KR102598595B1 - Clutch control device - Google Patents

Abstract

(Task) Implement a clutch operating device that is compact and easy to control.
(Solution) A rotating shaft 55 driven to rotate by the driving means 50, a rotating body 57 and a cam 58 that rotate integrally with the rotating shaft 55, and linked to the rotation of the cam 58 A swing member 47 that oscillates is installed, and a first groove 57A and a second groove 57B extend in a circumferential direction around the rotation axis 55 on the rotating body 57 with different phases from each other. ) is formed, the first clutch 21 is linked to the first groove 57A, the second clutch 22 is linked to the rocking member 47, and the third clutch 23 is linked to the second groove 57B. ), the driving means 50 rotates the rotating shaft 55 forward, the second clutch 22 and the first clutch 21 are connected, and the driving means 50 rotates the rotating shaft 55 in reverse. It is configured to connect the third clutch 23 by rotating it.

Description

Clutch operating device {CLUTCH CONTROL DEVICE}

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

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

And, a first operating device that connects and blocks the reaping clutch that transmits the output rotation of the engine to the reaping device and the threshing clutch that transmits the output rotation of the engine to the threshing device, and a discharge device that transmits the output rotation of the engine to the discharge auger. A technique for installing a second operating device for connecting and disconnecting the clutch is known (see Patent Documents 1 and 2).

Japanese Patent Publication No. 3-164108 Japanese Patent Publication No. 5-153842

However, in the technology described in Patent Documents 1 and 2, a first operating device for switching the reaping clutch and threshing clutch between the connected state and the blocked state in the engine room containing the engine, and a second operating device for switching the discharge clutch between the connected state and the blocked state 2 Because the operating device was placed, there was a drawback in not being able to secure space for placing other parts. In addition, there was a problem that the control program became complicated because the driving device for driving the first operating device and the driving device for driving the second operating device were independent.

Therefore, the purpose of the present invention is to implement a compact and easy-to-control clutch operating device that switches the power transmitted to a plurality of operating parts such as a reaping clutch, a threshing clutch, and an discharge clutch between the connected state and the blocked state.

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

That is, the invention described in claim 1 includes a first clutch (21) for transmitting drive output rotation to the first operating unit (3), and a second clutch (22) for transmitting drive output rotation to the second operating unit (4). and a clutch operating device for switching the third clutch 23, which transmits the drive output rotation to the third operation unit 8, between the connected state and the blocked state, and a rotation shaft 55 that is rotationally driven by the driving means 50. and a rotating body 57 and a cam 58 that rotate integrally with the rotating shaft 55, and a rocking member 47 that swings in conjunction with the rotation of the cam 58, and the rotating body ( 57), a first groove 57A and a second groove 57B extending in different phases in the circumferential direction about the rotation axis 55 are formed, and the first clutch 21 is 1, the second clutch 22 is connected to the swing member 47, the third clutch 23 is connected to the second groove 57B, and the driving means 50 is connected to the second groove 57B. The rotation shaft 55 is rotated forward to connect the second clutch 22 and the first clutch 21, and the rotation shaft 55 is rotated reversely by the drive means 50 to connect the third clutch 23. It is a clutch operating device characterized in that it is configured to connect.

The invention according to claim 2 is according to claim 1, wherein the first clutch 21 and the second clutch 22 are blocked by reverse rotation of the rotation shaft 55, and the third clutch 23 is connected. It is made with a clutch operating device.

The invention described in claim 3 is according to claim 1 or 2, wherein the end of the first wire 41 that operates the first clutch 21 is movably coupled to the first groove 57A 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 to the first wire 43. 2 It is a clutch operating device that is movable in the direction extending with respect to the groove 57B.

The invention described in claim 4 is the clutch according to claim 3, wherein the distance from the rotation axis 55 to the first groove 57A and the distance from the rotation axis 55 to the second groove 57B are set to an equal distance. It was done with an operating device.

The invention according to claim 5 is the connection position of the second wire 42 in the rocking member 47 from the first support shaft 46, which is the swing center of the rocking member 47, according to claim 4. Clutch operation in which the distance to the second support shaft 47A is set to a distance equal to the distance from the rotation shaft 55 to the first groove 57A and the distance from the rotation shaft 55 to the second groove 57B. It was done with a device.

