JP6071698B2 - Combine - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a combine that performs harvesting and threshing of cereals, and more particularly to control of a threshing clutch and a cutting clutch that turn on and off power from an engine.

  When the combine performs the cutting operation, the engine is first started with the threshing clutch and the cutting clutch turned off, the engine speed is increased to the working rotation state, and then the threshing clutch and the cutting clutch are turned on. Then, various other operations such as height adjustment of the cutting portion, extension of the narrow guide, and rotation of the divider to the outside of the machine body are performed, and the cutting operation is actually started.

  Conventionally, in order to simplify these operations, after starting the engine, an operation start state in which the accelerator means is set to the rated rotation state and the threshing clutch is turned on by instructing a work start command by the work command means. Furthermore, it is known that the cutting clutch is engaged if the driving operation state detection means satisfies the cutting operation start condition (see Patent Document 1).

Japanese Patent No. 4476235

  However, the device described in Patent Document 1 can be easily operated when the operator inadvertently operates the work command means in order to control the engine speed, the threshing clutch, and the mowing clutch only by operating the work command means. There was a problem of causing an erroneous operation. Further, when a work start command is commanded by the work command means, the engine speed automatically enters the rated speed state, and it is difficult for the operator to arbitrarily adjust the engine speed.

  Therefore, an object of the present invention is to provide a combine that solves the above-described problems by controlling the number of revolutions of the engine manually by an operator while controlling on / off of the threshing clutch and the reaping clutch. .

The present invention includes an engine mounted on the airframe (3), accelerator means (25) for adjusting the rotational speed of the engine, a threshing clutch for turning on / off power from the engine to the threshing section (7), In a combine (1) comprising: a transmission device that switches transmission or non-transmission of power from the engine to the cutting part (6);
Engine rotation detection means (32) for detecting the engine speed;
Control means (31) for controlling the cutting work including the threshing clutch and the transmission device;
Operating means (27) for instructing the control means (31) to start or end work,
The control means (31) operates the engine by the accelerator means (25) to detect a work rotation state in which the engine rotation detection means (32) is equal to or higher than a predetermined rotation speed, and the operation means (27 ) Commanding the start of the operation, the threshing clutch is controlled to be in the engaged state and the transmission device is in the transmitted state , and in the cutting operation start posture, the operating means When (27) commands the end of work, the threshing clutch is controlled to be in a disengaged state and the transmission device is in a non-transmitting state, and unless the operating means (27) commands the end of work. Even if the engine rotation detecting means (32) detects a non-working rotational state that is equal to or lower than a predetermined rotational speed, the mowing work starting posture is maintained .
It is characterized by that.

For example, referring to FIG. 3, an engine mounted on the airframe (3), accelerator means (25) for adjusting the rotational speed of the engine, and threshing for turning on / off power from the engine to the threshing section (7) In a combine (1) comprising: a clutch; and a transmission device that switches the power from the engine to the cutting unit (6) to be transmitted or not transmitted.
Engine rotation detection means (32) for detecting the engine speed;
Control means (31) for controlling the cutting work including the threshing clutch and the transmission device;
Operating means (27) for instructing the control means (31) to start or end work;
Forward / reverse detection means for detecting a forward state or a reverse state of the airframe (3);
A cutting height detecting means (42) for detecting the height of the cutting part (6),
The control means (31) operates the engine by the accelerator means (25) to detect a work rotation state in which the engine rotation detection means (32) is equal to or higher than a predetermined rotation speed, and the operation means (27 ) Commands the start of the operation, the threshing clutch is engaged, and further, the forward / reverse detection means detects the forward movement state of the airframe (3) and the cutting part (6) has a predetermined height. By satisfying at least one of the following detections by the cutting height detecting means (42), the transmission device is controlled to be in a cutting work starting posture in which the transmission device is in a transmission state , and the cutting is performed. When the operation means (27) commands the end of work in the work start position, the mowing work end position is set so that the threshing clutch is disengaged and the transmission device is in the non-transmission state. As long as the operation means (27) does not command the end of work, the cutting operation start posture is detected even if the engine rotation detection means (32) detects a non-working rotational state that is equal to or lower than a predetermined rotational speed. Keep it.

For example, referring to FIG. 3 and FIG. 4, a sub-transmission operation tool (23) capable of shifting the power from the engine and switching between a working range and a traveling range,
Sub shift detection means (33) for detecting the operation position of the sub shift operating tool (23);
The grain threshed in the threshing section (7) is discharged out of the machine, and a discharge auger (10) that can be moved up and down and rotated,
A discharge auger detection means (35) for detecting whether or not the discharge auger (10) is in a storage position;
The control means (31) detects that the auxiliary transmission operating tool (23) is in the travel range by the auxiliary transmission detection means (33), and the discharge auger detection means (35) detects the discharge. When at least one of detecting that the auger (10) is in a position other than the storage position is satisfied, control is performed so that the cutting operation start posture is the cutting operation end posture, and the cutting operation is performed. If it is not in the starting posture, the control to reach the cutting work starting posture is cancelled.

  In addition, although the code | symbol in the said parenthesis is for contrast with drawing, it does not limit the structure of this invention at all.

According to the first aspect of the present invention, when the engine rotation detection means detects the work rotation state and the operation means instructs the work start, the threshing clutch is in the engaged state and the transmission device is in the transmission state in the transmission state. Therefore, it is possible to easily achieve the cutting work start posture by omitting the trouble of the operation for setting the cutting work start posture, and it is possible to improve workability, but carelessly Just by operating the operating means, the cutting work start posture is not obtained, and erroneous operation can be prevented and safety can be improved. Furthermore, as long as the cutting operation start posture is set and the operation means does not command the end of the operation, even if the engine rotation detection means detects the non-working rotation state, the work start posture is maintained, so that maintainability can be improved, For example, when harvesting seeds for harvesting seeds, it is possible to reduce the engine speed by lowering the engine speed while maintaining the mowing start posture, reducing spear damage and producing good quality seeds. Can be obtained. Further, when the operating means commands the end of work in the cutting work start posture, the threshing clutch is in the disengaged state and the transmission device is in the non-transmitting state and the cutting work end posture is set. For example, when moving from the field to the road The cutting operation start posture can be quickly switched to the cutting operation end posture.

According to the second aspect of the present invention, the threshing clutch is turned on when the engine speed is in the working rotation state and the operating means commands the start of the work, and the machine body is in the forward state and the cutting part is below the predetermined height. When at least one of the certain conditions is satisfied, the transmission is controlled so that it is in the transmission state and the cutting work start posture is established, so that power transmission to the cutting part can be turned on and off easily and appropriately. , Can improve fuel efficiency and improve safety by preventing misoperation. Furthermore, as long as the cutting operation start posture is set and the operation means does not command the end of the operation, even if the engine rotation detection means detects the non-working rotation state, the work start posture is maintained, so that maintainability can be improved, For example, when harvesting seeds for harvesting seeds, it is possible to reduce the engine speed by lowering the engine speed while maintaining the mowing start posture, reducing spear damage and producing good quality seeds. Can be obtained. Further, when the operating means commands the end of work in the cutting work start posture, the threshing clutch is in the disengaged state and the transmission device is in the non-transmitting state and the cutting work end posture is set. For example, when moving from the field to the road The cutting operation start posture can be quickly switched to the cutting operation end posture.

According to the third aspect of the present invention, when at least one of the sub-shift operating tool is in the traveling range and the discharge auger is in a position other than the retracted position is satisfied, the cutting operation start posture is not controlled. Therefore, the speed unsuitable for the cutting work and the work where the discharge auger is not located at the storage position can be prevented, the cutting failure can be prevented and the safety can be improved.

