JPH05184232A - Threshing equipment for combine harvesters - Google Patents

Abstract

PURPOSE:To strengthen the structure of the subject apparatus by providing a frame reinforcing a stationary frame which rotatably supports the front end of a transfer chain-guiding rail of a culm-clamping and transferring apparatus in a state freely rotatable in horizontal plane. CONSTITUTION:The front end of a transfer chain-guiding rail 25 of a culm- clamping and transferring apparatus 21 is supported in a state freely rotatable in horizontal plane with a stationary frame 30 fixed between a suspension supporting bed 35 and a machine body frame 2. The stationary frame is reinforced with a reinforcing frame 36. The apparatus is easily maintainable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing device for combine harvesters.

[0002]

2. Description of the Related Art A conventionally known Japanese Utility Model Publication No. 1-167839 discloses a traveling device, an automatic grain culm-type threshing device provided at a position above the traveling device, and a machine body provided on an upper front end of the traveling device. A threshing device comprising a harvesting section suspension support fixed to a frame (not shown in the drawing) and a harvesting section supported by the suspension support (this point is also omitted in the drawing). The rear end of the transport chain guide rail of the grain culling and transporting device is described for a combine threshing device in which the rear end of the threshing device is axially rotatably attached to the rear part of the threshing device.

[0003]

In the above-mentioned publicly known example, for the purpose of maintenance, the grain-carrying and conveying device is horizontally rotatable, but the structure is such that the starting end is horizontally rotated centering on the end. Since it is movable, it has a structure in which the starting end is wide open but the end is not open. However, since the end portion is a portion that is taken over from the grain-carrying and carrying device to the straw-carrying and carrying device, the end part must be opened.

[0004]

It is an object of the present invention to attach importance to the terminal end portion rather than the starting end portion so that the terminal end portion can be opened, and also to have a robust structure.

[0005]

The present invention is directed to a traveling device 3
An automatic grain culm type threshing device 1 provided at a position above the traveling device 3, a cutting section suspension support 35 fixed to the machine frame 2 provided at an upper front end of the traveling device 3, and the suspension support In the combine consisting of the mowing unit 4 supported by 35, one end of the front end of the transport chain guide rail 25 of the grain squeezing and transporting device 21 of the threshing device 1 is fixed to the suspension support base 35 and the machine frame 2 The other end is fixed to a fixed frame 30 that is horizontally rotatable so that the fixed frame 30 is a combine threshing device that is connected to the threshing device 1 by a reinforcing frame 36. is there.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Explaining an embodiment of the present invention with reference to the drawings, 1 is a threshing device provided in a combine or the like, which is provided above the machine frame 2 and a traveling device 3 is provided below the machine frame 2. Set up. Reference numeral 4 is a reaper provided on the front side of the threshing device 1. A threshing chamber 5 is formed at a front upper position in the threshing device 1. 6 is a handling cylinder axially mounted in the threshing chamber 5, 7 is a handling net provided mainly on the lower side of the handling barrel 6, 8 is a grain culm supply port formed on the front side (supply side) of the threshing chamber 5,
9 is a grain culm discharge port formed on the rear side (discharging side) of the threshing chamber 5, 10 is a transfer swing rack having a transfer protrusion 11 provided below the handling net 7, and 12 is the threshing chamber 5. Dust outlet, 13
Is a wind-selecting chamber formed from the lower side of the dust outlet 12 toward the rear side, 14 is a swing-selecting frame provided in the wind-selecting chamber 13, 1
5 is the first conveyor, 16 is the second conveyor, 17 is a second returning device for connecting the base to the end of the second conveyor 16 and returning it to the starting end of the transfer rack 10. Numerals 19 are auxiliary air blowers that blow air to the non-operation area of the blower tray 18 at the end of the transfer rack 10 to diffuse the grain removed from the transfer rack 10.

