JPH0928172A - Discharger of harvest in harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase safety by preventing abrupt moving of an auger caused by an operation in the machine to affect danger to an operator at the outside of the machine after finishing of work of a discharging auger at the outside of the machine. SOLUTION: Switches CR, CL, CU and CD in an inside machine-operating part 10 are made to invalid during a prescribed time after finishing the operation at an outside machine-operating part 20 by an inside machine-operation permission-delaying means 200 and the operation from the inside machine- operating part 10 is at first permitted after passing the prescribed time. By the method, a time shunting to the outside of a moving locus of the discharging auger 7 after finishing the outside-machine working can be secured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvesting device for a harvester that discharges a harvested product such as a combine harvester storage tank to a truck or the like outside the machine via a discharge auger.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Utility Model Laid-Open No. 5-82235, a discharge auger for discharging a harvested product is provided via a moving device so that it can be vertically moved up and down and rotated horizontally. Can be moved not only by an in-machine operation unit provided in the driver's seat but also by an operation from an out-of-machine operation unit provided at the discharge-side tip of the discharge auger. In this way, at the discharge work position of the truck or the like, the position of the tip of the discharge auger is properly adjusted from outside the machine by the operation section outside the machine so that the harvested product can be uniformly released to the loading platform. Along with this, the operation command from the outside operation unit is given priority over the inside operation unit, and when the outside operation unit is operating from outside the machine, the operation from the inside operation unit is invalidated and the discharge work position is set. It prevents the discharge auger from suddenly approaching the workers outside the machine, and ensures the safety of work.

[0003]

However, in the above, the operation from the in-flight operation section becomes ineffective when operating the out-of-flight operation section, and the movement of the discharge auger unintended by the operator on the outer side of the machine is disabled. Although it can be prohibited, when the operation on the operation part outside the machine is stopped, the operation on the operation part inside the machine becomes possible immediately, so it is possible for workers outside the machine at the discharge work position to evacuate outside the trajectory of the discharge auger. If it is forgotten or if the evacuation is delayed, the worker on the outside of the machine may be at risk due to the movement of the discharge auger due to the operation of the in-machine operation section. There was a problem that it required a lot of movement and considerable attention.

An object of the present invention is not to allow the operation from the in-machine operation section immediately after the completion of the out-of-machine operation at the discharge work position, but to add a condition for permitting the operation from the inside of the machine. After the work on the outside of the machine is finished, it is an object to provide a device for discharging a harvested product in a harvester, which can prevent a worker on the outside of the machine from being in danger and can sufficiently enhance the safety of the work.

[0005]

In order to achieve the above object, the invention according to claim 1 discharges the harvested product from the harvested product storage tank 5 to the outside of the machine as shown in FIGS. 1 to 5. A discharge auger 7, a moving device 8 for moving the auger 7 to a discharge work position and a storage position, an in-machine operation unit 10 of the moving device 8 provided in a driver's seat, and a discharge-side tip of the discharge auger 7. In addition, in the harvesting device of the harvester provided with the operation unit 20 of the moving device 8 in which the operation command has priority over the in-machine operation unit 10, FIG.
As shown in FIG. 6, the in-flight operation permission delay means 200 is provided which prohibits the operation of the moving device 8 by the in-flight operation unit 10 for a predetermined time after the end of the operation of the out-of-flight operation unit 20 and releases the prohibition after a lapse of time.

Similarly, in order to achieve the above-mentioned object, the invention according to claim 2 has the same precondition as that of the invention according to claim 1, as shown in FIG. 8 and FIG. 9 or FIG. After the operation of the operation section 20 outside the machine, the operation of the moving device 8 by the operation section 10 inside the machine is prohibited, and the prohibition means for canceling the operation inside the machine that cancels the prohibition by operating the return switch 300 provided at the tip of the discharge side of the discharge auger 7. 400 was provided.

[0007]

According to the first aspect of the invention, as shown in FIGS. 6 and 7, the in-flight operation permission delay means 200 allows the in-flight operation section 10 to operate for a predetermined time after the operation of the out-of-flight operation section 20 is completed. The operation of the moving device 8 is prohibited by the above, and the prohibition is released only after a lapse of time, and the operation from the in-flight operation unit 10 is permitted. For this reason, the worker working at the discharge work position on the outside of the machine can secure the time to evacuate to the outside of the movement trajectory of the discharge auger 7 after finishing the work, and does not particularly evacuate. However, it is possible to secure a margin for discerning the movement of the discharge auger 7, and it is possible to reduce the danger that the discharge auger 7 suddenly approaches the worker on the outside of the machine and the safety of the worker on the outside of the machine is sufficiently reduced. Can be increased to

In the invention described in claim 2, FIG. 8 and FIG.
Alternatively, as shown in FIG. 10, unless the operator outside the machine operates the return switch 300 provided on the discharge side tip of the discharge auger 7 after the operation of the operation section 20 outside the machine, the prohibition of the operation inside the machine is released. The means 400 prohibits the operation of the moving device 8 by the in-flight operation unit 10, and the prohibition is released only after the operation of the return switch 300.
Operations from 0 are allowed. In this way, since the operator working at the discharge work position outside the machine allows the operation of the in-machine operation section 10 by his / her own will, the margin for retreating out of the movement trajectory of the discharge auger 7 and the discharge auger 7 It is possible to secure a margin for discerning the movement of 7, and it is possible to reduce the danger that the discharge auger 7 suddenly approaches the worker on the outside of the machine and the safety of the worker on the outside of the machine can be sufficiently enhanced. .

[0009]

1 and 2 show a discharge device according to the present invention applied to a combine, wherein 1 is a machine body having traveling devices 2 on both lower sides thereof. The cutting section 3 provided with the cutting blade 31 and the grain culm raising chain 32 is arranged in the front part of the machine, and the threshing section 4 provided with the handling barrel 41 and the feed chain 42 is mounted on the upper side of the machine body 1. The threshing section 4 threshes the grain culms harvested by the harvesting section 3. A grain storage tank 5 is mounted in parallel on the side of the threshing unit 4, and the grains that have been threshed by the threshing unit 4 are stored in the storage tank 5 from a sorting device via a lifting barrel 43. I try to take it out. In addition, 6 is an engine part, and the rotative power output from the engine part 6 drives the mowing part 3, the threshing part 4, etc.

The storage tank 5 is provided with a grain discharging device, and this discharging device discharges the grains stored in the storage tank 5 to the outside of the machine, and the auger 7 by a truck T. It is provided with a moving device 8 that moves the discharging work position for carrying out the loading work to the storage device and the storage position at a predetermined position of the machine body.

As shown in FIG. 3, the discharge auger 7 and the grain conveying auger 71 arranged in the storage tank 5 in the front-rear direction of the machine and the storage auger 7 are erected on the rear side of the storage tank 5. From a vertical auger 72 that vertically feeds the grain transported from the transport auger 71, and a horizontal auger 73 that is connected to the upper side of the vertical auger 72 and discharges the grain transported from the vertical auger 72 to the outside of the machine. The horizontal auger 73 is supported by the vertical auger 72 so as to freely rotate and move up and down. And vertical auger 72 and horizontal auger 73
The moving device 8 is interposed between the horizontal auger 73 and the vertical auger 72, and the horizontal auger 73 is rotated and moved up and down with respect to the vertical auger 72. As shown by the solid line in FIG. Storage rest 4 provided with 73 on the upper side of the threshing unit 4
4 is moved between the storage position stored in 4 and the discharge work position facing the loading platform of the truck T as shown by the phantom line in FIG.

The details of the connecting portion between the vertical auger 72 and the horizontal auger 73 are as shown in FIG. That is, the rotary flange 74 is rotatably provided on the upper side of the vertical auger 72, the intermediate flange 75 is fixed to the upper side of the rotary flange 74, and the base provided on the intermediate flange 75 and the horizontal auger 73. By connecting the end auger 76 with the end flange 76 via the joint flange 77, the horizontal auger 73 can be horizontally rotated with respect to the vertical auger 72 about the rotating flange 74, and the horizontal auger 73 can be vertically moved. With respect to the auger 72, the joint flange 77 can be swung vertically.

The moving device 8 rotates the horizontal auger 73 in the horizontal direction with respect to the vertical auger 72, and
The horizontal auger 73 is rotated horizontally with respect to the vertical auger 72. To rotate the horizontal auger 73 horizontally, a driven gear 81 provided on the lower surface of the upper side of the rotary flange 74 is used. Drive gear 82 meshing with gear 81
And an auger turning motor M for driving the drive gear 82 to rotate, and the drive gear 82 is driven by the drive of the motor M.
The rotary auger 74 is rotated through the driven gear 81, and the horizontal auger 73 is horizontally rotated by the rotation of the rotary flange 74. Further, as a means for moving the horizontal auger 73 up and down with respect to the vertical auger 72, a joint flange 77 in the intermediate flange 75 is used.
A swing arm 86 supported by a shaft rod 84 provided at the center of rotation of the shaft and a shaft rod 85 provided on the base end flange 76, and a support piece 87 provided on the tip side of the swing arm 86. An auger elevating cylinder S composed of a hydraulic device that connects the supporting piece 87 and the intermediate flange 75 via shaft rods 88 is provided, and the rocking arm 86 is operated by the operation of the elevating cylinder S.
Is moved up and down, the horizontal auger 73 is moved up and down around the joint flange 77.

The vertical auger 72 and the horizontal auger 73
Are auger cylinders 72a and 73a, and the cylinders 72a and 73a,
Screw conveyors 72b, 73 inserted into 73a
The horizontal transfer screw conveyor 75a is provided inside the intermediate flange 75, and the screw conveyors 72a and 73a are interlocked with each other via the horizontal transfer screw conveyor 75a.

The driver's seat provided on the machine body 1 has an in-machine operating section 10 of the moving device 8, and the discharge-side tip of the lateral auger 73 of the discharging auger 7 has the outside operating section 20 of the moving device 8. It is provided. These operation units 10 and 20
Both of them mainly support the operation lever A (B) in the operation box 11 (21) so as to be movable in the front-rear direction and the left-right direction as shown in FIG. 5, and to the right of the operation lever A (B). Right turn switch CR (TR), which operates by moving
A left turning switch CL (TL) operated by moving the operating lever A (B) to the left, a raising switch CU (TU) operating by moving the operating lever A (B) forward, and an operating lever A
The lowering switch CD (T
D) is provided, and any one of the switches is selected by the operation of each operation lever A (B) to be turned on, thereby operating the auger lifting cylinder S or the auger turning motor M of the moving device 8. The horizontal auger 73 is moved from the storage position to the discharge work position, and the horizontal auger 7 is moved.
3 is stored from the discharge work position to the storage position.

Each switch C constituting the in-flight operation section 10
Each of the switches TR, TL, TU, TD constituting the R, CL, CU, CD and the external operation unit 20 is, as shown in FIG. 6, an auger turning motor M and an auger lifting cylinder S.
Is input to the controller 100 that controls the. Then, the switches TR, TL, TU, T of the external operation unit 20
When any one of D is turned on and the external operation is performed,
The priority control relay R1 is excited to open the contact r1 to disconnect the operation command lines of the switches CR, CL, CU, and CD of the in-machine operation unit 10 to invalidate the operation inside the machine. In this way, the operation command of the operation section 20 outside the machine has priority over the operation section 10 inside the machine. FIG.
Inside, Vcc shows a power supply.

In the above structure, after the operation of the operation section 20 outside the machine is completed, when the predetermined time of about 10 to 20 seconds is counted by the timer TA using the clock attached to the controller 100, the operation section inside the machine is performed. An in-flight operation permission delay means 200 is provided which prohibits the operation of the moving device 8 by 10 and releases the prohibition of the operation on the in-flight operation section 10 side after the count-up by the timer TA.

The in-flight operation permission delay means 200 is constructed on the program of a microcomputer provided in the controller 100, and specifically, FIG.
First, as shown in FIG.
It is determined whether any of TL, TU, and TD is turned on and the external operation is performed (step a). If the external operation is performed, the switch that is turned on is turned off. Then, the timer TA is cleared when the operation outside the machine is completed (step b). If the operation outside the machine has already ended, the timer TA is incremented (step c).

Next, it is judged whether or not the timer TA has passed a predetermined time TS, for example, a fixed time selected from 10 to 20 seconds (step d).
The on / off commands of the switches CR, CL, CU, and CD of the in-machine operation unit 10 are ignored, and the movement of the discharge auger 7 based on the operation from the indoor side is prohibited (step e). More specifically, the ascending / descending output to the auger lifting cylinder S is prohibited, the cylinder S is kept in a pressure maintaining state, the right turning and the left turning outputs to the auger turning motor M are prohibited, and The drive stop output is output to M to restrain the rotation. When the timer TA counts up by counting over the predetermined time TS,
For the first time, each switch CR, CL, CU of the in-flight operation unit 10
The on / off command of the CD is checked, and the auger lifting cylinder S or the auger turning motor M is driven according to the ON switch to drive the discharge auger 7 up or down or turn right or left. If all the switches are off, the discharge auger 7 is held in a stopped state (step f).

Thus, while the timer TA is counting, the operation from the inside of the machine is prohibited, and the safety of the operator outside the machine can be achieved.

Further, in the structure shown in FIG. 6, the in-machine operation unit 1
When the emergency stop switch ES consisting of a push button switch arranged on the tip side of the auger is connected in series with the switch line of 0, and when the worker outside the machine does not evacuate and stays in the work position due to circumstances, Even if the discharge auger 7 unexpectedly moves due to an in-flight operation, the discharge auger 7 can be brought to an emergency stop by a simple operation of simply pressing a push button switch, and safety in case of emergency can be achieved.

In the above, the in-flight operation permission delay state 200 for prohibiting the in-flight operation for a predetermined time by the timer TA and allowing the in-flight operation by delaying after the elapse of the predetermined time is provided.
In addition, as shown in FIG. 8, after the operation of the operation section 20 outside the machine is completed, the controller 100 prohibits the operation of the moving device 8 by the operation section 10 inside the machine, and a return switch provided at the tip of the discharge side of the discharge auger 7. In-flight operation prohibition canceling means 400 for canceling prohibition by operating 300 may be provided.

That is, in this case, as shown in FIG. 9, first, the switches TR, TL, T of the operation section 20 outside the machine are arranged.
It is determined whether any of U and TD is turned off from ON and the outboard operation is completed (step g). When the outboard operation is completed, the auger lifting cylinder S and the auger turning motor M are determined. A drive stop output is issued to stop the movement of the discharge auger 7 (step h).

In this stopped state, it is again determined whether any of the switches TR, TL, TU, TD of the outboard operation unit 20 is turned from off to on and the outboard operation is continued (step i). When the outside switch is turned on again, the drive stop output to the auger lifting cylinder S and the auger swing motor M is released to allow the discharge auger 7 to move from the outside (step j).

On the other hand, the switches on the outside of the machine are not turned on, but the switches CR, CL, CU, and
When any one of the CDs is turned on, the drive stop output is not released, the in-flight operation is kept in a prohibited state, and the drive stop output is released only when the return switch 300 is turned on. Operation from inside the aircraft is allowed (step k).

Thus, unless the return switch 300 is turned on, the operation from the inside of the machine is prohibited, and the safety of the operator outside the machine can be achieved.

The in-flight operation prohibition canceling means 400 may be constructed by a program of the controller 100, or may be constituted by a relay circuit as shown in FIG. That is, in this device, a self-holding relay R2 having a contact r2 for self-holding the operation of the priority control relay R1 and a return switch 300 composed of a push button switch or the like are connected in series to the switch line of the external operation unit 20. Wearing and operating outside the machine 20
When any of the switches TR, TL, TU, and TD of No. 1 is turned on to start the operation outside the machine, the contact r1 of the priority control relay R1 is continuously opened, and the switches CR and C of the in-machine operation unit 10 are opened.
While the L, CU, and CD operations are continuously disabled, the self-holding is released by turning off the return switch 300 to allow the operation from the inside of the aircraft for the first time.

By the way, in the above configuration, the discharge auger 7 is automatically set from the storage position to the discharge work position or automatically from the discharge work position to the storage position by operating the automatic set switch from the driver side. It enables storage. In this case, before shifting to the turning operation of the discharge auger 7, the discharge auger 7 is raised by the auger lifting cylinder S in order to avoid interference with the machine body or an external worker. The mowing part 3 connected to the common hydraulic circuit because 7 was raised.
If the elevating cylinder of (1) is preferentially operated, there is a problem that the amount of oil supplied to the auger elevating cylinder is insufficient and the discharge auger 7 does not rise sufficiently. Therefore, in this device, as shown in FIG. 11, a hydraulic switch O is provided in the pressure line from the hydraulic pump P to the control valve V of the auger lift cylinder S, and as shown in FIG. After detecting the fact that the auger elevating cylinder S has reached the ascending stroke end, the turning is started.

Further, when the driver operates the automatic storage switch of the discharge auger 7 to automatically store the discharge auger 7, the discharge is actually discharged due to a failure of the auger swing motor M or the like or an operation error. If the auger 7 is not stored in the storage position and the vehicle starts running in this state, the discharge auger 7 may hit a truck, a power pole or a person. Therefore, as shown in FIG. 13, a storage detection switch C for detecting that the discharge auger 7 is in the storage position and a vehicle speed sensor R are connected to the input side of the controller 100, and an alarm lamp L is provided on the output side. Also, an alarm buzzer BZ is connected, and an alarm is output when it is detected that the discharge auger 7 is in the non-housed state and is in the machine traveling state.

Further, the turning movement of the discharge auger 7 by the external operating section 20 is performed by the PW with respect to the auger turning motor M.
M control (pulse width module)
However, the on-duty (OnDuty) output to the auger turning motor M is changed according to the turning load accompanying the auger turning so that appropriate control can be performed according to the load.
That is, a rotation position potentiometer for measuring the angle (maximum, for example, 255 degrees) in the counterclockwise direction with the storage position (see FIG. 2) in which the discharge auger 7 is in the storage rest 44 as an angle of 0 degree is provided, and the discharge work from the storage position is performed. A turning means for detecting turning direction is provided with turning to the position as left turning and reverse as right turning, and these are inputted to the controller 100 as shown in FIG. The potentio change rate for t1 seconds is calculated by subtracting the potentio value for a certain period of time (t1 seconds before) from the potentio value of, and from this change rate, Table 1 is shown for left turn and Table 2 for right turn. As shown in FIG.
t) and on-duty (OnDuty) are calculated.

[0031]

[Table 1]

[0032]

[Table 2]

In this way, the turning load of the discharge auger 7 increases or the discharge auger 7 is pinched, etc., and the rate of change becomes ≦ 0 when turning left and the rate of change ≧ 0 when turning right. Even if it does not change or tends to retrograde,
Since nDuty is increased by the minimum Duty increase amount N, the power of the auger turning motor M can be increased against the load increase, and proper turning control can be performed while turning at a low speed.

[Brief description of drawings]

FIG. 1 is a side view of a combine with an ejector according to the present invention.

FIG. 2 is a plan view of the combine.

FIG. 3 is a side view of the storage tank portion.

FIG. 4 is a side view of the moving device portion.

FIG. 5 is a perspective view of an operation unit inside and outside the machine.

FIG. 6 is a circuit diagram showing a first embodiment of the discharging device.

FIG. 7 is a control flowchart of the first embodiment.

FIG. 8 is a circuit diagram showing the second embodiment.

FIG. 9 is a control flowchart of the second embodiment.

FIG. 10 is a circuit diagram showing the third embodiment.

FIG. 11 is a hydraulic circuit diagram of the auger lifting cylinder portion.

FIG. 12 is a control flowchart of the auger lifting cylinder portion.

FIG. 13 is a diagram of an alarm circuit when the auger is stored incorrectly.

FIG. 14 is a control circuit diagram of the auger swing motor portion.

[Explanation of symbols]

5: Harvested product storage tank, 7; Discharge auger, 8; Transfer device, 10; In-flight operation section, 20; Out-of-flight operation section, 200; In-flight operation permission delay means, 300; Return switch, 400;
In-flight operation prohibition release means

Front page continued (72) Takashi Yamada, Inventor Takashi Yamada 1-32, Chayamachi, Kita-ku, Osaka, Yanma Agricultural Machinery Co., Ltd. (72) Ritsuko Kajioka, 1-32, Chayamachi, Kita-ku, Osaka, Osaka In Agricultural Machinery Co., Ltd. (72) Inventor Wataru Nakagawa 1-32 Chayamachi, Kita-ku, Osaka-shi, Osaka Yanma Agricultural Machinery Co., Ltd.

Claims (2)

[Claims] 1. A discharge auger (7) for discharging a harvest from a harvest storage tank (5) to the outside of the machine, and the auger (7).
A moving device (8) for moving the discharge device to the discharge work position and the storage position, an in-machine operation part (10) of the moving device (8) provided in the driver's seat, and a discharge side tip part of the discharge auger (7), In addition, in the discharge device of the harvested product in the harvester, which is provided with the outside operation unit (20) of the moving device (8) in which the operation command has priority over the inside operation unit (10), the outside operation unit (20) In-flight operation permission delay means (200) for prohibiting the operation of the moving device (8) by the in-flight operation section (10) for a predetermined time after the end of the operation and canceling the prohibition after a lapse of time.
A device for discharging a harvested product in a harvesting machine, which is characterized in that: 2. A discharge auger (7) for discharging the harvest from the harvest storage tank (5) to the outside of the machine, and the auger (7).
A moving device (8) for moving the discharge device to the discharge work position and the storage position, an in-machine operation part (10) of the moving device (8) provided in the driver's seat, and a discharge side tip part of the discharge auger (7), In addition, in the discharge device of the harvested product in the harvester, which is provided with the outside operation unit (20) of the moving device (8) in which the operation command has priority over the inside operation unit (10), the outside operation unit (20) After the operation is completed, the operation of the moving device (8) by the in-flight operation section (10) is prohibited, and the prohibition is released by the operation of the return switch (300) provided at the discharge side tip of the discharge auger (7). A device for discharging a harvested product in a harvester, which is provided with means (400).