CN216254002U - Combine harvester - Google Patents

Abstract

The combine harvester of the present invention is expected to be capable of easily performing a variable speed operation of the jack-up device from the steering section. To this end, the combine harvester of the utility model comprises a harvesting processing part (2): the lifting device (10) lifts the vertical grain stalks; a harvesting knife (11) for cutting off the root of the vertical grain stalk; a carrying device (12) for carrying the harvested rice straw backward; and a transmission device (28) capable of changing the drive speed of the lifting device (10), wherein the operation unit (1) is disposed on the lateral side of the carrying device (12), and an operation member (29) for changing the speed of the transmission device (28) is disposed on the front portion of the operation unit (1) at a position laterally adjacent to the carrying device (12).

Description

Combine harvester

Technical Field

The present invention relates to a combine harvester, which comprises a lifting device for lifting vertical grain stalks and a speed change device capable of changing the driving speed of the lifting device, wherein the harvesting processing part at the front part of a machine body.

Background

In the above-described combine harvester, conventionally, the transmission is provided at an upper portion of the raising device, and an operating member for changing the speed of the transmission by a human operation is provided at a position close to the transmission.

However, in the above-described conventional structure, since the operating element is located at a position away from the driver portion, there is a disadvantage that the operation is difficult when the operating element is operated from the driver portion.

SUMMERY OF THE UTILITY MODEL

(problems to be solved by the utility model)

For this reason, it is desirable to be able to easily perform a shift operation of the jack-up device from the driver's seat.

(means for solving the problems)

The combine harvester of the utility model is characterized in that the combine harvester is provided with: a driving section; and a harvesting unit for harvesting the vertical grain stalks and carrying the harvested grain stalks backward, the harvesting unit including: the lifting device lifts the vertical grain stalks; harvesting a cutter, and cutting off the root of the vertical grain stalk; a carrying device for carrying the harvested rice straw to the rear; and a transmission device capable of changing a driving speed of the lifting device, wherein the driving unit is provided in a state of being positioned laterally to the carrying device, and an operating member for changing the speed of the transmission device is provided at a position laterally adjacent to the carrying device in a front portion of the driving unit.

According to the present invention, since the operating element for changing the speed of the transmission is provided at a position laterally adjacent to the front portion of the cab on the side of the transport device, the operator can easily reach the operating element from the cab.

In the present invention, it is preferable that the operating member is a lever capable of being operated to swing in the front-rear direction.

According to this configuration, the operator can change the speed of the transmission by swinging the lever back and forth while holding the lever with a hand, and can easily operate the transmission in a natural posture.

In the present invention, it is preferable that the operating element is disposed between the cab and the conveying device in a plan view and in a state of overlapping with the conveying device in a side view.

According to this configuration, the operation member can be disposed in a state in which the operation member does not affect the conveyance of the grain or straw by effectively utilizing the space between the driving portion and the conveying device, and the operation member is located close to the driving portion, so that the operation is easy.

In the present invention, it is preferable that the harvesting processing unit is movable up and down between a lowered position close to the ground and a raised position away upward from the ground, and the operating member is located at a position lower than an upper surface of the side panel of the steering unit when the harvesting processing unit is at the lowered position.

According to this configuration, during the harvesting operation, the harvesting processing unit is in the lowered position, and the operating element is positioned lower than the upper surface of the side panel. As a result, the operator does not obstruct the view when viewing the working conditions of the lifting device and the carrying section.

In the present invention, it is preferable that the harvesting unit is movable up and down between a lowered position close to the ground and a raised position away upward from the ground, and the operating member is supported by the harvesting unit.

According to this configuration, since the operating element is lifted and lowered together with the transmission, the operation coupling structure between the operating element and the transmission is simpler than a structure in which the operating element is provided on the driver side.

In the present invention, it is preferable that the harvesting unit is movable up and down between a lowered position close to the ground and a raised position away upward from the ground, the combine has a cab covering an upper portion of the cab, a window portion is formed on a side portion of the cab on the side of the conveying device, and the operating element is projected upward from a lower end portion of the window portion when the harvesting unit is in the lowered position.

According to this configuration, the operator can recognize the presence of the operating element through the window portion during the harvesting operation, and when the operating element is operated through the window portion, the operator can easily operate the operating element without causing inconvenience such as touching the lower end portion of the window portion with the hand.

In the present invention, it is preferable that the harvesting unit is movable up and down between a lowered position close to the ground and a raised position away from the ground upward, the combine harvester includes a cover covering the straw conveying path of the conveying device from above, and the operating element protrudes upward from the cover when the harvesting unit is in the lowered position.

