JP5191271B2 - Combine - Google Patents

Description

  The present invention includes a travel power transmission path for transmitting engine power to a travel section via a travel transmission, and a preprocessing power transmission path for transmitting vehicle speed-linked power extracted from the travel power transmission path to a preprocessing section. It relates to the combine to prepare.

Usually, the pre-processing unit of the combine is driven at a speed linked to the vehicle speed. As a transmission system for driving the pre-processing unit at a speed that is linked to the vehicle speed, a system that transmits the vehicle speed-linked power extracted from the travel power transmission path to the pre-processing unit, or a constant rotation power is HST (hydrostatic stepless). There is known a method of shifting to vehicle-speed-linked power by a transmission device and transmitting the power to a preprocessing unit (see, for example, Patent Document 1).
Japanese Patent No. 3756120

  However, in any of the methods, since a large displacement engine is used to prevent momentary power shortage, there is a problem that not only the manufacturing cost increases but also the fuel consumption increases. In the method using HST, the pre-processing unit is driven in a running stop state to perform a forced scratching process (a process of transporting the stems remaining in the pre-processing unit to the threshing unit) or before cutting the lodging material. Although it is possible to increase the processing unit drive speed (lifting speed), not only the power loss due to HST is large, but also the hydraulic circuit and gear case are required in addition to HST, which further increases the manufacturing cost. There is a problem of doing.

SUMMARY OF THE INVENTION The present invention was created in view of the above circumstances and has been created for the purpose of solving these problems. The invention of claim 1 transmits the power of the engine to the traveling unit via the traveling transmission. A combine comprising a travel power transmission path and a pre-processing power transmission path for transmitting vehicle speed-linked power extracted from the travel power transmission path to the pre-processing section, wherein the pre-processing power transmission path includes Rutotomoni provided an electric assist motor to assist the drive, and that provided upstream clutch transmission upstream side of the electric assist motor in the pretreatment power transmission path, the upper stream side clutch with oN, driving power transmission path The electric assist motor is generated by the rotation of the electric assist motor that receives the power from the electric power so that the generated electricity can be stored in the battery. The With OFF, a combine, characterized in that the drivable preprocessing unit in the electric assist motor alone.
According to a second aspect of the present invention, there is provided the combine according to the first aspect, wherein a downstream clutch is provided on the transmission downstream side of the electric assist motor .
In this way, the momentary power shortage of the pre-processing unit can be prevented by driving the electric assist motor, so that not only the engine exhaust amount can be reduced to reduce the cost but also the fuel consumption can be suppressed. I can . Further, based on the rotation control of the electric dynamic assist motor, since the pre-processing unit can be driven at any speed, HST, the hydraulic circuit, without providing a like gear case, driving the pre-processing unit at the time of running stop It is possible to increase the drive speed of the pre-processing unit when performing the forced scraping process or cutting the lodging material.

  Next, embodiments of the present invention will be described with reference to the drawings. 1 and 2, reference numeral 1 denotes a combine. The combine 1 includes a pre-processing unit 2 that cuts stalks, a threshing unit 3 that threshs and sorts grains from the cut stalks, and a selected grain. The grain tank 4 is stored, a post-processing unit 5 for processing the threshed waste, a control unit 6 on which the operator gets on, a crawler type traveling unit 7 and the like.

  The pre-processing unit 2 includes a divider 8 for weeding uncut stems, a pulling device 9 for raising the weed stems, a cutting blade (not shown) for cutting the stem base, and a cutting stem It is provided with a pre-processing transport device (not shown) for transporting the straw toward the threshing section 3, a handling depth transport device (not shown) for adjusting the handling depth of the cutting stalks, etc. During work, it is driven at a speed that is linked to the vehicle speed.

  The threshing unit 3 includes a threshing feed chain 10 that conveys stalks along the handling room, a handling cylinder 3a that threshs grains from the conveying stalks, an oscillating sorter 3b that sorts threshed grains, and a sorting wind. Pressurized wind fan 3c for generating wind, first spiral 3d for collecting the first thing, second spiral 3e for collecting the second thing, dust exhaust fan 3f for discharging the waste in the sorting chamber to the outside of the machine, threshed It is configured to include a waste transporting device 3g for transporting the waste toward the post-processing unit 5 and is driven at a constant speed regardless of the vehicle speed. However, in this embodiment, the power transmission path of the threshing feed chain 10 is separated and configured as will be described later, and the threshing feed chain 10 is also driven at a speed interlocking with the vehicle speed, so that the threshing feed chain 10 is moved from the preprocessing unit 2 to the threshing feed chain 10. Delivery of stalks is smoothly performed.

  An engine E that supplies power to the preprocessing unit 2, the threshing unit 3, the traveling unit 7, the threshing feed chain 10, etc. is mounted below the control unit 6. As shown in FIG. 3, the combine 1 of the present embodiment has a threshing power transmission path 13 that transmits the power of the engine E to the threshing unit 3 via a threshing clutch (belt tension clutch) 3 h, and the power of the engine E. A traveling power transmission path 14 that is transmitted to the traveling section 7 via the traveling continuously variable transmission (HST) 11 and the transmission case 12 and a vehicle speed-linked power extracted from the traveling power transmission path 14 are transmitted to the preprocessing section 2. A pre-processing power transmission path 15 and a feed chain power transmission path 16 for transmitting vehicle speed-linked power extracted from the pre-processing power transmission path 15 to the threshing feed chain 10 are provided.

  The preprocessing power transmission path 15 is provided with an electric assist motor 17 that assists in driving the preprocessing unit 2. Since the electric assist motor 17 of the present embodiment is provided on the transmission upstream side of the feed chain power transmission path 16, the driving of the threshing feed chain 10 can be assisted, and even in a non-driven state, By being forcibly rotated by engine power, power is generated by a so-called regenerative action and functions as a generator.

  Further, a first clutch (belt tension clutch) 18 is provided on the transmission upstream side of the electric assist motor 17 in the pretreatment power transmission path 15, and on the transmission downstream side of the electric assist motor 17 in the pretreatment power transmission path 15. A second clutch (belt tension clutch) 19 is provided, and a third clutch (belt tension clutch) 20 is provided in the feed chain power transmission path 16. And according to the ON / OFF (ON / OFF) pattern of these clutches 18 to 20, the operating state of the electric assist motor 17 is switched to the charging mode, the assist mode, and the motor single mode. Yes.

  As shown in FIG. 4, the charging mode is revealed by turning on the first clutch 18 and turning off the second clutch 19 and the third clutch 20. In this mode, the electric assist motor 17 is actively generated by forcibly rotating the electric assist motor 17 in a non-driven state. The electricity generated by the electric assist motor 17 is stored in the battery 22 via the controller 21.

  In the assist mode, the threshing operation assist mode executed in a state where the preprocessing unit 2 is stopped and only the threshing unit 3 is driven (hereinafter referred to as the threshing operation state), and the preprocessing unit 2 and the threshing unit 3 are driven. And a pre-processing operation assist mode executed in a state to be performed (hereinafter referred to as a pre-processing operation state).

  The threshing operation assist mode appears when the first clutch 18 and the third clutch 20 are turned on and the second clutch 19 is turned off. In this mode, driving of the threshing feed chain 10 can be assisted by the electric assist motor 17. For example, when a rotation sensor or a torque sensor is provided in the threshing feed chain 10 or the feed chain power transmission path 16 and it is determined that the threshing feed chain 10 is overloaded based on the detection value of the sensor, the electric assist motor 17 is Drive to assist in driving the threshing feed chain 10. In this way, momentary power shortage of the threshing feed chain 10 can be prevented by driving the electric assist motor 17, so that not only the engine E can be reduced in exhaust amount but also cost reduction, and fuel consumption can be reduced. Can be suppressed. Further, even in the threshing operation assist mode, in the non-assist state where the electric assist motor 17 is not driven, the electric assist motor 17 generates power based on the regenerative action, so that the battery 22 can be charged. In this mode, the rotation of the engine E may be detected by the rotation sensor S1, and the electric assist motor 17 may be driven by overload determination based on the detected rotation.

  The pre-processing driving assist mode appears when the first clutch 18, the second clutch 19, and the third clutch 20 are turned on. In this mode, the electric assist motor 17 can assist the driving of the preprocessing unit 2 and the threshing feed chain 10. For example, when the pretreatment unit 2 or the threshing feed chain 10 is provided with a rotation sensor or a torque sensor and the pretreatment unit 2 or the threshing feed chain 10 is determined to be overloaded based on the detection value of the sensor, the electric assist The motor 17 is driven to assist the driving of the preprocessing unit 2 and the threshing feed chain 10. In this way, momentary power shortage of the pre-processing unit 2 and the threshing feed chain 10 can be prevented by driving the electric assist motor 17, so that not only the engine E can be reduced in exhaust volume but also the cost can be reduced. Also, fuel consumption can be reduced. Further, even in the pre-processing driving assist mode, in the non-assist state where the electric assist motor 17 is not driven, the electric assist motor 17 generates power based on the regenerative action, so that the battery 22 can be charged. In this mode, the rotation of the engine E may be detected, and the electric assist motor 17 may be driven by overload determination based on the detected rotation.

  The motor single mode includes a threshing operation motor single mode executed in the threshing operation state and a pretreatment operation motor single mode executed in the pretreatment operation state. The threshing operation motor single mode appears when the first clutch 18 and the second clutch 19 are turned off and the third clutch 20 is turned on. And in this mode, since the electric assist motor 17 can drive the threshing feed chain 10 independently, based on the rotation control of the electric assist motor 17 by the controller 21, the threshing feed chain 10 is driven at an arbitrary number of rotations. It becomes possible to make it.

  The pre-processing operation motor single mode appears when the first clutch 18 is turned off and the second clutch 19 and the third clutch 20 are turned on. And in this mode, since the electric assist motor 17 can drive the pre-processing part 2 and the threshing feed chain 10 independently, based on rotation control of the electric assist motor 17 by the controller 21, the pre-processing part 2 and the threshing It becomes possible to drive the feed chain 10 at an arbitrary rotational speed. For example, as shown in FIG. 5, in the forced take-up mode executed based on the operation of a forced take-up switch (momentary switch) 24 provided on the main transmission lever 23, based on the rotation control of the electric assist motor 17, The electric assist motor is capable of driving the preprocessing unit 2 and the threshing feed chain 10 at a constant speed, and in the lying down mode executed based on the operation of the lying down switch (alternate switch) 25 provided in the main transmission lever 23. Based on the rotation control of 17, the pre-processing unit 2 and the threshing feed chain 10 can be driven at a vehicle speed interlocking speed increased from that in the normal time (normal mode). In addition, the rotation speed of the electric assist motor 17 in the lodging mode can be calculated based on the detected rotation of the rotation sensor S2 provided in the traveling power transmission path 14.

  According to the present embodiment configured as described, the driving power transmission path 14 that transmits the power of the engine E to the traveling unit 7 via the traveling transmission (the continuously variable transmission 11 for traveling and the transmission case 12), A combine 1 including a pre-processing power transmission path 15 that transmits vehicle speed-linked power extracted from the traveling power transmission path 14 to the pre-processing section 2, and driving the pre-processing section 2 in the pre-processing power transmission path 15. Since the electric assist motor 17 for assisting is provided, the momentary power shortage of the preprocessing unit 2 can be prevented by driving the electric assist motor 17. As a result, not only can the engine E have a small exhaust amount to reduce the cost, but also the fuel consumption can be suppressed.

  Further, since the pre-processing unit 2 can be driven by the electric assist motor 17 alone, the pre-processing unit 2 can be driven at an arbitrary number of rotations based on the rotation control of the electric assist motor 17. As a result, even if no HST, hydraulic circuit, gear case, or the like is provided, the pretreatment unit 2 is driven to stop forcibly when driving is stopped, or the driving speed of the pretreatment unit 2 is increased when the lodging material is trimmed. It becomes possible to make it.

  Next, a second embodiment of the present invention will be described with reference to FIGS. However, the part which is common with 1st embodiment attaches the same code | symbol as 1st embodiment, and uses description of 1st embodiment.

  As shown in FIG. 6, the second embodiment includes two electric assist motors 17 </ b> A and 17 </ b> B, and assists the driving of the pretreatment unit 2 and the threshing feed chain 10 with separate electric assist motors 17 </ b> A and 17 </ b> B, respectively. This is different from the first embodiment. In this way, it becomes possible to assist (or shift) only the drive of the preprocessing unit 2 or assist (or shift) only the drive of the threshing feed chain 10 depending on the situation.

  Specifically, in the second embodiment, the first electric assist motor 17A provided in the preprocessing power transmission path 15, the second electric assist motor 17B provided in the feed chain power transmission path 16, and the preprocessing A first clutch (belt tension clutch) 26 provided on the transmission upstream side of the electric assist motor 17A in the power transmission path 15 and a second clutch provided on the transmission upstream side of the second electric assist motor 17B in the feed chain power transmission path 16. (Belt tension clutch) 27. And according to the ON / OFF (on / off) pattern of these clutches 26 and 27, the operating states of the first electric assist motor 17A and the second electric assist motor 17B are changed to the assist charging mode and the motor single mode. It can be switched.

  As shown in FIG. 7, the assist charging mode includes a threshing operation assist charging mode executed in the threshing operation state and a preprocessing operation assist charging mode executed in the preprocessing operation state.

  The threshing operation assist charging mode appears when the first clutch 26 is turned off and the second clutch 27 is turned on. In this mode, driving of the threshing feed chain 10 can be assisted by the second electric assist motor 17B. For example, when a rotation sensor or a torque sensor is provided in the threshing feed chain 10 or the feed chain power transmission path 16 and it is determined that the threshing feed chain 10 is overloaded based on the detection value of the sensor, the electric assist motor 17 is Drive to assist in driving the threshing feed chain 10. In this way, momentary power shortage of the threshing feed chain 10 can be prevented by driving the electric assist motor 17, so that not only the engine E can be reduced in exhaust amount but also cost reduction, and fuel consumption can be reduced. Can be suppressed. Further, in the threshing operation assist charging mode, in the non-assist state where the second electric assist motor 17B is not driven, the second electric assist motor 17B generates power based on the regenerative action, so that the battery 22 can be charged. In this mode, the rotation of the engine E may be detected, and the second electric assist motor 17B may be driven by an overload determination based on the detected rotation.

  The pre-processing driving assist charging mode appears when the first clutch 26 and the second clutch 27 are turned on. In this mode, the driving of the pretreatment unit 2 and the threshing feed chain 10 can be individually assisted by the first electric assist motor 17A and the second electric assist motor 17B. For example, when the pre-processing unit 2 and the threshing feed chain 10 are provided with a rotation sensor and a torque sensor and the pre-processing unit 2 and the threshing feed chain 10 are determined to be overloaded based on the detection value of the sensor, the first The electric assist motor 17 </ b> A and the second electric assist motor 17 </ b> B are individually or simultaneously driven to assist the driving of the preprocessing unit 2 and the threshing feed chain 10. In this way, momentary power shortage of the preprocessing unit 2 and the threshing feed chain 10 can be prevented by driving the first electric assist motor 17A and the second electric assist motor 17B. In addition to reducing costs, fuel consumption can also be reduced. In the pre-processing driving assist mode, in the non-assist state where the first electric assist motor 17A and the second electric assist motor 17B are not driven, the first electric assist motor 17A and the second electric assist motor 17B generate electric power based on the regenerative action. Thus, the battery 22 can be charged. In this mode, the rotation of the engine E may be detected, and the first electric assist motor 17A and the second electric assist motor 17B may be driven by overload determination based on the detected rotation.

  The motor single mode includes a threshing operation motor single mode executed in the threshing operation state and a pretreatment operation motor single mode executed in the pretreatment operation state. Any motor single mode is manifested by turning off the first clutch 26 and the second clutch 27. And in the threshing operation motor single mode, since the 2nd electric assist motor 17B can drive the threshing feed chain 10 independently, the threshing feed chain 10 is based on rotation control of the 2nd electric assist motor 17B by the controller 21. Can be driven at an arbitrary rotational speed.

  On the other hand, in the pre-processing operation motor single mode, the pre-processing unit 2 and the threshing feed chain 10 are driven at an arbitrary number of rotations based on the rotation control of the first electric assist motor 17A and the second electric assist motor 17B by the controller 21. It becomes possible. For example, as shown in FIG. 5, in the forced take-up mode executed based on the operation of a forced take-up switch (momentary switch) 24 provided on the main transmission lever 23, the first electric assist motor 17A and the second electric assist Based on the rotation control of the motor 17B, the pre-processing unit 2 and the threshing feed chain 10 can be driven at a constant speed, and executed based on the operation of an inversion switch (alternate switch) 25 provided on the main transmission lever 23. In the lying down mode, the vehicle speed interlocking in which the preprocessing unit 2 and the threshing feed chain 10 are accelerated than in the normal time (normal mode) based on the rotation control of the first electric assist motor 17A and the second electric assist motor 17B. It can be driven at speed.

  Next, a third embodiment of the present invention will be described with reference to FIGS. However, the part which is common with the said embodiment attaches the same code | symbol as the said embodiment, and uses description of the said embodiment.

  As shown in FIG. 8, the third embodiment includes two electric assist motors 17 </ b> A and 17 </ b> B as in the second embodiment, and drives the pretreatment unit 2 and the threshing feed chain 10 separately. 17A and 17B assist, but the third clutch (belt tension clutch) 28 provided on the downstream side of the electric assist motor 17A in the pre-processing power transmission path 15 and the second electric assist motor 17B in the feed chain power transmission path 16 This is different from the second embodiment in that a fourth clutch (belt tension clutch) 29 provided on the downstream side of the transmission is added. In this way, as in the second embodiment, only the drive of the preprocessing unit 2 is assisted (or changed) or only the drive of the threshing feed chain 10 is assisted (or changed) according to the situation. This makes it possible to set a dedicated charging mode that does not serve as an assist mode. In the threshing operation assist mode, it is possible to strongly assist the driving of the threshing feed chain 10 with the two electric assist motors 17A and 17B.

  More specifically, in the third embodiment, the operating states of the first electric assist motor 17A and the second electric assist motor 17B according to the ON / OFF (on / off) patterns of the four clutches 26 to 29 are described. However, the charging mode, the assist mode, and the motor single mode can be switched.

  As shown in FIG. 9, the charging mode includes a strong charging mode and a weak charging mode. The strong charging mode is activated by turning on the first clutch 26 and the second clutch 27 and turning off the third clutch 28 and the fourth clutch 29. In this mode, the first electric assist motor 17A and the second electric assist motor 17B in a non-driven state are forcibly rotated, so that the two electric assist motors 17A and 17B are actively generated. The electricity generated by the two electric assist motors 17 </ b> A and 17 </ b> B is stored in the battery 22 via the controller 21.

  In the weak charging mode, the first clutch 26 is turned on and the second clutch 27, the third clutch 28 and the fourth clutch 29 are turned off, or the second clutch 27 is turned on and the first clutch 26, the third clutch 29 are turned on. It appears when the clutch 28 and the fourth clutch 29 are turned off. In this mode, one of the electric assist motors 17A and 17B is caused to generate electric power by forcibly rotating the first electric assist motor 17A or the second electric assist motor 17B in a non-driven state. Then, electricity generated by any one of the electric assist motors 17 </ b> A and 17 </ b> B is stored in the battery 22 via the controller 21.

  The assist mode includes a threshing operation assist mode executed in the threshing operation state and a pretreatment operation assist mode executed in the pretreatment operation state. Further, the threshing operation assist mode includes the strength of the assist. Based on the difference, a threshing driving assist weak mode and a threshing driving assist strong mode are included.

  The threshing operation assist weak mode appears when the first clutch 26 and the third clutch 28 are turned off and the second clutch 27 and the fourth clutch 29 are turned on. In this mode, driving of the threshing feed chain 10 can be assisted by the second electric assist motor 17B. For example, when a rotation sensor or a torque sensor is provided in the threshing feed chain 10 or the feed chain power transmission path 16 and it is determined that the threshing feed chain 10 is overloaded based on the detection value of the sensor, the electric assist motor 17 is Drive to assist in driving the threshing feed chain 10. In this way, momentary power shortage of the threshing feed chain 10 can be prevented by driving the electric assist motor 17, so that not only the engine E can be reduced in exhaust amount but also cost reduction, and fuel consumption can be reduced. Can be suppressed. Further, in the threshing operation assist weak mode, the battery 22 can be charged because the second electric assist motor 17B generates electric power based on the regenerative action in the non-assist state where the second electric assist motor 17B is not driven. In this mode, the rotation of the engine E may be detected, and the second electric assist motor 17B may be driven by an overload determination based on the detected rotation.

  The threshing driving assist strong mode is manifested by turning off the third clutch 28 and turning on the first clutch 26, the second clutch 27, and the fourth clutch 29. In this mode, driving of the threshing feed chain 10 can be assisted by the first electric assist motor 17A and the second electric assist motor 17B.

  The pre-processing driving assist mode appears when the first clutch 26, the second clutch 27, the third clutch 28, and the fourth clutch 29 are turned on. In this mode, the driving of the pretreatment unit 2 and the threshing feed chain 10 can be individually assisted by the first electric assist motor 17A and the second electric assist motor 17B. For example, when the pre-processing unit 2 and the threshing feed chain 10 are provided with a rotation sensor and a torque sensor and the pre-processing unit 2 and the threshing feed chain 10 are determined to be overloaded based on the detection value of the sensor, the first The electric assist motor 17 </ b> A and the second electric assist motor 17 </ b> B are individually or simultaneously driven to assist the driving of the preprocessing unit 2 and the threshing feed chain 10. In this way, momentary power shortage of the preprocessing unit 2 and the threshing feed chain 10 can be prevented by driving the first electric assist motor 17A and the second electric assist motor 17B. In addition to reducing costs, fuel consumption can also be reduced. In the pre-processing driving assist mode, the first electric assist motor 17A and the second electric assist motor 17B generate electric power based on the regenerative action in a non-assist state where the first electric assist motor 17A and the second electric assist motor 17B are not driven. Thus, the battery 22 can be charged. In this mode, the rotation of the engine E may be detected, and the first electric assist motor 17A and the second electric assist motor 17B may be driven by overload determination based on the detected rotation.

  The motor single mode includes a threshing operation motor single mode executed in the threshing operation state and a pretreatment operation motor single mode executed in the pretreatment operation state. In the threshing motor single mode, the first clutch 26 and the second clutch 27 are turned off and the third clutch 28 and the fourth clutch 29 are turned on, or the second clutch 27 and the third clutch 28 are turned off, It appears when the first clutch 26 and the fourth clutch 29 are turned on. And in the threshing operation motor single mode, since the 2nd electric assist motor 17B can drive the threshing feed chain 10 independently, the threshing feed chain 10 is based on rotation control of the 2nd electric assist motor 17B by the controller 21. Can be driven at an arbitrary rotational speed.

  On the other hand, the pre-processing operation motor single mode appears when the first clutch 26 and the second clutch 27 are turned off and the third clutch 28 and the fourth clutch 29 are turned on. In the pre-processing operation motor single mode, the pre-processing unit 2 and the threshing feed chain 10 are driven at an arbitrary number of rotations based on the rotation control of the first electric assist motor 17A and the second electric assist motor 17B by the controller 21. It becomes possible. For example, as shown in FIG. 5, in the forced take-up mode executed based on the operation of a forced take-up switch (momentary switch) 24 provided on the main transmission lever 23, the first electric assist motor 17A and the second electric assist Based on the rotation control of the motor 17B, the pre-processing unit 2 and the threshing feed chain 10 can be driven at a constant speed, and executed based on the operation of an inversion switch (alternate switch) 25 provided on the main transmission lever 23. In the lying down mode, the vehicle speed interlocking in which the preprocessing unit 2 and the threshing feed chain 10 are accelerated than in the normal time (normal mode) based on the rotation control of the first electric assist motor 17A and the second electric assist motor 17B. It can be driven at speed.

It is a side view of a combine. It is a top view of a combine. It is a transmission circuit diagram which shows the transmission structure of a combine. It is explanatory drawing which shows the various modes of an electric assist motor. (A) And (B) is the front view and side view of a main transmission lever, (C) is a graph which shows the relationship between pre-processing rotation speed and driving speed. It is a transmission circuit diagram which shows the transmission structure of the combine which concerns on 2nd embodiment. It is explanatory drawing which shows the various modes of the electric assist motor which concerns on 2nd embodiment. It is a transmission circuit diagram which shows the transmission structure of the combine which concerns on 3rd embodiment. It is explanatory drawing which shows the various modes of the electric assist motor which concerns on 3rd embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 2 Preprocessing part 3 Threshing part 7 Traveling part 10 Threshing feed chain 11 Continuously variable transmission 12 for traveling 12 Transmission case 13 Threshing power transmission path 14 Traveling power transmission path 15 Preprocessing power transmission path 16 Feed chain power transmission path 17 Electricity Assist motor 18 First clutch 19 Second clutch 20 Third clutch 21 Controller 22 Battery 26 First clutch 27 Second clutch 28 Third clutch 29 Fourth clutch E Engine

Claims (2)

This is a combine comprising a driving power transmission path for transmitting engine power to the driving section via the driving transmission and a pre-processing power transmission path for transmitting vehicle speed-linked power extracted from the driving power transmission path to the pre-processing section. And
The pretreatment power transmission path in, Rutotomoni provided an electric assist motor that assists a driving of the pre-processing unit,
An upstream clutch is provided on the transmission upstream side of the electric assist motor in the pretreatment power transmission path,
By turning on the upstream clutch, the electric assist motor is generated by the rotation of the electric assist motor that receives power from the travel power transmission path, and the generated electricity can be stored in the battery.
The combine is characterized in that the pre-processing section can be driven by the electric assist motor alone by turning off the upstream clutch . The combine according to claim 1 , wherein a downstream clutch is provided on the transmission downstream side of the electric assist motor .

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