JPH11206236A - Combine - Google Patents

Abstract

(57) [Problem] To provide a combine which can perform control for moving an unloader device to a set position by automatic control without any inconvenience. SOLUTION: When an automatic switch 37 is turned on, a lifting motor 17 is driven for a set time, and thereafter, a turning motor 15 is driven for a set time to move the discharge port of the unloader device to a discharge position F at the rear of the vehicle body. The control operation of the control device 44 was set so as to perform the time control.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention includes an unloader device for feeding out grains stored in a grain tank, a moving actuator for moving a grain discharging position by changing the attitude of the unloader device, and operating a moving switch. The present invention relates to an improvement in a combine provided with a control device for controlling the movement actuator based on the control device to move a grain discharging position from the unloader device to a preset position.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. 3-22916 discloses a combine having the above-mentioned structure. In this conventional example, sensors for measuring the attitude of an unloader (or auger in the conventional example) are used. And an actuator for setting the posture of the unloader device, and a control device, and a control for automatically operating the unloader device from the storage position to the discharge position by operating an auto switch, and automatically controlling from the discharge position to the storage position. The control operation of the control device is set so as to perform the control to operate.

[0003]

In the conventional method in which the actuator is controlled while feeding back the attitude of the unloader device using sensors, the attitude control of the unloader device can be performed with high accuracy, but the sensors have failed. In this case, it becomes impossible to control and there is room for improvement. Explaining concretely with the configuration of the conventional example, consider the case where the auto switch is operated for the purpose of turning the unloader device in the storage position to the discharge position, and when the unloader device does not reach the upper limit at the time of this operation. Performs control to raise the unloader device to the upper limit, and then, when the rise to the upper limit is detected by the limit switch, stops the ascent operation and starts turning, and by this turning, the unloader device reaches the target position. The control to stop the turning of the unloader device measured by the turning position sensor is performed. However, when the limit switch or the position detection sensor breaks down, the attitude control of the unloader device becomes impossible, which leads to the inconvenience.

SUMMARY OF THE INVENTION An object of the present invention is to rationally construct a combine which can control the unloader device to a set position by automatic control without any inconvenience.

[0005]

A first feature (claim 1) of the present invention is to provide an unloader device for feeding out the grains stored in a grain tank, and a grain discharge position by changing the attitude of the unloader device. A moving actuator for moving the
A combine comprising a control device that controls the movement actuator based on operation of a movement switch to move a grain discharge position from the unloader device to a preset position, wherein the movement switch is operated when the movement switch is operated. The control operation of the control device is set so as to move the kernel discharge position to a preset position by operating the control unit for a set time. The operation and effect are as follows.

According to a second feature of the present invention (claim 2), in claim 1, the unloader device feeds the grains from the lower part of the grain tank upward by a vertical conveyor, and sends the grains to the upper end of the vertical conveyor. The moving grain is configured to be sent in a substantially horizontal direction by a horizontal conveyor and discharged from a transport end, and the moving actuator pivots the horizontal conveyor around a vertical axis, and a transport end of the horizontal conveyor. And a lifting actuator for raising and lowering, and operated the movement switch to move the transport end of the horizontal conveyor from a storage position toward the front of the vehicle body to a discharge position where the transport end of the conveyor toward the rear of the vehicle body. In this case, after driving the elevating actuator for a set time and raising the horizontal conveyor, driving the swing actuator for a set time Control operation of the control device so as to pivot the conveying end of the conveyor to the discharge position is set, there is a point, its action and effects are as follows.

According to the first feature, the grain discharging position of the unloader device is moved to a preset position by operating the moving actuator for a set time. Not only does it not require a part for position measurement, but when it reaches the grain discharge position compared to the one that measures with a sensor etc., the control is not affected by the failure of the sensor etc. Not even.

According to the second feature, when the unloader device is moved from the storage position to the discharge / discharge position, the lifting / lowering actuator is driven for a set time to raise the horizontal conveyor, and then the set time is set. Since only the swing actuator is driven to swing the transport end of the horizontal conveyor to the unloading position, not only is it not necessary to use position measurement components such as two sensors, but also the horizontal conveyor is raised prior to the rotation, for example, Even if the horizontal conveyor is lowered at the storage position and is supported on the vehicle body side, it is possible to turn while avoiding contact between the member protruding from the upper surface of the vehicle body and the horizontal conveyor.

[Effects of the Invention] Therefore, the components for moving the unloader device to the set position by automatic control are small, and the components are configured so as not to be easily broken down or controlled. In addition, the unloader device can be smoothly swung from the storage position to the discharge position in a state in which it is unlikely to fail or become uncontrollable (claim 2).

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, a pre-cutting unit 3 that raises and lowers a bar and raises and lowers a stock to a front portion of a vehicle body 2 configured to be able to travel freely by a crawler traveling device 1 is provided. At the same time, a boarding operation unit having a driver's seat 4 is arranged at a position in parallel with the pre-cutting processing unit 3, and a threshing device 5 for threshing the cutting sticks from the pre-cutting unit 3, and a threshing device 5 A grain tank 6 for storing grains from the car is mounted on the vehicle body 2 in a side-by-side state, and an combiner is provided with an unloader device A for sending out the grains stored in the grain tank 6. .

As shown in FIG. 1 to FIG.
Is configured so that the grains from the threshing apparatus 5 are fed through the frying apparatus 7, and are formed so that the bottom is tapered downward in the front-rear direction. A bottom screw 8 for feeding is provided. The unloader device A includes a vertical conveyor 9 composed of a vertical screw 9A and a vertical transport cylinder 9B in a vertical position to which the kernel from the bottom screw 8 is sent, and a grain from the lower side (upper end) of the vertical conveyor 9 transport. A discharge port 11 (grain) having an opening for sending out grains at a leading end position of the horizontal conveyor 10 is provided with a horizontal conveyor 10 composed of a horizontal screw 10A and a horizontal transport cylinder 10B in a substantially horizontal position through which the grains are sent. Further, the horizontal conveyor 10 is configured to be divided and foldable at an intermediate position, and the amount of protrusion outside the vehicle body can be reduced by folding as shown by a virtual line in FIG. ing.

As shown in FIGS. 3 and 4, the lower end of the screw shaft 8S of the bottom screw 8 and the lower end of the screw shaft 9S of the vertical screw 9A are vertically conveyed to a gear case 12 containing a gear. Pipe 9B to vertical screw 9
A vertically rotatable support is provided around the axis Y of A. A wheel gear 13 is fixed to the lower end of the vertical transport cylinder 9B and drives a worm gear 14 that meshes with the wheel gear 13. A swing motor 15 (an example of a movement actuator and a swing actuator) is provided. or,
A gear case in which gears for interlocking the screw shafts 9S and 10S of the vertical screw 9A and the horizontal screw 10A are respectively constituted by two members, a case 9C at the upper end of the vertical conveyor and a case 10C of the horizontal conveyor 10, and each case 9C. , 10C are swingably connected around an axis X in a horizontal position so that the transport end side of the horizontal conveyor 10 can be raised and lowered, and a bracket fixed to the vertical transport cylinder 9B and the horizontal transport cylinder 10B. A screw shaft 18 that can be extended and contracted by the driving force of an electric motor 17 (an example of a moving actuator and an elevating actuator) that is electrically driven and rotatable forward and backward between the 16 and 16.
And a gas spring 19 for applying a force in the direction of extension. The gas spring 19 has a function of obtaining a biasing force in the extension direction by applying the pressure of the gas sealed in the cylinder to the piston, and this gas spring 19 assists the raising operation of the horizontal conveyor 10. It is something to do.

With such a configuration, the entire unloader device A can be turned in any direction around the axis Y by the driving force of the turning motor 15. The horizontal conveyor 10 can be swung up and down around the axis X by force to freely set the height of the discharge port 11.

As shown in FIGS. 6, 7 (a) and 7 (b), the front end of the screw shaft 8S of the bottom screw 8 (upper side of conveyance).
An input shaft 23 for transmitting power via a bevel gear type transmission mechanism 22 is disposed in a horizontal posture.
And an engine 24 disposed below the driver's seat 4
A pulley 26, 27 is provided on the output shaft 25, and an endless belt 28 is wound around each of the pulleys 26, 27, and a tension pulley supported on the swinging end of a tension arm 29 to apply tension to the endless belt 28. And a clutch mechanism C. Also, an operating arm 31A of a motor-driven clutch motor 31 which can be rotated forward and backward and a tension arm 29 are linked via a rod 32 and a spring 33, and the driving force of the clutch motor 31 causes the tension arm 2 to rotate.
9 is configured to be freely switchable between a clutch engagement position and a clutch disengagement position, and is provided with discrimination switches 34, 34 for judging that the operation arm 31A has reached the clutch engagement position and the clutch disengagement position.

As shown in FIGS. 1, 2, and 8, a control stick 36 for controlling the attitude of the unloader device A is provided at a position rearward of the driver's seat 4, and the attitude of the unloader device A is shown in FIGS. An automatic switch 37 (an example of a movement switch) that is set to one of the storage position E and the discharge position F shown in (b), a clutch switch 38 that performs on / off control of the clutch mechanism C, and a state of the clutch mechanism C are determined. A pilot lamp 39 is provided. The control stick 36 is spring-biased so as to return to the neutral position, and is configured to be operable in the cross direction. When the control stick 36 is operated in each position in the cross direction, the unloader device A can move in either the left or right direction. The automatic switch 37 and the clutch switch 38 have a structure that can be turned ON only when a push operation is performed, respectively. In the storage position E, FIG.
As shown in FIG. 4, the horizontal conveyor 10 is received and supported by a support portion 41 at the upper end of a column 40 erected on the vehicle body. When the unloader device A is in this position in plan view, FIG.
As shown in FIG.
A storage position switch 43 that is turned ON by 2A is provided. The discharge posture F is such that the discharge port 11 of the unloader device A is located behind the vehicle body.

The combine is provided with a control device 44 for controlling the turning of the unloader device A, raising and lowering control, and controlling the clutch mechanism C. The control device 44 includes a microprocessor. As shown in FIG. 10, the control device 44 has a left switch 36L and a right switch 36L corresponding to the four operation positions of the control stick 36.
A system for inputting signals from the R, upper switch 36U, and lower switch 36D is formed, and a system for inputting signals from the automatic switch 37, the clutch switch 38, and the storage position switch 43 is formed. A system for outputting a control signal for driving the rotation motor 15, the lifting motor 17, and the clutch motor 31 in the forward and reverse directions and a control signal for driving the pilot lamp 39, and further comprising the discrimination switch linked to the clutch motor 31. A system for inputting signals from 34, 34 is formed. The control operation of the control device 44 is set as follows.

That is, as shown in the flowchart of FIG. 11, when the control stick 36 is manually operated, if the left switch 36L is turned on, the turning motor 1 is turned on.
5, the unloader device A is turned to the left, and if the right switch 36R is turned on, the turning motor 15 is driven to turn the unloader device A to the right. If the upper switch 36U is turned on, the lifting motor 17 is driven. Control is performed in accordance with the operation direction of the control stick 36 so that the horizontal conveyor 19 is lowered by driving the lifting motor 17 when the lower switch 36D is turned ON (# 101,
When the automatic switch 37 is turned ON without manual operation, the automatic turning routine is executed, and the operation of executing the clutch control routine is repeated until the operation is reset. (#
103, # 200, # 300, # 104 steps).

In the automatic turning routine (step # 200), as shown in the flowchart of FIG. 12, when the storage position switch 43 is ON, it is determined that the unloader device A is at the storage position E, and the lifting motor is moved. 17, the horizontal conveyor 10 is driven upward by the set time to reach the upper limit, and then the turning motor 15 is driven to turn left by the set time when the unloader device A reaches the discharge position F to set the unloader device A to the discharge position F ( (Steps # 201 to # 207) If the storage position switch 43 is in the OFF state, the state of the clutch mechanism C is determined based on the signals of the determination switches 34 and 34, and the clutch mechanism C is in the on state. Only in this case, the clutch motor 31 is controlled to perform the disengagement operation of the clutch mechanism C to turn off the pilot lamp 39 (# 208 to # 208). 210 steps), the storage position switch 43 a right turn drive the swing motor 15 Following this
Is set to the ON state, and thereafter, the unloader device A is set to the storage position E by lowering and driving the elevating motor 17 for a set time during which the horizontal conveyor 10 is supported by the support portion 41. (# 211-# 2
16 steps). The control program (step # 209) for automatically disengaging the clutch mechanism C constitutes the forced disengagement operation means.

As shown in the flowchart of FIG. 13, the clutch control routine (step # 300) controls the clutch mechanism C only when the clutch switch 38 is turned ON while the storage position switch 43 is OFF. If it is determined from the signals from the determination switches 34, 34 that the clutch mechanism C is in the disengaged state, the clutch motor 31 is operated to activate the clutch mechanism C.
Is turned on, and the pilot lamp 39 is turned on. Conversely, if it is determined that the clutch mechanism C is in the on state, the clutch motor 31 is operated to turn off the clutch mechanism C. Then, the pilot lamp 39 is turned off (# 301 to # 30).
7 steps).

As described above, according to the present invention, by setting the clutch mechanism C to the on state and the off state by driving the clutch motor 31 by operating the clutch switch 38, the automatic switch 37 can be set. Since the posture of the unloader device A can be automatically switched between the storage position E and the discharge position F by the operation, it becomes possible to perform an easy turning operation without any trouble for the operator, and further, during the discharge of the grain. As described above, when the automatic switch 37 is operated when the clutch mechanism C is in the on state, the control device 44 controls the clutch motor 31 to automatically switch off the clutch mechanism C, so that the unloader device A is in the storage position. The kernels are not discharged to a position where they are not collected when turning toward. Also, when the control stick 36 is operated, the forcible disengagement operation of the clutch mechanism C is not performed.
By operating the control stick 36, the position of the outlet 11 can be finely adjusted.

[Other Embodiments] In addition to the above-described embodiment, the present invention provides, for example, a potentiometer for measuring the swing amount of the horizontal conveyor 10 around the X-axis center, and an operation in which the horizontal conveyor 10 is raised to a predetermined height. It is also possible to partially use a limit switch or the like for detecting an error. When such sensors are used in combination, accurate control can be performed. In the present invention, the position at which the attitude of the unloader device A is automatically set by operating the automatic switch 37 is set to two.
Although the setting has been made at the places, it is also possible to apply to the setting at three or more places.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is an overall plan view of the combine.

FIG. 3 is a vertical sectional side view of a grain tank bottom.

FIG. 4 is a cross-sectional plan view of the lower part of the vertical conveyor.

FIG. 5 is a side view of the upper end of a vertical conveyor.

FIG. 6 is a plan view schematically showing an arrangement of a clutch mechanism.

FIG. 7 is a side view schematically showing a clutch mechanism in an off state and an on state.

FIG. 8 is a plan view showing the arrangement of control sticks and the like.

FIG. 9 is a plan view showing the unloader device at a storage position and a discharge position.

FIG. 10 is a block circuit diagram of a control system.

FIG. 11 is a flowchart of a main control operation.

FIG. 12 is a flowchart of an automatic turning routine.

FIG. 13 is a flowchart of a clutch control routine.

[Explanation of symbols]

 6 Grain Tank 9 Vertical Conveyor 10 Horizontal Conveyor 15 Swivel Actuator 17 Elevating Actuator 37 Movement Switch 44 Controller A Unloader Y Y Vertical axis

Claims (2)

[Claims] An unloader device for feeding out the grains stored in a grain tank, a moving actuator for moving a grain discharging position by changing the posture of the unloader device, and the moving actuator based on an operation of a moving switch. A combine provided with a control device for controlling and moving a grain discharge position from the unloader device to a preset position, wherein, when the movement switch is operated, a movement actuator is actuated for a set time so that the grain is operated. A combine in which the control operation of the control device is set to move the discharge position to a preset position. 2. The unloader device sends the grains from the lower part of the grain tank upward by a vertical conveyor, and sends the grains sent to the upper end of the vertical conveyor in a substantially horizontal direction by a horizontal conveyor and conveys them. The moving actuator is configured to discharge from the end, and the moving actuator includes a turning actuator that turns the horizontal conveyor around a vertical axis, and a lifting actuator that moves up and down the transfer end of the horizontal conveyor. When the movement switch is operated to move the conveyor end of the conveyor from the storage position toward the front of the vehicle body to the discharge position toward the rear of the vehicle body, the elevation actuator is driven for a set time to move the conveyor horizontally. Before raising the conveyor, drive the swivel actuator for the set time to rotate the transport end of the horizontal conveyor to the discharge position. The combine according to claim 1, wherein the control operation of the control device is set.