JP2008099593A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To protect the actuator of a threshing clutch from a rotator and to effectively make good use of a space between a right and a left supporting members. <P>SOLUTION: In the combine harvester 1 with which an engine 21 and a pair of the right and the left supporting members 60R and 60L for supporting the rotary fulcrum parts of a reaping part 4 are installed side by side in the right and left directions on a machine body frame 2 and a belt tension type threshing clutch 55 for connecting and disconnecting power transmission from the engine 21 to a threshing part 5 is arranged between the engine 21 and the supporting member 60R at the engine 21 side, a hydraulic cylinder 77 as an actuator for engagement/disengagement operation of the threshing clutch 55 and a battery 90 are disposed side by side between the right and the left supporting members 60R and 60L and the hydraulic cylinder 77 is attached to the supporting member 60R at the engine 21 side. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  According to the present invention, an engine and a pair of left and right support members that support a rotation fulcrum portion of a cutting part are juxtaposed in the left and right direction on the fuselage frame, and the engine and the engine side support member are separated from the engine. The present invention relates to a combine in which a belt tension type threshing clutch for connecting and disconnecting power transmission to a threshing unit is provided.

BACKGROUND ART Conventionally, a combine that connects and disconnects power transmission from an engine to a threshing portion with a threshing clutch is known (for example, see Patent Document 1). As the threshing clutch, a belt tension type clutch is used, and tension that winds the drive pulley on the output shaft of the engine and the driven pulley on the threshing input shaft by the tension roller according to the on / off operation by the actuator. The belt is configured such that power can be transmitted by pressing and tensioning the belt, and power transmission can be interrupted by releasing and relaxing the belt. And this threshing clutch was arrange | positioned at the back of the engine arranged in parallel with the left-right direction at the front part of the body frame, and the left-right paired support member which supports the rotation fulcrum part of a cutting part.
JP 2005-124415 A

  In the conventional combine, since the actuator of the threshing clutch is disposed at a position close to the rotating body such as a pulley and a belt, there is a possibility that the rotating body comes into contact with the rotating body and breaks. Further, only a battery is disposed between the left and right support members, and there is room for other members to be disposed. Therefore, an object of the present invention is to protect the actuator of the threshing clutch from the rotating body and effectively utilize the space between the left and right support members.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

  That is, according to the first aspect, the engine frame and a pair of left and right support members that support the rotation fulcrum portion of the mowing portion are juxtaposed in the left-right direction, and between the engine and the engine-side support member. In a combine provided with a belt-tension type threshing clutch for connecting and disconnecting power transmission from the engine to the threshing unit, an actuator for performing on / off operation of the threshing clutch and a battery are arranged between the left and right support members. The actuator is disposed on a support member on the engine side.

  According to a second aspect of the present invention, a battery cover is disposed between the actuator and the battery so as to cover the battery from the side of the actuator and from above.

  According to a third aspect of the present invention, a cover that covers the hydraulic cylinder and the battery from the front and the upper side is disposed between the left and right support members.

  In Claim 4, the harness guide which guides the harness extended from the said battery is arrange | positioned ahead of the said threshing clutch and the support member by the side of an engine.

  As effects of the present invention, the following effects can be obtained.

  In the first aspect, the arrangement structure of the front part of the body frame can be made compact, and the space between the left and right support members can be effectively utilized. Moreover, it can isolate and protect so that an actuator may not interfere with an engine or a threshing clutch by the support member by the side of an engine.

  In Claim 2, between the said actuator and a battery is shielded, the improvement of the safety | security when oil leaks from the oil actuator side can be aimed at. Further, the contact portion of the battery can be protected, and a short circuit or the like can be prevented.

  According to the third aspect of the present invention, it is possible to prevent the waste, dust, water, and the like from entering the installation portion such as the actuator or the battery, thereby protecting them.

  According to the fourth aspect of the present invention, it is possible to separately fix the hydraulic hose and the harness when the actuator is a hydraulic type, and it is possible to prevent problems such as disconnection of the harness due to the vibration of the hydraulic hose. Moreover, the battery harness can be disposed in front of the threshing clutch and can be protected from a belt constituting a part of power transmission.

  Next, embodiments of the invention will be described.

