CN208664960U - A kind of New-energy electric vehicle rear-guard direct connection retarder - Google Patents

A kind of New-energy electric vehicle rear-guard direct connection retarder Download PDF

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Publication number
CN208664960U
CN208664960U CN201820747393.6U CN201820747393U CN208664960U CN 208664960 U CN208664960 U CN 208664960U CN 201820747393 U CN201820747393 U CN 201820747393U CN 208664960 U CN208664960 U CN 208664960U
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China
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gear
reducer shell
retarder
electric vehicle
differential assembly
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CN201820747393.6U
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Chinese (zh)
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金建华
黄秀
钟浩
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Zhejiang Xin Can Pml Precision Mechanism Ltd
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Zhejiang Xin Can Pml Precision Mechanism Ltd
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Abstract

The utility model discloses a kind of New-energy electric vehicle rear-guard direct connection retarders, belong to New-energy electric vehicle retarder technical field, driving motor for electric automobile can be matched and move all operating conditions of row from low speed to high speed, it is complicated difficult to solve existing reducer structure assembly, maintenance is inconvenient, and it is excessive to also solve noise, serious wear, the problems such as lubrication is insufficient, and the service life is short.This retarder includes reducer shell, power input module, intermediate transmission component and differential assembly;The intermediate transmission component, power input module are successively packed into reducer shell from right side;The differential assembly is packed into reducer shell from downside, and the retarder and rear axle casing of electric vehicle and left and right half direct connection of formation assemble;The utility model has many advantages, such as that structure is simple, transmission efficiency is high, assembles, is easy to maintain and low in cost.

Description

A kind of New-energy electric vehicle rear-guard direct connection retarder
Technical field
The present invention relates to retarder technical field is driven after new-energy automobile, direct connection is driven after refering in particular to New-energy electric vehicle Retarder.
Background technique
As national new-energy automobile strategy is promoted and is implemented, new-energy automobile market has welcome high-speed development period.New energy The power characteristic of source electric car driving motor determines that orthodox car gearbox is not suitable for New-energy electric vehicle function and needs It asks;The small, zero-emission for noise of the main advantage of electric car, the main mechanical driving part of electric car -- retarder is made an uproar for reduction thus Sound improves the key that continuation of the journey range is electric vehicle speed reducer to greatest extent, with the rapid development of new-energy automobile market, Occur more and more electric vehicle speed reducers in the market, portioned product exist such as insufficient lubrication, noise is bigger than normal, structure is complicated, Efficiency is relatively low, and assembly difficulty, maintenance inconvenience etc. are more bad need to improve place.
Summary of the invention
It is an object of the present invention to provide a kind of New-energy electric vehicle direct connection retarders, can match driving motor for electric automobile All operating conditions are run from low speed to high speed, solve the existing complicated difficulty of reducer structure assembly, maintenance is inconvenient, and also solves The problems such as noise is excessive, serious wear, and lubrication is insufficient, and the service life is short, obtains that structure is simple, transmission efficiency is high, assembly, dimension Protect convenient, low-cost effect.
The specific technical solution of the present invention is as follows: a kind of New-energy electric vehicle rear-guard direct connection retarder, the retarder packet Reducer shell is included, the reducer shell is using vehicle rear-axle housing as part of it seal casinghousing structure;With the rear axle housing The left part for the reducer shell being connected is equipped with motor fixing plate, and the motor fixing plate subtracts described in driving motor for fixing The right part of fast device shell is equipped with right cap for sealing and fixing bearing;Be equipped in reducing gearbox body power input module, Intermediate transmission component, differential assembly;The power input module includes input shaft, and the both ends of the input shaft are furnished with bearing, The left side of the input shaft is equipped with sealing ring, left side bearing and sealing ring on reducer shell, and right-hand axis is housed in described In right cap;The intermediate transmission component includes intermediate gear shaft, and the intermediate gear shaft both ends are furnished with bearing, and left-hand axis installs On the reducer shell, right-hand axis is housed in the right cap, and the right positions on the intermediate gear shaft are equipped with biography Pinion gear engaged transmission on moving gear, with the input shaft;The differential assembly includes that differential assembly, differential mechanism are total It is furnished with bearing at both ends, two side bearings are separately fixed on the reducer shell by left and right bearing gland, and differential assembly is right Side is equipped with the pinion gear engaged transmission in the leftward position on differential mechanism gear ring, with the intermediate gear shaft;The intermediate biography Dynamic component, power input module are successively packed into the reducer shell from right side, then assemble the right cap;The differential mechanism Component is packed into reducer shell on the downside of the reducer shell, then assembles the left and right bearing gland, the retarder of formation It is assembled with vehicle rear-axle housing and left and right half direct connection;Power is from the input shaft deceleration transmission to transmission gear, then through center tooth Wheel shaft deceleration transmission to differential mechanism gear ring, differential mechanism gear ring reaches differential assembly, by differential assembly middle left and right axle shaft gear Output power;Wherein, using the rear axle housing as a part of reducer shell sealing structure, with reducer shell right cap And rear axle of electric automobile left and right half oil sealing, complete sealing space is constituted, this sealing space is as gear reducer lube pond; Wherein, the pinion gear on the input shaft of the high-speed side of the retarder of connection driving motor and described in engaging The transmission gear on intermediate gear shaft is all made of helical teeth wheel construction;Wherein, the low speed side of the retarder it is described in Between pinion gear on gear shaft and the differential mechanism gear ring engaged on the differential assembly of transmission be all made of straight-tooth Wheel is constituted.
