JP2018166475A - Clutch control device - Google Patents

Abstract

To provide a compact clutch control device which can be easily controlled.SOLUTION: A clutch control device comprises: a rotary shaft (55) which is driven to rotate by driving means (50); a rotor (57) and a cam (58) for integrally rotating with the rotary shaft (55); and a swing member (47) which swings in linkage with rotation of the cam (58), in which the rotor (57) comprises a first groove (57A) and a second groove (57B) which extend in a circumferential direction with the rotary shaft (55) asa center and each of which has a different phase each other, a first clutch (21) is connected to the first groove (57A), the second clutch (22) is connected to the swing member (47), a third clutch (23) is connected to the second groove (57B), the driving means (50) causes the rotary shaft (55) to rotate in a normal direction for connecting the second clutch (22) and the first clutch (21), the driving means (50) causes the rotary shaft (55) to rotate in a reverse direction for connecting the third clutch (23).SELECTED DRAWING: Figure 10

Description

  The present invention relates to a clutch operating device that switches a clutch that transmits power to an operating portion between a connected state and a disconnected state.

  For example, in a conventional combine, operation parts such as a reaping device, a threshing device, and a discharge auger are provided, and clutches are provided to transmit the output rotation of the engine to these operation parts.

  And the 1st operation device which connects and disconnects the threshing clutch which transmits the output rotation of the engine to the reaping clutch and the threshing device which transmits the output rotation of the engine to the reaping device, and the discharge which transmits the output rotation of the engine to the discharge auger A technique for providing a second operating device for connecting and disconnecting a clutch is known. (See Patent Documents 1 and 2)

JP-A-3-164108 JP-A-5-153842

  However, in the techniques described in Patent Documents 1 and 2, in the engine room incorporating the engine, the first operating device that switches the cutting clutch and the threshing clutch between the connected state and the disconnected state, and the discharge clutch in the connected state and the disconnected state. Since the second operating device to be switched to is arranged, there is a drawback that a space for arranging other parts cannot be secured. There is also a problem that the control program is complicated because the driving device for driving the first operating device and the driving device for driving the second operating device are independent.

  Therefore, the present invention is to realize a clutch operating device that switches power transmitted to a plurality of operating parts such as a reaping clutch, a threshing clutch, and a discharging clutch between a connected state and a disconnected state as a compact and easy to control. Objective.

  In order to solve the above problems, the present invention takes the following technical means.

  That is, according to the first aspect of the present invention, the first clutch (21) that transmits the output rotation of the engine (E) to the first operating portion (3) and the output rotation of the engine (E) are transmitted to the second operating portion (4). ) And the third clutch (23) that transmits the output rotation of the engine (E) to the third operating part (8). The rotating shaft (55) rotated by the driving means (50), the rotating body (57) and the cam (58) rotating integrally with the rotating shaft (55), and the rotation of the cam (58) A swinging member (47) that swings in conjunction with the rotating body (57) is provided, and the rotating body (57) extends in a circumferential direction around the rotating shaft (55) with different phases. A groove (57A) and a second groove (57B) are formed, and the first clutch (21) is connected to the first clutch (21). (57A), the second clutch (22) is linked to the swing member (47), the third clutch (23) is linked to the second groove (57B), and the driving means (50) The rotary shaft (55) is rotated in the forward direction to connect the second clutch (22) and the first clutch (21), and the drive means (50) is used to reverse the rotary shaft (55) and the third clutch (23). The clutch operating device is characterized in that it is configured to connect.

  According to a second aspect of the present invention, the first clutch (21) and the second clutch (22) are disconnected and the third clutch (23) is connected by the reverse rotation of the rotating shaft (55). The clutch operating device according to claim 1 is provided.

  According to a third aspect of the present invention, an end of a first wire (41) for operating the first clutch (21) is engaged with the first groove (57A) so as to be movable in an extending direction, The end of the second wire (42) for operating the second clutch (22) is connected to the swing member (47), and the end of the third wire (43) for operating the third clutch (23) is connected. The clutch operating device according to claim 1 or 2, wherein the clutch operating device is movably engaged with the second groove (57B) in the extending direction.

  According to a fourth aspect of the present invention, the distance from the rotating shaft (55) to the first groove (57A) and the distance from the rotating shaft (55) to the second groove (57B) are set to the same distance. The clutch operating device according to any one of Items 1 to 3.

  The invention according to claim 5 is a connection position of the second wire (42) in the swing member (47) from the first support shaft (46) which is the swing center of the swing member (47). The distance from the second spindle (47A) to the distance from the rotary shaft (55) to the first groove (57A) and the distance from the rotary shaft (55) to the second groove (57B). The clutch operating device according to claim 4 is set.

  According to invention of Claim 1, the rotating shaft (55) rotated by the drive means (50), the rotating body (57) and the cam (58) rotating integrally with the rotating shaft (55), A swinging member (47) that swings in conjunction with the rotation of the cam (58) is provided, and the rotating body (57) is extended in a circumferential direction around the rotating shaft (55) with different phases. A first groove (57A) and a second groove (57B) are formed, the first clutch (21) is connected to the first groove (57A), and the second clutch (22) is connected to the swing member (47). The third clutch (23) is linked to the second groove (57B), and the rotary shaft (55) is rotated forward by the driving means (50) to connect the second clutch (22) and the first clutch (21). The third clutch (23) is connected by reversing the rotation shaft (55) by the drive means (50). Since a was, in a single driving device (50), it can be switched from the first clutch (21) and the second clutch (22) a third clutch (23) in the connected state with the cut-off state. As a result, the clutch operating device can be made compact, and the control program for the drive means (50) can be simplified.

  According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the first clutch (21) and the second clutch (22) are disengaged by the reverse rotation of the rotating shaft (55) and the first Since the three clutches (23) are connected, the third operating unit is reduced in the state where the load on the engine (E) is reduced by stopping the driving of the first operating unit (3) and the second operating unit (4). (8) can be driven.

