JP5081055B2 - Combine - Google Patents

Description

  In order to intermittently transmit power to these working devices in a combine equipped with a working device such as a cutting and conveying unit, a threshing device, and a grain storage device on a traveling machine body equipped with a traveling device. The present invention relates to an improvement of a combine equipped with a clutch operating device for turning on and off a working clutch.

As the above-described combine, 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] Regardless of the reaping clutch or the threshing clutch, the driving clutch of the screw conveyor for discharging the grain for taking out the grain in the grain tank to the outside is activated independently and manually. What can be turned on and off by an electric motor (see Patent Document 2).

JP 2001-224229 A (paragraphs [0015], [0016], [0018], FIG. 1, FIG. 3, FIG. 4, FIG. 5) 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 is set as predetermined by the linkage operation of the cam plate of the cam mechanism and the cam follower, and used in a state in accordance with the work form. This is advantageous in that it can be performed.
However, in the structure described in Patent Document 1, as shown in FIG. 1 in the publication of Patent Document 1, the position where the clutch operating device including the electric motor and the cam mechanism is located is close to the control. Therefore, when performing the maintenance work, it is necessary to remove and open the covers near the control unit, which requires a lot of work for the maintenance work. In addition, even if the cover is opened near the control unit so that maintenance work can be performed, the work device to be operated by the clutch operating device including the electric motor and the cam mechanism is provided at the location of the clutch operating device. Because it is a position that is far away from the position near the control section, it is not possible to maintain the related structural parts other than the very close part of the clutch operating device. It was necessary to decompose other parts.

  Moreover, in the thing of the structure described in the said patent document 2, in a combine provided with the clutch operation apparatus of the structure which turned on and off the clutch for grain discharge with the driving force of an electric motor instead of a harvesting clutch or a threshing clutch, A technique relating to the point that the clutch operating device is disposed at a position where maintenance is easy in a state where the Glen tank is switched to an open posture is disclosed. However, this is simply a dedicated clutch operating device for turning on and off a single grain discharging clutch in the vicinity of the grain storage device that is the operation target. In the case of an operation target, the arrangement configuration is not described.

  An object of the present invention is to use a cam mechanism driven by an electric motor so that a plurality of work clutches can be operated lightly and at a predetermined timing, and the arrangement position of the clutch operating device is devised. Therefore, the present invention is to provide a combine that facilitates maintenance work easily.

[Solution 1]
The technical means of the present invention taken to solve the above problems are as follows :
On the machine frame of its own run fuselage, with placing and conveying device and the driver's section cutting the body front side, arranged distributed a threshing device and a grain storage device to the left and right aft body side, the grain storage In the combine that is configured so that the Glen tank of the device can be rotated to the outside of the aircraft with the vertical axis on the rear side of the aircraft as the center of rotation,
A plurality of working clutches for interrupting power to each working device deployed on the machine frame;
Equipped with a clutch operating device comprising a cam mechanism for turning on and off the plurality of working clutches, and an electric motor for operating the cam mechanism,
The clutch operating device, in adjacent intervals between the grain tank and the threshing apparatus, Ri placed before Symbol machine body on the frame Thea,
As the plurality of working clutches, comprising: a grain discharging clutch that turns on and off the drive of the grain storage device; and a cutting clutch that turns on and off the drive of the cutting and conveying device,
The cam mechanism is configured such that the rotation direction can be changed between the normal rotation direction and the reverse rotation direction by the electric motor, and the reaping clutch and the grain discharging clutch are both maintained in the cutting position. The position where the grain discharging clutch is engaged and the reaping clutch is disengaged is set in one operation area, and the grain discharging clutch is disengaged in the other operation area. A position where the cutting clutch is engaged is set .

[Action and effect]
As described above, in the combine according to the present invention according to the solution 1, the clutch operating device is located on the machine body frame at a location far from the vertical axis serving as the rotation center of the Glen tank within the adjacent interval between the threshing device and the Glen tank. Therefore, it is easy to deploy the clutch operating device itself at a position relatively close to the plurality of working clutches provided in the combine. In other words, since it is deployed on the fuselage frame where a large number of transmission systems are deployed relatively near the center of the aircraft, the clutch operating device is also deployed near the various work clutches. There is an advantage that the transmission structure from the operating device to various working clutches can be easily simplified.
Moreover, when the Glen tank, which occupies a relatively large area on the fuselage frame, is rotated around the longitudinal axis to be in an open posture, not only the clutch operating device but also a wide range of operating systems and transmission systems related to the clutch operating device. Can be opened to the outside, which has the advantage of facilitating maintenance work.