  1 is a side view showing the overall structure of the combine, FIG. 2 is a plan view showing the overall structure of the combine, FIG. 3 is a view showing the structure of the power transmission mechanism of the combine, and FIG. 4 is a side view showing the structure of the front part of the fuselage frame. 5 is a side view showing the configuration of the threshing clutch installation portion, FIG. 6 is a plan view showing the configuration of the front portion of the body frame, FIG. 7 is a front view showing the configuration of the front portion of the body frame, and FIG. FIG. 9 is a side view showing the configuration of the lock mechanism of the cutting unit.

  First, the overall structure of a combine according to an embodiment of the present invention will be described.

  As shown in FIGS. 1 and 2, the combine 1 supports the machine frame 2 with a crawler type traveling device 3 and drives the crawler type traveling device 3 with an engine 21 mounted on the body frame 2 to move forward or It is configured to be able to travel backward. And in the combine 1, the cutting part 4 which cuts a grain cocoon in the front part of the body frame 2, and conveys it to a machine body back is provided, and the harvested grain mash from the cutting part 4 is threshed in the left front, back, and middle part of the body frame 2. A threshing unit 5 and a sorting unit 6 for sorting the grains threshed by the threshing unit 5 are arranged up and down. At the rear part of the machine body frame 2, a slaughter processing unit 7 is provided that discharges cereals threshed by the threshing unit 5 to the outside as waste.

  A grain tank 8 is provided at the right rear part of the machine body frame 2 to store grains conveyed from the sorting unit 6 by the milling cylinder, and the grains in the grain tank 8 are arranged from the rear to the upper side of the grain tank 8. A discharge auger 9 for discharging to the outside of the machine body is provided. The glen tank 8 is configured so that the front portion of the discharge auger 9 can be pivoted open to the side of the machine body with the vertical auger 9a as the center. In front of the Glen tank 8 and in the front right side of the fuselage frame 2, an operating device 15 including an operating device such as a steering handle 11 and various operating levers, a driver's seat 12, etc. is provided in the cabin 13. A transmission 19 and an engine 21 are disposed below the operation unit 15.

  Next, the configuration of the power transmission mechanism of the combine 1 will be described.

  As shown in FIG. 3, in the power transmission mechanism of the combine, the transmission 19 and the engine 21 are arranged in the front-rear direction on the front part of the body frame 2, and the drive pulley is provided on the output shaft of the engine 21. 25 and a driven pulley 26 provided on the input shaft of the transmission 19 are connected by a belt 27. Power is transmitted from the engine 21 to the transmission 19 by the pulleys 25 and 26 and the belt 27, so that the crawler traveling device 3 connected to the transmission 19 can be driven.

  A pulley 31 is provided on a cutting drive shaft protruding from the transmission 19 via a one-way clutch 29, and the pulley 31 and a cutting pulley 32 provided on a cutting input shaft are connected by a belt 33, and the fuselage Only when traveling forward, the power from the engine 21 can be transmitted from the pulleys 31 and 32 and the belt 33 to each device such as a pulling device, a cutting device, and a conveying device provided in the cutting unit 4. Each device of the cutting unit 4 is driven or stopped by an on / off operation of the cutting clutch 34, and is configured to synchronize the driving speed with the vehicle speed during driving.

  The output shaft of the engine 21 is provided with drive pulleys 35 and 41, and the discharge conveyor 38 provided in the Glen tank 8 from one drive pulley 35 through the power transmission mechanism 36 and linked to the discharge conveyor 38. Power from the engine 21 can be transmitted to the connected discharge auger 9. The discharge conveyor 38 and the discharge auger 9 are configured to be driven or stopped by an on / off operation of a discharge clutch 39 provided in the power transmission mechanism 36.

  The other driving pulley 41 and the driven pulley 42 on the threshing input shaft are connected by a belt 43, and the threshing unit 5, the sorting unit 6, and the cutting unit 4 are connected to the pulleys 41 and 42 and the belt 43 through a power transmission mechanism 44. Power can be transmitted to each device. For example, a threshing pulley 45 of the power transmission mechanism 44 and a pulley 46 of a handling cylinder 48 provided in the threshing unit 5 are connected by a belt 47, and the handling cylinder 48 is connected to the handling cylinder 48 from the engine 21 by these pulleys 45 and 46 and the belt 47. Power can be transmitted.

