throwing portion while being elastically deformed in the folded state.

According to the present invention, the inner surface of the grain storage unit is provided with a liner on the portion where the grains thrown by the conveying device are to be thrown. Many grains will hit the liner.
As a result, the number of grains that directly hit the inner surface of the grain storing portion is reduced, and the progression of wear of the inner surface of the grain storing portion is suppressed, so that the durability of the grain storing portion is improved. As the wear of the liner progresses, it can be replaced with a new liner.
According to the present invention, a liner is provided on the portion of the inner surface of the grain storage unit that is positioned where the grains thrown in by the conveying device are to be thrown, and the liner is provided on the entire inner surface of the grain storage unit. This is advantageous in terms of structural simplification.
Among the plurality of vertical wall portions of the grain storage portion, when the grain throwing portion of the conveying device is provided in one vertical wall portion of the grain storage portion, the vertical wall portion facing the grain throwing portion of the grain storage portion. In addition, the frequency with which the grains thrown from the conveying device hit is high.
In the above-described state, according to the present invention, a vertical wall liner is provided as a liner on the inner surface of the vertical wall portion facing the throwing portion, out of the plurality of vertical wall portions of the grain storage portion. A vertical wall liner is provided at a position of the opposed vertical wall portion facing the throwing portion.
As a result, the vertical wall liner is not provided on the entire inner surface of the vertical wall portion facing the throwing portion, but the vertical wall liner is provided on the necessary portion of the inner surface of the vertical wall portion facing the throwing portion. As a result, a vertical wall liner larger than necessary is not provided, which is advantageous in terms of structural simplification.
In the box-shaped grain storage part, an inclined wall part that descends from the ceiling part toward the upper end part of the vertical wall part may be provided across the ceiling part and the vertical wall part of the grain storage part.
According to the present invention, when the vertical wall liner is provided on the vertical wall portion facing the throwing portion, the vertical wall liner is bent along the inner surface of the inclined wall portion and the inner surface of the vertical wall portion facing the throwing portion. It is provided over the inner surface of the inclined wall portion and the inner surface of the vertical wall portion facing the throwing portion.

As a result, the vertical wall liner is arranged over the inner surface of the inclined wall portion and the inner surface of the vertical wall portion facing the throwing portion, so that the vertical wall liner is in a bent state. It is advantageous in terms of improvement.

According to the present invention, the inner surface angle formed by the inner surface of the inclined wall portion and the inner surface of the vertical wall portion facing the throwing portion, and the portion of the vertical wall liner along the inner surface of the inclined wall portion and the vertical angle facing the throwing portion. The vertical wall liner is formed such that, before the vertical wall liner is provided, the vertical wall liner angle is greater than the internal surface angle at the liner angle formed by the portion along the inner surface of the wall.
In this state, the vertical wall liner is elastically deformed and provided over the inner surface of the inclined wall portion and the inner surface of the vertical wall portion facing the throwing portion. It is easy to obtain a state of being in close contact with the inner surface of the vertical wall portion facing the .

This reduces the occurrence of gaps between the vertical wall liner and the inclined wall portion and between the vertical wall liner and the vertical wall portion facing the throwing portion, so that grains thrown from the conveying device can be thrown away. , between the vertical wall liner and the slanted wall portion, or between the vertical wall liner and the vertical wall portion facing the throwing portion.

A harvesting machine of the present invention includes a box-shaped grain storage unit for storing grains, and a conveying device for throwing threshed grains into the grain storage unit. A detachable liner is provided on a portion of the inner surface of the grain storage unit that is positioned where the grain thrown in by the conveying device is to be thrown, and the grain throwing portion of the conveying device is arranged in a plurality of the grain storage units. provided on one of the vertical wall portions of the grain storage portion, and on the inner surface of the vertical wall portion facing the throwing portion among the plurality of vertical wall portions of the grain storage portion, at a position facing the throwing portion, the A vertical wall liner is provided as a liner, and the throwing part is provided with a blade member that is driven to rotate about an axis along the vertical direction and throws the grain, and a case that covers the outside of the blade member. A wear-preventing member for preventing wear of the case is provided on the inner surface of the case, and a guide portion for guiding grains thrown by the blade members toward the vertical wall liner is provided on the wear-preventing member. are