In addition , the combine according to the present invention according to the solving means 1 also has the following effects.
In other words, while using an electric motor capable of changing the rotation direction between the normal rotation direction and the reverse rotation direction, the cam mechanism driven by the electric motor has a neutral position where both the grain discharging clutch and the mowing clutch are disengaged. An operation range for operating the grain discharging clutch is set on one side of the neutral position, and an operation range for operating the cutting clutch is set on the other side. 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 in the combine of the present invention is :
As the plurality of working clutch, further, Bei example a threshing clutch for turning on and off the driving of the threshing apparatus, and a feed chain clutch for turning on and off the driving of the feed chain, and
The cam mechanism, across the neutral position where the clutch of all hands are kept off position, the one on the operation area side, the grain discharge clutch in clutch engaging, the reaper clutch, the threshing clutch, and sets the position of each the clutch disengaging of the feed chain clutch, the operation range of the other side, the grain discharge clutch in clutch disengaging, the reaper clutch, the threshing clutch, and the feed chain clutch The position where each of the clutch is engaged is set,
Further, the position at which contains the said threshing clutch and the feed chain clutch, it is characterized in that the reaping clutch is set closer to the neutral position than the inlet Ritonaru position.

[Action and effect]
As described above, the combine according to the present invention according to the solving means 2 also has the following effects.
That is, an electric motor capable of changing the rotation direction between the normal rotation direction and the reverse rotation direction is used, and the neutral position where all the clutches are disengaged is sandwiched by the cam mechanism driven by the electric motor. An operating range for operating the grain discharging clutch is set on one side, an operating range for operating the mowing clutch, and an operating range for operating the mowing clutch and the threshing clutch are set on the other side.
By using a combination of the cam mechanism having the operation range set in this way and the forward / reverse direction of the electric motor, when operating the grain discharge clutch, the mowing / threshing system clutch is not operated. It can be operated independently, and 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.
Further, the position at which contains the threshing clutch and feed chain clutch, reaper since the clutch has been set on the side close to the neutral position than the inlet Ritonaru position, in a state enters and a threshing clutch and feed chain clutch, reaper A state where the clutch is disengaged can be easily displayed. Therefore, there is also an advantage that it is easy to switch to a use state in which a pillow handling operation that drives only the threshing device and the feed chain is performed.

[Solution 3 ]
In the third solving means in the combine of the present invention,
On the aircraft frame of the self-propelled aircraft, the cutting and conveying device and the boarding operation unit are arranged on the front side of the aircraft, and the threshing device and the grain storage device are distributed and arranged on the left and right of the aircraft rear side, and The grain storage device Glen tank is a combine that is configured to be rotatable to the outer side of the fuselage with the vertical axis on the rear side of the fuselage as the center of rotation,
A plurality of working clutches for interrupting power to each working device deployed on the machine frame;
A clutch operating device comprising a cam mechanism for turning on and off the plurality of working clutches, and an electric motor for operating the cam mechanism;
The clutch operating device is disposed on the machine body frame at a position within an adjacent interval between the threshing device and the grain tank in the left-right direction of the machine body, and at a position closer to the front side of the grain tank in the machine body front-rear direction. And
The operation wires that connect the plurality of working clutches and the cam mechanism are characterized in that they are connected to the cam mechanism from the front side of the body in a state along the front-rear direction of the body .

[Solution 4]
further,
A clutch case covering the cam mechanism is provided;
It is preferable that the clutch case is located behind the front end of the Glen tank in the longitudinal direction of the machine body.
[Solution 5]
further,
The operation wire is provided with an inner wire and an outer wire,
The clutch case includes a fixing portion to which the outer wire is connected,
It is preferable that the fixing portion is located behind the front end of the Glen tank in the longitudinal direction of the machine body.
[Solution 6]
further,
A bracket for fixing the outer wire is attached to the front end portion of the clutch case as the fixing portion,
It is preferable that the bracket is located behind the front end of the Glen tank in the longitudinal direction of the body.
[Solution 7]
Also,
It is preferable that the electric motor is disposed side by side with the cam mechanism so as to be positioned on the threshing device side with respect to the cam mechanism in the left-right direction of the machine body.
[Solution 8]
Also,
The detection mechanism for detecting the operating state of the cam mechanism is preferably arranged side by side with the cam mechanism so as to be positioned on the grain storage device side with respect to the cam mechanism in the left-right direction of the machine body. is there.
[Solution 9]
Also,
It is preferable that the plurality of working clutches are disposed in front of the cam mechanism.
[Solution 10]
Also,
It is preferable that a feed chain clutch for turning on and off the drive of the feed chain is provided as the plurality of working clutches.
[Solution 11]
Also,
As the plurality of working clutches, it is preferable that a grain discharging clutch for turning on and off the driving of the grain storage device is provided.

  Hereinafter, an example of an embodiment of the present invention will be described based on the drawings.

[Overall structure of the combine]
First, the structure of the entire combine to which 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. 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 Airframe Frame]
Body frame 1, as shown in FIG. 3, comprises a long square pipe-like right and left pair of main frames 10, 10 in the front-rear direction, the right and left track frames 2A of the crawler type traveling device 2, respectively in plan view A drive cylinder 15 located on the laterally outer side of the main frames 10 and 10 for raising and lowering the track frame 2A is disposed on the inward side of the main frames 10 and 10.

As shown in FIG. 4, 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 machine 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. An operating device A is provided, and the clutch operating device A is located on the right side of the fuselage when the grain storage device 5 is swung around the rear vertical axis y to be in an open posture. It is deployed in a position where it is possible to look into it from the side.

  As shown in FIG. 9, the front side of the machine frame 1 supports a horizontal cylinder portion 31 a of the cutting main frame 31 having a T-shape in a plan view of the cutting and conveying device 3, and the horizontal axis x A cutting frame support base 17 that supports the vertical cylindrical portion 31b that is rotated forward and backward so as to be swingable up and down is connected and fixed by a tightening bolt 18. The cutting main frame 31 is internally provided with a power transmission shaft (not shown) for transmitting power to the pulling device 32 and the cutting device 33 of the cutting conveyance device 3.

[Composition of the motor section]
As shown in FIG. 4, the driving unit 6 is an example of an engine 60 mounted on the body frame 1, a cooling radiator 61, and a blower fan capable of blowing air by switching the blowing direction with respect to the radiator 61 in the forward and reverse directions. As shown in FIG. 1, the right outer side of the machine body at the location facing the blower fan 62 is for introducing outside air with a dustproof net for suppressing the inhalation of dust from the outside. An opening 63 is provided.
The blowing fan 62, details are not shown, comprises a slide operably operating member 64 on the right side of the output shaft 60a of the engine 60, changes the angle of the blades of the blower fan 62 by the slide operation of the operation member 64 Thus, the air blowing direction is a well-known one that can be switched 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.
This operation panel 11C is equipped with a pillow handling threshing start button B1, a cutting / threshing start button B2, a high-speed cutting / threshing start button B3, a grain discharge start button B4, and a work end button B5. Each of these buttons B1, B2, B3, B4, and B5 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 pillow handling 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 the hand-held threshing operation in a state where the machine body is stopped is performed. It becomes possible. 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.
Further, when the high-speed mowing and threshing start button B3 is operated, the mowing and shifting mechanism 20 is switched to the high speed side, and the above mowing and threshing work can be performed at a high speed.
Furthermore, if the grain discharge start button B4 is operated, all the operations of the above-mentioned cutting and threshing-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 B5 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. 5 to 8, the weed ridge 9 is provided on the left side of the body frame 1 and is attached so as to be swingable 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. 6 and 7, 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. 6 and 7, 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.

