CN110370925B - Crawler-type differential forward and reverse rotation power coupling device and gearbox - Google Patents
Crawler-type differential forward and reverse rotation power coupling device and gearbox Download PDFInfo
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- CN110370925B CN110370925B CN201910569108.5A CN201910569108A CN110370925B CN 110370925 B CN110370925 B CN 110370925B CN 201910569108 A CN201910569108 A CN 201910569108A CN 110370925 B CN110370925 B CN 110370925B
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- 230000008878 coupling Effects 0.000 title claims abstract description 174
- 238000010168 coupling process Methods 0.000 title claims abstract description 174
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 174
- 230000005540 biological transmission Effects 0.000 claims abstract description 61
- 230000001105 regulatory effect Effects 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 230000008859 change Effects 0.000 claims abstract description 21
- 238000011065 in-situ storage Methods 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 abstract description 2
- 230000009347 mechanical transmission Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241001124569 Lycaenidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
The invention provides a crawler-type differential forward and reverse rotation power coupling device and a gearbox, wherein the power coupling device comprises: the device comprises an engine, a speed regulating motor unit, a traction motor unit, a mechanical speed change mechanism, a rotating speed coupling device and a torque coupling device; the engine is connected with a mechanical speed change mechanism through a clutch, the mechanical speed change mechanism is connected with a central transmission gear in a rotating speed coupling device, the output end of the rotating speed coupling device is connected with a first input end of a torque coupling device through the clutch, a speed regulating motor group is connected with the rotating speed coupling device, and a clutch is arranged between a second input end of the torque coupling device and a traction motor group; the invention can realize the stepless speed change of the crawler vehicle, and can realize the actions of unilateral braking steering, free radius steering, in-situ steering and the like of the crawler vehicle through the cooperation of an engine, a motor and the like, thereby meeting the good passing performance of the crawler vehicle.
Description
Technical Field
The invention relates to the field of harvesting machinery in agricultural engineering, in particular to a crawler-type differential forward and reverse rotation power coupling device and a gearbox.
Background
At present, a domestic crawler combine harvester mostly adopts a mode of combining a single hydraulic stepless transmission HST and a mechanical gearbox to transfer power and control direction, and single-side braking steering is mostly adopted during steering, as the prior art discloses a crawler combine harvester, which comprises a driving device for driving a travelling device to walk, wherein the driving device is hydrostatic driving, and comprises a plunger variable hydraulic pump driven by an engine, a quantitative plunger hydraulic motor driven by the plunger variable hydraulic pump and a planetary reducer driven by the hydraulic motor. In addition, crawler-type combine harvesters need to frequently start, stop and turn in muddy paddy fields, and energy loss is serious.
The prior art discloses a dual-motor coupling type tracked vehicle electromechanical compound transmission device, the device solves the problem of backflow power transmission from an inner side tracked belt to an outer side tracked belt driven by dual motors independently, but a mechanical transmission case of the device comprises two sets of three-gear planetary speed changing mechanisms, two sets of confluence planetary bars, one set of intermediate coupling mechanisms and two sets of speed reduction planetary bars, the structure is too complex, and the whole size and the weight of the transmission case are too large, so that the weight of a tracked vehicle chassis is too large, and sagging is easily caused in a deep mud foot field, so that the device is not suitable for a crawler combine harvester. The prior art also discloses a double differential crawler combine gearbox, through adopting differential steering mechanism for engine input power all shifts into right side track when braking, and little braking power loss, it is easier when turning to, but it can not realize the in situ steering.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a power coupling device for forward and reverse rotation of a crawler differential, which not only can realize stepless speed change of a crawler vehicle, but also can realize unilateral braking steering, free radius steering and in-situ steering of the crawler vehicle.
The present invention achieves the above technical object by the following means.
