JP6516038B2 - Combine - Google Patents

Description

  The present invention relates to a combine.

  In the conventional combine, there is known a technique in which a throttle lever for increasing and decreasing the number of revolutions of the engine according to the load amount and a clutch lever for connecting and disconnecting the reaper clutch and the threshing clutch are provided on the side panel of the control unit. (See Patent Document 1)

JP, 2008-199909, A

  However, in the technique of Patent Document 1, since the throttle lever and the clutch lever are not linked, when the reaper clutch and the threshing clutch are connected when the engine is rotating at high speed, the components forming the threshing clutch etc. There was a problem that the component parts were damaged prematurely.

  Therefore, the main object of the present invention is to provide a combine that links the clutch lever and the throttle lever to increase / decrease the output rotational speed of the engine from low speed to rated rotational speed after connection of the cutting / threshing clutch by the clutch lever. It is in.

  The present invention which solved the above-mentioned subject is as follows.

  That is, according to the present invention, a throttle lever (17) for increasing or decreasing the output rotational speed of the engine (E) is provided at the front of the side panel (12) provided on the left side of the control unit (5) On the rear side of (17), a clutch lever (18) for connecting and disconnecting a reaping clutch for transmitting the output rotation of the engine (E) to the reaper (3) and a threshing clutch for transmitting to the threshing device (4) In the provided combine, an angle detector (25) for detecting the inclination attitude of the throttle lever (17) is provided, and a detection value by the angle detector (25) is input to a controller provided in the steering unit (5) The controller is configured to increase / decrease the output rotational speed of the engine (E) by the controller, and when the throttle lever (17) When the force rotational speed becomes low and the throttle lever (17) is inclined backward, the output rotational speed of the engine (E) becomes high, and the throttle lever (17) is inclined upward and lean upward The output rotational speed of the engine (E) is set to the rated rotational speed when it is in the middle posture, and the reaper clutch and the threshing clutch are connected when the clutch lever (18) is in the upward forward inclined posture. 18) the rear end of the linkage member (32) extending toward the throttle lever (17) is attached to the clutch lever (18), in which the reaper clutch and the threshing clutch are disconnected when the back-up inclined posture is established; A first support shaft (34) extending in the left-right direction is provided at the front of the link member (32), and is rotatably supported by the first support shaft (34) A cam (35) is provided, and when the clutch lever (18) is changed from a backward upward inclined posture to a forward upward inclined posture, the cam (35) extends laterally from the lower portion of the throttle lever (17) The throttle lever (17) is moved forward while in contact with the pin (28) to change its posture from a front upward tilt posture to an intermediate posture between the front upward tilt posture and the rear upward tilt posture. Combine.

  According to the present invention, after the reaper clutch and the threshing clutch are connected by the clutch lever (18), the output rotational speed of the engine (E) is increased from the low speed to the rated rotational speed to easily start the reap threshing operation The durability of the components can be improved by preventing rapid load from being applied to the components forming the reaper clutch and the threshing clutch.

It is a left view of a combine. It is a right side 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 top view of a control part. It is a left view of a control part. It is a right view explaining a clutch lever and a throttle lever. It is a top view explaining a clutch lever and a throttle lever. FIG. 13 is an explanatory view of a linked state of the cam and the pin in the rearward upward inclined posture when the clutch lever is changed from the backward upward inclination posture to the forward upward inclined posture. An explanatory view of the link state of the cam and the pin in the middle position on the rear side between the rear rising inclination posture and the front rising inclination posture when the clutch lever is changed from the rear rising inclination posture to the front rising inclination posture It is. When changing the clutch lever from a rear upslope to a front upslope, the illustration of the link between the cam and pin in the middle position on the front side between the rear upslope and the front upslope is there. FIG. 10 is an explanatory view of a linked state of a cam and a pin in a case where the clutch lever is in the front upward inclined posture when the clutch lever is changed from the rear upward inclination posture to the front upward inclination posture. FIG. 7 is an explanatory view of a linked state of the cam and the pin in the front upward inclined posture when the clutch lever is changed from the front upward inclination posture to the rear upward inclination posture. When the clutch lever is changed from a front upward tilt posture to a back upward tilt posture, the clutch lever is an explanatory view of the linked state of the cam and the pin in the front middle intermediate posture between the front upward tilt posture and the rear upward tilt posture. is there. An explanatory view of the link state of the cam and the pin in the middle position on the rear side between the front rising inclination posture and the rear rising inclination posture when the clutch lever is changed from the front rising inclination posture to the rear rising inclination posture It is. FIG. 13 is an explanatory view of a linked state of the cam and the pin in the backward lean posture in which the clutch lever is in the backward lean posture when the clutch lever is changed from the forward upward tilt posture to the backward lean posture.

  Hereinafter, the present invention will be described with reference to the drawings. In order to facilitate understanding, the directions will be described as viewed from the operator's side, with the front side as the front, the rear side as the rear, the right hand side as the right side, and the left hand side as the left side.

  As shown in FIGS. 1 to 5, the combine is provided with a traveling device 2 consisting of a pair of left and right crawlers traveling on the soil surface below the body frame 1, and harvests cereals in the field on the front side of the body frame 1. A reaper 3 is provided. In addition, a threshing device 4 for threshing / sorting the grain harvested by the harvesting device 3 is provided at the rear left side of the harvesting device 3, and the control unit 5 where the operator boarding the rear right side of the harvesting device 3 Is provided.

  An engine room 6 is provided below the pilot seat 10 of the control unit 5 to accommodate the engine E, and a grain tank 7 is provided behind the control unit 5 for storing grains threshed and sorted by the threshing device 4 The grains stored in the gren tank 7 are discharged to the outside by a discharge auger 8 connected to the rear lower portion of the gren tank 7. The discharge auger 8 is formed of a vertical auger 8A extending in the vertical direction on the rear side of the gren tank 7 and a horizontal auger 8B extending in the front and rear direction on the upper side of the threshing device 4.

  As shown in FIG. 6, in the control unit 5, a front panel 11 is formed on the front side of the operator's seat 10 on which the operator sits, and a side panel 12 is formed on the left side of the operator's seat 10. The front panel 11 is provided with a monitor or the like for displaying the traveling speed and the like of the traveling device 2. At the front of the side panel 12, a main shift lever 15 for increasing and decreasing the traveling speed of the traveling device 2 and a throttle lever 17 for accelerating and decelerating the output rotational speed of the engine E are provided on the left side of the main shift lever 15. At the rear of the side panel 12, the auxiliary transmission lever 16 for switching the transmission gear of the traveling device 2 to a portion located substantially on the rear side of the main transmission lever 15, the reaping device 3 and threshing at the left side of the auxiliary transmission lever 16 A clutch lever 18 for driving the device 4 is provided.

  As shown in FIG. 7, below the side panel 12, a frame 20 extending in the front-rear direction at a predetermined interval is provided. The frame 20 is supported by a frame 21 or the like extending upward from the airframe 1. Further, the front portion of the side panel 12 and the front end portion of the frame 20 are connected via the stay 40, and the front middle portion of the side panel 12 and the front middle portion of the frame 20 are connected via the stay 41. The rear middle portion and the rear middle portion of the frame 20 are connected via a stay 42, and the rear end of the side panel 12 and the rear end of the frame 20 are connected via a stay 43.

  A support member 22 rotatably supporting the throttle lever 17 is provided at the front of the frame 20. The support member 22 is formed of a bottom plate 22A fixed to the upper surface of the frame 20, and a right plate 22B extending upward from the right end of the bottom plate 22A.

  An angle detector 25 such as a potentiometer for detecting the tilt attitude of the throttle lever 17 is provided on the lower front side of the right plate 22B, and a middle portion in the vertical direction of the throttle lever 17 is provided on the upper rear side of the right plate 22B. Is provided with a laterally extending support shaft 26 rotatably supporting the The detected value of the angle detector 25 is input to a controller provided in the steering unit 5, and the controller accelerates / decelerates the output rotational speed of the engine E according to the input detected value. The angle detector 25 is detachably mounted on the right plate 22B from the right side. Thereby, the angle detector 25 can be easily replaced from the operation seat 10 side.

  The throttle lever 17 has an upper portion extending upward from the middle portion and a lower side portion extending downward from the middle portion formed in a substantially inverted shape. In addition, a connection arm 27 extending from the rotation shaft 25A to the lower end of the lower side portion is fixed to the rotation shaft 25A of the angle detector 25. The connecting arm 27 is formed of a tip 27B extending from the base 27A supported by the rotation shaft 25A to the lower end of the lower side, and the tip 27B is radially spaced by a predetermined interval in the rotational direction. It is formed of two extending arms. Further, a laterally extending pin 28 provided at the lower end of the lower side portion is loosely fitted to the fitting portion formed on the two arms of the distal end portion 27B. As a result, the throttle lever 17 is changed from a front upward tilt posture to a rear upward tilt posture to accelerate the output rotational speed of the engine E, and the throttle lever 17 is changed from a rear upward tilt posture to a front upward tilt posture The output rotational speed of the engine E can be reduced. When the throttle lever 17 is in the most forwardly inclined state, the engine E is in an idling state, and the output rotational speed of the engine E is at the lowest speed. When the attitude of the engine E is changed, the output rotational speed of the engine E becomes the rated rotational speed.

  The clutch lever 18 is formed of an upper portion with a narrow width in the front-rear direction for fixing the handle 19 and a lower side with a wide width in the front-rear direction. The lower portion of the lower portion of the clutch lever 18 is rotatably supported by a support shaft (“second support shaft” in the claims) 30 extending in the left and right direction at the rear of the frame 20. A support shaft (a third support shaft in the claims) 31 extending in the left-right direction is provided at an upper portion of the support member 31.

In a portion of the support shaft 31 extending from the lower side of the clutch lever 18 to the right, the rear portion of the linking member 32 extending in the front-rear direction for operating the inclination attitude of the throttle lever 17 according to the inclination attitude of the clutch lever 18 Is rotatably supported. Further, at a portion extending from the lower side of the clutch lever 18 of the support shaft 31 to the left side, in accordance with the inclination posture of the clutch lever 18, the tension arm 38 is operated to move forward or backward and inclined downward. The upper portion of the linking member 33 is rotatably supported.

  The front portion of the linking member 32 is inserted through the opening formed in the stay 41, and the middle portion of the linking member 32 is inserted through the opening formed in the stay 42. Thus, the linking member 32 can be smoothly moved in the front-rear direction in accordance with the inclination attitude of the clutch lever 18.

  As shown in FIG. 16, a support shaft (“first support shaft” in the claims) 34 is provided at the front of the link member 32 so as to extend in the left-right direction. The rear upper portion of the cam 35 is rotatably supported on the support shaft 34, and a pin 36 extending in the left direction is provided on the front upper portion of the cam 35.

  The upper portion of the cam 35 is horizontally formed in the front-rear direction substantially parallel to the frame 20, and the front portion of the cam 35 is formed to be downwardly inclined from the front end of the upper portion. The rear side of the cam 35 is formed to be inclined rearward from the rear end of the lower side. The support shaft 34 and the pin 36 are provided with biasing means (not shown) such as a torque spring which biases the cam 35 clockwise about the support shaft 34. Thus, the output rotational speed of the engine E can be changed by changing the inclination attitude of the throttle lever 17 in cooperation with the inclination attitude of the clutch lever 18.

  Next, the link state of the cam 35 rotatably supported at the front of the link member 32 and the pin 28 of the throttle lever 17 in the case where the clutch lever 18 is changed from a backward lean attitude to an upward lean attitude will be described. .

  As shown in FIG. 10, when the clutch lever 18 is in the backward lean position, the throttle lever 17 is in the forward upward lean position and extends leftward from the lower side of the cam 35 and the connecting arm 27 in the pin 28. The portions are spaced apart in the front-rear direction at predetermined intervals. When the clutch lever 18 is in the upward inclined position, the connection of the reaper clutch provided in the transmission path between the engine E and the reaper 3 is cut off, and the rotation of the engine E is not transmitted to the reaper 3. The connection of the threshing clutch provided in the transmission path between the threshing device 4 and the threshing device 4 is cut off, and the rotation of the engine E is not transmitted to the threshing device 4. Further, the engine E is in an idling state, and the output rotational speed of the engine E is at the lowest speed.

  As shown in FIG. 11, when the clutch lever 18 is in the middle position on the rear side between the rear rising inclination posture and the front rising inclination posture (hereinafter referred to as "first intermediate posture"), the throttle lever The lower side of the cam 35 contacts the rear of the portion of the pin 28 which extends to the left from the connecting arm 27. When the clutch lever 18 is in the first intermediate posture, the reaper clutch is connected, the rotation of the engine E is transmitted to the reaper 3, the threshing clutch is connected, and the rotation of the engine E is transmitted to the threshing device 4. Further, the engine E is in an idling state, and the output rotational speed of the engine E is at the lowest speed.

  As shown in FIG. 12, when the clutch lever 18 is in the front middle position between the first middle position and the front rising inclination position (hereinafter referred to as "the second middle position"), the throttle lever 17 is in the middle posture, and the pin 28 is moved to the upper front while the lower side of the cam 35 abuts on the portion of the pin 28 which extends leftward from the connecting arm 27. When the clutch lever 18 is in the second intermediate posture, the reaper clutch is connected, the rotation of the engine E is transmitted to the reaper 3, the threshing clutch is connected, and the rotation of the engine E is transmitted to the threshing device 4. Further, the output rotational speed of the engine E is at the rated rotational speed.

  As shown in FIG. 13, when the clutch lever 18 is in the forward upward inclined posture, the throttle lever 17 is in the middle posture, and the portion of the front side of the cam 35 and the pin 28 extending leftward from the connecting arm 27 is It is separated by a predetermined interval in the front-rear direction. When the clutch lever 18 is in the forward upward inclined posture, the reaper clutch is connected, the rotation of the engine E is transmitted to the reaper 3, the threshing clutch is connected, and the rotation of the engine E is transmitted to the threshing device 4. Further, the output rotational speed of the engine E is at the rated rotational speed.

  Next, the link state of the cam 35 rotatably supported at the front of the link member 32 and the pin 28 of the throttle lever 17 in the case where the clutch lever 18 is changed from the front upward tilt posture to the back upward tilt posture will be described. . Note that, in this case, the throttle lever 17 is manually changed to the front-rising inclination posture.

  As shown in FIG. 14, when the clutch lever 18 is in the front upward inclined posture, the throttle lever 17 is in the front upward inclination posture, and a portion of the front side portion of the cam 35 and the pin 28 extends leftward from the connecting arm 27. Are spaced apart from each other by a predetermined distance in the front-rear direction. When the clutch lever 18 is in the forward upward inclined posture, the reaper clutch is connected, the rotation of the engine E is transmitted to the reaper 3, the threshing clutch is connected, and the rotation of the engine E is transmitted to the threshing device 4. Further, the engine E is in an idling state, and the output rotational speed of the engine E is at the lowest speed.

  As shown in FIG. 15, when the clutch lever 18 is in the second middle posture, the throttle lever 17 is in the front upward inclined posture, and the front side portion of the cam 35 extends leftward from the connecting arm 27 in the pin 28 Contact the front of the site. When the clutch lever 18 is in the second intermediate posture, the reaper clutch is connected, the rotation of the engine E is transmitted to the reaper 3, the threshing clutch is connected, and the rotation of the engine E is transmitted to the threshing device 4. Further, the engine E is in an idling state, and the output rotational speed of the engine E is at the lowest speed.

  As shown in FIG. 16, when the clutch lever 18 is in the first intermediate posture, the throttle lever 17 is in the front upward inclined posture, and the cam 35 rotates counterclockwise about the support shaft 34 to move the cam 35. The upper side portion of the pin 28 moves rearward while in contact with the lower portion of the portion of the pin 28 extending leftward from the connecting arm 27. When the clutch lever 18 is in the first intermediate posture, the reaper clutch is connected, the rotation of the engine E is transmitted to the reaper 3, the threshing clutch is connected, and the rotation of the engine E is transmitted to the threshing device 4. Further, the engine E is in an idling state, and the output rotational speed of the engine E is at the lowest speed.

  As shown in FIG. 17, when the clutch lever 18 is in the backward lean position, the throttle lever 17 is in the forward upward lean position and extends leftward from the lower side of the cam 35 and the connecting arm 27 in the pin 28. The portions are spaced apart in the front-rear direction at predetermined intervals. When the clutch lever 18 is in the upward lean position, the connection of the reaper clutch is cut off and the rotation of the engine E is not transmitted to the reaper 3 and the connection of the threshing clutch is cut off and the rotation of the engine E is transmitted to the threshing device 4 It has not been. Further, the engine E is in an idling state, and the output rotational speed of the engine E is at the lowest speed.

  Next, the threshing clutch provided in the transmission path between the engine E and the threshing device 4 and the reaper clutch provided in the transmission path between the engine E and the reaper 3 will be described.

  As shown in FIG. 8, the upper portion of the tension arm 38 is connected to the lower portion of the connecting member 33 via a connecting member 37 consisting of a rod and a spring. The tension arm 38 functions as a threshing clutch that switches the tension of the belt 39 wound around the upstream pulley and the downstream pulley provided in the transmission path between the engine E and the threshing device 4. Thereby, when the clutch lever 18 is in the upward and backward inclined posture, the linking member 33 moves upward to retract the tension arm 38 to the lower side of the belt 39, and the tension of the belt 39 is relaxed to rotate the engine E. The power is not transmitted to the threshing device 4. On the other hand, when the clutch lever 18 is changed from a backward upward inclined attitude to a forward upward inclined attitude, the linking member 33 moves downward to advance the tension arm 38 upward of the belt 39 and the tension of the belt 39 And the rotation of the engine E is transmitted to the threshing device 4.

  In the vicinity of the support shaft 30 provided on the frame 20, an angle detector (not shown) such as a potentiometer for detecting the inclination attitude of the clutch lever 18 is provided. The detection value of the angle detector is input to a controller provided in the control unit 5, and the controller rotates a motor (not shown) according to the input detection value to transmit the transmission path between the engine E and the reaper 3 Connect and shut off the reaper clutch provided on the As a result, when the clutch lever 18 is in the upward lean position, the motor is rotated in one direction to interrupt the connection of the reaper clutch so that the rotation of the engine E is not transmitted to the reaper 3. On the other hand, when the clutch lever 18 is changed from a rear upslope to a front upslope, the motor is rotated in the reverse direction to connect the reaper clutch, and the rotation of the engine E is transmitted to the reaper 3.

  As shown in FIG. 9, a bracket 46 is fixed to the front right surface of the support shaft 30 in the frame 20 to support a switch 45 that detects the inclination of the clutch lever 18 and restricts the start of the engine E. When the support shaft 31 of the clutch lever 18 is separated from the switch 45, the output value of the switch 45 is OFF, and when the support shaft 31 of the clutch lever 18 is in contact with the switch 45, the output of the switch 45 is output. The value is ON. When the output value of the switch 45 is OFF, regardless of the inclination attitude of the throttle lever 17, the engine E is idling to maintain the output rotational speed of the engine E at the minimum speed. On the other hand, when the output value of the switch 45 is ON, the throttle lever 17 can be operated to increase or decrease the output rotational speed of the engine E. The output value of the switch 45 is input to a controller provided in the control unit 5, and the controller regulates the output rotational speed of the engine E according to the input output value.

  When the clutch lever 18 changes from a rearward upward inclination posture to a first intermediate posture, the rotation of the engine E is transmitted to the reaper 3 and the threshing device 4. Further, when the clutch lever 18 is changed from the first middle posture to the second middle posture, the support shaft 31 of the clutch lever 18 contacts the switch 45, and the output value of the switch 45 is turned on.

  When the clutch lever 18 is changed from the second middle position to the front rising inclination position, the lower part of the cam 35 moves the pin 28 of the throttle lever 17 to the upper front side to change the throttle lever 17 to the middle position. The output rotational speed of the engine E becomes the rated rotational speed. Further, when the clutch lever 18 is changed to the front side with respect to the front upward inclination, the support shaft 31 of the clutch lever 18 contacts the rear of the bracket 46 to restrict the change of the posture of the clutch lever 18. As a result, it is possible to use the belt 39 etc. for a long period of time while suppressing the rapid fluctuation of tension generated in the belt 39 etc. forming the threshing clutch.

  The link member 32 is disposed on the right side of the lever 18 at a predetermined distance, and the link member 33 is disposed on the left side of the clutch lever 18 at a predetermined distance. As a result, the cutting lever 18 can be operated smoothly without the cutting lever 18 coming into contact with the linking member 32 and the linking member 33. The switch 45 is detachably mounted on the bracket 46 from the right side. Thus, the switch 45 can be easily replaced from the operation seat 10 side.

Reference Signs List 3 reaper 4 threshing device 5 control unit 12 side panel 17 throttle lever 18 clutch lever 25 angle detector 28 pin 32 linkage member 34 support shaft (first support shaft)
E engine

Claims (1)

A throttle lever (17) for increasing / decreasing the output rotational speed of the engine (E) is provided at the front of the side panel (12) provided on the left side of the control unit (5), and the rear side of the throttle lever (17) A combine clutch provided with a clutch lever (18) for connecting and disconnecting a harvest clutch for transmitting the output rotation of the engine (E) to the harvester (3) and a threshing clutch for transmitting to the threshing device (4) An angle detector (25) for detecting the inclination attitude of the throttle lever (17) is provided, and a detection value by the angle detector (25) is input to a controller provided in the steering unit (5), and the controller controls the engine The output rotational speed of (E) is increased or decreased, and the output rotational speed of the engine (E) becomes low when the throttle lever (17) is in the forward upward inclined posture. When the throttle lever (17) is inclined backward, the output rotational speed of the engine (E) becomes high, and the throttle lever (17) is at an intermediate position between the upward inclination and the upward inclination. Then, the output rotational speed of the engine (E) is set to the rated rotational speed, and when the clutch lever (18) is inclined upward to the front, the reaper clutch and the threshing clutch are connected and the clutch lever (18) is inclined backward. In the posture, the reaper clutch and the threshing clutch are disconnected, and the rear portion of the link member (32) extending toward the throttle lever (17) is attached to the clutch lever (18), and the link member (32) A first support shaft (34) extending in the left and right direction at the front of the housing, and a cam (35) rotatably supported by the first support shaft (34) When the clutch lever (18) is changed from a backward upward inclined attitude to a forward upward inclined attitude, the cam (35) contacts a pin (28) extending in the left and right direction from the lower portion of the throttle lever (17). In combination, the throttle lever (17) is moved forward to change its posture from a front upward tilt posture to an intermediate posture between the front upward tilt posture and the rear upward tilt posture.

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