CN203488599U - Hub type brake - Google Patents
Hub type brake Download PDFInfo
- Publication number
- CN203488599U CN203488599U CN201320629227.3U CN201320629227U CN203488599U CN 203488599 U CN203488599 U CN 203488599U CN 201320629227 U CN201320629227 U CN 201320629227U CN 203488599 U CN203488599 U CN 203488599U
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- CN
- China
- Prior art keywords
- friction plate
- ratchet
- shell
- arm shaft
- pitman arm
- 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 hub type brake which comprises a shell, a rocker arm, a torsion spring, a left friction sheet and a right friction sheet, wherein the left friction sheet and the right friction sheet are movably arranged on the shell. The hub type brake further comprises a rockshaft and a sliding shaft. The rockshaft penetrates through a through hole matched with the rockshaft inside the shell, wherein the through hole is arranged in the shell. A spline ratchet shifting device is arranged at the upper end of the rockshaft. The lower end of the rockshaft is connected with the rocker arm. The rocker arm is connected with the shell through the torsion spring. The left end of a spline nut abuts against the rockshaft. A sliding groove matched with the front end of the left friction sheet is arranged in the rockshaft. A protruding block is arranged on the rocker arm. A limiting block is arranged on the edge of the shell and used for limiting the protruding block on the rocker arm. A sliding shaft hole matched with the sliding shaft is formed in the rear fixation seat. The left end of the sliding shaft is provided with a left sliding groove matched with the left friction sheet. The right end of the sliding shaft is provided with a right sliding groove matched with the right friction sheet. The bottom faces of the left sliding groove and the right sliding grooves are arc faces.
Description
Technical field
The utility model relates to a kind of braking device of electric vehicle, especially a kind of hub type brake.
Background technique
Existing a kind of electric bicycle hub type brake, a kind of hub type brake for example proposing in the utility model patent ZL201220328995.0 of on 01 16th, 2013 bulletins, this break comprises shell and is movably arranged on left friction plate and the right friction plate on shell, fixed base after the rear end of shell is provided with, in the left side of rear fixed base, be provided with the left chute cooperatively interacting with left friction plate rear end, on the right side of rear fixed base, be provided with the right rail cooperatively interacting with right friction plate rear end, Returnning spring and front Returnning spring after being provided with between left friction plate and right friction plate, fixed base before the front end of shell is provided with, movable adjusting splined nut is set in front fixed base, on adjusting splined nut, spline ratchet is set, in regulating splined nut, be provided with adjusting screw, in adjusting screw, be provided with the adjusting screw chute cooperatively interacting with left friction plate front end, regulate the right-hand member of splined nut and the left end of slidable adjustment push rod to offset, on the right-hand member of slidable adjustment push rod, be provided with the slidable adjustment push rod chute cooperatively interacting with right friction plate front end, slidable adjustment push rod is movably arranged in square axis, in the upper end of square axis, be provided with gear striking gear, be provided with in the enclosure the restraining groove cooperatively interacting with square axis, the lower end of square axis is connected with swing arm, swing arm is connected with shell by torsion spring.Described gear striking gear comprises and the ratchet that regulates splined nut to cooperatively interact, be fixedly installed on ratchet fixed plate and the leaf spring of square axis upper end, the upper end of ratchet is through the mounting hole on ratchet fixed plate, in the upper end of ratchet, be provided with ratchet positioning block, ratchet positioning block is arranged in the mounting hole on leaf spring.
When needs brake, manually by bracing wire, pull swing arm, swing arm drives square axis to rotate in restraining groove, square axis drives slidable adjustment push rod, ratchet, ratchet fixed plate and leaf spring rotate, the right-hand member of slidable adjustment push rod promotes right friction plate to the right, the left end of slidable adjustment push rod promotes to regulate splined nut, regulate splined nut to promote adjusting screw, the left end that promotes adjusting screw promotes left friction plate to the left, slide in left friction plate rear end in left chute, slide in right friction plate rear end in right rail, left friction plate and right friction plate and brake hub are cooperatively interacted and play braking action.
In above-mentioned brake process, when swing arm drives square axis to rotate in restraining groove, square axis promotes right friction plate to the right by the right-hand member of slidable adjustment push rod on the one hand, and the left end by adjusting screw promotes left friction plate to the left on the other hand.Because swing arm drives square axis in brake process, square axis will be promoted right friction plate to the right and by adjusting screw, left friction plate be promoted to the left by slidable adjustment push rod simultaneously, promote with right side to the left simultaneously, both direction firmly, the manual operation of therefore pulling swing arm is relatively required great effort, thereby affects the safety brake of vehicle.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of hub type brake, and the brake operating of this hub type brake is more laborsaving, thereby is conducive to the safety brake of vehicle.