Thus, a grain culm supply / conveyance passage 20 extending from the grain culm supply port 8 to the grain culm discharge port 9 is formed on a side portion of the threshing chamber 5. In the grain culm supply / conveyance passage 20, a grain culm holding / conveying device 21 for supplying grain culm to the threshing chamber 5 is provided. The grain culling / conveying device 21 is configured by a supply / conveyance chain 22 for grasping and conveying the grain culm and a slinging rod 23, and the slinging rod 23 covers the upper part of the threshing chamber 5 at a pivoting end. When the upper cover 24 is moved upward, it is integrally moved. Reference numeral 25 denotes a transport chain guide rail of the supply transport chain 22, and a drive gear 26 is provided at a starting end portion of the transport chain guide rail 25.
The passive gear 2 at the end of the transport chain guide rail 25.
7 are provided, and the supply / conveyance chain 22 is hung between the drive gear 26 and the passive gear 27.

Therefore, the transport chain guide rail 25
Fixes the rear end of the mounting metal fitting 28 to the front side thereof, and fixes the upper part of the vertical cylinder 29 to the front end of the mounting metal fitting 28.
Is rotatably attached to a vertical axis 31 of a fixed frame 30 fixed to the machine body frame 2 side. The fixed frame 30 is formed by a vertical support rod 32 whose lower portion is fixed to the machine frame 2 and a front side horizontal rod 33 by bending an upper portion of the vertical support rod 32, and a front end of the front side horizontal rod 33 is formed at the tip of the cutting section 4. The base portion of the support pipe 34 is fixed to a suspension support base 35 rotatably attached. A front end of a reinforcing frame 36 in the front-rear direction is fixed to an intermediate portion of the front side rod 33, and a rear end of the reinforcing frame 36 is fixed to a front plate 37 of the threshing device 1. The suspension support base 35 is provided above the mission case 38 of the traveling device 3, and the mission case 38 is fixed to the machine frame 2. Further, the suspension support base 35 in FIG. 6 is directly fixed to the machine body frame 2, but any configuration may be adopted.

An upper part of a vertical frame 39 is fixed to a rear part of the transport chain guide rail 25, a rear part of a longitudinal reinforcing frame 40 is fixed to a lower part of the vertical frame 39, and a lower vertical part is attached to a front side of the reinforcing frame 40. The shaft cylinder 41 is fixed, and the lower vertical cylinder 41 is the fixed frame 3
It is rotatably attached to the lower vertical axis 42 located on the same axis as the vertical axis 31 provided at 0. A shaft may be provided on the transport chain guide rail 25 and the reinforcing frame 36, and the shaft may be detachably attached to a boss provided on the fixed frame 30. A moving side plate 43 surrounding the side portion of the threshing chamber 5 and the side portion of the wind selecting chamber 13 is attached to the conveying chain guide rail 25, and the chain cover 44 of the supply conveying chain 22 is attached.
When the transport chain guide rail 25 is rotated to rotate the chain cover 44 and the moving side plate 43,
A side portion of the threshing chamber 5 and a side portion of the wind selection chamber 13 are configured to be open. Further, the moving side plate 43 also has an effect of pressing the handling net 7 when the transport chain guide rail 25 is returned to its original position.

Therefore, the rotating shaft 45 of the drive gear 26
Is connected to the transmission shaft 47 via a connecting member 46 composed of a universal joint or the like, and the carrier chain guide rail 2
When 5 is rotated outward, the portion of the connecting member 46 is bent. The transmission shaft 47 is mounted on a gear box 48. Further, the rotary shaft 49 of the passive gear 27 is detachably attached to one end of a horizontal transmission shaft 51 mounted on the threshing device 1 side via a connecting member 50 (a detachable claw clutch or the like). . A pulley 52 is fixed to the other end of the transmission shaft 51, and a belt 55 is laid between the pulley 52 and a pulley 54 fixed to the transmission shaft 53 near the transmission shaft 51 and parallel to the transmission shaft 51. 7 and 8, a gear 56 is fixed to the transmission shaft 51, and the gear 56 is fixed to the pulley 5
A gear 58 fixed to another shaft 57 to which 2 is fixed is meshed. The other end of the transmission shaft 53 is connected to a gear box 62 provided with a drive gear 61 of a conveyor chain 60 of a straw conveyor 59. Therefore, when the grain-carrying and conveying device 21 is rotated outward, the coupling between the passive gear 27 and the transmission shaft 51 can be easily removed at the connecting member 50.

Therefore, the straw conveying device 59 is attached to the frame 63, and the frame 63 is attached to the upper cover 2.
4 and is configured to rotate up and down together with the upper cover 24. In addition, since the transmission shaft 53 is provided with a plurality of universal joints 72 and is bendable,
It moves smoothly together with the upper cover 24. Then, the tension clutch pulley 64, which is provided so as to be able to come into contact with and separate from the belt 55 between the pulley 52 and the pulley 54, is configured to be turned on and off in association with opening and closing of the upper cover 24. The tension clutch pulley 64 is the rotating arm 6
5 is attached to one end 66, and the intermediate portion of the rotating arm 65 is rotatably attached to the machine body side by a shaft 67. Rotating arm 65
The tip of the engaging body 69 is engaged with the other end 68 of the
9 is attached to the upper cover 24.

Therefore, the handling cylinder 6 of the present embodiment is provided with the horizontal-rotating handling cylinder shaft 73 for the feed side moving front plate 74 of the threshing chamber 5.
And the discharge side moving plate 75 are axially mounted, and the supply side moving front plate 74 has a rear side edge of the supply side fixing plate 76 on the shaft side fitting 7.
7, the discharge side moving plate 75 is detachably attached to the discharge side fixed plate 78 of the threshing device 1, and the handling side supported by the supply side moving front plate 74 and the discharge side moving plate 75. The body 6 is configured to open and rotate outward. In the figure,
Reference numeral 70 is a swing mechanism of the transfer swing rack 10, and 71 is a swing mechanism 7.
The swinging frame body 79 attached to 0 is the above-mentioned handling barrel 6 during threshing work.
Lock device for fixing the vehicle to the fuselage side, 80 is an operating lever, 8
1 is a chain rail lock device provided on the terminal end side of the transport chain guide rail 25, 82 is an engagement hook of the lock device 81, and 83 is an engagement shaft provided on the machine body side where the engagement hook 82 is connected and disconnected. Reference numeral 84 is an operation lever of the engagement hook 82. Further, 85 is a straw processing unit, 86 is a processing barrel, and 87.
Is a cross-flow suction windmill.

[0013]

[Operation] Next, the operation will be described. Since the present invention has the above-mentioned configuration, the grain culm cut by the reaping unit 4 holds the grain culm holding and conveying device 2
1 is supplied from the grain culm supply port 8 into the threshing chamber 5 and is crushed by the handling barrel 6 which rotates until it is discharged from the grain culm discharge port 9, and the grain loss is leaked from the handling net 7 and shaken for transfer. Moving shelf 1
0, and is transferred toward the discharge side by the swinging rack 10 for transfer and enters the wind-selecting chamber 13, and the threshing in the threshing chamber 5 enters the wind-selecting chamber 13 through the dust outlet 12. Enter, blast Kara 1
Sorting air sent from 8 and swinging of the swinging sorting frame body 14 are sorted, the first product enters the first conveyor 15 and is taken out of the machine, and the second product enters the second conveyor 16. The second article that has entered the second conveyor 16 is returned to the starting end side of the transfer swing rack 10 by the second article returning device 17, and the wind selection chamber 13
It is returned to and is wind-selected. Further, the grain culm conveyed by the grain culm holding and conveying device 21 is taken over by the straw conveying device 59, and reaches the straw eliminator 85 on the rear side of the threshing chamber 5 to be treated.

In this case, even if a straw jam occurs in the straw conveying device 59, it can be easily removed by moving the upper cover 24 upward to raise the straw conveying device 59. Further, the tension clutch pulley 64 is provided on the belt 55 between the pulley 52 and the pulley 54 so as to be able to come into contact with and separate from the belt 55, and is configured to be turned on and off in conjunction with opening and closing of the upper cover 24. Is moved up, the tip of the engaging body 69 is lowered to push the other end of the rotating arm 65 downward, and one end 66 of the rotating arm 65 is moved up about a shaft 67 to move the tension clutch pulley 64 into a belt. It is possible to disengage it from 55 and stop only the straw conveying device 59.
Also, the above-mentioned work can be performed while the wind selection chamber 13 is still operating. Further, even if a straw jam occurs in the straw conveying device 59, the belt 55 between the pulley 52 and the pulley 54 only slips and other transmission mechanisms are not damaged.

When the upper cover 24 covering the upper part of the handling cylinder 6 is moved upward, the slider 23 is moved upward, and when the operating lever 84 of the chain rail lock device 81 is operated in this state, the engaging hook is engaged. 82 is disengaged from the engaging shaft 83. Then, when the operation lever 84 or other portion is pulled outward, the transport chain guide rail 25 rotates outward about the vertical axis 31. When the transfer side guide 43 of the threshing device 1 and the chain cover 44 of the supply transfer chain 22 are attached to the transfer chain guide rail 25, the chain cover 44 and the transfer side plate are rotated by rotating the transfer chain guide rail 25. 43 is rotated outward to open the side portion of the threshing chamber 5 and the side portion of the wind selection chamber 13, and the threshing chamber 5 and the wind selection chamber 13 are opened.
Easy maintenance. In this case, the threshing room 5
Maintenance work can be performed by removing the transfer rocking rack 10 provided below the rocking frame 71.

Further, in the supply / conveyance chain 22 of the grain-carrying / conveying device 21, since the conveyance chain guide rail 25 rotates substantially horizontally toward the outside, maintenance of the supply / conveyance chain 22 is facilitated. Thus, the transport chain guide rail 25 is fixed to a suspension support base 35 that rotatably mounts the base portion of the support pipe 34 of the mowing section 4, and the front side rod 33 is fixed.
Then, since it is rotatably attached to the fixed frame 30 composed of the reinforcing frame 36 fixed to the front plate 37 of the threshing device 1, it is firmly supported. Further, since the grain-culling holding and conveying device 21 supports the starting end portion thereof with the fixed frame 30 including the front lateral rod 33 and the reinforcing frame 36, the fixed frame 30 includes the machine body frame 2 and the front plate 37 of the threshing device 1. It also constitutes a part of the strength member for connecting the above, and improves the rigidity of the entire threshing device 1. Therefore,
Even if the fixed frame 30 has a lightweight structure, sufficient supporting strength can be ensured, and the position of the starting end portion of the grain-culling carrier device 21 is always stable, so that the starting end portion of the grain-culling carrier device 21 and the cutting unit 4 are The relative position becomes constant, and the transfer of the grain culms from the reaping unit 4 also becomes good.

[0017]

The present invention provides a traveling device 3, an automatic grain culm type threshing device 1 provided at a position above the traveling device 3, and a cutting unit fixed to a machine body frame 2 provided at an upper front end of the traveling device 3. In a combine comprising a suspension support base 35 and a mowing unit 4 supported by the suspension support base 35, the threshing device 1
The front end of the transport chain guide rail 25 of the grain-culling carrier device 21 is horizontally rotated with respect to a fixed frame 30 having one end fixed to the suspension support 35 and the other end fixed to the machine frame 2. Since it is a combine threshing device in which the fixed frame 30 is freely pivoted and the fixed frame 30 is connected to the threshing device 1 by the reinforcing frame 36, the end portion of the grain-carrying and conveying device 21 can be rotated. Not only is the place between the end of the grain-carrying and conveying device 21 and the starting end of the straw-conveying device 59 open for easy maintenance by opening a place where jams are likely to occur, but also the front end of the conveying chain guide rail 25. Is firmly supported, and the grain culm from the cutting unit 4 can be smoothly taken over by the grain culling carrier device 21.

[Brief description of drawings]

FIG. 1 is an overall side view.

FIG. 2 is a vertical sectional side view.

FIG. 3 is a plan view.

FIG. 4 is a front view.

FIG. 5 is a rear view.

FIG. 6 is a side view.

FIG. 7 is a side view.

FIG. 8 is a rear view.

FIG. 9 is an operation state diagram.

FIG. 10 is a perspective view of a transfer swing rack.

[Explanation of symbols]

1 ... Threshing device, 2 ... Airframe, 3 ... Traveling device, 4 ...
Mowing part, 5 ... Threshing chamber, 6 ... Handling barrel, 7 ... Handling net, 8 ... Grain feeding port, 9 ... Grain discharging port, 10 ... Oscillating rack for transfer, 11 ... Transfer protrusion, 12 ... Dust outlet , 13 ... Wind selection chamber, 14 ... Oscillating selection frame body, 15 ... First conveyor, 16 ... Second conveyor, 17
… Second item returning device, 18… Blasting sardine, 19… Auxiliary blasting sardine, 20… Grain culm feeding and conveying passage, 21… Grain culling and conveying device, 22… Supply conveying chain, 23… Sliding rod, 24… Top cover , 25 ... Conveyance chain guide rail, 26 ... Drive gear, 27 ... Passive gear, 28 ... Mounting bracket, 29 ... Vertical cylinder,
30 ... Fixed frame, 31 ... Vertical axis, 32 ... Vertical support rod, 33 ... Front side rod, 34 ... Support pipe, 35 ... Suspension support stand, 36 ...
Reinforcement frame, 37 ... Front plate, 38 ... Mission case, 39 ...
Vertical frame, 40 ... Reinforcing frame, 41 ... Lower vertical cylinder, 42 ... Lower vertical axis, 43 ... Moving side plate, 44 ... Chain cover, 45 ... Rotating shaft, 46 ... Connecting member, 47 ... Transmission shaft, 48 ... Gear box , 49 ... rotating shaft, 50 ... connecting member, 51 ... transmission shaft, 5
2 ... Pulley, 53 ... Transmission shaft, 54 ... Pulley, 55 ... Belt, 56 ... Gear, 57 ... Separate shaft, 58 ... Gear, 59 ... Straw conveying device, 60 ... Conveying chain, 61 ... Driving gear, 62 ...
Gear box, 63 ... Frame, 64 ... Tension clutch pulley, 65 ... Rotating arm, 66 ... One end, 67 ...
Shaft, 68 ... Other end, 69 ... Engaging body, 70 ... Swing mechanism, 71
... rocking frame pair, 72 ... universal joint, 73 ... handle shaft, 74 ... supply side moving side plate, 75 ... discharge side moving side plate,
76 ... Supply side fixed side plate, 77 ... Shaft fitting, 78 ... Discharge side fixed side plate, 79 ... Lock device, 80 ... Operation lever, 81
... Chain rail lock device, 82 ... Engaging hook, 83 ...
Engagement shaft, 84 ... Operation lever, 85 ... Straw processing unit, 86 ...
Processing cylinder, 87 ... Cross-flow suction wind turbine.

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[Procedure amendment]

[Submission date] February 22, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

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[Figure 1]

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[Name of item to be corrected] Figure 7

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[Procedure amendment 4]

[Document name to be corrected] Drawing

[Correction target item name] Figure 9

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[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 10

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[Figure 10]

Claims (1)

[Claims] 1. A traction unit suspension support fixed to a traveling device (3), an automatic grain culm type threshing device (1) provided at a position above the traveling device (3), and a machine frame (2) provided above the front end of the traveling device (3). In the combine consisting of the table 35 and the mowing unit 4 supported by the suspension support table 35, the front end of the conveyor chain guide rail 25 of the grain-culling holding and conveying device 21 of the threshing device 1 has one end on the suspension support table 35. Is fixed to the fixed frame 30 whose other end is fixed to the machine body frame 2 so as to be horizontally rotatable, and the fixed frame 30 is connected to the threshing device 1 by a reinforcing frame 36. Threshing equipment for combine harvesters.