CN217428712U - Combine harvester - Google Patents

Abstract

The utility model relates to a combine harvester, this combine harvester has: a harvesting section (3 a); a threshing device (4) for threshing the harvested rice stalks; a waste grass chopper (5) for chopping the threshed waste grass; a grain box (9) for storing grains; a grain discharging device (10) which is provided with a longitudinal conveying part (11) positioned at the rear of the grain box (9) in a longitudinal posture and discharges grains from the grain box (9); and a rotation motor (18) for rotating the grain discharge device (10) by rotating the vertical conveying part (11). The rotary motor (18) is provided in a space between the vertical conveying section (11) and the waste grass chopper (5). The waste grass chopper 5 has a roof member 21 covering the rotary motor 18 from above.

Description

Combine harvester

Technical Field

The utility model relates to a combine field.

Background

A combine harvester comprises: a harvesting part which is arranged at the front part of the traveling machine body and harvests the grain stalks of the farmland; a threshing device arranged at the rear part of the traveling machine body and used for threshing the grain stalks harvested by the harvesting part; a waste grass chopping device which is connected with the rear part of the threshing device and is used for chopping the threshed waste grass discharged from the threshing device; and a grain box arranged at the transverse side of the threshing device for storing grains obtained from the threshing device.

The combine harvester is provided with: a grain discharging device having a longitudinal conveying part located at the rear of the grain box in a longitudinal posture along the vertical direction of the machine body, and discharging grains from the grain box; and a rotation motor for rotating the grain discharging device by rotating the vertical conveying part. However, since the rotary motor is provided at a position on the outer peripheral portion of the traveling machine body such as a portion located on the rear side of the machine body with respect to the vertical conveying portion, dust such as soil flying around the traveling machine body is likely to adhere to the rotary motor during operation. In addition, when the traveling machine body is cleaned, the cleaning water is easily splashed on the rotary motor.

SUMMERY OF THE UTILITY MODEL

(problem to be solved by the utility model)

The utility model provides a combine harvester, difficult dust or the washing water that makes is attached to on the rotating motor, and can realize dustproof and waterproof structure simply.

(means for solving the problems)

The utility model discloses a combine has: a harvesting part which is arranged at the front part of the traveling machine body and harvests the grain stalks of the farmland; a threshing device arranged at the rear part of the traveling machine body and used for threshing the grain stalks harvested by the harvesting part; a waste grass chopper connected to the rear part of the threshing device for chopping the threshed waste grass discharged from the threshing device; a grain box disposed at a lateral side of the threshing device and storing grains obtained from the threshing device; a grain discharging device having a longitudinal conveying part located behind the grain box in a longitudinal posture along the vertical direction of the machine body, and discharging grains from the grain box; and a rotary motor for rotating the grain discharge device by rotating the vertical conveying part, wherein the rotary motor is arranged in a space between the vertical conveying part and the waste grass chopping device, and the waste grass chopping device is provided with a roof-shaped component positioned above the rotary motor.

According to this configuration, since the rotary motor is covered from the lateral side by the vertical conveying section and the waste grass chopper and is covered from above by the roof-like member, dust and washing water are less likely to adhere to the rotary motor. Since the vertical conveying section and the waste grass cutting device are members covering the rotary motor, and the rotary motor is positioned between the vertical conveying section and the waste grass cutting device, the roof-shaped member can be realized in a small size, and therefore, the dust-proof and water-proof structure of the rotary motor can be realized easily.

In the present invention, preferably, the roof-shaped member is a reinforcing frame provided in a side wall portion of the grain box side in both side wall portions of the waste grass chopper.

According to this configuration, the reinforcing frame is used as the roof-shaped member, and therefore, a special roof-shaped member does not need to be provided, and the dust-proof and water-proof structure of the rotary motor can be easily realized.

The utility model discloses in, as preferred, waste grass comminution device around for waste grass comminution device is located the rotation axis that extends along organism upper and lower direction at the position of indulging the transport portion side rotates, can connect in threshing device's rear portion carries out the shutdown state of the shredding of threshing waste grass and for threshing device swings between the maintenance of keeping away from to the rear with opening the state, strengthening frame has axle branch portion.

According to this configuration, the shaft portion is firmly supported by the reinforcing frame having a large strength for reinforcing the waste grass chopper, and therefore, when the waste grass chopper is swung, the rotation shaft center is not inclined, and the waste grass chopper can be smoothly swung between the open state and the closed state with a small operation force. Not only can the reinforcing frame be used as a roof-shaped component to simply realize the dustproof and waterproof structure of the rotary motor, but also the waste grass chopping device can be easily changed between the opening state and the closing state.

