JPS63313523A - Apparatus for automatic displacement of discharge position of auger of combine - Google Patents

Abstract

PURPOSE:To enable sure setting of an auger at a discharging set position, by performing only the lifting of the auger and the turning of auger toward the operation position in the automatic discharge of auger and lowering the auger by a manual switch during the turning of the auger. CONSTITUTION:The objective apparatus is provided with an automatic switch managing the operation and stop of a means for transferring an auger to an automatic discharge position, a manual switch to operate a means for the vertical transfer of auger and a means for turning the auger and a means to inhibit the operation of the means for transferring the auger to the automatic discharge position when the manual switch is operated to lower the auger. In the automatic discharge of an auger 26, only the lifting of auger and turning of auger toward the operation position are carried out. The auger is lowered by the manual switch when an operator has confirmed by visual observation that the turning auger is positioned to a prescribed position.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an automatic auger discharge position moving device for moving a grain discharge auger of a grain tank provided in a combine harvester from a storage position inside the machine body to a grain discharge work position. .

"Prior art" Conventionally, as shown in Japanese Utility Model Publication No. 81-12193,
There is a technique for setting the destination of the auger at a desired position by matching the auger setting position using a setting dial and the auger detection position using a potentiometer.

[Problems to be Solved by the Invention] The above-mentioned conventional technology is expensive to manufacture because it uses a potentiometer whose control is complicated, and when the auger is retracted, the destination is determined by the position of the auger rest. , the discharge position varies depending on the operating conditions (for example, the arrangement 21 of the truck or trailer for receiving discharged grain). If this is set using a setting dial, it is difficult for the operator to accurately set the desired position because the operator does not have to know the correspondence between the actual setting position and the dial. In particular, if the dial settings are incorrect and the auger is rotated over the driver's seat of the truck instead of on the truck bed and the lowering operation is started, a major failure will occur.

``Means for Solving the Problems'' However, the present invention provides a grain tank, an auger that can be discharged from the grain tank to the outside of the machine, an auger vertical movement means that moves the auger up and down, and an auger rotation that moves the auger horizontally. a moving means;
In a combine harvester equipped with automatic discharge position moving means for sequentially specifying the operations of the auger lifting means and rotation means to move the auger toward the working position, an automatic switch that controls the operation stop of the automatic discharge position moving means. The present invention is characterized by a manual switch for the auger vertical movement means and rotation means, and means for prohibiting the operation of the automatic discharge position moving means when the manual switch is lowered.

``Function'' Therefore, when the auger is automatically discharged, only the auger is moved upward and the auger is rotated in the direction of the working position, and while the auger is rotating, visually confirm that the operator has arrived at the desired position, and then press the manual switch. By performing the lowering operation, the auger discharge set operation is canceled and the auger can be reliably and safely set at the discharge set position.

"Example" An embodiment of the present invention will be described below in detail with reference to the drawings.

Fig. 1 is a control circuit diagram, Fig. 2 is an overall side view of the combine harvester, and Fig. 3 is a plan view of the same. Frame, (3
) is a machine base fixedly supported on the truck frame (1);
(4) has the foot chain (5) stretched on the left side and the handling trunk (8).
) is a built-in threshing unit, (7) is a hydraulic cylinder (8)
The cutting blade (
8) and a culm conveying mechanism (10), etc., a reaping section (
11) is a part of the ui straw cutter that faces the end of the straw removal chain 7 (12) connected to the end of the foot chain (5);
(13) is the engine part that drives each part of the combine, (
14) is a grain tank that stores the grains to be taken out from the threshing section (0) facing the grain lifting cylinder (15), (16) is the driver's seat (17)
) and a driving operation section (18), the driver's cab is configured to continuously reap grain culms in the reaping section (7) and to thresh the cut husk in the threshing section (4). It consists of

As shown in FIG. 4, the grain tank (14) has a grain cross-feeding auger (19) at the bottom and a vertical discharge auger (19) at the rear for vertically feeding the grains from the cross-feeding auger (13). 2
0), further provided with a horizontal discharge auger (21) at the top for taking out the grains from the vertical discharge auger (20) to the outside of the machine, and centered on the auger tube (22) of the auger (20), which is the vertical axis. The grain tank (14) is provided so as to be rotatable outward, and the lower end shaft portion (23a) of the drive transmission case (23) between the horizontal feed auger (19) and the vertical discharge auger (20) is connected to the grain tank (14). The bearing member (24) of the stand (3) also has a vertical discharge auger (20
The middle of the auger cylinder (22) of the grain tank (10) is rotatably supported by the cylinder support member (25) on the front wall of the engine part (13), and the front side of the grain tank (10) is configured as a part that opens outward. are doing.

As shown in FIGS. 5 to 7, the horizontal discharge auger (21
) is connected and supported by the auger tube (22) of the vertical discharge auger (20) so as to be movable vertically and horizontally, and a rotating flange is provided at the upper end of the vertical discharge auger tube (22). (27) is fitted and supported, and the intermediate flange (28) is fixedly supported on the upper end of the flange (27), and the lateral discharge auger t'J is fixedly supported on the upper end of the 7 langes (28).
The base end flange portion (28) of (2B) is connected and supported so as to be movable up and down, and a horizontal transfer auger (30) is provided in the intermediate flange (28), and a vertical and vertical connection is provided through the horizontal transfer auger (30). Lateral discharge augers (20) and (21) are interlocked and connected.

Also, a gear (31
), and a small diameter gear (32) meshing with the gear (31) in a bevel manner is connected to two electric motors (
34) It is interlocked and connected to (35), and the transmission shaft (
33) is pivotally supported by a gear case (3G) fixedly installed on the machine side, the gear case (36) is equipped with a pair of worm wheels (37) and a worm gear (38), and the worm is attached to the transmission shaft (33). The wheel (37) is engaged and supported, and each output shaft (3) of the electric motor (34) (35) is
9) Attach the gear shaft (41) of the worm gear (38) to (40).
Both ends are connected via joints (42) and (43), and two electric motors (34 and 35) are used to make seven lunges (27) and (28) respectively around the vertical discharge auger tube (22).
The horizontal discharge auger cylinder (2G) is horizontally rotated from side to side through the horizontal discharge auger tube (2G).

Furthermore, the flange portion (2B) of the horizontal discharge auger tube (2B)
8) is provided with a horizontal pipe (46) having one end fixedly fixed to the intermediate flange (28) and the other end supported by the intermediate flange (28) so as to be vertically swingable via a shaft (44) and a swinging arm (45). A hydraulic cylinder (28) is supported via a shaft (47).
48) of the piston rod (Il+) into the pipe (
46) via the shaft (51), and the tip of the lateral discharge auger cylinder (2B) is moved up and down about the flange (28) by the expansion and contraction operation of the hydraulic cylinder (48). It is configured as follows.

Further, on the outside of the rotation flange (27), the flange (
27) A regulation protrusion (52) which is a regulation part that regulates the rotation of the
is provided, and the protrusion (52) is brought into contact with a pair of limit switches (53) and (54) that detect the right and left rotation ends of the flange (27) via a single-shaped operating fitting (55). It is designed to allow you to The switch (53) (5
4) is installed so that its actuator parts (57) and (58) are facing each other via a switch stand (56) fixed to the machine side.
8) Central operation panel for heavy crime fittings (55) in between! (51) are interposed so that the ends of the protrusion (52) are brought into contact with both ends of the metal fitting (55). In addition, a guide shaft (θO) is fixed to the metal fitting (55), and the switch base (
The switch mounting bracket (61) for attaching each switch (53) (54) to the guide shaft (60) is made to support the operating bracket (55) so as to be slidable in the axial direction of the guide shaft (60), and the protrusion (52) When the operating bracket (55) slides in the axial direction of the guide shaft (60) due to 5 contacts, the operating plate portion (59)
Press the switch (53) or the 7-cut machine part (57) or (58) of 50 to rotate the 7-lunge (27) within the rotation range angle (θ). It is configured as follows.

As shown in FIG. 8, a support plate (S4) is attached to the threshing section (fixed bracket at the front upper part) (83). and set pole) (85). The rest (82) is formed in a U-shape, and is usually attached to the bracket (63) so that the opening of the rest (82) faces the rest (82).
The direction in which the auger tube (26) is inserted into and removed from the rest (62) is the vertical direction (in the direction of the solid arrow in the same figure), while the opening of the rest (62) faces laterally as shown by the imaginary line in the same figure. Attach the support plate (83) to the mounting bolt hole (88) of the support plate (83).
4) by changing the mounting position of the rest (62
) with respect to the horizontal and lateral direction (
(in the direction of the imaginary line arrow in the figure).

In addition, a storage position switch (87) for detecting storage of the horizontal discharge auger tube (26) is provided on the rest (82), and the storage position switch (67) is connected to the rest ($8) via a switch bracket ($8). ) (82) - Side opening (
B3) so that its actuator part (70) faces inside the rest (82), and the storage position switch (8
7) is turned off, while the switch (87) is turned on when the auger tube (26) is removed from the rest (82), such as when carrying out grains.

As shown in FIG. 1, a control circuit (CPU) (71) is provided for automatically discharging and automatically storing the auger 0 (28), and the contents of the circuit (71) are switched between automatic discharging and automatic storing. A switching lever (71a) and an automatic switch (
72) and the auger tube (28) as desired by the operator.
Manual switches (73), (74), (75), and (78) for manual-priority left rotation, right rotation, raising, and lowering are provided in the operation section (18), and the lever (71a ) and each switch (72) (73) (74) (75) (76
), the limit switches (53) (54) and the storage position switch (78), and the hydraulic cylinder (48).
) A rising solenoid (79) and a descending solenoid (80) for operating the switching valves are connected as outputs to the control circuit (71), respectively.

Next, the control contents of the control circuit (71) during automatic ejection and automatic storage will be explained according to the flowcharts of FIGS. 9 to 13.

In addition, FUS (rising flag) in the flowchart,
The flags FR3 (left rotation flag) are used to determine whether to stop or restart automatic ejection (rising or left rotation) when the automatic storage switch (72) is touched. , gives information to the control circuit (71) that each flag of FR3 is "0" and automatic discharge is in progress, rlJ is automatic discharge stop, and ABC (automatic discharge flag) flag cancels automatic discharge. It is used to determine whether or not to perform automatic ejection, and gives information to the control circuit (71) that when the ABC flag is "0", automatic ejection is permitted, and when rlJ is set, automatic ejection is prohibited.

Therefore, when taking out grains from the grain tank (14),
Switch the switching lever (71a) to the automatic discharge side and set the auger %.
4 (2B) in the working direction.

As shown in the flowchart of FIG. 9, when the switching lever (71a) is operated to the automatic ejection side, the ABC flag is first set to "0" in step and step l.

Next, in step 2, it is determined that automatic discharge is permitted, and if the automatic switch (72) is touched in step 3, the upper sheath 1 solenoid (79) is turned on in step 4, and the auger tube (2θ) is turned on. The auger tube (26) is then raised, and in step 5, the time for the auger tube (26) to rise is started to be measured. Touch operation of automatic switch (72) and manual switch (
If there is no on operation of 73) to (7B) - (Step 6
, 7) , in step 8 auger tJ (2B)
When it is determined that the solenoid (79) has been raised for a certain period of time (corresponding to the specified height), the
) is turned off to stop the auger barrel (26) from rising, and proceed to step lO, which is the counterclockwise rotation of the auger n (26).

By the way, when the automatic switch (72) is touched in step 6, the process proceeds to step 12.

In step 12, since the FUS is initially "0", it is determined that the auger cylinder (26) is being raised by automatic discharge, and in step 13, the auger cylinder (28) is stopped from rising, and in step 14, the FUS is Set the flag to ``rl'', interrupt the timing in step 5 in step 15, and stop when the automatic switch (72) is touched again in step 8; turn the routing in 8.16, interrupt and hold automatic discharge, and start the auger. Stop the cylinder (26). Then, when the automatic switch (72) is touched again in Step 12, the FU
Since S is "rl", it is determined that automatic discharge is being stopped, and in step 17 FUS is set to "0", in step 18 the time measurement of step 5 is restarted, and in step 8 the auger cylinder (28) is raised. If it is determined that the FU has not been performed for a certain period of time, the FU
Since S is "0", it is determined that automatic ejection has been restarted, and the process proceeds to step 4, where the auger cylinder (
2B) is first raised.

Next, as shown in the flowchart of FIG.
At O, turn on the left rotation relays (78) (78) to rotate the auger tube (28) to the left (towards the working position),
In step 19, the counterclockwise rotation time of the auger cylinder (28) is started. If there is no touch operation of the single-motion switch (72) or ON operation of the manual switches (73) to (7B) while the auger cylinder (26) is rotating to the left (Stella 7'
20.21), in step 22 the auger cylinder (26)
moves to the left rotation end and the left limit switch (54) is turned off, the left rotation relay (54) is turned off in step 23.
78) (78) is turned off to stop the left rotation of the auger cylinder (28), and in step 24, the ABC flag is set to "l".
”, automatic discharge is not performed even if the automatic switch (72) is touched. 0 Under normal working conditions, the worker judges that the left rotation is moderate and the trailer is above the trailer. Automatic discharge is canceled by performing a manual lowering operation described later. At this time, the ABC flag is set to "1" so that the ejection position is not set even if the mouth motion switch (72) is touched.

Note that if the operator does not perform the manual lowering operation, the left limit switch (54) rotates until it is turned off as described above and stops at that position.

Also, in step 22, the left limit switch (54)
If the switch is not turned off due to a failure or the like, the process advances to step 25. In step 25, the rotation time is checked and the auger tube (
When it is determined that the left rotation of item 28) has been performed for a certain period of time, the relays (78) and (78) are turned off in step 26 to stop the left rotation of the auger cylinder (2B), and in step 27 ABC is turned off. After setting the flag to rlJ, automatic ejection is no longer performed, similar to when rotation is stopped by the limit switch (54).

By the way, in step 20, the automatic switch (72)
When is touched, the process advances to step 28.

In step 28, since FR3 is initially "0", it is determined that the auger tube (28) is rotating to the left due to automatic ejection, and in step 29, the left rotation of the auger tube (28) is stopped. , in step 30 the FR5
Set the flag to "l", interrupt the time measurement in step 19 in step 31, and stop at step 20, 25.3 when the automatic switch (72) is touched again.
2, the automatic discharge is interrupted and held, and the auger tube (28) is stopped. Then, in step 20, when the automatic switch (72) is touched 1q times,
Since FR3 is rlJ in the stave 28, it is determined that automatic discharge is being stopped, and in step 33, FR3 is set to "0", and in step 34, the time measurement in step 19 is restarted, and the process proceeds to step 22.
When it is determined in step 32 that the auger tube (2B) has not been rotated to the left for a certain period of time, the FR
3 is "0", it is determined that automatic discharge has been restarted, and the process proceeds to step 10, where the auger cylinder (2B) is rotated counterclockwise until a certain period of time has elapsed.

As mentioned above, when a worker senses danger during automatic discharge, if he or she touches the automatic switch (72), the automatic discharge is immediately interrupted to ensure safety, and then the automatic switch (72) is activated again. By performing a touch operation, automatic discharge can be restarted after it has been interrupted, thereby eliminating unnecessary operations.

During the automatic ejection, manual switches (73) to (78)
) is turned on, manual holding is performed and automatic discharge is stopped, and the operation is as shown in the flowcharts of FIGS. 11 and 12.

That is, in step 35, the manual switch for raising (
75) is turned on, the raising solenoid (79) is turned on in step 36 to raise the auger cylinder (26) to an arbitrary height. Further, when the lowering manual switch (76) is turned on in step 37, the ABC flag is set to ``rl'' in step 38, and the lowering solenoid (80) is turned on in step 39 to turn on the auger tube (28). Descends to any height.

As a result, when the manual switch (78) is lowered, an automatic discharge prohibition command is issued to the control circuit (71), and even if the automatic switch (72) is subsequently touched, the automatic discharge position setting operation is not performed.

Also, in step 40, the manual switch for clockwise rotation (7
4) is turned on, check whether the right limit switch (53) is turned on or off in step 41, and the auger #
If (28) is not at the right rotation end, the switch (53)
When the switch (53) is turned on, the process proceeds to step 42, and when the switch (53) is turned off, the process proceeds to step 43.Step 4
In step 2, the right rotation relays (77) (77) are turned on to rotate the auger cylinder (213) to an arbitrary position, and in step 43, the relays (77) (77) are held off and the auger cylinder (213) is turned off. Prevent clockwise rotation of (28). When the manual switch (73) for left rotation is turned on in step 44, the on/off state of the left limit switch (50) is checked in step 45, and if the auger tube (2B) is not at the left rotation end, the switch ( 54) is turned on, the process proceeds to step 46. If the switch (54) is turned off, the process proceeds to step 47. In step 46, the left rotation relays (78) (78) are turned on and the auger 1i21 is turned on.
(28) is horizontally rotated to an arbitrary position, and in step 47, the relays (78) (78) are held off to prevent left rotation of the auger cylinder (28). Then, when the auger tube (2B) is moved by turning on the manual switches (73) to (78), the process proceeds to step 48. In step 48, each flag of FUS%FR3 is set to "0" for manual operation. The system resets the automatic ejection that stopped in step 2 and proceeds to step 2, determines in step 2 that no manual lowering operation is performed, and starts automatic ejection when the storage switch (72) is touched in step 3. I try to do it from

On the other hand, when storing the auger cylinder (26) in the grain discharging work position in the augerless (CG2), that is, in the storage position, the changeover switch (71a) is switched to the automatic storage side and moved in the storage direction.

As shown in the flowchart of FIG. 13, when the switching lever (71a) is operated to the automatic storage side, first step 49
At this point, it is checked whether or not there is an auger tube (26) in the storage position by turning the storage position switch (87) on and off. It is determined that the switch (87) is on and there is no auger cylinder (26) in the storage position, and the automatic switch (7) is turned on in step 50.
If 2) is touched, the raising solenoid (78) is turned on in step 51 to raise the auger tube (26), and the process proceeds to step 52.

When the auger cylinder (26) has been raised for a certain period of time (corresponding to the specified height) in step 52, the solenoid (79) is turned off in step 53, and the auger cylinder (26)
6) Stop the first gear 1, step 54 auger t,
Proceed to 2 (2B) clockwise rotation.

In step 54, the right rotation relays (77) (77) are turned on to rotate the auger cylinder (26) to the right, and step 55
When the auger 1 (2G) moves to the right rotation end in step 55 and the right limit switch (53) is turned off, the right rotation relay (77) is turned off in step 56.
(77) is turned off to stop the clockwise rotation of the auger barrel (26), and the process proceeds to step 57, where the auger barrel (28) is lowered.

In step 57, the lowering solenoid (80) is turned on to lower the auger tube (26), and the process proceeds to step 58.In step 58, the auger tube (26) is stored in the storage position (augreless) (62), and the auger tube (26) is moved to the storage position. When the second switch (67) is turned off, the process proceeds to step 59, in which the solenoid (80) is turned off to stop the clockwise rotation of the auger tube (2B), and the auger tube (26) is automatically retracted. Complete.

"Effects of the Invention" As is clear from the above examples, the present invention has a grain tank (
14), an auger (26) that can discharge grains from the grain tank (14) to the outside of the machine, seven stages of auger vertical movement that move the auger (26) up and down, one stage of auger rotation that moves the auger horizontally, and an auger that moves the auger (26) up and down. In a combine harvester equipped with an automatic discharge position moving means that moves the auger toward the working position by sequentially specifying the operations of the lifting means and rotation means, an automatic switch ( 72) and a manual switch for the auger vertical movement means and rotation means (73
) to (7B) and a means for prohibiting the operation of the automatic discharge position moving means when the manual switch is lowered, it is possible to move the auger upward and work the auger (26) when the auger (2B) moves to discharge. The auger (26) is rotated only in the position direction, visually confirms that the operator has reached the desired position while the auger (26) is rotating, and then lowers the auger (26) using the manual switch (76).
8) The discharge set operation is released, and the auger (2B) can be reliably set at the discharge set position, resulting in an excellent safety effect.

[Brief explanation of the drawing]

Fig. 1 is a control circuit diagram, Fig. 2 is an overall side view of the combine, Fig. 3 is a plan view thereof, Fig. 4 is an explanatory diagram of the grain tank section,
FIG. 5 is a partial side view of the discharge auger section, FIG. 6 is a cross-sectional side view of the same, FIG. 7 is an explanatory diagram of the motor section, FIG. 8 is an explanatory diagram of the auger rest section, and FIGS. 9 to 13 are flowcharts. It is. (26)... Grain discharge auger tube (72)... Automatic switch
(73) (74) (75) (7B)...Manual switch applicant Yanmar f: Agent for S-Ki Co., Ltd. Tadaharu Fujiwara 4-Melv~ Figure 8 Figure 7 811 Figure 12

Claims (1)

[Scope of Claims] A grain tank, an auger that can discharge the grain from the grain tank to the outside of the machine, an auger vertical movement means for vertically moving the auger, an auger rotation means for horizontally moving the auger, an auger upward movement means, and In a combine harvester equipped with an automatic discharge position moving means that sequentially specifies the operation of the rotation means and moves the auger toward a working position, an automatic switch that controls activation and stop of the automatic discharge position moving means, and an auger vertical movement means An auger automatic discharge position moving device for a combine harvester, comprising: a manual switch for a rotating means; and means for prohibiting operation of the automatic discharge position moving means when the manual switch is lowered.