JP3206072B2 - Threshing equipment for combine harvesters - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, Japanese Unexamined Utility Model Publication No. 1-16739 discloses a traveling device, an automatic grain feeding type threshing device provided at a position above the traveling device, and an airframe provided at an upper front end of the traveling device. The threshing device in a combine comprising a mowing portion suspension support fixed to a frame (not shown in the drawing) and a mowing portion supported by the hanging support (this point is also omitted in the drawing). Describes a combine threshing device in which the rear end of a transport chain guide rail of a grain culm holding and transporting device is fixed to a rear portion of the threshing device so as to be horizontally rotatable.

[0003]

In the above-mentioned known example, the grain stalk clamping and conveying device is made rotatable horizontally for the purpose of maintenance, but the structure is such that the starting end is horizontally rotated about the end. Since it is configured to be movable, the starting end is widely opened but the end is not opened. However, since the end portion is a portion which is taken over from the grain stalk holding and conveying device to the straw holding and conveying device, the end portion must be opened.

[0004]

SUMMARY OF THE INVENTION In the present invention, the end portion is regarded as more important than the start end portion, and the end portion is opened.

[0005]

SUMMARY OF THE INVENTION The present invention provides a traveling device
An automatic grain feeding type threshing device 1 provided at a position above the traveling device 3, a mowing unit suspension support 35 fixed to a body 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, the front end of the transport chain guide rail 25 of the grain culm holding and transporting device 21 of the threshing device 1 has one end fixed to the suspension support 35 and the machine body frame 2 A threshing device for a combine, in which the fixed frame 30 is fixed to the fixed frame 30 to which the other end is fixed so as to be horizontally rotatable, and the fixed frame 30 and the threshing device 1 are connected by a reinforcing frame 36. It is.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a threshing device provided in a combine or the like, which is provided above a body frame 2 and a traveling device 3 is provided below the body frame 2. Provide. Reference numeral 4 denotes a cutting section provided on the front side of the threshing device 1. A threshing room 5 is formed at a front upper position in the threshing apparatus 1. 6 is a handling cylinder mounted in the threshing chamber 5, 7 is a handling net provided mainly below the handling cylinder 6, 8 is a grain culm supply port formed on the front side (supply side) of the threshing chamber 5,
Numeral 9 denotes a grain stem discharge port formed on the rear side (discharge side) of the threshing chamber 5, 10 is a swinging rack for transfer having a transfer projection 11 provided below the handling net 7, and 12 is a swinging shelf of the threshing chamber 5. Exhaust port, 13
Is a wind selection chamber formed from the lower side of the dust outlet 12 to the rear side, 14 is a swing selection frame provided in the wind selection chamber 13, 1.
5 is a first conveyor, 16 is a second conveyor, 17 is a second object return device for connecting the base to the end of the second conveyor 16 and returning it to the start end of the transfer rocking shelf 10; Reference numeral 19 denotes an auxiliary air blower that blows air to the non-working area of the air blower rack 18 at the end of the transfer rocker rack 10 to diffuse the thresh transferred from the transfer rocker rack 10.

[0007] At the side of the threshing room 5, a cereal culm supply / transport passage 20 is formed from the cereal culm supply port 8 to the cereal culm discharge port 9. The cereal culm supply / conveyance passage 20 is provided with a cereal culm holding / conveying device 21 for supplying cereal culm to the threshing room 5. The grain stalk clamping and conveying device 21 is composed of a supply and transport chain 22 for clamping and transporting the grain stalk and a clamping rod 23, and the clamping rod 23 is a rotating end of an upper cover 24 that covers the upper part of the threshing chamber 5. When the upper cover 24 is moved upward, the upper cover 24 is integrally moved upward. Reference numeral 25 denotes a transport chain guide rail of the supply transport chain 22. A drive gear 26 is provided at the start end of the transport chain guide rail 25.
At the end of the transport chain guide rail 25.
7 are provided, and the supply and transport chain 22 is looped between a driving gear 26 and a passive gear 27.

Thus, the transport chain guide rail 25
Fix the rear end of the mounting bracket 28 to the front side thereof, and fix the upper part of the vertical cylinder 29 to the front end of the mounting bracket 28.
Is mounted on the longitudinal axis 31 of the fixed frame 30 fixed to the body frame 2 side so as to be rotatable only. The fixed frame 30 is formed by a vertical supporting rod 32 having a lower part fixed to the body frame 2 and a front horizontal rod 33 formed by bending an upper part of the vertical supporting rod 32, and a tip of the front horizontal rod 33 is connected to the cutting section 4. Is fixed to a suspension support 35 which is rotatably mounted. A front end of a reinforcement frame 36 in the front-rear direction is fixed to an intermediate portion of the front horizontal rod 33, and a rear end of the reinforcement frame 36 is fixed to a front plate 37 of the threshing apparatus 1. The suspension support 35 is provided above a transmission case 38 of the traveling device 3, and the transmission case 38 is fixed to the body frame 2. Further, the suspension support 35 shown in FIG. 6 is directly fixed to the body frame 2, but any structure may be used.

An upper portion of a vertical frame 39 is fixed to a rear portion of the transport chain guide rail 25, a rear portion of a reinforcing frame 40 in the front-rear direction is fixed to a lower portion of the vertical frame 39, and a lower vertical portion is fixed to a front side of the reinforcing frame 40. The shaft tube 41 is fixed, and the lower vertical tube 41 is fixed to the fixed frame 3.
The lower longitudinal axis 42, which is located on the same axis as the longitudinal axis 31 provided at 0, is rotatably mounted. 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 that surrounds the side of the threshing chamber 5 and the side of the wind selection chamber 13 is attached to the transport chain guide rail 25, and a chain cover 44 of the supply transport chain 22.
When the transport chain guide rail 25 is rotated to rotate the chain cover 44 and the moving side plate 43,
The side of the threshing room 5 and the side of the wind selection room 13 are opened. Further, the moving side plate 43 also has an effect of holding down the handling net 7 when the transport chain guide rail 25 is returned to its original position.

The rotation shaft 45 of the driving gear 26
Is connected to a transmission shaft 47 via a connecting member 46 such as a universal joint or the like,
When the outside 5 is rotated, the connecting member 46 is bent. The transmission shaft 47 is mounted on a gear box 48. The rotating shaft 49 of the passive gear 27 is detachably attached to one end of a left-right transmission shaft 51 mounted on the threshing device 1 side via a connecting member 50 (removable claw clutch or the like). . A pulley 52 is fixed to the other end of the transmission shaft 51, and a belt 55 is looped between the pulley 52 and a pulley 54 fixed to a 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
2 is meshed with a fixed gear 58 on a separate shaft 57 on which is fixed. The other end of the transmission shaft 53 is connected to a gear box 62 provided with a drive gear 61 of a transport chain 60 of the straw transport device 59. Therefore, when the grain squeezing and conveying device 21 is rotated outward, the connection between the passive gear 27 and the transmission shaft 51 can be easily removed at the connection member 50 portion.

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

Thus, the handling cylinder 6 of the present embodiment uses the handling cylinder shaft 73 that rotates in the horizontal axis to move the supply-side moving front plate 74 of the threshing chamber 5.
The supply-side moving front plate 74 has its rear end edge attached to the supply-side fixing plate 76 by the shaft fitting 7.
7, the discharge side moving plate 75 is configured to be detachable with respect to the discharge side fixing plate 78 of the threshing apparatus 1, and the handle supported by the supply side moving front plate 74 and the discharge side moving plate 75. The body 6 is configured to rotate outwardly. In the figure,
70 is a swing mechanism of the swinging shelf 10 for transfer, 71 is a swing mechanism 7
The swing frame body 79 mounted on the handle cylinder 6 during threshing operation
Locking device for fixing the camera to the fuselage side; 80, an operation lever;
1 is a chain rail lock device provided on the end portion side of the transport chain guide rail 25, 82 is an engagement hook of a lock device 81, 83 is an engagement shaft provided on the machine body side where the engagement hook 82 is connected and disconnected, Reference numeral 84 denotes an operation lever of the engagement hook 82. Reference numeral 85 denotes a straw processing unit, 86 denotes a processing cylinder, 87
Is a cross-flow suction wind turbine.