Accordingly, 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 FIG. 6 and FIG. 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.
Then, as shown in FIG. 8B, when the protruding 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. 8C, 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. 4, an engine 6 0 is mounted to the body frame 1 in a posture in which the axial direction of the output shaft 60a is horizontally oriented. Its transmission from the engine 6 0 to the crawler type traveling device 2 of the left and right, as shown in FIG. 13, from the left end of the output shaft 60a of the engine 6 0 projecting toward the horizontal center portion of the fuselage, each of right and left This is performed through a transmission system for traveling over the drive wheels 2B of the crawler 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 such that the power after the shift by the hydrostatic continuously variable transmission 13 is transmitted via the one-way clutch 28, the belt tension type reaping clutch 30, and the like, so that a plurality of pulling devices 32, clippers type of the bush ToSo location 33, and the like culms conveying device 34 is driven, with the running of the machine body, it was separated grass planting culms multiple partial grass instrument 35 that is provided has fallen to its front end, each The pulling device 32 causes the planted culm after weeding, the mowing device 33 cuts the planted side of the planted culm, and the culm transporting device 34 lays the mowing cereal from the standing posture. It is comprised so that it may convey toward the threshing apparatus 4 of the back switching, and the raising / lowering operation of the cutting conveyance apparatus 3 is carried out by the action | operation of the lift cylinder 16 by swinging the steering operation lever 11B to the front-back direction. I can do it That.

The power transmission structure to the cutting and conveying apparatus 3 will be described in detail.
As shown in FIGS. 13 and 9, the power after the shift by the hydrostatic continuously variable transmission 13 is output from the cutting output pulley 36a provided on the upper lateral side of the mission case 14, as shown in FIG. Further, the cutting output pulley 36a, the cutting input pulley 36b supported by the cutting main frame 31, the transmission belt 37 wound between the cutting output pulley 36a and the cutting input pulley 36b, and the tension It is transmitted to a power transmission shaft (not shown) in the cutting main frame 31 via a cutting clutch 30 constituted by a wheel 38.
A tension arm 39 for pressing and urging the tension wheel 38 of the reaping clutch 30 toward the transmission belt 37 is a horizontal shaft 17a whose intermediate portion in the length direction is a swinging fulcrum with respect to the reaping frame support base 17. A tension ring 38 that is pivotally supported around the transmission belt and moves in a distance with respect to the transmission belt 37 is attached to one end side, and an operation wire 30a is connected to the other end side. Therefore, when the operation wire 30a is pulled by the cam mechanism 8 of the clutch operating device A described later, the tension wheel 38 is pressed against the outer peripheral surface of the transmission belt 37 from the lower side, and the clutch is engaged. When the operation wire 30a is loosened, the tension wheel 38 shifts to the lower side away from the outer peripheral surface of the transmission belt 37 and the clutch is disengaged.

The cutting speed in the cutting and conveying apparatus 3 is changed not only by the stepless transmission by the hydrostatic continuously variable transmission 13 but also by the high and low two-stage cutting transmission mechanism 20 provided in the mission case 14. Can do.
As shown in FIGS. 10 to 12, the cutting gear change mechanism 20 includes a shift gear 22 that is spline-fitted to a support shaft 21 of a cutting output pulley 36 a provided on the upper lateral side of the transmission case 14. In this state, a shift operation is freely performed between a state in which the high speed side output gear 23 is loosely fitted to the support shaft 21 and a state in which the high speed side output gear 24 is engaged.

  The shift operation means for operating the shift gear 22 at high and low speeds includes a shift shaft 25 pivotally supported in a state of penetrating the transmission case 14 and an arm member 26 for rotating the shift shaft 25 outside the transmission case 14. The shift gear 22 is operated to the high speed side by pulling the operation wire 30a connected to one end of the arm member 26 (pulling to the right in FIG. 12) (FIG. 12A). ) And is always urged to the low speed side (return urging in the left direction in FIG. 12) by the urging force of the return spring mechanism 27 connected to the other end side of the arm member 26 (FIG. 12B). . The return spring mechanism 27 includes a rod 27a connected to the arm member 26 and a coil spring 27b externally fitted to the rod 27a. The urging force of the coil spring 27b is changed by moving the rod 27a that moves forward and backward with respect to the bracket 14A.

Between the shift gear 22 and the high speed side output gear 23, as shown in FIG. 10 and FIG. 11, a state in which the tooth portions 22a and 23a are engaged in a relative rotational direction and a state in which the engagement is released. The slopes of the tooth portions 22a and 23a are made different depending on the rotation direction so as to function. Therefore, as shown in FIG. 11 (a) , the tooth portions 22a and 23a are engaged with each other, the rotation in the forward direction of the machine body (the direction of the arrow f in FIG. 11 (a) ), and the high-speed output gear on the driving side. If the rotational speed of the tooth portion 23a of the gear 23 is higher than that of the gear portion 22a of the shift gear 22 on the driven side, the power from the high-speed side output gear 23 is transmitted to the shift gear 22, and the cutting and conveying device 3 is driven at high speed. Is done. If the rotational speed of the shift gear 22 on the driven side exceeds the rotational speed of the high-speed output gear 23 in this rotational direction, the preceding rotation of the shift gear 22 is allowed in the same direction. Such a phenomenon does not occur.
When the rotation of the machine body backward direction is transmitted to the high speed side output gear 23, the teeth 23a of the high-speed side output gear 23 is moved in the arrow direction r in FIG. 11 (b), the inclined surface 22c of the teeth 22a of the shift gear 22 In the direction away from each other, the reverse rotation of the high-speed output gear 23 is prevented from being transmitted to the shift gear 22, and the reverse rotation driving of the cutting and conveying device 3 can be avoided.
That is, the tooth portion 22a formed on the shift gear 22 and the tooth portion 23a formed on the high-speed side output gear 23 transmit only rotation in one direction, and the reverse rotation jumps off by climbing on the inclined surface. A one-way clutch 28 of a jump clutch type is configured.

  A well-known one-way clutch 29 using a roller is interposed between the spindle 21 and the low-speed output gear 24 of the cutting output pulley 36a, and only the rotational power in the forward direction of the machine body is output. It is made to output from 36a. This one-way clutch 29 operates the shift operation means to disengage the shift gear 22 from the low-speed output gear 24 and engages with the high-speed output gear 23 until the output from the cutting output pulley 36a. In order to avoid the temporary disappearance of power, the power transmission from the low-speed output gear 24 is continued until the meshing start of the shift gear 22 and the high-speed output gear 23 starts.

In this cutting speed change mechanism 20, the return spring 27b used in the spring mechanism 27 is not a tension spring is used to form a hook portion for hooking the ends, sandwich the coil spring 27 b between the end plates, with compression It is used in such a way as to generate power. This is because even when the one-way clutch 28 of the jump clutch type repeats the jump operation when the aircraft is moving backward, the hook portion formed by bending the end portion of the tension spring is cracked by the vibration with the backlash. This is to avoid this.

  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.

Driver 7 includes an electric motor 70 as a power source, a gear mechanism 72 for transmitting the power of the electric motor 70 to the cam mechanism 8, for detecting the operating state of the cam mechanism 8 which is driven by an electric motor 70 "detecting mechanism provided with a potentiometer 73 as a "as a means of controlling the operation of the electric motor 70, and a motor control circuit provided as a control program in the controller 100 comprising a microcomputer to be described later.
The electric motor 70, when the operation signals from various operation buttons B1~B5 provided in the operation panel 11C is input to the control unit 100, a control command based on the operation signal is outputted from the control device 100, electric The motor 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 on the rear side of the fuselage with respect to the camshaft 80. 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 body relative to the cam shaft 80, and the shift operating means of the cutting transmission mechanism 20 that is guided by contact on the rear side of the body relative to the cam shaft 80 is operated. A mowing transmission system cam follower 88 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 swing pieces 84a and 86a, respectively. is there.
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.

Cam follower 85,87,88 present in the machine body rear side of the cam shaft 80, the swing piece 85a which is formed by bending the respective U-shaped cross section, 87a, the lower end portion in the longitudinal direction of the 88a, the clutch case 76 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 reaping clutch 30 are turned on and off at the upper end sides in the longitudinal direction of the swinging pieces 85a, 87a, 88a, respectively, and the speed change operation of the reaping speed change mechanism 20 is performed. Operation wires 40a, 30a, 20a for operating the means 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 cutting transmission system cam surface 83a for operating the cutting transmission system cam follower 88 at the outer peripheral edge thereof, and the third cam plate 83 and the first cam plate 81 are provided. A gear portion 75 for transmitting a driving force to the second cam plate 82 is formed.
14 and 15, each operation wire 20a, 30a, 40a, 9a, 44a, 50a is composed of an inner wire IW and an outer wire OW. A bracket 76 a as a “fixing portion” of the present invention is attached to the front portion of the clutch case 76 so as to extend forward. The end of each outer wire OW is connected to the front surface of the clutch case 76 or the front end of the bracket 76a.