(Effects of the Invention)

According to the invention described in claim 1, a rotating shaft 55 driven to rotate by a driving means 50, a rotating body 57 and a cam 58 rotating integrally with the rotating shaft 55, and a cam 58 A rocking member 47 that oscillates in response to the rotation of the rotary body 57 is provided, and a first groove 57A and a second groove 57A extending in a circumferential direction around the rotation axis 55 with different phases are provided on the rotating body 57. A second groove 57B is formed, the first clutch 21 is connected to the first groove 57A, the second clutch 22 is connected to the swing member 47, and the third clutch 23 is connected to the first groove 57A. 2 In connection with the groove 57B, the rotation shaft 55 is rotated forward by the drive means 50, the second clutch 22 and the first clutch 21 are connected, and the rotation shaft (55) is connected by the drive means 50. 55) is rotated in reverse to connect the third clutch 23, so that the first clutch 21, the second clutch 22, and the third clutch 23 are connected using one driving device 50. Can be switched to blocking state. Accordingly, the clutch operating device can be configured compactly, and the control program of the driving means 50 can be simplified.

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the first clutch 21 and the second clutch 22 are blocked by reverse rotation of the rotating shaft 55, and the third clutch ( 23) is connected, the third operation unit 8 can be driven while the load on the drive output source is reduced by stopping the operation of the first operation unit 3 and the second operation unit 4. .

According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the end of the first wire 41 that operates the first clutch 21 is extended in the direction relative to the first groove 57A. The end of the second wire 42, which is movably coupled and operates the second clutch 22, is connected to the swing member 47 and the end of the third wire 43, which operates the third clutch 23. Since is movably coupled to the second groove 57B in the extending direction, the first clutch 21 is connected to the first wire 41, the second clutch 22 is connected to the second wire 42, 3 The clutch 23 can be remotely operated via the third wire 43, thereby increasing the freedom of arrangement of the clutch operating device.

According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, the distance from the rotation axis 55 to the first groove 57A and the distance from the rotation axis 55 to the second groove 57B are Since the distance is set to be equal, the first clutch 21 and the third clutch 23 can be switched with equal moments or equal strokes, and the structure of each clutch can be shared.

According to the invention described in claim 5, in addition to the effect of the invention described in claim 4, a second wire ( The distance to the second support shaft 47A, which is the connection position of 42), is equal to the distance from the rotation axis 55 to the first groove 57A and the distance from the rotation axis 55 to the second groove 57B. Since this has been set, the states of the first clutch 21, the second clutch 22, and the third clutch 23 can be switched to equal moments or equal strokes, making it possible to share the structures of each clutch.

Figure 1 is a left side view of the combine.
Figure 2 is a top view of the combine.
Figure 3 is a front view of the combine.
Figure 4 is a rear view of the combine.
Figure 5 is a left side view explaining the clutch operating device.
Figure 6 is a left side view of the clutch operating device.
Figure 7 shows (a) a top view, (b) a left side view, and (c) a rear view of the clutch operating device.
Figure 8 is an explanatory diagram of the drive of the clutch operating device when the harvesting and threshing lever is operated to the stop position.
Figure 9 is an explanatory diagram of the drive of the clutch operating device when the harvesting and threshing lever is operated to the threshing position.
Figure 10 is an explanatory diagram of the drive of the clutch operating device when the reaping and threshing lever is operated to the reaping and threshing position.
Fig. 11 is an explanatory diagram of the driving of the clutch operating device when the discharge lever is operated to the discharge position.
12 is a transmission diagram of the output rotation of the engine.
13 is a connection diagram of the control device.

The present invention will be described with reference to the drawings. In addition, when viewed from the operator, the directions are conveniently indicated and explained with the front as the front, the rear as the rear, the right hand as the right, and the left as the left.

As shown in Figures 1 and 2, the combine is equipped with a traveling device 2 consisting of a pair of left and right crawlers that travel on the soil surface on the lower side of the body frame 1, and a pavement device on the front side of the body frame 1. A reaping device (“first operation unit” in the claims) 3 for harvesting grain stalks is installed, and a threshing device (“second operation unit” in the claims) for threshing and sorting the harvested grain stalks on the rear left side of the reaping device 3. (4) is installed, and a control unit (5) on which the operator rides is installed on the rear right side of the reaping device (3).

An engine room 6 is formed on the lower side of the control unit 5 to mount an engine (drive output source) E, and on the rear side of the control unit 5 is a grain tank 7 that stores grains that have been threshed and sorted. ) is installed on the rear side of the grain tank 7, and consists of a vertical discharge auger extending in the vertical direction for discharging grains to the outside and a horizontal discharge auger extending in the anteroposterior direction (“third operating unit” in the claims). )(8) is installed.

A front panel 10 equipped with a control lever 15, etc. is disposed on the front side of the cockpit 5A of the control unit 5, and a side panel 11 with a main gear lever 16, etc. installed on the left side of the cockpit 5A. ) is placed. The main gear lever 16 can be rotated to a forward position with the upper portion inclined toward the front with the lower portion as the center and a reverse position with the upper portion inclined toward the rear with the lower portion as the center. The forward position of the main gear lever 16 and The reverse position is detected by the forward position switch 16A and the reverse position switch 16B, and the detected value is input to the control device 65 through the input port of the control device 65.

On the rear side of the main gear lever 16 on the side panel 11, a work lever is provided to perform a switching operation between the connected state (state in which the driving force is transmitted) and the blocked state (state in which the driving force is transmitted) of the work clutch. there is.

The work clutch includes a reaping clutch (“first clutch” in the claims) 21 installed on an electric drive that transmits the output rotation of the engine E (“drive output rotation” in the claims) to the reaping device 3, and an engine ( A threshing clutch (“second clutch” in the claims) 22 installed on the transmission that transmits the output rotation of E) to the threshing device 4, and the output rotation of the engine E to the grain tank 7 and the discharge auger. It is composed of a discharge clutch (“third clutch” in the claims) 23 installed on the transmission that is transmitted to (8). All are composed of a belt tension clutch type.

The work lever includes a reaping and threshing lever 31 installed on the rear side of the main speed lever 16 in the side panel 11, and a discharge installed on the rear side of the reaping and threshing lever 31 in the side panel 11. It consists of a lever (32).

The harvesting threshing lever 31 has a stop position with the upper part inclined toward the front with the lower part as the center, a threshing position with the upper part erected on the upper side with the lower part as the center, and a reaping position with the upper part inclined toward the rear with the lower part as the center. It can be rotated to the threshing position. In this specification, the stop position refers to a position in which the clutch operating device 40 is driven to put the reaping clutch 21 and the threshing clutch 22 in a blocked state, and the threshing position refers to a position in which the clutch operating device 40 is driven to place the harvesting clutch 22 in a blocked state. (21) is in a blocked state and the threshing clutch 22 is in a connected state. The reaping threshing position refers to a state in which the clutch operating device 40 is driven to connect the reaping clutch 21 and the threshing clutch 22. It refers to the location of .

The stop position of the reaping threshing lever 31, the threshing position, and the reaping threshing position are detected by the stop position switch 34A, the threshing position switch 34B, and the reaping threshing position switch 34C, and the detected value is controlled. It is input to the control device 65 through the input port of the device 65. Additionally, a potentiometer may be used instead of the position switch, and a rotary dial device may be used instead of the harvesting and threshing 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 values are input to the control device 65 through the input port of the control device 65. do. Additionally, a potentiometer can be used instead of a position switch.

The discharge lever 32 can be rotated between a discharge position where the upper portion is inclined toward the front with the lower portion as the center and a stop position where the upper portion is inclined toward the rear with the lower portion as the center. In this specification, the discharge position refers to a position in which the clutch operating device 40 is driven to place the discharge clutch 23 in the connected state, and the stop position refers to the position in which the clutch operating device 40 is driven to place the discharge clutch 23 in the closed state. It refers to the location of .

As shown in Fig. 5, the clutch operating device 40 is disposed below the side panel 11. The clutch operating device 40 and the reaping 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 (in the claims) is connected by a "second wire") 42, and 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 reaping clutch 21 includes a pulley 12B supported on the output shaft 12A of the transmission 12 installed on the electric downstream side of the engine E and the reaping frame 13 of the reaping device 3. It is formed as a tension arm that tensions or relaxes the belt wound on the pulley 13B supported on the counter shaft 13A extending in the left and right directions at the top of the . In addition, 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 harvesting clutch 21 is in a connected state. , when the wire 41 is extruded forward by the clutch operating device 40, the belt is relaxed and the harvesting clutch 21 is in a blocked state.

The threshing clutch 22 includes a pulley 14A supported on the output shaft 14 of the engine E and a pulley 17A supported on a counter shaft 17 extending in the left and right directions on the front side of the threshing device 4. It is formed with a tension arm that tensions or relaxes the belt wound around the belt. In addition, when the wire 42 is pulled rearward 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 a connected state. , when the wire 42 is extruded forward by the clutch operating device 40, the belt is relaxed and the threshing clutch 22 is in a blocked state.

The discharge clutch 23 extends in the front-back direction and is installed on the pulley 18B supported on the output shaft 18A of the bevel gear box 18 installed on the transmission downstream side of the engine E and the lower part of the grain tank 7. It is formed as a tension arm that tensions or relaxes the belt wound around the pulley 7B supported on the spiral shaft 7A. Moreover, the rear part of the conveyance spiral shaft 7A is connected to the auger spiral shaft 8A of the discharge auger 8 via the bevel gear box 19. In addition, when the wire 43 is pulled rearward 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 a connected state. , when the wire 43 is pushed forward by the clutch operating device 40, the belt is relaxed and the discharge clutch 23 is in a blocked state.

As shown in FIGS. 6 and 7, the wire 41 is formed of an outer cable 41A and an inner cable 41B, and the rear end of the outer cable 41A is connected to the front of the case 45 of the clutch operating device 40. It is detachably fixed to the top of the barrier. The wire 43 is formed of an outer cable 43A and an inner cable 43B, and the rear end of the outer cable 43A is detachably fixed to the lower part of the front wall of the case 45. The wire 42 is formed of an outer cable 42A and an inner cable 42B, and the rear end of the outer cable 42A is removable from the fixed stay 45B installed above the front part of the left wall of the case 45. It is fixed. Accordingly, the wire 41, wire 42, and wire 43 can be stored as assembled parts fixed to the case 45, thereby reducing the assembly work time of the combine.

A support shaft (“first support shaft” in the claims) 46 extending in the left and right directions is provided on the lower side of the rear portion of the left wall of the case 45, and a rocking member 47 is provided on the support shaft 46. The lower part is rotatably fixed. Additionally, both left and right sides of the support shaft 46 are supported on the left and right walls of the case 45, respectively. Accordingly, the support shaft 46 is firmly fixed to the case 45, and the rocking member 47 can be smoothly rocked around the support shaft 46.

On the left wall of the case 45, the portion opposite to the rotation trajectory of the upper part of the rocking member 47 is provided with a support shaft extending in the left and right directions provided on the upper part of the rocking member 47 (the “second support shaft in the claims”). 」) An arc-shaped notch groove 45A is formed centered on the support shaft 46 to which 47A is coupled. Additionally, as shown in FIG. 7, the swing member 47 may be disposed inside the case 45 so that the left portion of the support shaft 47A extends from the left wall of the case 45 to the left.

A potentiometer 48 is fixed to approximately the center of the left wall of the case 45 via a fixing stay 45C, and the input shaft of the potentiometer 48 has a connection pin 48A having a U-shaped notch formed at the distal end. It is connected to an offset axis 49 that rotates around the rotation axis 55.

A motor (“driving means” in the claims) 50 and a reducer 51 are detachably fixed to the right wall of the case 45. Accordingly, the motor 50 and the reducer 51 can be stored as assembled parts fixed to the case 45, thereby reducing the assembly work time of the combine.

A rotation shaft 55 extending in the left and right directions is provided at approximately the center of the case 45. Additionally, both left and right ends of the rotating shaft 55 are fixed to the case 45 via bearings. The rotating shaft 55 is connected to the rotating body 56 through which the output rotation of the motor 50 is transmitted in order from the right, the outer cable 41A of the wire 41, and the outer cable 43A of the wire 43. The rotating body 57 and the cam 58 on which the roller 47B slides installed on the support shaft 47A of the swing member 47 are fixed at a predetermined interval in the left and right directions. Accordingly, by rotating the motor 50, the rotating shaft 55, the rotating body 56, the rotating body 57, and the cam 58 can be rotated integrally, and one motor 50 By pulling the wire 41, wire 42, and wire 43 to the rear, the connection and blocking states 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 reaping threshing lever 31 is operated to the stop position are demonstrated.

As shown in FIG. 8, when viewed from the center of the rotation axis 55, the rotating body 56 extends clockwise from approximately 5 o'clock to approximately 11 o'clock in the radial direction and is formed in a fan-shaped shape with a central angle of approximately 180°. there is. A gear portion 56A that engages with a gear 51A supported on the output shaft of the reducer 51 is formed on the outer peripheral portion of the fan-shaped arc, and the radial central portion of the fan-shaped shape is fixed to the rotation shaft 55. . Additionally, the radius of the fan-shaped shape is formed to have a smaller diameter than the radius of the rotating body 57 and the radius of the cam 58.

When viewed from the center of the rotation axis 55, the rotation body 57 is formed in a substantially circular shape. The upper part of the outer peripheral part of the rotating body 57 is an arc-shaped notch groove centered on the rotating axis 55 to which the pin 41C extending in the left and right directions installed at the rear end of the inner cable 41B of the wire 41 is coupled ( A "first groove" (57A) in the claims is formed, and a pin 43C extending in the left and right directions is provided at the rear end of the inner cable 43B of the wire 43 at the lower part of the outer peripheral part of the rotating body 57. ) is formed with an arc-shaped notch groove (“second groove” in the claims) 57B centered on the rotation axis 55 to which

The notch groove 57A extends clockwise from approximately 10 o'clock to approximately 1 o'clock in the radial direction and is formed in an arc shape with a central angle of approximately 90°, and the notch groove 57B is approximately 4 degrees clockwise in the radial direction. It extends from o'clock to approximately 7 o'clock and is formed in a fan-shaped shape with a central angle of approximately 90°. The radius of the notch groove (57A) and the radius of the notch groove (57B) are formed to have the same radius, and the radius of the notch groove (57A) and the radius of the notch groove (57B) are formed to have a larger diameter than the radius of the rotating body (56). It is done. Additionally, the center of the rotating body 57 is fixed to the rotating shaft 55. Accordingly, by rotating the rotating body 57, the inner cable 41B and the inner cable 43B can be pulled backward with the same moment, thereby simplifying the control program of the control device 65.

In this embodiment, the pin 41C is coupled to a portion of the notch groove 57A that is inclined at 1 o'clock from the center in the clockwise direction, and the pin 43C is coupled to a portion of the notch groove 57B clockwise at 7 o'clock. It is bound to the site of . In addition, in order to reduce the weight of the rotating body 57, a notch portion approximately inverted U-shaped is provided radially inward at approximately 7 o'clock to approximately 9 o'clock clockwise in the radial direction of the circular arc. (57C) is formed.

When viewed from the center of the rotation axis 55, the cam 58 has an arc-shaped arc portion 58A extending clockwise from approximately 1 o'clock to approximately 3 o'clock in the radial direction, and an arc portion 58A extending approximately clockwise in the radial direction. A left extension portion 58B extends from the left end at the 1 o'clock side toward the radial center fixed to the rotation axis 55, and a left extension portion 58B extends from the right end at approximately 3 o'clock side in the clockwise direction of the arc portion 58A to the rotation axis 55. It is formed as a right extension portion 58C extending toward the fixed radial center.

The radius of the circular arc portion 58A is formed to be larger than the radius of the rotating body 57. Accordingly, the roller 47B can move smoothly while sliding on the circular arc portion 58A without colliding with the outer peripheral portion of the rotating body 57. Additionally, the length between the support shaft 46 and the support shaft 47A in the swing member 47 is formed to be the same as the radius of the notch groove 57B and the notch groove 57A. Accordingly, the cam 58 is rotated to rotate the swing member 47, and the inner cable 42B can be pulled toward the rear with the same moment as the inner cable 41B and the inner cable 43B, so that the control device 65 The control program can be simplified.

The right connecting portion 58C is formed of an outer arc portion 60 located on the outer side in the radial direction and an inner arc portion 61 located on the inner side in the radial direction. The outer arc portion 60 is formed so that the support shaft 47A can move from the inside of the notch groove 45A toward the outside while following the roller 47B that moves while sliding on the outer arc portion 60. In addition, the inner arc portion 61 is formed so that the support shaft 47A can move from the outside of the notch groove 45A toward the inside while following the roller 47B that moves while sliding on the inner arc portion 61.

Next, the states of the clutch operating device 40, wire 41, wire 42, and wire 43 when the harvesting and threshing lever 31 is operated to the stop position, the threshing position, and the harvesting and threshing position. Explain.

As shown in Fig. 8, when the harvesting and threshing lever 31 is operated to the stop position, the gear portion 56A of the rotating body 56 is rotated clockwise from approximately 5 o'clock to approximately 11 o'clock when viewed from the axis of the rotating shaft 55. The notch groove 57A of the rotating body 57 extends clockwise from approximately 10 o'clock to approximately 1 o'clock, and the notched groove 57B of the rotating body 57 extends clockwise from approximately 4 o'clock to approximately 7 o'clock. The arc portion 58A of the cam 58 extends clockwise from approximately 1 o'clock to approximately 3 o'clock. The pin (41C) is coupled to a portion inclined in the 1 o'clock direction relative to the radial center of the notch groove (57A), and the pin (43C) is coupled to the radial left end of the notch groove (57B) in contact with the roller. (47B) slides in the groove 62 between the outer arc portion 60 and the inner arc portion 61, and the support shaft 47A is engaged at a position inclined toward the inner side than the radial center of the notch groove 45A. It is done.

As a result, the outer cable 41A of the wire 41, the outer cable 42A of the wire 42, and the inner cable 43B of the wire 43 are not pulled toward the rear, and the harvesting clutch 21 , the threshing clutch 22 and the discharge clutch 23 are in a blocked state.

As shown in Fig. 9, when the harvesting and threshing lever 31 is operated from the stop position to the threshing position, the rotating body 56 is rotated in the forward rotation direction of the motor 50 when viewed from the axis of the rotating shaft 55. , the rotating body 57 and the cam 58 rotate clockwise by 50°. Accordingly, the pin 41C moves to the left end in the radial direction of the notch groove 57A, the pin 43C moves to a portion inclined toward the right end rather than the radial center of the notch groove 57B, and the roller 47B moves to the right end of the circular arc portion 58A while sliding on the outer arc portion 60, and the support shaft 47A moves toward the radial outer portion of the notch groove 45A.

As a result, the outer cable 41A of the wire 41 and the inner cable 43B of the wire 43 are not pulled toward the rear, and the harvesting clutch 21 and the discharge clutch 23 are in a blocked state. On the other hand, the outer cable 42A of the wire 42 is pulled toward the rear through the swing member 47, and the threshing clutch 22 is in a connected state, and the output rotation of the engine E is transmitted through the threshing clutch 22. It is electrically driven by the threshing device 4 to drive the threshing device 4.

As shown in FIG. 10, when the harvesting and threshing lever 31 is operated from the threshing position to the harvesting and threshing position, the rotor ( 56), the rotating body 57, and the cam 58 rotate clockwise by a further 40°. Accordingly, the pin 41C moves rearward while engaging with the radial left end of the notch groove 57A, and the pin 43C contacts the radial right end of the notch groove 57B, and the roller 47B moves to the left end of the arc portion 58A while sliding on the arc portion 58A, and the support shaft 47A contacts the radial outer portion of the notch groove 45A.

As a result, the inner cable 43B of the wire 43 is not pulled toward the rear, and the discharge clutch 23 is in a blocked state. On the other hand, the outer cable 41A of the wire 41 and the outer cable 42A of the wire 42 are pulled toward the rear, and the reaping clutch 21 and the threshing clutch 22 are in a connected state, and the engine E The output rotation can be transmitted to the reaping device 3 and the threshing device 4 through the reaping clutch 21 and the threshing clutch 22, respectively, to drive the reaping device 3 and the threshing device 4, respectively.

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, the reaping threshing lever 31 is operated to the stop position, and the discharge lever 32 is operated to the discharge stop position, the rotation shaft 55 When viewed from the axis, the gear portion 56A of the rotating body 56 extends clockwise from approximately 5 o'clock to approximately 11 o'clock, and the notch groove 57A of the rotating body 57 extends clockwise from approximately 10 o'clock to approximately 1 o'clock. The notch groove 57B of the rotating body 57 extends clockwise from approximately 4 o'clock to approximately 7 o'clock, and the arc portion 58A of the cam 58 extends clockwise from approximately 1 o'clock to approximately 3 o'clock. It is extended. The pin (41C) is coupled to a portion inclined in the 1 o'clock direction relative to the radial center of the notch groove (57A), and the pin (43C) is coupled to the radial left end of the notch groove (57B) in contact with the roller. (47B) slides in the groove 62 between the outer arc portion 60 and the inner arc portion 61, and the support shaft 47A is engaged at an inclined position on the radial inner side of the notch groove 45A. .

As a result, the outer cable 41A of the wire 41, the outer cable 42A of the wire 42, and the inner cable 43B of the wire 43 are not pulled toward the rear, and the harvesting clutch 21 , the threshing clutch 22 and the discharge clutch 23 are in a blocked state.

As shown in FIG. 11, when the discharge lever 32 is operated from the discharge stop position to the discharge position, that is, the harvesting and threshing lever 31 is operated to the stop position, and the discharge lever 32 is moved from the discharge stop position to the discharge position When operated, the motor 50 rotates in the reverse direction when viewed from the center of the rotation shaft 55, causing the rotary body 56, the rotary body 57, and the cam 58 to rotate in a counterclockwise direction. Rotates 40°. Accordingly, the pin 41C contacts the radial right end of the notch groove 57A, the pin 43C contacts the radial left end of the notch groove 57B, and the roller 47B contacts the inner arc portion ( 61), the support shaft 47A moves toward the radial inner portion of the notch groove 45A.

Next, the motor 50 rotates further in the reverse direction, so that the rotating body 56, the rotating body 57, and the cam 58 rotate approximately 40° in the forward rotating direction. Accordingly, the pin 41C moves forward while engaging with the radial right end of the notch groove 57A, and the pin 43C moves rearward while engaging with the radial left end of the notch groove 57B, The roller 47B moves while sliding on the inner arc portion 61, and the support shaft 47A contacts the radial inner portion of the notch groove 45A.

As a result, the outer cable 41A of the wire 41 and the outer cable 42A of the wire 42 are not pulled toward the rear, and the reaping clutch 21 and the threshing clutch 22 are in a blocked state. Meanwhile, the inner cable 43B of the wire 43 is pulled toward the rear, the discharge clutch 23 is in a connected state, and the output rotation of the engine E is discharged to the grain tank 7 through the discharge clutch 23. It is electrically driven by the auger 8 to drive the conveying spiral shaft 7A of the grain tank 7 and the auger spiral shaft 8A of the discharge auger 8.

The rotation angle of the rotation shaft 55 is measured by the potentiometer 48 through the offset shaft 49 and connection pin 48A installed on the cam 58, and the measured value is input to the control device 65 through the input port. do. Accordingly, excessive rotation of the rotation shaft 55 by the motor 50 can be prevented.

