CN2703670Y - Gear-shift in rear axle of electric vehicle - Google Patents
Gear-shift in rear axle of electric vehicle Download PDFInfo
- Publication number
- CN2703670Y CN2703670Y CN 200420021327 CN200420021327U CN2703670Y CN 2703670 Y CN2703670 Y CN 2703670Y CN 200420021327 CN200420021327 CN 200420021327 CN 200420021327 U CN200420021327 U CN 200420021327U CN 2703670 Y CN2703670 Y CN 2703670Y
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- seat
- ratchet seat
- steel ball
- battery
- driven car
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Abstract
The utility model provides a speed-changer in rear axle of electric vehicle, comprising a rear axle roller (1), a left axle bumper (5), a right axle bumper (5), a left thorn seat (6), a right thorn seat (16), a casing (7) and a right cover (14). A speed-changing mechanism, a planetary gear mechanism, a clutch mechanism are arranged in the casing; the left thorn seat and the right thorn seat are respectively arranged at the left side and the right side of the casing (7). An inner hole (61) and the inner hole (161) are respectively arranged at the outer end of the left thorn (16) and the outer end of the right seat (16), a rolling steel ball seat (17) is pressed in the inner holes, and an outer thread (162) is arranged at the periphery at the right end of the right thorn seat (16). The outer thread (162) is used for connecting with the flywheel of the electric vehicle and achieves fast, properly fast and slow three output rotating speeds through controlling the speed-changing mechanism. The utility model has the advantages that adopting the pressing structure of the steel ball seat makes the assembly technique of the electric vehicle flywheel simple and easy and saves maintenance cost and time, and during the process of operation, the utility model has higher movable stability and reliability.
Description
Technical field
The utility model relates to a kind of transmission system of battery-driven car dynamical axis.The internal speed changer that particularly relates to a kind of battery-driven car rear axle.
Background technology
The applicant has got permission the application that number of patent application is the utility model patent of 02260534.7 " three-speed internal speed variator for rear shaft of bicycle ".Above-mentioned " three-speed internal speed variator for rear shaft of bicycle " as shown in Figure 2, it comprises by middle axle housing and both sides floral disc and forms unitized housing 7, its left end and left ratchet seat 6 adopts interference fit to be connected, the right-hand member of housing 7 covers 14 with the right side and is threaded; Being installed in antifriction-bearing box 15 formation of covering between the outer cylinder surface of endoporus and right ratchet seat 17 on the right side is rotatably connected with right ratchet seat 17.Outside the right ratchet seat 17 sprocket wheel 23 is housed, and fastens by 18 axial location of the back-up ring in the groove.Be provided with the regulating mechanism that is subjected to the control of external control device in the rear axletree, the sun gear 13 at rear axletree middle part and the transmission device engaged transmission that is located at the planetary wheel 11 at middle part in the housing, the engaging and disengaging gear that is symmetrical set in the planetary gear mechanism both sides is subjected to the speed governing mechanism controls to form many grades of output speeds.
Rear axletree 1 is a tubulose part in addition, and two supports is spirally connected on left and right axle bumper 5 and with it, and the sun gear 13 at middle part is to be interference fitted on the axle journal of rear axletree middle part.
Regulating mechanism is contained in the rear axletree 1, controlled by the external control device, comprise from left to right screw 2, spring 3, left and right pin 22, middle push rod 25, outer push rod 21, left and right pin is pressed into respectively in the left and right speed governing cover 24 that is contained on the rear axletree, and pass key shape through hole on the rear axletree and limit left and right speed governing cover 24 and in key shape through hole length, slide, reach the speed setting purpose, because it is cone structure that 24 front ends are overlapped in left and right speed governing, slip into easily, no matter bicycle remains static or the high-speed cruising state, all can carry out speed governing.
Planetary gear mechanism is arranged on the centre in the housing 7, comprise 3 planetary wheels 11 that are meshed with sun gear 13 and gear ring 10 simultaneously are housed in the pinion carrier 26, planetary wheel is contained on the planet pin 12 and is connected with its moving joining, and the two ends close-fitting of planet pin 11 is in pinion carrier 26.