According to this configuration, during harvesting, the cover prevents the uncut straw remaining in the farm field adjacent to the machine body from drooping and being caught in the carrying device. Further, since the operating element protrudes upward from the cover, the cover does not become an obstacle when the operating element is operated.

In the present invention, it is preferable that the operating element is supported by a cover frame that supports the cover.

According to this configuration, since the operating element is supported by the cover frame that supports the cover body, the configuration is simpler than a configuration in which a special support structure is provided for the operating element.

In the present invention, it is preferable that the cover frame has a tubular portion through which the shaft member of the operating element is inserted and supported.

According to this structure, the speed change device can be speed-changed with a simple support structure by effectively utilizing the tubular portion of the frame.

In the present invention, it is preferable that the operating element and the transmission are coupled to each other so as to be operable by a wire.

According to this configuration, since the operating element and the transmission are coupled by the wire, the operating element is not limited in arrangement, the wire is easily supported, and the coupling structure is simplified.

In the present invention, it is preferable to have: a transverse drive shaft extending in the left-right direction at an upper portion of the raising device, an upper transverse frame supporting the transverse drive shaft being provided in a state extending in the left-right direction, the combine harvester having a front-rear direction frame passing through a lateral side of the cab and extending in the front-rear direction and being coupled to a left-right direction intermediate portion of the upper transverse frame, the transmission device being supported at the upper transverse frame, and the wire being laid in a state extending in the front-rear direction along the front-rear direction frame.

According to this structure, the plurality of raising devices are provided in the state of being arranged in the left-right direction, and power can be transmitted to the plurality of raising devices by the lateral driving shaft. The plurality of lifting devices can be stably supported by the upper transverse frame provided for supporting the transverse drive shaft and the forward-backward facing frame supporting the upper transverse frame. Further, the wire can be extended from the vicinity of the raising device to the operation member by effectively utilizing the front-rear direction frame.

In the present invention, it is preferable that the transmission is supported by an end portion of the upper lateral frame on the side opposite to the driver's seat, and the wire is laid in a state of extending in the left-right direction along the upper lateral frame.

According to this configuration, the upper horizontal frame can be effectively used to extend the line in the left-right direction to the transmission.

Drawings

Fig. 1 is a side view of a combine harvester.

Fig. 2 is a top view of the combine.

Fig. 3 is a sectional view of the lever support portion.

Description of the reference numerals

1: driving part

2: harvesting processing part

8: side panel

10: lifting device

11: harvesting knife

12: conveying device

13: upper cover body

22: upper horizontal frame

25: front-back oriented frame

27: cover frame

27A: tubular section

28: speed changing device

29: operating rod (operating parts)

30: a fulcrum shaft (shaft member).

Detailed Description

Next, a case where the embodiment of the combine harvester of the present invention is applied to a half-feed type combine harvester will be described with reference to the drawings. In the following description, the direction of arrow "F" is the front side of the body, the direction of arrow "B" is the rear side of the body, the direction of arrow "R" is the right side, and the direction of arrow "L" is the left side.

As shown in fig. 1 and 2, the combine harvester has: a driver section 1; a harvesting processing part 2 for harvesting the vertical grain stalks; a threshing part 3 for threshing the grain stalks; a grain box 4 for storing grains; and a grain discharging device 5 for discharging the grains stored in the grain box 4 to the outside. Threshing portion 3 and grain case 4 set up with transverse arrangement's state, and threshing portion 3 is located the left side, and grain case 4 is located the right side.

The driver unit 1 includes: a driver seat 6; a front panel 7 located in front of the driver seat 6; and a side panel 8 located on the left lateral side of the driver seat 6. The front panel 7 and the side panel 8 have various steering operation members. An engine 9 is provided below the driver seat 6.

The harvesting unit 2 includes: a plurality of lifting devices 10 for lifting the vertical grain stalks; a harvesting knife 11 for cutting off the root of the vertical grain stalk; and a straw conveying part 12 as a conveying part for conveying the harvested straws to the rear. A plurality of the raising devices 10 are arranged in a state of being arranged in the left-right direction. An upper cover 13 is provided to cover the grain and straw conveying path of the grain and straw conveying unit 12 from above in a state of extending rearward from the rear part of the upper part of the raising device 10.

The cab 14 covers the upper part of the cab 1. A window 15 is formed in a side portion on the left side of the cab 14, which is on the straw conveying portion 12 side. The window portion 15 has front and rear 2-piece glass doors 17 that slide back and forth while being surrounded by a window frame 16 provided in the cab 14.

