CN204870561U - Planetary gear drive formula rear axle assembly - Google Patents

Planetary gear drive formula rear axle assembly Download PDF

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Publication number
CN204870561U
CN204870561U CN201520493429.9U CN201520493429U CN204870561U CN 204870561 U CN204870561 U CN 204870561U CN 201520493429 U CN201520493429 U CN 201520493429U CN 204870561 U CN204870561 U CN 204870561U
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China
Prior art keywords
gear
driving
shaft
differential
axle assembly
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CN201520493429.9U
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Chinese (zh)
Inventor
王吉龙
赵钢
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Chongqing Longwang Electromechanical Co Ltd
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Chongqing Longwang Electromechanical Co Ltd
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Abstract

The utility model discloses a planetary gear drive formula rear axle assembly, including left bridge tube, right bridge tube, first input end, second input, planetary gear set spare, derailleur and output differential mechanism, first input end and second input respectively the transmission connect in the sun gear of planetary gear set spare and outer ring gear and the planet carrier through planetary gear set spare transmit power extremely in proper order derailleur and output differential mechanism, consequently, the utility model discloses a planetary gear drive formula rear axle assembly can use two power device as power, and simultaneously, it is poor to have the rotational speed between two power device output shafts to increase substantially the dynamic performance of electric motor car.