According to the present invention, the inner surface of the grain storage unit is provided with a liner on the portion where the grains thrown by the conveying device are to be thrown. Many grains will hit the liner.
As a result, the number of grains that directly hit the inner surface of the grain storing portion is reduced, and the progression of wear of the inner surface of the grain storing portion is suppressed, so that the durability of the grain storing portion is improved. As the wear of the liner progresses, it can be replaced with a new liner.
According to the present invention, a liner is provided on the portion of the inner surface of the grain storage unit that is positioned where the grains thrown in by the conveying device are to be thrown, and the liner is provided on the entire inner surface of the grain storage unit. This is advantageous in terms of structural simplification.
Among the plurality of vertical wall portions of the grain storage portion, when the grain throwing portion of the conveying device is provided in one vertical wall portion of the grain storage portion, the vertical wall portion facing the grain throwing portion of the grain storage portion. In addition, the frequency with which the grains thrown from the conveying device hit is high.
In the above-described state, according to the present invention, a vertical wall liner is provided as a liner on the inner surface of the vertical wall portion facing the throwing portion, out of the plurality of vertical wall portions of the grain storage portion. A vertical wall liner is provided at a position of the opposed vertical wall portion facing the throwing portion.
As a result, the vertical wall liner is not provided on the entire inner surface of the vertical wall portion facing the throwing portion, but the vertical wall liner is provided on the necessary portion of the inner surface of the vertical wall portion facing the throwing portion. As a result, a vertical wall liner larger than necessary is not provided, which is advantageous in terms of structural simplification.
The grain throwing portion of the conveying device may be provided with a blade member that throws the grain by being rotationally driven around an axis extending in the vertical direction, and a case that covers the outside of the blade member.
According to the present invention, the wear prevention member is provided on the inner surface of the case to prevent wear of the case, thereby improving the durability of the throwing portion.

According to the present invention, the grain thrown by the vane member of the throwing portion is guided toward the vertical wall liner by the guide portion provided in the wear-resistant member, so that the grain hits the inner surface of the grain storage portion directly. is reduced and the durability of the grain reservoir is improved.
The anti-wear member has the function of preventing wear of the case and the function of guiding the grain toward the vertical wall liner, which is advantageous in terms of structural simplification.

In the present invention, it is preferable that the wear prevention member is provided with a guide portion that guides the grains thrown by the blade members to a region of the grain storage portion that is laterally away from the vertical wall liner. be.

According to the present invention, the antiwear member is provided with a guide portion for guiding the grain thrown by the blade members of the throwing portion toward the vertical wall liner, and the grain thrown by the blade members of the throwing portion is provided. A guide is provided to guide the grain to a region of the grain reservoir laterally spaced from the vertical wall liner so that the grain is more likely to be dumped into a region of the grain reservoir remote from the conveying device.
This makes it easier for the grains to be evenly thrown into the grain storage unit, and makes it easy for the grains to be evenly thrown into each area of the grain storage unit.

The antiwear member functions to prevent wear of the case, to guide the grain toward the vertical wall liner, and to guide the grain to a region of the grain storage unit far from the conveying device. Therefore, it is advantageous in terms of structural simplification.

A harvesting machine of the present invention includes a box-shaped grain storage unit for storing grains, and a conveying device for throwing threshed grains into the grain storage unit. A detachable liner is provided on a portion of the inner surface of the grain storage unit where the grains thrown by the conveying device are to be thrown, and the ceiling liner as the liner is provided on the inner surface of the ceiling portion of the grain storage unit. The grain throwing portion of the conveying device is provided on one of the plurality of vertical wall portions of the grain storage portion, and the ceiling portion is detachably provided on the grain storage portion and the end of the ceiling liner opposite the throw portion extends downwardly from the inner surface of the ceiling portion.

According to the present invention, the inner surface of the grain storage unit is provided with a liner on the portion where the grains thrown by the conveying device are to be thrown. Many grains will hit the liner.
As a result, the number of grains that directly hit the inner surface of the grain storing portion is reduced, and the progression of wear of the inner surface of the grain storing portion is suppressed, so that the durability of the grain storing portion is improved. As the wear of the liner progresses, it can be replaced with a new liner.
According to the present invention, a liner is provided on the portion of the inner surface of the grain storage unit that is positioned where the grains thrown in by the conveying device are to be thrown, and the liner is provided on the entire inner surface of the grain storage unit. This is advantageous in terms of structural simplification.
According to the present invention, since the ceiling liner as a liner is provided on the ceiling of the grain storage unit, which is the portion where the grains thrown by the conveying device are thrown, the inner surface of the ceiling is prevented from being worn. Progression is suppressed, and the durability of the grain storage part is improved.
In the grain storage unit, the ceiling may be configured to be detachable in terms of maintenance of the grain storage unit. In this case, there is a possibility that the grain thrown from the conveying device will enter the gap formed in the portion of the ceiling opposite to the throwing portion.
According to the present invention, in the ceiling liner provided on the inner surface of the ceiling part, the end opposite to the throwing part extends downward from the inner surface of the ceiling part, so that the grain thrown from the conveying device is , the grains are more likely to hit the extended portion of the ceiling liner and be guided downward, and the possibility of the grains entering the gap formed in the portion of the ceiling portion opposite to the throwing portion is reduced.

In the present invention, it is preferable that a reinforcing member is provided on the ceiling portion, and the ceiling liner is provided on the inner surface of the ceiling portion at the position of the reinforcing member.

According to the present invention, when a reinforcing member is provided in the ceiling portion, the ceiling liner is also reinforced by the reinforcing member, which is advantageous in terms of improving the rigidity of the ceiling liner.

It is a right view of a combine. It is a top view of a combine. It is a right side view near a grain hopper. It is a rear view near a grain hopper. Fig. 3 is an exploded perspective view of the vicinity of the grain hopper; It is a top view of a guard part. FIG. 4 is a cross-sectional view of a connection portion between the first frame and the second frame in the guard section; 1 is a cross-sectional plan view of a grain hopper; FIG. Fig. 2 is a longitudinal front view of the upper portion of the grain hopper; Fig. 2 is a plan view of the grain hopper and canopy; It is the figure which looked at the inner surface (lower surface) near the ceiling liner of the ceiling part in a grain hopper from the lower side. Fig. 10 is a side view of the vertical wall liner; Fig. 10 is a rear view of the vertical wall liner; It is a perspective view near the throwing part of a conveying apparatus. It is a perspective view of the vicinity of the canopy. It is a longitudinal rear view of the vicinity of the canopy and support members.

1 to 16 show a common type combine harvester for rice as an example of a harvester. Directions are indicated, D indicating downward, R indicating rightward, and L indicating leftward.

(Overall configuration of combine harvester)
As shown in FIGS. 1 and 2, a machine body 1 is supported by right and left crawler type traveling devices 2, a driving section 3 is provided on the right front part of the machine body 1, and a threshing device 4. is provided at the rear left portion of the machine body 1 , and a grain hopper 5 (corresponding to a grain storage section) is provided at the rear right portion of the machine body 1 . A feeder 6 is connected to the front part of the threshing device 4 and extends forward, and a reaping part 7 is connected to the front part of the feeder 6 .

The combine harvester is configured with the above configuration, and the crops in the field are harvested by the harvesting unit 7, conveyed through the feeder 6, and supplied to the threshing device 4, where they are threshed. Grain is put into the grain hopper 5 .

(Configuration for supporting grain hopper)
As shown in FIGS. 1, 3, 4 and 5, a workbench 8 is connected to the rear right portion of the fuselage 1, and four support frames 9 are connected to the front and rear of the workbench 8. is extended upwards.
Front and rear horizontal frames 10 are connected along the left-right direction over the upper part of the front support frame 9 and connected over the upper part of the rear support frame 9 along the left-right direction.

A handrail frame 11 is connected along the front-rear direction across the right portions of the front and rear horizontal frames 10, and a vertical frame 12 is connected along the front-rear direction across the left portions of the front and rear horizontal frames 10. connected along. A support frame 13 is connected across the right vertical wall of the threshing device 4 and the vertical frame 12 .

Front and rear support brackets 14 are connected to the front and rear transverse frames 10 , the grain hopper 5 is connected to the support brackets 14 , and the grain hopper 5 is supported on the machine body 1 via the support frame 9 . It is

(Configuration of Grain Hopper)
As shown in FIGS. 3, 4, and 5, the grain hopper 5 is configured in a box shape by combining plate materials, and includes a right vertical wall portion 15, a left vertical wall portion 16, and a front vertical wall portion 17. , a rear vertical wall portion 18, a ceiling portion 19, a funnel portion 20, and the like.

An inclined wall portion 21 extending downward from the ceiling portion 19 toward the upper end portion of the vertical wall portion 15 is provided across the ceiling portion 19 and the upper end portion of the vertical wall portion 15, and the ceiling portion 19 is bolted to the grain. It is attachable to and detachable from the grain hopper 5 .

As shown in FIGS. 5, 9, and 10, the ceiling portion 19 is in the shape of a rectangular flat plate in plan view, and four edge portions thereof are bent upward to form reinforcing ribs 19a and 19b. ing. On the upper surface of the ceiling portion 19, elongated flat plate-like reinforcing members 22 and 23 are connected along the left-right direction across the ribs 19a and 19b of the ceiling portion 19 to the front portion of the ceiling portion 19 from the central portion in the front-rear direction. It is

On the upper surface of the ceiling portion 19, a slender flat plate-like reinforcing member 24 is connected along the left-right direction across the ribs 19a and 19b of the ceiling portion 19 to the rear portion of the ceiling portion 19 from the central portion in the front-rear direction. ing. A thin rubber plate-shaped receiving member 25 is attached to the upper surfaces of the reinforcing members 23 and 24 .

As shown in FIGS. 3, 5 and 8, three downwardly converging funnels 20 are connected to the lower ends of the vertical walls 15-17. A rectangular tube-shaped discharge portion 26 is connected downward to the lower portion of the funnel portion 20 , and a shutter 27 capable of manually opening and closing the discharge portion 26 is provided on the discharge portion 26 . An observation window 28 through which the inside of the grain hopper 5 can be visually observed from the outside is provided in a portion of the vertical wall portion 15 located above the rearmost funnel portion 20 .

As shown in FIGS. 1 and 2, the support frame 29 is connected to the vertical wall portion 17 and extends forward. supported by

(Construction of a conveying device that puts grains from a threshing device into a grain hopper)
As shown in FIGS. 1, 2, and 4, a conveying device 31 is provided across the lower portion of the threshing device 4 and the grain hopper 5, and the grains threshed by the threshing device 4 are transferred to the conveying device 31. , thrown from the transport device 31 and put into the grain hopper 5 . The conveying device 31 has a conveying portion 32 connected to the grain outlet at the bottom of the threshing device 4 and extending upward, a throwing portion 33 connected to the upper end portion of the conveying portion 32, and the like.

As shown in FIGS. 8 and 9, the conveying portion 32 has a round pipe shape, a conveying shaft 34 is disposed inside the conveying portion 32, and a spiral conveying body 35 is connected to the conveying shaft 34. . As the conveying shaft 34 is rotated clockwise in FIG. 8 around an axis P1 extending in the vertical direction, grains supplied from the lower outlet of the threshing device 4 to the lower portion of the conveying section 32 are transferred to the conveying body. 35 and is conveyed upward inside the conveying section 32 .

In the grain hopper 5, an opening 16a is formed in a portion of the vertical wall portion 16 located above the funnel portion 20 on the frontmost side. A conveying shaft 34 extends upward so as to enter the throwing portion 33 .

The throwing part 33 has a blade member 36 that is connected to the upper end of the transport shaft 34 and is integrally driven to rotate about the axis P1 with the transport shaft 34, a case 37 that covers the outside of the blade member 36, and the like. A case 37 is connected to the opening 16 a of the vertical wall portion 16 . Thus, the grain throwing portion 33 of the conveying device 31 is provided on one vertical wall portion 16 of the plurality of vertical wall portions 15 to 18 of the grain hopper 5 .

When the grain is conveyed upward inside the conveying section 32 on the conveying body 35 and reaches the throwing section 33, the grain is driven to rotate about the axis P1 in the clockwise direction in FIG. Grain is thrown into the grain hopper 5 and thrown into the area of each of the three funnels 20 in the grain hopper 5 .

(Arrangement of vertical wall liner provided on the vertical wall of the grain hopper)
A detachable vertical wall liner 38 (corresponding to a liner) is attached to a portion of the inner surface of the grain hopper 5 where grains thrown by the throwing section 33 of the conveying device 31 are thrown, as described below. is provided.

As shown in FIGS. 8 and 9, the inner surface of the vertical wall portion 15 facing the throwing portion 33 and the inner surface of the inclined wall portion 21 of the plurality of vertical wall portions 15 to 18 of the grain hopper 5 are provided with vertical wall liners. 38 are provided.

In plan view, the vertical wall liner 38 extends over a portion of the inner surface of the vertical wall portion 15 that faces the throwing portion 33 in the left-right direction and a portion of the inner surface of the inclined wall portion 21 that faces the throwing portion 33 in the left-right direction. is provided.

The vertical wall liner 38 extends over the inner surface of the vertical wall portion 16 above the funnel portion 20 on the frontmost side and on the inner surface of the vertical wall portion 16 on the front-rear intermediate portion above the funnel portion 20 in plan view. are provided. The vertical wall liner 38 is provided at the same height as the throwing portion 33 on the inner surface of the vertical wall portion 15 and the inner surface of the inclined wall portion 21 when viewed from the front.
With the above configuration, the vertical wall liner 38 is provided at a position facing the throwing portion 33 on the inner surface of the vertical wall portion 16 and the inner surface of the inclined wall portion 21 facing the throwing portion 33 .

(Specific configuration of the vertical wall liner provided in the vertical wall portion of the grain hopper)
As shown in FIGS. 9, 12 and 13, the vertical wall liner 38 is formed in a flat plate shape from a sufficiently wear-resistant material. The vertical wall liner 38 is formed by being bent so as to have a portion 38a along the inner surface of the inclined wall portion 21 and a portion 38b along the inner surface of the vertical wall portion 15 facing the throwing portion 33. A portion 38a of 38 has an opening 38c for attachment.

A bolt 42 is connected to the inclined wall portion 21 and protrudes inside the inclined wall portion 21, the bolt 42 is inserted into the opening 38c of the vertical wall liner 38, and the bolt 42 is tightened with a nut.

The vertical wall liner 38 is detachably attached only to the inner surface of the inclined wall portion 21 , is not connected to the inner surface of the vertical wall portion 15 , and is attached to the inner surface of the inclined wall portion 21 and the inner surface of the vertical wall portion 15 . placed across. The vertical wall liner 38 can be attached and detached by removing the nut from the bolt 42 and can be replaced with a new vertical wall liner 38 .

