JP2669966B2 - Control device for grain discharge auger in combine harvester - Google Patents

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,
In a predetermined pivoting range relative to the machine body of the auger, and,
A control area is provided in a range less than the set height, and the control means for operating the turning actuator and the lifting actuator of the auger based on a command from the operating means includes the turning position detecting means and the lifting position detecting means. the auger according to the detected information regarding the control device of grain discharge auger at combine that is configured to prohibit the operation of the turning actuator and penetrates into the restriction region.

[0002]

2. Description of the Related Art The auger as described above is used for discharging the grains stored in the grain tank to a carrier or the like.
By the way, it is general that the maneuvering section is present in the movable range of the auger. Therefore, a control area that prohibits the invasion of the auger is provided around the control unit , and
In order to prohibit the turning of the auger, the turning side of the auger
There is a regulation range on the auger and the auger is below the set height (upper limit height).
Turns within its regulation range when not raised
To ensure the safety of workers
(For example, JP-A-3-22917)
reference).

[0003]

The object of the invention is to be Solved However, the above-mentioned slave
In conventional control, the auger is allowed to enter the regulated area.
Even if it is prohibited, for example, if it falls within the regulation range on the turning side.
If the turning operation is stopped immediately before
The inertia may cause the auger to enter the regulated area.
In this case, remove the auger from the regulated area properly.
Need to be done. The present invention has been made in view of the above circumstances.
Be those, Its purpose, auger enters the restricted area
The auger intrudes into the regulated area while avoiding
Can be properly removed from the regulated area
Thus, the operability of the auger is improved.

[0004]

A solution for the order to achieve this object, characteristic feature of the grain control of the discharge auger at Combine according to the present invention, the control means, the regulating territory
Within the region, the lifting actuator is allowed to operate on the rising side.
In this state, the operation on the descending side is prohibited, and the turning actuator is provided in the boundary regions at both ends of the predetermined turning range.
It is that it is configured to permit the pivoting of the side away from the restricting area.

[0005]

[Operation] When the auger enters the restricted area,
The auger can be moved out of the regulated area by raising it.
With, when the auger has penetrated across the boundary region of a predetermined swiveling range of regulatory regions can be issued by pivoting the auger to the side away from the restricted region, the auger out of the restricted region .

[0006]

Therefore, for example, due to inertia during turning operation,
Said if the auger enters the regulatory area, the rise operation Te
Therefore, the auger can be properly put out of the regulated area,
In the boundary area at both ends of the predetermined turning range, for example, the ceiling or the like.
There are obstacles and you can't raise the auger
In such a case, while suppressing the auger from entering the restricted area deeper, by turning the auger, the auger can be taken out of the restricted area.
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 provided with a pair of left and right crawler traveling devices 1, and a control unit 3, on the 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. .
Then, 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.

The turning operation structure of the auger 6 will be described. As shown in FIG. 6, a connection case 11A connected to the base end of the horizontal screw conveyor 11 is provided at the upper end of the vertical screw conveyor 10 at the upper end thereof.
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 the electric motor 16 is driven in the forward and reverse directions. Along with the auger 6
Is rotated around the vertical axis Y, and the rotation 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 a preset turning range are reached, the stop is automatically stopped.

Explaining the lifting operation structure of the auger 6, as shown in FIG. 6, the base end portion of the horizontal screw conveyor 11 has a horizontal axis core intersecting with the vertical axis Y at the upper end of the connection case 11A. It is also pivotally attached around X. And 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, 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 drive of the electric motor 16 for turning and the hydraulic cylinder 17 for elevation. The operation section 25 will be described in detail. As shown in FIG. 1, four push-button type manual switches for individually instructing each of left turn, right turn, ascent, and descent while pushing is being performed. 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. By operating this switch S5, the automatic switch 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 in the storage position, and is lit when the auger 6 is in the storage position. Also, S
7 is a discharge position setting volume for setting a voltage value Vs described later at the discharge position, S6 is a stop switch for making an emergency stop of the auger 6, 27 is a drive circuit for the electric motor 16, and 28 is a control valve for 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 preset information and various input information. That is, as described above, the operation unit 2
5. Move the auger 6 to the machine body V with the manual switches S1 to S4
Operation means for instructing commands for turning and lifting operations
M is configured, and based on a command from the operating means M,
Actuating the electric motor 16 and the hydraulic cylinder 17
The control means 100 according to the present invention 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 turned and moved up and down by operating the manual switches S1 to S4 within a movable range. I have.
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. Regulated area K is for auger 6
A predetermined turning range A near the control unit 3 which is a predetermined turning range with respect to the machine body V , and an area less than the upper limit height as the set height . Further, boundary regions A1 and A2 are set at both ends of the predetermined turning range A. The voltage value Vx of the detection sensor Ry when the auger 6 is located at the boundary between the boundary areas A1 and A2 is preset and stored. When the voltage values are arranged in ascending order, VL1, VL2, VR2, VR
It becomes 1. The voltage value Vx at the storage position is set to V
h, and the voltage value Vx at the discharge position is Vs. In regulatory region K, basically turning and under the auger 6
It is prohibited to descend . However, in the boundary areas A1 and A2, turning in a direction away from the restriction area K is allowed. That is, a right turn is permitted at A1 and a left turn is permitted 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, the automatic turning mode is started if the voltage value Vx of the detection sensor Ry is substantially equal to Vh, and the automatic storage mode is started if they are not equal. The operation in the manual mode will be described. Left turn switch S1
When is ON, a left turn output 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, the left turn is output. Right turn switch S
When 2 is ON, right turn output is made 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 rising output is once output until the upper limit switch L3 is turned ON, and then the turning output is output until the discharge position is reached. In the automatic storage mode, the ascending output is once output until the upper limit switch L3 is turned on, and then the swivel output is performed until the storage position is reached. When the storage position is reached, 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.

From the above, the control means 100 is
Rotation position detection sensor Ry and the upper limit switch L
Based on the detection information of No. 3, the auger 6 controls the regulation area K
If the operation of the electric motor 16 is prohibited when entering the inside,
Both of the hydraulic cylinders 17 within the regulation area K are
Prohibit the operation of the descending side while allowing the operation of the ascending side,
In addition, boundary regions A1 and A2 at both ends of the predetermined turning range A
Then, the electric motor 16 is separated from the regulation area K.
It will be configured to allow turning to the side. [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. Various changes can be made to the specific configuration of each unit.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

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

FIG. 2 is a flowchart of a control operation;

FIG. 3 is a flowchart of a control operation.

FIG. 4 is a flowchart of a control operation.

FIG. 5 is a flowchart of a control operation.

FIG. 6 is an enlarged side view of a main part showing an operation configuration of turning and elevating the auger.

[Figure 7] Plan view of the main part 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 Border area V Airframe M Operating means K Restricted area Ry Turning position detecting means L3 Lifting position detecting means

Claims (1)

(57) [Claims] 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 a turning of the auger (6) with respect to the body (V). a turning position detecting means for detecting a position (Ry), the vertical position detecting means and (L3) is provided to detect the vertical position relative to the machine body (V) of the auger (6), wherein the machine body of the auger (6) Predetermined turning range for (V) (A)
In addition, the regulation area (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) based on a command from the operating means (M). ) Operating control means (10
0), when the auger (6) enters the restricted area (K) based on the detection information of the turning position detecting means (Ry) and the elevation position detecting means (L3), the turning actuator (16). a grain control device for the discharge auger at combine configured to prohibit operation of said control means (100), within the regulatory region (K) is
Allowing the lifting actuator (17) to operate on the rising side
In this state, the operation on the descending side is prohibited, and in the boundary regions (A1) and (A2) at both ends of the predetermined turning range (A).
An apparatus for controlling a grain discharging auger in a combine configured to allow the swiveling actuator (16) to swivel away from the regulation area (K).