JP2015053883A - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine which operates a reaping clutch and a threshing clutch with a single turning operation body and in which a reaping-side linkage mechanism and a threshing-side linkage mechanism hardly interfere with each other, and which can be efficiently arranged, and can stably operate the reaping clutch and the threshing clutch.SOLUTION: A transmission device of a combine comprises: a reaping clutch 48 which connects and disconnects power transmission to a pre-processing part 4; a threshing clutch 38 which connects and disconnects power transmission to a thresher 10; a turning operation body 52 which is driven by an actuator 53 so as to be turnable; a reaping-side linkage mechanism 56 which makes the turning operation body 52 and the reaping clutch 48 mechanically communicate with each other; and a threshing-side linkage mechanism 54 which makes the turning operation body 52 and the threshing clutch 38 mechanically communicate with each other. The reaping-side linkage mechanism 56 is arranged at one side, and the threshing-side linkage mechanism 54 is arranged at the other side while the turning operation body 52 is sandwiched between both the sides.

Description

  The present invention relates to a combine that operates a reaping clutch and a threshing clutch with a single rotating operation body.

  A reaping clutch that interrupts power transmission to the pretreatment unit connected to the front part of the traveling machine body, a threshing clutch that is installed on the traveling machine body and intermittently transmits power transmission to the threshing device, and is rotated by an actuator. A rotationally operated rotating operation body, a cutting side interlocking mechanism that mechanically interlocks the rotating operation body and the cutting clutch so that the cutting clutch is intermittently operated by the rotation of the rotating operating body, and the rotation A combine shown in Patent Document 1 including a threshing-side interlocking mechanism that mechanically interlocks the rotational operation body and the threshing clutch so that the threshing clutch is intermittently operated by the rotation of the operation body is conventionally known.

Japanese Patent No. 4724133 Patent No. 4811981 Japanese Patent No. 3570955

  In the above-described combine, the harvesting clutch and the threshing clutch can be intermittently operated by a single rotating operation body rotated by the actuator, while the harvesting side interlocking mechanism and the threshing side interlocking mechanism are rotated. Since it is centrally arranged on one side of the operating body, the mowing side interlocking mechanism and the threshing side interlocking mechanism interfere with each other, and the intermittent operation of the mowing clutch and the threshing clutch may not be stable.

  In the present invention, in a combine that operates the reaping clutch and the threshing clutch with a single rotating operation body, the reaping side interlocking mechanism and the threshing side interlocking mechanism are unlikely to interfere with each other, and can be arranged efficiently. It is an object to provide a combine that can operate a threshing clutch stably.

  In order to solve the above-mentioned problem, first, a reaping clutch 48 for intermittently transmitting power to the pretreatment unit 4 connected to the front part of the traveling machine body 3 and a threshing process that is installed on the traveling machine body 3 side and performs a threshing process. The threshing clutch 38 for intermittently transmitting power to the apparatus 10, the rotational operation body 52 that is rotationally driven by the actuator 53, and the rotation of the rotational operation body 52 so that the cutting clutch 48 is intermittently operated. A cutting-side interlocking mechanism 56 that mechanically links the moving operation body 52 and the cutting clutch 48, and the turning operation body 52 and the threshing clutch so that the threshing clutch 38 is intermittently operated by the rotation of the turning operation body 52. In the combined transmission device provided with the threshing-side interlocking mechanism 54 that mechanically interlocks with the 38, the reaping-side interlocking mechanism 56 is disposed on one side of the rotation operation body 52, and the other side is disposed on the other side. Is characterized in that a grain side interlocking mechanism 54.

  Secondly, a base member 51 that rotatably supports the rotating operation body 52 is provided, and a cutting side interlocking mechanism 56 is disposed on one side of the base member 51 and a threshing side interlocking mechanism 54 is disposed on the other side. It is characterized by that.

  Third, a reaping side linkage mechanism 56, a rotation operation body 52, and an actuator 53 are provided on one side of the base member 51, and a threshing side linkage mechanism 54 is provided on the other side of the base member 51. It is characterized by.