It is preferred that the transmission gear diameter is greater than the input shaft diameter, the differential mechanism diameter ring gear is greater than in described Between gear shaft diameter.It is preferred that the plane that the center line of the power input module, intermediate transmission component is formed, with the centre Transmission component, the plane that the center line of differential assembly is formed are perpendicular.
It is preferred that further including the driving motor for driving rear-guard direct connection retarder, driving electricity in the New-energy electric vehicle Machine is connected to include the accumulating system as electric storage means via inverter;It further include operation dress in above-mentioned New-energy electric vehicle It sets, operating device includes control stick, pedal;It further include controller, controller is instructed according to the operating device of driver and inside Control logic, carries out electric operation or the generator operation control of driving motor, and then carries out the charge and discharge control of electrical storage device.
It is preferred that pinion gear on the input shaft of the high-speed side of the retarder of connection driving motor and engaging The transmission gear on the intermediate gear shaft is all made of double helical spurgear composition.
It is preferred that be a part of retarder seal casinghousing using rear axle housing, the reducer shell right side being connected with rear axle housing Right cap and New-energy electric vehicle rear axle left and right half oil sealing, constitute complete sealing space, this sealing space is as subtracting Fast device lubricating oil bath, oil sump capacity is big, good heat dissipation, not only reduces amount of parts and retarder components are sufficiently moistened It is sliding, cooling.
This New-energy electric vehicle rear-guard direct connection retarder is prominent and beneficial compared with prior art to be had the technical effect that
This New-energy electric vehicle rear-guard direct connection reduction case uses split type structure, so that power input shaft group Part, intermediate transmission component can successively be packed into reducer shell from right side, and differential assembly can be packed into reducer shell, dress from downside With simple, maintain easily.
This New-energy electric vehicle rear-guard direct connection retarder amount of parts is few, such as utilizes automobile axle left and right half oil Envelope, a part that vehicle rear-axle housing is retarder seal casinghousing, constitute complete sealing space, and reducer structure becomes simply, Reduce vehicle manufacturing cost.
This New-energy electric vehicle rear-guard direct connection gear reducer lube tankage is big, radiating condition is good, retarder components It is able to sufficient lubrication, cooling, friction is advantageously reduced, reduces noise, improves efficiency and the elongated component service life.This new energy vapour High-strength aluminum alloy die casting can be used in vehicle rear-guard direct connection reducer shell, motor fixing plate, right side cover board and bearing gland, outside Side surface needs to increase corresponding reinforcing rib according to intensity, reduces the weight and outer dimension of part to greatest extent, is conducive to Improve the transmission efficiency and course continuation mileage of electric car.
Power input module described in this New-energy electric vehicle rear-guard direct connection retarder, the center of intermediate transmission component are linear At plane, the plane formed with the center line of the intermediate transmission component, differential assembly is perpendicular.It not only contributes in this way Space layout is saved, also helping reduces vehicle center of gravity and drive system center of gravity, improves whole vehicle stability and also helps contracting simultaneously Small driving motor reduces automobile bumpiness and turns round when driving to the swing of the drive system including driving motor apart from rear axle distance Square and flutter failure.