  According to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the end of the first wire (41) for operating the first clutch (21) is formed in the first groove (57A). On the other hand, the end of the second wire (42), which is movably engaged in the extending direction and operates the second clutch (22), is connected to the swing member (47), and the third clutch (23) is operated. Since the end of the third wire (43) engaged with the second groove (57B) is movably engaged with the second groove (57B), the first clutch (21) is connected to the second groove (57B) via the first wire (41). The two clutches (22) can be remotely operated via the second wire (42), and the third clutch (23) can be remotely operated via the third wire (43), so that the degree of freedom of arrangement of the clutch operating device is increased.

  According to invention of Claim 4, in addition to the effect by the invention of any one of Claims 1-3, the distance from the rotating shaft (55) to the first groove (57A), and the rotating shaft ( 55) to the second groove (57B) are set to the same distance, so that the first clutch (21) and the third clutch (23) can be switched with the same moment or the same stroke. Can be shared.

  According to the fifth aspect of the present invention, in addition to the effect of the fourth aspect of the invention, the swing member (47) can be moved from the first support shaft (46) serving as the swing center of the swing member (47). The distance from the rotating shaft (55) to the first groove (57A) and the distance from the rotating shaft (55) to the second groove ( 57B), the first clutch (21), the second clutch (22), and the third clutch (23) can be switched with the same moment or the same stroke. It is possible to share the structure of each clutch.

It is a left view of a combine. It is a top view of a combine. It is a front view of a combine. It is a rear view of a combine. It is a left view explaining a clutch operation device. It is a left view of a clutch operating device. (A) of a clutch operation apparatus is a top view, (b) is a left view, (c) is a rear view. It is explanatory drawing of a drive of a clutch operation apparatus when a cutting / removal lever is operated to a stop position. It is explanatory drawing of a drive of the clutch operation apparatus when a mowing lever is operated to the threshing position. It is explanatory drawing of a drive of a clutch operation apparatus when a mowing lever is operated to the cutting and threshing position. It is explanatory drawing of a drive of a clutch operation apparatus when a discharge lever is operated to the discharge position. It is a transmission diagram of engine output rotation. It is a connection diagram of a control device. It is a block circuit diagram of hand handling control.

  The present invention will be described with reference to the drawings. From the viewpoint of the pilot, the front side is the front side, the rear side is the rear side, the right hand side is the right side, and the left hand side is the left side.

  As shown in FIGS. 1 and 2, the combine is provided with a traveling device 2 composed of a pair of left and right crawlers traveling on the soil surface on the lower side of the machine frame 1, and harvests grain culm on the front side of the machine frame 1. A threshing device (a “second operation part” in claims) is provided with a reaping device (“first operation part” in claims) 3 and threshing / sorting cereals harvested on the rear left side of the reaping device 3. 4 is provided, and a control unit 5 on which a driver gets on the rear right side of the reaping device 3 is provided.

  An engine room 6 on which the engine E is mounted is provided on the lower side of the control unit 5, and a Glen tank 7 is provided on the rear side of the control unit 5 to store grains that have been threshed and sorted. On the rear side, there is provided a discharge auger ("third actuating part" in the claims) 8 comprising a vertical discharge auger extending in the vertical direction for discharging the grains to the outside and a horizontal discharge auger extending in the front-rear direction. .

  A front panel 10 provided with a control lever 15 and the like is disposed on the front side of the control seat 5A of the control unit 5, and a side panel 11 provided with a main transmission lever 16 and the like is disposed on the left side of the control seat 5A. ing. The main transmission lever 16 can be rotated to a forward position in which the upper part is inclined forward with respect to the lower part and to a backward position in which the upper part is inclined rearward with respect to the lower part. The reverse position is detected by the forward position switch 16 </ b> A and the reverse position switch 16 </ b> B, and the detected value is input to the control device 65 via the input port of the control device 65.

  On the rear side of the main transmission lever 16 in the side panel 11, a work lever for performing a switching operation between a connected state (a state where the driving force is transmitted) and a disconnected state (a state where the driving force is disconnected) of the work clutch 20. 30 is provided.

  The work clutch 20 transmits the output rotation of the engine E to the threshing device 4 and the cutting clutch (first clutch) 21 provided on the transmission for transmitting the output rotation of the engine E to the reaping device 3. A threshing clutch ("second clutch" in the claims) 22 provided on the transmission, and a discharge clutch provided on the transmission that transmits the output rotation of the engine E to the glen tank 7 and the discharge auger 8 (" 3rd clutch ") 23. Both are configured as a belt tension clutch.

  The work lever 30 includes a cutting lever 31 provided on the rear side of the main transmission lever 16 in the side panel 11 and a discharge lever 32 provided on the rear side of the cutting lever 31 in the side panel 11.

  The mowing lever 31 has a stop position in which the upper part is inclined forward with respect to the lower part, a threshing position in which the upper part is erected on the upper side with respect to the lower part, and a mowing position in which the upper part is inclined with respect to the lower part. Can be rotated to a position. In this specification, the stop position refers to a position where the clutch operating device 40 is driven and the reaping clutch 21 and the threshing clutch 22 are shut off, and the threshing position refers to driving the clutch operating device 40, The mowing clutch 21 is in a disconnected state and the threshing clutch 22 is in a connected state. The mowing and pulling position is a position in which the clutch operating device 40 is driven to bring the mowing clutch 21 and the threshing clutch 22 into a connected state. .

  The stop position, the threshing position, and the cutting / cutting position of the cutting / cutting lever 31 are detected by the stop position switch 34A, the threshing position switch 34B, and the cutting / cutting position switch 34C. To the control device 65. Note that a potentiometer can be used instead of the position switch 34, and a rotary dial device can be used instead of the cutting lever 31. The discharge stop position and discharge position of the discharge lever 32 are detected by the stop position switch 35A and the discharge position switch 35B, and the detected value is input to the control device 65 via the input port of the control device 65. Note that a potentiometer can be used instead of the position switch 35.