As shown in FIG. 4, in the grain hopper 5, the inner surface angle A1 formed by the inner surface of the inclined wall portion 21 and the inner surface of the vertical wall portion 15 facing the throwing portion 33 is focused.
As shown in FIG. 13, in the vertical wall liner 38 before being attached, the vertical wall liner 38 has a portion 38a along the inner surface of the inclined wall portion 21 and a portion 38b along the inner surface of the vertical wall portion 15 facing the throwing portion 33. Note the liner angle A2 formed by

The vertical wall liner 38 is formed such that the liner angle A2 is slightly larger than the inner surface angle A1 before the vertical wall liner 38 is installed.
As shown in FIG. 9, portion 38a of vertical wall liner 38 is attached to the inner surface of sloped wall 21 while vertical wall liner 38 is elastically deformed such that liner angle A2 is the same as internal surface angle A1. The portion 38b of the vertical wall liner 38 is pressed against the inner surface of the vertical wall portion 15 by the elasticity of the vertical wall liner 38 and is in a state of being in close contact.

(Arrangement and specific configuration of the ceiling liner provided on the ceiling of the grain hopper)
A detachable ceiling liner 39 (corresponding to a liner) is attached to a portion of the inner surface of the grain hopper 5 where grains thrown by the throwing section 33 of the conveying device 31 are thrown, as described below. is provided.

As shown in FIGS. 8 and 9, a ceiling liner 39 is provided on the inner surface of the ceiling portion 19 between the throwing portion 33 and the vertical wall liner 38 in plan view. A portion of the inner surface of the ceiling portion 19 where the ceiling liner 39 is provided is a portion facing the throwing portion 33 in plan view. An end portion 39 a of the ceiling liner 39 opposite to the throwing portion 33 extends downward from the inner surface of the ceiling portion 19 .

A ceiling liner 39 is attached to the inner surface of the ceiling section 19 by bolts 43 . The ceiling liner 39 can be attached and detached by removing the bolt 43 and can be replaced with a new ceiling liner 39 .

As shown in FIGS. 9, 10, and 11, reinforcing members 22 and 23 are connected to the upper surface of the ceiling liner 39 in the ceiling 19 (see the above-mentioned (grain hopper configuration)), In plan view, the ceiling liner 39 and the reinforcing members 22, 23 overlap. Thus, the ceiling liner 39 is provided on the inner surface of the ceiling portion 19 at the positions of the reinforcing members 22 and 23 .

(Structure of wear prevention member provided inside the case of the throwing part)
As shown in FIGS. 8 and 14, a wear-resistant member 40 having sufficient wear resistance is attached to the inner surface of the case 37 with bolts 41 . The wear prevention member 40 can be attached and detached by removing the bolt 41 and can be replaced with a new wear prevention member 40 .

The wear prevention member 40 is arcuately formed along the inner surface of the case 37 . The upper portion of the wear prevention member 40 on the downstream side of the blade member 36 in the rotation direction is a guide portion 40 a that guides the grain thrown by the blade member 36 toward the vertical wall liner 38 and the ceiling liner 39 .

The lower part of the wear-preventing member 40 on the downstream side of the blade member 36 in the rotation direction extends in a cantilevered manner, and this extended portion moves the grain thrown by the blade member 36 into the grain hopper 5. A guide portion 40b that guides to a region laterally spaced from the vertical wall liner 38. As shown in FIG.
A vertical width W1 of the guide portion 40a of the wear-resistant member 40 is set slightly larger than a vertical width W2 of the guide portion 40b of the wear-resistant member 40. As shown in FIG.

With the above configuration, as shown in FIG. 8, the grain thrown by the upper part of the blade member 36 is guided by the guide portion 40a of the wear prevention member 40, and is mainly distributed on the vertical wall portion facing the throwing portion 33. 15 and sloping wall sections 21 , vertical wall liners 38 and ceiling liners 39 , mainly in the region of the most forward funnel section 20 .

If there is a grain thrown toward the inclined wall portion 21 along the inner surface of the ceiling liner 39, the grain hits the end portion 39a of the ceiling liner 39 and is guided downward, as shown in FIG. As a result, grains are prevented from entering the gap formed between the portion of the ceiling portion 19 opposite to the throwing portion 33 and the inclined wall portion 21 .

The grain thrown by the lower portion of the blade member 36 is guided by the guide portion 40b of the wear-resistant member 40 and directed mainly toward the rearward region of the grain hopper 5 away from the vertical wall liner 38. Mainly, it is thrown into the funnel portion 20 region of the front and rear middle portion and the funnel portion 20 of the rearmost side.

(Configuration related to bagging work)
As described above, as the grains are thrown into the grain hopper 5, the grains are taken out from the discharge section 26 of the grain hopper 5 and bagged into bags.

As shown in FIGS. 3 and 4 , the support frame 44 is connected along the front-rear direction across the left front and left rear support frames 9 , and a plurality of rod-shaped bag support members 45 are attached to the support frame 44 . They are connected and extend laterally outward on the right in a cantilevered manner.