[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, with respect to the position of the second cam plate 82 and the third cam plate 83, although not shown in the direct 17, FIG. 18 illustrates the operation of the threshing clutch 40 and the grain discharge clutch 50 It can be seen that the line relates to the first cam plate 81, and the line indicating the operation of the cutting transmission mechanism 20 relates to the third cam plate 83.
Therefore, even when viewed in FIG. 18, the position of the a, only grain discharge clutch 50 is "ON", all other clutch has become a "OFF", reaper transmission mechanism 20 is in a low speed state is there.
In FIG. 19, the feed system 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 feed system cam follower 86 to the cutting side to keep the feed chain clutch 44 in the disconnected 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.
Further, as shown in FIGS. 18 and 19, the third cam plate 83 maintains the low speed state of the cutting transmission mechanism 20.

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, 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.
In FIG. 18 as well, 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 reaping clutch 30 is disengaged.
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. 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. The cutting cam surface 82b of the second cam plate 82 has not reached the state in which the cutting cam follower 87 acts, and the cutting cam follower 87 maintains the cutting clutch 30 in the disconnected state.
Further, as shown in FIGS. 18 and 19, the third cam plate 83 maintains the low speed state of the cutting transmission mechanism 20.

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 feed cam surface 82a of the second cam plate 82 that rotates clockwise is in a state in which the cutting operation of the feed cam follower 86 is released, and the state in which the feed chain clutch 44 is switched to engage with the clutch is maintained.
At this time, the cutting system cam surface 82b of the second cam plate 82 operates the cutting system cam follower 87 to switch the cutting clutch 30 to the clutch-engaged state.
Also in FIG. 18, the position indicated by the same symbol d is the same, that is, the feed chain clutch 44 and the reaping clutch 30 are both switched to the clutch-engaged state in addition to the threshing clutch 40. .
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 Are shown in a state where both are switched to the clutch engaged state.
Further, as shown in FIGS. 18 and 19, the third cam plate 83 maintains the low speed state of the cutting transmission mechanism 20.

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.
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 operate the operation shifter of the cutting transmission mechanism 20 to the high speed side.
In FIG. 18, 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 20 is operated on the high speed side. Show.
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 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 , Both of which are switched to the clutch engaged state, the cutting high speed system cam surface (not shown) of the third cam plate 83 operates the cutting transmission system cam follower (not shown), The operation shifter of the cutting transmission mechanism 20 is operated to the high speed side.

[Control system configuration]
As shown in Figure 20, the reaper clutch 30, threshing clutch 40, controls the operation of the electric motor 70 is a power source of a cam mechanism 8 for operating the feed chain clutch 44, grain discharge clutch 50, and cutting speed change mechanism 20 controller 100 which includes a motor control circuitry which is configured as follows

Each of the pillow handling threshing start button B1, the mowing threshing start button B2, the high speed mowing threshing start button B3, the grain discharge start button B4, and the work end button B5 provided on the operation panel 11C of the boarding operation unit 11 is configured by an operation switch. The operation signal is input to the control device 100.
In the control device 100, based on the determination of which of the buttons B1, B2, B3, B4, and B5 is 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 B1 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. 17 (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 B5 is operated, the electric motor 70 is driven to rotate the camshaft 80 counterclockwise, and 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 has been operated, the detection position of the camshaft 80 detected by the potentiometer 73 is more than the position of the symbol d in FIG. 17 (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 B5 is operated, the electric motor 70 is driven to rotate the camshaft 80 counterclockwise, and when it is detected that the neutral position N has been reached, the operation stops. To do.

When the high-speed cutting de KokuHiraki start button B3 is detected that is operated, the detection position of the cam shaft 80 detected by the potentiometer 73 is, the position of the mark e in FIG. 17 (for convenience, referred to high-speed cutting threshing position e ), 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 and threshing position e, the cutting transmission 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 B5 is operated, the electric motor 70 is driven to rotate the camshaft 80 counterclockwise, and 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 B4 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 B5 is operated, the electric motor 70 is driven to rotate the camshaft 80 clockwise, and when it is detected that the neutral position N has been reached, the operation stops. To command.

The front SL driver's section 11, not shown Yes in partial grass rod 9 of the operating device (not shown) is provided, operation signal by the operation member are constituted to have input to the controller 100. When it is determined whether the operation by the operation tool is on the weeding posture side or the retracted posture side of the weed rod 9, the mowing transmission mechanism 20 is shifted to the high speed side or the low speed side. The control device 100 is also provided with a control circuit that outputs an operation command.
Also, reverse flow operation tool with respect to the operation member 64 of the blower fan 62 (not shown) is also Yes comprise only while the reverse flow operation member is operated by operating the operating body 64, to reverse the blowing Direction It is configured to be able to.

[Other Embodiment 1]
Another embodiment of the clutch operating device A will be described with reference to FIG.
FIG. 21 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 the above-described best embodiment is basically adopted. However, compared with the configuration of the best embodiment, the operation timing of the feed chain clutch 44 and the cutting are determined. The difference is that there is no difference in the operation timing of the clutch 30 and the cam mechanism 8 can also be operated 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 20, 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 1 of this another embodiment, the pillow handling threshing start button B1, the cutting threshing start button B2, the high-speed cutting threshing start button B3, the grain discharge start button B4, and the work provided in the operation panel 11C of the boarding operation unit 11 Of the end buttons B5, when the pillow handling threshing start button B1 is pressed, it is operated to the position of symbol b in FIG. 21. In this state, only the threshing clutch 40 is engaged and the feed chain clutch 44 is still in operation. No entry operation has been performed. 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.

  If it demonstrates based on drawing, the position of the code | symbol N shown in FIG. 21 will be in the state in which all the clutches etc. which are operated by this clutch operation apparatus A are not operated to the action | operation side, and neither work apparatus is driven. The neutral position is shown.

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. 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.
In this case, the position of the a, only grain discharge clutch 50 is "ON", all other clutch has become a "OFF", reaper transmission mechanism 20 is a "slow" state, minute grass The hook 9 is not the “open” position in the overhanging state, but the stored “closed” position.

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.
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 20.

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, 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 20 in the low speed state.

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.
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 20 to the “high speed” state.

In [1 of another embodiment], in the embodiment shown in FIG. 21, the fourth cam plate for operating the weed ridge 9 has been described with reference to the solid line in FIG. 21. 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.
Also in [1 of another embodiment], as described in the best embodiment, the operation timings of the feed chain clutch 44 and the cutting clutch 30 may be different.

[Second 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.

[3 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.

[4 of another embodiment]
In the neutral position N of the cam mechanism 8, the embodiment has been described in which all the working devices are in the stopped state. However, for example, a configuration in which only the threshing clutch 40 is operated may be maintained. 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.

[5 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, B2, B3, B4, and B5 shown in the above-described embodiments, but is 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.

[6 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 Plan view showing the fuselage frame Side view showing the weed ridge part Side view showing the attachment part Front view showing the attachment part The attachment part of a weed fence is shown, (a) is a side view of a weed action posture, (b) is a side view of a retracted posture Side view showing the mowing clutch Sectional view showing the cutting gear mechanism Sectional view showing tooth part of one-way clutch The top view which shows the operation part of a mowing transmission mechanism 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 Time chart showing the operation mode of the clutch operating device according to another embodiment

DESCRIPTION OF SYMBOLS 1 Airframe frame 2 Crawler type traveling device 3 Harvesting and transporting device 4 Threshing device 5 Grain storage device 7 Drive device 8 Cam mechanism 9 Divided culm 20 Cutting speed change mechanism 30
30a Operation wire 40 Threshing clutch
40a Operation wire 42 Feed chain 44 Feed chain clutch
44a Operation wire 50 Grain discharge clutch
50a Operation wire 51 Glen tank 70 Electric motor 73 Potentiometer (detection mechanism)
76 Clutch case
76a Bracket (fixed part)
80 Cam shaft 81 First cam plate 82 Second cam plate 83 Third cam plate A Clutch operating device
OW outer wire
IW inner wire

Claims (11)