  The discharge lever 32 can be rotated to a discharge position in which the upper part is inclined forward with respect to the lower part and a stop position in which the upper part is inclined rearward with respect to the lower part. In this specification, the discharge position refers to a position where the clutch operating device 40 is driven to bring the discharge clutch 23 into a connected state, and the stop position refers to a position where the clutch operating device 40 is driven to Says the position to be in the blocking state.

  As shown in FIG. 5, the clutch operating device 40 is disposed below the side panel 11. The clutch operating device 40 and the cutting clutch 21 are connected by a wire (“first wire” in the claims) 41, and the clutch operating device 40 and the threshing clutch 22 are connected by a wire (“second wire” in the claims) 42. The clutch operating device 40 and the discharge clutch 23 are connected by a wire (“third wire” in the claims) 43.

  As shown in FIG. 12, the cutting clutch 21 extends in the left-right direction on the pulley 12 </ b> B supported by the output shaft 12 </ b> A of the transmission 12 provided on the transmission downstream side of the engine E and the upper part of the cutting frame 13 of the cutting device 3. It is formed by a tension arm that tensions or relaxes a belt wound around a pulley 13B supported by a counter shaft 13A. When the wire 41 is pulled backward by the clutch operating device 40, the belt is tensioned by the rotation of the tension arm connected to the end of the wire 41, and the reaping clutch 21 is in the connected state. When the wire 41 is pushed forward by 40, the belt is relaxed and the reaping clutch 21 is cut off.

  The threshing clutch 22 includes a belt wound around a pulley 14A supported by an output shaft 14 of the engine E and a pulley 17A supported by a counter shaft 17 provided extending in the left-right direction on the front side of the threshing device 3. It is formed of a tension arm that is tensioned or relaxed. When the wire 42 is pulled backward by the clutch operating device 40, the belt is tensioned by the rotation of the tension arm connected to the end of the wire 42, and the threshing clutch 22 is in the connected state. When the wire 42 is pushed forward by 40, the belt is relaxed and the threshing clutch 22 is cut off.

  The discharge clutch 23 includes a pulley 18B supported by an output shaft 18A of a bevel gear box 18 provided on the transmission downstream side of the engine E, and a conveying helical shaft 7A provided in the lower part of the Glen tank 7 so as to extend in the front-rear direction. It is formed by a tension arm that tensions or relaxes a belt wound around a pulley 7B supported by the belt. The rear portion of the conveying spiral shaft 7 </ b> A is connected to the auger helical shaft 8 </ b> A of the discharge auger 8 via a bevel gear box 19. When the wire 43 is pulled backward by the clutch operating device 40, the belt is tensioned by the rotation of the tension arm connected to the end of the wire 43, and the discharge clutch 23 is in the connected state. When the wire 43 is pushed forward by 40, the belt is relaxed and the discharge clutch 23 is cut off.

  As shown in FIGS. 6 and 7, the wire 41 is formed of an outer cable 41 </ b> A and an inner cable 41 </ b> B, and the rear end portion of the outer cable 41 </ b> A is detachably fixed to the upper part of the front wall of the case 45 of the clutch operating device 40. Has been. The wire 43 is formed by an outer cable 43 </ b> A and an inner cable 43 </ b> B, and the rear end portion of the outer cable 43 </ b> A is detachably fixed to the lower portion of the front wall of the case 45. The wire 42 is formed by an outer cable 42 </ b> A and an inner cable 42 </ b> B, and the rear end portion of the outer cable 42 </ b> A is detachably fixed to a fixing stay 45 </ b> B provided on the upper front side of the left wall of the case 45. As a result, the wire 41, the wire 42, and the wire 43 can be stored in the state of an assembly part fixed to the case 45, and the assembly work time of the combine can be reduced.

  A support shaft (a “first support shaft” in the claims) 46 extending in the left-right direction is provided below the rear portion of the left wall of the case 45, and the lower portion of the swing member 47 rotates on the support shaft 46. It is fixed freely. The left and right sides of the support shaft 46 are supported by the left wall and the right wall of the case 45, respectively. As a result, the support shaft 46 is firmly fixed to the case 45, and the swing member 47 can be smoothly swung around the support shaft 46.

  A portion of the left wall of the case 45 facing the turning locus of the upper part of the swinging member 47 is provided with a support shaft provided in the upper part of the swinging member 47 and extending in the left-right direction. ]) An arc-shaped cutout groove 45A is formed around the support shaft 46 with which 47A is engaged. As shown in FIG. 7, the swing member 47 may be arranged inside the case 45 so that the left portion of the support shaft 47 </ b> A extends from the left wall of the case 45 to the left side.

  A potentiometer 48 is fixed to a substantially central portion of the left wall of the case 45 via a fixing stay 45C, and the input shaft of the potentiometer 48 is a connecting pin having a U-shaped notch formed at the tip. It is connected to an offset shaft 49 that rotates around the rotation shaft 55 via 48A.

  A motor (“driving means” in claims) 50 and a speed reducer 51 are detachably fixed to the right wall of the case 45. Thereby, the motor 50 and the speed reducer 51 can be stored in the state of assembly parts fixed to the case 45, and the assembly work time of the combine can be reduced.

  A rotation shaft 55 extending in the left-right direction is provided at a substantially central portion of the case 45. Note that both ends of the rotating shaft 55 in the left-right direction are fixed to the case 45 via bearings. In order from the right side, the rotating shaft 56 is connected to the rotating body 56 to which the output rotation of the motor 50 is transmitted, the rotating body 57 to which the inner cable 41A of the wire 41 and the inner cable 43A of the wire 43 are connected, and the swing member 47. A cam 58 with which a roller 47B provided on the support shaft 47A is in sliding contact is fixed in the left-right direction at a predetermined interval. Thereby, the rotation shaft 55, the rotating body 56, the rotating body 57, and the cam 58 can be rotated integrally by rotating the motor 50, and the wire 41, the wire 42 can be rotated by one motor 50. By pulling the wire 43 rearward, the connection and disconnection state of the reaping clutch 21, the threshing clutch 22, and the discharge clutch 23 can be switched.

  Next, the rotating body 56, the rotating body 57, and the cam 58 when the cutting lever 31 is operated to the stop position will be described.

  As shown in FIG. 8, in the axial view of the rotating shaft 55, the rotating body 56 is formed in a sector shape extending in a clockwise direction from about 5 o'clock to about 11 o'clock and having a central angle of about 180 degrees. ing. A gear portion 56A that meshes with the gear 51A supported by the output shaft of the speed reducer 51 is formed on the fan-shaped arc-shaped outer peripheral portion, and the sector-shaped radial center portion is fixed to the rotating shaft 55. Yes. The fan-shaped radius is smaller than the radius of the rotating body 57 and the radius of the cam 58.

  In the axial view of the rotation shaft 55, the rotating body 57 is formed in a substantially circular shape. In the upper part of the outer peripheral portion of the rotating body 57, an arc-shaped notch groove centering on a rotating shaft 55 with which a pin 41C extending in the left-right direction provided at the rear end portion of the inner cable 41B of the wire 41 is engaged. (“First groove” in the claims) 57A is formed, and a pin 43C extending in the left-right direction provided at the rear end of the inner cable 43B of the wire 43 is engaged with the lower portion of the outer peripheral portion of the rotating body 57. An arc-shaped cutout groove (“second groove” in the claims) 57B centering on the combined rotation shaft 55 is formed.

  The cutout groove 57A is formed in an arc shape extending from about 10 o'clock to about 1 o'clock in the clockwise direction and having a central angle of about 90 degrees, and the cutout groove 57B is formed from about 4 o'clock in the clockwise direction in the radial direction. It extends to approximately 7 o'clock and is formed in a sector shape having a central angle of approximately 90 degrees. The radius of the notch groove 57A and the radius of the notch groove 57B are formed to be the same radius, and the radius of the notch groove 57A and the radius of the notch groove 57B are formed to be larger than the radius of the rotating body 56. The central portion of the rotating body 57 is fixed to the rotating shaft 55. Thereby, the rotating body 57 can be rotated and the inner cable 41B and the inner cable 43B can be pulled backward at the same moment, and the control program of the control device 65 can be simplified.

  In the present embodiment, the pin 41C is engaged with a portion of the cutout groove 57A that is offset in the clockwise direction at 1 o'clock from the center, and the pin 43C is engaged with the portion of the cutout groove 57B in the clockwise direction at 7 o'clock. Has been. Further, in order to reduce the weight of the rotating body 57, a substantially inverted U-shaped notch is formed in the radial direction in the circular arc shape at a position from about 7 o'clock to about 9 o'clock in the radial direction toward the inside in the radial direction. A portion 57C is formed.

  In the axial view of the rotary shaft 55, the cam 58 includes an arcuate arc portion 58A extending in a clockwise direction from approximately 1 o'clock to approximately 3 o'clock, and an approximately 1 o'clock side in the clockwise direction of the arc portion 58A. A left extending portion 58B extending from the left end portion toward the central portion in the radial direction fixed to the rotating shaft 55, and a clockwise portion of the arc portion 58A fixed to the rotating shaft 55 from the right end portion on the approximately 3 o'clock side. It is formed from a right extending portion 58C extending toward the center portion in the radial direction.

  The radius of the arc portion 58 </ b> A is formed larger than the radius of the rotating body 57. Accordingly, the roller 47B can move smoothly while sliding on the arc portion 58A without colliding with the outer peripheral portion of the rotating body 57. Further, the length between the support shaft 46 and the support shaft 47A of the swing member 47 is formed to be the same length as the radius of the cutout groove 57B and the cutout groove 57A. As a result, the cam 58 is rotated and the swing member 47 is swung so that the inner cable 42B can be pulled rearward at the same moment as the inner cable 41B and the inner cable 43B. It can be simplified.

  The right connecting portion 58C is formed by an outer arc portion 60 positioned on the outer side in the radial direction and an inner arc portion 61 positioned on the inner side in the radial direction. The outer arc portion 60 is formed such that the support shaft 47A can move from the inner side to the outer side of the notch groove 45A while following the roller 47B that moves while slidingly contacting the outer arc portion 60. Further, the inner arc portion 61 is formed so that the support shaft 47A can move from the outer side to the inner side of the notch groove 45A while following the roller 47B that moves while slidingly contacting the inner arc portion 61.

  Next, the states of the clutch operating device 40, the wire 41, the wire 42, and the wire 43 when the mowing lever 31 is operated to the stop position, the threshing position, and the mowing and cutting position will be described.

  As shown in FIG. 8, when the cutting lever 31 is operated to the stop position, the gear portion 56 </ b> A of the rotating body 56 extends in the clockwise direction from about 5 o'clock to about 11 o'clock in the axial view of the rotating shaft 55. The cutout groove 57A of the rotating body 57 extends from about 10 o'clock to about 1 o'clock in the clockwise direction, and the cutout groove 57B of the rotary body 57 extends from about 4 o'clock to about 7 o'clock in the clockwise direction. The portion 58A extends in the clockwise direction from approximately 1 o'clock to approximately 3 o'clock. The pin 41C is engaged with a portion offset in the 1 o'clock direction from the radial center of the cutout groove 57A, the pin 43C is engaged with and engaged with the left end portion of the cutout groove 57B in the radial direction, and the roller 47B is engaged. The shaft 47A is slidably contacted with the groove 62 between the outer arc part 60 and the inner arc part 61, and the support shaft 47A is engaged at a position biased to the inner side from the radial center part of the notch groove 45A.

  As a result, the inner cable 41A of the wire 41, the inner cable 42A of the wire 42, and the inner cable 43 of the wire 43 are not pulled rearward, and the reaping clutch 21, the threshing clutch 22, and the discharge clutch 23 are It will be cut off.

