JP2000188935A - Combine transfer power mechanism - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To stably transport a grain stalk from a cutting section to a threshing device. A threshing device (3) is provided above a body frame (1) having a traveling device (2), and a reaper (4) is provided in front of the body frame (1). Rear stock former transporting device 17 for transporting grain stalks backward
And a rear spike transfer device 18, and the threshing device 3 is provided behind the rear stock transfer device 17 and the rear spike transfer device 18.
Transfer device 76 for transferring the cereal stalk to the cereal stalk supply device 30
And a configuration of a combine transfer power transmission mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine transmission mechanism.

[0002]

2. Description of the Related Art Conventionally, Japanese Utility Model Publication No. Sho 59-2246 discloses an engine A, a continuously variable main transmission B, a traveling device C (having no cutting section transmission), and a culm in a field. A cutting section D, a threshing room having a grain culm supply device, and a cutting section D
In the apparatus having the rear stock transfer apparatus and the rear spike transfer apparatus E provided between the stalk feeding device and the transfer unit F, the transfer apparatus C, the cutting unit D, the transfer apparatus E, and the transfer apparatus The power transmission configuration with the device F is changed from the engine A via the continuously variable main transmission B to the traveling device C, the reaping unit D, the rear stock transfer device, the rear tip transfer device E, and the transfer transfer device F, respectively. A description is given of a combine transfer mechanism configured to be transmitted (FIG. 2).

[0003]

In the above-mentioned known example, the harvested grain culm is fed from a rear stock transfer apparatus and a rear spike transfer apparatus E via a transfer apparatus F to a grain culm supply apparatus of a threshing apparatus. During the transfer, the grain culm was not smoothly conveyed, and culm spills occurred and the conveying posture of the grain culm was disturbed.

[0004]

SUMMARY OF THE INVENTION The object of the present invention is to smoothly transfer a harvested grain culm to a grain culm supply device of a threshing device.

[0005]

According to the first aspect of the present invention, a threshing device 3 is provided above a body frame 1 having a traveling device 2, and a reaper 4 is provided in front of the body frame 1. On the rear side of the reaper 4, a rear stock transfer device 1 for transporting the grain stalks harvested by the reaper 4 rearward.
7 and a rear spike conveying device 18 are provided, and on the rear left side of the rear stock transfer device 17 and the rear spike conveying device 18, the cereals are conveyed to the cereal culm supply device 30 of the threshing device 3. The transfer conveyance mechanism of the combine is characterized in that a transfer conveyance device 76 is provided. In the invention described in claim 2, the rear stock transfer device 17 and the rear tip transfer device 18 are used.
The transfer speed of the combine transfer device according to claim 1, wherein the transfer speed of the takeover transfer device 76 is changed in relation to the transfer speed change of the transfer device. In the third aspect of the present invention, the rear portion of the rear transport device 17 and the front portion of the take-over transport device 76 overlap each other in a side view, and the transport of the combine according to the first or second aspect, It is a transmission mechanism. In the invention according to claim 4, the input drive of the takeover transport device 76 is configured to input drive to the rear part of the takeover transport device 76, and the input drive of the cereal culm supply device 30 is configured to perform the input drive of the cereal culm. An input drive to a rear part of the supply device 30 is provided as a transfer transmission mechanism for a combine according to claim 1, 2 or 3. According to the fifth aspect of the present invention, the power from the engine 43 is input to the gear case 56 via the continuously variable main transmission 45, and the power is transmitted from the gear case 56 to the handover transfer device 76 and the reaper 4. Claim 1 or Claim 2 or Claim 3 characterized in that:
It is a transport transmission mechanism for the combine described.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Is a body frame of a combine, 2 is a traveling device provided below the body frame 1, 3 is a threshing device provided above the body frame 1, 4 is a reaping unit provided in front of the body frame 1, 5 is the reaping unit 4 is a weeding body, 6 is a pulling device, 7 is a scraping device, 8 is a cutting blade, 9 is a front stock transfer device, 10 is a front spike transfer device, 11 is a rear focusing device, and 12 is a cutting unit frame. . The reaper 4 fixes the lower part of the support pipe 13 to the reaper frame 12, and rotatably mounts a horizontal cylinder 14 fixed to the base of the support pipe 13 on an upper part of a support base 15 provided on the machine body side. In each of the horizontal tube 14 and the support pipe 13, a transmission shaft for transmitting power to the mowing unit 4 is incorporated. 16 is a cutting vertical cylinder, 17 is a cutting unit 4
Rear feeder transporting device for transporting the culms harvested in the rearward direction to the threshing device 3 at the rear, reference numeral 18 denotes a rear ear tip transporting device, which have a known configuration, Is constituted by a transport chain 19 and a sandwiching rod 20 provided in the vicinity of the transport chain 19 so as to face each other. Although not shown, the transport chain 19 is wrapped around a guide rail and a plurality of guide rollers rotating on a vertical axis provided on a frame to which the guide rail is attached, and a base of the frame is provided on an upper portion of the support pipe 13. Each of the front stock transfer devices 9 and the front spike transfer device 1 are rotatably mounted on the horizontal cylinder 14 side.
The starting end of the transport chain 19 facing the takeover point at the end of 0 is raised and lowered, so that the handling depth supplied to the threshing device 3 is adjustable. 21 is a handling depth adjusting device,
Reference numeral 22 denotes a culm length detection switch.