In the present invention, it is preferable that the reinforcing frame is disposed in an inclined posture in which the one end side in the front-rear direction of the machine body is located below.

According to this configuration, even if dust or the like adheres to the reinforcing frame, the dust or the like can easily slip off the reinforcing frame in the inclined posture of the reinforcing frame, and therefore the dust is less likely to accumulate on the reinforcing frame.

In the present invention, it is preferable that the reinforcing frame is disposed in an inclined posture inclined downward rearward.

According to this configuration, since dust and the like accumulated on the reinforcing frame easily slide toward the rear of the machine body, the dust is less likely to fall into the machine body.

In the present invention, preferably, the reinforcing frame has a bent portion.

According to this configuration, since the strength of the reinforcing frame is improved by the bent portion, the shaft support portion can be more firmly supported by the reinforcing frame, and the waste grass chopper can be more smoothly swung.

In the present invention, preferably, the rear end portion of the reinforcing frame has a bent portion bent into a groove shape when viewed from the side of the body.

According to this configuration, since the strength of the reinforcing frame is improved by the bent portion, the shaft support portion can be more firmly supported by the reinforcing frame, and the waste grass chopper can be more smoothly swung.

Drawings

Fig. 1 is a plan view showing the whole of the combine harvester.

FIG. 2 is a rear view showing a rotation operation structure of the grain discharging device and a supporting structure of the waste grass chopper.

FIG. 3 is a right side view showing a rotation operation structure of the grain discharging device and a supporting structure of the waste grass chopper.

Fig. 4 is a sectional view taken along line IV-IV of fig. 2.

Description of the reference numerals

1: traveling machine body

3 a: harvesting part

4: threshing device

5: waste grass chopping device

5 c: side wall part

9: grain box

10: grain discharging device

11: longitudinal conveying part

18: rotary motor

21: roof shaped component (reinforcing frame)

21 a: a bent part

28: a shaft support portion.

Detailed Description

An embodiment as an example of the present invention will be described below with reference to the drawings.

In the following description, regarding the traveling machine body of the combine harvester, the direction of arrow F shown in fig. 1 is "machine body front", the direction of arrow B is "machine body rear", the direction of arrow L is "machine body left", the direction of arrow R is "machine body right", the direction of the front side of the drawing is "machine body upper", and the direction of the back side of the drawing is "machine body lower".

As shown in fig. 1, the combine harvester includes a traveling machine body 1 that can travel by a crawler travel device (not shown) as an example of a traveling device. A driving part 2 and a pre-harvesting part 3 are provided at the front part of the traveling machine body 1. The cab 2 has a cab 2a covering the boarding space. The reaping pretreatment part 3 is provided with: a harvesting part 3a provided in front of the harvesting pre-treatment part 3 for harvesting rice straw (rice, wheat) standing upright in a farmland; and a supply and transport unit 3b connected to the rear part of the harvesting unit 3a, for transporting the harvested straw harvested by the harvesting unit 3a to the rear of the machine body in the lateral direction of the steering unit 2. The harvesting portion 3a is configured to harvest 5 stalks of the transplanting rows. A threshing device 4 for threshing the harvested straws harvested by the harvesting part 3a is provided at the rear part of the traveling machine body 1. The threshing device 4 includes: a threshing unit (not shown) that receives the roots of the harvested straws transported by the supply/transport unit 3b via a threshing chain 4a and transports the harvested straws to the rear of the machine body, and that performs threshing processing on the tops of the ears of the harvested straws to discharge threshed waste grass to the rear of the threshing device 4; and a sorting unit (not shown) for separating the grains obtained by the threshing unit from the dust. The rear part of the threshing device 4 is connected with a waste grass chopping device 5. An upper cover 6 covering the waste grass chopper 5 from above is supported by the thresher 4. As shown in fig. 2, the waste grass chopper 5 includes: a shredding unit 5a for shredding the threshed waste grass discharged from the threshing device 4 in the grain direction by the rotary cutter body 7 and the rotary feeder body 8; and a discharge guide 5b extending downward from a lower portion of the shredding unit 5a and discharging and guiding the cut grass from the shredding unit 5a so as to fall down to a farmland. A grain box 9 is arranged at the lateral side of the threshing device 4. The grain tank 9 stores grains obtained from the threshing device 4. A grain discharging device 10 for discharging the grains stored in the grain tank 9 is connected to the rear of the grain tank 9.