  Further, the power from the engine 21 can be transmitted from the sorting pulley 51 of the power transmission mechanism 44 to the transport conveyor such as the red pepper or the first conveyor provided in the sorting unit 6 via the power transmission mechanism 52. . The handling drum 48 of the threshing unit 5, the red pepper of the sorting unit 6, the conveying conveyor, and the like are configured to be driven or stopped by an on / off operation of a threshing clutch 55 provided on the belt 43.

  Further, a pulley 56 provided on the threshing input shaft together with the driven pulley 42 and a pulley 57 provided on the cutting input shaft together with the cutting pulley 32 are connected by a belt 58, and a cutting portion is also connected from these pulleys 56 57 and the belt 58. The power from the engine 21 can be separately transmitted to each of the four devices. Each device of the cutting unit 4 is driven or stopped regardless of the forward travel, reverse travel, or stop of the airframe by the on / off operation of the inflow clutch 59 provided on the belt 58, and the drive speed is constant during the drive. It is configured as follows.

  Next, the structure of the threshing clutch 55 that connects and disconnects the power transmission from the engine 21 to the threshing unit 5 by the power transmission mechanism of the combine 1 will be described.

  As shown in FIGS. 4 to 7, the threshing clutch 55 is disposed between the engine 21 and the support members 60 </ b> L and 60 </ b> R disposed on the left side of the engine 21 at the front of the machine body. The support members 60L and 60R are for supporting the rotation fulcrum portion of the cutting unit 4 at the upper part thereof, and are erected as a pair of left and right on the front part of the body frame 2 with a predetermined interval in the left and right direction. A cutting input case 61 that houses the cutting input shaft is provided between the upper end portions of the cutting input shaft 61 so as to be pivotally supported. The cutting frame 62 is connected to the cutting input case 61 as a pivot fulcrum. Thus, the entire cutting unit 4 can be moved up and down. Here, the support member 60L is formed in a frame shape by connecting square tubes in a trapezoidal shape, and the support member 60R is formed in a plate shape.

  The threshing clutch 55 is a belt tension clutch, and includes a belt 43 wound around a drive pulley 41 on the output of the engine 21 and a driven pulley 42 on the threshing input shaft, and a tension roller 71 for tensioning the belt 43. And a tension arm 72 that moves the tension roller 71 toward or away from the belt 43. The tension roller 71 is disposed below the belt 43 between the driving pulley 41 and the driven pulley 42, and is rotatably supported on the distal end side of the tension arm 72.

  The tension arm 72 is fixed to one end side of the fulcrum shaft 73 on the base end side and is rotatable about the fulcrum shaft 73 so that the tension roller 71 on the distal end side can be moved in the vertical direction. It is configured. The fulcrum shaft 73 penetrates the right support member 60R on the engine 21 side and extends in the left-right direction, and is rotatably supported by the right support member 60R via the bearing member 74 at the left and right central portions. Then, between the left and right support members 60L and 60R, the base end side of the rotating arm 75 is fixed to the other end of the fulcrum shaft 73, and the tip end side is pivotally connected to the hydraulic actuator via the link 76. Yes.

  The hydraulic actuator includes a hydraulic cylinder 77 as in the present embodiment, for example, and is disposed on the upper side of the right support member 60R between the left and right support members 60L and 60R, and is opposite to the left and right sides of the engine 21 and the threshing clutch 55. Is arranged. The hydraulic cylinder 77 is attached above the fulcrum shaft 73 of the tension arm 72 and the rotation arm 75 via an attachment stay 78, and the piston rod 77a can be vertically expanded and contracted. The threshing clutch 55 can be turned ON / OFF by connecting to the rotating arm 75, interlocking the rotating arm 75 during expansion / contraction driving, and rotating the coaxial tension arm 72.

  The hydraulic cylinder 77 is provided with an electromagnetic valve 79, and operating means such as a switch is electrically connected to the solenoid of the electromagnetic valve 79 via a control circuit. The operating means is disposed in the driving operation unit 15 and transmits a control signal to the solenoid in accordance with the operation, switches the electromagnetic valve 79, extends or contracts the piston rod 77a, and drives the hydraulic cylinder 77 to extend and contract. It is configured to be able to.

  Thus, when the operation means such as the threshing clutch lever is operated and the hydraulic cylinder 77 is driven to extend, the pivot arm 75 pivots downward about the fulcrum shaft 73, and the fulcrum shaft 73. The upper tension arm 72 rotates upward, and the tension roller 71 moves in a direction approaching the belt 43 to press it. The threshing clutch 55 is engaged so that the belt 43 obtains tension by the pressing of the tension roller 71, and the power is transmitted from the drive pulley 41 to the driven pulley 42.

