JP2020068691A - Combine-harvester - Google Patents

Abstract

To provide a combine-harvester 1 that in making a discharge auger 30 be vertically lifted/lowered and clockwisely/counterclockwisely turned through an actuator 43 to move the discharge auger to a grain discharge position and the like, is capable of appropriately performing fine adjustment of the discharge auger to the grain discharge position via simple operation while constantly moving the discharge auger at high moving speed without changing the speed.SOLUTION: In performing fine adjustment of a discharge auger 30 at a grain discharge position, a control unit ECU makes the discharge auger be vertically lifted/lowered and clockwisely/counterclockwisely turned by an approximately constant amount by actuating a vertically lifting/lowering or clockwisely/counterclockwisely turning actuator 43 singly and during a predetermined short time T1 even if operation periods of vertically lifting/lowering or clockwisely/counterclockwisely turning switches 68, 69 vary slightly.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a combine performing a threshing and threshing operation, and more specifically, a grain tank for storing grains cut and subjected to threshing selection processing, a discharge auger for discharging grains stored in the grain tank to the outside of the machine, and a discharge auger. The present invention relates to a combine that includes a control device that vertically moves up and down and horizontally rotates via an actuator to move a grain storage position to a grain discharge position, fine adjustment at the grain discharge position, or move the grain discharge position to a storage position.

  Generally, a normal type or a self-removing combine combine is provided with a mowing section for cutting grain culms, a threshing section for threshing cut grain culms, a grain tank for storing the threshed grains, etc. Is driven by the power of an engine mounted on the machine body, and for example, a harvesting operation is performed while traveling by a crawler traveling device. When the harvested grains are full in the Glen tank, the discharge auger is driven to discharge the grains from the Glen tank to a container or the like installed on the truck bed.

  In addition, the discharge auger that discharges the grains stored in the grain tank to the container outside the machine in this way does not perform the grain discharge work.For example, during cutting work, the tip side of the auger rest is provided on the upper part of the machine body. It is stored while being supported in a recumbent state. Then, when performing grain discharge work, raise the tip side from the agarest to the highest position and turn toward the container to be installed on the truck bed next, for example, right behind the aircraft or facing the right side of the aircraft. Let

  Furthermore, when approaching the container, the grain discharge position of the discharge auger is moved up and down or turned left and right so that it faces the upper part of the container, and the grain discharge position is finely adjusted so that the discharged grain does not spill out of the container. After that, the discharge auger is driven to perform the work of discharging the grain. For this reason, the discharge auger is provided with an actuator composed of an electric motor or a hydraulic cylinder for vertically moving up and down and turning horizontally, and the actuator is operated to move the discharge auger from the storage position in the machine to the grain discharge position and the grain discharge position. A control device for fine adjustment or moving from the grain discharge position to the storage position is provided.

  Then, the control device for vertically moving the discharge auger up and down and rotating it left and right automatically moves the discharge auger from the storage position to the grain discharge position or from the grain discharge position to the storage position by operating the push button of the swing switch. It is equipped with control and manual control for vertically moving the discharge auger up and down or turning left and right by manually operating the up switch, the lower switch, the right turn switch, and the left turn switch. Fine adjustment at the grain discharge position is performed by manual control using a vertical up / down or left / right turning switch.

  By the way, when examining the moving speed of the discharge auger when moving up and down and turning left and right, for example, when moving the discharge auger from the storage position to the grain discharge position or from the grain discharge position to the storage position in the aircraft, the movement of the discharge auger is performed. It is desirable to move at high speed to reduce the time. However, when performing fine adjustment at the grain discharge position, if the moving speed of the discharge auger is high, it is difficult to adjust the vertical up / down movement or the manual operation of the left / right swivel switch, and the fine adjustment of the discharge auger to the proper grain discharge position is required. There is a problem that adjustment is not performed well and it takes time.

  Therefore, the elapsed time after the instruction to drive the lifting or turning is instructed by the manually operated operation means, and the moving speed of the lifting or turning of the discharge auger becomes slower at the start of the moving than at the time of the subsequent moving. To automatically adjust the operating speed of the actuator (by PWM modulation), or the control means actuates the actuator once for a predetermined time shorter than the set time until the elapsed time exceeds the set time. It is known that the actuator is continuously operated after the set time has elapsed (see Patent Document 1).

  Also, in the case where a manual command means provided on the tip side of the auger is operated to issue a swing command to move the discharge port of the auger onto the truck bed, a state in which the switching of the swing speed is instructed Then, the swing actuator is swung at a speed higher than the normal swing speed, and conversely, when the swing speed switching is not instructed, the swing actuator is driven at the normal swing speed (driven by a pulse waveform of a predetermined frequency). It is known that the device is configured so as to be swiveled by (see Patent Document 2).

