CN109572415A - One kind two keeps off hub reduction electricity and drives bridge - Google Patents
One kind two keeps off hub reduction electricity and drives bridge Download PDFInfo
- Publication number
- CN109572415A CN109572415A CN201811645666.7A CN201811645666A CN109572415A CN 109572415 A CN109572415 A CN 109572415A CN 201811645666 A CN201811645666 A CN 201811645666A CN 109572415 A CN109572415 A CN 109572415A
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- China
- Prior art keywords
- gear
- shifting
- semiaxis
- driving
- wheel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
- B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
-
- 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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
Hub reduction electricity is kept off the invention discloses one kind two and drives bridge, comprising: driving motor, shifting reducing, semiaxis, axle tube and planetary reduction gear；Shifting reducing has at least two gears, and the input shaft of shifting reducing and the main shaft drives of driving motor connect, and one end of output shaft and semiaxis is drivingly connected；Planetary reduction gear includes: the planetary gear mechanism being made of sun gear, planetary gear, gear ring and planet carrier, and the other end of sun gear and semiaxis is drivingly connected, and planet carrier is fixedly connected with wheel hub and tire；Axle tube is rotatably set in outside semiaxis, and one end of axle tube is fixedly connected with the shell of shifting reducing, and the other end of axle tube is fixedly connected with the gear ring of planetary reduction gear.Two above-mentioned gear hub reduction electricity drive bridge, adapt to the torque and speed demand under different operating conditions, improve the dynamic economics of vehicle, the cost of low driving motor.
Description
Technical field
The present invention relates to automobile wheel edge drive axle technical fields, and in particular to one kind two keeps off hub reduction electricity and drives bridge.
Background technique
To adapt to the economic needs of automobile industry energy-saving and emission-reduction and the strategic demand of blue sky defended war, new energy technology is in vapour
It is more and more applied in vehicle field.Driving motor, retarder, wheel are when the Integration Design waited becomes new-energy automobile wheel
The problem of drive axle design aspect growing interest.In the prior art, the common design scheme of Direct wheel drives bridge is: motor passes through tooth
Wheel decelerator transfers power to semiaxis, then power is finally transferred to wheel through taking turns side planetary gear speed reducing mechanism by semiaxis；Or
The Direct wheel drives bridge technology as disclosed in a kind of Chinese patent " Direct wheel drives bridge " of Publication No. CN102139628A takes turns side
Drive axle is made of two retarders and a driving motor, and driving method is the deceleration scheme of fixed speed ratio；These are common
Direct wheel drives bridge design, since retarder speed ratio is fixed, lead to the torque and speed of the variation not being able to satisfy under different operating conditions
Demand causes the dynamic economics of vehicle poor, and higher to motor performance requirement under fixed speed ratio environment, leads to motor cost
It is high.
Summary of the invention
In view of the above-mentioned problems, the present invention is directed to propose one kind two, which keeps off hub reduction electricity, drives bridge, to adapt under different operating conditions
Torque and speed demand improve the dynamic economics of vehicle, the cost of low driving motor.
One kind two keeps off hub reduction electricity and drives bridge, comprising: driving motor, shifting reducing, semiaxis, axle tube and planet subtract
Fast device；
The shifting reducing has at least two gears, the main shaft of the input shaft of shifting reducing and the driving motor
It is drivingly connected, one end of output shaft and the semiaxis is drivingly connected；
The planetary reduction gear includes: the planetary gear mechanism being made of sun gear, planetary gear, gear ring and planet carrier, institute
The other end for stating sun gear and the semiaxis is drivingly connected, and the planet carrier is fixedly connected with wheel hub and tire；
The axle tube is rotatably set in outside the semiaxis, one end of axle tube and the shifting reducing
Shell is fixedly connected, and the other end of axle tube is fixedly connected with the gear ring of planetary reduction gear.
Further, the shifting reducing includes: shell and is spindle rotationally arranged on shell and is parallel to each other defeated
Enter axis, jackshaft and output shaft, I gear driving gear is rotatably equipped on the input shaft and II keeps off driving gear, the I gear
Input shaft between driving gear and II gear driving gear is equipped with gear shifting actuating mechanism, and the gear shifting actuating mechanism is with input shaft
Rotation, and can be slided along input shaft to be connect with I gear driving gear or II gear driving gear；It is fixedly installed on the jackshaft
Driving gear is kept off with I respectively and II keeps off driving gear to the I gear driven gear and II gear driven gear engaged；On the output shaft
It is fixedly installed with output gear, the output gear keeps off driven gear with I or II gear driven gear is meshed.
Further, the I gear driving gear and II gear driving gear are mounted on the input shaft by needle bearing；
The gear shifting actuating mechanism passes through free-sliding spline and input axis connection.
Further, the gear shifting actuating mechanism include: be arranged in I gear driving gear and II gear driving gear between it is defeated
Enter the shift wheel on axis, the shift wheel is kept off with I on the opposite face of driving gear, and shift wheel and II keep off the opposite of driving gear
On face, it is provided with the key teeth being mutually adapted.
Further, the semiaxis is wholely set with output shaft.
Further, the mounting surface of the driving motor is fixed on the shell of the shifting reducing, driving motor master
The input shaft of axis and shifting reducing is connected by spline.
Further, the gear ring is fixedly connected by bracket with axle tube.
Further, the planet carrier subtracts shell by wheel and is fixedly connected with wheel hub and tire.
Further, what the wheel subtracted that shell can rotate coaxially is coated on except the planetary gear mechanism.
Further, pin shaft is provided on the planet carrier, the planetary gear is spindle rotationally arranged on the pin shaft.
Beneficial effects of the present invention:
1, by two pairs of pitch wheels and gear shifting actuating mechanism, changeable I gear and II is formed and keeps off two gears,
And then realize the switching of two speed ratios of hub reduction gear, it can effectively meet vehicle to the torque and speed need under different operating conditions
It asks, so that driving motor more works in economic section, improves the dynamic economics of vehicle；
2, the application of two speed ratios can cooperate the lesser driving motor of torque, effectively avoid fixed speed ratio in the prior art
The less problem of the optional type of the driving motor of Direct wheel drives bridge, driving motor is smaller, and weight is lighter, and drive can be effectively reduced
The cost of dynamic motor；
3, driving motor and reducer input shaft can be offset to below semiaxis, be left a blank in advance for the wheel such as wheel hub and braking side arrangement
Between it is structurally reasonable, increase wheel side arrangement space.
Detailed description of the invention
Fig. 1 is the transmission principle schematic diagram of the embodiment of the present invention；
Appended drawing reference: 1- driving motor, 2- shifting reducing, 21- shell, 22- input shaft, 23- jackshaft, 24- output
Axis, 25a-I keep off driving gear, and 25b-II keeps off driving gear, 26- gear shifting actuating mechanism, 261- shift wheel, 262- key teeth, 27a-I
Driven gear is kept off, 27b-II keeps off driven gear, 28- output gear, 3- semiaxis, 4- axle tube, 5- planetary reduction gear, 51- row
Star gear mechanism, 511- sun gear, 512- planetary gear, 513- gear ring, 514- planet carrier, 5141- pin shaft, 52- bracket, 53- wheel
Subtract shell.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.In the description of the present patent application, it is to be understood that term " on ", "lower", "front", "rear", "left", "right" etc., instruction
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the component of indication or suggestion meaning or structure must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
As shown in Figure 1, two gears hub reduction electricity provided in this embodiment drives bridge, comprising: driving motor 1, shifting reducing
2, semiaxis 3,3 casing 4 of semiaxis and planetary reduction gear 5.
Shifting reducing 2 has at least two gears, and the input shaft 23 of shifting reducing 2 and the main shaft of driving motor 1 drive
One end of dynamic connection, output shaft 24 and semiaxis 3 is drivingly connected, to make the tool of semiaxis 3, there are two the output speed ratios of gear.Specifically
, the shifting reducing 2 in the present embodiment includes: shell 21 and is spindle rotationally arranged in the input on shell 21 and being parallel to each other
Axis 23, jackshaft 23 and output shaft 24.