Next, the connection diagram of the control device 65 will be described. As shown in FIG. 13, on the input side of the control device 65 installed on the control unit 5, there is a device that detects that the lifting height of the reaping device 3 installed on the reaping frame 13 of the reaping device 3 has reached a predetermined height. Height switch 70, supply and demand switch 71 installed on the left wall of threshing device 4, emergency stop switch 72, straw discharge switch 73 for detecting retention of straw discharge, and control unit 5 ), an ignition switch 74 for starting the engine E installed on the front panel 10, and a main speed lever 16 installed on the lower side of the main speed lever 16 on the side panel 11 of the control unit 5. ), the forward position switch 16A for detecting the operating position, the backward position switch 16B, and the operating position of the reaping lever 31 provided on the lower side of the reaping lever 31 of the side panel 11 of the operating unit 5. a position switch for detecting the operation position of the discharge lever 32 installed on the lower side of the discharge lever 32 of the side panel 11 of the operation unit 5, and a rotation shaft of the clutch operation device 40. A potentiometer (48) that detects the rotation angle of (55), a pivot switch (75) that detects that the pivot angle of the discharge auger (8) installed on the discharge auger (8) has reached a predetermined angle, and a discharge auger (8) The storage switch 76, which detects that it is in the provisional storage position, and the clogging switch 77, which detects retention of grains in the discharge auger 8, are connected via a predetermined input interface circuit.

The position switch is provided with a stop position switch 34A, a threshing position switch 34B, and a reaping threshing position switch 34C, and the position switch is provided with a stop position switch 35A and a discharge position switch 35B. .

Meanwhile, on the output side of the control device 65, a motor 50 fixed to the case 45 of the clutch operating device 40 is connected through a predetermined output interface circuit.

When the lifting height of the reaping device 3 reaches a predetermined height and the input value of the height switch 70 is ON, the motor 50 is rotated in the reverse direction regardless of the operating position of the reaping threshing lever 31 to harvest the harvest. The clutch 21 or the reaping clutch 21 and the threshing clutch 22 are in a blocked state. Accordingly, work safety can be improved and noise generated from the reaping device 3 and the threshing device 4 during the turning operation of the combine can be suppressed.

When the normal harvesting and threshing operation is changed to the supply and demand threshing operation and the input value of the supply and demand switch 71 is turned on, the motor 50 is rotated in the reverse direction regardless of the operating position of the harvesting and threshing lever 31, and the harvesting clutch ( 21) is in the blocked state, and the threshing clutch 22 is in the connected state. Accordingly, work safety can be improved.

When the input value of the emergency stop switch 72 to avoid an emergency situation becomes ON, the engine E is stopped and the motor 50 is rotated in the reverse direction regardless of the operation position of the harvesting and threshing lever 31. The reaping clutch 21 and the threshing clutch 22 are in a blocked state. Accordingly, the rotation of the feed chain installed along the threshing hole opened on the upper left side of the threshing device 4 can be stopped.

When the straw discharged to the outside from the threshing device 4 stays above a predetermined amount and the input value of the straw discharge switch 73 is turned ON, the motor 50 is turned on regardless of the operating position of the harvesting threshing lever 31. By rotating in the reverse rotation direction, the reaping clutch 21 and the threshing clutch 22 are in a blocked state. Accordingly, it is possible to prevent excessive straw discharge from remaining in the threshing device 4.

When the reaping threshing lever 31 is operated in the threshing position or the reaping threshing position, the engine E does not start and remains stopped even if the input value of the starting switch 74 for starting the engine E is ON. Then, the motor 50 is rotated in the reverse direction to put the reaping clutch 21 and the threshing clutch 22 in a blocked state. Accordingly, it is possible to prevent the reaping device 3 and the threshing device 4 from starting to drive simultaneously due to return failure of the reaping and threshing lever 31 when the engine E is started.

In order to move the traveling device 2 backward, when the main gear lever 16 is operated to the reverse position and the input value of the reverse position switch 16B is turned ON, the motor 50 ) is rotated in the reverse direction to put the reaping clutch 21 or the reaping clutch 21 and the threshing clutch 22 in a blocked state. Accordingly, work safety can be improved and noise generated from the reaping device 3 and the threshing device 4 when the combine is moving backwards can be suppressed.

When the reaping and threshing lever 31 is operated to the stop position and the input value of the stop position switch 34A is ON, the motor 50 is rotated in the reverse direction as described above to connect the reaping clutch 21 and the threshing clutch 22. ) is in the blocked state, and when the reaping threshing lever 31 is operated to the threshing position and the input value of the threshing position switch 34B is turned ON, the motor 50 is rotated in the forward rotation direction as described above to clutch the threshing clutch. With (22) in the connected state, when the harvesting and threshing lever 31 is operated to the harvesting and threshing position and the input value of the harvesting and threshing position switch 34C is turned ON, the motor 50 is rotated in the forward rotation direction as described above. It rotates to bring the reaping clutch 21 and the threshing clutch 22 into a connected state. Moreover, when the reaping threshing lever 31 is operated to the threshing position or the reaping threshing position, the discharge clutch 23 is in a blocked state.