This new-energy automobile rear-guard direct connection retarder using helical gear pair or double helical spurgear to and spur gear to mashed up, can So that high speed helical gear pair or double helical spurgear to collocation low speed spur gear to extraordinary beneficial effect is produced, that is, improve To noise, abrasion, the demand of equivalent life is lubricated, and effectively reduce difficulty of processing and manufacturing cost, brings very high warp Ji benefit has no the reducer in the above-mentioned mashed up New-energy electric vehicle in the application currently on the market.
This new-energy automobile rear-guard direct connection retarder can be widely used for New-energy electric vehicle, especially well-behaved use compact car non- The application in field.
Detailed description of the invention
Fig. 1 is half section structure diagram of the invention
Fig. 2 is assembling schematic diagram of the invention
In figure: 1 left axle pressure cap, 2 vehicle rear-axle housings, 3 reducer shells, 4 automobile axle left half axle oil sealings, 5 motors are solid Price fixing, 6 driving motors, 7 right caps, 8 input shafts, 9 intermediate gear shafts, 10 transmission gears, 11 differential mechanism gear rings, 12 differential mechanisms are total At, left single shaft gear in 13 differential assemblies, right uniaxial gear in 14 differential assemblies, 15 automobile axle right axle shaft oil sealings, 16 Right axle pressure cap.
Specific embodiment
In conjunction with attached drawing, with specific embodiment, the invention will be further described;
Referring to Fig. 1: a kind of New-energy electric vehicle rear-guard direct connection retarder, which includes reducer shell 3, this subtracts Fast device shell 3 is using vehicle rear-axle housing 2 as part of it seal casinghousing structure;The reducing gearbox being connected with the rear axle housing 2 The left part of body 3 is equipped with motor fixing plate 5, and the motor fixing plate 5 is for fixing driving motor 6;The reducer shell 3 Right part be equipped with right cap 7, for seal and fixing bearing;Power input module, intermediate biography are equipped in reducer shell 3 Dynamic component, differential assembly;The power input module includes input shaft 8, and the both ends of the input shaft 8 are furnished with bearing, described The left side of input shaft 8 is equipped with sealing ring, left side bearing and sealing ring on reducer shell 3, and right-hand axis is housed in the right side On side cover 7;The intermediate transmission component includes intermediate gear shaft 9, and 9 both ends of intermediate gear shaft are furnished with bearing, left side bearing On the reducer shell 3, right-hand axis is housed in the right cap 7, the right positions dress on the intermediate gear shaft 9 There is transmission gear 10, with the pinion gear engaged transmission on the input shaft 8;The differential assembly includes differential assembly 12,12 both ends of differential assembly are furnished with bearing, and two side bearings are separately fixed at the retarder by left and right bearing gland 1,16 It is equipped on shell 3, on the right side of differential assembly 12 in the leftward position on differential mechanism gear ring 11, with the intermediate gear shaft 9 Pinion gear engaged transmission;The intermediate transmission component, power input module are successively packed into the reducer shell 3 from right side, with After assemble the right cap 7;The differential assembly is packed into reducer shell on the downside of the reducer shell 3, then assembles The left and right bearing gland 1,16, the retarder and vehicle rear-axle housing and left and right half direct connection of formation assemble;Power is from described 8 deceleration transmission of input shaft is to transmission gear 10, then through 9 deceleration transmission of intermediate gear shaft to differential mechanism gear ring 11, differential mechanism gear ring 11 reach differential assembly 12, by 12 middle left and right axle shaft gear 13 of differential assembly, 14 output powers;Wherein, using after described The a part of axle housing 2 as reducer shell sealing structure, with reducer shell right cap and rear axle of electric automobile left and right half Oil sealing constitutes complete sealing space, this sealing space is as gear reducer lube pond.
Specific assembly and exploded pictorial referring to fig. 2, in above-mentioned New-energy electric vehicle direct connection retarder, after automobile The a part of axle housing 2 as retarder seal casinghousing, the right cap 7 and automobile on 3 right side of reducer shell being connected with rear axle housing Rear axle left and right half oil sealing 4,15, constitutes complete sealing space, this sealing space is held as gear reducer lube pond, oil sump Big, good heat dissipation is measured, amount of parts is not only reduced and retarder components is able to sufficient lubrication, cooling, advantageously reduce Friction reduces noise, improves efficiency and the elongated component service life.