  Fourthly, a potentiometer 57 that detects the rotation position of the rotation operation body 52 and a position detection switch 58 that detects that the rotation operation body 52 has been rotated to a predetermined position are trimmed by the base member 51. It is characterized in that it is installed directly or via a support member on the side where the side linkage mechanism 56 is arranged.

  Fifth, the threshing side interlocking mechanism 54 is a linkage mechanism including a wire or a rod that mechanically connects the rotating operation body 52 and the threshing clutch 38, and the urging force from the threshing clutch 38 side is rotated. The linkage mechanism is connected to the rotating operation body 52 so that the state of acting on one side of the operating body in the direction of rotation and the state of acting on the other side are switched by the fulcrum crossing action.

  By arranging a cutting-side interlocking mechanism for intermittently connecting the harvesting clutch and a threshing-interlocking mechanism for intermittently connecting the threshing clutch so as to sandwich a rotational operation body that is rotationally driven by an actuator, a single rotational operation body is provided. Since the cutting-side interlocking mechanism and the threshing-side interlocking mechanism that are operated via each other are unlikely to interfere with each other and can be arranged efficiently, the intermittent operation of each clutch is stabilized.

  Further, according to the present invention, a base member that rotatably supports the rotating operation body is provided, and the cutting side interlocking mechanism is disposed on one side of the base member and the threshing side interlocking mechanism is disposed on the other side. It is possible to more efficiently prevent the side interlocking mechanism and the threshing side interlocking mechanism from interfering with each other.

  In addition, according to what provided the cutting side interlocking mechanism, the rotation operation body, and the actuator on one side of the base member, and provided the threshing side interlocking mechanism on the other side of the base member, the threshing side interlocking mechanism The working space can be formed widely.

  In addition, the mowing side interlocking mechanism of the base member is arranged with a potentiometer that detects the rotation position of the rotation operation body and a position detection switch that detects that the rotation operation body has been rotated to a predetermined position. According to what was installed in the side directly or via the support member, the whole apparatus can be comprised compactly.

  The threshing-side interlocking mechanism is a linkage mechanism including a wire or a rod that mechanically connects the turning operation body and the threshing clutch, and the urging force from the threshing clutch side is the turning direction of the turning operation body. According to the linkage mechanism connected to the rotating operation body so that the state acting on one side and the state acting on the other side are switched by the action exceeding the fulcrum, the threshing side having a large operation amount by exceeding the fulcrum The installation space for the interlocking mechanism can be easily secured, and the structure can be simplified as compared with the case of using the cam mechanism.

It is a top view of a combine to which the present invention is applied. It is a front view of a combine to which the present invention is applied. It is a power transmission system diagram of this combine. (A) And (B) is the principal part perspective view which showed the attachment or detachment state of the cover body. (A) And (B) is the top view and right view which showed the clutch operation apparatus. (A) And (B) is the front view and left view which showed the clutch operation apparatus. (A) And (B) is the front view and left view which showed the clutch operation apparatus which abbreviate | omitted the cover body. It is the left view which showed the intermediate state of the clutch operation apparatus. It is the left view which showed the initial state of the clutch operation apparatus. (A) And (B) is the principal part perspective view which showed the attachment or detachment aspect of the cover body in another Example. (A) And (B) is the top view and right view which showed the clutch operation apparatus in another Example. (A) And (B) is the front view and left view which showed the clutch operation apparatus in another Example. (A) And (B) is the front view and left view which showed the clutch operation apparatus which abbreviate | omitted the cover body in another Example.

  1 and 2 are a plan view and a front view of a combine to which the present invention is applied, and FIG. 3 is a power transmission system diagram of the combine. This combine has a vehicle body frame supported by a pair of left and right crawler type traveling devices (travel units) 2L and 2R, and is connected to the traveling vehicle body 3 so as to be driven up and down. The pre-processing unit 4 is provided.