As shown in fig. 1 and 2, the grain discharging device 10 includes: a vertical conveying part 11 which is positioned behind the grain box 9 in a vertical posture along the vertical direction of the machine body; and a horizontal conveying unit 12 connected to an upper portion of the vertical conveying unit 11. The lower portion of the vertical conveying unit 11 is connected to the lower rear portion of the grain tank 9 via a connection box 13 (see fig. 2 and 3). The grains in the grain tank 9 are fed into the vertical conveying part 11 through the connecting tank 13. The vertical conveying unit 11 and the horizontal conveying unit 12 are connected via the relay conveying unit 14. The grains from the vertical conveying part 11 are conveyed to the horizontal conveying part 12 by the relay conveying part 14. The vertical conveying unit 11, the intermediate conveying unit 14, and the horizontal conveying unit 12 are each constituted by a screw conveyor.

As shown in fig. 2, the conveying drum 11a of the vertical conveying unit 11 is rotatably supported by the connecting box 13 and a support portion 15a provided on the column 15. As shown in fig. 2 and 3, the support column 15 is erected on the body frame 16 at a position rearward of the longitudinal conveying section 11. The grain discharging device 10 is supported by the traveling machine body 1 so as to be rotatable about the spiral axis X of the vertical conveying unit 11. As shown in fig. 2, the rotary motor 18 supported by the column 15 via the gear box 17 is linked to the conveying cylinder 11a of the vertical conveying unit 11. As shown in fig. 2 and 4, the interlocking connection between the rotary motor 18 and the transport drum 11a is realized by an output gear 18a provided on the rotary motor 18 and a rotary gear 19 provided on the transport drum 11a in a state of meshing with the output gear 18 a. The output gear 18a and the rotary gear 19 are housed in the gear case 17.

The grain discharge device 10 is rotated about the spiral axis X of the vertical conveying unit 11 by rotating the conveying cylinder 11a of the vertical conveying unit 11 by the rotation motor 18.

As shown in fig. 1, the horizontal conveyance unit 12 is supported by the relay conveyance unit 14 so as to be vertically swingable. The horizontal conveying unit 12 is subjected to a lifting operation with the spiral axis of the relay conveying unit 14 as a swing fulcrum by a telescopic operation of a lifting cylinder 20a of a lifting operation mechanism 20 provided so as to straddle the horizontal conveying unit 12 and the relay conveying unit 14.

As shown in fig. 2, 3 and 4, the rotary motor 18 is provided in a space between the vertical conveying unit 11 of the grain discharge device 10 and the waste grass chopper 5, and is supported by the column 15 via a gear box 17. A roof-like member 21 positioned above the rotary motor 18 is provided in the waste grass cutting apparatus 5. The rotary motor 18 is covered from the lateral side by the vertical conveying part 11 and the waste grass chopper 5, and is covered from the upper side by the roof-like member 21, so that dust and washing water are not easily attached to the rotary motor 18.

As shown in fig. 2, 3 and 4, the roof-like member 21 is constituted by a reinforcing frame provided to the waste grass chopper 5. The reinforcing frame (hereinafter referred to as the reinforcing frame 21) is provided on the side wall portion 5c on the grain tank side of both side wall portions of the shredding processing portion 5a of the waste grass shredder 5.

As shown in fig. 3, the reinforcing frame 21 is disposed in an inclined posture such that it is located downward toward one end side in the front-rear direction of the machine body. Dust and the like adhering to the reinforcing frame 21 can easily slip off the reinforcing frame 21 by the inclined posture of the reinforcing frame 21. In the present embodiment, the reinforcing frame 21 is provided in an inclined posture inclined rearward and downward. Dust and the like slipping off the reinforcing frame 21 easily fall to the rear of the travel machine body 1.

As shown in fig. 3, the reinforcing frame 21 has a bent portion 21 a. The strength of the reinforcing frame 21 is improved by the bent portion 21 a. In the present embodiment, the bent portion 21a is provided at the rear end portion of the reinforcing frame 21 in a state of being bent in a groove shape when viewed from the side of the body. The bent portion 21a is formed in a groove shape opened upward.

As shown in fig. 2, a shaft support 28 capable of swinging the waste grass chopper 5 is provided at a position located on the side of the vertical conveyance unit with respect to the waste grass chopper 5. As shown in fig. 2, 3, and 4, the pivot support portion 28 is provided in the reinforcing frame 21 and the connecting arm 24 provided in the side wall portion 5c on the upper side of the reinforcing frame 21. The shaft support portion 28 has a rotation axis P along the vertical direction of the machine body.

Specifically, the reinforcing frame 21 and a distal end portion 22a of a first support arm 22 provided to the strut 15 are coupled via a first shaft support shaft 23. The first support arm 22 and the first shaft support shaft 23 are connected by welding, and the reinforcing frame 21 is rotatably fitted to the outer peripheral portion of the first shaft support shaft 23. The connecting arm 24 and a second support arm 25 provided to the stay 15 are connected by a second shaft support shaft 26. The second support arm 25 and the second shaft support shaft 26 are connected by welding, and the connecting arm 24 is rotatably fitted to an outer peripheral portion of the second shaft support shaft 26. The first shaft support shaft 23 and the second shaft support shaft 26 are provided to have a rotation axis P.

