CN203868184U - Anti-collision mechanism for centrifugal clutch of electric vehicle - Google Patents
Anti-collision mechanism for centrifugal clutch of electric vehicle Download PDFInfo
- Publication number
- CN203868184U CN203868184U CN201420243313.5U CN201420243313U CN203868184U CN 203868184 U CN203868184 U CN 203868184U CN 201420243313 U CN201420243313 U CN 201420243313U CN 203868184 U CN203868184 U CN 203868184U
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- China
- Prior art keywords
- ratchet
- gear
- rolling disc
- position limit
- grooves
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- Expired - Fee Related
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- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
An anti-collision mechanism for a centrifugal clutch of an electric vehicle comprises a gear, a ratchet wheel and a rotating disc which are mounted in a motor gearbox, wherein rotating disc limit pins, ratchet pawl fixing pins and cushion blocks are mounted on the rotating disc; ratchet pawls are mounted on the ratchet pawl fixing pins; ratchets of the ratchet pawls are meshed with the ratchet wheel; snap clasps are mounted on the cushion blocks; waist-shaped grooves are formed in the gear and matched with the rotating disc limit pins; limit grooves are formed in the rotating disc; ratchet pawl limit pins are mounted on the gear corresponding to the limit grooves; grooves are formed in the ratchet pawls; and the ratchet pawl limit pins penetrate through the limit grooves to be matched with the grooves. According to the scheme, collision and friction between each ratchet pawl and the ratchet wheel due to the fact that the ratchet pawls are thrown out under the condition of forward rotation of a motor can be prevented, so that the service life of the ratchet wheel and the service life of each ratchet pawl are prolonged, and comfort of riding is guaranteed.
Description
Technical field
The utility model relates to a kind of electric vehicle centrifugal formula clutch anticollision mechanism, belongs to electric motor car clutch field.
Background technique
At present, electric motor car clutch is to realize gear motor to obtain different output speeds and torque by automatic gear-shifting, in high speed gear, utilize centrifugal principle, clockwise and anticlockwise campaign by click realizes automatic gear-shifting, the China Patent No. ZL201110217964.8 that for example the applicant once applied for, name is called " centrifugal clutch and the electrically-propelled vehicle shifting driving hub with this clutch ", in the time that motor speed increases gradually, ratchet outwards throws away under the effect of centrifugal force, gearing motor when reversion click engagement of click when motor forward, realize output at a high speed.But, in use there is a serious defect in click, be exactly no matter motor forward is still reversed, ratchet all will throw away under the effect of centrifugal force, the in the situation that of motor forward, ratchet throws away afterwards and ratchet does not stop collision generation abnormal sound, not only greatly reduces the working life of click, also has influence on travelling comfort by bike.
Summary of the invention
The purpose of this utility model is the shortcoming in order to overcome prior art, providing one to avoid under motor forward condition ratchet to throw away with ratchet bumps and rubs, thereby improve click working life, ensure comfortable by bike electric vehicle centrifugal formula clutch anticollision mechanism.
The technological scheme of the utility model electric vehicle centrifugal formula clutch anticollision mechanism is: comprise the gear being arranged in motor gear box, ratchet and rolling disc, rolling disc position limit pin is installed on rolling disc, ratchet fixing pin and cushion block, on ratchet fixing pin, ratchet is installed, the ratchet of ratchet is meshed with ratchet, mounting spring drag hook on cushion block, on gear, be shaped with waist type groove, rolling disc position limit pin matches with kidney slot, it is characterized in that being shaped with restraining groove on described rolling disc, ratchet position limit pin is installed on the gear corresponding with restraining groove, on ratchet, be shaped with groove, ratchet position limit pin matches with groove through restraining groove.
Electric vehicle centrifugal formula clutch anticollision mechanism of the present utility model, in the time that motor starts forward, because of stiction reason, rolling disc is motionless with respect to gear, in the time that the rolling disc position limit pin on rolling disc is encountered on gear waist type groove inwall one side, just follow gear forward together, now ratchet enters on rolling disc position limit pin just with rolling disc, along with motor speed increases, ratchet throws away under centrifugal action, now the groove on ratchet snaps on ratchet position limit pin just, making ratchet and ratchet avoid contacting bumps and produces abnormal sound, thereby the working life of raising ratchet and pawl and by bike travelling comfort, in the time that motor moment reverses, gear reverses immediately, due to inertia, forward before rolling disc still keeps, in the time that the rolling disc position limit pin on rolling disc is encountered gear waist type groove inwall opposite side, just follow gear and reverse together, now ratchet is deviate from ratchet position limit pin with rolling disc, under centrifugal action, throw away with ratchet and engage, thereby realize the at a high speed output of reversion of motor.