  The pre-processing unit 4 performs a cutting operation for harvesting the cereals in the field that are pulled up by the pulling device and the scraping device and are scraped to the pre-processing unit 4 side by the cutting blade 6, and by the transport device 7. Carrying the harvested cereal to the traveling machine body 3 side is performed. A steering unit 8 on which an operator gets in and performs various operations is provided in the front half of the traveling body 3 on the right (right) direction of travel, and a threshing device 10 is installed on the left side.

  The threshing device 10 rotates around its own axis in a feed chain 9 installed on the left side of the traveling machine body 3 and extending in the front-rear direction, and in a threshing chamber (not shown) provided on the inner left side of the traveling machine body 3. A handling cylinder 11 that is freely supported and is formed in a columnar shape extending in the front-rear direction, a waste transporting device 12 that transports the cereals that have been placed and disposed behind the handling chamber to the rear, and a traveling machine body 3. A post-processing unit 13 installed at the rear end portion, a swinging sorter 14 that is supported on the upper side of a sorting chamber (not shown) formed immediately below the handling cylinder 11 so as to be swingable back and forth, and a sorting chamber A tang fan 16 that is supported on the lower end side of the front end of the vehicle and wakes the sorting air obliquely upward at the rear, and the side of the Glen tank 18 disposed behind the control unit 8 on the right side of the traveling body 3 from the lower end of the sorting chamber. The first helix 17 extended to the sorting chamber and the first helix 17 in the sorting chamber And a double-dip spiral 19, which is installed in the rear.

  Then, the cereals conveyed to the traveling machine body 3 side are transferred to the front end side of the feed chain 9 and are conveyed rearward by the feed chain 9 with the tip side inserted into the handling chamber. In this backward conveyance process, the cereal is handled and removed (threshing process) by the handling cylinder 11 or the like in the handling chamber to be rejected. It is conveyed to the processing unit 13, is cut as it is or by the post-processing unit 13, and is discharged out of the machine from the rear end of the traveling machine body 3.

  On the other hand, the processed material that has been handled and processed by the rotation of the handling cylinder 11 is received by the swinging sorter 14, and after being sorted by the swinging sorter 14, it is selected by the sorting wind. As a result of the sorting, the processed material is divided into the first thing that falls to the first spiral 17 side, the second thing that falls to the second spiral 19 side, and wastes such as sawdust blown upward and rearward. Divided.

  The first thing is transported and accommodated in the grain tank 18 by the first spiral 17 as a grain such as straw, and the second thing is reduced again to the upper front part of the sorting chamber by the second spiral 19 etc. Sorted again by the dynamic sorting body 14 and the sorting wind, the discharged matter is discharged from the rear end portion of the traveling machine body 3 as it is.

  The grain in the Glen tank 18 is discharged out of the machine from the distal end portion of the auger 21 whose base end portion is supported on the right side of the rear portion of the traveling machine body 3 so as to be driven to turn left and right and to swing up and down. Incidentally, the grain in the grain tank 18 is transported to the tip of the auger 21 by the grain discharging device 22 composed of the bottom of the grain tank 18 and a plurality of transport spirals provided in the auger 21. Discharged.

  Next, based on FIG. 3, the power transmission structure of this combine is demonstrated.

  The power of the engine 26 built in the control unit 8 side of the traveling machine body 3 is transmitted to three transmission pulleys 27, 28 and 29 that rotate integrally with the engine output shaft 25. Of the three transmission pulleys 27, 28, and 29, the one that transmits power to the traveling system is the traveling transmission pulley 27, and the one that transmits power to the grain discharging device 22 is the grain discharging side transmission pulley 28, What transmits power to the work system is a work transmission pulley 29.

  The power of the travel transmission pulley 27 is transmitted to a travel HST (travel transmission) 31 that is a hydraulic stepless transmission by belt transmission. The power after the continuously variable transmission by the traveling HST 31 is transmitted to the left and right crawler traveling devices 2L and 2R through the transmission 32. That is, the traveling HST 31 becomes a main transmission that performs traveling shift switching. An auxiliary transmission that performs a traveling shift is also provided in the transmission 32.