A harvesting frame 18 that supports the entire harvesting unit 2 is swingably supported by a pivot support 19 located on the lateral side of the cab 1 and extends forward and downward. The pivot support portion 19 is supported by the body frame 20 via a support base not shown. A hydraulic cylinder 21 is provided so as to extend across the middle of the harvesting frame 18 and the machine body frame 20. The harvesting unit 2 is lifted and lowered by the telescopic operation cylinder 21 so as to swing about the horizontal axis X of the pivot support 19.

The harvesting unit 2 can be raised and lowered between a lowered position (see fig. 1) close to the ground and a raised position (not shown) spaced upward from the ground. When harvesting work is performed, the harvesting unit 2 is set at the lowered position to perform the work. When the vehicle is running in a turning manner at the ridge or on the road, the harvesting unit 2 is set at the height of the raised position.

An upper cross frame 22 supporting the upper portions of the plurality of the lifting devices 10 is provided in a state of extending in the left-right direction. A left and right vertical frames 23 are connected to the front portion of the harvesting frame 18 via a lower lateral frame, not shown, and the upper lateral frame 22 is supported by the vertical frames 23. There is also a transverse drive shaft 24 that extends in the left-right direction across the upper portions of the plurality of lifting devices 10. The upper horizontal frame 22 is formed in a circular tube shape, and a horizontal drive shaft 24 is rotatably supported inside the upper horizontal frame 22.

The front-rear direction frame 25 extends forward from the pivot support portion 19 on the machine side while passing over the straw conveying portion 12 and passing laterally on the left side of the cab 1. The front end portion of the front-rear direction frame 25 is connected to the left-right direction intermediate portion of the upper lateral frame 22.

The conveying section supporting frame 26 is cantilevered rearward and upward from a vertically intermediate portion of the left vertical frame 23. Further, a cover frame 27 is provided which extends in the left-right direction from the rear part of the conveying section support frame 26 to the front-rear direction intermediate part of the front-rear direction frame 25 and passes over the straw conveying section 12. The cover frame 27 supports the rear end portion of the upper cover 13.

The power of the engine 9 is transmitted to the transverse drive shaft 24 via a transmission mechanism, not shown, provided inside the harvesting frame 18 and the left-hand vertical frame 23. The lifting device is further provided with a transmission device 28, and the transmission device 28 is located in the middle of transmission of power from the transmission mechanism in the vertical frame 23 to the horizontal drive shaft 24, and can switch the drive speed of the lifting device 10 to a plurality of levels. The transmission 28 is supported at the left end portion of the upper lateral frame 22 on the side opposite to the cab 1.

An operating lever 29 as an operating member for switching the transmission 28 is provided at a position laterally adjacent to the straw conveying section 12 side in the front portion of the cab 1. The operating lever 29 is positioned between the cab 1 and the straw conveying section 12 in a plan view and is provided in a state of overlapping the straw conveying section 12 in a side view.

When the harvesting unit 2 is at the lowered position, the operating lever 29 is disposed at a position lower than the upper surface of the side panel 8 of the cab 1. Further, control lever 29 projects upward from a lower end portion of window portion 15 provided on the left side of cab 14 and projects upward from upper cover 13.

The operating lever 29 is supported by the harvesting unit 2. Specifically, the operation lever 29 is supported by a cover frame 27 that is a frame supporting the upper cover 13. As shown in fig. 3, the cover frame 27 is formed of a circular tube. The right side end portion of the cover frame 27 forms a tubular portion 27A of a circular tube material opening to the right.

A laterally-oriented fulcrum shaft 30 to which an operating lever 29 is fixedly inserted is inserted into and coupled to a right end of the open cover frame 27. The swing base end portion of the operating lever 29 is supported by a fulcrum shaft 30 as a shaft member so as to be swingable in the front-rear direction about an axial center P. The operation lever 29 has a grip operation portion 29a extending upward from the base end portion of the swing and a connecting arm portion extending downward from the base end portion of the swing.

The operating lever 29 and the transmission 28 are operatively coupled to each other by a wire 31. One end of the wire 31 is connected to the connecting arm of the operating lever 29. The wire 31 extends in the front-rear direction from the connecting portion of the operating lever 29 toward the frame 25 along the front-rear direction.