Engaging and disengaging gear is symmetrical set the both sides at planetary gear mechanism, comprise a pair of length very heavy 29 and a pair of weak point very heavy 28 that are contained on the left and right very heavy axle 27, and left and right very heavy axle 27 is separately fixed in the left and right sour jujube seat 6,17, inner spinous ring 9 is contained in the outer sour jujube circle 8, all have boss structure on the end face of inside and outside sour jujube circle, can be engaged with the Baltimore groove of gear ring 10, pinion carrier 26 both sides.Length very heavy 29 on the very heavy axle 27 in a left side is enclosed 8 interlocks with outer sour jujube, weak point very heavy 28 and inner spinous ring 9 interlocks; And length very heavy 29 and inner spinous ring 9 interlocks on the right very heavy axle 27, weak point very heavy 28 encloses 8 interlocks with outer sour jujube; Between a left side (or right) sour jujube seat and length (or short) are very heavy and a left side (or right) sour jujube seat be equipped with respectively between very heavy with weak point (or length) and act on long and short very heavy spring 30 on very heavy, it makes long and short very heavyly flick outside axial around very heavy.The outer effector of control when needing speed governing, promote outer push rod 21, promote speed governing cover 24 through middle push rod 25, left and right pin 22, overlap residing diverse location according to speed governing, make long very heavy 29 full interlocks or the relieving of an end interlock one end or decontrol three kinds of states entirely, form three kinds of friction speeds.When speed governing cover 24 was in extreme right position, long very heavy 29 full interlocks were fast shelves transmission speed; When speed governing cover 24 was in the midway location of key shape through hole, the length on the left ratchet seat 6 very heavy 29 was decontroled, and the very heavy interlock of the length in the right ratchet seat 17 is middle-grade transmission speed; When speed governing cover 24 was in the left end end position, long very heavy 29 full relievings were slow shelves transmission speed.
The rear axle gyroscopic movement of above-mentioned utility model patent " three-speed internal speed variator for rear shaft of bicycle " is stable, has improved reliability of operation and safety.Yet it is applicable to the bicycle of sprocket wheel output, still owes not enough for the structural requirement of the battery-driven car that is applied to flywheel output.
Summary of the invention
The purpose of this utility model is exactly in order to overcome above-mentioned weak point of the prior art, and a kind of battery-driven car speed gear mounted in rear hub of property rational in infrastructure, safe and reliable to operation is provided.
The purpose of this utility model is by providing a kind of battery-driven car speed gear mounted in rear hub with following structure to realize, it comprises rear axletree, support the left side of described rear axletree, right axle bumper, be installed in the left ratchet seat and the housing of described left axle bumper outside, described housing right-hand member connects a right lid, the right ratchet seat of one band antifriction-bearing box is installed in the described right lid endoporus, described housing is formed integral type by middle axle housing and both sides floral disc, its in-to-in is equipped with regulating mechanism, planetary gear mechanism, engaging and disengaging gear, described left ratchet seat and right ratchet seat are installed on respectively on the left side and right side floral disc of described housing.
The right-hand member of described right ratchet seat is provided with an endoporus, between described right ratchet seat and the described right axle bumper rolling steel balls seat is set, the left end of described left ratchet seat is provided with an endoporus, between described left ratchet seat and the described left axle bumper rolling steel balls seat is set, the right-hand member periphery of described right ratchet seat is provided with outside thread, and described outside thread is used for the convenient flywheel output that connects battery-driven car.
The big end of described steel ball seat exposes the outer end diameter of diameter less than described right ratchet seat, directly pushes when its objective is the flywheel that is used to install battery-driven car.The big end of described steel ball seat exposes the outer end diameter of diameter less than described left ratchet seat, directly pushes when its objective is the brake that is used to battery-driven car is installed.
Described left ratchet seat endoporus is set to be pressed into steel ball seat and cooperates, and is provided with steel ball between described steel ball seat and the described right axle bumper.Described right ratchet seat endoporus is set to be pressed into steel ball seat and cooperates, and is provided with steel ball between described steel ball seat and the described left axle bumper.