It is rotatably equipped with I gear driving gear 25a and II on input shaft 23 and keeps off driving gear 25b, can specifically pass through needle roller
Bearing is mounted on input shaft 23；The input shaft 23 that I is kept off between driving gear 25a and II gear driving gear 25b is equipped with shift
Executing agency 26, gear shifting actuating mechanism 26 can specifically be connect by free-sliding spline with input shaft 23, and gear shifting actuating mechanism 26 is enable
It rotates, and can be slided along input shaft 23 to be connect with I gear driving gear 25a or II gear driving gear 25b with input shaft 23.This reality
Apply the gear shifting actuating mechanism 26 in example, main body using a setting I gear driving gear 25a and II gear driving gear 25b it
Between input shaft 23 on shift wheel 261, shift wheel 261 and I gear driving gear 25a opposite face on, and shift wheel 261 and II
It keeps off on the opposite face of driving gear 25b, is provided with the key teeth 262 being mutually adapted.
It is fixedly installed on jackshaft 23 by modes such as splines and keeps off driving gear 25a and II gear driving gear with I respectively
25b keeps off driven gear 27b to the I of engagement gear driven gear 27a and II, to form two different transmission speed ratios.On output shaft 24
It is fixedly installed with output gear 28, output gear 28 is meshed with I gear driven gear 27a or II gear driven gear 27b.
In the present embodiment, each gear preferentially uses roller gear, and structure is simple, reliable transmission；The mounting surface of driving motor 1
It is fixed on the shell 21 of the close I gear side driven gear 27a of shifting reducing 2,1 main shaft of driving motor and shifting reducing
2 input shaft 23 is connected by spline；Simultaneously by output gear 28, output gear 28 is engaged with I gear driven gear 27a, and most
Well by semiaxis 3 is wholely set with output shaft 24, arranges more reasonable, compact, saving installation space.
The nuclear structure of planetary reduction gear 5 is one by sun gear 511, planetary gear 512, gear ring 513 and 514 groups of planet carrier
At planetary gear mechanism 51, sun gear 511 is drivingly connected by the other end of spline and semiaxis 3, and axle tube 4 is rotatable
Be set in outside semiaxis 3, and one end of axle tube 4 is fixedly connected with the shell 21 of shifting reducing 2, axle tube 4 it is another
End is fixedly connected with the gear ring 513 of planetary reduction gear 5, specifically bracket 52 can be arranged in one end of gear ring 513, and pass through bracket 52
It is fixedly connected with 3 casing 4 of semiaxis, shifting reducing 2 is fixedly connected with the outer housing of planetary reduction gear 5, effectively rotation is dynamic
Power.Planetary gear 512 is meshed with sun gear 511 and gear ring 513 respectively, and planetary gear 512 is spindle rotationally arranged in planet carrier 514
On pin shaft 5141, it is fixedly connected for mechanical planet carrier 514 with wheel hub and tire, to impart power to wheel hub；In the present embodiment,
In the periphery of planet carrier 514, setting wheel subtracts shell 53, and subtracts shell 53 by wheel and be fixedly connected with wheel hub and tire, and wheel subtracts shell 53 most
It is being coated on except planetary gear mechanism 51 of rotating coaxially well, structure is more compact, more saving installation space.Planetary gear
The specific fit structure of mechanism 51 is the well-known technique of machinery field, can be in mechanical design handbook, mechanical structure, machine driving etc.
It is found in publication, details are not described herein again.
Referring to Fig. 1, the shift process of above-mentioned shifting reducing 2 is as follows: (the specially shift wheel of gear shifting actuating mechanism 26
261) in neutral gear position, I gear driving gear 25a and II gear driving gear 25b dallies on reducer input shaft 22；It needs
I gear operation makes, and gear shifting actuating mechanism 26 is sliding to I gear driving gear 25a (for the left in the present embodiment Fig. 1) by free-sliding spline
Dynamic, until cooperating with the key teeth 262 on I gear driving gear 25a, II keeps off driving gear 25b in reducer input shaft at the same time
It dallies on 22；The power of driving motor 1 is transmitted to I gear driving gear 25a and I gear driven gear 27a by input shaft 22 at this time, moves
Power is delivered to the planetary reduction gear 5 for being arranged in wheel side by output gear 28 through semiaxis 13 again, is eventually transferred to tire.