A power coupling device for a tracked differential forward and reverse rotation, applied to a tracked vehicle, the tracked vehicle including a left axle and a right axle, the power coupling device comprising: the device comprises an engine, a speed regulating motor unit, a traction motor unit, a mechanical speed change mechanism, a rotating speed coupling device, a torque coupling device, a first left clutch, a first right clutch, a second left clutch, a second right clutch and a third clutch;
the third clutch is arranged between an output shaft of the engine and an input end of the mechanical speed change mechanism;
The rotating speed coupling device comprises a central transmission gear, a left rotating speed coupling component and a right rotating speed coupling component, wherein the left rotating speed coupling component and the right rotating speed coupling component are the same and are planetary gear mechanisms, sun gears in the left rotating speed coupling component and the right rotating speed coupling component are respectively arranged at two ends of a gear shaft of the central transmission gear, and an output end of the mechanical speed change mechanism is in transmission connection with the central transmission gear;
The speed regulating motor unit comprises a left speed regulating motor and a right speed regulating motor, the left speed regulating motor is in transmission connection with a gear ring in the left rotating speed coupling assembly, and the right speed regulating motor is in transmission connection with the gear ring in the right rotating speed coupling assembly;
the torque coupling device comprises a left torque coupling component and a right torque coupling component which are the same, wherein the left torque coupling component is a two-shaft gear transmission mechanism and comprises two input ends and an output end, the output end of the left torque coupling component is in transmission connection with a left axle, and the output end of the right torque coupling component is in transmission connection with the right axle;
The first left clutch is arranged between the first input end of the left torque coupling component and the output end of the left rotating speed coupling component, and the first right clutch is arranged between the first input end of the right torque coupling component and the output end of the right rotating speed coupling component;
The traction motor group comprises a left traction motor and a right traction motor, the second left clutch is arranged between the second input end of the left torque coupling assembly and the left traction motor, and the second right clutch is arranged between the second input end of the right torque coupling assembly and the right traction motor.
Preferably, the left rotational speed coupling assembly comprises a sun gear, planet gears, a planet carrier, a gear ring and a rotational speed coupling output gear, wherein a plurality of planet gears uniformly distributed on the planet carrier are respectively meshed with the sun gear and the gear ring, the rotational speed coupling output gear is meshed with the gear ring, and the rotational speed coupling output gear is connected with the first left clutch.
Preferably, the left side torque coupling assembly comprises a transmission shaft, a first torque coupling input shaft, a second torque coupling input shaft, a first input gear, a second input gear, a first transmission gear, a second transmission gear and a torque coupling output gear;
The first input gear is arranged on the first torque coupling input shaft, the second input gear is arranged on the second torque coupling input shaft, the first transmission gear and the second transmission gear are both arranged on the transmission shaft, the torque coupling output gear is arranged on the left axle, the first transmission gear is meshed with the first input gear and the second input gear, and the second transmission gear is meshed with the torque coupling output gear.
Preferably, the mechanical speed change mechanism comprises a low-speed gear, a medium-speed gear, a high-speed gear, a speed change shaft and a shifting fork mechanism.
Preferably, under the in-situ steering working condition, the first left clutch, the first right clutch and the third clutch are all opened, the second left clutch and the second right clutch are closed, the left traction motor and the right traction motor work simultaneously and are opposite in steering, and finally the speeds of the crawler belt outputs on the left side and the right side are the same and opposite in direction.
Preferably, under the free radius steering working condition, the first left clutch, the first right clutch, the third clutch, the second left clutch and the second right clutch are all closed, power output by the engine and power output by the left speed regulating motor and the right speed regulating motor are subjected to rotational speed coupling at a rotational speed coupling device, torque coupling is performed at a torque coupling device with power output by the left traction motor and the right traction motor, and finally the power is output to the left axle and the right axle, the left traction motor and the right traction motor output different rotational speeds, finally the left crawler belt and the right crawler belt realize differential speed, and the crawler belt type vehicle is driven to perform free radius steering.
The invention also provides a differential gearbox which comprises any power coupling device.
The invention has the beneficial effects that:
1) The invention can realize the same time and have the rotational speed coupling and the torque coupling, in the invention, the engine and the speed regulating motor group respectively control the rotational speed of the planet carrier and the sun gear in the planetary gear mechanism in the rotational speed coupling device, and the power of the engine and the speed regulating motor group are subjected to the rotational speed coupling at the rotational speed coupling device, thereby controlling the output rotational speed of the gear ring, further steplessly controlling the speed ratio range of the rotational speed coupling device, and realizing the stepless speed change of the crawler-type vehicle; the power of the traction motor group and the speed regulating motor group is subjected to torque coupling at a torque coupling device based on a two-shaft gear mechanism, so that the superposition of the torque output by the traction motor group and the torque output by the engine and the speed regulating motor group is realized; the engine, the speed regulating motor unit and the traction motor unit can realize the forward, backward, unilateral braking steering, free radius steering and in-situ steering of the crawler type vehicle, and the passing performance and the maneuvering performance of the crawler type vehicle are greatly improved.
2) The speed regulating motor can also be used as a generator to charge the storage battery of the crawler vehicle, and when the engine is in an idle working condition, the speed regulating motor becomes the generator to charge the storage battery pack, so that the energy recovery is realized.
Drawings
FIG. 1 is a schematic view of a preferred embodiment of a power coupling device for a crawler differential forward and reverse rotation of the present invention;
FIG. 2 is a schematic structural view of the left rotational speed coupling assembly of FIG. 1;
Fig. 3 is a schematic diagram of the left side torque coupling assembly of fig. 1.
Reference numerals:
1-an engine; 2 a-left speed regulating motor; 2 b-right speed regulating motor; 3 a-left traction motor; 3 b-right traction motor; 4-mechanical shifting mechanism; 5-a rotational speed coupling device; 5-1-left side rotational speed coupling assembly; 5-1-1-sun gear; 5-1-2-planet gears; 5-1-3-planetary carriers; 5-1-4-gear ring; 5-1-5-rotating speed coupling output gears; 5-2-central drive gear; a 5-3-right side rotational speed coupling assembly; 6-torque coupling means; a 6-1-left torque coupling assembly; 6-1-1-transmission shafts; 6-1-2-first torque coupling input shaft; 6-1-3-a second torque coupling input shaft; 6-1-4-first input gear; 6-1-5-second input gear; 6-1-6-first transmission gear; 6-1-7-second transmission gear; 6-1-8-torque coupling output gear; a 6-2-right torque coupling assembly; 7-left axle; 8-right axle; 9 a-a first left clutch; 9 b-a first right clutch; 10 a-a second left clutch; 10 b-a second right clutch; 11-third clutch.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments, but the scope of the invention is not limited thereto.
The following is a power coupling device for a crawler-type differential forward and reverse rotation according to a preferred embodiment of the present invention, the crawler-type vehicle comprising: comprising a left axle 7 and a right axle 8, the power coupling device comprising: an engine 1, a speed regulating motor group, a traction motor group, a mechanical transmission mechanism 4, a rotational speed coupling device 5, a torque coupling device 6, a first left clutch 9a, a first right clutch 9b, a second left clutch 10a, a second right clutch 10b and a third clutch 11.
Specifically, as shown in fig. 1, the third clutch 11 is provided between the output shaft of the engine 1 and the input end of the mechanical transmission mechanism 4.
The rotating speed coupling device 5 comprises a central transmission gear 5-2, a left rotating speed coupling component 5-1 and a right rotating speed coupling component 5-3, wherein the left rotating speed coupling component 5-1 and the right rotating speed coupling component 5-3 are the same and are planetary gear mechanisms. Taking the left rotational speed coupling assembly 5-1 as an example, as shown in fig. 2, the left rotational speed coupling assembly 5-1 comprises a sun gear 5-1-1, a planet gear 5-1-2, a planet carrier 5-1-3, a gear ring 5-1-4 and a rotational speed coupling output gear 5-1-5, wherein a plurality of planet gears 5-1-2 uniformly distributed on the planet carrier 5-1-3 are respectively meshed with the sun gear 5-1-1 and the gear ring 5-1-4, and the rotational speed coupling output gear 5-1-5 is meshed with the gear ring 5-1-4.
The sun gears in the left rotating speed coupling assembly 5-1 and the right rotating speed coupling assembly 5-3 are respectively arranged at two ends of the gear shaft of the central transmission gear 5-2, and the output end of the mechanical speed change mechanism 4 is in transmission connection with the central transmission gear 5-2.
The speed regulating motor group comprises a left speed regulating motor 2a and a right speed regulating motor 2b, the left speed regulating motor 2a is in transmission connection with a gear ring in the left rotating speed coupling assembly 5-1, the right speed regulating motor 2b is in transmission connection with the gear ring in the right rotating speed coupling assembly 5-3, and when the third clutch 11 is closed, the rotating speed coupling device 5 is used for carrying out rotating speed coupling, so that the output rotating speeds of the two gear rings are controlled, the speed ratio range of the rotating speed coupling device 5 can be controlled steplessly, and the stepless speed change of the crawler vehicle is realized. The mechanical transmission mechanism 4 in the present embodiment includes a low-speed gear, a medium-speed gear, a high-speed gear, a transmission shaft, and a shift fork mechanism, and is capable of realizing three-gear transmission of the crawler vehicle.
The torque coupling device 6 includes a left torque coupling component 6-1 and a right torque coupling component 6-2 which are identical, and is a two-shaft gear transmission mechanism, and the left torque coupling component 6-1 is taken as an example for illustration, as shown in fig. 3, the left torque coupling component 6-1 includes a transmission shaft 6-1-1, a first torque coupling input shaft 6-1-2, a second torque coupling input shaft 6-1-3, a first input gear 6-1-4, a second input gear 6-1-5, a first transmission gear 6-1-6, a second transmission gear 6-1-7 and a torque coupling output gear 6-1-8; the first input gear 6-1-4 is mounted on the first torque coupling input shaft 6-1-2, the second transmission gear 6-1-7 is mounted on the second torque coupling input shaft 6-1-3, the first transmission gear 6-1-6 and the second transmission gear 6-1-7 are both mounted on the transmission shaft 6-1-1, the torque coupling output gear 6-1-8 is mounted on the left axle 7, the first transmission gear 6-1-6 is meshed with the first input gear 6-1-4 and the second input gear 6-1-5, and the second transmission gear 6-1-7 is meshed with the torque coupling output gear 6-1-8.
The first left clutch 9a is disposed between the first input end of the left torque coupling assembly 6-1 and the output end of the left rotational speed coupling assembly 5-1, that is, the first left clutch 9a is disposed between the first transmission gear 6-1-6 and the rotational speed coupling output gear 5-1-5, and similarly, the first right clutch 9b is disposed between the first input end of the right torque coupling assembly 6-2 and the output end of the right rotational speed coupling assembly 5-3.
The traction motor group comprises a left traction motor 3a and a right traction motor 3b, the second left clutch 10a is arranged between the second input end of the left torque coupling assembly 6-1 and the left traction motor 3a, namely, the second left clutch 10a is arranged between the second input gear 6-1-5 and the left traction motor 3 a; similarly, the second right clutch 10b is disposed between the second input of the right torque coupling assembly 6-2 and the second right clutch 10 b.
The working mode of the crawler type differential forward and reverse power coupling device is as follows:
When the second left clutch 10a and the second right clutch 10b are opened and the first left clutch 9a, the first right clutch 9b and the third clutch 11 are closed, the engine 1 transmits power to the rotational speed coupling device 5 through the mechanical transmission mechanism 4 and then outputs the power to the left axle 7 and the right axle 8 through the torque coupling device 6, thereby achieving forward and reverse of the crawler vehicle. At this time, the speed regulating motor group works, the power of the speed regulating motor group and the power of the engine 1 are in rotational speed coupling at the rotational speed coupling device 5, the stepless speed change of the crawler vehicle can be realized, and meanwhile, the three-gear speed change of the crawler vehicle can be realized through the mechanical speed change mechanism 4.
When the first left clutch 9a, the first right clutch 9b and the third clutch 11 are opened, the second left clutch 10a and the second right clutch 10b are closed, and the left traction motor 3a is operated, power is output to the left axle 7 through the torque coupling device 6, and at this time, the right traction motor 3 is not operated, and at this time, the tracked vehicle can realize a right steering action. Similarly, when the left traction motor 3a works and the right traction motor 3b works, left steering of the crawler vehicle can be realized. While the left traction motor 3a and the right traction motor 3b operate simultaneously and the steering is reversed, the track vehicle can achieve in-situ steering.
When the first left clutch 9a, the first right clutch 9b, the second left clutch 10a, the second right clutch 10b and the third clutch 11 are all closed, the power output by the engine 1 and the power output by the speed regulating motor group are subjected to rotational speed coupling at the rotational speed coupling device 5, and are subjected to torque coupling with the power output by the traction motor group at the torque coupling device 6, and finally are output to the left axle 7 and the right axle 8, and at the moment, the traction motor group can realize free radius steering of the crawler vehicle by outputting different rotational speeds.
The embodiment of the invention also provides a differential gearbox of the crawler-type vehicle, which comprises the power coupling device.
The examples are preferred embodiments of the present invention, but the present invention is not limited to the above-described embodiments, and any obvious modifications, substitutions or variations that can be made by one skilled in the art without departing from the spirit of the present invention are within the scope of the present invention.
Claims (6)
1. A power coupling device of crawler-type differential forward and reverse rotation, applied to a crawler-type vehicle, the crawler-type vehicle including a left axle (7) and a right axle (8), characterized in that the power coupling device includes: an engine (1), a speed regulating motor group, a traction motor group, a mechanical speed change mechanism (4), a rotating speed coupling device (5), a torque coupling device (6), a first left clutch (9 a), a first right clutch (9 b), a second left clutch (10 a), a second right clutch (10 b) and a third clutch (11);
the third clutch (11) is arranged between an output shaft of the engine (1) and an input end of the mechanical speed change mechanism (4);
The rotating speed coupling device (5) comprises a central transmission gear (5-2), a left rotating speed coupling component (5-1) and a right rotating speed coupling component (5-3), wherein the left rotating speed coupling component (5-1) and the right rotating speed coupling component (5-3) are the same and are planetary gear mechanisms, sun gears in the left rotating speed coupling component (5-1) and the right rotating speed coupling component (5-3) are respectively arranged at two ends of a gear shaft of the central transmission gear (5-2), and an output end of the mechanical speed change mechanism (4) is in transmission connection with the central transmission gear (5-2);
The speed regulating motor group comprises a left speed regulating motor (2 a) and a right speed regulating motor (2 b), the left speed regulating motor (2 a) is in transmission connection with a gear ring in the left rotating speed coupling assembly (5-1), and the right speed regulating motor (2 b) is in transmission connection with the gear ring in the right rotating speed coupling assembly (5-3);
the torque coupling device (6) comprises a left torque coupling component (6-1) and a right torque coupling component (6-2) which are the same, the left torque coupling component (6-1) is a two-shaft type gear transmission mechanism and comprises two input ends and one output end, the output end of the left torque coupling component (6-1) is in transmission connection with a left axle (7), and the output end of the right torque coupling component (6-2) is in transmission connection with a right axle (8);
The first left clutch (9 a) is arranged between the first input end of the left torque coupling component (6-1) and the output end of the left rotating speed coupling component (5-1), and the first right clutch (9 b) is arranged between the first input end of the right torque coupling component (6-2) and the output end of the right rotating speed coupling component (5-3);
The traction motor group comprises a left traction motor (3 a) and a right traction motor (3 b), the second left clutch (10 a) is arranged between the second input end of the left side torque coupling assembly (6-1) and the left traction motor (3 a), and the second right clutch (10 b) is arranged between the second input end of the right side torque coupling assembly (6-2) and the right traction motor (3 b);
Under the in-situ steering working condition, the first left clutch (9 a), the first right clutch (9 b) and the third clutch (11) are all disconnected, the second left clutch (10 a) and the second right clutch (10 b) are closed, and the left traction motor (3 a) and the right traction motor (3 b) work simultaneously and rotate reversely, so that the speeds of the output of the tracks on the left side and the right side are the same and the directions are opposite;
Under the free radius steering working condition, the first left clutch (9 a), the first right clutch (9 b), the third clutch (11), the second left clutch (10 a) and the second right clutch (10 b) are all closed, power output by the engine (1) and power output by the left speed regulating motor (2 a) and the right speed regulating motor (2 b) are subjected to rotational speed coupling at a rotational speed coupling device (5), and torque coupling with power output by the left traction motor (3 a) and the right traction motor (3 b) at a torque coupling device (6), and finally output to the left axle (7) and the right axle (8), the left traction motor (3 a) and the right traction motor (3 b) output different rotational speeds, so that differential speed is realized by the left crawler belt and the right crawler belt, and the crawler belt type vehicle is driven to carry out free radius steering.