Description

Planet gear drives formula back axle assembly
Technical field
The utility model relates to motor vehicle components field, specifically a kind of planet gear drives formula back axle assembly.
Background technology
Self-propelled vehicle is divided into battery-driven car (two-wheeled, three-wheel and electronlmobil) and take driving engine as the vehicle of power, battery-driven car is for power driven elec. vehicle travels with onboard power storage battery, because battery-driven car has the light feature of energy-saving and environmental protection, and operating costs is lower, more and more come into one's own.But, it is poor that power and output torque etc. due to electrical motor compare driving engine, for solving the problem of the under power of battery-driven car, more compact car adopts hybrid architecture, use gasoline driven and driven by power two kinds of type of drive vehicles only drive by engine installation before reaching certain speed, and utilize merely an engine installation as the pure electric vehicle of power, because its cost is higher, under power, is difficult to apply to the higher vehicle of the cost requirement such as two-wheeled, three-wheel.
Therefore, need one that two engine installations can be used as power, meanwhile, between two power plant output shaft, can speed discrepancy be there is, thus increase substantially the planet gear drives formula back axle assembly of the tractive performance of battery-driven car.
Utility model content
In view of this, the purpose of this utility model overcomes defect of the prior art, there is provided one that two engine installations can be used as power, simultaneously, can speed discrepancy be there is between two power plant output shaft, thus increase substantially the planet gear drives formula back axle assembly of the tractive performance of battery-driven car.
Planet gear drives formula back axle assembly of the present utility model, comprises left bridge tube, right bridge tube, first input end, the second input end, planetary gear set, change-speed box and output differential; Described first input end and the second input end are in transmission connection respectively in the sun wheel of described planetary gear set and external toothing and by the pinion carrier of planetary gear set, power are passed to described change-speed box and output differential successively; The left half axle of described output differential and right axle shaft respectively normal-running fit correspondence are supported in described left bridge tube and right bridge tube and output power to the revolver axle of vehicle and right wheel shaft;
Further, described planetary gear set is for driving diff; Described first input end and the second input end are in transmission connection respectively in the left half axle of described driving diff and right axle shaft and are outputed power by this driving diff.Further, the left half axle of described output differential and right axle shaft outer end are equipped with ball cage universal-joint and are in transmission connection by this ball cage universal-joint and vehicle revolver axle and right wheel shaft;
Further, described change-speed box comprises imput shaft and driven shaft, imput shaft is in transmission connection with driving diff mouth and imput shaft is combined with in the mode that can be rotated about axis and keeps off driving gear and keep off driving gear slowly soon, driven shaft upper driving be provided with keep off soon fast gear driven gear that driving gear engages and with the slow gear driven gear keeping off driving gear slowly and engage, imput shaft is combined with gear shift adapter in the mode of the circumferencial direction transmission that slides axially;
Further, described driving diff comprises driving differential casing and drives differential gear assembly, drives differential casing to be provided with power output gear integrated with it;
Further, the planet wheel spindle of described driving diff is through driving differential casing also by being fixed on driving differential casing radially across the set pin of planet wheel spindle;
Further, the axial two ends of described driving differential casing stretch out the support tube formed for the extension shaft part normal-running fit of the extension shaft part and right axle shaft gear with left half axle gear;
Further, driving differential bearing is provided with outside described support tube;
Further, described driving differential casing is one-piece construction and this driving differential casing is provided with for installing the installation via hole driving differential gear assembly;
Further, be provided with tween drive shaft between described driving diff and change-speed box, the intermediate gear that tween drive shaft upper driving is combined with deceleration driving gear and engages with power output gear, imput shaft upper driving is combined with the reduction driven gear engaged with deceleration driving gear.
The beneficial effects of the utility model are: planet gear drives formula back axle assembly of the present utility model, power is kept supplying by two engine installations simultaneously, planetary gear set is provided with between two power plant output shaft, this planetary gear set outputs power after the power combination of two engine installations, this planetary gear set can solve two nonsynchronous problems of power plant output shaft rotating speed, planetary gear set is by after the power combination of two engine installations, obtain different speed by change-speed box and close moment of torsion, and output power eventually through output differential, therefore, planet gear drives formula back axle assembly of the present utility model, two engine installations can be used to export as power simultaneously, and allow two power plant output shaft to there is speed discrepancy, thus improve horsepower output and the moment of torsion of elec. vehicle, finally increase substantially the tractive performance of pure electric vehicle, simultaneously, rear-axle drive assembly of the present utility model eliminates traditional rear axle structure, can be directly installed on vehicle hanging, enormously simplify the structure of vehicle drive system.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Fig. 1 is structural representation of the present utility model, and as shown in the figure, the planet gear drives formula back axle assembly of the present embodiment, comprises left bridge tube, right bridge tube, first input end, the second input end, planetary gear set, change-speed box and output differential 16, described first input end and the second input end are in transmission connection respectively in the sun wheel of described planetary gear set and external toothing and by the pinion carrier of planetary gear set, power are passed to described change-speed box and output differential 16 successively, the left half axle of described output differential 16 and right axle shaft respectively normal-running fit correspondence are supported in described left bridge tube and right bridge tube and output power to the revolver axle of vehicle and right wheel shaft, the rear-axle drive assembly of the present embodiment, vehicle power is kept supplying by two engine installations simultaneously, the planetary gear set be provided with between two power plant output shaft can output power after the power combination of two engine installations, this planetary gear set can solve two nonsynchronous problems of power plant output shaft rotating speed, planetary gear set is by after the power combination of two engine installations, obtain different speed by change-speed box and close moment of torsion, and output power eventually through output differential 16, therefore, planet gear drives formula back axle assembly of the present utility model, two engine installations can be used to export as power simultaneously, and allow two power plant output shaft to there is speed discrepancy, thus improve horsepower output and the moment of torsion of elec. vehicle, finally increase substantially the tractive performance of pure electric vehicle, simultaneously, the rear-axle drive assembly of the present embodiment eliminates traditional rear axle structure, can be directly installed on vehicle hanging, enormously simplify the structure of vehicle drive system.
In the present embodiment, described planetary gear set is for driving diff 5, power coupling is exported by this driving diff 5 by first input end and the second input end, drive diff 5 compact conformation reliable, larger load effect can be born, in the present embodiment, first input end and the second input end are in transmission connection respectively in the left half axle and the right axle shaft that drive diff 5, output power to vehicle drive system by diff 5 output gear.
In the present embodiment, the left half axle of described output differential 16 and right axle shaft outer end are equipped with universal-joint and are in transmission connection by this universal-joint and vehicle revolver axle and right wheel shaft, in the present embodiment, universal-joint adopts ball cage universal-joint, ball cage universal-joint is a kind of common constant-velocity universal joint, the left half axle of output differential 16 and right axle shaft are in transmission connection by this ball cage universal-joint and vehicle revolver axle and right wheel shaft, realize outputting power to revolver axle and right wheel shaft.
In the present embodiment, described change-speed box comprises imput shaft 13 and driven shaft 17, imput shaft 13 and driving diff mouth are in transmission connection and imput shaft 13 are combined with in the mode that can be rotated about axis and keep off driving gear 14 soon and keep off driving gear 20 slowly, driven shaft 17 upper driving be provided with keep off soon fast gear driven gear 15 that driving gear 14 engages and with the slow gear driven gear 18 keeping off driving gear 20 slowly and engage, imput shaft 13 is combined with gear shift adapter 19 in the mode of the circumferencial direction transmission that slides axially, imput shaft 13 by fast gear driving gear 14 with keep off soon driven gear 15 engage or the slow driving gear 20 that keeps off keeps off the engaging transmission of power to driven shaft 17 of driven gear 18 with slow, thus obtain different transmission speeds and power, adapter 19 is arranged at fast gear driving gear 14 and keeps off between driving gear 20 slowly, can make to keep off driving gear 14 soon or keep off driving gear 20 slowly to coordinate with imput shaft 13 transmission by stirring this adapter 19 vertically, thus realize gearshift.
In the present embodiment, described driving diff comprises driving differential casing 5 and drives differential gear assembly, described driving differential casing 5 is provided with power output gear 7 integrated with it, differential gear assembly belongs to existing structure, comprise planetary wheel, left half axle gear and right axle shaft gear, do not repeat them here, drive the power output gear 7 on differential casing 5 can coordinate with the existing vehicle drive system such as change-speed box, thus export after the power combination of two engine installations, power output gear 7 is one-body molded with driving differential casing 5, greatly can improve the maximum bearing load of diff, and be conducive to the compactedness improving diff.In the present embodiment, the planet wheel spindle of described driving diff is through driving differential casing also by being fixed on driving differential casing radially across the set pin of planet wheel spindle, therefore, the power from power plant output shaft will drive differential casing to export by driving differential gear assembly to be passed to.
In the present embodiment, the described axial two ends of driving differential casing 5 stretch out and are formed for the support tube 4 of the extension shaft part normal-running fit of the extension shaft part and right axle shaft gear with left half axle gear, the extension shaft part bearing fit of support tube 4 inwall and axle side gear, semiaxis one end, left and right is in transmission connection in axle side gear and extends shaft part, the other end stretches out outside support tube 4, therefore, this support tube 4 can improve the support stiffness that left and right axle side gear gear extends shaft part, is conducive to the right alignment ensureing left and right semiaxis.
In the present embodiment, be provided with outside described support tube 4 and drive differential bearing 3, this driving differential bearing 3 is provided with two and its inner ring is matched with on the support tube 4 of driving differential casing 5 both sides respectively, operationally outputting power will be rotated around axial high speed owing to driving differential casing 5, this driving differential bearing 3 can improve the right alignment of left and right half further, there will not be eccentric wear between kinematic pair, be beneficial to the service life extending diff and whole retarder.
In the present embodiment, described driving differential casing 5 is one-piece construction and this driving differential casing 5 is provided with for installing the installation via hole driving differential gear assembly, differential casing adopts one-piece construction, add and determine good right alignment man-hour, thus be easy to ensure right alignment in installation process, directly to install, improve installation effectiveness; Owing to being one-piece construction, thus Long-Time Service there will not be right alignment problem, there will not be eccentric wear between kinematic pair, is beneficial to the service life extending diff and whole retarder, reduces use cost; Owing to there is not eccentric wear, greatly reduce and use energy resource consumption, be beneficial to the travelled distance after extending battery-driven car charging.
In the present embodiment, tween drive shaft 11 is provided with between described driving diff and change-speed box, the intermediate gear that tween drive shaft 11 upper driving is combined with deceleration driving gear 10 and engages with power output gear 7, imput shaft 13 upper driving is combined with the reduction driven gear 12 engaged with deceleration driving gear 10, because the rotating speed of engine installation is larger, need to be exported by multi-stage speed-reducing, and larger reduction ratio between deceleration driving gear 10 and reduction driven gear 12, can be had, realize, after deceleration increases square, power is reached change-speed box.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.

Claims (10)

1. a planet gear drives formula back axle assembly, is characterized in that: comprise left bridge tube, right bridge tube, first input end, the second input end, planetary gear set, change-speed box and output differential; Described first input end and the second input end are in transmission connection respectively in the sun wheel of described planetary gear set and external toothing and by the pinion carrier of planetary gear set, power are passed to described change-speed box and output differential successively; The left half axle of described output differential and right axle shaft respectively normal-running fit correspondence are supported in described left bridge tube and right bridge tube and output power to the revolver axle of vehicle and right wheel shaft.
2. planet gear drives formula back axle assembly according to claim 1, is characterized in that: described planetary gear set is for driving diff; Described first input end and the second input end are in transmission connection respectively in the left half axle of described driving diff and right axle shaft and are outputed power by this driving diff.
3. planet gear drives formula back axle assembly according to claim 2, is characterized in that: the left half axle of described output differential and right axle shaft outer end are equipped with universal-joint and are in transmission connection by this universal-joint and vehicle revolver axle and right wheel shaft.
4. planet gear drives formula back axle assembly according to claim 2, it is characterized in that: described change-speed box comprises imput shaft and driven shaft, described imput shaft is in transmission connection with driving diff mouth and imput shaft is combined with in the mode that can be rotated about axis and keeps off driving gear and keep off driving gear slowly soon, described driven shaft upper driving be provided with the fast gear driven gear that engages with described fast gear driving gear and with the slow gear driven gear keeping off driving gear slowly and engage, described imput shaft is combined with gear shift adapter in the mode of the circumferencial direction transmission that slides axially.
5. planet gear drives formula back axle assembly according to claim 2, it is characterized in that: described driving diff comprises driving differential casing and drives differential gear assembly, and described driving differential casing is provided with power output gear integrated with it.
6. planet gear drives formula back axle assembly according to claim 2, is characterized in that: the planet wheel spindle of described driving diff is through driving differential casing also by being fixed on driving differential casing radially across the set pin of planet wheel spindle.
7. planet gear drives formula back axle assembly according to claim 4, is characterized in that: the axial two ends of described driving differential casing stretch out the support tube formed for the extension shaft part normal-running fit of the extension shaft part and right axle shaft gear with left half axle gear.
8. planet gear drives formula back axle assembly according to claim 5, is characterized in that: be provided with driving differential bearing outside described support tube.
9. planet gear drives formula back axle assembly according to claim 4, is characterized in that: described driving differential casing is one-piece construction and this driving differential casing is provided with for installing the installation via hole driving differential gear assembly.
10. planet gear drives formula back axle assembly according to claim 3, it is characterized in that: between described driving diff and change-speed box, be provided with tween drive shaft, the intermediate gear that described tween drive shaft upper driving is combined with deceleration driving gear and engages with power output gear, described imput shaft upper driving is combined with the reduction driven gear engaged with described deceleration driving gear.
CN201520493429.9U 2015-07-09 2015-07-09 Planetary gear drive formula rear axle assembly Active CN204870561U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520493429.9U CN204870561U (en) 2015-07-09 2015-07-09 Planetary gear drive formula rear axle assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520493429.9U CN204870561U (en) 2015-07-09 2015-07-09 Planetary gear drive formula rear axle assembly

Publications (1)

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CN204870561U true CN204870561U (en) 2015-12-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105015334A (en) * 2015-07-09 2015-11-04 重庆隆旺机电有限责任公司 Double-power coupling rear axle driving system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105015334A (en) * 2015-07-09 2015-11-04 重庆隆旺机电有限责任公司 Double-power coupling rear axle driving system

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