JP-A-2-31612 JP 2000-270671 A

  As described above, in the combine harvester, when the work of discharging the grains stored in the grain tank to the container outside the machine is performed, the combine harvester is first moved to the vicinity of the field where the truck is stopped. Then, after moving the discharge auger from the storage position in the machine to the grain discharge position, the grain discharge position (discharge port) of the discharge auger is moved up and down or swung left and right to face the container, and the discharge auger is rotated. The grain discharge position is finely adjusted so that the grain discharged from the discharge port provided at the tip of the will not spill from the container, and then the discharge auger is driven to perform the grain discharge work.

  Then, in this case, when the operator presses the turning switch provided in the control section only once, the control device operates the vertical ascending / descending and left / right turning actuators to move the discharge auger from the storage position in the machine to directly behind the machine. Automatically move to the grain discharge position. Next, the operator operates the lowering switch of the discharging auger stopped at the highest position by the above-mentioned automatic control to lower the discharging port at the tip side to a position slightly higher than the container, and the right turning switch. Alternatively, the left turning switch is operated to perform fine adjustment so that the discharge port on the tip side faces the center of the container.

  When discharging grains into a wide range of containers, etc., in order to increase the load on the container by stopping the driving of the discharge auger and changing the position of the pile of grains that rises and accumulates in the container. By operating the right turning switch or the left turning switch, the grain discharge position is finely adjusted in the left-right direction so that the grains are uniformly accumulated in the container. Alternatively, in order to avoid interference with the piles of grains that rise up in the container and pile up, fine adjustment is performed by operating the raising switch so that the grain discharging position is upward.

  In such a grain discharging operation, if the discharging auger is moved at a high speed, the movement time at the time of moving from the storage position in the machine to the grain discharging position or from the grain discharging position to the storing position is shortened and the work efficiency is improved. Can be improved. However, if the discharge auger is moved at high speed when performing fine adjustment at the grain discharge position, it is difficult to adjust the vertical up / down or left / right swivel switch manually, and fine adjustment of the discharge auger to a proper grain discharge position is successful. I can't do it.

  Therefore, as described in Patent Document 1, the elapsed time after an instruction to drive up and down or turning is instructed by a manually operated operation unit, and the moving speed of up and down or turning of the discharge auger is at the start of movement. In the above, the speed change switch is configured to automatically adjust the operating speed of the actuator so as to be a speed slower than the subsequent movement, or as described in Patent Document 2, a speed change switch for instructing the change of the turning speed of the discharge auger. With the above, it is considered that the moving speed of the discharge auger is slowed down when the fine adjustment at the grain discharge position is performed, and the fine adjustment of the discharge auger to the proper grain discharge position can be performed well.

  However, in each of Patent Document 1 and Patent Document 2, fine adjustment to the grain discharge position is performed by slowing down the moving speed of the discharge auger, and therefore, the raising / lowering or turning drive is performed by the operating means. The position at which the discharge auger is stopped differs depending on the timing at which the drive means is released after the operation is instructed, and the movement distance of the tip of the discharge auger always changes. Therefore, the discharge auger may not reach the target moving position or may overshoot due to the delay in the timing of canceling the driving instruction by the operating means.

  Further, when the moving speed of the discharge auger is gradually increased as the elapsed time is increased as in Patent Document 1, it becomes more difficult to set the stop timing of the discharge auger, and in Patent Document 2, the rotation speed of the discharge auger is increased. Since the switching has to be performed, there is a problem that the operation is troublesome and the expected effect cannot be sufficiently obtained.

  Therefore, in view of the above problems, the present invention changes the moving speed of the discharge auger itself when moving the discharge auger up and down as well as left and right via an actuator to move to a grain discharge position or the like. An object of the present invention is to provide a combine capable of appropriately performing fine adjustment to the grain discharge position of the discharge auger by a simple operation while always moving at a high speed without performing the operation.

  In order to solve the above problems, the present invention is firstly directed to a Glen tank for storing grains that have been cut and threshed and sorted, a discharge auger for discharging grains stored in the Glen tank to the outside of the machine, and an actuator for the discharge auger. In a combine with a control device for vertically moving up and down and turning left and right through a grain, a grain discharge position from the storage position in the machine body, fine adjustment at the grain discharge position, or moving from the grain discharge position to the storage position. When performing fine adjustment at the grain discharge position of the discharge auger, the vertical lift or horizontal swing actuator can be sporadically operated for a predetermined short time regardless of the length of the operation time of the vertical lift or horizontal swing switch. It is characterized in that the discharge auger is vertically moved up and down or left and right by a substantially constant amount.

  Further, according to the present invention, secondly, the control device newly activates the vertical ascending / descending / descending / descending / descending operation while a predetermined interval is set after operating the up / down ascending / descending or left / right swiveling actuator by itself for a predetermined short time. It is characterized in that it does not move up and down or the left and right turning actuator does not perform a single operation (inching) in response to the operation of the left and right turning switch.

