JP3731278B2 - Combine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a harvesting lateral movement device for a combine, and in a configuration in which the harvesting device is laterally moved with respect to a vehicle body, the lateral movement device and the transmission configuration are simplified.
[0002]
[Problems to be solved by the invention]
In the configuration in which the hydraulic cylinder is used to move the reaping device laterally, the arrangement position of the hydraulic cylinder is limited to a position that does not interfere with reaping, grain transportation, and the like, and thus the configuration is complicated.
[0003]
[Means for Solving the Problems]
The present invention, the vehicle body (1) a vertically movable for cutting the slide tube having in a frame hydraulic cylinder (3) provided at the front end of (2) a piston (8) (9) the left and right move possible for to provided, when integrated cereal稈引electromotive device relative to the slide tube (9) and (4) grain稈掻write device (5) and cutting blade device (6) consisting of a cutting device (7), wherein Pipes that project the left and right ends of the slide tube (9) to the left and right sides of the hydraulic cylinder (3) and support the upper ends of the grain raising case (26) of the grain raising device (4) on the left and right ends. Left and right pulling support frames (27, 28) are provided, the cutting blade device (6) is driven from the right end of the cutting transmission shaft ( 10 ) provided in the slide tube (9), and the cutting transmission shaft (10) Within the cutting width of the cutting device (7) from the left end of the A star wheel (36) and a lug belt (37) of the culm scraping device (5) on one side via a transmission shaft (38) in the pulling support frame (27) refracting in the middle in the vertical direction toward A lift cylinder (24) for raising and lowering the harvesting frame (2) and an auger cylinder (54 for raising and lowering the grain auger (15) of the glen tank (14) mounted on the vehicle body (1). ) And a pair of left and right steering push cylinders (55) for disengaging and operating the steering clutch of the traveling device (11) provided in the vehicle body (1), the hydraulic pump (P) the pressure oil diverter valve (56) the lift cylinder to the circuit (57) for steering with the steering Pusshi Yushirinda (55) by (24) and the work circuit having auger cylinder (54) (58) And the working circuit (58) is joined to the steering circuit (57) via the check valve (59) for preventing backflow, and the vehicle speed or the hydraulic pump (P ) and Konbai's configuration you characterized by being configured so as to obtain the response of the steering push cylinder (55) corresponding to the rotational speed.
[0004]
【The invention's effect】
The reaping device 7 is moved up and down by the vertical movement of the reaping frame 2 with respect to the vehicle body 1 to adjust the reaping height, or to the reaping position or the non-reaching position. Further, when the cutting position with respect to the vehicle body is changed to the left and right by being moved laterally, the cutting device 7 can be moved laterally with respect to the cutting frame 2 by the expansion and contraction of the hydraulic cylinder 3. The cutting device 7 is moved piston 8 and integrally with the slide tube 9 of the hydraulic cylinder 3, performs reaper transmission while also lateral movement etc. reaper transmission shaft 10 in these slide tube 9 with cutting winding device 7 Since the cutting transmission shaft 10 is provided in the hydraulic cylinder 3 together with the slide tube 9 as a double structure, a special transmission shaft case is not required, and the weight and size can be reduced.
Further, the surplus flow generated by the diversion valve 56 is joined to the steering circuit 57 via the work circuit 58 via the check valve 59 to perform the steering control. The steering push cylinder 55 can be responsive in accordance with the vehicle speed or the rotational speed of the pump P during traveling by automatic steering control.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The combine has a vehicle body 1 having a crawler travel device 11, a reaping device 7 supported on one front side, a threshing device 12 mounted on the rear side, and a steering device 13 and an engine provided on the other front side. The grain tank 14, the cerealing auger 15, etc. are mounted on the rear part, and the cereals harvested by the reaping device 7 are fed between the feed chain 17 and the cocoon 18 of the threshing device 12 by the culm transporting device 16. The tip is fed into the threshing chamber 19 while being transferred by the feed chain 17 and threshed and selected, and the threshed grain is transferred to the lateral grain tank 14 by the masher 20. The supply is accommodated.
[0006]
The cutting device 7 includes a cutting frame 2 supported by a bracket 21 at the front portion of the vehicle body 1, a weed frame 22 that is laterally moved by a hydraulic cylinder 3 in front of the cutting frame 2, a cutting blade device 6, It is comprised from the cereal habit raising apparatus 4, the cereal haul pick-up device 5, and the like. The grain feeder 16 is supported by a bracket 29 around the cutting lift shaft 23 of the cutting frame 2.
[0007]
The cutting frame 2 is supported by the cutting lift shaft 23 on the bracket 21 at the rear end, and is lifted and lowered by a hydraulic expansion / contraction lift cylinder 24 between the cutting frame 2 and the vehicle body 1. The hydraulic cylinder 3 is fixed to the front end of the cutting frame 2 in the left-right direction, and the left and right ends of the slide tube 9 integrated with the piston 8 inserted into the hydraulic cylinder 3 are connected to the left and right sides of the hydraulic cylinder 3. A side frame 25 made up of a gear case, a bracket, or the like is integrated at both left and right ends, the cutting blade device 6 is attached to the side frame 25, and the weeding frame 22 protrudes forward, thereby causing a grain raising case. Pipe-like left and right pulling support frames 27 and 28 are provided to support the upper end of 26.
[0008]
A weeding board 30 is provided at the front end of the weeding frame 22, and a lower end portion of the pulling case 26 is supported. A chain that is stretched up and down in the pulling case 26 is provided with a pulling tine 31, and can be raised by engaging the whole body by rotation. This transmission is performed by the sprocket shafts 32 and 33 at the upper end of the pulling case 26, and a pair of left and right grain raising devices 4 are configured.
[0009]
The cereal scraping device 5 is provided on the lower brackets 34 and 35 of the left and right pulling support frames 27 and 28, and a star wheel 36 that rakes the chopped cereal on the upper side of the cutting blade device 6 and a lug belt 37 on the upper side. By transmitting the one side star wheel 36, the lug belt 37, etc. via the gear 39 mechanism from the transmission shaft 38 in the pulling support frame 27, the opposite side star wheel 36 is transmitted and rotated by mutual occlusion. The lug belt 37 is also rotated.
[0010]
A guide rod 40 is provided between the left and right side frames 25 in parallel with the slide tube 9, and guides the hydraulic cylinder 3 by fitting a front portion of an integral cylinder cover 41.
The transmission configuration of the reaping device 7 has an input pulley 42 with the reaping lift shaft 23 as an input shaft and can be driven from the engine side. The harvesting / lowering shaft 23 drives the grain feeder 16 through the gear 43 mechanism, and the harvesting device portion 7R of the right portion of the harvesting device 7 is connected via a harvesting transmission shaft 44 having a universal joint, an expansion / contraction shaft joint and the like. Do the transmission. The front end of the cutting transmission shaft 44 is linked to the sprocket shaft 33 in the right pulling case 26 and linked to the transmission shaft 46 in the pulling support frame 28 via the gear 45.
[0011]
The cutting transmission shaft 10 is positioned in the slide pipe 9, but is transmitted from the lower end portion of the transmission shaft 46 in the pulling support frame 28 via a gear 47. Further, the bell crank 49 is rocked from the right end of the cutting transmission shaft 10 through the gear 48 to drive the clipper-shaped cutting blade device 6. Further, the left end of the cutting transmission shaft 10 is transmitted through the gear 50 to the left cutting device portion 7L. The gear 50 interlocks the transmission shaft 38 in the left pull-up support frame 27. Further, as described above, the transmission shaft 38 is interlocked with the grain scraping device 5 via the gear 39 mechanism, and the sprocket shaft 32 of the left pulling case 26 is interlocked with the gear 51 from the upper end.
[0012]
The lateral movement of the reaping device 7 is performed by a hydraulic drive device 52 attached to the reaping frame 2, and the oil sent by the hydraulic drive device 52 is supplied and discharged by pipes 53 to the left and right ends of the hydraulic cylinder 3, The piston 8 and the slide tube 9 are moved left and right. The hydraulic drive device 52 includes a transmission motor, a hydraulic pump driven by the motor, an oil tank that stores oil, a switching valve that switches a hydraulic direction, and the like in a case. Even if the mounting and cutting device 7 is moved laterally along the frame 2, the position of the hydraulic cylinder 3 does not change.
[0013]
In FIG. 7, the difference from the above example is that the lift cylinder 24 for raising and lowering the harvesting, the auger cylinder 54 for raising and lowering the grain auger 15, and a pair of left and right steering push cylinders for operating the steering clutch of the traveling device 11. 55, the hydraulic pressure from the hydraulic pump P is divided into a steering circuit 57 for the steering push cylinder 55 and a working circuit 58 such as the other lift cylinder 24 and auger cylinder 54 by the diversion valve 56. In the diversion configuration, the circuit 58 on the lift cylinder 24 side and the like is joined to the steering circuit 57 by the backflow prevention check valve 59.
[0014]
60 is a steering clutch switching control valve, 61 is a power steering relief valve, 62 is an auger lifting control switching control valve, 63 is a mowing lifting control switching control valve, and T is a tank port.
The surplus flow caused by the diversion valve 56 flows out from the neutral position of the switching control valve 63 for cutting up and down, and the oil in the working circuit 58 is joined to the steering circuit 57 via the check valve 59 to perform steering control. Thus, the normal work elevating control and the traveling direction control can be operated simultaneously, and when traveling by the automatic steering control, the entire flow rate of the steering push cylinder 55 is flowed. The response of the steering push cylinder 55 according to the above is obtained.
[0015]
In FIG. 8, the difference from the above example is that a steering relief valve 64 is provided on the control flow side which is the steering circuit 57 of the flow dividing valve 56, and the power steering relief valve 61 is fully operated, The raising and lowering operations of the reaping device 7 and the cerealing auger 15 can be performed simultaneously. The full flow pressure of the relief valve 64 is set lower than the cracking pressure of the main relief valve 65. These steering relief valves 64 are configured in the same valve body 66 as the diversion valve 56 and the main relief valve 65, and are joined to the control valve body 67 of the switching control valve 62 to simplify the piping configuration. Yes.
[0016]
9, 10, and 11, the difference from the above example is that a valve body 66 having the flow dividing valve 56 and the relief valve 65 and a valve body 67 of the auger up / down switching control valve 62 are connected by a bolt 68. The hydraulic circuit between the two is connected in series and is disposed near the hydraulic pump P. The switching control valve 62 may be configured to be operated by the operation lever 69 (FIG. 9), or may be configured to be operated by the electromagnetic solenoid 70 (FIG. 10). In this case, the check valve 71 is provided on the cylinder 54 port side of the switching control valve 62.
[0017]
The valve body 67 coupled to the valve body 66 of the flow dividing valve 56 is not limited to the switching control valve 62 for the cerealing auger, but is also used for the switching control valve 63 for lifting and lowering the cutting and for other work switching. It is good also as a valve body of a control valve.
In FIG. 12, the difference from the above example is that the configuration of the hydraulic circuit by the hydraulic pump P is different from the lift cylinder 24 for raising and lowering the cutting, the circuit of this switching control valve 63, and the steering push cylinder for steering control. 55, and the circuit of the switching control valve 60 and the power steering relief valve 61, and the expansion and contraction of the auger cylinder 54 for controlling the raising and lowering of the grain auger 15 is performed by hydraulic pressure by a hydraulic drive device 72, and the cutting device 7 The mowing slide cylinder 73 for changing the mowing position with respect to the running position of the traveling device 11 by laterally moving the vehicle to the left and right with respect to the vehicle body 1 to the mowing frame 2 is also performed by the hydraulic pressure by the same hydraulic drive device 74. In this configuration, the configuration of the hydraulic circuit is simplified, pressure loss is reduced, and an increase in oil temperature is prevented.
[0018]
The hydraulic drive devices 72 and 74 are independent of each other, and hydraulic pressure is used to hydraulically operate an electric motor, a hydraulic pump driven by the electric motor, an oil tank that accommodates the oil, and a piston 75 of the auger cylinder 54. A switching valve for switching the direction, a switching valve for switching the hydraulic direction for hydraulically actuating the piston 76 of the cutting slide cylinder 73, and the like. Can be activated by connecting to a power source. The hydraulic drive device 72 may have a smaller capacity than 74.
[0019]
In FIG. 13, the difference from the above example is that, in place of the auger up / down switching control valve 62 in FIG. 7, a switching valve 77 operated by a single solenoid SOL. A valve 78 is provided, and the single acting cylinder 54 is operated by the switching valve 77 to raise the grain auger 15 and lowered by the poppet valve 78, and the rising and lowering speeds are controlled by the poppet valve 78.
[Brief description of the drawings]
FIG. 1 is a perspective view of a part of a reaping device.
FIG. 2 is a perspective view of the transmission mechanism.
FIG. 3 is a left side view of a reaping device section.
FIG. 4 is a front view of a part thereof.
FIG. 5 is a partial cross-sectional view and a side view.
FIG. 6 is a side view of the combine.
FIG. 7 is a hydraulic circuit diagram of an operation system.
FIG. 8 is a hydraulic circuit diagram of an operation system.
FIG. 9 is a hydraulic circuit diagram of an operation system.
FIG. 10 is a hydraulic circuit diagram of an operation system.
FIG. 11 is a front sectional view, left and right side views, and a plan view.
FIG. 12 is a hydraulic circuit diagram of an operation system.
FIG. 13 is a hydraulic circuit diagram of an operation system.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Car body 2 Cutting frame 3 Hydraulic cylinder 4 Grain picking device 5 Grain picking device 6 Cutting blade device 7 Cutting device 8 Piston 9 Slide tube 10 Cutting shaft
11 traveling device
14 Glen Tank
15 threshing auger
24 lift cylinder
27 Left pull-up support frame
28 Right pulling support frame
36 star foil
37 lug belt
38 transmission shaft
54 auger cylinder
55 steering push linda
56 minute flow valve
57 steering circuit
58 working circuit
59 check valve
P hydraulic pump

Claims (1)

The liftable the reaper slide tube having in a frame hydraulic cylinder (3) provided at the front end of (2) a piston (8) (9) provided to be horizontally moved relative to the vehicle body (1), the Upon integrating cereal稈引electromotive device with respect to the slide tube (9) and (4) grain稈掻write device (5) and consisting of a cutting blade device (6) cutting device (7), said slide tube (9 The left and right end portions of the left and right sides of the hydraulic cylinder (3) are protruded to the left and right sides of the hydraulic cylinder (3), and the left and right end portions support the upper end portion of the grain raising case (26) of the grain raising device (4). The pulling support frame (27, 28) is provided, and the cutting blade device (6) is driven from the right end of the cutting transmission shaft ( 10 ) provided in the slide tube (9) and from the left end portion of the cutting transmission shaft (10). Toward the inside of the cutting width of the cutting device (7) So as to transmit the star wheel (36) and lug belt (37) of the cereal scraping device (5) on one side via a transmission shaft (38) in the raising support frame (27) refracting in the middle of the direction. A lift cylinder (24) for raising and lowering the cutting frame (2), an auger cylinder (54) for raising and lowering a grain auger (15) of a grain tank (14) mounted on the vehicle body (1), In constructing a hydraulic circuit that feeds oil to the pair of left and right steering push cylinders (55) that operates to disengage the steering clutch of the traveling device (11) provided in (1), pressure oil from the hydraulic pump (P) is supplied. The diversion valve (56) causes a diversion to be made between the steering circuit (57) having the steering push cylinder (55) and the working circuit (58) having the lift cylinder (24) and the auger cylinder (54). At the same time, the working circuit (58) is joined to the steering circuit (57) via the check valve (59) for preventing backflow, and the vehicle speed or the rotation of the hydraulic pump (P) is rotated during traveling by the automatic steering control. Konbai down you characterized by being configured so as to obtain the response of the steering push cylinder (55) corresponding to the number.

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