The waste grass chopper 5 is supported by a stay 15 so as to be swingable between a closed state in which it is connected to the rear of the thresher 4 as shown by a broken line in fig. 1 and performs a chopping process on threshed waste grass, and an open state for maintenance in which it is spaced rearward from the thresher 4 as shown by a dashed-dotted line in fig. 1. When the state of the waste grass chopper 5 is changed, the shaft support portion can be stably supported by the reinforcing frame 21, and the waste grass chopper 5 can be smoothly swung without tilting the rotation axis P.

(other embodiments)

(1) In the above embodiment, the roof member 21 is only partially overlapped with the rotation motor 18 in a plan view, but the present invention is not limited thereto, and the roof member 21 may be overlapped with the entire rotation motor 18.

(2) In the above embodiment, the roof member 21 is shown as an example of the reinforcing frame, but may be a dedicated member instead of the reinforcing frame.

(3) In the above embodiment, the harvesting portion 3a is configured to be able to harvest 5 grain stalks inserted in the rows. A harvesting part capable of harvesting less than 4 or more than 6 rice straws inserted in the rows can also be adopted.

(4) In the above embodiment, the reinforcing frame 21 is provided in an inclined posture, but may be provided in a horizontal posture. The tilt posture of the reinforcing frame is not limited to the tilt downward rearward, and a tilt posture of tilting downward forward may be adopted.

(5) In the above embodiment, the example having the bent portion 21a is shown, but the bent portion 21a may not be provided. The bent portion 21a is not limited to a groove shape that opens upward, and may be a groove shape that opens downward.

(6) In the above embodiment, the waste grass chopper 5 is supported so as to be capable of being opened and closed by swinging, and may be opened and closed by attachment and detachment without swinging.

(availability in industry)

The utility model discloses can be used for a combine, this combine has: a harvesting part; a threshing device for threshing the harvested rice straw; the waste grass chopping device is used for chopping the threshed waste grass; a grain box for storing grains; a grain discharging device having a longitudinal conveying part located at the rear of the grain box in a longitudinal posture along the vertical direction of the machine body, and discharging grains from the grain box; and a rotation motor for rotating the vertical conveying part to rotate the grain discharging device.

Claims (9)

1. A combine harvester is characterized in that,

comprising: a harvesting part which is arranged at the front part of the traveling machine body and harvests the grain stalks of the farmland;

a threshing device arranged at the rear part of the traveling machine body and used for threshing the grain stalks harvested by the harvesting part;

a waste grass chopping device which is connected with the rear part of the threshing device and is used for chopping the threshing waste grass discharged from the threshing device;

a grain box disposed at a lateral side of the threshing device and storing grains obtained from the threshing device;

a grain discharging device having a longitudinal conveying part located behind the grain box in a longitudinal posture along the vertical direction of the machine body, and discharging grains from the grain box; and

a rotary motor for rotating the grain discharging device by rotating the longitudinal conveying part,

the rotary motor is arranged in a space between the longitudinal conveying part and the waste grass chopping device,

the waste grass chopping device has a roof-like member located above the rotary motor.

2. A combine harvester according to claim 1,

the roof-shaped member is a reinforcing frame provided on a side wall portion of the grain tank side of both side wall portions of the waste grass chopper.

3. A combine harvester according to claim 2,

the waste grass chopper is rotatable around a rotation axis extending in the vertical direction of the machine body relative to a part of the waste grass chopper on the side of the longitudinal conveying part, and can swing between a closed state of being connected to the rear part of the threshing device for chopping waste grass and a maintenance open state of being far away from the threshing device in the backward direction,

the reinforcing frame has a journal portion.

4. A combine harvester according to claim 2,

the reinforcing frame is disposed in an inclined posture such that the reinforcing frame is located downward toward one end side in the front-rear direction of the machine body.

5. A combine harvester according to claim 3,

the reinforcing frame is disposed in an inclined posture such that the reinforcing frame is located downward toward one end side in the front-rear direction of the machine body.

6. A combine harvester according to claim 4,

the reinforcing frame is disposed in an inclined posture inclined rearward and downward.

7. A combine harvester according to claim 5,

the reinforcing frame is disposed in an inclined posture inclined rearward and downward.

8. A combine harvester according to any one of claims 2-7,

the reinforcing frame has a bent portion.

9. A combine harvester according to any one of claims 2-7,

the rear end of the reinforcing frame has a bent portion bent into a groove shape when viewed from the side of the body.

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