2. The crawler-type differential forward and reverse power coupling device according to claim 1, wherein the left-side rotational speed coupling assembly (5-1) comprises a sun gear (5-1-1), a planet gear (5-1-2), a planet carrier (5-1-3), a gear ring (5-1-4) and a rotational speed coupling output gear (5-1-5), wherein a plurality of planet gears (5-1-2) uniformly distributed on the planet carrier (5-1-3) are respectively meshed with the sun gear (5-1-1) and the gear ring (5-1-4), the rotational speed coupling output gear (5-1-5) is meshed with the gear ring (5-1-4), and the rotational speed coupling output gear (5-1-5) is connected with the first left clutch (9 a).
3. The crawler differential forward and reverse power coupling device according to claim 1, wherein the left side torque coupling assembly (6-1) comprises a transmission shaft (6-1-1), a first torque coupling input shaft (6-1-2), a second torque coupling input shaft (6-1-3), a first input gear (6-1-4), a second input gear (6-1-5), a first transmission gear (6-1-6), a second transmission gear (6-1-7) and a torque coupling output gear (6-1-8);
The first input gear (6-1-4) is mounted on the first torque coupling input shaft (6-1-2), the second input gear (6-1-5) is mounted on the second torque coupling input shaft (6-1-3), the first transmission gear (6-1-6) and the second transmission gear (6-1-7) are both mounted on the transmission shaft (6-1-1), the torque coupling output gear (6-1-8) is mounted on the left axle (7), the first transmission gear (6-1-6) is meshed with the first input gear (6-1-4) and the second input gear (6-1-5), and the second transmission gear (6-1-7) is meshed with the torque coupling output gear (6-1-8).
4. The power coupling device of the crawler type differential forward and reverse rotation according to claim 1, wherein the mechanical speed change mechanism (4) comprises a low speed gear, a medium speed gear, a high speed gear, a speed change shaft and a shifting fork mechanism.
5. The crawler-type differential forward and reverse power coupling device according to claim 1, wherein the left speed motor (2 a), the right speed motor (2 b), the left traction motor (3 a) and the right traction motor (3 b) can be replaced with hydraulic motors.
6. A differential transmission comprising a power coupling device according to any one of claims 1-5.
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| CN201910569108.5A CN110370925B (en) | 2019-06-27 | 2019-06-27 | Crawler-type differential forward and reverse rotation power coupling device and gearbox |
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| CN201910569108.5A CN110370925B (en) | 2019-06-27 | 2019-06-27 | Crawler-type differential forward and reverse rotation power coupling device and gearbox |
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| CN110370925B true CN110370925B (en) | 2024-06-07 |
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| JPH09202258A (en) * | 1996-10-18 | 1997-08-05 | Yanmar Agricult Equip Co Ltd | Steering device for running work machine |
| US6336886B1 (en) * | 1997-05-14 | 2002-01-08 | Yanmar Agricultural Equipment Co. | Drive unit for crawler working vehicles |
| CN1378938A (en) * | 2001-03-29 | 2002-11-13 | 株式会社小松制作所 | Steering device of track vehicle |
| CN102514477A (en) * | 2011-12-27 | 2012-06-27 | 东北大学 | Planet coupled hybrid system for caterpillar and control method for same |
| CN106342040B (en) * | 2012-06-29 | 2014-12-03 | 中国北方车辆研究所 | A kind of electromechanical compound gearing for serial mixed power endless-track vehicle |
| CN102951005A (en) * | 2012-10-29 | 2013-03-06 | 同济大学 | Active drive device for hybrid electric vehicle capable of independently controlling power output of left wheel and right wheel |
| CN104442345A (en) * | 2014-11-11 | 2015-03-25 | 奇瑞汽车股份有限公司 | Series-parallel hybrid power automobile powertrain system and power distribution control method thereof |
| CN106853767A (en) * | 2016-12-16 | 2017-06-16 | 电子科技大学 | A kind of oil electricity flywheel hybrid electric drive system and driving method |
| CN106985655A (en) * | 2017-05-12 | 2017-07-28 | 株洲欧格瑞传动股份有限公司 | Many two grades of coupling speed change gears of power |
| CN109263719A (en) * | 2018-10-10 | 2019-01-25 | 北京理工大学 | A kind of device and method for driving endless-track vehicle to turn to |
| CN210363378U (en) * | 2019-06-27 | 2020-04-21 | 江苏大学 | Crawler-type differential forward and reverse rotating power coupling device and gearbox |
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| CN110370925A (en) | 2019-10-25 |
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