Friction of rolling auxiliary structure between described right ratchet seat and the described right axle bumper is to be pressed into a steel ball seat in the described endoporus, is provided with steel ball between described steel ball seat and the described right axle bumper.
The right-hand member of described left ratchet seat is provided with an endoporus, be set to rolling friction pair between described left ratchet seat and the described left axle bumper, friction of rolling auxiliary structure between described left ratchet seat and the described left axle bumper is to be pressed into a steel ball seat in the described endoporus, is provided with steel ball between described steel ball seat and the described left axle bumper.
The right-hand member of described housing adopts left-hand thread to be connected with right lid.The left end of described housing adopts interference fit to be connected with left ratchet seat.
The adjustment of battery-driven car rear axle speed is to obtain three kinds of friction speeds by controlling outer effector: promote outer push rod, promote the speed governing cover through middle push rod, left and right pin, overlap residing diverse location according to speed governing, make long very heavy full interlock or the relieving of an end interlock one end or decontrol three kinds of states entirely, form three kinds of friction speeds.When the speed governing cover was in extreme right position, long very heavy full interlock was fast shelves transmission speed; When the speed governing cover is in the midway location of key shape through hole, the very heavy relieving of the length on the left ratchet seat, the very heavy interlock of the length in the right ratchet seat is middle-grade transmission speed; When speed governing was enclosed within the left end end position, long very heavy full relieving was slow shelves transmission speed.
Compared with prior art, advantage of the present utility model is: 1. rational in infrastructure, the assembly technology of electric vehicle flywheel is simply easy; 2. the stability of battery-driven car rear axle in operational process is good, and has higher serviceability and safety.
Description of drawings
Fig. 1 is an integral structure scheme drawing of the present utility model;
Fig. 2 is the integral structure scheme drawing of prior art;
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Fig. 1 is an embodiment of the present utility model, it comprises rear axletree 1, support the left side of described rear axletree, right axle bumper 5, be installed in the left ratchet seat of described left axle bumper outside, housing 7, described housing right-hand member connects a right lid 14, the right ratchet seat 16 of one band antifriction-bearing box 15 is installed in the described right lid endoporus, described housing 7 is formed integral type by middle axle housing and both sides floral disc, its in-to-in is equipped with regulating mechanism, planetary gear mechanism, engaging and disengaging gear, described left ratchet seat and right ratchet seat are installed on respectively on the left side and right side floral disc of described housing 7. and the right-hand member of described right ratchet seat 16 is provided with an endoporus 161, be set to rolling friction pair between described right ratchet seat 16 and the described right axle bumper 5, be pressed into a steel ball seat 17 in the described endoporus 161, be provided with steel ball 18 between described steel ball seat 17 and the described right axle bumper 5.
The right-hand member of described left ratchet seat 6 is provided with an endoporus 61, is set to rolling friction pair between described left ratchet seat 6 and the described left axle bumper 5, is pressed into a steel ball seat 17 in the described endoporus 61, is provided with steel ball 18 between described steel ball seat 17 and the described left axle bumper 5.The big end of described steel ball seat 17 exposes the outer end diameter of diameter less than described right ratchet seat 16.The big end of described steel ball seat 17 exposes the outer end diameter of diameter less than described left ratchet seat 6.Described endoporus 161 is set to be pressed into steel ball seat 17 and cooperates.Described endoporus 61 is set to be pressed into steel ball seat 17 and cooperates.So just the flywheel of battery-driven car directly can be pushed installation.And in using wear-process, need only change steel ball seat 17 and the left right ratchet seat that can not wear and tear, to save service expenditure and time.
Described right ratchet seat is equipped with flywheel outward, and the right-hand member periphery of right ratchet seat 16 is provided with outside thread 162, and it is used to connect the flywheel output of battery-driven car.The right-hand member of described housing 7 adopts left-hand thread to be connected with right lid 14.The left end of described housing 7 adopts interference fit to be connected with left ratchet seat 6, and when battery-driven car was braked in the process of riding rapidly, housing left end and left ratchet seat tightly kept one and skidding can not take place.