  As shown in FIG. 9, when the mowing lever 31 is operated from the stop position to the threshing position, the rotating body 56 and the rotating body are rotated by the rotation of the motor 50 in the forward rotation direction in the axial view of the rotating shaft 55. 57 and the cam 58 rotate 50 degrees clockwise. As a result, the pin 41C moves to the left end portion in the radial direction of the cutout groove 57A, the pin 43C moves to a portion biased to the right end portion with respect to the radial center portion of the cutout groove 57B, and the roller 47B Moving to the right end of the arc portion 58A while being in sliding contact with the arc portion 60, the support shaft 47A moves toward the radially outer portion of the notch groove 45A.

  As a result, the inner cable 41A of the wire 41 and the inner cable 43 of the wire 43 are not pulled rearward, and the cutting clutch 21 and the discharge clutch 23 are in the disconnected state. On the other hand, the inner cable 42 </ b> A of the wire 42 is pulled rearward through the swing member 47, the threshing clutch 22 is in a connected state, and the output rotation of the engine E is performed through the threshing clutch 22. The threshing device 4 can be driven.

  As shown in FIG. 10, when the mowing lever 31 is operated from the threshing position to the mowing position, the rotating body 56 and the rotating body 56 are further rotated in the forward rotation direction of the motor 50 in the axial view of the rotating shaft 55. The rotating body 57 and the cam 58 further rotate 40 degrees in the clockwise direction. As a result, the pin 41C moves rearward while engaging with the radial left end portion of the notch groove 57A, the pin 43C abuts on the right end portion of the notch groove 57B in the radial direction, and the roller 47B has the arc portion 58A. The support shaft 47A comes into contact with the radially outer portion of the notch groove 45A.

  As a result, the inner cable 43 of the wire 43 is not pulled rearward, and the discharge clutch 23 is in a disconnected state. On the other hand, the inner cable 41A of the wire 41 and the inner cable 42A of the wire 42 are pulled rearward, the cutting clutch 21 and the threshing clutch 22 are in a connected state, and the output rotation of the engine E causes the cutting clutch 21 and the threshing. The clutch 22 is transmitted to the reaping device 3 and the threshing device 4, respectively, so that the reaping device 3 and the threshing device 4 can be driven.

  Next, the states of the clutch operating device 40, the wire 41, the wire 42, and the wire 43 when the discharge lever 32 is operated to the discharge stop position and the discharge position will be described.

  As shown in FIG. 8, when the discharge lever 32 is operated to the discharge stop position, that is, when the cutting lever 31 is operated to the stop position, and the discharge lever 32 is operated to the discharge stop position, the axis of the rotary shaft 55. As viewed, the gear portion 56A of the rotating body 56 extends from approximately 5 o'clock to approximately 11 o'clock in the clockwise direction, and the cutout groove 57A of the rotating body 57 extends from approximately 10 o'clock to approximately 1 o'clock in the clockwise direction. The notch groove 57B extends from approximately 4 o'clock to approximately 7 o'clock in the clockwise direction, and the arc portion 58A of the cam 58 extends from approximately 1 o'clock to approximately 3 o'clock in the clockwise direction. The pin 41C is engaged with a portion offset in the 1 o'clock direction from the radial center of the cutout groove 57A, the pin 43C is engaged with and engaged with the left end portion of the cutout groove 57B in the radial direction, and the roller 47B is engaged. The shaft 47A is slidably contacted with the groove 62 between the outer arc portion 60 and the inner arc portion 61, and the support shaft 47A is engaged with a position biased to the radially inner portion of the notch groove 45A.

  As a result, the inner cable 41A of the wire 41, the inner cable 42A of the wire 42, and the inner cable 43 of the wire 43 are not pulled rearward, and the reaping clutch 21, the threshing clutch 22, and the discharge clutch 23 are It will be cut off.

  As shown in FIG. 11, when the discharge lever 32 is operated from the discharge stop position to the discharge position, that is, the cutting lever 31 is operated to the stop position, and the discharge lever 32 is operated from the discharge stop position to the discharge position. In such a case, the rotating body 56, the rotating body 57, and the cam 58 rotate 40 degrees counterclockwise by the rotation of the motor 50 in the reverse rotation direction as viewed from the axis of the rotating shaft 55. As a result, the pin 41C contacts the right end of the cutout groove 57A in the radial direction, the pin 43C contacts the left end of the cutout groove 57B in the radial direction, and the roller 47B moves while sliding on the inner arc portion 61. The support shaft 47A moves toward the radially inner portion of the cutout groove 45A.

  Next, the motor 50 further rotates in the reverse direction, and the rotating body 56, the rotating body 57, and the cam 58 rotate approximately 40 degrees in the forward rotation direction. Thereby, the pin 41C moves to the front side while engaging the right end portion in the radial direction of the notch groove 57A, and the pin 43C moves to the rear side while engaging the left end portion in the radial direction of the notch groove 57B. The roller 47B moves while being in sliding contact with the inner circular arc portion 61, and the support shaft 47A comes into contact with the radially inner portion of the notch groove 45A.

  As a result, the inner cable 41A of the wire 41 and the inner cable 42A of the wire 42 are not pulled rearward, and the reaping clutch 21 and the threshing clutch 22 are disconnected. On the other hand, the inner cable 43 of the wire 43 is pulled rearward, the discharge clutch 23 is connected, and the output rotation of the engine E is transmitted to the glen tank 7 and the discharge auger 8 via the discharge clutch 23. The conveying spiral shaft 7A of the Glen tank 7 and the auger spiral shaft 8A of the discharge auger 8 can be driven.

  The rotation angle of the rotation shaft 55 is measured by a potentiometer 48 via an offset shaft 49 provided on the cam 58 and a connecting pin 48, and the measured value is input to the control device 65 via an input port. Thereby, it is possible to prevent the rotation shaft 55 and the like from being excessively rotated by the motor 50.