The rear spike transfer device 18 includes a transfer lug 23.
Is wound around a drive mechanism for rotating the longitudinal axis inside the case 24, and the base of the case 24 is supported by the support pipe 1.
3 is rotatably attached to the upper side of the horizontal cylinder 14. Reference numeral 25 denotes a mounting arm, reference numeral 26 denotes a mounting member, and reference numeral 27 denotes a guide for the rear spike transfer device 18. Reference numeral 30 denotes a cereal culm supply device for supplying cereal culm to the threshing room 31 of the threshing device 3, and is constituted by a supply and transport chain 32 and a clamping rod 33. Pinching rod 3
3 is attached to the side edge of the upper cover 34 of the threshing device 3,
When the upper cover 34 is opened upward, it moves upward accordingly. The supply and transport chain 32 is hung between a passive gear 36 provided at a starting end of a guide rail 35 in the front-rear direction and a driving gear 37 provided at a terminating end, and is provided on a vertical side provided at the starting end of the guide rail 35. The lower part of the column 38 is rotatably attached to the support frame 39. That is, the grain culm supply device 30 is configured such that the terminal end portion rotates sideways around the vertical column 38. The lower part of the support frame 39 is fixed to the body frame 1, and the upper part is bent and fixed to the front plate of the threshing device 3. A side cover 40 is attached to the guide rail 35 side, and the side cover 40 and the guide rail 35 are configured to rotate integrally outward.

Reference numeral 43 denotes an engine; 44, a transmission case for transmitting power to the traveling device 2 on which the support 15 is mounted; 45, a hydraulic stepless main transmission provided on the transmission case 44; The rotation is transmitted to the reaper input pulley 46 via a transmission path from a hydraulic continuously variable main transmission 45 that is branched from a transmission path to the transmission case 44 of the traveling device 2. The traveling speed of the traveling device 2 and the working speed of the reaper 4 are both changed to an optimum speed. 47 is an engine output pulley of the engine 43, 48 is an engine output passive pulley provided in the hydraulic continuously variable main transmission 45, 49 is a belt, 50 is provided between the hydraulic continuously variable main transmission 45 and the transmission case 44. A gear box, 51 is a bearing, 52 is a reaping section transmission device described later provided between the gear box 50 and the bearing 51, 53 and 54 are pulleys, 55 is a belt, 56 is a gear case, 57 is a reaping section output pulley, 58 is A belt 59 is an output pulley for outputting to the threshing device 3.

The reaping section transmission 52 comprises a belt 62, a driving split pulley 63 and a passive split pulley 64. The driving split pulley 63 and the passive split pulley 64 are adjusted in width by cam bodies 65 and 66, respectively. The cam bodies 65 and 66 are configured to operate in the opposite direction to each other while changing the effective diameter by changing the effective diameter.
Are provided, the arms 67 are connected by a rod 68, and the rod 68 is moved by a rod 70 moved by a motor 69. 71 is a top provided at the base of the rod 70, 72
Is a screw shaft which is rotated by the motor 69 screwed with the top 71, and 73 is a detent guide for the top 71.
The reaping unit transmission device 52 independently changes the working speed of the reaping unit 4 with respect to the traveling speed of the traveling device 2, and increases the working speed of the reaping unit 4 during the cutting work of the lodging grain culm. It should be noted that not only the working speed of the reaping unit 4 is independently changed by the reaping unit transmission device 52, but also the traveling speed of the traveling device 2 which is shifted by the auxiliary transmission device in the transmission case 44. It is also possible to adopt a configuration in which the working speeds of the two correspond to each other. The passive split pulley 64 has its rotary shaft 74 attached to the bearing 51 via a one-way rotation transmission clutch (one-way clutch) 75. When the hydraulic continuously variable main transmission 45 transmits reverse rotation, The reverse rotation is not transmitted to the reaper 4.

[0010] Thus, a handover transfer device 76 is provided between the end of the rear stock transfer device 17 and the rear spike transfer device 18 and the start end of the transfer chain 32 of the grain culm supply device 30. The transfer device 76 has an intermediate portion of the chain guide rail 77 mounted on the support frame 39, and a pair of horizontal rotating passive gears 78, 78 at the front and rear ends of the chain guide rail 77.
And the transfer gear chain 80 is attached to the passive gears 78, 78.
Around. Reference numeral 81 denotes a separately provided guide gear, which also serves as a tension gear. Then, a fixed drive gear 83 is engaged with the rotation shaft 82 projecting from the gear case 56 with the takeover conveyance chain 80. Therefore, the transfer device 76
Is also changed by the hydraulic continuously variable main transmission 45 in proportion to the traveling speed of the traveling device 2, and is also shifted by the cutting unit transmission 52 in synchronization with the working speed of the cutting unit 4. In the culm supply device 30, the constant rotation of the engine 43 is constantly transmitted, so that the transport speed is constant. The starting end of the transfer chain 80 faces the lower end of the transfer chain 19 of the rear stock transfer device 17, and the guide guide 8 is located above the transfer chain 80.
5 is provided. The guide guide 85 has its start end facing the end of the rear stock transfer device 17 and rear end tip transfer device 18, and its end end is desired to be above the start end of the take-over transfer chain 80. It is configured to be movable between an operation position located above the start end of the transfer chain 80 and a retreat position farther from above the start end of the takeover transfer chain 80, and can easily perform maintenance as well as guiding the grain culm. Like that. Specifically, the guide 85 is formed by a shaft member that is parallel to the conveying direction of the grain culm (front-back direction), and the starting end of the guide 85 is bent in a direction intersecting the conveying direction of the grain culm. The bent portion is rotatably attached to the end portion of the attachment member 26 of the guide 27 of the rear spike transport device 18 and slidably in a direction intersecting the transport direction.
The guide 85 is urged by a spring so as to be located above the start end of the take-over transport chain 80.

FIG. 12 shows a control for controlling the working speed of the cutting section 4, the transfer speeds of the rear stock transfer device 17, the rear ear transfer device 18 and the transfer transfer device 76, and the running speed of the transfer device 2. FIG. 6 shows a mechanism, a culm length detection switch 22 provided in the handling depth adjusting device 21, and a transmission case 44.
, A position detection sensor (potentiometer) 88 of a main transmission operation lever 87 of the hydraulic continuously variable main transmission 45, and an on / off detection switch 90 of a reaping clutch operation lever 89. The motor 69 of the reaping section transmission 52 is controlled by the data.

Further, the conveying speed A of the grain stalk supply device 30
The transfer speed B of the transfer transfer device 76 and the rear stock transfer device 1
7 and the transport speed C of the rear ear tip transport device 18, A <
In some cases, B <C. That is, the transfer speed B of the transfer transfer device 76 is set to a value close to the middle between the maximum transfer speed C of the rear stock transfer device 17 and the rear tip transfer device 18 and the transfer speed A (constant speed) of the grain culm supply device 30. The maximum speed is set. In the drawing, reference numeral 92 denotes a handling cylinder, 93 denotes a handling net, 94 denotes a straw conveying device, 95 denotes a straw processing unit having a binding device or a cutter provided at the rear of the threshing device 3, 96 denotes a Glen tank, and 97 denotes a lock device. It is.

[0013]

Next, the operation will be described. The present invention is configured as described above. When the engine 43 is started, the rotation is transmitted to the hydraulic continuously variable main transmission 45 and the operation lever 87 in the driver's seat is operated.
With the operation, the hydraulic continuously variable main transmission 45 continuously changes the rotation speed and transmits the rotation to the transmission case 44 of the traveling device 2 to move the machine forward, while transmitting the transmission from the transmission case 44 to the reaper input pulley 46. Then, the respective parts of the cutting unit 4 are operated, the weeds 5 are used for weeding. The root side of the culm cut and cut by the blade 8 is conveyed to the take-over point by the front-side conveyer device 10 by the front-side stock conveying device 9, and the root of the cereal culm conveyed to the take-over point is rearward. It is pinched and conveyed by a longitudinally rotating gear of the side stock conveying device 17, a rotating conveying chain 19 and a clamping rod 20, and the tip side is guided by a guide 27 and conveyed by a conveying lug 23 of a rear tip conveying device 18. Is done.

At the end portions of the rear stock transfer device 17 and the rear tip transfer device 18, the passive gear 78, which rotates in the horizontal axis, is used.
Transfer chain 80 of the transfer device 76 wound around
And a transfer guide 76 above the transfer transfer chain 80, and a transfer transfer device 76 transfers to the supply transfer chain 32 of the grain culm supply device 30 and supplies the supply to the threshing chamber 31 of the threshing device 3 to rotate the handling cylinder. Threshing is carried out by 92, threshing is selected and taken out of the machine, and the threshed waste is transported to a straw processing unit 95 by a straw transporting device 94 for processing. In the above case, the grain culm is in an upright state at the end portions of the rear stock transfer device 17 and the rear spike transfer device 18, but is taken over by the guide 27, and the take-over transfer chain 80 is rotated horizontally. In the final posture in which the grain culm is lying down, the grain culm feeding device 30 is not disturbed.
Of the cereal culm is prevented and the handover is ensured. In addition, since the transfer conveyor 76 is parallel to the feed conveyor chain 32 of the grain culm supply device 30 and is located inside, not only the side view can be superimposed, but also the transfer is ensured, Short culm can be transported reliably. In addition, the start end of the transfer conveyor chain 80 of the transfer conveyor system 76 faces the lower end of the rear stock transfer system 17 and the supply transfer chain 3 of the grain culm supply system 30.
Since the start end of 2 is located below the end of the transfer conveyance chain 80, the transfer in each transfer section is performed favorably.

The drive gear 83 of the transfer conveyor chain 80
Are provided on the rotating shaft 82 protruding from the gear case 56 provided on the side between the front and rear passive gears 78, so that the positional relationship between the drive gear 83 and the front and rear passive gears 78 can be accurately arranged. And make sure it works. Also,
The clutch 41 is attached to the input pulley 54 of the gear case 56.
When the mowing unit 4 is stopped, the take-over transport device 76 is also stopped, and the start is synchronized, so that the take-over is good and the transport posture of the grain culm is also good. Also, since the gear case 56 is fixed to the front plate of the threshing device 3 by the stay 42, the take-over transport device 76 and the rear side stock transport device 1
7 and the positional relationship between the rear-side ear transfer device 18 and the grain culm supply device 30 can also be fixed, and the operation is assured.

When the traveling device 2 is stopped by the hydraulic stepless main transmission 45, the reaping unit 4 and the take-over transfer device 76 are stopped, so that the work is assured and the operability is improved. When the machine body is stopped by the subtransmission, the rotation is transmitted from the hydraulic stepless main transmission 45 to the reaping unit 4 and the take-over conveyance device 76, so that the culm being conveyed by the reaping unit 4 or the like is transferred. Threshing device 3
Can be supplied. Thus, the hydraulic continuously variable main transmission 45 transmits the reverse rotation to the transmission case 44, but the passive split pulley 64 of the mowing unit transmission 52 is connected to the rotating shaft mounted on the bearing 51 via the one-way rotation transmission clutch 75. The attachment 74 prevents the reverse rotation from being transmitted to the reaper 4, the transfer device 76 and the like. At this time, the rotating shaft 74
Is mounted on the one-way rotation transmission clutch 75 provided on the bearing 51, so that maintenance can be performed easily.

In the case where the culm in the field is in the lodging state, if the working speed of the cutting unit 4 is slower than the traveling speed, the lodging culm may not be sufficiently pulled up.
When the rotation transmitted to the reaping unit 4 is increased by operating the reaping unit transmission 52, the work can be performed reliably.
That is, normally, the traveling device 2 and the reaping unit 4 are shifted in proportion to each other by the hydraulic continuously variable main transmission 45, but the working speed of the reaping unit 4 and the rear stock transfer are independently controlled by the reaping unit transmission 52. By changing the transport speeds of the device 17, the rear ear tip transport device 18, and the stock takeover transport device 76, the operation speed according to the state of the grain culm can be selected.

In this case, the conveying speed A of the grain stalk feeding device 30
And the transfer speed B of the takeover transfer device 76 and the transfer speed C of the rear stock source transfer device 17 and the rear spike transfer device 18
When the relationship A <B <C is satisfied, the speed is reduced by the transfer from the rear stock source transfer device 17 and the rear spike transfer device 18 to the transfer transfer device 76, and the grain transfer device 30 is transferred from the transfer transfer device 76.
The amount of the cereal stem increases and becomes thicker as it is conveyed toward the cereal culm supply device 30, and the conveying speed gradually decreases, so that the conveying posture is improved.

Thus, the grain culm supply device 30 lifts the upper cover 34 of the threshing device and moves the clamping rod 33 upward to open the upper surface of the supply and transport chain 32. After disconnecting the transmission and unlocking the lock device 97 for fixing the terminal end of the guide rail 35 to the machine side, the terminal end of the guide rail 35 is pivoted outward around the vertical column 38 to supply grain culm. The device 30 and the threshing room 31 of the threshing device 3 are maintained.

[0020]

According to the first aspect of the present invention, the cereal culm is moved from the rear stock transfer device 17 and the rear spike transfer device 18 to the rear left side of the rear stock transfer device 17 and the rear spike transfer device 18. Is smoothly transported to the take-over transport device 76 disposed at In the invention according to claim 2, the transfer of the grain culm can be carried out by reducing the speed difference between the transfer speed of the rear stock transfer device 17 and the rear spike transfer device 18 and the transfer speed of the transfer transfer device 76. Become smooth. According to the third aspect of the present invention, the grain culm is stably conveyed because there is a portion that is simultaneously conveyed at the rear portion of the rear stock transfer device 17 and at the front portion of the transfer device 76. Claim 4
In the described invention, the input drive of the transfer device 76 is input to the rear portion of the transfer device 76, so that the input drive of the transfer device 76 does not affect the arrangement of the rear stock transfer device 17 located in front of the transfer device 76. Do not give. In addition, since the input drive of the grain culm supply device 30 of the threshing device 3 is configured to input to the rear part of the grain culm supply device 30, it does not affect the arrangement of the takeover transport device 76. According to the fifth aspect of the present invention, since the power is transmitted from one gear case 56 to the transfer device 76 and the reaper 4, the power transmission system can be simplified and the weight can be reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of the present invention.

FIG. 2 is an explanatory diagram of a known example.

FIG. 3 is a side view.

FIG. 4 is a plan view.

FIG. 5 is a side view.

FIG. 6 is a side view of the transmission.

FIG. 7 is a side view.

FIG. 8 is a partial perspective view.

FIG. 9 is a perspective view.

FIG. 10 is a schematic diagram of a transmission mechanism.

FIG. 11 is a plan view.

FIG. 12 is a control mechanism diagram.

FIG. 13 is an explanatory diagram of another embodiment.

FIG. 14 is an explanatory view of the same operation state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Body frame, 2 ... Traveling device, 3 ... Threshing device, 4 ...
Cutting part, 5 ... Weeding body, 6 ... Raising device, 7 ... Scraping device, 8
... Cutting blade, 9 ... Front stock transfer device, 10 ... Front tip transfer device, 12 ... Cutting section frame, 13 ... Support pipe, 14 ...
Horizontal cylinder, 15: Support base, 16: Cutting vertical cylinder 17: Rear stock transfer device, 18: Rear tip transfer device, 19: Transfer chain, 20: Clamping rod, 21: Depth adjustment device, 22 …
Stalk length detection switch, 23: transport lug, 24: case, 2
5 mounting arm, 26 mounting member, 27 guide guide,
Reference Signs List 30 cereal stalk supply device, 32 transport chain, 33 clamping rod, 34 upper cover, 35 guide rail, 36 passive gear, 37 drive gear, 38 vertical column, 39 support frame, 40 Side cover, 41 ... clutch, 42 ... stay, 43 ... engine, 44 ... transmission case, 45 ...
Hydraulic stepless main transmission, 46 ... input part pulley of reaper, 47
... engine output pulley, 48 ... engine output passive pulley, 49 ... belt, 50 ... gear box, 51 ... bearing,
52: mowing section transmission, 53, 54: pulley, 55: belt, 56: gear case, 57: mowing section output pulley, 5
8 belt, 59 output pulley, 62 belt, 63
Driving split pulley, 64: passive split pulley, 65, 66: cam body, 67: arm, 68: rod, 69: motor, 70
... Rod, 71 ... Top, 72 ... Screw shaft, 73 ... Detent guide, 74 ... Rotating shaft, 75 ... One-way rotation transmission clutch, 76 ... Intermediate takeover conveyance device, 77 ... Chain guide rail, 78 ... Passive gear, 80 .., Takeover conveyance chain, 81, guide gear, 82, rotating shaft, 83, drive gear, 85, guide guide, 86, vehicle speed sensor, 87, main speed change operation lever, 8
8 position detection sensor 89 reaping clutch operation lever
90 ... ON / OFF detection switch, 92 ... handling cylinder, 93 ... handling net, 9
4: Straw conveying device, 95: Straw processing unit, 96: Glen tank, 97: Lock device.

Claims (5)

[Claims] 1. A threshing device 3 is provided above a body frame 1 having a traveling device 2, a reaper 4 is provided in front of the body frame 1, and a reaper 4 is provided behind the reaper 4. Rear stock transfer device 17 for transferring the grain culm backward
And a rear spike transfer device 18, and the threshing device 3 is provided behind the rear stock transfer device 17 and the rear spike transfer device 18.
Transfer device 76 for transferring the cereal stalk to the cereal stalk supply device 30
A transfer mechanism for a combine, comprising: 2. The transfer speed of the takeover transfer device 76 is changed in relation to the change of the transfer speed of the rear stock transfer device 17 and the rear spike transfer device 18. The transporting transmission mechanism for a combine according to claim 1. 3. The combine transmission mechanism according to claim 1, wherein a rear portion of said rear stock transfer device 17 and a front portion of said takeover transfer device 76 overlap each other in a side view. . 4. The input drive of the transfer conveyor 76 is configured to drive the rear of the transfer conveyor 76, and the input drive of the grain feeder 30 is controlled by the input of the grain feeder 30. 4. The combine transmission drive mechanism according to claim 1, wherein the rear drive section is configured to be driven to input. 5. A structure in which power from an engine 43 is input to a gear case 56 via a continuously variable main transmission 45, and power is transmitted from the gear case 56 to the transfer device 76 and the reaper 4. The transporting transmission mechanism for a combine according to claim 1, 2 or 3.