CN101956803A - Electric vehicle speed reducer - Google Patents
Electric vehicle speed reducer Download PDFInfo
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- CN101956803A CN101956803A CN2010105000368A CN201010500036A CN101956803A CN 101956803 A CN101956803 A CN 101956803A CN 2010105000368 A CN2010105000368 A CN 2010105000368A CN 201010500036 A CN201010500036 A CN 201010500036A CN 101956803 A CN101956803 A CN 101956803A
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Abstract
The invention relates to an electric vehicle speed reducer which comprises an input shaft, an output shaft and a differential speed device, wherein an input shaft gear is rigidly connected to the input shaft, an output shaft first gear and an output shaft second gear are rigidly connected to the output shaft, a differential speed device gear is rigidly connected to the differential speed device, the input shaft gear is meshed with the output shaft first gear, and the output shaft second gear is meshed with the differential speed device gear. The electric vehicle speed reducer with the structure can satisfy all work conditions from low-speed large torque moment to high-speed running of an electric vehicle; has the advantages of simple structure, small part amount, and low production cost by adopting compact design and is convenient for manufacture and maintenance; meanwhile, because of lowering the size and the weight of a power assembly, the invention is beneficial to the enhancing of the transfer efficiency of the power assembly, the lowering of the noise of the power assembly, the increasing of a driving range of the electric vehicle and the applying of the electric vehicle to the small-sized vehicle field.
Description
Technical field
The present invention relates to the vehicle drive system field, particularly the transmission system of electric automobile field specifically is meant a kind of electric vehicle retarder.
Background technique
Electric vehicle because possess that noise is little, zero-emission, comfortable advantage such as clean, be automobile realize automation, intelligent development must be through approach.Present global oil use amount just constantly rises, and the oil allowable exploitation reduces day by day, so electric vehicle replaces the inexorable trend that conventional fuel-engined vehicle is an automobile industry development.
At present electric vehicle especially the deceleration of pure electric automobile increase and turn round mechanism and mainly adopt conventional automotive transmission transformation or 2-3 shelves gearbox.Because shortcomings such as the applying working condition and the pure electric automobile of conventional automobile have very big difference, will be used for after the conventional automotive transmission transformation that geneogenous deficiency is arranged on the pure electric automobile, and be low as bearing life, that Sealing Performance of Oil Seal is poor, noise is big.2-3 shelves gearbox is mainly used in the vehicle that applying working condition differs greatly, and in compact car, because drive motor itself possesses speed-regulating function, the speed-regulating function of gearbox and gearbox gear-shift function repeat, and have increased manufacture cost, cause waste.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, a kind of all operating modes that can satisfy the pure electric automobile low-speed big to high speed operation are provided, possesses parking system, promote the car load Safety performance, and the employing compact design, simple in structure, number of spare parts is less, be convenient to make maintenance, and electric vehicle retarder with low cost.
In order to realize above-mentioned purpose, electric vehicle retarder of the present invention has following formation:
This electric vehicle retarder comprises input shaft, output shaft and differential mechanism, input shaft gear has been rigidly connected on the described input shaft, output shaft first gear and output shaft second gear have been rigidly connected on the described output shaft, the differential mechanism gear has been rigidly connected on the described differential mechanism, described input shaft gear and described output shaft first gear engagement, described output shaft second gear and described differential mechanism gear engagement.
In this electric vehicle retarder, described differential mechanism comprises two power output semiaxis that are arranged at symmetrical position.
In this electric vehicle retarder, the link position of described input shaft gear and described input shaft is the position of close power intake on the input shaft.
In this electric vehicle retarder, the link position of described output shaft first gear and described output shaft be on the output shaft near the position of power intake, the link position of described output shaft second gear and described output shaft is away from the position of power intake on the output shaft.
In this electric vehicle retarder, the link position of described differential mechanism gear and described differential mechanism is away from the position of power intake on the differential mechanism.
In this electric vehicle retarder, described electric vehicle retarder also comprises parking device, described parking device comprises the halting mechanism that is arranged at the retarder shell and the described input dog end that is rigidly connected, and described halting mechanism is controlled the motion of input shaft by kayser or release ratchet.The link position of described ratchet and described input shaft is away from the position of power intake on the described input shaft.Described halting mechanism is arranged at the other end relative with power intake on the retarder shell.
Adopted the electric vehicle retarder of this invention can satisfy electric vehicle all operating modes from the low-speed big to the high speed operation, because it has adopted compact design, it is simple in structure, and number of spare parts is less, be convenient to make and maintenance, and cost of production is lower.Simultaneously,, help improving the transmission efficiency of power assembly, lower the noise of power assembly, increase the continual mileage of electric vehicle, help the application of electric vehicle in the compact car field owing to reduced the size and the weight of power assembly.In addition, because electric vehicle retarder of the present invention possesses parking system, the car load Security of electric vehicle is improved significantly.
Description of drawings
Fig. 1 is the structural representation of electric vehicle retarder of the present invention.
Fig. 2 is the profile schematic representation of electric vehicle retarder of the present invention.
Embodiment
In order more to be expressly understood technology contents of the present invention, describe in detail especially exemplified by following examples.
See also shown in Figure 1ly, be the structural representation of a kind of mode of execution of electric vehicle retarder of the present invention.This electric vehicle retarder comprises input shaft 1, output shaft 2 and differential mechanism 3, input shaft gear 11 has been rigidly connected on the described input shaft 1, output shaft first gear 21 and output shaft second gear 22 have been rigidly connected on the described output shaft 2, differential mechanism gear 31 has been rigidly connected on the described differential mechanism 3, described input shaft gear 11 and 21 engagements of described output shaft first gear, described output shaft second gear 22 and described differential mechanism gear 31 engagements, described differential mechanism 3 comprise two power output semiaxis that are arranged at symmetrical position.
In a kind of more preferably mode of execution, described input shaft gear 11 is the position of close power intake on the input shaft 1 with the link position of described input shaft 1, described output shaft first gear 21 is the position of close power intake on the output shaft 2 with the link position of described output shaft 2, the link position of described output shaft second gear 22 and described output shaft 2 be on the output shaft 2 away from the position of power intake, the link position of described differential mechanism gear 31 and described differential mechanism 3 is away from the position of power intake on the differential mechanism 3.
A kind of preferred embodiment in, described electric vehicle retarder also comprises parking device, described parking device comprises the halting mechanism 4 (as shown in Figure 2) that is arranged at the retarder shell and the ratchet 12 (as shown in fig. 1) of the described input shaft 1 that is rigidly connected, and described halting mechanism 4 is controlled the motion of input shaft 1 by kayser or release ratchet 12.
In a kind of preferred mode of execution, the link position of described ratchet 12 and described input shaft 1 is away from the position of power intake on the described input shaft 1.Described halting mechanism 4 is arranged at the other end relative with power intake on the retarder shell.
In practical application of the present invention, the electric vehicle retarder comprises on an input shaft 1, output shaft 2, differential assembly 3, input shaft 1 and the output shaft 2 having a pair of gear (gear 11 and gear 21) that can be meshed, has a pair of gear (gear 22 and gear 31) that can be meshed on output shaft 2 and the differential mechanism 3, its middle gear 11 is rigidly connected with input shaft 1, gear 21 and gear 22 are rigidly connected with output shaft 2 respectively, and gear 31 is rigidly connected with differential assembly 3.Halting mechanism 4 is installed on the reducer shell, fixes and release by 12 pairs of retarders of ratchet that fixing reconciliation lock is positioned on the input shaft 1, so that the fixing and release of control car load driving wheel, reach the Parking purpose, improve the car load Safety performance.
As shown in Figure 1, transmission system power is directly outputed to the input shaft 1 that effectively is connected with drive motor by drive motor, input shaft 1 by constant mesh gear pair (gear 11 and gear 21) with transmission of power to output shaft 2, output shaft 2 by constant mesh gear pair (gear 22 and gear 31) with transmission of power to differential mechanism 3, differential mechanism 3 by the left and right driving semiaxis with transmission of power to driving wheel.
In Fig. 1, before with power intake being, then the arrangement of gears mode on the input shaft 1 is: gear 12 is arranged in the rear end of gear 11; Arrangement of gears mode on the output shaft 2 is: gear 22 is arranged in the rear end of gear 21; Arrangement of gears mode on the differential mechanism 3 is: gear 3 is arranged in the rear end of differential mechanism 3.Adopt above-mentioned arrangement to make the size and the weight optimization of retarder.
As shown in Figure 2, parking device arranges and the retarder rear end that this arrangement makes that halting mechanism 4 and ratchet 12 are nearest, thereby has reduced number of components and parts, and makes design of part more simple.When halting mechanism 4 with ratchet 12 fixedly the time, vehicle is in the Parking state, vehicle can't advance or retreat this moment; And when halting mechanism 4 not during fixed ratchet wheel 12, vehicle is in released state, and vehicle can advance or retreat this moment.
Adopted electric vehicle retarder of the present invention can satisfy electric vehicle all operating modes from the low-speed big to the high speed operation, owing to adopted compact design, this electric vehicle reducer structure is simple, and number of spare parts is less, be convenient to make and maintenance, and cost of production is lower.Simultaneously,, help improving the transmission efficiency of power assembly, lower the noise of power assembly, increase the continual mileage of electric vehicle, help the application of electric vehicle in the compact car field owing to reduced the size and the weight of power assembly.In addition, because electric vehicle retarder of the present invention possesses parking system, the car load Security of electric vehicle is improved significantly.
In this specification, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (8)
1. electric vehicle retarder, it is characterized in that, described retarder comprises input shaft, output shaft and differential mechanism, input shaft gear has been rigidly connected on the described input shaft, output shaft first gear and output shaft second gear have been rigidly connected on the described output shaft, the differential mechanism gear that has been rigidly connected on the described differential mechanism, described input shaft gear and described output shaft first gear engagement, described output shaft second gear and described differential mechanism gear engagement.
2. electric vehicle retarder according to claim 1 is characterized in that, described differential mechanism comprises two power output semiaxis that are arranged at symmetrical position.
3. electric vehicle retarder according to claim 1 is characterized in that, the link position of described input shaft gear and described input shaft is the position of close power intake on the input shaft.
4. electric vehicle retarder according to claim 1, it is characterized in that, the link position of described output shaft first gear and described output shaft be on the output shaft near the position of power intake, the link position of described output shaft second gear and described output shaft is away from the position of power intake on the output shaft.
5. electric vehicle retarder according to claim 1 is characterized in that, the link position of described differential mechanism gear and described differential mechanism is away from the position of power intake on the differential mechanism.
6. according to each described electric vehicle retarder in the claim 1 to 5, it is characterized in that, described electric vehicle retarder also comprises parking device, described parking device comprises the halting mechanism that is arranged at the retarder shell and the described input dog end that is rigidly connected, and described halting mechanism is controlled the motion of input shaft by kayser or release ratchet.
7. electric vehicle retarder according to claim 6 is characterized in that, the link position of described ratchet and described input shaft is away from the position of power intake on the described input shaft.
8. electric vehicle retarder according to claim 7 is characterized in that described halting mechanism is arranged at the other end relative with power intake on the retarder shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105000368A CN101956803A (en) | 2010-10-08 | 2010-10-08 | Electric vehicle speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105000368A CN101956803A (en) | 2010-10-08 | 2010-10-08 | Electric vehicle speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101956803A true CN101956803A (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105000368A Pending CN101956803A (en) | 2010-10-08 | 2010-10-08 | Electric vehicle speed reducer |
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| Country | Link |
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| CN (1) | CN101956803A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329098A (en) * | 2015-10-30 | 2016-02-17 | 简式国际汽车设计（北京）有限公司 | Speed reducer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201120843Y (en) * | 2007-11-27 | 2008-09-24 | 贵州航天红光机械制造有限公司 | Drive axle apparatus of electric car |
| CN101380892A (en) * | 2008-10-14 | 2009-03-11 | 山东时风（集团）有限责任公司 | Drive system of electric motor vehicle |
| CN201415615Y (en) * | 2009-05-11 | 2010-03-03 | 奇瑞汽车股份有限公司 | Powertrain of electrocar |
| CN101746374A (en) * | 2010-01-08 | 2010-06-23 | 上海中科深江电动车辆有限公司 | Control method and control system of electronic-control mechanical type automatic transmission of pure electric vehicle |
| CN201568531U (en) * | 2009-12-24 | 2010-09-01 | 盐城中马汽车零部件有限公司 | Speed reducer assembly for electric car |
-
2010
- 2010-10-08 CN CN2010105000368A patent/CN101956803A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201120843Y (en) * | 2007-11-27 | 2008-09-24 | 贵州航天红光机械制造有限公司 | Drive axle apparatus of electric car |
| CN101380892A (en) * | 2008-10-14 | 2009-03-11 | 山东时风（集团）有限责任公司 | Drive system of electric motor vehicle |
| CN201415615Y (en) * | 2009-05-11 | 2010-03-03 | 奇瑞汽车股份有限公司 | Powertrain of electrocar |
| CN201568531U (en) * | 2009-12-24 | 2010-09-01 | 盐城中马汽车零部件有限公司 | Speed reducer assembly for electric car |
| CN101746374A (en) * | 2010-01-08 | 2010-06-23 | 上海中科深江电动车辆有限公司 | Control method and control system of electronic-control mechanical type automatic transmission of pure electric vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329098A (en) * | 2015-10-30 | 2016-02-17 | 简式国际汽车设计（北京）有限公司 | Speed reducer |
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Application publication date: 20110126 |