Rear axletree 1 is a tubulose part in addition, and two supports is spirally connected on left and right axle bumper 5 and with it, and the sun gear 13 at middle part is to be interference fitted on the axle journal of rear axletree middle part.
Regulating mechanism is contained in the rear axletree 1, controlled by the external control device, comprise from left to right screw 2, spring 3, left and right pin 21, middle push rod 23, outer push rod 28, left and right pin is pressed into respectively in the left and right speed governing cover 22 that is contained on the rear axletree, and pass key shape through hole on the rear axletree and limit left and right speed governing cover 22 and in key shape through hole length, slide, reach the speed setting purpose, because left and right speed governing cover front end is a cone structure, slip into easily, no matter bicycle remains static or the high-speed cruising state, all can carry out speed governing.
Planetary gear mechanism is arranged on the centre in the housing 7, comprise 3 planetary wheels 11 that are meshed with sun gear 13 and gear ring 10 simultaneously are housed in the pinion carrier 24, planetary wheel is contained on the planet pin 12 and is connected with its moving joining, and the two ends close-fitting of planet pin 11 is in pinion carrier 24, and gear ring 10 and pinion carrier 24 both sides all are processed with Baltimore groove.
Engaging and disengaging gear is symmetrical set the both sides at planetary gear mechanism, comprise a pair of length very heavy 27 and a pair of weak point very heavy 26 that are contained on the very heavy axle 25, and very heavy axle is separately fixed in the left and right sour jujube seat 6,16, inner spinous ring 9 is contained in the outer sour jujube circle 8, all have boss structure on the end face of inside and outside sour jujube circle, can be engaged with the Baltimore groove of gear ring 10, pinion carrier 24 both sides.Length on the very heavy axle in a left side is very heavy encloses 8 interlocks with outer sour jujube, short very heavy and inner spinous ring 9 interlocks; And very heavy and inner spinous ring 9 interlocks of length on the right very heavy axle, weak point is very heavy to enclose 8 interlocks with outer sour jujube; Between a left side (or right) sour jujube seat and length (or short) are very heavy and a left side (or right) sour jujube seat be equipped with respectively between very heavy with weak point (or length) and act on long and short very heavy spring 28 on very heavy, it makes long and short very heavyly flick outside axial around very heavy.
Control outer effector and carry out speed governing.Promote outer push rod, promote speed governing cover 22, overlap residing diverse location, make long very heavy full interlock or the relieving of an end interlock one end or decontrol three kinds of states entirely, form three kinds of friction speeds according to speed governing through middle push rod, left and right pin.When the speed governing cover was in extreme right position, the very heavy full interlock of length was fast shelves transmission speed, and back sprocket rotation drive this moment right ratchet seat rotates, the very heavy interlock of length in the right ratchet seat, the right inner spinous ring rotates, and drives pinion carrier and rotates, and planetary wheel is done rotation and revolved round the sun, this moment, gear ring rotated and speedup, the outer sour jujube circle in the right skids, and the sour jujube circle rotates outside the left side, and left side inner spinous ring skids, long very heavy interlock in the left ratchet seat drives left ratchet seat and housing and rotates synchronously.When the speed governing cover is in the midway location of key shape through hole, the very heavy relieving of the length on the left ratchet seat, the very heavy interlock of the length in the right ratchet seat is middle-grade transmission speed; Back sprocket rotation drives right ratchet seat and rotates, and long very heavy interlock drives the right inner spinous ring and rotates in the right ratchet seat, and pinion carrier is rotated again, this moment this time-division two-way, one tunnel left side inner spinous ring rotates, the very heavy interlock of the weak point in the left ratchet seat drives left ratchet seat and housing and rotates synchronously; Another road planetary wheel is done rotation and revolution, makes the gear ring speedup, and the outer sour jujube circle in the right is skidded, and makes long very heavy the opening in the left side simultaneously, makes sour jujube circle idle running outside the left side.When speed governing is enclosed within the left end end position, long very heavy full relieving is slow shelves transmission speed, this moment, the back sprocket rotation drove the right ratchet seat rotation, make the very heavy relieving of length in the right ratchet seat, the right inner spinous ring idle running, and the short very heavy interlock in the right, the outer sour jujube circle in the right is rotated drive the gear ring rotation, the idle running of sour jujube circle makes the long very heavy relieving in the left side outside the left side at this moment, the rotation of gear ring drives the planetary wheel rotation and makes the pinion carrier deceleration transmission, left side inner spinous ring rotates and makes the short very heavy interlock in the left side, drives left ratchet seat and housing and rotates synchronously.
Claims (7)
1. battery-driven car speed gear mounted in rear hub, it comprises rear axletree (1), support the left side of described rear axletree, right axle bumper (5), be installed in the left ratchet seat of described left axle bumper outside, housing (7), described housing right-hand member connects a right lid (14), the right ratchet seat of one band antifriction-bearing box (15) is installed in the described right lid endoporus, described housing (7) is formed integral type by middle axle housing and both sides floral disc, its in-to-in is equipped with regulating mechanism, planetary gear mechanism, engaging and disengaging gear, described left ratchet seat and right ratchet seat are installed on respectively on the left side and right side floral disc of described housing (7), it is characterized in that: the right-hand member of described right ratchet seat (16) is provided with an endoporus (161), one rolling steel balls seat (17) is set between described right ratchet seat (16) and the described right axle bumper (5), the left end of described left ratchet seat (6) is provided with an endoporus (61), one rolling steel balls seat (17) is set between described left ratchet seat (6) and the described left axle bumper (5), and the right-hand member periphery of described right ratchet seat (16) is provided with outside thread (162).
2. battery-driven car speed gear mounted in rear hub as claimed in claim 1 is characterized in that: the big end of described steel ball seat (17) exposes the outer end diameter of diameter less than described right ratchet seat (16).
3. battery-driven car speed gear mounted in rear hub as claimed in claim 1 is characterized in that: the big end of described steel ball seat (17) exposes the outer end diameter of diameter less than described left ratchet seat (6).
4. battery-driven car speed gear mounted in rear hub as claimed in claim 1 is characterized in that: described left ratchet seat endoporus (161) is set to be pressed into steel ball seat (17) and cooperates, and is provided with steel ball (18) between described steel ball seat (17) and the described right axle bumper (5).
5. battery-driven car speed gear mounted in rear hub as claimed in claim 1 is characterized in that: described right ratchet seat endoporus (61) is set to be pressed into steel ball seat (17) and cooperates, and is provided with steel ball (18) between described steel ball seat (17) and the described left axle bumper (5).
6. battery-driven car speed gear mounted in rear hub as claimed in claim 1 is characterized in that: the right-hand member of described housing (7) adopts left-hand thread to be connected with You Gai (14).
7. battery-driven car speed gear mounted in rear hub as claimed in claim 1 is characterized in that: the left end of described housing (7) adopts interference fit to be connected with left ratchet seat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420021327 CN2703670Y (en) | 2004-03-26 | 2004-03-26 | Gear-shift in rear axle of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420021327 CN2703670Y (en) | 2004-03-26 | 2004-03-26 | Gear-shift in rear axle of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2703670Y true CN2703670Y (en) | 2005-06-08 |
Family
ID=34769917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420021327 Expired - Fee Related CN2703670Y (en) | 2004-03-26 | 2004-03-26 | Gear-shift in rear axle of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2703670Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108431456A (en) * | 2015-12-30 | 2018-08-21 | 罗列斯有限公司 | Stepless planetary variable-speed device |
-
2004
- 2004-03-26 CN CN 200420021327 patent/CN2703670Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108431456A (en) * | 2015-12-30 | 2018-08-21 | 罗列斯有限公司 | Stepless planetary variable-speed device |
| CN108431456B (en) * | 2015-12-30 | 2021-08-10 | 罗列斯有限公司 | Stepless planetary transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |