JP3828477B2 - Combine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combine for supporting a traveling crawler on both the left and right sides of the machine body so that the supporting height can be adjusted.
[0002]
[Prior art]
Conventionally, a threshing unit and a grain tank are installed on the top of the machine base, and the grains in the grain tank are carried out of the machine by the discharge auger, and the left and right track frames can be moved up and down via the left and right rolling cylinders under the machine base. There is a technique for automatically controlling a rolling cylinder based on a detection result of an inclination sensor for installing a left and right traveling crawler on left and right track frames and detecting a right and left inclination of a machine base. (For example, refer to Patent Document 1) Further, as shown in Japanese Patent Application Laid-Open No. 4-131009, when the discharge auger leaves the main unit storage section, the automatic control of the rolling cylinder is stopped and the discharge auger collides. There is also a technology that can eliminate problems such as failure or forgetting to turn on / off the automatic switch. (For example, see Patent Document 2)
[0003]
[Patent Document 1]
Japanese Patent No. 3283230 [Patent Document 2]
Japanese Patent Laid-Open No. 4-131009
[Problems to be solved by the invention]
However, when the automatic switch for automatically controlling the rolling cylinder is turned off, the prior art (Patent Document 1) causes the left and right traveling crawlers to be parallel to the machine base and perform stable road traveling. Therefore, for example, during the harvesting operation, the grain tank is filled with grains, and when the grain is moved to the shore and carried to the truck bed, the rolling cylinder is automatically controlled. For example, when the automatic control of the rolling cylinder is performed when the discharge auger is extended to the upper surface side of the truck bed or container, there is a problem that the discharge auger collides with the upper opening edge of the truck bed or container. In addition, it is possible to eliminate the problem by turning off the automatic switch, but forgetting to turn on or turn off the automatic switch, etc. Erroneous operation there is a handling operation on issues such as where there is easy problem to Okoshisei a.
[0005]
Furthermore, the prior art (Patent Document 2) moves to the next harvesting place when the discharge auger is moved out of the machine while moving to the place where the grain is carried out, or before the discharge auger is stored in the machine. When the machine is tilted to the left and right, causing it to run unstable. After moving to the grain unloading location, move the discharge auger to the outside of the machine, or store the discharge auger in the machine for the next harvest. There is a problem in handling operation, such as it is necessary to move to a place and work efficiency cannot be improved easily.
[0006]
[Means for Solving the Problems]
Therefore, in the present invention, the threshing unit and the grain tank are installed on the upper surface of the machine base, and the grains in the grain tank are carried out of the machine by the discharge auger, and the left and right trucks are disposed below the machine base via the left and right vehicle height cylinders. provided frame vertically movably, is So設right and left traveling crawlers on the left and right track frames, the right and left vehicle heights cylinder based on the detection result of the inclination sensor for detecting the machine base of lateral inclination in combine automatically controls, the right and left vehicle height cylinder When the threshing switch that is turned on by the driving operation of the threshing part is turned off while the automatic switch that performs automatic control of the threshing part is turned off, the left and right traveling crawlers are not set in a parallel state, and the grain tank installation side The left and right vehicle height cylinders are operated so that the vehicle height is higher than the vehicle height on the opposite side and the center of gravity of the aircraft is close to the middle of the left and right traveling crawlers. There is provided a combine for causing automatically performed a standby operation to lower the left and right vehicle height Te.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is an overall side view of a combine, FIG. 2 is a plan view thereof, FIG. 3 is a side view of a track frame portion, and FIG. 4 is a plan view thereof. Left and right track frames, 5 is a machine base installed on the track frames 1 and 2, 6 is a threshing section in which a feed chain 7 is stretched on the left side and a handling cylinder 8 and a processing cylinder 9 are built in, 10 is a cutting blade 11 A reaping portion provided with the cereal conveying mechanism 12, a hydraulic reaping / lowering cylinder 13 for raising and lowering the reaping portion 10 about the fulcrum fulcrum shaft 15 via the reaping frame 14, and a reaping cutter 16 for facing the terminal end of the culvert chain 17. , 18 is a grain tank that carries the grain from the threshing unit 6 through the whipping cylinder 19, 20 is a discharge oven that carries the grain of the tank 18 out of the machine, and 21 is a driving operation unit such as a steering handle. Driving key with 22 and driver's seat 23 Bottles, 24 is an engine provided with the operating cabin 21 downward and configured to threshing continuously harvests culms.