[0013]

Next, the operation will be described. Since the present invention is configured as described above, the cereal stalks mowed by the reaper 4 can be transported by the cereal stalk clamping and conveying device 2.
1, the husks are supplied into the threshing chamber 5 from the culm supply port 8 and threshed by the rotating rotating drum 6 before being discharged from the culm discharge port 9. Moving shelf 1
The threshing material in the threshing room 5 is transported toward the discharge side by the transfer oscillating shelf 10 and enters the wind selection chamber 13. Entering, blast Min 1
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 articles entering the second conveyor 16 are returned to the start end side of the transfer rocking shelf 10 by the second article return device 17 and
Returned to and selected. The grain stalks transported by the grain stalk clamping and transporting device 21 are taken over by the straw transporting device 59 and are processed by the straw processing unit 85 on the rear side of the threshing room 5.

In this case, even if a straw jam occurs in the straw conveying device 59, the straw can be easily removed by moving the upper cover 24 upward to move the straw conveying device 59 upward. A tension clutch pulley 64 is provided on the belt 55 between the pulley 52 and the pulley 54 so as to be able to freely 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 upward, the tip end of the engaging body 69 moves downward and pushes the other end of the rotating arm 65 downward, and the one end 66 of the rotating arm 65 moves up about the shaft 67 to move the tension clutch pulley 64 to the belt. 55, only the straw conveying device 59 can be stopped, and the threshing room 5
The above operation can be performed while the air selection chamber 13 is operated. Further, even if straw is clogged in the straw conveying device 59, only the belt 55 between the pulley 52 and the pulley 54 slips, and other transmission mechanisms are not damaged.

When the upper cover 24 covering the upper part of the handle cylinder 6 is moved upward, the clamping rod 23 is moved upward. In this state, when the operating lever 84 of the chain rail lock device 81 is operated, the engaging hook 82 comes off the engagement shaft 83. When the operation lever 84 or another portion is pulled outward, the transport chain guide rail 25 rotates outward about the longitudinal axis 31. When the moving side plate 43 of the threshing device 1 and the chain cover 44 of the supply conveying chain 22 are attached to the conveying chain guide rail 25, the chain cover 44 and the moving side plate are rotated by rotating the conveying chain guide rail 25. 43, the side of the threshing chamber 5 and the side of the wind selection chamber 13 are opened, and the threshing chamber 5 and the wind selection chamber 13 are opened.
Can be easily maintained. In this case, threshing room 5
The maintenance work can be performed by removing the transfer swing shelf 10 provided below the swing frame body 71 from the swing frame body 71.

Further, in the supply / transport chain 22 of the grain squeezing / conveying apparatus 21, the maintenance of the supply / transport chain 22 is facilitated because the transport chain guide rail 25 rotates substantially horizontally toward the outside. Thus, the transport chain guide rail 25 is provided with a front horizontal rod 33 fixed to a suspension support 35 for rotatably mounting a base of a support pipe 34 of the mowing unit 4.
And, 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 strongly supported. In addition, since the starting portion of the grain culm holding and conveying device 21 is supported by the fixed frame 30 including the front horizontal bar 33 and the reinforcing frame 36, the fixed frame 30 is connected to the machine body frame 2 and the front plate 37 of the threshing device 1. And a part of the strength member that connects the threshing device 1 is also improved. Therefore,
Even if the fixed frame 30 has a lightweight structure, sufficient supporting strength can be ensured, and the position of the starting end of the grain stalk clamping and conveying device 21 is always stable, so that the connection between the starting end of the grain stalk clamping and conveying device 21 and the cutting section 4 is maintained. The relative position is fixed, and the transfer of the cereal stem from the cutting unit 4 is also improved.

[0017]

The present invention provides a traveling device 3, an automatic grain feeding type threshing device 1 provided at a position above the traveling device 3, and a mowing part fixed to a machine frame 2 provided at an upper front end of the traveling device 3. In a combine comprising a suspension support 35 and a cutting unit 4 supported by the suspension support 35, the threshing device 1
The front end of the transfer chain guide rail 25 of the grain stem holding and transferring device 21 is horizontally rotated with respect to a fixed frame 30 having one end fixed to the suspension support base 35 and the other end fixed to the body frame 2. Since this is a combine threshing device in which the fixed frame 30 and the threshing device 1 are connected freely by a reinforcing frame 36, the terminal end of the grain stalk clamping and conveying device 21 can be rotated. Therefore, not only can the place where the clogged grain culm tends to occur between the end portion of the grain stalk clamping and conveying device 21 and the start end portion of the straw conveying device 59 be easily opened and maintenance can be easily performed, but also the transport chain guide rail 25 The front end is firmly supported, and the cereal culm from the mowing part 4 is supported by the cereal culm holding and conveying device 21.
This has the effect of allowing the handover to proceed smoothly.

[Brief description of the drawings]

FIG. 1 is an overall side view.

FIG. 2 is a longitudinal 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 shelf.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Threshing device, 2 ... Airframe, 3 ... Traveling device, 4 ...
Cutting section, 5 ... Threshing room, 6 ... Handling cylinder, 7 ... Handling net, 8 ... Grain stalk supply port, 9 ... Grain stalk discharge port, 10 ... Swinging rack for transfer, 11 ... Transfer protrusion, 12 ... Dust discharge port , 13: Wind selection room, 14: Swing sorting frame, 15: First conveyor, 16: Second conveyor, 17
... Second product return device, 18 ... Blasting Karino, 19 ... Auxiliary blowing Karino, 20 ... Grain culm supply / conveyance passage, 21 ... Grain culm holding / conveying device, 22 ... Supply / convey chain, 23 ... Gangling rod, 24 ... Top cover , 25 ... Conveying chain guide rail, 26 ... Drive gear, 27 ... Passive gear, 28 ... Mounting bracket, 29 ... Vertical cylinder,
Reference numeral 30: fixed frame, 31: vertical axis, 32: vertical support rod, 33: front horizontal rod, 34: support pipe, 35: suspension support, 36 ...
Reinforcement frame, 37 ... front plate, 38 ... mission case, 39 ...
Vertical frame, 40: Reinforcement frame, 41: Lower longitudinal axis cylinder, 42: Lower longitudinal 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
Reference numeral 2: pulley, 53: transmission shaft, 54: pulley, 55: belt, 56: gear, 57: separate shaft, 58: gear, 59: straw conveying device, 60: transport chain, 61: drive 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
... Swing frame pair, 72 ... Universal joint, 73 ... Handling cylinder 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: locking device, 80: operation lever, 81
... Chain rail lock device, 82 ... Engagement hook, 83 ...
Engaging shaft 84 operating lever 85 straw processing unit 86
Processing cylinder, 87: cross-flow suction windmill.

Claims (1)

(57) [Claims] 1. A traveling device 3, an automatic grain feeding type threshing device 1 provided at a position above the traveling device 3, and a reaper suspension support fixed to a body frame 2 provided at an upper front end of the traveling device 3. In the combine consisting of the platform 35 and the mowing part 4 supported by the suspension support 35, the front end of the transport chain guide rail 25 of the grain culm clamping and transporting device 21 of the threshing device 1 has one end connected to the suspension support 35. Axes are fixed to a fixed frame 30 whose part is fixed and the other end of which is fixed to the body frame 2 so as to be freely rotatable horizontally, and the fixed frame 30 and the threshing apparatus 1 are connected by a reinforcing frame 36. Threshing equipment for combine harvesters.