  Furthermore, in the third aspect of the present invention, the control device separately sets a predetermined time for actuating the vertical ascending / descending or left / right swiveling actuator in a one-shot manner, ascending or descending, or clockwise or counterclockwise, and discharging. It is characterized in that the auger is vertically moved up and down or horizontally rotated by a substantially constant amount regardless of the ascending or descending direction or the turning direction.

  And, fourthly, according to the present invention, when the up / down movement or the left / right turning switch is operated for a long time beyond a predetermined interval, the control device moves up / down until the vertical movement or the left / right turning switch is no longer operated. Alternatively, the left and right turning actuator is operated continuously.

  According to the combine of the present invention, the grain tank for storing the grain that has been cut and threshed and sorted, the discharge auger for discharging the grain stored in the grain tank to the outside of the machine, and the discharge auger are moved up and down through the actuator. In a combine with a control device for turning left and right, from the storage position in the machine to the grain discharge position, fine adjustment in the grain discharge position, or moving from the grain discharge position to the storage position, the control device is a grain of the discharge auger. When performing fine adjustment at the grain discharge position, regardless of the length of time for operating the vertical up / down or left / right swivel switch, the vertical / vertical swivel or left / right swivel actuator is activated for a predetermined short time to eject the grain. Raise the auger up and down or turn left and right by approximately a fixed amount.

  Therefore, when the discharge auger is moved up and down and left and right via the actuator to move to the grain discharge position, etc., the movement speed of the discharge auger, without changing itself, is always moved at high speed to improve work efficiency. Although it can be done, fine adjustment of the discharge auger to the grain discharge position can be done by a single operation of the vertical up / down or left / right swing actuator by a simple operation of vertically moving up / down or pressing the left / right swing switch for a short time. Therefore, the discharge auger can be vertically moved up and down or rotated right and left by a substantially constant amount without excess or deficiency by operating (one-shot output) for a predetermined short time.

  Therefore, although the discharge auger moves at high speed when performing fine adjustment at the grain discharge position, the amount of movement of the discharge auger per one operation of the vertical up / down or left / right swivel switch can be suppressed to a small amount. The discharge auger does not reach the target moving position or goes too far due to the slow speed of the instruction to stop the operation of the left and right turning actuator, and it is necessary to operate the up and down lift or the left and right turning switch in consideration of this stop timing. There is no need to worry.

  In addition, when the adjustment of the discharge auger to the proper grain discharge position is not completed by one operation of the up / down movement or the left / right swivel switch, the switch operation is repeated again to adjust to the proper grain discharge position. be able to. Further, even if the switch is operated for a relatively long time after the vertical ascending / descending or left / right swiveling actuator stops its operation, the discharge auger is vertically ascended / descended or horizontally swung by a substantially constant amount regardless of the length of the operation time. Therefore, it is not necessary to consider the manual operation of the switch, and the fine adjustment at the grain discharging position can be easily performed.

  In addition, the control device actuates the vertical up / down or left / right swivel actuator by itself for a predetermined short time and then, while a predetermined interval is set, a new vertical up / down or left / right swivel switch operation. If you do not perform a single operation (inching) of the up / down or left / right swing actuator, you can prevent the vertical up / down or left / right swing actuator from continuously operating due to multiple operations of the up / down up / down or left / right swing switch, It is possible to stably perform a single operation of the vertically moving up / down or left / right turning actuator. Moreover, it is possible to prevent the vertical and vertical or left and right swing actuators from rising and lowering or turning right and left to prevent the operating directions from being instantaneously reversed and adversely affecting the life of the actuator.

  Further, the control device separately sets a predetermined time for actuating the up / down ascending / descending or left / right swivel actuator in one shot, ascending / descending, right turning or left turning, and setting the discharge auger in the ascending / descending direction or turning direction. Regardless of whether the vertical movement is made up / down or left / right rotation by a substantially constant amount, the actuator feels stable because it eliminates the discomfort of the operation feeling due to the difference in the amount of movement of the discharge auger during up / down or right / left rotation. It is possible to improve the above operation and the operability of the up / down movement or the left / right turning switch.

  When the vertical up / down or left / right swivel switch is operated for longer than a predetermined interval, the control device continuously operates the vertical up / down / left / right swivel actuator until the vertical up / down or left / right swivel switch is no longer operated. When activated, the same switch can be used to perform fine adjustment operation at the grain discharge position of the discharge auger and quick movement operation from the storage position to the grain discharge position or from the grain discharge position to the storage position in the aircraft. It can be performed only by changing the operation mode, and the grain discharging device of the Glen tank can be constructed at low cost.

It is a front view of a combine. It is a top view of a combine. It is a right view of a combine. It is a perspective view of a discharge auger. It is a perspective view showing an auger rest and an auger operation panel. It is a control circuit diagram of a discharge auger control device. It is a flow chart of discharge auger automatic control. It is a timing chart which shows the output state to an auger turning motor. It is an explanatory view of the operation of the discharge auger.