On the fuselage frame of the self-propelled aircraft, a cutting and conveying device and a boarding operation unit are arranged on the front side of the aircraft, and a threshing device and a grain storage device are arranged on the left and right sides of the rear side of the aircraft, and the grain storage A combine that is configured so that the Glen tank of the device can be rotated to the outside of the aircraft around the vertical axis of the aircraft rear side,
A plurality of working clutches for interrupting power to each working device deployed on the machine frame;
Equipped with a clutch operating device comprising a cam mechanism for turning on and off the plurality of working clutches, and an electric motor for operating the cam mechanism,
The clutch operating device, in adjacent intervals between the grain tank and the threshing apparatus, Ri placed before Symbol machine body on the frame Thea,
As the plurality of working clutches, comprising: a grain discharging clutch that turns on and off the drive of the grain storage device; and a cutting clutch that turns on and off the drive of the cutting and conveying device,
The cam mechanism is configured such that the rotation direction can be changed between the normal rotation direction and the reverse rotation direction by the electric motor, and the reaping clutch and the grain discharging clutch are both maintained in the cutting position. The position where the grain discharging clutch is engaged and the reaping clutch is disengaged is set in one operation area, and the grain discharging clutch is disengaged in the other operation area. A combine in which a position at which the mowing clutch is engaged is set . As the plurality of working clutch, further, Bei example a threshing clutch for turning on and off the driving of the threshing apparatus, and a feed chain clutch for turning on and off the driving of the feed chain, and
The cam mechanism, across the neutral position where the clutch of all hands are kept off position, the one on the operation area side, the grain discharge clutch in clutch engaging, the reaper clutch, the threshing clutch, and sets the position of each the clutch disengaging of the feed chain clutch, the operation range of the other side, the grain discharge clutch in clutch disengaging, the reaper clutch, the threshing clutch, and the feed chain clutch The position where each of the clutch is engaged is set,
Furthermore, it combined according to the position to be entered is the threshing clutch and the feed chain clutch to claim 1, wherein the cutting clutch is set closer to the neutral position than the inlet Ritonaru position. On the aircraft frame of the self-propelled aircraft, the cutting and conveying device and the boarding operation unit are arranged on the front side of the aircraft, and the threshing device and the grain storage device are distributed and arranged on the left and right of the aircraft rear side, and The grain storage device Glen tank is a combine that is configured to be rotatable to the outer side of the fuselage with the vertical axis on the rear side of the fuselage as the center of rotation,
A plurality of working clutches for interrupting power to each working device deployed on the machine frame;
A clutch operating device comprising a cam mechanism for turning on and off the plurality of working clutches, and an electric motor for operating the cam mechanism;
The clutch operating device is disposed on the machine body frame at a position within an adjacent interval between the threshing device and the grain tank in the left-right direction of the machine body, and at a position closer to the front side of the grain tank in the machine body front-rear direction. And
The operation wire that connects the plurality of working clutches and the cam mechanism is a combine that is connected to the cam mechanism from the front side of the machine body in a state along the longitudinal direction of the machine body. A clutch case covering the cam mechanism is provided;
The combine according to claim 3, wherein the clutch case is located rearward of the front end of the Glen tank in the longitudinal direction of the fuselage. The operation wire is provided with an inner wire and an outer wire,
The clutch case includes a fixing portion to which the outer wire is connected,
The combine according to claim 4, wherein the fixing portion is located rearward of the front end of the Glen tank in the longitudinal direction of the machine body. A bracket for fixing the outer wire is attached to the front end portion of the clutch case as the fixing portion,
The combine according to claim 5, wherein the bracket is located rearward of the front end of the Glen tank in the longitudinal direction of the fuselage. The said electric motor is arrange | positioned side by side with the said cam mechanism so that it may be located in the said threshing apparatus side with respect to the said cam mechanism in the left-right direction of a body. Combine. The detection mechanism for detecting the operating state of the cam mechanism is arranged side by side with the cam mechanism so as to be positioned on the grain storage device side with respect to the cam mechanism in the left-right direction of the machine body. The combine according to any one of 7 to 7. The combine according to any one of claims 1 to 8, wherein the plurality of working clutches are disposed in front of the cam mechanism. The combine according to any one of claims 1 to 9, wherein a feed chain clutch for turning on and off the drive of the feed chain is provided as the plurality of working clutches. The combine as described in any one of Claim 3 to 10 provided with the grain discharge clutch which turns on and off the drive of the said grain storage apparatus as said several working clutch.

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