[0011]
Further, as shown in FIGS. 3 to 5, a pair of left and right machine frames 25 and 26 are fixed to the lower surface of the machine base 5 having a square frame shape in plan view, and extended in the front-rear direction. A pair of front and rear horizontal frames 27 are fixed to each other, and a pair of left and right bearing bodies 28 are fixed to the lower surfaces of both end portions of the horizontal frame 27 formed longer than the left and right widths of the left and right machine frames 25 and 26, and a pair of front and rear fulcrum shafts The both ends of 29 and 30 are fixed to the bearing body 28, and a pair of left and right identically shaped front and rear L-shaped swing arms 31 and 32 are rotatably supported on both ends of the fulcrum shafts 29 and 30 so that the track One rear end side of the swing arms 31 and 32 is rotatably connected to a shaft 33 fixed to the frames 1 and 2, and the other upper end side of the front and rear swing arms 31 and 32 is connected to both ends of a connecting member 34 that extends in the front-rear direction. The middle of the connecting member 34 is connected to the machine base 5 by a hydraulic vehicle height cylinder 35, and the left and right track frames 1, 2 can be raised and lowered separately from the machine base 5 via a pair of left and right swing arms 31, 32. Install to. Further, the base plate 36 is fixed to the upper surface of the fulcrum shafts 29 and 30 and connected to the lower surface of the horizontal frame 27.
[0012]
Further, a drive sprocket 39 attached to the transmission case 37 on the front side of the machine base 5 via a shaft left and right case 38, a plurality of track rollers 40, an equalizer roller 41, and a tension roller 42 attached to the outer side surfaces of the track frames 1 and 2. And a carrier roller 43 attached to the machine frames 25 and 26, and a crawler disengagement prevention body 44 attached to the track frames 1 and 2 to prevent the traveling crawlers 3 and 4 from coming off the track rollers 40. 2, the traveling crawlers 3, 4 are stretched, and the height of the ground contact surface of the traveling crawlers 3, 4 with respect to the machine base 5 is changed by raising and lowering the track frames 1, 2 by the vehicle height cylinder 35. Rolling control is performed by adjusting the vehicle height, which is the height.
[0013]
Further, a cylinder receiving plate 47 is fixed to the rear end of the expansion / contraction adjusting rod 46 with the turnbuckle 45 to constitute the connecting member 34. The rod 46 and the cylinder receiving plate 47 are connected to the upper ends of the front and rear swing arms 31 and 32 with shafts 48. 49, and a vehicle height cylinder 35 is attached to a bracket 51 fixed to the rear surface of the horizontal frame 50 of the machine base 5 via a shaft, and a tip of a piston 53 of the vehicle height cylinder 35 is connected to a cylinder receiving plate 47. Connected through.
[0014]
Further, the bearing base 55 is fixed to both ends of the front horizontal frame 27, the shaft case 38 is fixed to the bearing base 55, the sprocket 39 is provided, and the tension support shaft 56 is fixed to the rear part of the track frames 1 and 2, A tension roller 42 is provided on the support shaft 56 via a tension adjusting bolt 57 and a telescopic shaft body 58, and the front and rear swing arms 31 and 32 are swung around the fulcrum shafts 29 and 30 by the vehicle height cylinder 35. 41 and 42 and the track frames 1 and 2 are integrally moved up and down, and the grounding side of the traveling crawlers 3 and 4 is raised and lowered while maintaining the ground contact width of the traveling crawlers 3 and 4 substantially constant. The left and right traveling crawlers are individually operated by automatically controlling the left and right vehicle height cylinders 35 and 35 by the automatic control based on the detection result of the tilt sensor 59 that detects the tilting of the table 5 to the left and right. · 4 by changing the ground height is adapted to substantially horizontally support the machine frame 5.
[0015]
Further, a cerealing cylinder 19 is erected outside the rear part of the grain tank 18 and the upper left part of the tank 18 is projected above the threshing part 6 arranged adjacent to the left side. The lower end is connected to the No. 1 conveyor 60, and the grain threshed by the threshing unit 6 is charged into the tank 18 from the inlet at the top of the cerealing cylinder 19 at the rear of the grain tank 18 and stored, and at the bottom of the grain tank 18 A vertical auger 62 is interposed between the horizontal auger 61 and the upper discharge auger 20, and the grains in the grain tank 18 are taken out through the vertical auger 62 and the discharge auger 20. Further, tank sensors 66 comprising upper, middle, and lower switches 63, 64, and 65 are provided at the upper, middle, and lower positions in the grain tank 18 , and the inside of the tank 18 is turned on when the switches 44, 45, and 46 are turned on. It is comprised so that the presence or absence of a grain may be detected.
[0016]
Further, as shown in FIGS. 1 and 7, a vertical auger 62 is erected on the rear side of the grain tank 18, and the base end of the discharge auger 20 is connected to the upper end of the vertical auger 62 via a transfer case 67. An intermediate portion of the discharge auger 20 is supported on the auger rest 68 on the upper side of the tank 18 and the discharge auger 20 is accommodated substantially horizontally in a diagonal direction on the upper surface of the machine as shown in FIG. At the discharge position or auger rest 68 position, there is provided an electric swing motor 69 for swinging the distal end side of the discharge auger 20 with the vertical auger 62 as a fulcrum, an electromagnetic solenoid-type swing brake 70, a potentiometer-type swing sensor 71 and a transfer case 67 as a fulcrum. Are provided with a hydraulic auger lifting cylinder 72 for raising and lowering the distal end side of the discharge auger 20 and a potentiometer type lifting sensor 73. With elevating the discharge auger 20 leading end side by the elevating cylinder 72 control, and configured to swirl discharge auger 20 leading end side in the left and right by the swing motor 69 control.
[0017]
Further, as shown in FIG. 8, the left vehicle height cylinder 35 is hydraulically connected to a hydraulic pump 77 through an electromagnetic left valve 76 having a left raising solenoid 74 and a left lowering solenoid 75, and a right raising solenoid 78 and a right lowering solenoid The right vehicle height cylinder 35 is hydraulically connected to a hydraulic pump 77 via an electromagnetic right valve 80 having a solenoid 79, and the auger lifting cylinder 72 is hydraulically pumped via an electromagnetic lifting valve 83 having a rising solenoid 81 and a lowering solenoid 82. 77 is hydraulically connected, and the cylinders 35 and 72 are operated.
[0018]
Further, as shown in FIG. 9, a threshing switch 84 that is turned on by a driving operation of the threshing unit 6, an automatic switch 85 that performs automatic control of the vehicle height cylinder 35 based on the detection result of the inclination sensor 59, and a machine base Left and right vehicle height sensors 86 and 87 for detecting the ground contact side height of the left and right traveling crawlers 3 and 4, a vehicle height switch 88 for moving the left and right vehicle height cylinders 35 up and down by manual operation, and the left and right vehicle height cylinders 35 are operated. Then, the tilt dial 89 for manually adjusting the left / right tilt of the machine base 5, the tilt sensor 59, and the solenoids 74, 75, 78, and 79 are electrically connected to the tilt controller 90.
[0019]
Further, a cutting switch 91 that is turned on by a driving operation of the cutting unit 10, a lifting switch 92 that moves the discharge auger 20 up and down, a turning switch 93 that turns the discharging auger 20, the turning sensor 71, and the lifting and lowering The sensor 73, the turning motor 69, and the solenoids 81 and 82 are electrically connected to the work controller 94, and the inclination controller 90 and the work controller 94 are communicatively connected.
[0020]
Then, as shown in the flowchart of FIG. 10, when the automatic switch 85 and the threshing switch 84 are on, the left and right inclinations of the machine base 5 are inputted from the inclination sensor 59, and the discharge auger 20 is not raised or turned. When the discharge auger 20 is housed in the auger rest 68, the vehicle height cylinder 35 is controlled so as to determine whether it is tilted to the left or to the right based on the input of the tilt sensor 59, and when the machine base 5 is tilted to the left. On the other hand, when the machine base 5 is tilted to the right, the vehicle height cylinder 35 is controlled so as to be lowered to the left or raised to the right, so that the machine base 5 is substantially horizontal. In addition, the vehicle height cylinder 35 is manually operated by operating the vehicle height switch 88 to change the vehicle height, while the vehicle height cylinder 35 is manually operated by operating the tilt dial 89 to tilt the machine base 5. Let it be done.
[0021]
Further, when the threshing switch 84 is turned off, or when the discharge auger 20 is moved up or turned to move from the storage position of the auger rest 68, the switches 63 to 65 are input from the tank sensor 66, and the left and right vehicle heights are adjusted. Control is performed to calculate the amount of lowering and to change the vehicle height cylinder 35 to a standby vehicle height BD described later. As shown in FIGS. 11 and 12, when the grains are collected in the grain tank 18 by the harvesting operation, the center of gravity of the body moves to the tank 18 installation side by the grain weight of the tank 18, so that the grounding of the left and right traveling crawlers 3 and 4 is grounded. When the pressure is different and the road surface hardness is substantially equal on the left and right, the vehicle height, which is the distance between the ground contact surface of the traveling crawlers 3 and 4 and the machine base 5, differs on the left and right, and the right vehicle height (for example, the control range) 90%) is higher than the left vehicle height on the threshing section 6 side (for example, 70% of the control range). Therefore, the left vehicle height cylinder 35 is controlled to descend to a standby vehicle height B that is 10% of the vehicle height control stroke so that the truck frames 1 and 2 and the like are positioned higher than the lower limit at which the truck frames 1 and 2 easily enter the mud.
[0022]
At the same time as the left vehicle height cylinder 35 is lowered to the standby vehicle height B, the right vehicle height is set so that the right vehicle height C on the tank 18 side becomes the standby vehicle height D of 20% of the vehicle height control stroke. By controlling the lowering of the cylinder 35, as shown by the solid line, the standby vehicle heights B and D of the left and right traveling crawlers 3 and 4 are made different at positions higher than the lower limit. When the lowering control is performed to the standby vehicle height B of 10%, the right vehicle height cylinder 35 is set to 20% of the vehicle height control stroke so that the center of gravity of the fuselage approaches the middle between the left and right vehicles of the left and right traveling crawlers 3 and 4 substantially simultaneously. By performing the descending control to the standby vehicle height D, the standby vehicle height D on the right side becomes higher than the standby vehicle height B on the left side, and the ground contact pressure of the left and right traveling crawlers 3 and 4 can be made substantially equal. harvest Can be moved in a stable aircraft attitude to grain carry-out location when ridge from where. Further, by determining the standby vehicle height E of the right vehicle height cylinder 35 based on the grain amount detected by each of the switches 63 to 65 of the tank sensor 66, not only the forward path from the harvesting place to the grain unloading place. Even on the return path from emptying the grain tank 18 to returning to the next harvesting place, the grain tank 18 can be moved in a stable body posture.
[0023]
As is clear from the above, the threshing unit 6 and the grain tank 18 are installed on the upper surface of the machine base 5, and the grains in the grain tank 18 are carried out of the machine by the discharge auger 20, and the left and right rolling is performed on the lower side of the machine base 5. The left and right track frames 1 and 2 can be moved up and down through vehicle height cylinders 35 and 35, and the left and right track crawlers 3 and 4 are installed on the left and right track frames 1 and 2 to detect left and right inclination of the machine base 5. In the combine that automatically controls the left and right vehicle height cylinders 35 and 35 based on the detection result of the tilt sensor 59, the threshing unit 6 is in a state where the automatic switch 85 that automatically controls the left and right vehicle height cylinders 35 and 35 is on. When the threshing switch 84, which is turned on by the driving operation of, is turned off, the left and right traveling crawlers 3, 4 are not placed in a parallel state, and the grain tank 18 is installed on the side. The left and right vehicle height cylinders 35 and 35 are actuated to lower the left and right vehicle heights so that the height is higher than the vehicle height on the opposite side and the center of gravity of the aircraft approaches the middle of the left and right crawlers 3 and 4. The standby operation is automatically performed . Even if automatic control of the vehicle height cylinder 35 is interrupted, the center of gravity of the airframe is prevented from being shifted to the left and right. For example, the travel auger 20 can be moved out of the machine while running, or the exhaust auger 20 can be stored in the machine. To improve work efficiency and simplify handling operations.
[0024]
Further, when the automatic control of the rolling cylinder 35 based on the detection result of the tilt sensor 59 is interrupted, the vehicle height on the grain tank 18 installation side is opposite to the vehicle on the opposite side so that the left and right traveling crawlers 3 and 4 are not in a parallel state. By automatically performing a standby operation to lower the left and right vehicle heights so as to be higher than the height, and making the vehicle height on the grain tank 18 side higher than the opposite side at the end of the work, the grains in the grain tank 18 Even if the weight is large, the center of gravity of the fuselage is moved to the opposite side of the grain tank 18, for example, moved from the harvesting place to the grain unloading place at the end of the work. The rolling cylinder 35 is automatically operated for standby when the threshing clutch is turned off to stop the threshing unit 6, and the standby operation of the rolling cylinder 35 is automatically performed by stopping the threshing unit 6. Because to perform in, eliminating the problem that the operation error or the like of the operator occurs, to improve, such as handling operability.
[0025]
Further, when the automatic control of the vehicle height cylinder 35 based on the detection result of the inclination sensor 59 is switched from on to off, the height of the ground traveling side of the left and right traveling crawlers 3 and 4 with respect to the machine base 5 depending on the grain amount of the grain tank 18. The left and right vehicle height cylinders 35 are automatically actuated by this determination, and the center of gravity of the fuselage is changed by the weight change of the grain tank 18 regardless of whether the grain tank 18 is full or empty. It eliminates the problem of leaning toward the vehicle and makes it run with a stable attitude.
[0026]
【The invention's effect】
In the present invention, the threshing unit 6 and the grain tank 18 are installed on the upper surface of the machine base 5, and the grains in the grain tank 18 are carried out of the machine by the discharge auger 20, and the left and right vehicle height cylinders 35 are disposed below the machine base 5. The detection result of the inclination sensor 59 for detecting the horizontal inclination of the machine base 5 by providing the left and right track frames 1 and 2 to be movable up and down via 35 and mounting the left and right traveling crawlers 3 and 4 on the left and right track frames 1 and 2. in combined for automatically controlling the lateral vehicle height cylinder 35, 35 based on the automatic switch 85 to perform the automatic control of the left and right vehicle height cylinder 35, 35 is in a state of oN, turned on by the driving operation of the threshing section 6 When the threshing switch 84 is turned off, the left and right traveling crawlers 3, 4 are not placed in a parallel state, and the vehicle height on the grain tank 18 installation side is higher than the vehicle height on the opposite side. And, as the aircraft center of gravity to a substantially intermediate of the right and left travel crawlers 3-4 approaches, and so as to automatically perform a standby operation for reducing the left and right vehicle height by operating the right and left vehicle heights cylinder 35, 35.
Accordingly, by raising the vehicle height on the grain tank 18 side from the opposite side at the end of the work, even if the grain weight in the grain tank 18 is large, the center of gravity of the machine body is moved to the side opposite to the grain tank 18. The left and right vehicle height cylinders 35 can be obtained when the threshing clutch is turned off while the threshing portion 6 is stopped while obtaining stable running performance when traveling after the completion of work, for example, moving from the harvesting place to the grain unloading place on the shore.・ Since 35 is automatically operated for standby and the threshing unit 6 is stopped so that the left and right vehicle height cylinders 35 and 35 are automatically operated for standby, handling problems such as operator error are eliminated, and handling operations are performed. Etc. can be improved .
[Brief description of the drawings]
FIG. 1 is a side view of a combine.
FIG. 2 is a plan view of the same.
FIG. 3 is a side view of a track frame portion.
FIG. 4 is a plan view of the same.
FIG. 5 is a rear view of the same.
FIG. 6 is a front explanatory view of the aircraft.
FIG. 7 is an enlarged view of a discharge auger portion.
FIG. 8 is a hydraulic circuit diagram.
FIG. 9 is a control circuit diagram.
FIG. 10 is a flowchart.
FIG. 11 is an explanatory diagram of a control operation.
FIG. 12 is an explanatory diagram of a control operation.
[Explanation of symbols]
1.2 Track frame 3.4 Travel crawler 5 Machine base 6 Threshing section 18 Grain tank 20 Discharge auger 35 Height cylinder (rolling cylinder)
59 Inclination sensor 85 Automatic switch

Claims (1)

A threshing section and a grain tank are installed on the top of the machine base, and the grains in the grain tank are carried out of the machine by the discharge auger, and the left and right truck frames are installed on the lower side of the machine base via the left and right vehicle height cylinders. In the combine that automatically controls the left and right vehicle height cylinders based on the detection result of the inclination sensor that installs the left and right traveling crawlers on the left and right track frames and detects the left and right inclination of the machine base ,
When the threshing switch that is turned on by the driving operation of the threshing part is turned off while the automatic switch that performs the automatic control of the left and right vehicle height cylinders is turned on , the left and right traveling crawlers are not in a parallel state, and The left and right vehicle height cylinders are operated to increase the left and right vehicle heights so that the vehicle height on the grain tank installation side is higher than the vehicle height on the opposite side, and so that the center of gravity of the aircraft approaches the middle of the left and right traveling crawlers. A combine that features automatic lowering operation .

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