  On the other hand, when the hydraulic cylinder 77 is driven to contract, the pivot arm 75 pivots upward about the fulcrum shaft 73, and the tension arm 72 on the fulcrum shaft 73 pivots downward. 71 moves away from the belt 43 to release the pressure. Since the belt 43 is relaxed without obtaining tension by the release of the tension roller 71, the threshing clutch 55 is turned off, and the transmission of power from the drive pulley 41 to the driven pulley 42 is cut off. In this manner, the threshing clutch 55 enables connection of power from the engine 21 to the threshing unit 5.

  Further, the threshing clutch 55 cannot control the switching of the electromagnetic valve 79 by operating means due to a failure of the electric system, etc., so that the hydraulic cylinder 77 as an actuator can be expanded and contracted, that is, the threshing clutch 55 cannot be turned on and off. In preparation for this, the solenoid valve 79 is manually switched to extend or contract the hydraulic cylinder 77 so that the threshing clutch 55 can be turned on and off.

  That is, as shown in FIGS. 4 to 7, a push pin 79a connected to one end of the spool of the electromagnetic valve 79 is provided so as to be exposed to the outside, and the electromagnetic valve 79 is manually operated by operating the push pin 79a. Can be switched. Instead of providing the push pin 79a, the spool may be extended to the outside. In order to manually operate the push pin 79a, a rod 81, an arm 82 pivotally connected to one end of the rod 81, a rod fixture 83 provided at the other end of the rod 81, etc. Is provided.

  The arm 82 is disposed below the electromagnetic valve 79, and the central portion of the arm 82 is rotatably supported by a fulcrum shaft 85 projecting from an attachment stay 78 fixed to the support member 60R. On the upper side of the arm 82 is provided a pressing portion 82a that opposes and presses the push pin 79a, and the lower side is pivotally connected to the rear end side of the rod 81. The rod 81 extends substantially horizontally in the front-rear direction, and the front end is inserted into the opening of a support stay 84 that is laterally disposed between the front ends of the left and right support members 60L and 60R. It is slidably supported in the front-rear direction.

  Thus, when the rod 81 is slid forward with respect to the support stay 84, the arm 82 is rotated about the fulcrum shaft 85 in the direction in which the pressing portion 82 a approaches the push pin 79 a, and the rod 81 is moved to the support stay 84. On the other hand, when slid backward, the arm 82 is rotated about the fulcrum shaft 85 in a direction away from the push pin 79a. Then, the rod 81 is fixed to the support stay 84 by screwing a wing nut as the rod fixing tool 83 into the thread groove formed on the front end side of the rod 81, and the sliding position, that is, the arm 82 of the arm 82 is fixed. The rotation position is configured to be held at any position.

  In such a configuration, when the solenoid valve 79 is switched using an operating means such as a threshing clutch lever, the rod 81 is fixed to the support stay 84 by the rod fixing tool 83 at a position slid rearward. The pressing portion 82a of the arm 82 is held at a position separated from the push pin 79a. Thus, the electromagnetic valve 79 is not switched by manual operation means during normal work.

  When the electromagnetic valve 79 cannot be switched electrically due to a failure of the electrical system, manual operation means is used, and the fixed state of the rod 81 by the rod fixing tool 83 is released, that is, the butterfly. The nut is loosened, the rod 81 is slid forward from the normal position, and the arm 82 is pivoted about the fulcrum shaft 85 in a direction approaching the push pin 79a, thereby causing the push pin 82a to push the push pin. 79a is pressed. Thus, the electromagnetic valve 79 is switched.

  Therefore, the on / off state of the threshing clutch 55 can be changed by driving the hydraulic cylinder 77 from the extension or contraction drive state before the operation of the manual operation means to the opposite state. That is, even when the switching of the electromagnetic valve 79 cannot be electrically controlled, the electromagnetic valve 79 is manually switched using manual operation means, and the hydraulic cylinder 77 is temporarily extended or contracted to drive the threshing clutch 55. It is possible to perform an on / off operation.

  Next, the arrangement structure in the front part of the body frame 2 will be described.