A workbench 46 on which an operator can ride is supported swingably around an axis P2 along the front-rear direction on the right side of the machine body 1, and the workbench 46 is positioned below the grain hopper 5. , to a use position (see the solid line in FIG. 4) extending laterally outward on the right side, and an upward retracted position (see the broken line in FIG. 4).

As shown in FIGS. 1, 2, 3 and 4, a guard portion 47 is attached to the support frame 9 so as to be positioned above the workbench 46. As shown in FIGS. A canopy 54 is supported on the grain hopper 5 as a shade for the operator of the workbench 46 .

A worker on the workbench 46 attaches a large number of empty bags (not shown) to the bag support member 45 and places them on the back side (the side of the threshing device 4) with respect to the discharge section 26 of the grain hopper 5. Positioned, one bag is moved along the bag support member 45 and the discharge portion 26 of the grain hopper 5 is inserted into the opening of the bag.

In the state described above, the operator opens the shutter 27 and puts the grains in the grain hopper 5 into the bag from the discharge section 26 . When the bag becomes full, the operator closes the shutter 27, closes the opening of the bag, removes the full bag from the bag support member 45, and discharges it to the field. The operator moves the next empty bag along the bag support member 45, inserts the discharge part 26 of the grain hopper 5 into the opening of the bag, and repeats the above operation.

In the bagging work described above, the worker can stabilize his/her own body by putting his waist against the guard 47 or holding the handrail frame 11, and can avoid the sunlight by the canopy 54. .

(Canopy configuration)
As shown in FIGS. 9, 10, and 15, the canopy 54 includes a first frame 55 formed in a channel shape in a plan view, and a first frame 55 connected across front and rear ends of the first frame 55 . two frames 56, two third frames 57 connected over the first frame 55 and the second frame 56, a handle portion 58 connected to the third frame 57, the first, second and third frames 55, It has a canvas 59 or the like attached over 56,57.

As shown in FIGS. 9, 10, 15 and 16, in the grain hopper 5 a front support member 60 and a rear support member 61 are connected to the front and rear portions of the inclined wall portion 21 .
The front and rear support members 60 and 61 are laterally connected to the base portions 60a and 61a bolted to the inclined wall portion 21, the support portions 60b and 61b connected to the base portions 60a and 61a, and the support portions 60b and 61b. boss portions 60c and 61c, and receiving portions 60d and 61d connected across the substrate portions 60a and 61a and the support portions 60b and 61b.

In the canopy 54, the front end and the rear end of the first frame 55 are formed sideways to form a front shaft portion 55a and a rear shaft portion 55b. The front shaft portion 55a and the rear shaft portion 55b of the first frame 55 are inserted into the boss portions 60c and 61c of the front and rear support members 60 and 61, respectively, and the canopy 54 is axially aligned in the front-rear direction. It is supported by front and rear support members 60 and 61 so as to be able to swing around P3.

As a result, the canopy 54 projects laterally outward on the right with respect to the grain hopper 5 and is positioned above the workbench 46 in the state of use B1 (see FIGS. 4, 10, and 15). The state can be changed by swinging over the stored state B2 (see FIG. 9) located on the upper side.
An operator of the workbench 46 can operate the canopy 54 between the use state B1 and the retracted state B2 by holding the handle portion 58 .

As shown in FIG. 9, when the canopy 54 is operated to the retracted state B2, the top portion 57a of the third frame 57 is moved in the grain hopper 5 by the receiving members 25 (described above) of the reinforcing members 23 and 24 of the ceiling portion 19. (see grain hopper configuration)) from above.
This prevents damage to the reinforcing members 23 and 24 and damage to the third frame 57 and the canvas 59 of the canopy 54 .

(Construction that holds the canopy in use)
As shown in FIGS. 9, 10, 15, and 16, in the canopy 54, flat plate-like front and rear contact members 63 are attached to the front shaft portion 55a and the rear shaft portion 55b of the first frame 55, and the support member 60 , 61 so as to face the receiving portions 60d and 61d.

The portions of the front and rear contact members 63 facing the receiving portions 60d and 61d of the support members 60 and 61 are formed as flat portions. A connecting hole 63a is opened in the rear contact member 63 .

Since the receiving portions 60d and 61d of the supporting members 60 and 61 are formed by bending a plate material, the portions of the receiving portions 60d and 61d of the supporting members 60 and 61 facing the contact member 63 are formed as flat portions. ing.

In the receiving portion 61d of the rear support member 61, a connection hole 61e is opened at a position facing the connection hole 63a of the rear contact member 63, and a holding hole 61f is opened below the connection hole 61e. It is

A connecting pin 64 with a head is provided. When the canopy 54 is operated to the retracted state B2, as shown in FIG. is attached, and the connecting pin 64 does not come off from the holding hole 61f of the support member 61 behind.