When needing to be implemented gear shift operation progress II gear operation, by free-sliding spline, (II is kept off gear shifting actuating mechanism 26 to the right
The side driving gear 25b) it slides, gear shifting actuating mechanism 26 (shift wheel 261) keeps off the key teeth 261 on driving gear 25a with I first
It disengaging, I gear driving gear 25a dallies on reducer input shaft 22, and gear shifting actuating mechanism 26 continues Slideslip to the right, until with
The key teeth 261 that II is kept off on driving gear 25b is at a fully engaged, completes gear shift operation；The power of driving motor 1 is by input shaft 22 at this time
It is transmitted to II gear driving gear 25b and II gear driven gear 27b, power is passed to the I of idle running gear actively by jackshaft 23
The I of gear 25a engagement keeps off driven gear 27a, and power transmission line later is identical as aforementioned I gear, by output gear 28 through half
Axis 3 is transmitted to planetary reduction gear 5, is eventually transferred to tire.
Two gear hub reduction electricity using the above structure drive bridge, increase by two gear gear gearshifts, realize vehicle according to not
The function of switching over to two speed ratios is needed with operating condition, the use of above structure, which can reduce, wants the performance of driving motor
It asks, motor size and weight can be effectively reduced, reserve enough arrangement spaces to the wheel such as brake and wheel hub side, while making to drive
Dynamic motor more works between high efficient area, can effectively improve vehicle dynamical system economy.
It should be noted that preferred embodiment above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that: it is still
Can modify to technical solution documented by previous embodiment, or some or all of the technical features are carried out etc.
With replacement；And these are modified or replaceed, technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
Range should all cover within the scope of the claims and the description of the invention.
Claims (10)
1. one kind two keeps off hub reduction electricity and drives bridge characterized by comprising driving motor, shifting reducing, semiaxis, half-axile sleeve
Pipe and planetary reduction gear；
The shifting reducing has at least two gears, the main shaft drives of the input shaft of shifting reducing and the driving motor
One end of connection, output shaft and the semiaxis is drivingly connected；
The planetary reduction gear includes: the planetary gear mechanism being made of sun gear, planetary gear, gear ring and planet carrier, it is described too
Sun wheel and the other end of the semiaxis are drivingly connected, and the planet carrier is fixedly connected with wheel hub and tire；
The axle tube is rotatably set in outside the semiaxis, the shell of one end of axle tube and the shifting reducing
It is fixedly connected, the other end of axle tube is fixedly connected with the gear ring of planetary reduction gear.
2. two gears hub reduction electricity according to claim 1 drives bridge, which is characterized in that
The shifting reducing include: shell and be spindle rotationally arranged in the input shaft on shell and being parallel to each other, jackshaft and
Output shaft,
It is rotatably equipped with I gear driving gear on the input shaft and II keeps off driving gear, the I gear driving gear and II gear master
Input shaft between moving gear is equipped with gear shifting actuating mechanism, and the gear shifting actuating mechanism is rotated with input shaft, and can be along input
Axis sliding with I gear driving gear or II gear driving gear to connect；
It is fixedly installed on the jackshaft and keeps off driving gear and II gear driving gear with I respectively to the I gear driven gear engaged
Driven gear is kept off with II；
Output gear is fixedly installed on the output shaft, the output gear keeps off driven gear with I or II keeps off driven gear phase
Engagement.
3. two gears hub reduction electricity according to claim 2 drives bridge, which is characterized in that
The I gear driving gear and II gear driving gear are mounted on the input shaft by needle bearing；
The gear shifting actuating mechanism passes through free-sliding spline and input axis connection.
4. two gears hub reduction electricity according to claim 2 drives bridge, which is characterized in that
The gear shifting actuating mechanism includes: the shift on the input shaft being arranged between I gear driving gear and II gear driving gear
On the opposite face of wheel, the shift wheel and I gear driving gear, and shift wheel and II are kept off on the opposite face of driving gear, are respectively provided with
There is the key teeth being mutually adapted.
5. two gears hub reduction electricity according to claim 2 drives bridge, which is characterized in that
The semiaxis is wholely set with output shaft.
6. two gears hub reduction electricity according to claim 2 drives bridge, which is characterized in that
The mounting surface of the driving motor is fixed on the shell of the shifting reducing, driving motor main shaft and shifting reducing
Input shaft pass through spline connect.
7. two gears hub reduction electricity according to claim 1 drives bridge, which is characterized in that
The gear ring is fixedly connected by bracket with axle tube.
8. two gears hub reduction electricity according to claim 1 drives bridge, which is characterized in that
The planet carrier subtracts shell by wheel and is fixedly connected with wheel hub and tire.
9. two gears hub reduction electricity according to claim 8 drives bridge, which is characterized in that
What the wheel subtracted that shell can rotate coaxially is coated on except the planetary gear mechanism.
10. two gears hub reduction electricity according to claim 1 drives bridge, which is characterized in that
Pin shaft is provided on the planet carrier, the planetary gear is spindle rotationally arranged on the pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811645666.7A CN109572415A (en) | 2018-12-29 | 2018-12-29 | One kind two keeps off hub reduction electricity and drives bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811645666.7A CN109572415A (en) | 2018-12-29 | 2018-12-29 | One kind two keeps off hub reduction electricity and drives bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109572415A true CN109572415A (en) | 2019-04-05 |
Family
ID=65933661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811645666.7A Pending CN109572415A (en) | 2018-12-29 | 2018-12-29 | One kind two keeps off hub reduction electricity and drives bridge |
Country Status (1)
| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319162A (en) * | 2019-05-30 | 2019-10-11 | 北京理工大学 | A kind of bio-robot variable gear ratio high torque density dynamic unit |
| CN111114304A (en) * | 2020-01-20 | 2020-05-08 | 郑州宇通重工有限公司 | Vehicle, wheel-side power system and wheel-side speed reducer |
| CN113443012A (en) * | 2021-06-30 | 2021-09-28 | 北京航天发射技术研究所 | Chassis hybrid driving mechanism of extra-heavy special vehicle |
| DE102021200354A1 (en) | 2021-01-15 | 2022-07-21 | Zf Friedrichshafen Ag | Transmission and drive device for an at least partially electrically powered vehicle |
| CN115257332A (en) * | 2022-05-12 | 2022-11-01 | 杭州时代电动科技有限公司 | Distributed drive motor bridge for heavy commercial vehicle |
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| CN203756930U (en) * | 2014-01-28 | 2014-08-06 | 孙世广 | EV transmission with neutral gear |
| CN107035822A (en) * | 2017-06-02 | 2017-08-11 | 肇庆学院 | A kind of automatically controlled gearshift of electric car |
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| DE4434237A1 (en) * | 1994-09-24 | 1996-03-28 | Deere & Co | Vehicle axle with wheels powered by individual electric drives |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319162A (en) * | 2019-05-30 | 2019-10-11 | 北京理工大学 | A kind of bio-robot variable gear ratio high torque density dynamic unit |
| CN110319162B (en) * | 2019-05-30 | 2020-09-01 | 北京理工大学 | Variable-speed-ratio high-torque-density power unit for bionic robot |
| US11156271B2 (en) | 2019-05-30 | 2021-10-26 | Beijing Institute Of Technology | Power unit for bionic robot, robot joint, and robot |
| CN111114304A (en) * | 2020-01-20 | 2020-05-08 | 郑州宇通重工有限公司 | Vehicle, wheel-side power system and wheel-side speed reducer |
| CN111114304B (en) * | 2020-01-20 | 2021-01-08 | 郑州宇通重工有限公司 | Vehicle, wheel-side power system and wheel-side speed reducer |
| DE102021200354A1 (en) | 2021-01-15 | 2022-07-21 | Zf Friedrichshafen Ag | Transmission and drive device for an at least partially electrically powered vehicle |
| DE102021200354B4 (en) | 2021-01-15 | 2022-11-10 | Zf Friedrichshafen Ag | Transmission and drive device for an at least partially electrically powered vehicle |
| CN113443012A (en) * | 2021-06-30 | 2021-09-28 | 北京航天发射技术研究所 | Chassis hybrid driving mechanism of extra-heavy special vehicle |
| CN115257332A (en) * | 2022-05-12 | 2022-11-01 | 杭州时代电动科技有限公司 | Distributed drive motor bridge for heavy commercial vehicle |
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