JPH0515245A - Controller of auger for grain discharge in combine - Google Patents

Abstract

PURPOSE:To obtain a device having a control means capable of operating an actuator by direction of an operating means for directing turning and lifting and lowering of an auger for grain discharge, turning position detection means, lifting and lowering position detection means and operation means and enhanced in operational characteristics of the auger. CONSTITUTION:An operation means for directing direction for subjecting an auger 6 for grain discharge to turning and lifting and lowering operation to a machine body V, turning position detection means Ry for detecting turning position of a auger 6 to the machine body V and lifting and lowering position detection means L3 for detecting lifting and lowering position of the auger 6 to the machine body are provided and a regulation area K is provided in prescribed turning range A of the auger 6 to the machine body V and range lower than set height and when the auger 6 enter the regulation area according to information of position detection means by a control means for operating a turning actuator 16 and lifting and lowering actuator 17 of the auger 6 based on direction from an operating means M, the controller controls so as to inhibit operation of the turning actuator 16 and inhibit operation on lowering side in a state permitting operation on raising side of actuator 17 for lifting and lowering.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating means for instructing a command for turning and raising and lowering a grain discharging auger with respect to a body, and a turning position detecting means for detecting a turning position of the auger with respect to the body. A lift position detecting means for detecting a lift position of the auger with respect to the machine body is provided,
A control area is provided in a predetermined turning range with respect to the body of the auger, and within a range less than a set height, and a control means for operating the turning actuator and the lifting actuator of the auger based on a command from the operating means. When the auger enters the restricted area based on the detection information of the turning position detecting means and the ascending / descending position detecting means, the operation of the turning actuator is prohibited, and the lifting side operation of the lifting actuator is performed. The present invention relates to a grain discharge auger control device in a combine, which is configured to prohibit the operation on the descending side in an allowable state.

[0002]

2. Description of the Related Art The auger as described above is used for discharging the grains stored in a grain tank to a carrier or the like.
By the way, it is general that a maneuvering section exists in the movable range of the auger. Therefore, it is conceivable to provide a restricted area around the control unit to prohibit the auger from entering to ensure the safety of the worker. Here, it is conceivable that the turning of the auger is completely prohibited in the restricted area.

[0003]

When the auger enters the regulation area as it turns, the auger is stopped. In such a case, in the above-mentioned conventional technique, since the auger can only be raised, the operation of the auger becomes inconvenient. An object of the present invention is to eliminate the above-mentioned conventional drawbacks and improve the operability of the auger.

[0004]

In order to achieve this object, the control device for the grain discharging auger in the combine according to the present invention is characterized in that the control means has the above-mentioned structure in the boundary regions at both ends of the predetermined turning range. That is, it is configured to allow the turning to the side away from the restricted area.

[0005]

When the auger enters the boundary areas at both ends of the predetermined turning range in the regulation area, the auger can be moved out of the regulation area by turning the auger to the side away from the regulation area.

[0006]

When the auger enters the restricted area, the auger is swung to prevent the auger from moving out of the restricted area while the auger is prevented from entering the restricted area further deeply. Therefore, the operability of the auger can be improved.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 8 and FIG. 9, in the combine, a mowing unit 2 is provided in the front part of a body V having a pair of left and right crawler traveling devices 1, and a control unit 3, a rear side of the mowing unit 2, is provided.
A threshing device 4 that threshes the culms cut by the reaping unit 2 to selectively collect and collect grains, and a grain tank 5 that stores the grains that are selectively collected by the threshing device 4 are mounted. ..
An auger 6 for discharging the grains stored in the grain tank 5 to the outside of the machine is provided on the rear side of the grain tank 5 so as to be rotatable and movable up and down.

Explaining the turning operation structure of the auger 6, as shown in FIG. 6, a connection case 11A connected to the base end portion of the horizontal screw conveyor 11 is provided at the upper end portion of the vertical screw conveyor 10.
It is rotatably fitted around a vertical axis Y which coincides with the screw axis. A gear 14 for turning drive is fixed to the outer surface of the connection case 11A. A turning electric motor 16 as a turning actuator that rotationally drives the gear 15 that meshes with the turning driving gear 14 is fixedly provided on the vertical screw conveyor 10, and thus drives the electric motor 16 in the forward and reverse directions. Along with the auger 6
Is rotated around the vertical axis Y and is stopped when the electric motor 16 is stopped. In the figure, Ry is a turning position detecting sensor as a turning position detecting means using a multi-rotation type potentiometer for detecting the turning position of the auger 6, and the turning drive is performed by a gear 15 driven by the electric motor 16. The gear 14 is rotated simultaneously with the gear 14. However, as shown in FIG. 7, the electric motor 16 is
Based on the detection information of the pair of limit switches L1 and L2, when the left and right limits of the preset turning range are reached, the stop is automatically stopped.

Explaining the raising / lowering operation structure of the auger 6, as shown in FIG. 6, the base end of the horizontal screw conveyor 11 has a horizontal axis core intersecting the vertical axis Y at the upper end of the connection case 11A. It is also pivotally attached around X. And with the base end of the horizontal screw conveyor 11,
An elevating hydraulic cylinder 17 as an elevating actuator is provided between the connecting case 11A, and the auger 6 is moved upward as the hydraulic cylinder 17 is extended, and the hydraulic cylinder 17 is contracted. Attendantly, the auger 6 is lowered. L3 in the figure
Is an upper limit switch as an ascending / descending position detecting means that is turned on when the auger 6 is at the upper limit position, and 29 is a contact plate that contacts the limit switches L1 and L2.

The control section 3 is provided with an operation section 25 having a plurality of manually operated switches for instructing the driving of the electric motor 16 for turning and the hydraulic cylinder 17 for elevation. If the operation unit 25 is further described, as shown in FIG. 1, four push button type manual switches for individually instructing each of left turning, right turning, ascending, and descending only during a pressing operation. S1 to S4 are provided. That is, the manual switches S1 to S4 correspond to the operating means M. The position of the auger 6 can be automatically moved to the storage position or the discharge position. In the figure, S5 is an automatic switch for that purpose, and by operating this switch S5, it is automatically moved to the discharge position when the auger 6 is in the storage position, and to the storage position when the auger 6 is in a position other than the storage position. It can be moved. Further, reference numeral 26 is a lamp for indicating whether or not the auger 6 is at the storage position, and is lit when the auger 6 is at the storage position. Also, S
7 is a discharge position setting volume for setting a later-described voltage value Vs at the discharge position, S6 is a stop switch for emergency stop of the auger 6, 27 is a drive circuit of the electric motor 16, 28 is a control valve of the cylinder 17. is there.

Next, a control structure for turning and raising and lowering the auger 6 will be described. As shown in FIG. 1, a control device H using a microcomputer is provided, and each switch of the operation unit 25, the limit switches L1, L2, L3, and the position detection sensor Ry are connected to the control device H. ing. Then, the control device H is configured to operate the electric motor 16 and the hydraulic cylinder 17 based on information preset and stored and various input information. That is, the control means 100 is configured using the control device H.

The operation of the auger 6 by the manual switches S1 to S4 will be described. As shown in FIG. 7, the auger 6 is constructed so that it can be swung and moved up and down by operating the manual switches S1 to S4 within a movable range. There is.
The turning position of the auger 6 with respect to the machine body V is detected as the voltage value Vx of the turning position detection sensor Ry. The voltage value Vx
Is larger as the auger 6 turns to the right. However, as shown in FIGS. 7 and 9, the restriction region K is set within the movable range. The restricted area K is an area within a predetermined turning range A near the control section 3 and less than the upper limit height. Further, at both ends of the predetermined turning range A, boundary regions A1, A
2 is set. The auger 6 is the boundary area A.
The voltage value Vx of the detection sensor Ry when it is located at the boundary between 1 and A2 is set and stored in advance. When the voltage values are arranged in ascending order, they become VL1, VL2, VR2 and VR1. The voltage value Vx at the storage position is Vh, and the voltage value Vx at the discharge position is Vs. Regulated area K
In, basically, turning and raising of the auger 6 are prohibited. However, in the boundary areas A1 and A2, turning in the direction away from the restriction area K is allowed.
That is, turning to the right is permitted at A1 and to the left at A2.

Next, the operation of the controller H will be described with reference to the flow charts shown in FIGS. First,
The input of the operation unit 25 is checked to determine the operation mode. If the manual switches S1 to S4 are turned on, the manual mode is started, and if the automatic switch S5 is turned on, the automatic turning mode or the automatic storage mode is started. By the way, when the automatic switch S5 is turned on, if the voltage value Vx of the detection sensor Ry is substantially equal to Vh, the automatic turning mode is started, and if not equal, the automatic storage mode is started. The operation in the manual mode will be described. Left turn switch S1
When is ON, the counterclockwise rotation is output until the limit switch L1 is turned ON. However, when the voltage value Vx is between VL2 and VR1, the upper limit switch L3
Only when is ON, a left turn output is made. Right turn switch S
When 2 is ON, the right turn is output until the limit switch L2 is turned ON. However, the voltage value Vx is VL1.
And VR2, the upper limit switch L
Only when 3 is ON, a right turn output is made. Lift switch S
When 3 is ON, the output is increased until the upper limit switch L3 is turned ON. When the down switch S4 is ON, the down output is made. However, the voltage value Vx is VL1.
And between VR1 and VR1, the falling output is prohibited.
In the automatic turning mode, the ascending output is output until the upper limit switch L3 is turned on, and then the turning output is performed until the discharge position is reached. In the automatic storage mode, the ascending output is output until the upper limit switch L3 is turned on, and then the swivel output is performed until the storage position is reached. When it reaches the storage position, the output is lowered for a predetermined time. During this predetermined time, it is checked whether or not the voltage value Vx is substantially equal to Vh, and if they are not equal, the swing output is made to be equal.

[Other Embodiments] In the above embodiment, the limit switch is used as the ascending / descending position detecting means L3 to detect only the upper limit position. However, for example, the stroke length of the hydraulic cylinder is detected by a linear encoder. The specific configuration of each unit can be changed in various ways.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a block diagram of a control configuration.

FIG. 2 is a flowchart of control operation.

FIG. 3 is a flowchart of control operation.

FIG. 4 is a flowchart of control operation.

FIG. 5 is a flowchart of control operation.

FIG. 6 is an enlarged side view of an essential part showing an operation configuration for turning and raising / lowering an auger

[Figure 7] Plan view of the main parts of the vertical screw conveyor

FIG. 8 is an overall side view of the combine.

FIG. 9 is an overall plan view of the combine.

[Explanation of symbols]

 6 Auger 16 Turning actuator 17 Lifting actuator 100 Control means A Predetermined turning range A1, A2 Boundary area V Airframe M Operating means K Restriction area Ry Turning position detecting means L3 Lifting position detecting means

Claims (1)

Claim: What is claimed is: 1. An operating means (M) for instructing a command for turning and raising and lowering a grain discharging auger (6) with respect to a body (V), and the auger (6). A turning position detecting means (Ry) for detecting a turning position with respect to the machine body (V) and a raising and lowering position detecting means (L3) for detecting a raising and lowering position of the auger (6) with respect to the machine body (V) are provided. In the predetermined turning range (A) with respect to the aircraft (V) of (6),
In addition, a regulation region (K) is provided in a range less than the set height, and the turning actuator (16) and the lifting actuator (17) of the auger (6) are operated based on a command from the operating means (M). Control means to operate (100)
However, based on the detection information of the turning position detecting means (Ry) and the ascending / descending position detecting means (L3), the auger (6)
When entering the restricted area (K), the operation of the turning actuator (16) is prohibited, and the operation of the descending actuator (17) is prohibited in the state of permitting the ascending side operation. A controller for a grain discharging auger in a combine configured as described above, wherein the control means (100) controls the boundary regions (A1) and (A2) at both ends of the predetermined turning range (A). A control device for a grain discharging auger in a combine, which is configured to allow turning to a side away from the region (K).