  The power of the grain discharge side transmission pulley 28 is intermittently transmitted to the grain carry-out device 22 via the discharge clutch 33. In other words, the power to the grain discharging device 22 is interrupted by turning on and off the discharging clutch 33.

  The rotational power of the work transmission pulley 29 is transmitted to the threshing device 10 and the pretreatment unit 4 to drive them.

  Specifically, the power of the work transmission pulley 29 is attached so that the branch transmission pulley 34 rotates integrally via the work transmission belt 36 wound around the work transmission pulley 29 and the branch transmission pulley 34. It is transmitted to the branch transmission shaft 37. The work transmission belt 36 is provided with a threshing clutch 38, which will be described later, which is composed of a tension pulley that adjusts the tension of the work transmission belt 36 and that intermittently transmits power from the engine output shaft 25 to the branch transmission shaft 37.

  The power of the branch transmission shaft 37 is branched to the handling cylinder 11 side and the second spiral 19 side. The rotational power transmitted to the side of the handling cylinder 11 drives the handling cylinder 11 to rotate, and also drives the above-described waste transporting apparatus 12 to convey. On the other hand, the power transmitted to the second spiral 19 side further causes the second spiral 19 to be transported and branched to the first spiral 17 side and the post-processing unit 13 side.

  The power branched to the post-processing unit 13 drives the post-processing unit 13 to be cut. The power branched to the first spiral 17 side is driven to convey and drive the first spiral 17 and the swing sorting body 14 is driven to swing selection, and then is transmitted to a transmission mechanism 39 arranged on the downstream side of the transmission. The

  The transmission mechanism 39 transmits the power transmitted from the threshing device 10 to the feed chain drive shaft 41 that drives the feed chain 9 and also transmits the power to the cutting transmission shaft 42. The power of the cutting drive shaft 42 is driven by a drive belt 47 wound around a cutting drive pulley 43 that rotates integrally with the cutting drive shaft 42 and a cutting drive pulley 46 that is attached to the cutting drive shaft 44 so as to rotate integrally. The belt is transmitted to the cutting drive shaft 44, and the pulling device, the scraping device, the cutting blade 6, and the conveying device 7 of the pretreatment unit 4 are driven by the rotational power of the cutting drive shaft 44.

  The drive belt 47 is provided with a cutting clutch 48 formed of a tension pulley. The cutting clutch 48 interrupts the power to the preprocessing unit 4 to drive and stop the preprocessing unit 4. The mowing clutch 48 and the threshing clutch 38 are intermittently operated by a clutch operating device (see FIGS. 4 to 9) described in detail later.

  Incidentally, since this cutting clutch 48 is installed in the transmission path between the transmission mechanism 39 and the pretreatment unit 3, the driving of the feed chain 9 is not stopped by the connection of this cutting clutch 48, and the threshing clutch When 38 is connected, it is held in a driving state.

  Next, the configuration of the clutch operating device will be described with reference to FIGS. 4 (A) and 4 (B) are main part perspective views showing how the cover body is attached and detached, and FIGS. 5 (A) and 5 (B) are a plan view and a right side view showing the clutch operating device. FIGS. 6A and 6B are a front view and a left side view showing the clutch operating device, and FIGS. 7A and 7B show the clutch operating device with the cover body omitted. FIG. 8 is a left side view showing an intermediate state of the clutch operating device, and FIG. 9 is a left side view showing an initial state of the clutch operating device.

  From the figure, the clutch operating device includes a plate-like base member 51 disposed and supported on the driver's seat side of the space between the pretreatment unit 3 and the threshing device 10, and a sector gear (rotation) provided on the base member 51. (Operating body) 52, an electric motor (actuator) 53 that is operated by a control unit (not shown) to rotate the sector gear 52, and a threshing side interlocking mechanism 54 that mechanically interlocks with the threshing clutch 38 via the sector gear 52. , A cutting-side interlocking mechanism 56 mechanically interlocking with the cutting clutch 48 via the sector gear 52, a potentiometer 57 for detecting the rotation position of the sector gear 52, and detecting that the sector gear 52 has been rotated to a predetermined position. And a position detection switch 58.

