JP2518925B2 - Ogre control device for grain discharge in combine harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to the operation of the turning actuator of the auger so as to automatically turn the grain discharging auger to a storage position or a discharging position with respect to the machine body. The present invention relates to a control device for an auger for discharging grain in a combine provided with an automatic control means for controlling.

[Conventional technology]

The grain discharging auger is placed in the storage position with respect to the fuselage while the combine is mowing or traveling on the road.

On the other hand, when the grains stored in the grain tank are discharged to a carrier or the like, the discharge work is performed after the auger is moved to a discharge position protruding laterally of the machine body.

Therefore, the operation may be simplified by automatically turning the auger with the storage position or the discharge position as the target position.

A conventional grain discharge auger control device for a combine combines an automatic / manual switch, a storage / discharge switch for switching between storage and discharge, and a setting device for setting a discharge position, thereby providing an auger. When moving to the discharge position set by the setting device, the automatic / manual changeover switch is automatically switched and the storage / discharge changeover switch is changed to discharge, so that the detection information of the turning position detection means and the set discharge position are set. Comparing with the above, the auger is automatically rotated to the set discharge position (see, for example, JP-A-62-70741).

[Problems to be Solved by the Invention]

According to the above-mentioned conventional technique, when it is desired to change the setting of the discharge position, the discharge position to be changed may be set by the setting device, but the detection information of the turning position detection means is for moving the auger to the set discharge position. However, when changing the setting to the desired discharge position, the operator estimates the turning amount of the auger from the storage position to the discharging position and responds to the estimated turning amount. In addition, whether or not the changed discharge position corresponds to the desired discharge position must be determined by actually rotating the auger to the changed discharge position. If it is not possible to confirm it and it does not move to the desired discharge position, there is a problem that work efficiency decreases because it is necessary to further finely adjust the set amount and rotate the auger again. There is a drawback that can not be accurately set the discharge position of the.

The present invention has been made in view of the above circumstances, and it is possible to automatically swivel and move an auger to a target discharge position that can be arbitrarily set, and further, to set the target discharge position accurately and appropriately. The purpose is to

[Means for solving the problem]

A first characteristic configuration of the present invention for achieving the above-mentioned object is to automatically swivel a grain discharging auger to a storage position or a discharging position with respect to a machine body by a command of an automatic swing commanding means, and a manual type. A control device for a grain discharging auger in a combine provided with an automatic control means for controlling the operation of the turning actuator of the auger so as to move the auger by a turning command of a turning command means, Position detection means for detecting the turning position of the auger with respect to the machine body is provided, and the automatic control means, in accordance with the setting command of the discharge position establishment command means, the detected value of the position detection means at that time is the target discharge for the machine body of the auger. It is configured to be set as a position, and the grain discharging auger is automatically swung to the discharging position with respect to the machine body by the command of the automatic swing command means. When to be, based on the comparison result between the detected information and the target discharge position of said position detecting means, to move the auger to the target discharge position, in that it is configured to actuate the actuator.

A second characteristic configuration is the same as the first characteristic configuration, wherein the control means reduces the turning movement speed of the auger when a difference between the detection information of the position detection means and the target discharge position becomes a predetermined value or less. It is configured to actuate the actuator.

[Work]

According to the first characteristic configuration, the auger is swung to an arbitrary discharge position by the swivel command of the manual swirl commanding means,
The detection value of the position detection means at that time is set as the target discharge position for the auger's machine body by the setting command of the discharge position setting command means.

Then, when the auger is swung to the set discharge position, the actuator is operated based on the comparison result of the detection information of the position detection unit and the target discharge position by the command of the automatic swing command unit, and the auger is moved to that position. It automatically turns to the set target discharge position.

To add an explanation, the combine stores the grain that has been mowed along with traveling in the tank, and when the stored grain becomes full, it is run near the transportation vehicle stopped at the edge of the ridge,
It is necessary to perform the mowing work while repeating the procedure of turning the auger to the discharging position and discharging the grain to the carrier, but when turning the auger to discharge the grain to the carrier, Since the turning position can be set as the target discharge position, at the time of next grain discharge, if the combiner is stopped so that it has the same positional relationship as the previous time with respect to the carrier, the auger will be at the proper position with respect to the carrier. It will be able to automatically turn.

According to the second characteristic configuration, when the difference between the detection information of the position detecting means and the target discharge position becomes equal to or less than the predetermined value, the turning movement speed of the auger becomes small.

〔The invention's effect〕

The apparatus for manufacturing a grain discharging auger in the combine of the first characteristic configuration can automatically swivel the auger to a target discharging position that can be arbitrarily set, and moreover, the target discharging position can be set accurately and appropriately. You can do it.

The control device for the grain discharging auger in the combine of the second characteristic configuration is easy to automatically and accurately move the auger to an arbitrary discharging device in addition to the effect of the first characteristic configuration.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 5 and FIG. 6, in the combine, a mowing part (2) is provided at the front part of a vehicle body (V) including a pair of left and right crawler traveling devices (1), and the mowing part (2) is provided. On the rear side of the control section (3), a threshing device (4) for threshing the grain culms cut by the mowing section (2) and sorting and collecting the grains,
Also, a grain tank (5) for storing grains sorted and recovered by the threshing device (4) is mounted.

An auger (6) for discharging the grains stored in the grain tank (5) out of the machine is provided on the rear side of the grain tank (5) so as to be pivotable and vertically movable. Have been.

In FIG. 5, (E) is an engine, (7) is a receiving tool for supporting the auger (6) in a state where the auger (6) is received and placed in the storage position (the state shown in FIG. 6), (8). ) Is a manually operated lock device for fixing the auger (6) in a state of being mounted on the receiving tool (7).

A description will be given of a grain transport structure from the grain tank (5) to the auger (6). A bottom screw conveyor that transports the grain in the tank to the rear side of the machine is provided at the bottom of the grain tank (5). (9) is provided, and a vertical screw conveyor (10) is provided for lifting the grain from the transport end of the bottom screw conveyor (9) to above the grain tank (5), and At the upper end of the vertical screw conveyor (10), there is provided a horizontal screw conveyor (11) that conveys the grains to be fed toward the discharge port (6a) formed at the tip side of the auger (6). There is.

However, although not described in detail, each of the bottom screw conveyor (9), the vertical screw conveyor (10), and the horizontal screw conveyor (11) uses a bevel gear or the like to integrally rotate their shafts. As such, they are interlocked and connected inside the auger (6). An input pulley (12) for rotationally driving the bottom screw conveyor (9) is provided at an end of the grain tank (5) on the front side of the machine body, which is on the transfer side of the bottom screw conveyor (9). Has been.

The turning operation structure of the auger (6) will be described. As shown in FIG. 3, the connection case (11A) connected to the base end of the horizontal screw conveyor (11) is connected to the vertical screw conveyor (10). ) Is rotatably fitted around a vertical axis (Y) coinciding with the screw axis of the vertical screw conveyor (10).

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 a gear (15) that meshes with the turning drive gear (14) is fixedly provided to the vertical screw conveyor (10), and thus, As the electric motor (16) is driven forward and backward,
The auger (6) is configured to rotate about the vertical axis (Y) and to stop as the electric motor (16) is stopped.

In the figure, (Ry) is a turning position detecting sensor as a position detecting means using a multi-rotation type potentiometer for detecting the turning position of the auger (6), which is driven by the electric motor (16). The turning gear (14) is rotated simultaneously with the turning gear (15).

However, as shown in FIG. 4, the turning electric motor (16) has a left-hand and right-hand sides of a preset turning range based on the detection information of the pair of limit switches (L ₁ ) and (L ₂ ). When the limit of is reached, it is automatically stopped.

Explaining the lifting / lowering operation structure of the auger (6), as shown in FIG. 3, the base end of the horizontal screw conveyor (11) is located at the upper end of the connection case (11A), and is located at the vertical axis. It is also rotatably mounted around a horizontal axis (X) intersecting with (Y). Then, the base end of the horizontal screw conveyor (11) and the connection case (11
A lifting hydraulic cylinder (17) is provided between
Therefore, the auger (6) is operated to be raised as the hydraulic cylinder (17) is extended, and the auger (6) is operated to be lowered as the hydraulic cylinder (17) is contracted. Has become.

In the figure, (L ₃ ) is an upper limit switch for detecting the upper limit position of the auger (6), and (S ₈ ) is the auger (6).
The storage position detection switch for detecting that the turning position of the switch is in the storage position (T), and (29) is a contact plate for contacting with the limit switches (L ₁ ) and (L ₂ ).

As shown in FIG. 6, the storage position (T) and the discharge position (P) are set. Then, an operating section having an auto switch (S ₅ ) which is an automatic turning command means for automatically turning the auger (6) to the storage position (T) or the discharge position (P) in the control section (3). (25) is provided (see FIG. 1). That is, the auger (6)
When the automatic switch (S ₅ ) is turned on when the vehicle is in the storage position (T), the auger (6) automatically turns to the designated discharge position (P). . The discharge position (P) can be set by a discharge position setting switch (S ₇ ) which is a discharge position setting command means. On the other hand, when the auger (6) is in a position other than the storage position (T), the auger (6) automatically moves to the storage position (T) when the auto switch (S ₅ ) is turned on. It is designed to move back.

Next, a control configuration for automatically turning the auger (6) to the storage position (T) or the discharge position (P) with respect to the machine body (V) will be described.

As shown in FIG. 1, based on the information of the auto switch (S ₅ ) and the position detection sensor (Ry) of the operation section (25), the turning electric motor (16) and the lifting hydraulic cylinder ( A control device (H) utilizing a microcomputer for controlling the operation of 17) is provided.

The turning position of the auger (6) with respect to the body (V) is
It is detected as the voltage value (Vx) of the turning position detection sensor (Ry). The detection value (Vx) increases as the auger (6) turns to the right. And auger (6)
The detected value when is located at the storage position (T) is set and stored as the storage target value (V _T ). The target value (V _T ) can be finely adjusted by the storage position adjusting potentiometer (Rm). The detection value is made to be able to switch setting by said discharge position setting switch as a discharge target value (V _P) (S ₇₎ when the auger (6) is located at the discharge position (P).

That is, when turning the auger (6) to the target positions (T) and (P), the detection value (Vx) of the position detection sensor (Ry) matches the target values (V _T ) and (V _P ). The electric motor (16) is driven as described above.

Further, when the auger (6) approaches the target positions (T) and ( _P ) and the difference between the detection value (Vx) and the target values (V _T ) and (V _P ) becomes a predetermined value (D) or less. The driving speed of the electric motor (16) is reduced.

In FIG. 1, (S ₆ ) is an emergency stop switch, (26) is an indicator lamp indicating that the auger (6) is in the retracted position (T), and (27) is the drive of the electric motor (16). circuit,
(25) is a control valve for the hydraulic cylinder (17).

Further, the auger (6) is constructed so that it can be turned and moved up and down manually, and four push-button type manual switches (S) for individually instructing each of ascending, descending, left turning and right turning. _{1 to} S ₄ are provided, and the manual switches (S ₁ , S ₂ ) are configured as a manual turning command means.

That is, the control device (H) is used to configure an automatic control means (100) for controlling the operations of the electric motor (16) and the cylinder (17).

Next, the operation of the control device (H) will be described based on the flowcharts shown in FIGS. 2 (a), 2 (b) and 2 (c).

When the control is activated, first, it is determined whether or not the auto switch (S ₅ ) is turned on.

If it is not turned on, the manual switch (S ₁
To S ₄ ) The manual mode is entered to check whether or not the manual operation is performed.

If the auto switch (S ₅ ) is turned on,
The storage position detection switch (S ₈ ) is checked to detect whether the auger (6) is in the storage position (T).

When the auger (6) is in the storage position (T), it is moved to the discharge position (P) set by the discharge position setting switch (S ₇ ) or when it is in a position other than the storage position (T). Will be swiveled to the storage position (T) respectively. However,
When the auger (6) is not at the upper limit position, the auger (6) is raised to the upper limit before turning.

Also, the detected value (V _X ) at that position and the target set value (V _T ),
The turning direction is selected based on the magnitude relationship with ( _VP ), and the electric motor (16) is operated in the direction approaching the target position. Further, after approaching the target position to some extent, the turning speed is decelerated. The control is stopped when the target position is not reached even after a lapse of a predetermined time.

After reaching the target position, the cylinder (17) is driven for a predetermined time to lower the auger (6).

[Another embodiment]

In the above embodiment, the case where the turning range of the auger is limited has been described, but the present invention can also be applied to the case where the auger can be turned completely.

Further, in the above embodiment, the potentiometer was used as the position detecting means (Ry), but the concrete configuration of each part such as using a pulse encoder can be variously changed.

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

[Brief description of drawings]

The drawings show an embodiment of a control device for a grain discharging auger in a combine according to the present invention, FIG. 1 is a block diagram of a control configuration, and FIGS. Fig. 3 is a flowchart, Fig. 3 is a side view of an essential part showing an operating structure for turning and raising / lowering an auger, Fig. 4 is a plan view of an essential part of a vertical screw conveyor, Fig. 5 is an overall side view of a combine, and Fig. 6 is the same plane. It is a figure. (S ₁ , S ₂ ) ... manual turning command means, (S ₅ ) ... automatic turning command means, (S ₇ ) ... discharging position setting command means (S ₇ ), (D) ... predetermined value , (6) …… Ogre, (16)
...... Turning actuator, (100) …… Control means,
(V): Airframe, (Ry): Position detection means.

Claims (2)

(57) [Claims] 1. The automatic turning command means (S ₅ ) automatically turns the grain discharging auger (6) to a storage position or a discharging position with respect to the machine body (V), and a manual turning. An automatic control means (100) for controlling the operation of the turning actuator (16) of the auger (6) so as to turn the auger (6) by a turning command of the command means (S ₁ , S ₂ ). A control device for an auger for discharging grain in a combine, which is provided with position detection means (Ry) for detecting a turning position of the auger (6) with respect to the machine body (V), and the automatic control means (100). Is configured to set the detection value of the position detection means (Ry) at that time as a target discharge position for the fuselage (V) of the auger (6) by a setting command of the discharge position setting command means (S ₇ ). The automatic turning command means (S ₅ ) Command to automatically turn the grain discharging auger (6) to the discharging position with respect to the machine body (V), the result of comparison between the detection information of the position detecting means (Ry) and the target discharging position. A control device for a grain discharging auger in a combine, which is configured to operate the actuator (16) so as to move the auger (6) to a target discharging position. 2. The control means (100) controls the turning movement speed of the auger (6) when the difference between the detection information of the position detection means (Ry) and the target discharge position becomes a predetermined value (D) or less. The grain auger control device for a combine harvester according to claim 1, which is configured to operate the actuator (16) in order to reduce the size.