  An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1 to FIG. 3, a self-removing combine 1 of three-row cutting, which threshes rice and wheat while threshing, has a left and right side below a body frame (body) 2 framed in a substantially rectangular shape via a traveling frame 3. The crawler traveling device is installed. The left and right crawler traveling devices include a drive sprocket 4 attached to a drive shaft protruding from the left and right of the transmission case, an idle wheel 5 and a track roller 6 pivotally supported on the traveling frame 3, and a rubber crawler 7 wound around these. Prepare

  A substantially rectangular operation frame 8 is integrally connected to the right front part of the machine frame 2 in the forward direction of the machine body, and a control section 9 is provided between the operation frame 8 and the machine frame 2 behind the operation frame 8. The control unit 9 has a driver's seat 11 behind the floor 10, a front console (front operation panel) 12 at the front of the floor 10, and a side console (not shown) on the left side of the floor 10 and the driver's seat 11. A side operation panel) 13 is provided.

  Further, a cutting section 14 is provided so as to be able to move up and down by a hydraulic cylinder (not shown) from the left front portion of the machine body frame 2 to the front of the control section 9. Then, the cutting unit 14 divides the napped culms in the field into a cut culm and an uncut culm by the grass bodies 15 and the narrow guides 16 provided in the lower part of the front end thereof, and enters between the left and right grass bodies 15. The cutting culm is raised by the raising device 17 having the raising claws, and then the gathering device of the reeding method is used to collect the plantlets of the grain culm while gathering them together by the pulling device configured by the projection belt 18 and the star wheel 19. Disconnect by.

  Further, the grain culms cut and mowed by the cutting blade device 20 are sent rearward by the star wheel 19 of the scraping device and the stock-source transport chain 21 with protrusions, and the grain culms sent backward are the transport chains with protrusions. And a tip-end conveying device 23 formed of a tip-end conveying chain with a conveying claw. The stock carrier 22 and the tip carrier 23 are integrally configured so that their tip ends can be moved up and down, thereby adjusting the handling depth of the harvested culm.

  Further, the threshing unit 24 is provided on the left side of the machine body frame 2 behind the cutting unit 14, and the first and second handling chambers are provided below the cylinder cover 25 that covers the upper side. Among these, the first handling chamber is provided with a threshing feed chain for transporting the grain culms transported from the reaping unit 14 along the handling mouth, a nipping rail for the threshing feed chain, a first handling cylinder having handling teeth and a net for receiving the same. In addition, the second handling chamber is attached to the first handling chamber so that the second handling chamber faces the rear of the machine from the rear tip side of the first handling drum, and the straw waste mixed with the grains that could not be completely shredded in the first handling chamber. A second handling cylinder and a net for handling the same are provided. On the other hand, a sorting room is provided below the handling room.

  This sorting chamber is provided with an oscillating flow plate that makes an oscillating motion, spirals No. 1 and No. 2, spiral fan and suction fan, etc. The selected grains are transferred from the No. 1 spiral to the Glen tank 27 through the fried device 26 equipped with the fried spiral, and the No. 2 spiral mixed with straw waste etc. is changed from No. 2 spiral to No. 2 reduction spiral. Back onto the rocking flow plate. Further, the straw waste reaching the end of the rocking flow plate, the straw waste captured by the suction fan, or the straw waste discharged from the end of the second handling cylinder is discharged outside the threshing unit 24.

  Further, the culm discharged after the threshing process is discharged from the handling chamber is conveyed toward the disc cutter 28 provided at the rear part of the machine body by the straw conveying device, and further, the disc cutter 28 is the straw conveying device. The culms that have been transported by are shredded and released as straw at the site of the cutting.

  The grain tank 27 is provided further rearward of a driving unit 29 configured by a diesel engine or the like provided at the rear of the control unit 9, and temporarily stores the grain transferred by the grain lifting device 26. Further, when the grain is full in the grain tank 27, the discharge auger 30 is operated so as to discharge the grain from the grain tank 27 and discharge it to a container or the like outside the machine.

  Next, the grain discharging device that discharges the above-mentioned grains from the grain tank 27 to the container outside the machine using the discharge auger 30 will be described in detail. As shown in FIGS. The Glen tank 27 for temporarily storing the above is configured by vertically fitting and joining an upper tank 31 made of synthetic resin and a lower tank 32 made of sheet metal through a bracket. Then, near the upper part of the side surface of the upper tank 31 on the threshing section 24 side, an inlet is provided which faces the discharge port 26a of the fried apparatus 26 of the threshing section 24, and grain is taken into the Glen tank 27 from this inlet. ..