In above-mentioned New-energy electric vehicle direct connection retarder, power is from input shaft deceleration transmission to transmission gear 10, warp 9 deceleration transmission of intermediate gear shaft to differential mechanism gear ring 11, differential mechanism gear ring 11 reaches differential assembly 12, through differential assembly 12 Middle left and right axle shaft gear 13,14 exports.In above-mentioned New-energy electric vehicle direct connection retarder, it is preferable that 10 diameter of transmission gear Greater than 8 diameter of input shaft, 11 diameter of differential mechanism gear ring is greater than intermediate gear shaft diameter 9.
In above-mentioned New-energy electric vehicle direct connection retarder, it is preferable that the power input module, intermediate transmission component The plane that center line is formed, the plane formed with the center line of the intermediate transmission component, differential assembly are perpendicular.So not Only be conducive to save space layout, also helping reduces vehicle center of gravity and drive system center of gravity, improves whole vehicle stability simultaneously also Be conducive to reduce driving motor apart from rear axle distance, reduce automobile bumpiness when driving to the drive system including driving motor Swing torque and flutter failure.
In addition, further including the driving motor 6 for driving rear-guard direct connection retarder, the driving in above-mentioned New-energy electric vehicle Motor 6 is connected to include the accumulating system (electrical storage device) as electric storage means via inverter.In addition, above-mentioned New energy electric It further include operating device in automobile, operating device includes control stick, pedal etc..It further include controller, controller is according to driver The operating device instruction that manipulation bar and pedal generate, carries out the drive control of driving motor 6.Controller is by being driven The operation control of dynamic motor, such as carries out electric drive operation or the switching of generator operation, the electric discharge or charging of Lai Jinhang electrical storage device Control.By reasonable effective logic control, the operational shock and friction, reduction that can be further reduced retarder components are made an uproar Sound improves efficiency and the elongated component service life.
In addition, as known to those skilled in the art, in order to obtain higher working efficiency, revolving speed needs reach driving motor Certain numerical value, and in order to obtain biggish torque, needs the deceleration torque increase of retarder, however, in general, well known speed is higher, Noise when gear drive between the gear teeth is bigger, and abrasion is more serious, and greasy property is bad, and in order to further to slow down Device components are able to sufficient lubrication, cooling, are further reduced between driving wheel tooth and rub, reduce and impact and reduce noise, improve Transmission efficiency and driver behavior sense extend part life, relatively high in speed and defeated with driving motor in present embodiment The transmission gear centering of the retarder input side of axis connection out, using the transmission gear pair being made of helical gear, it is preferred to use people The transmission gear pair that font gear is constituted, i.e. transmission gear between input shaft 8 and intermediate gear shaft 9 are to being all made of helical gear structure At, it is preferred to use double helical spurgear is constituted.This is because the gear teeth meshing rate of helical gear or double helical spurgear compares the straight-tooth gear teeth Height, gear teeth meshing stable and continuous is strong, therefore, generates impact and noise is relatively low, advantageously reduce and run at high speed When the unfavorable factor that generates.However, in the present embodiment, speed intermediate gear shaft 9 relatively low after being slowed down by gear mesh The gear mesh of engaged transmission is all made of spur gear composition between differential mechanism gear ring 11, due to compared to previous stage reduction gearing pair Rotary speed it is lower, engagement collision and noise level it is relatively low.And compared to helical gear and other forms gear, spur gear It is easily worked and manufactures, it is at low cost, it is controlled according further to the revolving speed of this retarder input driving motor, may make high speed helical gear To collocation low speed spur gear to extraordinary beneficial effect is produced, that is, improve to noise, abrasion, the need for lubricating equivalent life It asks, and effectively reduces difficulty of processing and manufacturing cost, bring very high economic benefit, have no currently on the market above-mentioned mixed It takes for the reducer in the New-energy electric vehicle in the application.
The design of examples detailed above for explaining only the invention, rather than the restriction to rights protection of the present invention, it is all using this this Design makes a non-material change to the present invention, and such as moves to left 8 gear of input shaft, intermediate gear shaft 9 and transmission gear 10 And differential assembly 12, differential mechanism gear ring 11 are arranged symmetrically another specific example of then this design, waiting is protection of the invention Range.

Claims (3)

1. a kind of New-energy electric vehicle rear-guard direct connection retarder, which includes reducer shell, reducer shell benefit Use vehicle rear-axle housing as part of it seal casinghousing structure;Set up separately the left side for the reducer shell being connected with the rear axle housing There is motor fixing plate, the motor fixing plate is for fixing driving motor;The right part of the reducer shell is equipped with right side Lid, for being equipped with power input module, intermediate transmission component, differential assembly in sealing and fixing bearing reducing gearbox body;Institute Stating power input module includes input shaft, and the both ends of the input shaft are furnished with bearing, and the left side of the input shaft is equipped with sealing ring, On reducer shell, right-hand axis is housed in the right cap for left side bearing and sealing ring;During intermediate transmission component includes Between gear shaft, the intermediate gear shaft both ends are furnished with bearing, and left-hand axis is housed on the reducer shell, and right-hand axis is housed in In the right cap, the right positions on the intermediate gear shaft are equipped with the pinion gear on transmission gear, with the input shaft Engaged transmission;The differential assembly includes differential assembly, differential assembly both ends equipped with bearing, and two side bearings are by left and right Bearing gland is separately fixed on the reducer shell, differential mechanism gear ring is equipped on the right side of differential assembly, with the centre Pinion gear engaged transmission in leftward position on gear shaft;The intermediate transmission component, power input module are successive from right side It is packed into the reducer shell, then assembles the right cap;The differential assembly is packed on the downside of the reducer shell Reducer shell then assembles the left and right bearing gland, the retarder and vehicle rear-axle housing and left and right half direct connection of formation Assembly;Power is from the input shaft deceleration transmission to transmission gear, poor then through intermediate gear shaft deceleration transmission to differential mechanism gear ring Fast device gear ring reaches differential assembly, by differential assembly middle left and right axle shaft gear output power;Wherein, the rear axle is utilized The a part of shell as reducer shell sealing structure, with reducer shell right cap and rear axle of electric automobile left and right half oil Envelope, constitutes complete sealing space, this sealing space is as gear reducer lube pond;Wherein, it is connecting described in driving motor The driving cog in pinion gear on the input shaft of the high-speed side of retarder and the intermediate gear shaft engaged Wheel is all made of helical teeth wheel construction;Wherein, the pinion gear on the intermediate gear shaft of the low speed side of the retarder and and its The differential mechanism gear ring 11 on the differential assembly of engaged transmission is all made of spur gear composition;Wherein, the power is defeated Enter component, the plane that the center line of intermediate transmission component is formed, it is linear with the intermediate transmission component, the center of differential assembly At plane it is perpendicular;It further include the driving motor for driving rear-guard direct connection retarder, the driving in the New-energy electric vehicle Motor is connected to include the accumulating system as electric storage means via inverter;It further include operation in above-mentioned New-energy electric vehicle Device, operating device include control stick, pedal;It further include controller, controller is produced according to driver's manipulation bar and pedal Raw operating device instruction, controls electric drive operation or the generator operation of driving motor, so carry out electrical storage device electric discharge and Charge control.
2. New-energy electric vehicle rear-guard direct connection retarder according to claim 1, it is characterised in that: in connection driving electricity The driving cog in pinion gear on the input shaft of the high-speed side of the retarder of machine and the intermediate gear shaft engaged Wheel is all made of double helical spurgear composition.
3. New-energy electric vehicle rear-guard direct connection retarder according to claim 1, it is characterised in that: the transmission gear Diameter is greater than the input shaft diameter, and the differential mechanism diameter ring gear is greater than the intermediate gear shaft diameter.
CN201820747393.6U 2018-05-19 2018-05-19 A kind of New-energy electric vehicle rear-guard direct connection retarder Active CN208664960U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108437787A (en) * 2018-05-19 2018-08-24 浙江鑫可精密机械有限公司 A kind of New-energy electric vehicle rear-guard direct connection retarder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108437787A (en) * 2018-05-19 2018-08-24 浙江鑫可精密机械有限公司 A kind of New-energy electric vehicle rear-guard direct connection retarder
CN108437787B (en) * 2018-05-19 2023-09-15 浙江鑫可传动科技有限公司 New energy electric automobile rear-drive direct-connection speed reducer

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