CN203880072U - Gear locking device of two-wheel electric bicycle - Google Patents
Gear locking device of two-wheel electric bicycle Download PDFInfo
- Publication number
- CN203880072U CN203880072U CN201420271491.9U CN201420271491U CN203880072U CN 203880072 U CN203880072 U CN 203880072U CN 201420271491 U CN201420271491 U CN 201420271491U CN 203880072 U CN203880072 U CN 203880072U
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- CN
- China
- Prior art keywords
- gear
- plate body
- locking device
- electric motor
- motor car
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a gear locking device of a two-wheel electric bicycle. The gear locking device of the two-wheel electric bicycle comprises a U-type board, the position, close to the closed end, of one side of the board is provided with a limiting section bent towards the outer side of the board, and the position, close to the open end, of the other side of the board is provided with a limiting section bent towards the outer side of the board. Through the gear locking device of the two-wheel electric bicycle, the gear stability is good and noise is low in the running process of the electric bicycle.
Description
Technical field
The utility model relates to electric motor car speed changing structure, relates in particular to a kind ofly by motor positive and inverse, to shift gears and electric motor car with two wheels gear locking device that can free sliding.
Background technique
Along with social development, electric motor car especially electric motor car with two wheels, as a kind of traffic tool of very environmental protection, more and more enters in people's life.In the development of electric motor car, occurred utilizing the clockwise and anticlockwise of motor to shift gears, as CN 203020506 U disclosed a kind of " electric motor car side-hanging type gearbox ", although it has realized self shifter, but gearshift stability is bad, especially after power input stops during free sliding, easily there is disengaging and cause the situation of off-gear in sliding gear and driving gear, during input power, sliding gear is again combined to form with driving gear and is put into gear again; Thereby cause in " plus-minus throttle " process, sliding gear and driving gear can constantly produce collision, thereby cause sending in electric motor car process very large noise.
Model utility content
For prior art above shortcomings, the purpose of this utility model is how to solve gear poor stability in electric motor car with two wheels running process, and the problem that noise is large provides a kind of electric motor car with two wheels gear locking device, can make gear good stability in electric motor car running process, noise is low.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is such: a kind of electric motor car with two wheels gear locking device, it is characterized in that: comprise that one is U-shaped plate body, one side of described plate body has spacing section of outside plate body lateral buckling near closed end place, opposite side also has spacing section of outside plate body lateral buckling near place, open end.
Further, the closed end at U-shaped plate body offers a mounting hole.
Further, described plate body is made by metal material.
Compared with prior art, the utlity model has following advantage: simple in structure, easy to process; This device is applicable to shift gears and the gearbox of electric motor car that can free sliding by motor positive and inverse, during use by this device the direction along the driving shaft in gearbox, be arranged on by (or in the chute on sidewall) on the sidewall of gear box, and the fork handle of shift fork is positioned at inside this device; Like this, in electric motor car running process, shift fork is positioned at spacing section of this device all the time, make gearbox all the time in gear bonding state, thereby make gear stability better, avoid sliding gear and driving gear to produce collision simultaneously, and then effectively reduce the noise producing in running process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is for being used the structural representation of gearbox of the present utility model;
Fig. 3 is Fig. 2 along A-A to the schematic diagram after cutting open;
Fig. 4 be Fig. 3 along B-B to the schematic diagram after cutting open (being the assembling schematic diagram of the utility model when practical).
In figure: 1-casing, 2-driving shaft, 3-driven shaft, 4-shift fork, 5-reduction gear, 6-one gear driving gear, 7-two gear driving gears, 8-sliding gear, 9-one gear driven gear, 10-two gear driven gears, 11-driving gear, 12-chute, 13-unilateral bearing, 14-power input shaft, 15-power input gear.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment: referring to Fig. 1, a kind of electric motor car with two wheels gear locking device, comprise that one is U-shaped plate body, a side of described plate body has spacing section of outside plate body lateral buckling near closed end place, and opposite side also has spacing section of outside plate body lateral buckling near place, open end.Closed end at U-shaped plate body offers a mounting hole; Be convenient to this device to be fixed on the sidewall (chute 12 in) of gearbox.Described plate body is made by metal material; Thereby it is firmer to make fork handle move the structure of limit structure, and stability is better, longer service life.