  An inspection port is provided near the front of the upper surface of the upper tank 31, and the inspection port is covered with a lid 31a. Further, the lower tank 32 is provided with a front wall, a rear wall, and left and right inclined bottom walls formed in a V shape, and the lower tank 32 is mounted and mounted on the machine body frame 2. In addition, an auxiliary gutter is provided at the center of the right sloping bottom wall on the outer side of the machine body, and the shutter can be opened from this auxiliary gutter to discharge the grains stored in the grain tank 27 to a rice bag or the like.

  Further, the discharge auger 30 that discharges grains from the grain tank 27 and discharges them to a container outside the machine is composed of a horizontal spiral and a vertical spiral, in which the horizontal spiral has its spiral shaft 33 as the bottom of the Glen tank 27. It is installed horizontally on the inclined bottom wall of the lower tank 32, and the grains in the grain tank 27 are conveyed to the vertical spiral. Further, an inverted V-shaped guide 34 is provided above the spiral shaft 33, and the guide 34 receives the weight of the stored grain and prevents a large grain pressure from being applied to the spiral shaft 33. Further, when the spiral shaft 33 is rotated by the engine power, the guide 34 vibrates and guides the grain to the flow path between the inclined bottom wall and the guide 34 to prevent the grain from being clogged.

  The vertical spiral conveys the grain sent from the horizontal spiral toward the upper side and discharges it to the outside of the machine. The vertical spiral of the three vertical pipes 35, 36, 37 and the gear case 38 in the horizontal direction. The four spiral shafts 39, 40, 41, 42 provided inside each are sequentially rotationally driven from the rear end of the horizontal spiral spiral shaft 33 via a bevel gear. Further, the vertical spiral is configured to be capable of turning left and right and moving up and down by the electric motors 43 and 44, whereby the discharge auger 30 is moved from the storage position in the machine to the grain discharge position, fine adjustment at the grain discharge position, or the grain discharge position. Can be moved from to the storage position.

  That is, the horizontal spiral spiral shaft 33 has its both ends supported by a drive-side gear case 45 attached to the front wall of the lower tank 32 and a driven-side L-shaped connection gear case 46 attached to the body frame 2 facing the rear wall. To do. Further, the lower end of the first vertical pipe 35 is fitted and supported on the tubular portion of the connecting gear case 46 that faces upward, and the outer periphery of the first vertical pipe 35 near the upper end is held by a holder 47 via a bush. A holder 47 is attached to a cutter stay 48 that rotatably attaches a cutter 28 standing upright from the frame 2 and a connecting frame 49 that attaches to the grain elevator 26 to rotatably support the first vertical pipe 35.

  Further, a turning electric motor 43 composed of a geared motor is attached to an upper surface of a motor base 50 standing upright from the machine body frame 2, and a drive spur gear provided on an output shaft of the electric motor 43 and a lower portion of the first vertical pipe 35. The driven spur gear 35a provided on the outer circumference of the first vertical pipe 35 is engaged with the first vertical pipe 35 so that the first vertical pipe 35 can be rotated by a turning electric motor 43 about its vertical axis. Further, a 90-degree elbow-shaped fixed gear case 38a is attached to the upper end of the first vertical pipe 35, and a 90-degree elbow-shaped rotating gear case 38b is rotatably attached to the fixed gear case 38a.

  Further, a second vertical pipe 36 is attached to the outlet side tubular portion of the rotary gear case 38b, and a third vertical pipe 37 is attached to the tip of the second vertical pipe 36 so that the third vertical pipe 37 can freely rotate about its rotation fulcrum. After mounting, the third vertical pipe 37 is rotated 180 degrees, and the third vertical pipe 37 is foldably continuously provided along the second vertical pipe 36. Then, the lifting electric motor 44 composed of a geared motor and the worm gear case 51 are attached to the fixed gear case 38a via the bracket, and the link arm 52 is rotated from the lifting electric motor 44 via the worm gear provided in the worm gear case 51. ..

  In addition, the link arm 52 operates the link 53 connected to the second vertical pipe 36, and is assisted by the two gas dampers 54 that bias the rising side, so that the second vertical pipe 36 and the second vertical pipe 36 are supported. The third vertical pipe 37, which is continuously connected to, is vertically rotated about the horizontal axis of the fixed gear case 38a and the rotating gear case 38b.

  A swing storage plate and a swing position plate are provided on the outer periphery of the first vertical pipe 35 near the lower portion, and these plates actuate the actuators of the swing storage switch 55 and the swing position switch 56. Can be detected by these switches. Further, the worm gear case 51 is provided with an upper limit switch 57 and a lower limit switch 58, and the actuators of these switches are operated by the upper limit pin and the lower limit pin provided on the link arm 52, so that the vertical position of the discharge auger 30 can be detected.

