JP4090964B2 - Combine auger control unit - Google Patents

Description

  The present invention relates to an auger control device for a combine equipped with a discharge auger that can be swung and raised and lowered with respect to a machine body.

  2. Description of the Related Art Conventionally, a discharge auger that can be swung and raised and lowered with respect to a machine body, a detection sensor that detects a swiveling and raising / lowering position of the discharge auger, an auger operation lever or an auger automatic switch for operating the discharge auger, A combine that performs turning and raising / lowering control of a discharge auger based on an operation or a push operation of an auger automatic switch is known. For example, when the discharge auger is in the upper limit position and the auger automatic switch is pressed, the combiner automatically turns the discharge auger to a preset position when the discharge auger is in the storage position. When the discharge auger is in a position other than the storage position, it is automatically stored by turning to the storage position.

  On the other hand, in the auger manual control, if the discharge auger turns carelessly when the discharge auger is not at the upper limit position, the discharge auger may come into contact with the grain tank or the like. Even if the auger operation lever is operated when there is not, a turning restriction area for restricting the turning movement of the discharge auger is set so that the discharge auger does not turn in any direction according to the current position of the discharge auger. The discharge auger is prevented from coming into contact with a grain tank or the like (see, for example, Patent Document 1).

JP 2003-79232 A (second page, FIG. 3)

  However, in the conventional combine, for example, when performing auger automatic control, if the device power is turned on while the auger automatic switch is always on due to a failure, the auger automatic control is activated against the will of the operator. The discharge auger may perform automatic turning or automatic storing operation.

  Further, conventionally, for example, when a detection sensor for detecting the raising / lowering position of the discharge auger fails and the upper limit position of the discharge auger cannot be detected, even if the discharge auger is actually at the upper limit position, the auger is manually controlled. Since the restriction region for restricting the operation range of the discharge auger remains set, there is a problem that the auger operation lever cannot be operated to freely move the discharge auger.

  The present invention has been made to solve such a problem. The object of the present invention is to prohibit the automatic control operation of the discharge auger when the apparatus power is turned on simultaneously with the pressing operation of the auger automatic switch. Another object of the present invention is to provide a combine auger control device that cancels the setting of a restriction region that restricts the operating range of a discharge auger.

In order to achieve the object, the invention according to claim 1 includes a discharge auger (24) for carrying the grain temporarily stored in the grain tank (16) out of the machine, and the discharge auger (24). Control means (38) for turning and raising / lowering control by auger manual control based on operation of the manual operation tool (36) or auger automatic control based on push operation of the auger automatic switch (34), and turning of the discharge auger (24) And an auger control device for a combine (10) comprising a restriction region for restricting an operation range of turning and raising / lowering of the discharge auger (24).
The control means (38) performs turning and raising / lowering control of the discharge auger (24) by the auger automatic control on condition that the apparatus power is turned on (23) while pushing the auger automatic switch (34). It is prohibited and the setting of the restriction area is canceled.

  In addition, the code | symbol in the parenthesis mentioned above is shown in order to refer drawings, Comprising: This invention is not limited at all.

  According to the first aspect of the invention, on the condition that the apparatus power is turned on while pressing the auger automatic switch, the turning and raising / lowering control of the discharge auger by the auger automatic control is prohibited. When a switch breaks down and is always turned on, the automatic control operation of the discharge auger can be prohibited by turning on the apparatus power simultaneously with the pushing operation of the auger automatic switch, thereby improving safety. be able to.

  Also, on the condition that the apparatus power is turned on while pushing the auger automatic switch, the setting of the restriction area for restricting the operation range of the turning and raising / lowering of the discharge auger is canceled. When the detecting means for detecting the raising / lowering position breaks down, the setting of the restriction area is canceled by turning on the apparatus power simultaneously with the pushing operation of the auger automatic switch. By the control, the discharge auger can be swiveled and moved up and down to a desired position, and troubles when trouble occurs can be avoided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 and FIG. 2 are a side view and a plan view of a combine to which the present invention is applied. The combine 10 is a pre-processing unit that harvests cereal grains in front of a traveling machine body 11 supported by a crawler traveling unit 20. 12, a threshing unit 14 for threshing the harvested cereal cocoon, and the threshed grain is lifted and transferred via a whipping cylinder 17 temporarily on the machine body behind the pretreatment unit 12 The grain tank 16 to be stored in the storage unit, the waste straw processing unit 18 for processing the threshed waste straw, and the control unit 22 provided with various operation tools such as the seat 19 and the multi-steering lever 21 are disposed. Yes.

  Behind the grain tank 16, a vertical pipe 24a is erected from the lower part of the rear surface of the grain tank 16, and a discharge auger 24 is horizontally installed at the upper end of the vertical pipe 24a so as to be rotatable and undulating. Thus, the grain temporarily stored in the grain tank 16 is carried out of the machine via the discharge auger 24. A horizontal spiral 25 facing in the front-rear direction is arranged at the bottom of the grain tank 16, and the grain transferred rearward by the horizontal spiral 25 is taken over by a vertical spiral 26 built in the vertical pipe 24 a. Then moved upward. The discharge auger 24 is moved up and down according to the expansion and contraction of the hydraulic cylinder 27 (see FIG. 2), and is driven to rotate based on the driving of the auger turning motor 28 that rotates the vertical pipe 24a.

  As shown in FIG. 3, the maneuvering unit 22 has a main speed change lever 30 for setting the traveling direction and speed of the traveling machine body 11, and the traveling speed of the machine body according to the state of the field (kernel napping, lying down) and the like. A sub-transmission lever 31 to be selected, the multi-steering lever 21 for performing a left / right turning operation of the machine body and a lifting / lowering operation of the preprocessing unit 12, a work machine clutch lever 32 for operating a work machine clutch (not shown), and a cutting clutch. A cutting clutch lever 33 and the like for operating (not shown) are arranged. Further, an engine start switch 23 for turning on the apparatus power is disposed in the vicinity of the base end portion of the multi-steering lever 21.

  Further, at the rear part of the seat 19, an automatic auger switch 34 for automatically operating the discharge auger 24 from the storage position to the discharge position or from the discharge position to the storage position, and turning and raising / lowering operations of the discharge auger 24 are operated. An auger emergency stop switch 35 that is stopped halfway and a manual operation lever 36 for manually operating the discharge auger 24 are arranged.

  As shown in FIG. 4, on the input side of the control unit 38 that controls the discharge auger 24, an auger manual switch 36 a that detects the operation direction of the manual operation lever 36, and an auger upper limit that detects the rising end of the discharge auger 24. The switch 37, the auger potentiometer 39 for detecting the rotation angle of the vertical pipe 24a of the discharge auger 24, the auger automatic switch 34 and the auger emergency stop switch 35 described above are connected. On the output side of the control unit 38, the auger turning motor 28, an auger electromagnetic brake 28a built in the auger turning motor 28, and a valve for supplying hydraulic oil to the hydraulic cylinder 27 are switched to switch the discharge auger 24. The auger raising / lowering solenoid 40 for performing hoisting, the auger automatic lamp 34a indicating that the auger automatic switch 34 is in an operating state, and the auger emergency stop lamp 35a indicating that the auger emergency stop switch 35 is in an operating state are connected. ing.

  FIG. 5 shows a turning range of the discharge auger 24 by manual control. In FIG. 5, the left turning operation of the discharge auger 24 is mechanically restricted at the left limit position in the drawing, and the right turning is also performed. Operation is mechanically restricted at the right limit position. Further, in the swivel region of the discharge auger 24, the storage position A for storing the discharge auger 24, the seat position B positioned almost directly above the seat seat 19, and the right side of the traveling machine body 11 are extended. An operation restriction in which a discharge area C is set and a restriction area is set between the storage position A and the discharge position C to prevent the discharge auger 24 from coming into contact with the grain tank 16 or the operator. Has been done.

  That is, in the case of the auger manual control based on the operation of the manual operation lever 36, this operation restriction can be freely swiveled and lifted when the discharge auger 24 is at the upper limit position. If it is not at the upper limit position, it can be freely swung and moved up and down when the turning position of the discharge auger 24 is on the left side of the storage position A or on the right side of the discharge position C. Further, when the discharge auger 24 is not at the upper limit position and the turning position of the discharge auger 24 is between the storage position A and the seat position B, the right turn and the lowering are prohibited. When 24 is not at the upper limit position and the turning position of the discharge auger 24 is between the seat position B and the discharge position C, left turn and lowering are prohibited.

  In the auger automatic control based on the pushing operation of the auger automatic switch 34, the operation restriction as described above is not performed in the present embodiment. For example, when the discharge auger 24 is in the storage position A, the auger automatic switch 34 is used. When the discharge auger 24 is raised to the upper limit position, it automatically turns to the turning position set in advance with a dial (not shown), and the discharge auger 24 is not in the storage position A. When the auger automatic switch 34 is pushed, the discharge auger 24 automatically turns to the storage position A, and descends at that position and is stored in the storage position A.

  For example, when the discharge auger 24 is not in the storage position A, when the discharge auger 24 is stored by pushing the auger automatic switch 34, the sensor detects that the discharge auger 24 has automatically turned to the storage position A. After the detection, the lowering operation is performed after a predetermined pause time, so that the switching to the next operation is stabilized and the operational feeling is improved.

  In the present embodiment, the control unit 38 turns and lifts the discharge auger 24 by automatic auger control on condition that the engine power switch is turned on by pressing the engine start switch 23 while pushing the auger automatic switch 34. In addition to prohibiting the control, control is performed to cancel the setting of the restriction region that restricts the operation range of turning and raising / lowering of the discharge auger 24.

  FIG. 6 is a flowchart of a main routine relating to the present embodiment. In FIG. 6, in S10, the engine start switch 23 is turned on (the device power is turned on) while the auger automatic switch 34 is pushed (ON operation). If the operation is turned ON, the restriction release flag for releasing the restriction area setting for restricting the operation range of the turning and raising / lowering of the discharge auger 24 is set to 1 (release) in S11. If no push operation is performed (OFF), the restriction release flag is set to 0 (non-release) in S13, and the process proceeds to S12. Then, in S12, it is confirmed whether or not an initial setting has been made. Next, in S14, the saw depth control in the preprocessing unit 12, the selection control in the threshing unit 14 in S15, and the auger control in the discharge auger 24 in S16. In step S17, output corresponding to various controls is performed, and the process returns to step S14.

  FIG. 7 is a flowchart showing the auger control (S16 in FIG. 6). In FIG. 7, it is confirmed in S20 whether the auger is manually controlled by the manual operation lever 36, and in S21, the restriction release flag is 1 (release). ) Or 0 (non-cancellation), and if it is 0 (non-cancellation), in S22, it is confirmed whether or not the control is based on automatic control, and further whether or not the operation of the discharge auger 24 is regulated in S23. The output is set according to the control.

  In S21, if the restriction release flag is 1 (release), in S25, the automatic auger control is prohibited and a notification that the restriction area setting for restricting the range of operation of turning and raising / lowering of the discharge auger 24 has been released. Therefore, the auger automatic lamp 34a is blinked. In this case, only the auger manual control based on the operation of the manual operation lever 36 is possible.

  That is, according to the present embodiment, the turning and raising / lowering control of the discharge auger 24 by the auger automatic control is performed on condition that the engine start switch 23 is turned on (the device power is turned on) while the auger automatic switch 34 is pushed. It is forbidden. For this reason, for example, when the auger automatic switch 34 is always on due to a failure, if the operator turns on the engine start switch 23 simultaneously with the pressing operation of the auger automatic switch 34, the auger automatic control is prohibited. In this case, the control of the discharge auger 24 can be performed by the auger manual control based on the operation of the manual operation lever 36. The operator's careful lever operation ensures work safety.

  Further, for example, when the auger upper limit switch 37 for detecting the raising / lowering position of the discharge auger 24 or the auger potentiometer 39 for detecting the turning position is broken (for example, when the discharge auger 24 is at the upper limit position but this is not detected, (If the turning position of the discharge auger 24 cannot be detected), if the operator turns on the engine start switch 23 simultaneously with the pushing operation of the auger automatic switch 34, the auger automatic control is prohibited. Since the setting of the restriction area is released, after the release, the discharge auger 24 can be turned and moved up and down to a desired position by manual auger control by the manual operation lever 36.

  Thus, by turning on the apparatus power while pushing the auger automatic switch 34, the turning and raising / lowering control of the discharge auger 24 by the auger automatic control is prohibited and the setting of the restriction area is released. For example, when exchanging the auger turning motor 28 to which the auger potentiometer 39 is attached, even if only the auger automatic control is prohibited, the restriction area for restricting the operating range of the discharge auger 24 remains set. Since there are cases where the auger 24 cannot be moved to a desired position by the auger manual control, the setting of the restriction area is canceled to enable the operation by the auger manual control.

It is a side view of a combine to which the present invention is applied. It is a top view same as the above. It is a top view of a control part. It is a block diagram regarding auger control. It is a figure which shows the control area | region of the turning range of a discharge auger. It is a figure which shows the flowchart of the main routine regarding this embodiment. It is a figure which shows the flowchart regarding auger control.

Explanation of symbols

10 Combine 16 Grain Tank 23 Engine Start Switch 24 Discharge Auger 34 Auger Automatic Switch 36 Auger Manual Operation Lever 37 Auger Upper Limit Switch 38 Control Unit 39 Auger Potentiometer

Claims (1)

A discharge auger that transports the grain temporarily stored in the grain tank to the outside of the machine, and an auger manual control based on the operation of a manual operating tool or an auger automatic control based on a push operation of an auger automatic switch. Combined auger control comprising a control means for controlling turning and raising / lowering and a detecting means for detecting turning and raising / lowering positions of the discharge auger, wherein a restriction area for restricting an operation range of turning and raising / lowering of the discharge auger is set. In the device
The control means prohibits turning and raising / lowering control of the discharge auger by the auger automatic control and cancels the setting of the restriction area on condition that the apparatus power is turned on while pushing the auger automatic switch. ,
An auger control device for a combine.

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