  The sector gear 52 is provided on one side surface (left side surface in the illustrated example) of the base member 51 placed vertically, and the electric motor 53 disposed below the sector gear 52 on the same surface side The sector gear 52 is configured to rotate within a predetermined range.

  Further, the sector gear 52 is provided with a threshing operation pin 61 that protrudes from the sector gear 52 toward the base member 51, and a reaping operation pin 62 that protrudes on the opposite side of the threshing operation pin 61. . The threshing clutch 38 is intermittently operated by the threshing side interlocking mechanism 54 connected to the threshing operation pin 61, and the reaping clutch 48 is intermittently operated by the reaping side interlocking mechanism 56 connected to the cutting operation pin 62. It is configured.

  At this time, an arc-shaped restriction hole 50 through which the threshing interlocking pin 61 is inserted is formed on the upper side of the rotation shaft of the sector gear 52 on the base member 51 side, and the threshing interlocking pin 61 is provided in the sector gear 52. The rotation range can be set within a range in which the rotation is possible with the restriction hole 50 inserted.

  Specifically, when the sector gear 52 is turned so that the threshing interlocking pin 61 is positioned on the rear end side in the front-rear direction of the restriction hole 50 (see FIG. 9), the threshing clutch 38 and the reaping clutch that are tension pulleys are used. The clutch 48 is configured to be in an initial state in which the pulling force is lost and both clutches are disengaged. Further, when the threshing interlocking pin 61 is turned to a predetermined intermediate position (see FIG. 8), only the threshing clutch 38 is connected via the threshing side interlocking mechanism 54 while the cutting state of the reaping clutch 48 is maintained. It is configured to be in an intermediate state to be connected. Furthermore, when the threshing interlocking pin 61 is operated to the front end side in the front-rear direction of the restriction hole 50 (see FIG. 7), the cutting clutch is connected via the cutting-side interlocking mechanism 56 while the connected state of the threshing clutch 38 is maintained. 48 is also configured to be connected.

  Incidentally, the electric motor 53 that rotationally drives the sector gear 52 generates a static torque to prevent the electric motor 53 from rotating when the drive is stopped so that the initial state, the intermediate state, and the connected state are maintained. It is configured as follows.

  As shown in FIG. 4 (B), the reaping interlock mechanism 56 has a cylindrical portion 66 attached to the rotating shaft portion 55 of the sector gear 52, and is formed so as to protrude from the cylindrical portion 66 and the reaping side operation pin. The cutting-side operation arm 67 configured to be pushed to the connection state side by 62, the connection arm 68 formed separately from the tubular portion 66 so as to protrude upward from the cutting-side operation arm 67, and the connection A cutting rod comprising a connecting rod 71 attached to the arm 68 via a bracket 69, an elastic member 72 attached to the connecting rod 71 on the end side, a tension arm 65 and a tension pulley 70 connected to the elastic member 72 And a clutch 48.

  Further, the tension arm 65 of the reaping clutch 48 is provided with an arm-side elastic member 75 and is urged in a direction in which the reaping clutch 48 is operated to be disconnected.

  In the initial state, the reaping interlock mechanism 56 is configured such that the reaping operation pin 62 contacts the position detection switch 58 provided on the support plate 51 side on the rear side of the sector gear 52 and in the vicinity of the bracket 69. ing. At this time, the cutting clutch 48 is disengaged by the urging force of the arm-side elastic member 75 (see FIG. 9).

  When the sector gear 52 is rotated by the electric motor 53 from the initial state to reach the intermediate state, the cutting operation pin 62 comes into contact with the cutting side operation arm 67 (see FIGS. 8 and 9). At this time, since the connecting rod 71 has a small amount of movement in the front-rear direction and the connecting rod 71 does not operate sufficiently forward, the operating state of the urging force of the arm side elastic member 75 does not substantially change, so that the cutting clutch 48 is in the disengaged state. Is maintained.

  When the sector gear 52 is further rotated from the intermediate state, the cutting side operation arm 67 is rotated via the cutting operation pin 62. As a result, the sector gear 52 (the mowing interlock pin 62) is rotated to the position in the connected state, whereby the connecting rod 71 is greatly pulled forward. Thereby, the cutting side interlocking mechanism 56 is configured such that the tension arm 65 is pulled against the urging force of the arm side elastic member 75 and the cutting clutch 48 is connected.

  The cutting side interlocking mechanism 56 is covered with a cover body 73 formed in a U-shape extending in the front-rear direction. The cover body 73 is bolted to the rotating shaft 55 in a state where the cylindrical portion 66 is inserted, and a base member is provided via a bent portion 73a formed by bending the front and rear end sides of the cover body 73 into an L shape. It is bolted to the 51 side.

  The threshing interlocking mechanism 54 is connected to the threshing interlocking pin 61 and is provided on the opposite side of the sector gear 52 and the mowing side interlocking mechanism 56 with the base member 51 interposed therebetween, and the threshing interlocking mechanism 54 is the tension pulley side. A threshing-side operation wire 76 for linking to the elastic member 77, an elastic member 77 that is a tension spring attached to one end of the threshing-side operation wire 76, a tension arm 80 coupled to be suspended from the elastic member 77, and And a threshing clutch 38 formed of a tension pulley 85.

  Further, the tension arm 80 of the threshing clutch 38 is pulled to the lower side where the tension pulley 85 is cut and operated by its own weight.

  The threshing operation wire 76 is attached to the attachment portion 75 formed on the base member 51 at one end side, the outer wire 76A attached to the traveling machine body 3 side at the other end side, and the threshing operation pin 61 inserted through the outer wire 76A. And an inner wire 76B connecting the elastic member 77 (see FIG. 5 and the like).

  In the initial state, the threshing interlocking mechanism 54 is operated such that the threshing operation pin 61 located on the rear end side is disposed at the position on the rear end side of the restriction hole 50. The threshing clutch 38 is disengaged by its own weight.

  When the sector gear 52 is rotated forward from the initial state to the intermediate state by the electric motor 53, the threshing operation pin 61 is pulled forward, whereby the elastic member 77 is connected via the threshing operation wire 76. The tension arm connected to is pulled upward. Thereby, it is comprised so that the threshing clutch 38 may be connected (refer FIG.8 and FIG.9).

  Next, when the sector gear 52 is further rotated from the intermediate state to the connected state side, the tension arm 80 that has acted to rotate the threshing interlocking pin 61 to the initial state side by the fulcrum overaction. The direction of action of the tensile force from the threshing clutch 38 acting by its own weight is switched.

  In other words, when the end portion side of the inner wire 76B of the threshing operation wire 76 connected to the threshing interlocking pin 61 exceeds the rotation center of the sector gear 52, the tensile force from the threshing clutch 38 side causes the threshing interlocking pin 61 to be in the initial state. The direction acting from the direction of turning to the connected state to the direction of turning to the connected state is switched.

  When the sector gear 52 is turned from the intermediate state to the connected state, the threshing interlocking pin 61 is turned downward, so that the amount of push-pull operation in the front-rear direction of the threshing operation wire 76 is small, and the threshing operation is performed. Since the pulling operation amount of the wire 76 is maintained substantially constant, the connected state of the threshing clutch 38 is maintained.

  As described above, the threshing clutch 38 is disconnected (OFF) in the initial state, connected (ON) in the intermediate state, and maintained in the connected state (ON).

  The potentiometer 57 is mounted and fixed by bolts to an angle-shaped mounting portion 78 formed on the cutting gear interlocking mechanism side 56 of the base member 51 on the upper side of the sector gear 52, and extends downward. The control unit can detect the rotational position of the sector gear 52 by bringing the detection arm 79 into contact with the cutting operation pin 62.

  Specifically, the detection arm 79 is configured to come into contact with the cutting operation pin 62 from the front side, and the controller detects which position the sector gear 52 is operated between the connected state and the intermediate state. (See FIGS. 7 and 8). In other words, the detection arm 79 releases the contact between the detection arm 79 and the cutting operation pin 62 when the cutting operation pin 62 is operated from the intermediate state to the initial state (see FIG. 9).

  The position detection switch 58 is disposed on the side of the base member 51 where the sector gear 52 is disposed and on the rear side of the sector gear 52, and when the sector gear 52 is rotated to the initial position, The operation pin 62 is configured to contact the position detection switch 58 to be turned on.

  That is, when the position detection switch 58 is in the ON state, it is detected that the sector gear 52 is operating in the initial state, and the potentiometer 57 causes the sector gear 52 to switch between the intermediate state and the connected state. It is detected that an operation has been performed at that position.

  According to this configuration, since not only the potentiometer 57 but also the position detection switch 58 is used for detecting the rotational position of the reaping operation pin 62, the rotational position detection range by the potentiometer 57 can be narrowed. A highly accurate potentiometer 57 can be used.

  According to the above-described clutch switching device, the sector gear 52, the electric motor 53, the cutting side interlocking mechanism 56, the potentiometer 57, and the position detection switch 58 are centrally arranged on one side of the plate-like base member 51. A threshing side interlocking mechanism 54 that is wire-operated is disposed on the opposite surface of the base member 51. Therefore, the installation space of the threshing-side interlocking mechanism 54 having a large operation amount operated by the turning operation of the sector gear 52 can be easily secured, and the reaping-side interlocking mechanism 56 and the threshing-side interlocking mechanism 54 are used for the base member 51. Since they are arranged on the opposite side with respect to each other, the mutual interlocking mechanisms hardly interfere, and the intermittent operation of the threshing clutch 38 and the reaping clutch 48 by the clutch operating device is stabilized.

  Next, based on FIGS. 10 to 13, different points of the clutch operating device from the above example will be described. FIGS. 10A and 10B are perspective views showing a main part of a cover body according to another embodiment, and FIGS. 11A and 11B show a clutch operating device according to another embodiment. 12A and 12B are a front view and a left side view showing the clutch operating device, and FIGS. 13A and 13B show the cover body. It is the front view and left view which showed the clutch operation apparatus which abbreviate | omitted.

  From the figure, the clutch operating device is linked to the threshing clutch 38 via the plate-like base member 51 supported on the traveling machine body 3 side, the sector gear 81 provided on the base member 51, the electric motor 53, and the sector gear 81. The threshing-side interlocking mechanism 54, the cutting-side interlocking mechanism 82 interlocking with the harvesting clutch 48 via the sector gear 81, the potentiometer 57 for detecting the rotational position of the sector gear 81, and the sector gear 81 being rotated to a predetermined position. And a position detection switch 58 for detecting.

  The sector gear 81 is formed with a cylindrical rotation shaft portion 83 that rotates integrally with the sector gear 81 and a cam portion 84 provided on the rotation shaft portion 83, and the sector gear 83 is formed by the electric motor 53. The cutting-side interlocking mechanism 82 is operated via the cam portion 84 by being rotationally driven.

  The reaping side interlocking mechanism 82 includes a turning operation portion that rotates according to the turning of the cam portion 54 of the sector gear 81 and a reaping side wire 87 that is connected to the reaping clutch 48 side. The rotation operation unit is a circuit in which a cutting-side wire 87 is connected via a fulcrum part 88 serving as a rotation fulcrum and a protrusion 90 provided on the rear side extending from the fulcrum part 88 in the front-rear direction. A moving portion 89 and a roller extending in a cylindrical shape from the front side of the rotating portion 89 toward the sector gear 81 side, and a contact portion 91 that contacts the cam portion 84 are provided.

  The cam portion 84 is formed with a fan-shaped protrusion 84a from the rotating shaft, and in the connected state, the arc-shaped concave portion 84b formed at the end of the fan shape and the contact portion 91 are fitted. In this manner, they are in contact (see FIG. 13).

  Further, as shown in FIGS. 10 and 11, the rotation operation unit is attached to the outer surface side of the cover body 73 that covers the sector gear 81. The cover body 73 is provided with an insertion hole 73b which is a vertically long hole through which the contact portion 91 is inserted. The insertion hole 73b defines the maximum rotation width of the rotation portion 89. Has been.

  The cutting wire 87 is attached to an attachment portion 93 formed on an L-shaped angle member 92 that is bolted to the base member 51 at one end side, and an outer wire 87A that is attached to the traveling machine body 3 at the other end side; The inner wire 76B is inserted into the outer wire 87A and connects the threshing operation pin 61 and the threshing clutch 38 side (see FIG. 11 and the like).

  Incidentally, in the reaping side interlocking mechanism 82 having the above-described configuration, when the reaping wire 87 is pulled forward, the reaping clutch 48 is disconnected and the reaping wire 87 is loosened and operated backward. When this is done, the reaping clutch 48 is configured to be connected.

  That is, as shown in FIG. 13, when the contact portion 91 is in contact with the recess 84b, the cutting wire 48 is loosened, so that the cutting clutch 48 is connected. Yes. Further, when the sector gear 81 is rotated from the connected state to the intermediate state side, the contact portion 91 is lifted from the concave portion 84b to the protruding portion 84a side, and the rotation direction of the sector gear 81 is centered on the fulcrum portion 88. It is rotated in the reverse direction. As a result, the cutting wire 87 is pulled forward. Therefore, except for the connection state in which the contact portion is fitted in the recess 84b of the cam portion 84, the reaping clutch 48 is configured to be disconnected.

DESCRIPTION OF SYMBOLS 3 Traveling machine body 4 Pre-processing part 10 Threshing apparatus 38 Threshing clutch 48 Mowing clutch 51 Base member 52 Sector gear (rotating operation body)
53 Electric motor (actuator)
54 Threshing side interlocking mechanism 56 Mowing side interlocking mechanism 57 Potentiometer 58 Position detection switch

Claims (5)

  A mowing clutch (48) for intermittently transmitting power transmission to a pretreatment unit (4) connected to the front part of the traveling machine body (3), and a threshing device (10) installed on the traveling machine body (3) side to perform a threshing process. ), A threshing clutch (38) for intermittently transmitting power to the rotator, a rotating operation body (52) driven to rotate by an actuator (53), and a cutting clutch (48) by the rotation of the rotating operation body (52). And a threshing clutch by turning the turning operation body (52) and a cutting-side interlocking mechanism (56) mechanically interlocking the turning operation body (52) and the cutting clutch (48) so that the turning operation body (52) is operated intermittently. In a combine provided with a threshing side interlocking mechanism (54) that mechanically interlocks the rotational operation body (52) and the threshing clutch (38) so that (38) is intermittently operated, the rotational operation body ( 52) The mowing side interlocking machine on one side across With placing (56) and arranged threshing side interlocking mechanism (54) on the other side combined.   A base member (51) that rotatably supports the rotating operation body (52) is provided, and a cutting side interlocking mechanism (56) is disposed on one side of the base member (51), and a threshing side interlocking is provided on the other side. The combine according to claim 1, wherein a mechanism (54) is arranged.   A mowing side linkage mechanism (56), a rotating operation body (52), and an actuator (53) are provided on one side of the base member (51), and a threshing side linkage is provided on the other side of the base member (51). The combine according to claim 2 provided with a mechanism (54).   The potentiometer (57) for detecting the rotation position of the rotation operation body (52), and the position detection switch (58) for detecting that the rotation operation body (52) has been rotated to a predetermined position, The combine according to claim 3, wherein the combine is installed directly or via a support member on the side of the member (51) where the cutting side linkage mechanism (56) is arranged.   The threshing side interlocking mechanism (54) is a linkage mechanism including a wire or a rod that mechanically connects the rotating operation body (52) and the threshing clutch (38), and is attached from the threshing clutch (38) side. Claim that the linkage mechanism is connected to the turning operation body (52) so that the state where the force acts on one side of the turning direction of the turning operation body and the state where the force acts on the other side are switched by the action beyond the fulcrum. Item 5. A combine according to any one of Items 2 to 4.

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