As shown in FIGS. 9-10, 15 and 16, when the canopy 54 is operated to the use state B1, the planar portions of the front and rear contact members 63 and the receiving portions of the front and rear support members 60 and 61 are closed. The flat portions of 60d and 61d come into surface contact, and the downward swinging of the canopy 54 beyond the state of use B1 is stopped.

When the operator holds the canopy 54 in the state of use B1, the worker removes the retaining pin 66 from the connecting pin 64 shown in FIG. 65 and retaining pin 66 are removed from holding hole 61f of support member 61 later.

Next, as shown in FIGS. 15 and 16, the operator attaches and removes the removed connecting pin 64 across the connecting hole 63a of the rear contact member 63 and the connecting hole 61e of the rear support member 61. A washer 65 and a retaining pin 66 are attached to the connecting pin 64 .
Thereby, the connecting pin 64 is attached across the rear contact member 63 and the receiving portion 61d of the rear supporting member 61, and the canopy 54 is held by the connecting pin 64 in the state of use B1.

When the operator releases the canopy 54 from the state of use B1, the operator removes the connecting pin 64, the washer 65, and the retaining pin 66 from the rear contact member 63 and the rear contact member 63, as shown in FIGS. The connecting pin 64, the washer 65, and the retaining pin 66 that have been removed from the receiving portion 61d of the rear support member 61 are attached to the holding holes 61f of the rear support member 61. As shown in FIG.

(Structure of guard section)
As shown in FIGS. 4, 5, and 6, the guard portion 47 includes a first frame 48 made of round pipe material formed in an angle shape in a plan view, a second frame 49 made of square pipe material, a plurality of cushion members 50, and the like. have.

Three cylindrical cushion members 50 are inserted into and attached to the long portion of the first frame 48 and one cylindrical cushion member 50 is inserted into the rear short portion of the first frame 48 . installed.

As shown in FIG. 7, at the connecting portion between the first frame 48 and the second frame 49, the end of the first frame 48 is inserted into the opening 49a of the second frame 49, and the washer 51 is inserted into the first frame. 48 is attached to the end. A spring pin 52 having a C-shaped cross section is inserted into the through hole 48a at the end of the first frame 48 to prevent the first frame 48 from slipping out of the opening 49a of the second frame 49 .

A spring pin 53 having a diameter smaller than that of the spring pin 52 is inserted into the spring pin 52, and the spring pin 53 tries to spread the spring pin 52 from the inside to the outside. The spring pin 53 is inserted into the spring pin 52 such that the opening of the spring pin 52 and the opening of the spring pin 53 are arranged at opposite positions.

As a result, in addition to the elastic force of the spring pin 52 itself, the force of the spring pin 53 pushes the outer surface of the spring pin 53 against the inner surface of the through-hole 48a of the first frame 48, and the spring pin 53 is pushed out. It is in a state where it is difficult to get out of the through hole 48 a of the first frame 48 .

As shown in FIGS. 4 and 5, the guard portion 47 is supported so as to be vertically swingable about an axis P3 extending in the front-rear direction of the front and rear horizontal frames 10. It is operable through a laterally extended use position (see solid line in FIG. 4) and an upward retracted position (see dashed line in FIG. 4).

The lateral frame 10 is provided with a receiving portion 10a. At the use position, the first frame 48 and the second frame 49 ride on the receiving portion 10a of the horizontal frame 10, so that the guard portion 47 is held at the use position.

As shown in FIGS. 4 and 15, a holding member 62 formed by bending a spring plate material is attached to the receiving portion 60d of the front supporting member 60. As shown in FIGS. By inserting the first frame 48 into the holding member 62 at the retracted position, the guard portion 47 is retained at the retracted position.

(First alternative embodiment of the invention)
Vertical wall liners 38 are provided not only at the positions shown in FIGS. It may also be provided in portions of the vertical wall portions 16, 17, 18 corresponding to the throwing destinations of the grains.

Ceiling liners 39 are provided not only at the positions shown in FIGS. may be

(Second alternative embodiment of the invention)
In a vertical wall liner 38 constructed such that the liner angle A2 (see FIG. 13) is slightly greater than the inner surface angle A1 (see FIG. 4), the portion 38a of the vertical wall liner 38 is bolted to the inner surface of the angled wall portion 21. A portion 38 b of the wall liner 38 may be removably attached to the inner surface of the wall 15 by bolts 42 .

(Third alternative embodiment of the invention)
The vertical wall liner 38 may be formed such that the liner angle A2 and the inner surface angle A1 are the same. In this configuration, portion 38a of vertical wall liner 38 is detachably attached to the inner surface of inclined wall portion 21 by bolts 42, and portion 38b of vertical wall liner 38 is detachably attached to the inner surface of vertical wall portion 15 by bolts 42. should be attached to

(Fourth alternative embodiment of the invention)
Instead of the grain hopper 5, a grain tank (not shown) provided with a grain discharging device such as an unloader may be provided as the grain storage unit.

The present invention can be applied not only to ordinary combine harvesters but also to self-throwing combine harvesters and harvesters such as corn harvesters.

5 Grain hopper (grain storage part)
15 vertical wall portion 16 vertical wall portion 17 vertical wall portion 18 vertical wall portion 19 ceiling portion 21 inclined wall portion 22 reinforcing member 23 reinforcing member 31 conveying device 33 throwing portion
36 blade member 37 case 38 vertical wall liner (liner)
38a portion of vertical wall liner 38b portion of vertical wall liner 39 ceiling liner (liner)
39a end of ceiling liner 40 antiwear member 40a guide portion of antiwear member 40b guide portion of antiwear member A1 inner surface angle A2 liner angle P1 axis center

Claims (6)

a box-shaped grain storage unit for storing grains;
a conveying device for throwing threshed grains and putting them into the grain storage unit,
A detachable liner is provided on a portion of the inner surface of the grain storage unit, which is located at a throwing destination of the grains thrown in by the conveying device ,
The grain throwing portion of the conveying device is provided on one of the plurality of vertical wall portions of the grain storage portion,
A vertical wall liner is provided as the liner at a position facing the throwing portion on the inner surface of the vertical wall portion facing the throwing portion among the plurality of vertical wall portions of the grain storage portion,
An inclined wall portion extending from the ceiling portion toward the upper end portion of the vertical wall portion facing the throwing portion across the ceiling portion of the grain storage portion and the upper end portion of the vertical wall portion facing the throwing portion is provided,
The harvester , wherein the vertical wall liner is detachably attached only to the inner surface of the inclined wall portion, and is arranged over the inner surface of the inclined wall portion and the inner surface of the vertical wall portion facing the throwing portion . a box-shaped grain storage unit for storing grains;
a conveying device for throwing threshed grains and putting them into the grain storage unit,
A detachable liner is provided on a portion of the inner surface of the grain storage unit, which is located at a throwing destination of the grains thrown in by the conveying device,
The grain throwing portion of the conveying device is provided on one of the plurality of vertical wall portions of the grain storage portion,
A vertical wall liner is provided as the liner at a position facing the throwing portion on the inner surface of the vertical wall portion facing the throwing portion among the plurality of vertical wall portions of the grain storage portion,
An inclined wall portion extending from the ceiling portion toward the upper end portion of the vertical wall portion facing the throwing portion across the ceiling portion of the grain storage portion and the upper end portion of the vertical wall portion facing the throwing portion is provided,
an inner surface angle formed by the inner surface of the inclined wall portion and the inner surface of the vertical wall portion facing the throwing portion; At the liner angle formed by the portion along the inner surface of the wall,
The vertical wall liner is elastically deformed in a state where the angle of the liner is larger than the angle of the inner surface, and the inner surface of the inclined wall portion and the inner surface of the vertical wall portion facing the throwing portion move toward each other. Harvesting machine installed across. a box-shaped grain storage unit for storing grains;
a conveying device for throwing threshed grains and putting them into the grain storage unit,
A detachable liner is provided on a portion of the inner surface of the grain storage unit, which is located at a throwing destination of the grains thrown in by the conveying device,
The grain throwing portion of the conveying device is provided on one of the plurality of vertical wall portions of the grain storage portion,
A vertical wall liner is provided as the liner at a position facing the throwing portion on the inner surface of the vertical wall portion facing the throwing portion among the plurality of vertical wall portions of the grain storage portion,
The throwing part is provided with a blade member that is driven to rotate about an axis along the vertical direction and throws the grain, and a case that covers the outside of the blade member,
A wear prevention member for preventing wear of the case is provided on the inner surface of the case,
A harvester , wherein the wear-resistant member is provided with a guide portion for guiding grains thrown by the blade member toward the vertical wall liner. 4. Harvesting according to claim 3 , wherein the wear-resistant member is provided with a guide portion for guiding the grain thrown by the blade member to a region of the grain storage portion laterally away from the vertical wall liner. machine. a box-shaped grain storage unit for storing grains;
a conveying device for throwing threshed grains and putting them into the grain storage unit,
A detachable liner is provided on a portion of the inner surface of the grain storage unit, which is located at a throwing destination of the grains thrown in by the conveying device,
A ceiling liner as the liner is provided on the inner surface of the ceiling of the grain storage unit,
The grain throwing portion of the conveying device is provided on one of the plurality of vertical wall portions of the grain storage portion,
The ceiling part is detachably provided in the grain storage part,
The harvester , wherein the end portion of the ceiling liner opposite to the throwing portion extends downward from the inner surface of the ceiling portion. A reinforcing member is provided on the ceiling,
The harvester according to claim 5 , wherein the ceiling liner is provided on the inner surface of the ceiling portion at the position of the reinforcing member.

Images