  Further, when the discharge auger 30 is lowered toward the auger rest 59 behind the driver's seat 11 provided on the upper part of the fuselage, the second vertical pipe 36 closes the lowering switch 60 provided on the auger rest 59. The storage state in can be detected. As shown in FIG. 5, the agarest 59 uses a frame 61 that connects the fried device 26 of the threshing unit 24 with the side console 13 and the front console 12 to reinforce each other, and stands in the middle of the frame 61. It is provided above the stay 62 to be installed, and a grain discharge lever 63 and an auger operation panel 64 are provided in the middle of the stay 62 via a bracket.

  The grain discharge lever 63 is operated by turning on and off a belt tension clutch 65 for transmitting power from the engine to the gear case 45 on the drive side of the lower tank 32. When the grain discharge lever 63 is turned on and off, each spiral shaft of the discharge auger 30 is operated. 33 ... are rotatably driven, and finally the grain is discharged to the outside of the machine from a discharge port 37a provided at the tip of the third vertical pipe 37. Further, the auger operation panel 64 is provided with push-button type operation switches for raising (66), lowering (67), turning right (68), turning left (69), and automatic turning (70) relating to the discharge auger 30. ..

  Next, the control device for controlling the discharge auger 30 will be described. The control device is configured by an electronic control unit (ECU) including a micro computer unit as shown in the control circuit diagram of FIG. On the input side of the ECU, pushbutton switches 66, 69, 68, 67 of "up", "left", "right" and "down" as auger manual operation switches, and a "turn" push as auger automatic turning. A button type switch 70 is connected to an auger receiving and storing limit switch (lowering switch) 60, "up" and "lowering" lifting limit switches (upper and lower switches) 57 and 58, a swivel storage switch 55, and a swivel position switch 56. To do.

  Further, on the output side of the ECU, an auger raising / lowering motor relay having a built-in breaker B for switching the output of the auger turning LED 71 and the auger raising / lowering motor 44 drive which are turned on during the automatic auger turning and for stopping the drive at the time of overload to protect the circuit. 72, the output of the drive of the auger swing motor 43 is switched, and an auger swing motor relay 73 having a built-in breaker B for stopping the drive and protecting the circuit when overloaded is connected.

  The control of the discharge auger 30 is provided with an automatic control and a manual control. Among them, the automatic control is performed by changing the auger turning position as shown in the flowchart of the discharge auger automatic control of FIG. 7 and the operation explanatory diagram of the discharge auger of FIG. When the swivel switch 70 is pushed in the stored position, the automatic swivel starts to operate, and after raising the auger 30 to the upper limit (about 45 degrees), the swivel switch 70 is swung left to the automatic discharge stop position facing right behind the aircraft and stopped. ..

  When the swivel switch 70 is pressed while the auger 30 is not stored in the auger rest 59, automatic storage starts to operate, the auger 30 is raised to the upper limit, and then swung right to the auger storage position, and then the auger rest 59 is reached. Down to stop. When the swivel switch 70 or any of the auger manual operation switches 66, 69, 68, 67 is pressed during automatic swiveling or automatic storage, the auger operation is stopped and the automatic control is stopped.

  Further, the operation output to the auger raising / lowering motor 44 and the auger turning motor 43 of the ECU during this automatic control is such that the motor is always continuously rotated while the operation command is issued, and the discharge auger 30 moves up / down or turns at a high speed. In order to reliably store the auger 30 in the auger rest 59, a slight time difference is provided from when the auger receiving and storing limit switch 60 is turned on until the auger 30 is stopped.

  For manual control of the discharge auger 30, the "up" and "down" switches 66 and 67 actuate the auger lift motor 44, and the "right" and "left" switches 68 and 69 actuate the auger swing motor 43. However, limit switches 57, 58, and 60 are provided at the three positions of the lifting / lowering upper limit / lower limit / retraction to stop the driving of the auger lifting / lowering motor 44 outside the range. Further, in the right turn, the limit position of the right turn is detected by pressing the turn storing switch 55, and the right turn drive is stopped further. Further, in the left turn, the limit position is detected by using the turn position switch 56, and the left turn drive above the limit is stopped. When a plurality of "up", "left", "right" and "down" switches 66, 69, 68, 67 are pressed simultaneously, the auger operation is stopped.

  Then, the operation output of the ECU to the auger turning motor 43 during the manual control is first set by pressing the “right” or “left” switches 68 and 69 as shown in (a) of the timing chart of FIG. The discharge auger 30 starts to turn, and the tip (discharge port) of the discharge auger 30 sporadically moves for a certain distance, then stops temporarily, and if you continue to press the switch, it continues until you stop the operation of the switch. Inching operation (inching) is performed first so that the robot turns.

  More specifically, when the “right” or “left” switches 68 and 69 are pressed and held, the ECU detects that the input signals of the switches 68 and 69 are changed from OFF to ON, and outputs the swing for a predetermined inching time T1. After issuing the command, the turning stop output command is issued for the interval time T2, and thereafter, the turning output command is continuously issued until the switch input signal is turned off (T3). Further, as shown in FIG. 8B, when the "right" or "left" switch 68, 69 is pressed (shorter than inching time T1), the ECU switches the switch 68, 69 input signal from off to on. When the inching time T1 is detected and the turning output command is issued for the inching time T1, the turning stop output command is issued (one-shot output).

  Further, when the "right" or "left" switches 68 and 69 are intermittently pressed with a short cycle, the ECU causes a new "right" or "new" after the first interval time T2 to pass. It does not accept the "left" switches 68, 69 input signal. Even if the “right” or “left” switch 68, 69 is pressed longer than the inching time T1 as in the third input signal shown in FIG. 8C, the ECU similarly turns the switch input signal from OFF to ON. Is detected and a turning output command is issued for the inching time T1, and then a turning stop output command is issued.

  The above-described turning operation of the discharge auger 30 will be described as turning at the same speed in the right turn and the left turn, but in reality, the inertia and frictional resistance of the discharge auger 30 turn right and left. This effect is particularly significant at the start of turning the auger turning motor 43, and even if one shot is output for the same inching time T1, the movement distance of the tip of the discharge auger 30 (the discharge port 37a) is different, and the operation is performed. It causes a feeling of strangeness.

  Therefore, the inching time at the time of one-shot output is made different between the right turn and the left turn. For example, as shown in (d) of FIG. 8, a right turn is performed with respect to the left turn inching time (left output). By reducing the inching time (right output) by a predetermined amount, the distance that the tip of the discharge auger 30 (discharge port 37a) moves (auger tip displacement) is made approximately the same, and the feeling of operation is discomforted.

  Although the difference in the movement distance of the discharge auger 30 in the left-right turning is considered to be the influence of inertia and frictional resistance, the detailed cause has just been clarified. For example, the shake of the discharge auger due to machine vibration or The supporting method of the discharge auger, the backlash of the swing gear, or the swing speed of the discharge auger 30 shown in the embodiment is a speed that is nearly double the normal speed from the retracted position to the position directly behind the aircraft. Etc. are also issues to be considered.

  On the other hand, the operation output of the ECU to the auger lifting motor 44 during the manual control is continuously output so that the discharge auger 30 moves up and down only while pressing the "up" or "down" switches 66 and 67. .. However, like the swiveling operation of the discharge auger 30, the discharge auger 30 first starts moving up and down, and the tip (discharge port) of the discharge auger 30 moves for a certain distance, then stops temporarily, and then the switch continues. The inching operation (inching) may be performed first so that if the buttons 66 and 67 are continuously pressed, the switch is continuously moved up and down until the switch operation is stopped.

  Then, the combine 1 configured as above discharges the grains stored in the grain tank 27 to the outside of the machine when the grain tank is full of grains or the harvesting work is completed by performing the harvesting work in the field. Grain discharge work will be performed. Then, in this case, the combine 1 is moved to the grain discharge destination, for example, near the stop position of the truck. Next, the turning switch 70 is pressed to start automatic turning, whereby the discharge auger 30 turns left and stops until it faces right behind the machine body while being raised to the upper limit by the automatic control of the control device.

  Next, the "down" switch 67 is pushed and the discharge port 37a of the discharge auger 30 is lowered so as to face above the container by manual control of the control device. Further, the "right" or "left" switches 68 and 69 are pushed to manually turn the discharge auger 30 right and left so that the discharge port 37a of the discharge auger 30 faces the center of the container. Then, the grain discharge lever 63 is operated to discharge the grains stored in the grain tank 27 into the container by driving the discharge auger 30.

  Further, when the grains are discharged to a wide range of containers or loading platforms of trucks, the grain discharging operation is temporarily stopped, the grain discharging position is adjusted, and the discharging operation is restarted. As a result, it is possible to change the position of the piles of the grains that are to be piled up on the container or the loading platform to increase the loading amount of the grains on the container or the loading platform, and to efficiently carry the grain transportation work.

  Then, when adjusting the discharge position of the grain by using the “right” or “left” switches 68, 69, the control device controls the operation time of the left / right turning switch (“right” “left” switches 68, 69). Irrespective of the length of the discharge auger, the left / right swing actuator (auger swing motor 43) is sporadically operated for a predetermined short time T1 to swing the discharge auger 30 right / left by a substantially constant amount (distance).

  Therefore, when the discharge auger 30 is rotated right and left via the actuator 43 to move to the grain discharge position or the like, the discharge auger 30 is always moved at a high speed without changing the moving speed of the discharge auger 30 itself to improve work efficiency. Although it can be done, the left / right turning actuator 43 is set to a predetermined value by a simple operation of pressing the left / right turning switches 68, 69 for a short time for fine adjustment of the discharging auger 30 to the grain discharging position. By operating (one-shot output) for a short time T1, the discharge auger 30 can be reliably swung right and left by a substantially constant amount without excess or deficiency.

  Therefore, when performing fine adjustment at the grain discharge position, the discharge auger 30 moves at high speed, but the amount of movement of the discharge auger 30 per one operation of the left and right turning switches 68, 69 can be suppressed to a small amount. The discharge auger 30 does not reach the target moving position or goes too far due to the slow speed of the instruction to stop the operation of the turning actuator 43, and the left and right turning switches 68 and 69 must be operated in consideration of the stop timing. There is no need to worry.

  In addition, when the adjustment of the discharge auger 30 to the proper grain discharge position is not completed by one operation of the left and right turning switches 68 and 69, the switch operation is repeated again to adjust to the proper grain discharge position. It can be carried out. Further, even if the switch is operated for a long time after the left / right turning actuator 43 has stopped its operation, the discharge auger 30 can be turned left / right by a substantially constant amount regardless of the length of the operation time. It is not necessary to consider the manual control of 68 and 69, and the fine adjustment at the grain discharge position can be easily performed.

  Further, the control device actuates the left / right turning actuator 43 by itself for a predetermined short time T1, and then, while the predetermined interval T2 is set, the left / right turning switches 68, 69 are operated by a new left / right turning operation. Since the actuator 43 is not actuated in a single operation, the left and right turning actuator 43 is prevented from continuously operating by a plurality of operations of the left and right turning switches 68 and 69, and the left and right turning actuator 43 is actuated in a single operation. The operation can be performed stably. In addition, it is possible to prevent the left-right turning actuator 43 from being turned rightward or leftward and the operation directions thereof being instantaneously reversed to adversely affect the life of the actuator.

  Further, the control device sets the predetermined time T1 for independently operating the left / right turning actuator 43 separately for right turn or left turn, and turns the discharge auger 30 left / right by a substantially constant amount regardless of the turning direction. Therefore, it is possible to eliminate a feeling of strangeness in the operation feeling due to the difference in the movement amount of the discharge auger 30 in the right turn or the left turn, and improve the stable operation of the actuator 43 and the operability of the left and right turn switches 68, 69. it can.

  Then, when the left / right turning switches 68, 69 are operated longer than a predetermined interval T2, the control device continuously actuates the left / right turning actuator 43 until the left / right turning switches 68, 69 are no longer operated. From the position where the discharge auger 30 faces right behind the machine to the grain discharge position that faces the right side of the machine, or from the grain discharge position to the storage position, or conversely, from the storage position to the grain discharge position by manual control. When turning, the discharge auger 30 can be efficiently turned to a target position at a high speed by long pressing the left and right turning switches 68 and 69.

  Moreover, the fine adjustment operation of the discharge auger 30 and the quick movement operation can be selectively used by using the same switch 68, 69 only by changing the operation mode of the swivel switch 68, 69 such as a momentary operation such as a continuous operation and a long press. Therefore, the grain discharging device of the Glen tank 27 can be made simple and inexpensive. Although the electric motors 44 and 43 are used as the actuators for vertically moving the discharge auger 30 up and down and rotating left and right in the above-described embodiment, a hydraulic motor or a hydraulic cylinder may be used, and the present invention is not limited to the above embodiment. Not something.

1 Combine 27 Glen tank 30 Discharge auger 43 Auger turning motor (actuator)
44 Auger lifting motor (actuator)
68 "Right" switch (left / right turning switch)
69 "Left" switch (left / right turning switch)

Claims (4)

  A grain tank that stores the grain that has been cut and threshed and sorted, a discharge auger that discharges the grain that is stored in the grain tank to the outside of the machine, and a discharge auger that is moved up and down and rotated left and right via an actuator to be stored in the machine body. From the position to the grain discharge position, the fine adjustment in the grain discharge position, or in the combine provided with the control device for moving from the grain discharge position to the storage position, the control device performs the fine adjustment in the grain discharge position of the discharge auger. In this case, regardless of the operating time of the vertical up / down or left / right swivel switch, the vertical / horizontal up / down or left / right swivel actuator is activated for a predetermined short time to raise / lower the discharge auger by a substantially constant amount. Alternatively, a combine characterized by turning left and right.   The control device actuates the vertical up / down or left / right swing actuator by itself for a predetermined short time and then, while a predetermined interval is set, a new vertical up / down or a vertical up / down associated with the operation of the left / right swing switch or The combine harvester according to claim 1, wherein the left and right turning actuators are not operated individually.   The control device separately sets a predetermined time for actuating the up / down ascending / descending or left / right swiveling actuators individually for up / down or right turn or left turn, and controls the discharge auger in the up / down direction or the turn direction. The combine according to claim 1 or 2, wherein the combine is vertically moved up and down or turned left and right by a substantially constant amount.   When the vertical up / down or left / right swivel switch is operated for longer than a predetermined interval, the control device continuously operates the vertical up / down / left / right swivel actuator until the vertical up / down or left / right swivel switch is no longer operated. The combine according to claim 2 or 3, characterized in that

Images