The whole side view which shows the combine which concerns on this Embodiment. The whole top view. The control block diagram which shows the control of a combine. The flowchart which shows the control of a combine. It is a figure which shows control of the various drive parts of a combine, Comprising: (a) is a flowchart which shows work start control, (b) is a flowchart which shows work end control.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the combine 1 has a machine body 3 that is supported by a crawler traveling device 2 and is equipped with an engine (not shown). A cutting portion 6 that is transferred to the feed chain 5 is provided so as to be movable up and down and slidable left and right. On one side of the machine body 3 is provided a threshing unit 7 for threshing and sorting cereals harvested and transported by the harvesting unit 6 and the feed chain 5. Is provided with a driving operation unit 8 for performing a driving operation.

  A Glen tank 9 for storing the grains threshed and selected by the threshing unit 7 is disposed behind the operation operation unit 8, and stored in the Glen tank 9 behind the Glen tank 9. A liftable and rotatable discharge auger 10 for discharging the produced grain out of the machine is placed and supported on the auger rest 11. After the threshing portion 7 has finished threshing, the slaughtered portion is cut by a cutter device (not shown) disposed at the rear of the threshing portion 7 and diffused and discharged to the cutting area behind the body 3 through an openable / closable diffusion cover 12. Is done.

  The mowing unit 6 includes a rotatable divider 13 for weeding cereals in a field, a pulling device 15 for causing cereals that have been weeded behind the divider 13, and a reciprocating unit that cuts the raised cereals. A cutting blade 16 of a type, a cereal conveying device 17 that conveys the harvested cereal and delivers it to the feed chain 5, a handling depth carrier 19 that adjusts the handling depth of the cereal, and the like. The cutting portion 6 is configured to be switchable between a working posture that projects forward from the body 3 and guides the planted cereals to a weed, and a retracted posture that is drawn toward the body 3 side. A narrow guide 20 is provided.

  The driving operation unit 8 is a main unit capable of adjusting the forward or reverse vehicle speed steplessly by operating forward or backward from the neutral position to the left side of the driver seat 21 provided in the center of the driving operation unit 8. A shift lever 22, a sub-shift lever 23 (sub-shift operating tool) that can be switched between a low-speed work range and a high-speed travel range, an accelerator lever 25 (accelerator means) that adjusts the engine speed, and button operations Then, a threshing clutch and a mowing clutch (transmission device) (not shown) are turned on and off, and the power clutch 26 that can turn on and off the power from the engine to the threshing portion 7 or the mowing portion 6 and a control unit described later are started. Alternatively, a work command operation lever 27 (operation means) for instructing the end of the work is provided. The work command operation lever 27 is not limited to a lever, and may be a button switch or the like. Further, in front of the driver's seat 21, a multi-steering lever 29 capable of raising and lowering the cutting unit 6 and turning the airframe 3, a notification lamp 30 and the like are arranged rearward and up and down. An auger remote controller (not shown) that performs a dynamic operation and a grain discharging operation is provided.

  FIG. 3 shows a control block diagram in the present embodiment, and the combine 1 is composed of a microcomputer (including a CPU, ROM, RAM, etc.) and includes a control unit 31 (control means) constituting the control block diagram. ing. On the input side of the control unit 31, the work command operation lever 27 for instructing work start or work end, and an engine rotation sensor 32 (engine rotation detection) for detecting the engine speed adjusted by the operation of the accelerator lever 25 are provided. Means), a traveling sub-transmission sensor 33 (sub-transmission detecting means) for detecting a work range position or a traveling range position (operation position) of the auxiliary transmission lever 23, and the discharge auger 10 are mounted and supported on the auger rest 11. An auger turning potentiometer 35 (discharge auger detecting means) for detecting whether or not the threshing clutch and the reaping clutch are on or off, and a threshing clutch position sensor 36 and a reaping clutch position sensor 37, respectively. The narrow guide position sensor 39 for detecting the working posture or the retracted posture of the narrow guide 20. , A diffusion cover position sensor 40 for detecting the opening / closing position of the diffusion cover 12, a handling depth sensor 41 for detecting the position of the handling depth carrier 19, and a lift position and a left / right sliding position of the cutting unit 6 are detected. A cutting position height detection sensor 42 (cutting height detection means), a cutting position slide position sensor 43, and a divider position sensor that detects an open state in which the divider 13 is opened to the outside of the body 3 and a closed state in which the divider 13 is closed to the inside of the body 3 45 are connected.

  Further, on the output side of the control unit 31, the notification lamp 30, an audio device 46 such as a speaker arranged in the driving operation unit 8, and a threshing clutch drive motor 47 for turning on and off the threshing clutch and the reaping clutch, respectively. , A cutting clutch drive motor 49, a narrow guide drive motor 50 for switching the narrow guide 20 to a working posture or a retracted posture, a diffusion cover drive motor 51 for switching the diffusion cover 12 to an open state or a closed state, and the above-mentioned handling depth conveyance A handle depth driving motor 52 that adjusts the position of the body 19, a cutting unit lifting cylinder 53 that moves the cutting unit 6 up and down and slides left and right, a cutting unit slide driving motor 55, and the divider 13 are switched to an open state or a closed state. A divider drive motor 56 is connected.

  Since the present embodiment is configured as described above, when the combine 1 performs the cutting operation on the field, the operator sets the combine 1 to the cutting operation start posture for performing the cutting operation manually or automatically. . That is, when the cutting operation is started manually, the engine is first started, the engine speed is increased by the accelerator lever 25, and the threshing clutch and the cutting clutch are turned on by the power clutch 26. Then, the narrow guide 20 is extended to the working posture, the diffusion cover 12 is set in the open state, the position of the handling depth carrier 19 is adjusted, the lifting / sliding position adjustment of the cutting unit 6 is set, the divider 13 is set in the open state, etc. Carrying out various operations.

  Next, a description will be given of the combine control in the present embodiment when the cutting operation start posture is set by automatic control. FIG. 4 shows a flowchart of the control of the combine 1. In S1, when the work command operation lever 27 is turned ON / OFF, that is, when a work start command / work end command is detected and determined and is ON (work start command). In S2, the engine rotation sensor 32 detects the engine speed. When the detected engine speed is a working speed state that is equal to or higher than the predetermined speed, the process proceeds to S3.

  In S3, the traveling auxiliary transmission sensor 33 detects the position of the auxiliary transmission lever 23. If the auxiliary transmission lever 23 is in the working range, the process proceeds to S4. In S4, the auger turning potentiometer 35 detects whether the discharge auger 10 is in the storage position or a discharge position other than the storage position. If the discharge auger 10 is in the storage position, the process proceeds to S5, and the notification lamp 30 is reached. The operator recognizes that the work start control (S6) has been performed so that is lit and the cutting work start posture is set. When work start control is performed in S6, the process proceeds to S7, the work state flag becomes 1, and the process returns to the start.

  With the said work start control, as shown to Fig.5 (a), a threshing clutch is in an engagement state (C1), a mowing clutch is in an engagement state (C2), and the narrow guide 20 is a work posture (extension posture) (C3), When the diffusion cover 12 is in the open state (C4), the automatic depth adjustment (C5) is performed according to the length of the harvested culm so that the handling depth of the handling depth carrier 19 is constant, and the cutting unit 6 is assumed to have a constant cutting height. Automatic lift position adjustment (C6) so that the cutting unit 6 is slid to the left position where the operator can easily see (C7), the divider 13 is open (C8), and various voice assists by the voice device 46 are turned on ( C9), various controls. As a result, it is possible to easily achieve the cutting work start posture by omitting the labor of various manual operations for making the cutting work start posture, and while improving workability, the work command is inadvertently performed. Even if the operation lever 27 is turned on, there are other conditions such as the engine speed, the auxiliary transmission lever, and the position of the discharge auger, so that an erroneous operation can be prevented and safety can be improved.

  If the work command operation lever 27 is set to OFF (work end command) in S1, the auxiliary transmission lever 23 is set to the travel range in S3, or if the discharge auger 10 is in a discharge position other than the storage position in S4, the process proceeds to S8. The operator recognizes that the work end control (S9) is performed so that the notification lamp 30 is turned off and the mowing work end posture is set. When the work end control is performed in S9, the process proceeds to S10 and the work state flag is set to 0. In S11, various voices such as “Set the sub-shift to the work range”, “Store the auger”, etc. Assist is performed and return to the start. As a result, the cutting operation in the high-speed traveling range and the cutting operation in a state where the discharge auger 10 is in the discharge position are prevented, and the cutting failure can be prevented and the safety can be improved.

  As shown in FIG. 5B, the above-mentioned work end control means that the threshing clutch is in the disengaged state (C11), the mowing clutch is in the disengaged state (C12), the narrow guide 20 is in the retracted position (C13), and the diffusion cover 12 is closed. State (C14), automatic position adjustment of the handling depth carrier 19 is OFF (C15), automatic lifting position adjustment of the cutting unit 6 is OFF (C16), slide movement to the right side of the cutting unit 6 (C17), and the divider 13 is closed The state (C18) and various controls for turning off various voice assists by the voice device 46 (C19). In addition, you may enable it to cancel control separately about control other than the on / off control of the threshing clutch in the said work start control and work end control.

  If it is determined in S2 that the engine speed is a non-working speed state equal to or lower than the predetermined speed, the process proceeds to S12 to determine whether the work state flag is 1 or 0. When the work state flag is 0 in S12, that is, when the work end control is performed in S9 and the cutting work end posture is set, the process proceeds to S13, and the notification lamp 30 blinks, and in S14, “set engine speed to work rotation”. "Please voice assist" to increase the engine speed and return to the start.

  When the work state flag is 1 in S12, that is, when the work start control is performed in S6 and the cutting work start posture is set, the process proceeds to S3, and the sub-shift lever is moved to the work range (S3: work range) and the discharge auger 10 is stored. If it is in the position (S4: retracted position), the cutting work starting posture is maintained. As a result, the work command operation lever 27 is turned on, and the accelerator lever 25 is set to a work rotation state in which the engine speed is equal to or higher than a predetermined speed, and once the cutting work is started (S1, S2, S3, S4, S4). In S5, S6, and S7), the engine 1 is set to a non-working rotational state that is equal to or lower than the predetermined rotational speed by the accelerator lever 25 (S1, S2, S12, S3, S4, S5, S6, S7), thereby combining 1 During maintenance, maintenance can be performed in a state where the engine speed is low, and maintainability can be improved. Further, by performing the cutting operation in a state where the engine speed is low, that is, in a state where the handling cylinder is low, seed cutting can be performed to reduce damage to the pod and obtain good quality seeds.

  In addition, once the mowing work start posture is set (S1, S2, S3, S4, S5, S6, S7), the mowing work end posture is obtained simply by turning off the work command operation lever 27 (work end command). Since (S1, S8, S9, S10, S11), for example, when the cutting operation is finished on the field and moves to the road, the cutting operation start posture can be easily and quickly switched to the cutting end start posture.

  The threshing clutch drive motor 47 and the reaping clutch drive motor 49 may be configured to operate in conjunction with one motor, and may be a hydraulic cylinder or other actuator instead of the motor.

  In addition, the on / off of power from the engine to the cutting unit is not limited to the cutting clutch including a belt tension clutch or the like. For example, an HST (hydrostatic continuously variable transmission) is used to incline the swash plate to the cutting unit. Alternatively, a transmission device may be used that transmits the power to the swash plate and switches the power to the cutting unit to non-transmission.

  The combine 1 is also provided with forward / reverse detection means for detecting the forward or reverse state of the machine body 3, and the threshing clutch is activated when the work command operation lever 27 is ON (work start command) and the engine speed is in the work rotational state. And the forward / backward detection means detects that the machine body 3 has traveled forward, and the reaping part height detection sensor 42 detects that the reaping part 6 is below a predetermined height. You may comprise so that it may be controlled so that it may be in the mowing work start position which a mowing clutch will be in an engagement state by satisfy | filling at least any one. As a result, while simplifying the labor required to start the cutting operation, the power transmission to the cutting unit 6 can be easily and appropriately turned on and off, improving fuel consumption and preventing erroneous operation. Can be improved.

DESCRIPTION OF SYMBOLS 1 Combine 3 Airframe 6 Cutting part 7 Threshing part 10 Discharge auger 23 Subtransmission operation tool (subtransmission lever)
25 Accelerator means (accelerator lever)
27 Operation means (work command operation lever)
31 Control means 32 Engine rotation detection means (engine rotation sensor)
33 Sub-shift detection means (travel sub-shift sensor)
35 Discharge auger detection means (auger turning potentiometer)
42 Cutting height detection means (cutting part height detection sensor)

Claims (3)

Engine mounted on the fuselage, accelerator means for adjusting the rotational speed of the engine, threshing clutch for turning on / off power from the engine to the threshing part, and transmission or non-transmission of power from the engine to the reaping part In a combine equipped with a transmission device for switching,
Engine rotation detecting means for detecting the engine speed;
Control means for controlling the cutting operation including the threshing clutch and the transmission device;
Operating means for instructing the control means to start or end work,
The control means operates the engine by the accelerator means to detect a work rotation state in which the engine rotation detection means is equal to or higher than a predetermined rotation speed, and the operation means commands the start of the work. When the threshing clutch is in the engaged state and the transmission device is controlled to be in the mowing work start posture in which the threshing clutch is in the transmitting state and is in the mowing work start posture , and the operating means commands the end of the work, the threshing clutch is disengaged. A non-working rotation state in which the engine rotation detecting means is equal to or less than a predetermined number of revolutions unless the operation means commands the end of the work. Even if detected, the mowing work starting posture is maintained ,
Combine that is characterized by that. Engine mounted on the fuselage, accelerator means for adjusting the rotational speed of the engine, threshing clutch for turning on / off power from the engine to the threshing part, and transmission or non-transmission of power from the engine to the reaping part In a combine equipped with a transmission device for switching,
Engine rotation detecting means for detecting the engine speed;
Control means for controlling the cutting operation including the threshing clutch and the transmission device;
Operation means for instructing the control means to start or end work;
Forward / reverse detection means for detecting a forward state or a reverse state of the airframe;
A cutting height detecting means for detecting the height of the cutting part,
The control means operates the engine by the accelerator means to detect a work rotation state in which the engine rotation detection means is equal to or higher than a predetermined rotation speed, and the operation means commands the start of the work. The threshing clutch is in the engaged state, and further, at least one of the forward and backward detection means detecting the forward movement state of the machine body and the cutting height detection means detecting that the cutting part is below a predetermined height. By satisfying either one of the above, the transmission device is controlled to be in the cutting work start posture in which the transmission device is in the transmission state , and in the cutting work start posture, and when the operating means commands the end of the work, the threshing clutch is Unless the operation means commands the end of the work, control is performed so that the cutting operation and the transmission device are in the non-transmission state. Be detected non-working rotation state where the engine rotation detecting means is equal to or less than a predetermined rotational speed, comprising maintaining the cutting work start position,
Combine that is characterized by that. A sub-shift operating tool that can shift the power from the engine and switch between a working range and a traveling range;
Sub-shift detection means for detecting the operation position of the sub-shift operating tool;
The grain threshed in the threshing part is discharged out of the machine, and a discharge auger that can be raised and lowered freely,
A discharge auger detecting means for detecting whether or not the discharge auger is in a storage position;
The control means detects that the auxiliary transmission detecting means detects that the auxiliary transmission operating tool is in the travel range, and the discharge auger detection means detects that the discharge auger is in a position other than the storage position. If at least one of the above conditions is satisfied, control is performed so that the mowing work start posture is in the mowing work start posture, and if it is not in the mowing work start posture, the control of the mowing work start posture is cancelled. To
The combine according to claim 1 or 2 .

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