The transmission 28 is supported at the left end portion of the upper lateral frame 22 on the side opposite to the cab 1. Line 31 extends from front to rear in the left-right direction along upper horizontal frame 22 toward the vicinity of the connection portion between frame 25 and upper horizontal frame 22.

(other embodiments)

Other embodiments are listed below.

(1) Instead of the operation lever 29, various configurations such as a dial operation type and a mode of selecting any of a plurality of switches can be adopted as the operation member.

(2) The operating element (operating lever 29) may be provided on the upper portion of the straw conveying section 12, on the lateral side of the cab 14, or the like.

(3) The operating member (operating lever 29) may be projected to a higher position than the upper surface of the side panel 8 or may be located at a lower position than the lower end portion of the window portion 15. Further, it may be positioned below upper cover 13. In short, the operating element may be provided at a position laterally adjacent to the front portion of the cab 1 on the side of the conveying apparatus, and the height of the operating element can be changed.

(4) The operating element (operating lever 29) may be supported by a shaft fixed to the outer periphery of the cover frame 27, or may be supported by the front-rear direction frame 25 instead of the cover frame 27.

(5) The wire 31 may be supported by a dedicated support frame other than the upper horizontal frame 22 and the front-rear direction frame 25.

(6) The operating element (operating lever 29) and the transmission 28 may be connected to each other by a link mechanism including a swing arm, a push-pull ring, and the like.

(availability in industry)

The utility model can be applied to semi-feeding type combine harvesters.

Claims (12)

1. A combine harvester is characterized in that,

comprising: a driving section; and a harvesting part for harvesting the vertical grain stalks and carrying the harvested grain stalks backward,

the harvesting processing part comprises: the lifting device lifts the vertical grain stalks; harvesting a cutter, and cutting off the root of the vertical grain stalk; a carrying device for carrying the harvested rice straw to the rear; and a transmission device capable of changing the driving speed of the lifting device,

the driving section is provided so as to be positioned laterally of the carrying device,

an operating member for changing the speed of the transmission is provided at a position laterally adjacent to the front portion of the cab on the side of the carrying device.

2. A combine harvester according to claim 1,

the operation member is a lever capable of swinging operation in the front-rear direction.

3. A combine harvester according to claim 1,

the operating member is provided so as to be positioned between the cab and the conveying device in a plan view and so as to overlap the conveying device in a side view.

4. A combine harvester according to claim 1,

the harvesting processing part can be lifted between a descending position close to the ground and an ascending position far away from the ground upwards,

when the harvesting processing part is at the descending position, the operating part is positioned at a position lower than the upper surface of the side panel of the steering part.

5. A combine harvester according to claim 1,

the harvesting processing part can be lifted between a descending position close to the ground and an ascending position far away from the ground upwards,

the operating member is supported by the harvesting processing unit.

6. A combine harvester according to claim 1,

the harvesting processing part can be lifted between a descending position close to the ground and an ascending position far away from the ground upwards,

the combine harvester is provided with a cab covering the upper part of the cab,

a window portion is formed in a side portion of the cab on the side of the conveying device,

when the harvesting processing portion is in the lowered position, the operating member protrudes upward compared to a lower end portion of the window portion.

7. A combine harvester according to claim 1,

the harvesting processing part can be lifted between a descending position close to the ground and an ascending position far away from the ground upwards,

the combine harvester is provided with a cover body which covers the grain and straw conveying path of the conveying device from the upper part,

when the harvesting processing part is at the descending position, the operating part is protruded upward compared with the cover body.

8. A combine harvester according to claim 7,

the operating element is supported by a cover frame that supports the cover.

9. A combine harvester according to claim 8,

the housing frame has a tubular portion that,

the shaft member of the operating member is inserted through and supported by the tubular portion.

10. A combine harvester according to any one of claims 1-9,

the operating member and the transmission are coupled to each other so as to be operable by a wire.

11. A combine harvester according to claim 10,

comprising: a transverse drive shaft extending in a left-right direction at an upper portion of the lifting device,

an upper horizontal frame supporting the horizontal driving shaft is arranged in a state of extending along the left-right direction,

the combine harvester is provided with a front-back orientation frame which passes through the transverse side of the driving part and extends along the front-back direction and is connected with the left-right direction middle part of the upper transverse frame,

the transmission is supported on the upper cross frame,

the wire is laid in a state of extending in the front-rear direction along the front-rear direction frame.

12. A combine harvester according to claim 11,

the transmission is supported at an end portion of the upper cross frame on the side opposite to the driver's seat,

the wires are laid in a state of extending in the left-right direction along the upper horizontal frame.

Images