Brief description of the drawings
Fig. 1 is electric vehicle centrifugal formula clutch forward rotation anticollision mechanism mated condition schematic diagram of the present utility model;
Fig. 2 is that electric vehicle centrifugal formula clutch of the present utility model rotates backward schematic diagram.
Embodiment
The utility model relates to a kind of electric vehicle centrifugal formula clutch anticollision mechanism, as Fig. 1, shown in Fig. 2, comprise the gear 2 being arranged in motor gear box, ratchet 3 and rolling disc 4, rolling disc position limit pin 13 is installed on rolling disc 4, ratchet fixing pin 5 and cushion block 8, ratchet 6 is installed on ratchet fixing pin, the ratchet 7 of ratchet 6 is meshed with ratchet 3, mounting spring drag hook 9 on cushion block 8, on gear 2, be shaped with waist type groove 14, rolling disc position limit pin 13 matches with kidney slot 14, on described rolling disc 4, be shaped with restraining groove 10, on the gear 2 corresponding with restraining groove, ratchet position limit pin 11 is installed, on ratchet 6, be shaped with groove 12, ratchet position limit pin 11 matches with groove 12 through restraining groove 10.In the time that motor starts forward, because of stiction reason, rolling disc 4 is motionless with respect to gear 2, in the time that the rolling disc position limit pin 13 on rolling disc 4 is encountered on gear 2 waist type groove 14 inwall one side, just follow gear 2 forward together, now ratchet 6 enters on rolling disc position limit pin 13 just with rolling disc 4, along with motor speed increases, ratchet 6 throws away under centrifugal action, now the groove 12 on ratchet 6 snaps on ratchet position limit pin 11 just, making ratchet 6 avoid contacting with ratchet 3 bumps and produces abnormal sound, thereby the working life of raising ratchet 3 and ratchet 6 and by bike travelling comfort, in the time that motor moment reverses, gear 2 reverses immediately, due to inertia, forward before rolling disc 4 still keeps, in the time that the rolling disc position limit pin 13 on rolling disc 4 is encountered gear 2 waist type groove 14 inwall opposite side, just follow gear 2 and reverse together, now ratchet 6 is deviate from ratchet position limit pin 11 with rolling disc 4, under centrifugal action, throw away with ratchet 3 and engage, thereby realize the at a high speed output of reversion of motor.
Claims (1)
1. electric vehicle centrifugal formula clutch anticollision mechanism, comprise the gear (2) being arranged in motor gear box, ratchet (3) and rolling disc (4), the upper rolling disc position limit pin (13) of installing of rolling disc (4), ratchet fixing pin (5) and cushion block (8), ratchet (6) is installed on ratchet fixing pin, the ratchet (7) of ratchet (6) is meshed with ratchet (3), the upper mounting spring drag hook (9) of cushion block (8), on gear (2), be shaped with waist type groove (14), rolling disc position limit pin (13) matches with kidney slot (14), it is characterized in that being shaped with restraining groove (10) on described rolling disc (4), the upper ratchet position limit pin (11) of installing of the gear (2) corresponding with restraining groove, on ratchet (6), be shaped with groove (12), ratchet position limit pin (11) matches with groove (12) through restraining groove (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243313.5U CN203868184U (en) | 2014-05-14 | 2014-05-14 | Anti-collision mechanism for centrifugal clutch of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243313.5U CN203868184U (en) | 2014-05-14 | 2014-05-14 | Anti-collision mechanism for centrifugal clutch of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868184U true CN203868184U (en) | 2014-10-08 |
Family
ID=51649141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420243313.5U Expired - Fee Related CN203868184U (en) | 2014-05-14 | 2014-05-14 | Anti-collision mechanism for centrifugal clutch of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757098A (en) * | 2014-12-18 | 2016-07-13 | 佛山市永力泰车轴有限公司 | Nut assembly with pre-determinable locking torque |
-
2014
- 2014-05-14 CN CN201420243313.5U patent/CN203868184U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757098A (en) * | 2014-12-18 | 2016-07-13 | 佛山市永力泰车轴有限公司 | Nut assembly with pre-determinable locking torque |
| CN105757098B (en) * | 2014-12-18 | 2018-06-12 | 佛山市永力泰车轴有限公司 | Can predetermined locking torque nut assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20160514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |