JP2009268365A - Clutch operation device in combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable the on-off control of a clutch of a reaping and threshing system to be simply and lightly carried out by utilizing a cam mechanism driven by an electrically driven motor, and to enable the cam mechanism to be also utilized for the on-off control of a clutch for unloading grain. <P>SOLUTION: A position (a) at which a clutch 50 for unloading grains is in an on-state and a reaping clutch 30 is in an off-state is set in one side operation region, and a position (c) at which the clutch 50 for unloading grains is in the off-state and the reaping clutch 30 is in the on-state is set in the other side operation region so as to hold a neutral position N at which the reaping clutch 30 and the clutch 50 for unloading grains are both kept in the off-state in a cum mechanism 8 enabling the rotation direction to be switched to the normal rotation direction and the reverse rotation direction by an electrically driven motor 70. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  INDUSTRIAL APPLICABILITY The present invention is used for turning on and off the drive clutch of each of the devices in a combine equipped with a cutting and conveying unit, a threshing device, a grain storage device, and the like on a traveling machine body equipped with a traveling device. The present invention relates to an improvement of a combine clutch operating device.

As the above-described combine clutch operating device, those having the structures shown in [1] and [2] below are known.
[1] A configuration in which a cam mechanism is driven by an electric motor to operate a reaping clutch, a threshing clutch, and a feed chain clutch (see Patent Document 1).
[2] Independently of cutting and threshing clutches, a driving clutch of a screw conveyor for discharging a grain for taking out the grains in the grain tank to the outside can be manually turned on and off (Patent Document 2) reference).

JP 2004-105021 A (paragraphs [0041], [0042], [0045], [0046] FIG. 3, FIG. 7, FIG. 11) JP 2000-60287 (paragraphs [0025], [0030], [0031], FIG. 3 and FIG. 4)

As shown in Patent Document 1, in a structure in which a cutting mechanism, a threshing clutch, and a feed chain clutch are controlled using a cam mechanism driven by an electric motor, the driving force of the electric motor is used. In addition, it is possible to operate a plurality of clutches lightly, and the operation timing of each clutch can be arbitrarily set by the linkage operation of the cam plate of the cam mechanism and the cam follower, and used in a state suitable for the work form. This is advantageous in that
However, when discharging the grain stored in the grain storage device to the outside of the machine, it is generally necessary to operate the clutch for grain discharge at the operation timing when cutting and threshing work is not performed, Conventionally, as shown in Patent Document 2, regardless of a mechanism for operating a threshing clutch or a reaping clutch and an operation tool for the threshing clutch or a cutting clutch, the operation of the clutch is independently performed by an operation tool provided separately. I was doing.

This means that if the grain discharge clutch is to be operated using the cam mechanism for operating the reaping clutch, the threshing clutch and the feed chain clutch, the following problems will be caused. Probably because it was thought.
That is, for example, during the operation process of the cam mechanism so that each clutch is sequentially operated from the position where all the clutches to be operated in the cam mechanism are stopped to the position where all the clutches are operated. If the operation range of each clutch is set to any position in the operation stroke, the operation of the clutch is not changed regardless of the position of the clutch discharge operation. Even though another clutch temporarily moves in the middle or does not want to operate the grain discharging clutch, the grain discharging clutch is temporarily operated during the operation of the clutch related to mowing and threshing. There is a possibility that it will end up.

  An object of the present invention is to make it possible to easily and lightly control the cutting and threshing clutch on / off using a cam mechanism driven by an electric motor, and to use the cam mechanism for a grain discharging clutch. An object of the present invention is to provide a combine clutch operating device that can be used effectively for on / off control.

[Solution 1]
The technical means taken in the present invention in order to solve the above-mentioned problems are, as described in claim 1, a cutting clutch for turning on and off the driving of the cutting and conveying device, and a grain discharge for turning on and off the driving of the grain storage device. In the clutch operating device of the combine that operates the clutch,
A cam mechanism for turning on and off each clutch, and an electric motor for driving the cam mechanism,
The cam mechanism is configured to be capable of changing the rotation direction between the normal rotation direction and the reverse rotation direction by the electric motor, and the neutral position where both the cutting clutch and the grain discharging clutch are maintained at the cutting position. In the operation area on one side, the position where the grain discharging clutch is engaged and the mowing clutch is disengaged is set, and in the other operation area, the grain discharging clutch is clutched and the mowing clutch is clutched. The position to enter is set.

[Action and effect]
As described above, the clutch operating device for a combine according to the present invention according to the solution 1 uses an electric motor capable of changing the rotation direction between the normal rotation direction and the reverse rotation direction, and a cam mechanism driven by the electric motor. , Sandwiching the neutral position where both the grain discharging clutch and the mowing clutch are disengaged, setting an operating range for operating the grain discharging clutch on one side of the neutral position and operating the mowing clutch on the other side The operation area is set. When the grain discharging clutch is operated by using a combination of the cam mechanism in which the operating range is set in this way and the forward / reverse direction of the electric motor, it is operated independently without the operation of the cutting clutch. Conversely, when operating the mowing clutch, it can be operated without the operation of the grain discharging clutch.
Therefore, there is an advantage that the operation can be performed independently without affecting the other side while sharing the electric motor and the cam mechanism for operating the grain discharging clutch and the cutting clutch.

[Solution 2]
The second solving means of the combine clutch operating device according to the present invention is, as described in claim 2, a reaping clutch for turning on and off the drive of the reaping and conveying device, a threshing clutch for turning on and off the threshing device, and a grain In the clutch operating device of the combine that operates the clutch for the grain discharge that turns on and off the drive of the storage device,
A cam mechanism for turning on and off each clutch, and an electric motor for driving the cam mechanism,
The cam mechanism is configured so that the rotation direction can be changed between the normal rotation direction and the reverse rotation direction by the electric motor, and one side operation is performed with a neutral position where all clutches are maintained at the disengagement position. Set the position where the grain discharge clutch is engaged and all other clutches are disengaged in the area, and the position where the grain discharge clutch is disengaged and the threshing clutch is engaged in the other operation area; The grain discharging clutch is disengaged, and the threshing clutch and the mowing clutch are set at the positions where the clutch is engaged.

[Action and effect]
In the combine clutch operating device of the present invention according to the above solution 2, an electric motor capable of changing the rotation direction between the forward rotation direction and the reverse rotation direction is used, and all cam mechanisms driven by the electric motor are used. An operation range for operating the grain discharge clutch on one side of the neutral position where the clutch is disengaged and an operation range for operating the mowing clutch on the other side, and the mowing clutch and the threshing clutch, The operating range for operating is set.
When the grain discharging clutch is operated by using a combination of the cam mechanism having the operation range set in this way and the forward / reverse rotation direction of the electric motor, it is independent without the operation of the clutch of the mowing and threshing system. Conversely, when operating the mowing and threshing clutch, it can be operated without the operation of the grain discharging clutch.
Therefore, there is an advantage that the operation can be performed independently without affecting the other side while sharing the electric motor and the cam mechanism for operating the clutch for grain discharging and the clutch of the threshing and threshing system. is there.

[Solution 3]
According to a third solving means of the clutch operating device of the combine according to the present invention, as described in claim 3, the cam mechanism has a side opposite to the side where the grain discharging clutch is engaged with the clutch in the neutral position. Further, there is a feature in that an operation position where the operation clutch of the feed chain is engaged is set.

[Action and effect]
The combine clutch operating device of the present invention according to the solving means 3 configured as described above has the following effects in addition to the same effects as the invention according to the solving means 1 or 2.
That is, by setting an operation range where the operation clutch of the feed chain is engaged on the opposite side across the neutral position from the side where the clutch for clutching the kernel is engaged, the clutch for discharging the kernel, While sharing the electric motor and cam mechanism for operating the clutch of the mowing and threshing system including the feed chain, the operation does not affect each other on the existing side and the other side of the grain discharging clutch. There is an advantage that can be done independently.

[Solution 4]
According to a fourth solving means of the combine clutch operating device in the walking type working machine of the present invention, as described in claim 4, the cam mechanism has a neutral position relative to the side where the grain discharging clutch is engaged. It is characterized in that an operating position for operating the weed pod to the overhanging side, which is the posture for cutting work, is set on the opposite side across the line.

[Action and effect]
In the combine clutch operating device of the present invention according to the solving means 4 configured as described above, in addition to the same operational effects as the invention according to the solving means 1, 2, or 3, the following operational effects are also exhibited. .
That is, for operating the weed culvert to the projecting side which is the cutting work posture or the storage side which is the non-working posture on the opposite side across the neutral position from the side where the clutch for clutching the grain is engaged By setting the operating range in which the operating mechanism operates, the electric motor and cam mechanism for operating the grain discharging clutch and the mowing and threshing system clutch including the weed cutting operation mechanism are shared However, there is an advantage that the operation can be performed independently without affecting each other on the existence side of the grain discharging clutch and the other side.

[Solution 5]
According to a fifth solving means of the combine clutch operating device in the walking type working machine of the present invention, as described in claim 5, the operation to the overhanging side of the weed culvert is the operation of entering the mowing clutch or the threshing clutch. It is structured to be performed in conjunction with the entering operation of the.

[Action and effect]
The combine clutch operating device of the present invention according to the solving means 5 configured as described above has the following effects in addition to the same effects as the above-described solving means 4 according to the invention.
In other words, switching between the overhanging posture and the retracted posture of the weed pod is related to the on / off operation of the mowing clutch or the threshing clutch, and the overhanging posture is set only during the mowing operation or the threshing operation. Can be switched automatically.
Therefore, the switching of the weed cocoon to the predetermined posture does not require a special operation mechanism dedicated to changing the weed cocoon posture, and the cutting and threshing system is a work closely related to the posture switching of the weed cocoon. Using an electric motor and a cam mechanism, there is an advantage that the posture can be switched without forgetting the operation by automating while avoiding the complicated structure and the enlargement of the apparatus.

[Solution 6]
According to a sixth solving means of the clutch operating device of the combine according to the present invention, as described in claim 6, the cam mechanism has a side opposite to the side where the grain discharging clutch is engaged with the clutch in the neutral position. Further, there is a feature in that an operation position at which a blower fan for reversing the blow direction with respect to the dustproof net is set.

[Action and effect]
In the combine clutch operating device of the present invention according to the solving means 6 configured as described above, in addition to the same effects as the invention according to any one of the solving means 1 to 5, the following action is provided. There is also an effect.
In other words, the operation area where the blower fan for reversing the blowing direction with respect to the dust net is set on the opposite side of the neutral position from the side where the clutch for clutching the grain is inserted. While sharing the electric motor and cam mechanism for operating the clutch for grain discharging and the clutch of the harvesting and threshing system including the mechanism for operating the blower fan, its operation is the presence side of the grain discharging clutch, There is an advantage that it can be performed independently without affecting each other on the other side.

Hereinafter, an example of an embodiment of the present invention will be described based on the drawings.
[Overall structure of the combine]
First, the overall structure of the combine to which the combine clutch operating device of the present invention is applied will be described.
FIG. 1 shows the entire side surface of the self-removing combine, and FIG. 2 shows the entire plane. This combine is provided with a machine body frame 1 formed in a frame shape by a square pipe material or the like, and a pair of left and right crawler type traveling devices 2 are provided at the lower part of the machine body frame 1. A cutting and conveying device 3 connected to the front and left front portions of the body frame 1 so as to be able to move up and down is provided, a threshing device 4 is mounted on the left rear portion of the body frame 1, and a grain storage device is mounted on the right rear portion of the body frame 1. 5, and further includes a driving unit 6 provided on the right front portion of the body frame 1, a boarding operation unit 11 formed on the upper side of the driving unit 6, and the like.

[Configuration of crawler travel device]
As shown in FIGS. 3 to 7, the pair of left and right crawler traveling devices 2 have a large number of grounding wheels 21 attached to the pair of left and right track frames 20, and a rubber crawler belt 22 is wound around the front end position in the traveling direction. The driving wheel 23 provided on the rear side is driven, and the crawler belt 22 is driven while being tensioned by the tensioning ring 24 on the rear end side.
Each of the grounding wheels 21 is pivotally supported on both front and rear sides of a swing frame 25 in which a pair of front and rear wheel bodies can swing a balance around a lateral fulcrum p1 at an intermediate position. The grounding wheel 21 on the front end side near the drive wheel 23 and the grounding wheel 21 on the rear end side near the tension wheel 24 are configured such that the position of the lateral fulcrum p1 can be adjusted up and down separately. Yes.

That is, the front end side grounding wheel 21 and the rear end side grounding wheel 21 are, as shown in FIGS. 4 to 6, a pair of left and right mounting bosses 15 fixed to the main frames 10 and 10 side of the body frame 1. On the other hand, a wheel support arm 16a and a drive cylinder side arm 16b are fixed to a pair of left and right rotating shafts 16 that are respectively inserted, and each grounded wheel is accompanied by the expansion and contraction operation of the drive cylinder 17. 21 is rocked about the axis p2 of each rotating shaft 16 so that the vertical height can be adjusted.
The abutting end portions of the left and right pivot shafts 16 and 16 are fitted into a common cylindrical member 18, and the abutting ends are connected to each other by a connecting screw 19 so as to be relatively rotatable. That is, the left and right rotating shafts 16 and 16 are connected to each other by the connecting screw 19, and the connecting screw 19 and the screw hole formed inside the rotating shafts 16 and 16 are axial ends of the rotating shafts 16 and 16. The couplings are such that they are not completely in contact with each other, and are screw-coupled so as to allow relative rotation of the respective rotation shafts 16 and 16.
And the resistance against the load which acts from the left and right wheel 21 side is held by holding the outside of both rotation shafts 16 and 16 with the cylindrical member 18 in a state where the left and right rotation shafts 16 and 16 are screwed together. , Higher than if they are not connected.

  As shown in FIGS. 4 to 6, the swing frame 25 is provided with a long hole 25a along a circular arc around the lateral axis p1 of the grounding wheel 21 at a connection position with the wheel support arm 16a. Even when the left and right wheel support arms 16a are fixed in position, the ground wheel 21 is allowed to swing to some extent.

Further, as shown in FIGS. 7A and 7B, at the attachment portion of the tension ring 24, the projecting end of the extension frame portion 20b that is removably fitted to the main frame portion 20a of the track frame 20 is provided. On the side, a shaft support portion 20c of the tension ring 24 is provided. A bracket 26 is formed on the lateral side of the main frame portion 20a so as to protrude outward from the machine body. The support plate member 27 is supported by the bracket 26 along the direction in which the extension frame portion 20b is withdrawn. It is extended.
The contact plate member 27 is extended in contact with the upper side of the shaft support portion 20c that holds the rotation shaft of the tension ring 24, and the load acts on the tension ring 24 supported in a cantilevered manner on the extension frame portion 20b. It has the role which assists support.

[Configuration of Airframe Frame]
As shown in FIG. 3, the machine body frame 1 includes a pair of left and right main frames 10 and 10 each having a rectangular pipe shape that is long in the front-rear direction, and the left and right track frames 20 of the crawler traveling device 2 are each in a plan view. A drive cylinder 17 located on the laterally outer side of the main frames 10 and 10 and operating the track frame 20 to move up and down is disposed on the inner side of the main frames 10 and 10.
Of the pair of left and right main frames 10.10 of the machine body frame 1 to which the crawler traveling device 2 is attached, a cover member 10a having a channel-like cross section is provided below the left main frame 10 having a rectangular pipe shape that is long in the front-rear direction. As shown in FIGS. 4 and 5, a lift cylinder 35 for raising and lowering the cutting part 3 is housed in the internal space.

As shown in FIG. 8, a threshing device 4 is mounted on the left rear portion and a grain storage device 5 is mounted on the right rear portion on the body frame 1 in a state of being distributed to both sides of the left and right main frames 10 and 10. The driving part 6 is provided in the right front part.
A clutch for controlling on / off control of various work clutches using the power of a common electric motor 70 at a position intermediate between the left and right main frames 10 and 10 and on the right side of the place where the left threshing device 4 exists. The operating device A is provided, and the location where the clutch operating device A is present is that when the grain storage device 5 is swung clockwise around the vertical axis y on the rear side to be in an open posture, It is deployed in a position where you can look into it from the right side.

[Composition of the motor section]
As shown in FIG. 8, the driving unit 6 includes an engine 60 mounted on the machine body frame 1, a cooling radiator 61, and a blower fan 62 that can blow air by switching the blowing direction with respect to the radiator 61. In addition, as shown in FIG. 1, an opening 63 for introducing outside air with a dustproof net is provided on the right outer side of the machine body at a location facing the blower fan 62 to suppress inhalation of dust from the outside. ing.
Although not shown in detail, the blower fan 62 includes an operation body 64 that can be slid on the right engine output shaft 60a, and the blade angle of the blower fan 62 is changed by sliding the operation body 64. This is a well-known device that is configured to be freely switchable between a forward direction and a reverse direction.

[Configuration of boarding operation section]
As shown in FIG. 2, the boarding operation unit 11 includes a shift lever 11A for performing forward / backward shift operation of the aircraft, and a steering operation lever 11B for steering the aircraft, and turning on and off the driving of various working devices. And an operation panel 11C for commanding the operation order.
The operation panel 11C is equipped with a threshing start button B1, a cutting and threshing start button B2, a grain discharge button B3, and a work end button B4. Each of these buttons B1, B2, B3, B4 controls the operation of a clutch operating device A, which will be described later, and controls the presence / absence of driving of various working devices and the driving start order.

That is, when the threshing start button B1 is operated, the threshing device 4 and the feed chain 42 are driven, and the other working devices are in a stopped state, and a hand-held threshing operation in a state where the machine body is stopped is possible. It becomes a state. When the harvesting / threshing start button B2 is operated, the harvesting / conveying device 3 is driven in addition to the above-described threshing device 4 and the feed chain 42, and the weed culm 9 is operated to the overhanging posture. It will be in the state operated so that a ventilation direction may reverse every predetermined time.
Further, when the grain discharge button B3 is operated, all the operations of the above-mentioned mowing and threshing work-related equipment are stopped, and only the grain storage device 5 is driven to enter a work state in which the grain is discharged.
When the work end button B4 is pressed, the drive of all the work devices that have been driven is stopped and the work state is finished.

[Composition of weed candy]
As shown in FIGS. 9 to 12, the weed ridge 9 is provided on the left lateral portion of the body frame 1 and is attached so as to swing up and down around the longitudinal axis z along the longitudinal direction of the body. A herbicidal posture that protrudes to the side of the aircraft to avoid being caught by the various devices on the frame 1 coming into contact with the planting stems, and a retracted posture that retracts and stores it inward of the aircraft. And the posture can be switched.
This weed cage 9 is a guide rod 90 that guides the planting stem 90 so as to come into contact with the planted stem pod and push it outward, and a support rod that connects the middle part of the guide rod 90 and the body frame 1 side. 91 and a switching mechanism 92 that changes the posture of the support rod 91.

As shown in FIGS. 10 to 12, the switching mechanism 92 is connected and fixed to the body frame 1 side, and is mounted with a fixed shaft 93 erected as a swing fulcrum on the body frame 1 side of the support rod 91. Bracket 94, a support plate 95 mounted on a fixed range around the fixed shaft 93 erected on the mounting bracket 94, and a rotatable around the same fixed shaft 93 as the support plate 95. A movable locking body 97 that is provided with a first pin 97a that penetrates a part of the support rod 91 and that is swing-operated integrally with the support rod 91, and the movable locking body. And a coil spring 98 that urges 97 toward the support plate 95 and the operation plate 96.
The support plate 95 has an arc-shaped long hole around the front-rear axis z formed by the axis of the fixed shaft 93 so as to allow the posture of the support plate 95 to change within a predetermined range. 95a is formed, and when the positioning bolt 94a mounted on the mounting bracket 94 is inserted into the elongated hole 95a, the posture changeable range of the support plate 95 is defined by the elongated hole 95a. It is limited within a predetermined angle range. The positioning bolt 94a is provided with a compression spring 94b that presses and biases the support plate 95 toward the mounting bracket 94, so that a sliding resistance due to friction is given to the change of the posture of the support plate 95. It is configured.

The operation plate 96 is provided with a locking pin 96a for locking an operation wire 9a for pulling and loosening by a cam mechanism 8 of the clutch operating device A described later. By connecting one end portion of the operation wire 9a, the operation force 9a is pulled up to the retracted posture side by the power of the clutch operation device A, and the operation wire 9a is moved by the clutch operation device A when operated to the weed action posture. By operating to the loose side, the operation is switched to the weeding posture by the weight of the weed ridge 9.
Further, another connecting cable 99 is connected to the support plate 95, and the support plate 95 is artificially moved by a pulling operation with an operation lever (not shown) connected to the other end side of the connecting cable 99. It is possible to rotate and change the posture of the weed ridge 9 in the weeding posture. In this way, when the support plate 95 is moved to the retracted position, in order to operate the weed fence 9 in the retracted position to the weeding action position, it is necessary to get off the aircraft and pull down the weed fence 9 artificially. By performing the operation, it is possible to change the posture to the original weeding posture against the frictional resistance due to the urging force of the compression spring 94b that gives resistance to the support plate 95.

As shown in FIGS. 11 and 12, the movable locking body 97 includes a channel-shaped member 97c that is bent so as to straddle the support plate 95 and the operation plate 96, and opposing pieces of the channel-shaped member 97c. Of the two pins provided so as to penetrate the first pin 97a, the first pin 97a located closer to the outer side of the machine body passes through the support rod 91 to connect the movable locking member 97 to the support rod 91 and It is also a rocking fulcrum of the stop body 97.
Then, a coil spring 98 is stretched between the other second pin 97b located closer to the body side and the fixed shaft 93, and the movable locking body 97 is moved around the axis of the first pin 97a. The support plate 95 and the operation plate 96 are mounted so as to be swingable and elastically biased toward the outer peripheral surface side.

  A large-diameter arc portion 95b having a constant curvature around the fixed shaft 93, a storage-side step portion 95c that enters the smaller-diameter side than the large-diameter arc portion 95b, and the large-diameter arc portion A large-diameter arc portion 96b having a diameter comparable to that of the large-diameter arc portion 95b of the support plate 95 at the outer peripheral edge portion of the operation plate 96. Is formed on the outer peripheral edge portion close to the overhanging side, the outer peripheral edge portion closer to the storage side is provided with a small-diameter small-diameter arc portion 96c, and a push-up cam surface 96e is formed by connecting them with a smooth curve, In addition, an extended-side engagement portion 96d having a large diameter is provided at the extended-side end portion of the large-diameter arc portion 95b, like the support plate 95.

Therefore, when the weed rod 9 in the weed action posture is operated to the retracting side by the pulling action of the clutch operating device A, the locking pin of the operation plate 96 in the weed action posture position shown in FIGS. 96a is pulled up by the operation wire 9a, and the operation plate 96 starts rotating around the longitudinal axis z of the fixed shaft 93, so that the push-up cam surface 96e of the operation plate 96 pushes the second pin 97b radially outward. Rotate.
11B, when the projecting side engaging portion 96d of the operation plate 96 reaches a position where it is engaged with the first pin 97a, the second pin 97b is moved from the storage side step portion 95c of the support plate 95. When the operation wire 9a is pulled, the operation plate 96 is rotated as shown in FIG. 11C, and the support rod 91 is largely retracted. Pull up.
On the other hand, when the operation wire 9a is loosened, the weed ridge 9 swings to the overhanging side by its own weight, and the operation plate 96 is rotated in the reverse order to the above and is operated to the weeding action posture position.

[Configuration of transmission system]
As shown in FIG. 8, the engine 60 is mounted on the body frame 1 in such a posture that the axial center direction of the output shaft 60 a is left and right. As shown in FIG. 13, the transmission from the engine 60 to the left and right crawler type traveling devices 2 is performed from the left end portion of the output shaft 60a of the engine 60 projecting toward the left and right central portion of the machine body. This is performed via a transmission system for traveling over the drive wheels 23 of the traveling device 2. The traveling transmission system includes a belt-type transmission 12, a hydrostatic continuously variable transmission 13 provided as a main transmission, and a gear-type transmission (not shown) incorporated in the transmission case 14 as an auxiliary transmission. , Etc.

  Each of the left and right crawler type traveling devices 2 swings a shift lever 11A provided in the boarding operation unit 11 in the front-rear direction, thereby switching between a stepless speed change operation and a forward / reverse movement by the hydrostatic continuously variable transmission 13. In addition, the steering operation lever 11B equipped in the boarding operation unit 11 is swung in the left-right direction, so that the gear-type transmission in the transmission case 14 moves straight, and the left and right turns slowly. It is configured to be able to switch between a state and a left and right sudden turning state.

The chopping and conveying device 3 is configured to transmit power after shifting by the hydrostatic continuously variable transmission 13 through a one-way clutch 13a, a belt tension type reaping clutch 30, or the like, thereby causing a plurality of pulling devices 31 and clipper type The cutting and conveying device 32, the cereal conveying device 33, and the like are driven, and with the traveling of the machine body, the plurality of weeding tools 34 mounted on the front end of the planted cereal halves are planted, and each pulling device 31 causes the planted culm after weeding, the cutting device 32 cuts the planted side of the planted culm, and the culm transporting device 33 lays the trimmed cereal from the standing posture and switches it to the posture. It is configured to be conveyed toward the rear threshing device 4, and the steering operation lever 11 </ b> B is swung in the front-rear direction so that the lifting and conveying device 3 can be moved up and down by the operation of the lift cylinder 35. Become There.
In addition, when the cutting speed in this cutting and conveying apparatus 3 is to be changed greatly not only according to the stepless speed change by the hydrostatic continuously variable transmission 13 but also according to the conditions of the field and the state of lying of the stems and the like. Is configured such that the shift operation of the shift gear can be performed by a shift operation of the shift gear by the cutting transmission mechanism 36 constituted by a dedicated gear transmission mechanism installed in the transmission case 14.

  The threshing device 4 is the power of the engine 60 transmitted through the belt-tension type threshing clutch 40, and the barrel 41 and the like are driven. It is constituted by a known structure that handles and processes the head side and supplies the grain obtained by the sorting process to the grain tank 51 of the grain storage device 5 via the first recovery screw (not shown). ing.

  The feed chain 42 is configured so that power from the engine 60 is transmitted by a transmission system branched from the transmission system to the threshing device 4 by a transmission belt 43 and via a tension clutch type feed chain clutch 44. It is. Then, the feed chain clutch 44 is arbitrarily operated to drive the threshing device 4 at a different timing from the start or end of driving.

  The grain storage device 5 includes a grain tank 51 and a grain discharge auger 52, and is configured such that the power of the engine 60 is transmitted to the grain discharge auger 52. That is, the transmission belt 54 is stretched over the input portion 53 of the grain storage device 5 from the portion of the output shaft 60a of the engine 60 that protrudes from the right lateral side toward the outer side of the machine body. A belt tension type grain discharging clutch 50 for turning on and off the power transmission is provided.

The Glen tank 51 has a working position where the whole is located behind the engine 60 around the longitudinal axis y provided at the rear part thereof, and a front part of the Glen tank 51 protrudes outward to the right of the fuselage frame 1 so that the rear side of the engine 60 It is configured to be able to swing and displace over a maintenance position that opens the position, and to be able to hold the position at the work position and the maintenance position by a lock mechanism (not shown).
The screw conveyor 55 and the input portion 53 for the grain discharge auger 52 provided at the bottom of the Glen tank 51 that swings and displaces in this way allow the Glen tank 51 to swing around the longitudinal axis y. It has a disengagement structure.

That is, as shown in FIG. 13, the input pulley 56 on which the transmission belt 54 is stretched, and the transmission shaft 57 that is spline-fitted to the input pulley 56 so as to be integrally rotatable and relatively slidable are provided in the machine body. It is supported by a bearing bracket 10b provided on the frame 1 side.
The power transmitted to the transmission shaft 57 is transmitted to an input transmission shaft 58 that is engaged and disengaged with respect to the transmission shaft 57, and the bevel gear 58 a of the input transmission shaft 58 and the screw conveyor 55 The screw conveyor 55 and the grain discharging auger 52 are transmitted via a bevel gear 55a provided on the shaft end side.
The input transmission shaft 58 is supported on the Glen tank 51 side, and includes a recessed engagement portion 58b that can be inserted into and removed from the transmission shaft 57, while the rotational power from the transmission shaft 57 is transmitted. Since it can be inserted and removed in the axial direction, engagement and disengagement associated with the swing of the Glen tank 51 around the longitudinal axis y can be allowed.
Reference numeral 59 in the drawing denotes a pressing spring for pressing and urging the transmission shaft 57 toward the input transmission shaft 58.

[Configuration of clutch operating device]
As shown in FIGS. 14 to 19, in the present invention, a cam-driven clutch operating device A is employed as a combine clutch operating device for turning on and off the clutches included in the above various working devices. The clutch operating device A includes a driving device 7 that generates a driving force and a cam mechanism 8 that is driven by the driving device 7.

The drive device 7 is an electric motor 70 as a power source, a gear mechanism 72 that transmits the power of the electric motor 70 to the cam mechanism 8, and a detection mechanism that detects the operating state of the cam mechanism 8 driven by the electric motor 70. The potentiometer 73 and a motor control circuit provided as a control program in the control device 100 composed of a microcomputer, which will be described later, as means for controlling the operation of the electric motor 70.
When the operation signals of the various operation buttons B1 to B4 provided on the control panel 11C are input to the control device 100, the electric motor 70 outputs a control command based on the operation signals from the control device 100, and the electric motor 70 70 is driven in the forward direction or the reverse direction. The driving force of the electric motor 70 is output as the rotational power of the output gear 74 attached to the motor output shaft 71. The gear mechanism 72 is configured by the output gear 74 and a gear portion 75 formed on a part of the outer periphery of the cam plate of the cam mechanism 8 described later.
The driving state of the cam mechanism 8 by the output gear 74 is detected by a potentiometer 73 provided at the shaft end of the cam shaft 80, and a feedback signal based on the detection result is transmitted to the control device 100.

The cam mechanism 8 is a cam plate group composed of a combination of a first cam plate 81, a second cam plate 82, and a third cam plate 83 mounted so as to rotate integrally with a common cam shaft 80. And a cam follower group in contact with each of the cam plates 81, 82, 83.
Among the cam follower group, the first cam plate 81 includes a Glen tank cam follower 84 that operates the grain discharging clutch 50 that is guided in contact with the camshaft 80 on the front side of the machine body, and a camshaft 80. There is also provided a threshing cam follower 85 for operating the threshing clutch 40 that is guided by contact on the rear side of the machine body.
The second cam plate 82 is in contact with the feed system cam follower 86 for operating the feed chain clutch 44 that is guided by contact with the camshaft 80 on the front side of the fuselage, and with the camshaft 80 on the rear side of the fuselage. A cutting system cam follower 87 for operating the guided cutting clutch 30 is provided.
For the third cam plate 83, there is no cam follower on the front side of the fuselage with respect to the camshaft 80, and a blower system cam follower 88 for operating the blower fan 62 that is in contact with and guided on the rear side of the fuselage with respect to the camshaft 80. Is provided. A gear portion 75 that constitutes the gear mechanism 72 together with the output gear 74 of the electric motor 70 is formed on a part of the outer peripheral edge of the third cam plate 83.

The cam followers 84 and 86 existing on the front side of the machine body from the camshaft 80 are respectively arranged in the longitudinal direction of the swinging pieces 84a and 86a bent in a U-shaped section with respect to the clutch case 76. A pivot shaft 77 is mounted so as to be able to be inserted and removed from the right lateral outer side. Further, rollers 84b and 86b are provided on the upper end sides in the longitudinal direction of the swinging pieces 84a and 86a so as to come into contact with the outer peripheral edges of the cam plates 81 and 82 while entering the bent U-shaped portion. Operation wires 50a and 44a for turning on and off the grain discharging clutch 50 and the feed chain clutch 44 are connected to the lower ends in the longitudinal direction of the swinging pieces 84a and 86a, respectively. .
Further, the swing piece 86a connected with the operation wire 44a for turning on and off the feed chain clutch 44 operates the weed basket 9 to the weeding action posture with its own weight as the feed chain clutch 44 is turned on. As described above, the operation wire 9a, which is pulling the weed basket 9 to the retracted posture side, is linked to the loose side.

  The cam followers 85, 87, 88 existing on the rear side of the machine body with respect to the camshaft 80 have lower end portions in the longitudinal direction of the swinging pieces 85 a, 87 a, 88 a formed to be bent in a U-shaped section, respectively. On the other hand, a pivot shaft 78 is mounted so as to be able to be inserted and removed from the right lateral outer side of the machine body. A roller 85b that contacts the outer peripheral side of the cam plates 81, 82, and 83 in the bent U-shaped portion at the intermediate portion in the longitudinal direction of the swinging pieces 85a, 87a, and 88a. , 87b, 88b are provided, and the threshing clutch 40 and the mowing clutch 30 are turned on and off at the upper ends in the longitudinal direction of the swinging pieces 85a, 87a, 88a, respectively, so that the blower fan 62 is switched between forward and reverse rotations. Operation wires 40a, 30a and 64a for operating the operation body 64 are connected.

The first cam plate 81 has, on its outer periphery, a glen tank system cam surface 81a for operating the glen tank system cam follower 84 and a threshing system cam surface 81b for operating the threshing system cam follower 85. It is formed at a location substantially opposed across the shaft 80.
The second cam plate 82 has a feed system cam surface 82a for operating the feed system cam follower 86 and a cutting system cam surface 82b for operating the cutting system cam follower 87 on the outer peripheral edge thereof. It is formed in the place which opposes on both sides.
The third cam plate 83 is provided with a blower system cam surface 83a for operating the blower system follower 88 on the outer peripheral edge thereof. The third cam plate 83, the first cam plate 81, A gear portion 75 for transmitting a driving force to the two cam plates 82 is formed.

[Operation by clutch operating device]
Next, the operation mode by the clutch operating device A will be described with reference to FIGS.
FIG. 17 shows the cam surfaces 81a, 81b, 82a of the cam plates 81, 82, 83 within the rotation angle range of the cam shaft 80 set by the attachment range of the gear portion 75 formed on the third cam plate 83. , 82b, 83a and the cam followers 84, 85, 86, 87, 88, the range in which the function appears is represented by an angle distribution diagram within the rotation angle range.
FIG. 18 is a time chart with the vertical axis representing the type of work device and the horizontal axis representing operation timing. FIG. 19 is a graph illustrating the associated operation state between each cam plate and the cam follower, with the horizontal axis indicating the type of work device and the vertical axis indicating the time axis.

  17 indicates a neutral position in which all the clutches and the like operated by the clutch operating device A are not operated to the operating side, and no working device is driven. Yes. A similar neutral position N is indicated by the same reference numeral N in FIGS. 18 and 19.

In FIG. 17, reference symbol “a” indicates that the first cam plate 81 is rotated counterclockwise from the neutral position N, and the grain tank system cam surface 81 a operates the grain tank system cam follower 84 to operate the grain discharge clutch 50. This indicates the position where is inserted, and corresponds to the position indicated by the same symbol a in FIG. Further, in FIG. 19, the first cam plate 81 and the Glen tank system cam follower 84 are shown in contact with each other at the level “a” shown at the top.
At this time, the positions of the second cam plate 82 and the third cam plate 83 are not directly shown in FIG. 17, but in FIG. 18, lines indicating the operations of the threshing clutch 40 and the grain discharging clutch 50. Are related to the first cam plate 81, and the line indicating the operation of the operating body 64 of the blower fan 62 is related to the third cam plate 83. Further, the line indicating the operation of the weed ridge 9 shown in FIG. 18 follows the operation of the second cam follower 86, so that it can be understood that it is related to the second cam plate 82. Therefore, also in FIG. 18, at the position a, only the grain discharge clutch 50 is “ON”, all the other clutches are “OFF”, and the blower fan 62 is in the forward rotation state. In this state, the air is not blown in the reverse direction, and the weed ridge 9 is not in the “open” position in the overhanging state but in the stored “closed” position.
In FIG. 19, the second cam follower 86 is in contact with the feed system cam surface 82 a of the second cam plate 82 at the stage a, but the feed chain clutch 44 is originally biased to the entry side. The feed system cam surface 82a operates the second cam follower 86 to the cut side to keep the feed chain clutch 44 in the cut state.

In FIG. 17, the symbol b indicates that the first cam plate 81 is rotated clockwise from the neutral position N, and the grain tank system cam surface 81 a moves to a position away from the grain tank system cam follower 84 and the grain is discharged. The threshing system cam surface 81b operates the threshing system cam follower 85 and the threshing clutch 40 is engaged.
In FIG. 18 as well, the position indicated by the same symbol b corresponds to the same state. Moreover, in FIG. 19, it has shown by the contact state of the 1st cam board 81 and the threshing system cam follower 85 in the step of the code | symbol b illustrated in the 3rd step from the top.
At this time, as shown in FIGS. 18 and 19, the second cam plate 82 maintains both the feed chain clutch 44 and the cutting clutch 30 in the clutch disengaged state.
Moreover, the 3rd cam board 83 is maintaining the normal rotation state of the ventilation fan 62, as shown in FIG.18 and FIG.19.

17, the first cam plate 81 is rotated clockwise from the neutral position N, the threshing system cam surface 81b operates the threshing system cam follower 85, and the threshing clutch 40 is engaged. Continue to maintain.
At this time, the cutting cam surface 82b of the second cam plate 82 that rotates clockwise operates the cutting cam follower 87, and at the same time, the feed cam surface 82a releases the cutting operation of the feed cam follower 86, Both the feed chain clutch 44 and the mowing clutch 30 are switched to the clutch-engaged state. Along with this, the feeding weed cam follower 86 whose cutting operation has been released is also switched to the overhanging side.
Also in FIG. 18, the position indicated by the same symbol c is in the same state, that is, the feed chain clutch 44 and the mowing clutch 30 are both switched to the clutch-engaged state, and the weed ridge 9 is switched to the overhanging side. Indicates the state.
FIG. 19 shows a state in which the threshing clutch 40 is maintained in the contact state between the first cam plate 81 and the threshing cam follower 85 at the stage indicated by the symbol c. At the same time, the cutting cam surface 82b of the second cam plate 82 operates the cutting cam follower 87. At the same time, the feed cam surface 82a cancels the cutting operation of the feed cam follower 86, and the feed chain clutch 44 and the cutting clutch 30 Are shown in a state where both are switched to the clutch engaged state.
Moreover, the 3rd cam board 83 is maintaining the normal rotation state of the ventilation fan 62, as shown in FIG.18 and FIG.19.

17, the first cam plate 81 is rotated clockwise from the neutral position N, and the threshing cam surface 81b operates the threshing cam follower 85 so that the threshing clutch 40 is engaged. Continue to maintain.
The cutting cam surface 82b of the second cam plate 82 that continues to rotate clockwise operates the cutting cam follower 87. At the same time, the feed cam surface 82a cancels the cutting operation of the feed cam follower 86, and the feed chain. Both the clutch 44 and the cutting clutch 30 are maintained in a state where they are switched to the clutch-engaged state. Along with this, the weed tub 9 is also switched to the overhanging side by the feed cam follower 86 whose cutting operation has been released.
At this time, the blower system cam surface 83a of the third cam plate 83 operates the blower system cam follower 88 to operate the operating body 64 of the blower fan 62 to the reverse side.
Also in FIG. 18, the position indicated by the same symbol d is in the same state, that is, the feed chain clutch 44 and the mowing clutch 30 are both engaged, and the weed 9 is switched to the overhanging side. , The operating body 64 of the blower fan 62 is being operated to the reverse side.
FIG. 19 shows a state in which the threshing clutch 40 is kept in contact with the first cam plate 81 and the threshing cam follower 85 in the stage indicated by the symbol d. At the same time, the cutting cam surface 82b of the second cam plate 82 operates the cutting cam follower 87. At the same time, the feed cam surface 82a cancels the cutting operation of the feed cam follower 86, and the feed chain clutch 44 and the cutting clutch 30 Both of them are switched to the clutch-engaged state, and the blower cam follower 88 of the third cam plate 83 is pushed by the blower system cam surface 83a to reverse the operating body 64 of the blower fan 62. Is operating on the side.

[Control system configuration]
As shown in FIG. 20, this is a power source of the reaping clutch 30, the threshing clutch 40, the feed chain clutch 44, the grain discharging clutch 50, the operating body 64 of the blower fan 62, and the cam mechanism 8 that operates the weed culm 9. The control device 100 including a control circuit that controls the operation of the electric motor 70 is configured as follows.

Each of the threshing start button B1, the mowing threshing start button B2, the grain discharge button B3, and the work end button B4 provided on the operation panel 11C of the boarding operation unit 11 is configured by an operation switch, and an operation signal thereof is a control device. 100 is input.
In the control device 100, the control circuit controls the electric motor 70 of the clutch operating device A based on the determination of which of the buttons B 1, B 2, B 3, B 4 is operated, and based on the detection result of the potentiometer 73. In response to this, a control command is output as follows.

When it is detected that the threshing start button B1 has been operated, the detection position of the camshaft 80 detected by the potentiometer 73 is more clockwise than the position of symbol b in FIG. 17 (referred to as the threshing start position b for convenience). If it is not a position away from the neutral position, the electric motor 70 drives the gear mechanism 72 to rotate the cam shaft 80 of the cam mechanism 8 clockwise. When the potentiometer 73 detects that the threshing start position b has been reached, a stop command is output to the electric motor 70.
When the detection position of the camshaft 80 detected by the potentiometer 73 is a position that is clockwise and farther from the neutral position than the threshing start position b, the electric motor 70 of the drive device 7 rotates in the reverse direction and the gear mechanism. 72 is driven to rotate the cam shaft 80 of the cam mechanism 8 counterclockwise. When the potentiometer 73 detects that the threshing start position b has been reached, a stop command is output to the electric motor 70. Further, when the detection position of the camshaft 80 detected by the potentiometer 73 is the threshing start position b, the drive command for the electric motor 70 is not output.
In this state, the threshing cam surface 81b of the first cam plate 81 operates the threshing cam follower 85, and the threshing clutch 40 is engaged and operated. Thereafter, when it is detected that the work end button B4 is operated, the electric motor 70 is driven to rotate the camshaft 80 counterclockwise. When it is detected that the neutral position N has been reached, the operation stops. To do.

When it is detected that the mowing and threshing start button B2 is operated, the detection position of the camshaft 80 detected by the potentiometer 73 is more than the position indicated by the symbol c in FIG. 17 (referred to as the mowing and threshing start position c for convenience). When the position is not clockwise and away from the neutral position, the electric motor 70 drives the gear mechanism 72 to rotate the cam shaft 80 of the cam mechanism 8 clockwise. When the potentiometer 73 detects that the cutting and threshing start position c has been reached, a stop command is output to the electric motor 70.
The detection position of the cam shaft 80 detected by the potentiometer 73 is away from the neutral position in the clockwise direction from the cutting and threshing start position c or the cutting and threshing start position c, and the position of the symbol d in FIG. If it is not further away from the neutral position in the clockwise direction than the reverse rotation position d), the drive command for the electric motor 70 is not output.
When the detection position of the cam shaft 80 detected by the potentiometer 73 is the blowing direction reverse position d, the electric motor 70 drives the gear mechanism 72 in the reverse rotation, and the cam shaft 80 of the cam mechanism 8 is counterclockwise. Rotate around. When the potentiometer 73 detects that the cutting and threshing start position c has been reached, a stop command is output to the electric motor 70.

In this state, the threshing system cam surface 81b of the first cam plate 81 operates the threshing system cam follower 85 so that the threshing clutch 40 is engaged and operated, and the reaping system cam of the second cam plate 82 is maintained. The surface 82b operates the cutting system cam follower 87, and at the same time, the feed system cam surface 82a cancels the cutting operation of the feed system cam follower 86, and switches both the feed chain clutch 44 and the cutting clutch 30 to the clutch-engaged state. ing. Further, the weed ridge 9 is also switched to the overhanging side by the feed cam follower 86 whose cutting operation has been released.
Then, when the mowing and threshing start button B2 is operated, a time counter in the control device 100 is operated, and the cam shaft 80 is rotated clockwise every predetermined time, so that the air blowing direction reverse position d Drive to reach. When the air flow direction reversal position d is reached, the air flow system cam surface 83a of the third cam plate 83 operates the air flow system cam follower 88, and the operation body 64 of the air flow fan 62 is operated for a predetermined time. Control to blow in the direction. This reverse airflow is temporary airflow for removing dust adhering to the dust-proof net during forward airflow, and the time is sufficiently shorter than the forward airflow time (several seconds). Degree). When the air blowing time in the reverse direction is completed, the electric motor 70 is reversed to operate the camshaft 80 counterclockwise to return to the original cutting and threshing start position c.
Thereafter, when it is detected that the work end button B4 is operated, the electric motor 70 is driven to rotate the camshaft 80 counterclockwise. When it is detected that the neutral position N has been reached, the operation stops. To do.

When it is detected that the grain discharge start button B3 has been operated, the detection position of the camshaft 80 detected by the potentiometer 73 is from the position a in FIG. 17 (referred to as the grain discharge position a for convenience). If the position is not counterclockwise and away from the neutral position, the electric motor 70 drives the gear mechanism 72 and rotates the cam shaft 80 of the cam mechanism 8 counterclockwise. When the potentiometer 73 detects that the grain discharge position a has been reached, a stop command is output to the electric motor 70.
When the detection position of the cam shaft 80 detected by the potentiometer 73 is the grain discharge position a, the drive command for the electric motor 70 is not output. In this state, the Glen tank system cam surface 81a of the first cam plate 81 operates the Glen tank system cam follower 84, and the grain discharging clutch 50 is engaged.
Thereafter, when it is detected that the work end button B4 is operated, the electric motor 70 is driven to rotate the camshaft 80 clockwise. When it is detected that the neutral position N is reached, the operation stops. To command.

  Although not shown in the figure, the boarding operation unit 11 is provided with an operating tool for the cutting transmission mechanism 36, and an operation signal from the operating tool is input to the control device 100. When it is determined whether the operation by the operation tool is the cutting high speed side or the cutting low speed side, the control for outputting an operation command so as to shift the cutting transmission mechanism 36 to the high speed side or the low speed side. A circuit is also provided in the control device 100.

[Other Embodiment 1]
Another embodiment of the clutch operating device A will be described with reference to FIGS.
FIG. 21 shows the cam surfaces 81a, 81b, 82a of the cam plates 81, 82, 83 within the rotation angle range of the cam shaft 80 set by the attachment range of the gear portion 75 formed on the third cam plate 83. , 82b, 83a and the cam followers 84, 85, 86, 87, 88, the range in which the function appears is represented by an angle distribution diagram within the rotation angle range.
FIG. 22 is a time chart with the vertical axis representing the type of work device and the horizontal axis representing operation timing. FIG. 23 is a graph illustrating the associated operation state between each cam plate and the cam follower, with the horizontal axis indicating the type of work device and the vertical axis indicating the time axis.
In this embodiment, compared to the configuration of the above-described best embodiment, the operating timing of the feed chain clutch 44 and the operating timing of the mowing clutch 30 are different, and not the operation of the blower fan 62 but the mowing transmission mechanism. The difference is that the operation 36 is performed by the cam mechanism 8.
Therefore, in this embodiment, although a specific structure is not illustrated, the operating shifter of the cutting transmission mechanism 36 is provided by urging to the low speed side, and the switching operation of the operating shifter to the high speed side is performed by the cam mechanism 8. It is.
Further, the operation of the weed ridge 9 is operated in conjunction with either the feed chain clutch 44 or the cutting clutch 30, or is operated using another operating tool without being linked to the cam mechanism 8. Therefore, in this embodiment, the description regarding the operation of the weed ridge 9 is omitted.

  21 indicates a neutral position in which all the clutches and the like operated by the clutch operating device A are not operated to the operating side, and any working device is not driven. Yes. A similar neutral position N is indicated by the same reference numeral N in FIGS.

In FIG. 21, symbol a indicates that the first cam plate 81 is rotated counterclockwise from the neutral position N, and the grain tank system cam surface 81 a operates the grain tank system cam follower 84 to operate the grain discharge clutch 50. This corresponds to the position indicated by the same symbol a in FIG. Further, in FIG. 23, the first cam plate 81 and the Glen tank system cam follower 84 are shown in contact with each other at the level “a” shown at the top.
At this time, the positions of the second cam plate 82 and the third cam plate 83 are not directly shown in FIG. 21, but in FIG. 22, lines indicating the operations of the threshing clutch 40 and the grain discharging clutch 50. Is related to the first cam plate 81, and the line indicating the operation of the cutting transmission mechanism 36 is related to the third cam plate 83.
Therefore, also in FIG. 22, at the position a, only the grain discharge clutch 50 is “ON”, all other clutches are “OFF”, and the cutting transmission mechanism 36 is in a low speed state. .
In FIG. 23, the second cam follower 86 is in contact with the feed system cam surface 82a of the second cam plate 82 at the stage a, but the feed chain clutch 44 is originally biased to the entry side. The feed system cam surface 82a operates the second cam follower 86 to the cut side to keep the feed chain clutch 44 in the cut state.

In FIG. 21, the symbol b indicates that the first cam plate 81 is rotated clockwise from the neutral position N, and the grain tank system cam surface 81 a moves to a position away from the grain tank system cam follower 84 and the grain is discharged. The threshing system cam surface 81b operates the threshing system cam follower 85 and the threshing clutch 40 is engaged.
In FIG. 22, the position indicated by the same symbol b corresponds to the same state. Further, in FIG. 23, the first cam plate 81 and the threshing cam follower 85 are shown in contact with each other at the stage b shown in the third stage from the top.
At this time, as shown in FIGS. 22 and 23, the second cam plate 82 maintains both the feed chain clutch 44 and the cutting clutch 30 in the clutch disengaged state.
Further, as shown in FIGS. 22 and 23, the third cam plate 83 maintains the low speed state of the cutting transmission mechanism 36.

21, the first cam plate 81 is rotated clockwise from the neutral position N, the threshing cam surface 81b operates the threshing cam follower 85, and the threshing clutch 40 is engaged. Continue to maintain.
At this time, in the second cam plate 82 that rotates clockwise, the feed cam surface 82a releases the cutting operation state of the feed cam follower 86, and switches the feed chain clutch 44 to the clutch engaged state.
At this time, the cutting system cam surface 82 b of the second cam plate 82 has not reached the state in which the cutting system cam follower 87 acts, and the cutting system cam follower 87 maintains the cutting state of the cutting clutch 30.
Also in FIG. 22, the position indicated by the same symbol c is in the same state, that is, the threshing clutch 40 and the feed chain clutch 44 are engaged, and the cutting clutch 30 is disengaged.
FIG. 23 shows a state in which the threshing clutch 40 is maintained in the contact state between the first cam plate 81 and the threshing cam follower 85 at the stage indicated by the symbol c. Along with this, the feed cam surface 82a of the second cam plate 82 releases the cutting operation of the feed cam follower 86, and the feed chain clutch 44 is switched to the clutch engaged state.
Further, as shown in FIGS. 22 and 23, the third cam plate 83 maintains the low speed state of the cutting transmission mechanism 36.

21, the first cam plate 81 is rotated clockwise from the neutral position N, and the threshing system cam surface 81b operates the threshing system cam follower 85 so that the threshing clutch 40 is engaged. Continue to maintain.
At this time, the feed system cam surface 82a of the second cam plate 82 that rotates clockwise releases the cutting operation of the feed system cam follower 86, and maintains the state in which the feed chain clutch 44 is switched to engage the clutch. At the same time, the cutting system cam surface 82b of the second cam plate 82 operates the cutting system cam follower 87, and switches the cutting clutch 30 to the clutch-engaged state.
Also in FIG. 22, the position indicated by the same reference symbol d is in the same state, that is, the feed chain clutch 44 and the mowing clutch 30 are both switched to the clutch engaged state.
FIG. 23 shows a state in which the threshing clutch 40 is maintained in the contact state between the first cam plate 81 and the threshing cam follower 85 at the stage indicated by d. At the same time, the cutting cam surface 82b of the second cam plate 82 operates the cutting cam follower 87. At the same time, the feed cam surface 82a cancels the cutting operation of the feed cam follower 86, and the feed chain clutch 44 and the cutting clutch 30 Are shown in a state where both are switched to the clutch engaged state.
Further, as shown in FIGS. 22 and 23, the third cam plate 83 maintains the low speed state of the cutting transmission mechanism 36.

21, the first cam plate 81 is rotated clockwise from the neutral position N, the threshing cam surface 81b operates the threshing cam follower 85, and the threshing clutch 40 is engaged. Continue to maintain.
The cutting cam surface 82b of the second cam plate 82 that continues to rotate clockwise operates the cutting cam follower 87. At the same time, the feed cam surface 82a cancels the cutting operation of the feed cam follower 86, and the feed chain. Both the clutch 44 and the cutting clutch 30 are maintained in a state where they are switched to the clutch-engaged state.
At this time, the cutting high-speed cam surface 83b (the same position as the blower system cam surface 83a shown in FIG. 15) of the third cam plate 83 is connected to the cutting high-speed cam follower 88b (the blower cam follower 88 in FIGS. 15 and 19). By operating the same configuration), the operation shifter of the cutting transmission mechanism 36 is operated to the high speed side.
22, the position indicated by the same symbol e is the same, that is, the feed chain clutch 44 and the cutting clutch 30 are both engaged, and the cutting transmission mechanism 36 is operated on the high speed side. Show.
FIG. 23 shows a state in which the threshing clutch 40 is maintained in the contact state between the first cam plate 81 and the threshing cam follower 85 at the stage indicated by symbol e. At the same time, the cutting cam surface 82b of the second cam plate 82 operates the cutting cam follower 87. At the same time, the feed cam surface 82a cancels the cutting operation of the feed cam follower 86, and the feed chain clutch 44 and the cutting clutch 30 Are both switched to the clutch engaged state, and the cutting high speed system cam surface 83b of the third cam plate 83 operates the cutting high speed system cam follower 88b to operate the cutting transmission mechanism 36. The shifter is operated on the high speed side.

In this embodiment, the operation panel 11C of the boarding operation unit 11 includes a pillow handling threshing start button B1, a cutting and threshing start button Bb2, a high-speed cutting and threshing button Bb3, a grain discharge button Bb4, and a work end button Bb5. Each is configured by an operation switch, and the operation signal is input to the control device 100.
In the control device 100, based on the determination of which of the buttons Bb1, Bb2, Bb3, Bb4, and Bb5 has been operated, and on the basis of the detection result of the potentiometer 73, the control circuit controls the electric motor of the clutch operating device A. A control command is output to 70 as follows.

When it is detected that the pillow handling threshing start button Bb1 has been operated, the detection position of the camshaft 80 detected by the potentiometer 73 is the position indicated by reference sign c in FIG. 21 (referred to as a pillow handling threshing start position c). If the position is not further away from the neutral position than clockwise, the electric motor 70 drives the gear mechanism 72 to rotate the cam shaft 80 of the cam mechanism 8 clockwise. When the potentiometer 73 detects that the pillow handling threshing start position c has been reached, a stop command is output to the electric motor 70.
When the detection position of the camshaft 80 detected by the potentiometer 73 is a position that is further away from the neutral position in the clockwise direction than the pillow handling threshing start position c, the electric motor 70 rotates in the reverse direction and the gear mechanism 72 is rotated. Driven to rotate the cam shaft 80 of the cam mechanism 8 counterclockwise. When the potentiometer 73 detects that the pillow handling threshing start position c has been reached, a stop command is output to the electric motor 70. In addition, when the detection position of the camshaft 80 detected by the potentiometer 73 is the pillow handling threshing start position c, a drive command for the electric motor 70 is not output.
In this state, the threshing cam surface 81b of the first cam plate 81 operates the threshing cam follower 85, and the threshing clutch 40 is engaged and operated. Thereafter, when it is detected that the work end button Bb5 is operated, the electric motor 70 is driven to rotate the camshaft 80 counterclockwise. When it is detected that the neutral position N is reached, the operation stops at that position. To do.

When it is detected that the mowing and threshing start button Bb2 is operated, the detection position of the camshaft 80 detected by the potentiometer 73 is more than the position indicated by the symbol d in FIG. 21 (referred to as the mowing and threshing start position d for convenience). When the position is not clockwise and away from the neutral position, the electric motor 70 drives the gear mechanism 72 to rotate the cam shaft 80 of the cam mechanism 8 clockwise. When the potentiometer 73 detects that the cutting and threshing start position d has been reached, a stop command is output to the electric motor 70.
When the detection position of the camshaft 80 detected by the potentiometer 73 is a cutting and threshing start position d or a position that is further away from the neutral position in a clockwise direction than the cutting and threshing start position d, the driving with respect to the electric motor 70 is performed. No command is output.
In this state, the threshing system cam surface 81b of the first cam plate 81 operates the threshing system cam follower 85 so that the threshing clutch 40 is engaged and operated, and the reaping system cam of the second cam plate 82 is maintained. The surface 82b operates the cutting system cam follower 87, and at the same time, the feed system cam surface 82a cancels the cutting operation of the feed system cam follower 86, and switches both the feed chain clutch 44 and the cutting clutch 30 to the clutch-engaged state. ing.
Thereafter, when it is detected that the work end button Bb5 is operated, the electric motor 70 is driven to rotate the camshaft 80 counterclockwise. When it is detected that the neutral position N is reached, the operation stops at that position. To do.

When it is detected that the high-speed mowing and threshing discharge start button Bb3 has been operated, the detection position of the camshaft 80 detected by the potentiometer 73 is the position of the symbol e in FIG. 21 (referred to as a high-speed mowing and threshing position e for convenience). If the position is not further away from the neutral position than clockwise, the electric motor 70 drives the gear mechanism 72 to rotate the cam shaft 80 of the cam mechanism 8 clockwise. When the potentiometer 73 detects that the high-speed mowing and threshing position e has been reached, a stop command is output to the electric motor 70.
In this state, the threshing system cam surface 81b of the first cam plate 81 operates the threshing system cam follower 85 so that the threshing clutch 40 is engaged and operated, and the reaping system cam of the second cam plate 82 is maintained. The surface 82b operates the cutting system cam follower 87, and at the same time, the feed system cam surface 82a cancels the cutting operation of the feed system cam follower 86, and switches both the feed chain clutch 44 and the cutting clutch 30 to the clutch-engaged state. ing.
Further, in response to the operation to the high-speed cutting / threshing position e, the high-speed cutting system cam surface 83a of the third cam plate 83 operates the cutting transmission system cam follower 88 so that the operation shifter of the cutting transmission mechanism 20 is moved to the high speed side. It is operating.
Thereafter, when it is detected that the work end button Bb5 is operated, the electric motor 70 is driven to rotate the camshaft 80 counterclockwise. When it is detected that the neutral position N is reached, the operation stops at that position. To do.

When it is detected that the grain discharge start button Bb4 has been operated, the detection position of the camshaft 80 detected by the potentiometer 73 is from the position a in FIG. 21 (referred to as the grain discharge position a for convenience). If the position is not counterclockwise and away from the neutral position, the electric motor 70 drives the gear mechanism 72 and rotates the cam shaft 80 of the cam mechanism 8 counterclockwise. When the potentiometer 73 detects that the grain discharge position a has been reached, a stop command is output to the electric motor 70.
When the detection position of the cam shaft 80 detected by the potentiometer 73 is the grain discharge position a, the drive command for the electric motor 70 is not output. In this state, the Glen tank system cam surface 81a of the first cam plate 81 operates the Glen tank system cam follower 84, and the grain discharging clutch 50 is engaged.
Thereafter, when it is detected that the work end button Bb5 is operated, the electric motor 70 is driven to rotate the camshaft 80 clockwise. When it is detected that the neutral position N is reached, the operation stops. To command.

[Second embodiment]
Another embodiment of the clutch operating device A will be described with reference to FIG.
FIG. 24 is a time chart with the vertical axis representing the type of work device and the horizontal axis representing operation timing.
In this embodiment, a configuration similar to the configuration described in [1 of another embodiment] is basically adopted, but the feed chain clutch is compared with the configuration of [1 of another embodiment]. They are different in that there is no difference between the operation timing of 44 and the operation timing of the cutting clutch 30 and that the operation of the weed cutter 9 can be performed by the cam mechanism 8.
Therefore, in this embodiment, although a specific structure is not illustrated, the first cam plate 81, the feed chain clutch 44, and the cutting clutch that operate the grain discharging clutch 50 and the threshing clutch 40 illustrated in the above-described best embodiment. In addition to the second cam plate 82 for operating 30 and the third cam plate 83 for operating the cutting speed change mechanism 36, a fourth cam plate (not shown) for operating the weed ridge 9 is provided. It also has a cam follower and operation wire.
Moreover, in this other embodiment 2, the pillow handling threshing start button Bb1, the mowing threshing start button Bb2, the high speed mowing threshing button Bb3, the grain discharge button Bb4, and the work end button provided in the operation panel 11C of the boarding operation unit 11 are provided. Of Bb5, when the pillow handling threshing start button Bb1 is pressed, it is operated to the position of symbol b in FIG. 24. In this state, only the threshing clutch 40 is engaged and the feed chain clutch 44 is still engaged. It has not been. Therefore, it is not in a state where so-called normal pillow handling threshing is possible, but it is used when it is desired to continue driving only the threshing device 4.

  Referring to the drawings, the position of the symbol N shown in FIG. 24 is a state in which all the clutches and the like operated by the clutch operating device A are not operated to the operating side, and any working device is not driven. The neutral position is shown.

24, the first cam plate 81 is rotated counterclockwise from the neutral position N, and the grain tank system cam surface 81a operates the grain tank system cam follower 84 to operate the grain discharge clutch 50. The first cam plate 81 and the Glen tank system cam follower 84 are in contact with each other, and the grain discharging clutch 50 is engaged.
At this time, at the position a, only the grain discharging clutch 50 is “ON”, all the other clutches are “OFF”, and the cutting speed change mechanism 36 is in the “low speed” state, so 9 is not the “open” position in the overhanging state but the stored “closed” position.

24, the first cam plate 81 is rotated clockwise from the neutral position N, and the grain tank system cam surface 81a shifts to a position away from the Glen tank system cam follower 84, and the grain is discharged. The threshing system cam surface 81b operates the threshing system cam follower 85 and the threshing clutch 40 is engaged.
At this time, the fourth cam plate for operating the weed rod 9 switches the position of the weed rod 9 from closed to “open”, but the second cam plate 82 is configured to disengage both the feed chain clutch 44 and the cutting clutch 30. The third cam plate 83 also maintains the low speed state of the cutting transmission mechanism 36.

24, the first cam plate 81 is rotated clockwise from the neutral position N, the threshing system cam surface 81b operates the threshing system cam follower 85, and the threshing clutch 40 is engaged. Continue to maintain.
At this time, the cutting cam surface 82b of the second cam plate 82 that rotates clockwise operates the cutting cam follower 87, and at the same time, the feed cam surface 82a releases the cutting operation of the feed cam follower 86, Both the feed chain clutch 44 and the mowing clutch 30 are switched to the clutch-engaged state. Further, the weed ridge 9 that has been operated to “open” by the fourth cam plate also maintains the open posture in the overhanging state. The third cam plate 83 keeps the cutting transmission mechanism 36 in a low speed state.

24, the first cam plate 81 is rotated clockwise from the neutral position N, the threshing cam surface 81b operates the threshing cam follower 85, and the threshing clutch 40 is engaged. Continue to maintain.
The cutting cam surface 82b of the second cam plate 82 that continues to rotate clockwise operates the cutting cam follower 87. At the same time, the feed cam surface 82a cancels the cutting operation of the feed cam follower 86, and the feed chain. Both the clutch 44 and the cutting clutch 30 maintain the clutch-engaged state. Further, the weed ridge 9 that has been operated to “open” by the fourth cam plate also maintains the open posture in the overhanging state.
At this time, the cutting transmission system cam surface 83a of the third cam plate 83 operates the cutting transmission system cam follower 88 to switch the cutting transmission mechanism 36 to the “high speed” state.

In [Second Embodiment 2], the fourth cam plate for operating the weed ridge 9 in the embodiment shown in FIG. 24 has been described by the solid line in FIG. 24. For example, FIG. As indicated by the dotted line inside, the cam surface shape of the 4th cam plate is changed so that the posture change of the weed ridge 9 from “closed” to “open” is performed gently. May be.
In [Second Embodiment], the operation timings of the feed chain clutch 44 and the reaping clutch 30 may be different as described in [First Embodiment].

[3 of another embodiment]
In the best embodiment, the feed chain clutch 44 is biased to the entry side and operated to the cut side by contact with the second cam plate 82. However, the present invention is not limited to this. A structure may be adopted in which the chain clutch 44 is urged to the cut side and is operated to the entrance side by contact with the second cam plate 82, and another cam plate is used as a configuration for that purpose. Or the shape of the cam surface of the cam plate may be devised.

[4 of another embodiment]
The number of cam plates and the number of cam followers of the cam mechanism 8 may be appropriately changed according to the number of devices that the cam mechanism 8 operates.

[5 of another embodiment]
In the neutral position N of the cam mechanism 8, an embodiment in which all the working devices are in a stopped state (however, at a low speed position with respect to the cutting shift and at a retracted state with respect to the weed cutting), for example, only the threshing clutch 40 is operated. It is also possible to configure to maintain this state. At this time, when the switching operation from the threshing operation state to the grain discharging operation state is performed, the operation of the threshing clutch 40 at the neutral position N is maintained, and the threshing clutch 40 is turned off when the grain discharging state is reached. When switching from the state to the neutral position N or the threshing work state, it is preferable to stop the operation of the threshing clutch 40 at the neutral position N.

[6 of another embodiment]
The operation tool provided in the operation panel 11C for instructing on / off of driving of various working devices and the operation order is not limited to the push buttons B1 to B4 (or Bb1 to Bb5) shown in each of the above-described embodiments, but a dial switch. In addition, it is possible to adopt an appropriate configuration such as detecting a command work by detecting the operation position of the operation lever.

[7 of another embodiment]
The number of electric motors 70 in the clutch operating device A does not necessarily have to be a single one, and a plurality of electric motors may be used when the number of devices to be operated or the operation target devices are located far apart. It is also possible to use 70. However, the number of electric motors 70 used is smaller than the number of cam plates used for the cam mechanism 8.

Overall side view of self-removing combine Overall plan view of self-decomposing combine Plan view showing the traveling device part Front view showing part of the traveling device Side view showing a part of the traveling device Side view showing the traveling device A part of the traveling device is shown, (a) is a side view, (b) is a plan view. Plan view showing the fuselage frame Side view showing the weed ridge part Rear view showing the attachment part It is a rear view which shows the attaching part of a weed fence, (a) shows a weeding action attitude | position, (b) shows the storage start state from a weeding action attitude | position, (c) shows a storing attitude | position. Sectional view showing the attachment part Schematic diagram showing the transmission system Plan view showing the clutch operating device Side view showing the clutch operating device Development view showing clutch operating device Diagram showing the operation mode of the clutch operating device Time chart showing the mode of operation of the clutch operating device Explanatory drawing which shows the operation form of a clutch operation device Block diagram showing control configuration The diagram which shows the action | operation form of the clutch operating device by another embodiment Time chart showing the operation mode of the clutch operating device according to another embodiment Explanatory drawing which shows the action | operation form of the clutch operation apparatus by another embodiment. The diagram which shows the action | operation form of the clutch operating device by another embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Airframe frame 2 Crawler type traveling device 3 Harvesting and conveying device 4 Threshing device 5 Grain storage device 7 Drive device 8 Cam mechanism 9 Weeding shear 30 Harvesting clutch 36 Cutting speed change mechanism 40 Threshing clutch 42 Feed chain 44 Feed chain clutch 50 Grain Discharge clutch 51 Glen tank 62 Blower fan 64 Operating body 70 Electric motor 73 Potentiometer 80 Cam shaft 81 First cam plate 82 Second cam plate 83 Third cam plate A Clutch operating device

Claims (6)

A clutch operating device for a combine that operates a harvesting clutch that turns on and off the drive of the harvesting conveyance device and a grain discharge clutch that turns on and off the drive of the grain storage device,
A cam mechanism for turning on and off each clutch, and an electric motor for driving the cam mechanism,
The cam mechanism is configured to be capable of changing the rotation direction between the normal rotation direction and the reverse rotation direction by the electric motor, and the neutral position where both the cutting clutch and the grain discharging clutch are maintained at the cutting position. In the operation area on one side, the position where the grain discharging clutch is engaged and the mowing clutch is disengaged is set, and in the other operation area, the grain discharging clutch is clutched and the mowing clutch is clutched. A combine clutch operating device characterized in that a position to enter is set. A clutch operating device for a combine that operates a reaping clutch that turns on and off the drive of the reaping and conveying device, a threshing clutch that turns on and off the drive of the threshing device, and a grain discharge clutch that turns on and off the drive of the grain storage device,
A cam mechanism for turning on and off each clutch, and an electric motor for driving the cam mechanism,
The cam mechanism is configured so that the rotation direction can be changed between the normal rotation direction and the reverse rotation direction by the electric motor, and one side operation is performed with a neutral position where all clutches are maintained at the disengagement position. Set the position where the grain discharge clutch is engaged and all other clutches are disengaged in the area, and the position where the grain discharge clutch is disengaged and the threshing clutch is engaged in the other operation area; A combine clutch operating device in which a position at which the grain discharging clutch is disengaged and the threshing clutch and the mowing clutch are engaged is set.   The combination mechanism according to claim 1 or 2, wherein the cam mechanism has an operation position where the operation clutch of the feed chain is engaged on the opposite side of the neutral position from the side where the grain discharge clutch is engaged. Clutch operating device.   In the cam mechanism, an operation position for operating the weed pod to the overhanging side, which is the posture for cutting work, is set on the opposite side of the neutral position from the side where the clutch for clutching the grain is engaged. The combine clutch operating device according to claim 1, 2, or 3.   5. The combine clutch operating device according to claim 4, wherein the operation to the overhanging side of the weed pod is performed in conjunction with the engagement operation of the mowing clutch or the engagement operation of the threshing clutch.   The cam mechanism has an operation position at which a blower fan for reversing the blowing direction with respect to the dust-proof net is set on the opposite side of the neutral position from the side where the clutch for clutching the grain is inserted. The combine clutch operating device according to any one of Items 1 to 5.

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