  Next, a connection diagram of the control device 65 will be described. As shown in FIG. 13, on the input side of the control device 85 provided in the control unit 5, the lifting height of the cutting device 3 provided on the cutting frame 13 of the cutting device 3 has reached a predetermined height. A height switch 70 to detect, a handling switch 71 provided on the left wall of the threshing device 4, an emergency stop switch 72, a waste switch 73 for detecting stay of waste, and a front panel of the control unit 5 A start switch 74 for starting the engine E provided at 10, a front position switch 16A for detecting an operation position of the main transmission lever 16 provided on the lower side of the main transmission lever 16 of the side panel 11 of the control unit 5, Rear position switch 16B, position switch 34 for detecting the operating position of the cutting lever 31 provided on the lower side of the cutting lever 31 of the side panel 11 of the operation unit 5, and ejection of the side panel 11 of the operating unit 5 A position switch 35 for detecting the operation position of the discharge lever 32 provided below the bar 32, a potentiometer 48 for detecting the rotation angle of the rotation shaft 55 of the clutch operating device 40, and the discharge auger 8 are provided. A turning switch 75 for detecting that the turning angle of the discharge auger 8 has reached a predetermined angle, a storage switch 76 for detecting that the discharge auger 8 is in the storage position, and detecting the retention of grains in the discharge auger 8. A clogging switch 77 is connected via a predetermined input interface circuit.

  The position switch 34 includes a stop position switch 34A, a threshing position switch 34B, and a grain cutting position switch 34C, and the position switch 35 includes a stop position switch 35A and a discharge position switch 35B.

  On the other hand, the motor 50 fixed to the case 45 of the clutch operating device 40 is connected to the output side of the control device 85 via a predetermined output interface circuit.

  When the raising / lowering height of the reaping device 3 becomes a predetermined height and the input value of the height switch 70 is turned ON, the motor 50 is rotated in the reverse direction regardless of the operation position of the detaching lever 31, and the reaping clutch 21 or The reaping clutch 21 and the threshing clutch 22 are turned off. Thereby, work safety | security can be improved and the noise etc. which generate | occur | produce from the reaping apparatus 3 and the threshing apparatus 4 at the time of turning of a combine can be suppressed.

  When the normal mowing and threshing operation is changed to the manual threshing operation and the input value of the handling switch 71 is turned ON, the motor 50 is rotated in the reverse direction regardless of the operation position of the mowing and detaching lever 31, and the reaping clutch 21 Is turned off and the threshing clutch 22 is turned on. Thereby, work safety can be improved.

  When the input value of the emergency stop switch 72 for avoiding an emergency situation is turned ON, the engine E is stopped and the motor 50 is rotated in the reverse direction regardless of the operation position of the mowing lever 31 so that the mowing clutch 21 and the threshing clutch. 22 is turned off. Thereby, rotation of the feed chain 80 provided along the handle opening opened to the upper left side surface of the threshing device 4 can be stopped.

  When the waste discharged from the threshing device 4 stays more than a predetermined amount and the input value of the waste switch 73 is turned ON, the motor 50 is rotated in the reverse direction regardless of the operation position of the cutting / threshing lever 31. Then, the reaping clutch 21 and the threshing clutch 22 are turned off. Thereby, it is possible to prevent excessive waste from staying in the threshing device 4.

  When the mowing lever 31 is operated to the threshing position or the mowing position, even if the input value of the start switch 74 for starting the engine E is ON, the engine E is not started but is stopped. The motor 50 is rotated in the reverse direction to maintain the mowing clutch 21 and the threshing clutch 22 in the disconnected state. Thereby, at the time of starting of the engine E, it is possible to prevent the reaping device 3 and the threshing device 4 from starting to drive at the same time due to forgetting to return the severing lever 31.

  When the main transmission lever 16 is operated to the reverse position to reverse the travel device 2 and the input value of the reverse position switch 16B is turned ON, the motor 50 is rotated in the reverse direction regardless of the operation position of the cutting lever 31. Then, the cutting clutch 21 or the cutting clutch 21 and the threshing clutch 22 are brought into a disconnected state. Thereby, work safety | security can be improved and the noise etc. which generate | occur | produce from the reaping device 3 and the threshing device 4 at the time of reverse drive of a combine can be suppressed.

  When the mowing lever 31 is operated to the stop position and the input value of the stop position switch 34A is turned ON, as described above, the motor 50 is rotated in the reverse direction so that the mowing clutch 21 and the threshing clutch 22 are disconnected, When the threshing lever 31 is operated to the threshing position and the input value of the threshing position switch 34B is turned ON, as described above, the motor 50 is rotated in the forward rotation direction to bring the threshing clutch 22 into the connected state, and the cutting and detaching lever 31 When the input value of the cutting / removal position switch 34C is turned ON by being operated to the cutting / removing position, the motor 50 is rotated in the normal rotation direction as described above to bring the cutting clutch 21 and the threshing clutch 22 into a connected state. In addition, when the mowing lever 31 is operated to the threshing position or the mowing position, the discharge clutch 23 is in a disconnected state.

  When the mowing lever 31 is operated to the stop position and the input value of the stop position switch 34A is turned ON, and the discharge lever 32 is operated to the discharge stop position and the input value of the stop position switch 35A is turned ON, the mowing clutch 21 and the threshing The clutch 22 and the discharge clutch 23 are disengaged, the cutting lever 31 is operated to the stop position, the input value of the stop position switch 34A is ON, the input value of the discharge lever 32 is operated to the discharge position, and the input value of the discharge position switch 35B Is turned on, the cutting clutch 21 and the threshing clutch 22 are disconnected, and the discharge clutch 23 is connected. Thereby, the connection state and interruption | blocking state of the reaping clutch 21, the threshing clutch 22, and the discharge clutch 23 can be switched by one motor 50, and the control program of the control device 65 can be simplified. The trouble caused by 50 can be reduced.

  When the difference between the input value of the potentiometer 48 and the counter value built in the motor 50 is equal to or greater than a predetermined value, the motor 50 or the motor 50 and the engine E are stopped. Thereby, work safety can be improved and the malfunction resulting from a disconnection etc. can be avoided at an early stage.

  When the discharge port of the discharge auger 8 is positioned above the threshing device 4 or the grain tank 7 and the input value of the turning switch 75 is turned ON, the motor 50 is rotated in the forward rotation direction regardless of the operation position of the discharge lever 32. Thus, the discharge clutch 23 is brought into the disconnected state. Thereby, the loss at the time of discharge | emission of a grain can be reduced.

  When the discharge auger 8 is mounted on the auger receiver provided at the storage position and the input value of the storage switch 76 is turned ON, the motor 50 is rotated in the forward rotation direction regardless of the operation position of the discharge lever 32, and the discharge clutch 23 is turned off. Thereby, the loss at the time of discharge | emission of a grain can be reduced.

  When the grain stays in the discharge auger 8 more than a predetermined amount and the input value of the clogging switch 77 is turned ON, the motor 50 is rotated in the forward rotation direction regardless of the operation position of the discharge lever 32, and the discharge clutch 23 is turned on. Turn off. Thereby, the discharge auger 8 can be prevented from being damaged.

(Handling control)
As shown in FIG. 1, a nip 81 is provided opposite to the upper side of the feed chain 80 of the threshing device 4 so as to clamp the cereal with the feed chain 80. On the front side of the pinch 81, an auxiliary pinch 82 is provided to face the upper side of the front portion of the feed chain 80 and take over and carry the wheat straw from the cutting device 3 side.

  The auxiliary squeeze 82 is pivotally supported so that the rear end portion thereof is vertically rotatable with respect to the front wall of the barrel cover that covers the upper portion of the threshing device 4, and moves downward, that is, toward the feed chain 80 side. The bullet is energized.

  A potentiometer 83 is provided at the shaft support portion of the auxiliary clamp 82 to detect the upward rotation state of the auxiliary clamp 82, that is, the state where the clamp with the feed chain 80 is released. Instead of the potentiometer 83, an ON / OFF switch may be used, and this switch may be installed in the control unit 5.

  Further, since the output rotation of the engine E is input to the feed chain 80 via the threshing clutch 22, when the output rotation speed of the engine E is changed, the conveyance speed of the feed chain 80 is also changed accordingly.

  Thus, as shown in FIG. 14, the potentiometer 83 is connected to the input side of the controller 84, and the output side is controlled by controlling the fuel injection amount of the engine E on the output side. 85 is connected.

  As a result, when the handling operation is performed, the auxiliary pinch 82 is turned up and turned in order to insert the handling cereal while the reaping clutch 21 and the threshing clutch 22 are connected, and the feed chain 80 is moved. When the upper front part is opened, the upward rotation state of the auxiliary clamp 82 is detected by the potentiometer 83. Based on this detection result, an output is made from the controller 85 to the governor controller 85, and the output rotational speed of the engine E is lowered to a rotational speed lower than the rated rotational speed. In accordance with this, the conveyance speed of the feed chain 80 is reduced, and the safety of the handling operation of the hand-held cereals is improved.

(Cooperation with hand control)
A bar-shaped weeding guide 86 is provided from the front lower left side surface of the reaping device 3 to the rear lower left side surface of the threshing device 4 so as to prevent interference between the unmilled culm and the machine body.

  The weeding guide 86 has a front end pivotally attached to a portion of the front lower left side surface of the reaping device 3 and is disposed at a position surrounding the left side surface of the reaping device 3, and the front weeding guide 86. The rear weed guide 86b is pivotally attached to the rear end of 86a and arranged at a position surrounding the lower left side surface of the threshing device 4. The rear end portion of the rear weed guide 86b is fitted to a front / rear support rod (not shown) disposed below the left side surface of the threshing device 4 so as to be movable in the front / rear direction.

  Further, the front weed guide 86a is interlocked via an operating arm 87a from an electric motor 87 attached to the mowing device 3 side, and projects to the left side of the mowing device 3 from the position where it is housed on the mowing device 3 side. The position can be switched. The operation of the front weeding guide 86a is linked to the rear weeding guide 86b, and the position is switched between the position stored on the threshing device 4 side and the position protruding to the left side of the threshing device 4.

  As shown in FIG. 14, a switch 88 for manually operating the electric motor 87 is connected to the input side of the controller 84 described above, and the electric motor 87 and the alarm device 89 are connected to the output side of the controller 84.

  As a result, when the weeding guide 86 is overhanged to carry out the cutting operation and move to the handling operation, when the potentiometer 83 detects that the auxiliary scissors 82 has been turned up and down, first, from the controller 84 An output is made to the alarm device 89, and an intermittent electronic sound is emitted. Subsequently, an output is made from the controller 84 to the electric motor 87, and the weeding guide 86 is housed on the mowing device 3 side and the threshing device 4 side from the position where the weeding guide 86 projects to the left side. Following this, after an intermittent electronic sound is emitted again from the alarm device 89, an output is made from the controller 84 to the governor controller 85, the output rotational speed of the engine E is lowered, and the conveying speed of the feed chain 80 is reduced. To do.

  In this handling operation state, since the weeding guide 86 is housed, the worker can approach the feed chain 80 and supply the hand-cut cereal meal, and the efficiency of the handling operation is increased.

  Further, a description will be given of the configuration of the combine having a function of adjusting the vehicle height by moving the left and right crawlers of the traveling device 2 up and down with respect to the machine body frame 1 by extending and retracting left and right rolling cylinders (not shown).

  In this configuration, as shown in FIG. 14, left and right valve solenoids 90a and 90b for extending and retracting the left and right rolling cylinders are connected to the output side of the controller 84 described above.

  Therefore, when the mowing operation is performed with the vehicle height raised for the wet paddy field operation and the operation is shifted to the handling operation, when the potentiometer 83 detects that the auxiliary scissors 82 has been lifted and rotated, First, an output is made from the controller 84 to the alarm device 89, and an intermittent electronic sound is emitted. Following this, an output is made from the controller 84 to the left and right valve solenoids 90a, 90b, and the left and right rolling cylinders are shortened to reduce the vehicle height of the combine. Following this, after an intermittent electronic sound is emitted again from the alarm device 89, an output is made from the controller 84 to the governor controller 85, the output rotational speed of the engine E is lowered, and the conveying speed of the feed chain 80 is reduced. To do.

  In this handling operation state, the vehicle height of the combine is reduced, so that the feed chain 80 is also in a low position, so that the handling grain can be easily supplied.

  In addition, a description will be given of the configuration of the combine provided with a cutting height detection potentiometer 91 that detects the raising / lowering position of the cutting device 3 with respect to the body frame 1.

  In this configuration, as shown in FIG. 14, a cutting height detecting potentiometer 91 is connected to the input side of the controller 84 described above, and an operating valve of a cutting lift cylinder 92 that lifts and lowers the cutting device 3 to the output side of the controller 84. 92a is connected.

  Thus, in the case of moving to a handling operation with the mowing device 3 raised at the end of cutting, when the potentiometer 83 detects that the auxiliary clip 82 has been lifted and turned, An output is made from the controller 84 to the alarm device 89, and an intermittent electronic sound is emitted. Following this, an output is made from the controller 84 to the operation valve 92a, the cutting lift cylinder 92 is shortened, and the cutting device 3 is lowered to the lower limit position. Following this, after an intermittent electronic sound is emitted again from the alarm device 89, an output is made from the controller 84 to the governor controller 85, the output rotational speed of the engine E is lowered, and the conveying speed of the feed chain 80 is reduced. To do.

  In this handling operation state, since the reaping device 3 is lowered to the lower limit position, the safety at the time of supplying the handling cereal to the feed chain 80 is increased.

(Auxiliary step)
As shown in FIGS. 1 to 3, a step 5 </ b> B is provided below the front side of the cockpit 5 </ b> A in the control unit 5, and a retractable auxiliary step 5 </ b> C is provided below the step 5 </ b> B.

  The auxiliary step 5C includes a front and rear support arm 5D pivotally supported on the body frame 1 and a step plate 5E connected between the free ends of the support arm 5D.

  Further, a parking brake pedal 5F for operating a parking brake for maintaining the traveling device 2 in a stopped state is provided on the left side of the step 5B, and the parking brake pedal 5F is placed in a space below the step 5B. A locking device (not shown) is provided to keep the operating state.

  When the parking brake pedal 5F is locked by this locking device, the auxiliary step 5C projects outward from the space below the step 5C, and when the parking brake pedal 5F is unlocked, the auxiliary step 5C is moved to the lower side of the step 5B. It is configured to be automatically stored in the space.

  That is, a switch (not shown) for detecting the operating state of the locking device is provided, and an electric motor that operates based on the detection result of this switch is provided, and the support arm 5D of the auxiliary step 5C is rotationally driven by the operation of this electric motor. The configuration is as follows.

  Although the above-described auxiliary step 5C is a vertical rotation type, it may be configured to be stored and extended by rotating in the horizontal direction (rotating in the longitudinal direction of the machine body) about the vertical axis.

  The locking device described above is configured to manually lock when the parking brake pedal 5F is depressed. When the parking brake pedal 5F is depressed again in this locked state, the locking device is actuated in the unlocking direction by a spring. It is said.

  With the above configuration, when the parking brake is stopped, the auxiliary step 5C can be used to easily get on and off the step 5B, and when the parking brake is released, the auxiliary step 5C is stored. Therefore, the problem that the auxiliary step 5C collides with an obstacle such as a bag and is broken is solved.

3 reaping device (first working part)
4 Threshing device (second working part)
6 Engine room 8 Discharge auger (third working part)
20 work clutch 21 mowing clutch (first clutch)
22 Threshing clutch (second clutch)
23 Discharge clutch (third clutch)
41 wire (first wire)
42 wire (second wire)
43 wire (third wire)
46 Support shaft (first support shaft)
47 Swing member 47A Support shaft (second support shaft)
50 Motor (drive means)
55 Rotating shaft 57 Rotating body 57A Notch groove (first groove)
57B Notch groove (second groove)
58 Cam E Engine

Claims (5)

  A first clutch (21) for transmitting the output rotation of the engine (E) to the first operating portion (3), and a second clutch (22) for transmitting the output rotation of the engine (E) to the second operating portion (4). And a clutch operating device for switching the third clutch (23) that transmits the output rotation of the engine (E) to the third operating portion (8) between a connected state and a disconnected state, and is rotationally driven by the drive means (50). Rotating shaft (55), rotating body (57) and cam (58) rotating integrally with the rotating shaft (55), and swinging member swinging in conjunction with the rotation of the cam (58) (47) is provided, and the first groove (57A) and the second groove (57B) extending in the circumferential direction around the rotation shaft (55) with different phases from each other are provided on the rotating body (57). ), The first clutch (21) is connected to the first groove (57A), and the second clutch The clutch (22) is linked to the swing member (47), the third clutch (23) is linked to the second groove (57B), and the rotating shaft (55) is rotated forward by the drive means (50). The second clutch (22) and the first clutch (21) are connected, and the third clutch (23) is connected by reversing the rotation shaft (55) by the driving means (50). Clutch operating device.   The clutch operation according to claim 1, wherein the first clutch (21) and the second clutch (22) are disconnected and the third clutch (23) is connected by reversing the rotation shaft (55). apparatus.   The end of the first wire (41) for operating the first clutch (21) is engaged with the first groove (57A) so as to be movable in the extending direction, and the second clutch (22) is operated. The end of the second wire (42) is connected to the swing member (47), and the end of the third wire (43) for operating the third clutch (23) is connected to the second groove (57B). The clutch operating device according to claim 1, wherein the clutch operating device is movably engaged in the extending direction.   The distance from the said rotating shaft (55) to the 1st groove | channel (57A) and the distance from the said rotating shaft (55) to the 2nd groove | channel (57B) were set to the same distance. The clutch operating device according to item.   From the first support shaft (46) serving as the swing center of the swing member (47) to the second support shaft (47A) which is the connection position of the second wire (42) in the swing member (47). The clutch according to claim 4, wherein the distance is set to a distance equivalent to the distance from the rotary shaft (55) to the first groove (57A) and the distance from the rotary shaft (55) to the second groove (57B). Operating device.

Images