When the harvesting threshing 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 reaping clutch 21, the threshing clutch 22, and the discharge clutch 23 are in a blocked state, the reaping threshing lever 31 is operated to the stop position, and the input value of the stop position switch 34A is turned ON. When the discharge lever 32 is operated to the discharge position and the input value of the discharge position switch 35B is turned ON, the reaping clutch 21 and the threshing clutch 22 are placed in a blocked state, and the discharge clutch 23 is connected. state. Accordingly, the connection state and blocking state of the reaping clutch 21, the threshing clutch 22, and the discharge clutch 23 can be switched using one motor 50, thereby simplifying the control program of the control device 65. This can be done, and problems caused by the motor 50 can be reduced.

The input value of the potentiometer 48 is compared with the counter value built into the motor 50, and when the difference is greater than a predetermined value, the motor 50 or the motor 50 and the engine E are stopped. As a result, work safety can be improved and problems caused by disconnection, etc. can be avoided at an early stage.

When the discharge port of the discharge auger (8) is located on the upper side of the threshing device (4) or the grain tank (7) and the input value of the swing switch (75) is turned ON, the motor ( 50) is rotated in the forward direction to put the discharge clutch 23 in the blocked state. Thereby, loss at the time of discharge of grains can be reduced.

When the discharge auger 8 is placed on the auger receiver installed in the storage position and the input value of the storage switch 76 is turned ON, the motor 50 is rotated in the forward direction regardless of the operating position of the discharge lever 32. Put the discharge clutch (23) in the blocked state. Thereby, loss at the time of discharge of grains can be reduced.

When grains remain in the discharge auger 8 above 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 to discharge the grains regardless of the operating position of the discharge lever 32. Put the clutch (23) in the blocked state. Accordingly, damage to the discharge auger (8) can be prevented.

3: Reaping device (first operating part) 4: Threshing device (second operating part)
8: Discharge auger (third operating part) 21: Reaping 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: Rotating member 47A: Support shaft (second support shaft)
50: motor (driving means) 55: rotation axis
57: Rotating body 57A: Notch groove (first groove)
57B: Notch groove (second groove) 58: Cam
E: Engine (drive power source)

Claims (5)

A first clutch 21 transmits the drive output rotation to the first operation unit 3, a second clutch 22 transmits the drive output rotation to the second operation unit 4, and a third clutch 22 transmits the drive output rotation to the second operation unit 4. A clutch operating device that switches the third clutch (23) transmitted to the operating unit (8) between the connected state and the blocked state,
The rotational drive of the driving means 50 includes a first rotating body 56 that is electrically driven, a rotating shaft 55 on which the first rotating body 56 is supported, and a second rotating body that rotates integrally with the rotating shaft 55. Installing the entire body (57), the cam (58), and a rocking member (47) that swings in conjunction with the rotation of the cam (58),
Forming a first groove (57A) and a second groove (57B) in the second rotating body (57) extending in a circumferential direction about the rotating axis (55) with different phases,
The first clutch 21 is connected to the first groove 57A, the second clutch 22 is connected to the swing member 47, and the third clutch 23 is connected to the second groove 57B. connect,
The driving means 50 rotates the rotating shaft 55 forward to connect the second clutch 22 and the first clutch 21, and the driving means 50 rotates the rotating shaft 55 in the reverse direction. It is configured to connect the third clutch 23,
The end of the first wire 41 for operating the first clutch 21 is movably coupled to the first groove 57A in an extending direction, and the second wire for operating the second clutch 22 is coupled. The end of (42) is connected to the swing member (47), and the end of the third wire (43) that operates the third clutch (23) is movable in an extending direction with respect to the second groove (57B). combine,
Setting the distance from the rotation axis 55 to the first groove 57A and the distance from the rotation axis 55 to the second groove 57B to be equal distances,
The distance from the first support shaft 46, which is the center of rotation of the rocking member 47, to the second support shaft 47A, which is the connection position of the second wire 42 in the rocking member 47, is A clutch operating device characterized in that the distance is set equal to the distance from the rotation shaft (55) to the first groove (57A) and the distance from the rotation shaft (55) to the second groove (57B). According to claim 1,
A clutch operating device configured to block the first clutch (21) and the second clutch (22) by reverse rotation of the rotation shaft (55) and connect the third clutch (23). delete delete delete