This device is applicable to shift gears and the gearbox of electric motor car that can free sliding by motor positive and inverse, referring to Fig. 2, Fig. 3, described gearbox comprises casing 1, be arranged on driving shaft 2, driven shaft 3 and shift fork 4 in casing 1, be set in reduction gear 5, a gear driving gear 6, two gear driving gear 7 and sliding gears 8 on driving shaft 2, and be set in the gear driven gear 9 of one on driven shaft 3 and two gear driven gears 10; Wherein, described reduction gear 5 is fixedly connected with driving shaft 2, and a gear driving gear 6 and two gear driving gears 7 are all rotatably set on driving shaft 2; Sliding gear 8 is between a gear driving gear 6 and two gear driving gears 7, in the both sides of sliding gear 8, be provided with several draw-in grooves, one gear driving gear 6 and two gear driving gears 7 are provided with the claw corresponding with draw-in groove near a side of sliding gear 8, are also provided with one around the sliding gear shift fork of 8 one weeks 4 grooves on the side face of sliding gear 8; One gear driving gear 6 and gear driven gear 9 engagements, two gear driving gears 7 are connected with two gear driven gears 10 after a driving gear 11.
Described driving shaft 2 is provided with Turbo Flora keyway, the endoporus of described sliding gear 8 has the helical spline tooth matching with Turbo Flora keyway, sliding gear 8 is located on driving shaft 2 by the engage sleeves of helical spline tooth and Turbo Flora keyway, and sliding gear 8 moves and can keep off driving gear 7 combinations with a gear driving gear 6 or two along driving shaft 2.
Described shift fork 4 comprises jaw and fork handle, and described jaw is resilient clamp structure, and this jaw is clamped in shift fork 4 grooves of sliding gear 8, and is close to the bottom surface of shift fork 4 grooves, makes can produce friction between jaw and sliding gear 8; Length direction along driving shaft 2 on the sidewall of casing 1 is provided with a chute 12, and described shift fork 4 is positioned at this chute 12 away from one end of jaw, and shift fork 4 can move along chute 12.A described gear driven gear 9 and two gear driven gears 10 are all arranged on driven shaft 3 by unilateral bearing 13.
Referring to Fig. 4, this device is arranged in chute 12, and its one end is fixedly connected with one end of chute 12 by screw.Like this, when sliding gear 8 combines with a gear driving gear 6 or two gear driving gears 7, the fork handle of shift fork 4 is positioned at plate body open end or closed end spacing section; When power input stops, because unilateral bearing 13 inside still have friction, make driven shaft 3 drive driving gear to be rotated further by driven gear, now, driving gear drives sliding gear 8 to rotate backward and is mobile, but because the frictional force of unilateral bearing 13 inside is very little, be not enough to drive sliding gear 8 significantly to rotate by driving gear, so fork handle cannot turn to spacing section of disengaging; But because fork handle is positioned at spacing section, so limited section of fork handle (bending place) stops and cannot move, thus avoid because of the long off-gear situation causing of sliding gear 8 displacement distances, make gear keep stability better; While avoiding again input power, sliding gear 8 produces collision with driving gear, and then effectively reduces noise simultaneously.
When only the power input gear on power input shaft 14 15 rotates backward (motor counterrotating), sliding gear 8 drives shift fork 4 to rotate, make fork handle from spacing section of disengaging of plate body one side, and be close to plate body opposite side sidewall, then along this sidewall, move, until move in spacing section of this side, sliding gear 8 combines with driving gear simultaneously.
Finally it should be noted that, above embodiment is only in order to the technical solution of the utility model to be described but not restriction technologies scheme, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or are equal to replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. an electric motor car with two wheels gear locking device, it is characterized in that: comprise that one is U-shaped plate body, one side of described plate body has spacing section of outside plate body lateral buckling near closed end place, opposite side also has spacing section of outside plate body lateral buckling near place, open end; This plate body is arranged in the chute of gear box, and the fork handle end of shift fork is positioned at plate body, and when the sliding gear in gearbox combines with a gear driving gear or two gear driving gears, the fork handle of shift fork is positioned at plate body open end or closed end spacing section.
2. electric motor car with two wheels gear locking device according to claim 1, is characterized in that: the closed end at U-shaped plate body offers a mounting hole.
3. electric motor car with two wheels gear locking device according to claim 1, is characterized in that: described plate body is made by metal material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420271491.9U CN203880072U (en) | 2014-05-26 | 2014-05-26 | Gear locking device of two-wheel electric bicycle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420271491.9U CN203880072U (en) | 2014-05-26 | 2014-05-26 | Gear locking device of two-wheel electric bicycle |
Publications (1)
Publication Number | Publication Date |
---|---|
CN203880072U true CN203880072U (en) | 2014-10-15 |
Family
ID=51680570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201420271491.9U Expired - Fee Related CN203880072U (en) | 2014-05-26 | 2014-05-26 | Gear locking device of two-wheel electric bicycle |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN203880072U (en) |
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2014
- 2014-05-26 CN CN201420271491.9U patent/CN203880072U/en not_active Expired - Fee Related
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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: 20141015 Termination date: 20160526 |