  As shown in FIGS. 4 to 7, the threshing clutch 55 is configured as described above, and is provided between the engine 21 and the right support member 60 </ b> R on the engine 21 side at the front of the body frame 2. A hydraulic cylinder 77 serving as an actuator for turning on and off the threshing clutch 55 is attached to the upper part on the left support member 60L side of the right support member 60R via an attachment stay 78, and the engine is sandwiched between the right support member 60R. 21 and the threshing clutch 55 are arranged between the left and right support members 60L and 60R so as to be opposite to the left and right sides.

  In other words, the right support member 60 </ b> R is disposed between the engine 21, the threshing clutch 55, and the hydraulic cylinder 77. In this way, from the rotating body such as the drive pulley 41 on the output shaft of the engine 21 disposed on the right side of the right support member 60R and the belt 43 of the threshing clutch 55, the hydraulic cylinder 77 disposed on the left side, Hydraulic hoses 87 and 88 that extend forward and downward from the hydraulic cylinder 77 are isolated.

  A hydraulic cylinder 77 and a battery 90 are provided side by side between the left and right support members 60L and 60R. That is, the hydraulic cylinder 77 is provided near the right support member 60R, and the battery 90 is provided near the left support member 60L. The battery 90 is arranged at a predetermined interval below the left side of the hydraulic cylinder 77 attached to the right support member 60R, and is arranged horizontally in the left and right direction under the left support member 60L, and is fixed on the body frame 2. Has been.

  In this manner, the engine frame 21 and the pair of left and right support members 60L and 60R that support the rotation fulcrum portion of the cutting unit 4 are juxtaposed in the left-right direction. Between the left and right support members 60L and 60R in the combine 1 in which a belt tension type threshing clutch 55 for connecting and disconnecting power transmission from the engine 21 to the threshing unit 5 is disposed between the left and right support members 60L and 60R. By arranging the hydraulic cylinder 77 as an actuator for performing the on / off operation of the battery and the battery 90 side by side and providing the hydraulic cylinder 77 on the support member 60R on the engine 21 side, the arrangement structure of the front part of the body frame 2 is compact. Thus, the space between the support members 60L and 60R can be effectively utilized. Further, the hydraulic cylinder 77 can be isolated and protected from the engine and the threshing clutch 55 by the support member 60R so as not to interfere.

  Between the hydraulic cylinder 77 and the battery 90, a battery cover 91 that covers the battery 90 from the side and the upper side of the hydraulic cylinder 77 is disposed. The battery cover 91 includes a plate-like vertical portion 91a and a horizontal portion 91b, and is configured in a substantially inverted L shape when viewed from the front. The vertical portion 91a is disposed on the right side of the battery 90 on the hydraulic cylinder 77 side, and the horizontal portion 91b. Is arranged above the battery 90, and is covered from these two directions on the hydraulic cylinder 77 side arranged at the upper right.

  The battery cover 91 is fixed between the left and right support members 60L and 60R on the lower end side of the vertical portion 91a and on the left front side and rear end side of the horizontal portion 91b. That is, the lower end side of the vertical portion 91a is bent horizontally and fixed to the fixed stay 92 on the body frame 2 between the hydraulic cylinder 77 and the battery 90, and the left front side of the horizontal portion 91b is fixed to the right support member 60R of the left frame 60L. It is fixed to a fixed stay 93 fixed to the upper side, and the rear end side of the horizontal portion 91b is fixed to a fixed stay 95 fixed to a connecting frame 94 that is horizontally disposed between the upper portions of the left and right support members 60L and 60R. By doing so, it is fixed as a whole cover.

  As described above, the battery cover 91 that covers the battery 90 from the side and the side of the hydraulic cylinder 77 is disposed between the hydraulic cylinder 77 and the battery 90, so that the space between the hydraulic cylinder 77 and the battery 90 is provided. By shielding, it is possible to improve safety when oil leaks from the hydraulic cylinder 77 side. Further, the contact portion of the battery 90 can be protected, and a short circuit or the like can be prevented. In this embodiment, the battery 90 is covered with the battery cover 91 between the left and right support members 60L and 60R only from the side of the hydraulic cylinder 77 and from the upper side. It can also be configured so as to cover from the front or rear by attaching.

  A cover 98 is provided between the left and right support members 60L and 60R to cover the hydraulic cylinder 77 and the battery 90 from the front and above. The cover 98 is made of a rubber plate and has a width that is slightly larger than the distance between the left and right support members 60L and 60R. The connecting frame 94 extends from the front lower side to the rear upper side along the front and upper shapes of the left and right support members 60L and 60R, and the rear end side is provided between the upper parts of the support members 60L and 60R. On the other hand, the front end side is disposed in the vicinity of the body frame 2 so as to cover the space between the support members 60L and 60R from the front and the top.

  As described above, the cover 98 that covers the hydraulic cylinder 77 and the battery 90 from the front and the upper side is disposed between the left and right support members 60L and 60R. These can be protected by preventing intrusion of dust, dust, water, and the like.

  A harness guide 99 that guides the harness 100 extending from the battery 90 is provided in front of the left support member 60 </ b> L and the threshing clutch 55 on the engine 21 side. The harness guide 99 is formed in a U shape when viewed from the side, and is arranged in the left-right direction so that the open side faces the front. The harness guide 99 passes through the front of the threshing clutch 55 from the front of the right support member 60R, and the output shaft It extends under the belt 27 wound around the upper drive pulley 25 and the driven pulley 26 on the input shaft of the transmission 19 to the vicinity of the front of the main body of the engine 21. The left end side of the harness guide 99 is fixed to the front lower portion of the right support member 60 </ b> R, and the right end side is fixed to the body frame 2.

  The harness 100 connected to the battery 90 extending from the left and right support members 60L and 60R to the engine 21 side through the front of the right support member 60R is inserted into the harness guide 99. Further, hydraulic hoses 87 and 88 of the hydraulic cylinder 77 are extended along the harness guide 99 to the engine 21 side below the harness guide 99. Thus, while the harness 100 is guided by the harness guide 99, it is isolated from the belt 27 together with the hydraulic hoses 87 and 88, and further, the harness 100 and the hydraulic hoses 87 and 88 are isolated from each other.

  As described above, the harness guide 99 for guiding the harness 100 extending from the battery 90 is disposed in front of the threshing clutch 55 and the support member 60R on the engine 21 side. The hydraulic hoses 87 and 88 can be fixed separately, and problems such as disconnection of the harness 100 due to vibrations of the hydraulic hoses 87 and 88 can be prevented. Further, the harness 100 of the battery 90 and the hydraulic hoses 87 and 88 of the hydraulic cylinder 77 can be protected from the belt 27 for transmitting power from the engine 21 disposed in front of the threshing clutch 55 to the transmission 19.

  Further, as shown in FIG. 8, the harness 100 extending from the battery 90 is wired to the transmission through the front of the engine as described above, and the cutting unit 4 and the operation operation are performed via the front side of the threshing unit 5. It is wired to reach the part 15. As a result, when the muffler 102 of the engine 21 is extended upward as in the present embodiment, the harness 100 extending to the driving operation unit 15 can be disposed away from the muffler 102 that is at a high temperature. Damage to the harness 100 can be prevented. Moreover, the wiring of the harness 100 between the battery 90 and the driving | operation operation part 15 can be simplified, and the improvement of an assembly performance can be aimed at.

  Finally, the structure of the support part of the cutting part 4 by the left and right support members 60L and 60R will be described.

  As shown in FIGS. 6, 7, and 9, in the left and right support members 60 </ b> L and 60 </ b> R, the left side of the cutting input case 61 that serves as a pivotal fulcrum portion of the cutting unit 4 is supported on one left support member 60 </ b> L. The left support member 111 is rotatably provided by a shaft portion 111a whose axis is oriented in the vertical direction, and a right support member 115 that supports the right side of the cutting input case 61 is fixed to the upper portion of the other right support member 60R. ing. Then, the lock by the lock mechanism of the cutting input case 61 supported by the left and right support members 111 and 115 is released, so that the cutting input case 61 moves in a substantially horizontal direction about the shaft portion 111a of the left support member 111. It can be turned. That is, the cutting part 4 supported by the cutting input case 61 can be laterally rotated to the left side of the machine body.

  The lock mechanism is provided on the right support member 115 and is configured such that the right side of the cutting input case 61 can be locked to the right support member 115 in a fixed state by the lock member 116. Each of the right support member 115 and the lock member 116 has recesses 115a and 116a along the outer peripheral shape of the cutting input case 61, and is disposed vertically so that the recesses 115a and 116a face each other. The cutting input case 61 is sandwiched between the right support member 115 and the cutting input case 61 is sandwiched between the right support member 115 and the right support member 115.

  The lock member 116 is rotatably supported by the right support member 115 by a fulcrum shaft 117. When the lock member 116 is rotated upward about the fulcrum shaft 117, the cutting input case is sandwiched and released from the fixed state. Can be done. The operation lever 15 is provided with a lock lever 120 as an operation means for operating the rotation of the lock member 116. The lock lever 120 is arranged so as to extend in the vertical direction, the lower end side is fixed to the fulcrum shaft 117 of the lock member 106, and the upper end side protrudes from the lever guide 121 arranged above the lock member 106. It can be rotated in the front-rear direction about the fulcrum shaft 117 along the guide groove.

  With this configuration, when the lock lever 120 is rotated forward, the lock member 116 is rotated downward about the fulcrum shaft 117, and the cutting input case 61 is clamped by the right support member 115. Thus, the cutting input case 61 cannot be rotated. On the other hand, when the lock lever 120 is rotated backward, the lock member 116 is rotated upward about the fulcrum shaft 117, and the cutting input case 61 is released from the state of being clamped and fixed by the right support member 115. Thus, the lock is released and the cutting input case 61 can be rotated. That is, the cutting unit 4 can be turned sideways.

  In such a configuration in which the cutting unit 4 is laterally rotated with a lock mechanism, the lock member 116 has the pulley 31 on the cutting drive shaft of the transmission 19 and the cutting input disposed on the side of the cutting input case 61. A belt presser 125 for preventing the belt 33 wound around the cutting pulley 32 on the shaft from being detached from the cutting pulley 32 is provided. The belt presser 125 includes a shaft-shaped presser part 125a arranged in parallel with the axis of the cutting input shaft and a connecting part 125b that connects the presser part 125a to the lock member 116. The presser part 125a is connected to the cutting pulley 32. The belt 33 can be pressed from above by arranging it so as not to contact the cutting pulley 32 and the belt 33 on the outer side of the outer periphery of the belt 33 by a substantially thickness.

  Thereby, when the cutting input case 61 is locked by the lock member 116 and the cutting unit 4 is disposed at the front of the machine body, the belt presser 125 is installed at an optimal position with respect to the cutting pulley 32 and the belt 33, It is possible to reliably prevent the belt 33 from being detached from the cutting pulley 32. Further, when the lock input unit 61 is unlocked by the lock member 116 by rotating the lock lever 120 and the cutting unit 4 is rotated sideways, the belt presser is moved along with the upward rotation of the lock member 116. Since the presser part 125a of 125 can also be moved upward, the belt presser 125 does not hinder the movement of the cutting pulley 32, and the side part of the cutting part 4 can be smoothly rotated.

The side view which shows the whole structure of a combine. The top view which shows the whole structure of a combine. The figure which shows the structure of the power transmission mechanism of a combine. The side view which shows the structure of the body frame front part. The side view which shows the structure of a threshing clutch installation part. The top view which shows the structure of a body frame front part. The front view which shows the structure of a body frame front part. The schematic diagram which shows the wiring structure of a harness. The side view which shows the structure of the lock mechanism of a cutting part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 2 Airframe frame 4 Cutting part 21 Engine 55 Threshing clutch 60L Support member 60R Support member 77 Hydraulic cylinder (actuator)
90 Battery 91 Battery cover 98 Cover 99 Harness guide 100 Harness

Claims (4)

  A pair of left and right support members that support the engine and the rotation fulcrum portion of the cutting part are juxtaposed in the left and right direction on the body frame, and the engine and the support member on the engine side are connected to the threshing part from the engine. In a combine provided with a belt-tension type threshing clutch for connecting and disconnecting power transmission, an actuator for performing on / off operation of the threshing clutch and a battery are arranged side by side between the left and right support members, and the actuator is disposed on the engine side. A combine that is provided on the support member.   The combine according to claim 1, wherein a battery cover is disposed between the actuator and the battery to cover the battery from the side of the actuator and from above.   The combine according to claim 1 or 2, wherein a cover that covers the hydraulic cylinder and the battery from the front and above is disposed between the left and right support members.   The combine according to any one of claims 1 to 3, wherein a harness guide for guiding a harness extending from the battery is disposed in front of the threshing clutch and an engine-side support member.

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