For solving the problems of the technologies described above, a kind of hub type brake of the utility model, contain shell, rocking arm, torsion spring, be movably arranged on left friction plate and right friction plate on shell, the rear end of shell is provided with rear fixed base, between left friction plate and right friction plate, be provided with rear Returnning spring and front Returnning spring, the front end of shell is provided with front fixed base, movable splined nut is set in front fixed base, spline ratchet is set on splined nut, in splined nut, be provided with adjusting bolt, in adjusting bolt, be provided with the chute matching with right friction plate front end, also contain pitman arm shaft and slide-bar, pitman arm shaft is installed in the through hole matching with pitman arm shaft being provided with in described shell, the upper end of pitman arm shaft is provided with spline ratchet striking gear, the lower end of pitman arm shaft is connected with described rocking arm, rocking arm is connected with described shell by described torsion spring, left end and the pitman arm shaft of described splined nut offset, pitman arm shaft is provided with the sliding-groove matching with left friction plate front end, described rocking arm is provided with projection, described shell edge is provided with limiting stopper, this limiting stopper is for stopping the projection that rocking arm is provided with, described rear fixed base is provided with the slide-bar hole matching with slide-bar, the left end of slide-bar is provided with the left chute matching with left friction plate rear end, the right-hand member of slide-bar is provided with the right rail matching with right friction plate rear end, the bottom surface of described left chute and right rail is arc shaped surface.
Described spline ratchet striking gear comprises the ratchet cooperatively interacting with spline ratchet, be fixedly installed on ratchet fixed plate and the leaf spring of pitman arm shaft upper end, ratchet is installed in the mounting hole on ratchet fixed plate, in the upper end of ratchet, be provided with ratchet positioning block, the right-hand member of leaf spring is arranged in the groove that ratchet positioning block is provided with.
The bottom surface of the chute matching with right friction plate front end that described adjusting bolt is provided with is arc shaped surface.
Described leaf spring is loop configuration.
The two ends of the bottom surface of the sliding-groove matching with left friction plate front end that described pitman arm shaft is provided with are arc shaped surface, and the middle part of bottom surface is concave shape structure.
In above-mentioned hub type brake, when manually pulling swing arm by bracing wire, swing arm drives pitman arm shaft to rotate; the sliding-groove matching with left friction plate front end that pitman arm shaft is provided with; promote left friction plate front end and move to the left; left friction plate rear end promotes right friction plate rear end by slide-bar; because right friction plate front end is positioned at adjusting bolt chute; adjusting bolt is arranged in splined nut; left end and the pitman arm shaft of splined nut offset, and the concentric circle that therefore at this moment left friction plate and right friction plate form and brake hub cooperatively interact and realize braking function.In above-mentioned braking process, owing to having adopted slide-bar, and left friction plate rear end and right friction plate rear end match with left chute and the right rail of slide-bar respectively, thereby make left friction plate rear end and right friction plate rear end can realize two dimensional motion, can realize motion all around, simultaneously because pitman arm shaft is provided with the sliding-groove matching with left friction plate front end, and left end and the pitman arm shaft of described splined nut offset, when manually pulling swing arm by bracing wire, swing arm drives pitman arm shaft to rotate, sliding-groove on pitman arm shaft promotes left friction plate front end and moves to the left, just can realize braking function, promote to the left, a direction firmly, therefore promote with right side to the left with prior art, both direction is firmly compared, brake operating is more laborsaving, thereby be conducive to the safety brake of vehicle.Reality detects and shows, existing braking power used is 40% of prior art, and therefore artificial brake operating is lighter.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of hub type brake of the utility model.
Fig. 2 is the worm's eye view of hub type brake shown in Fig. 1.
Fig. 3 is the plan view of hub type brake shown in Fig. 1.
1. shells in figure, 2. left friction plate, 3. slide-bar, 4. rear fixed base, 5. rear Returnning spring, 6. left friction plate front end, 7. right friction plate, 8. pitman arm shaft, 9. ratchet fixed plate, 10. leaf spring, 11. front fixed bases, 12. adjusting bolts, 13. right friction plate rear ends, 14. splined nuts, 15. spline ratchets, 16. rocking arms, 17. ratchets, 18. front Returnning springs, 19. projections, 20. limiting stoppers, 21. sliding-grooves, 22. torsion springs, 23. left chutes, 24. right rails.
Embodiment
In Fig. 1, Fig. 2 and Fig. 3, a kind of hub type brake, contains shell 1, rocking arm 16, torsion spring 22, is movably arranged on left friction plate 2 and right friction plate 7 on shell 1.The rear end of shell 1 is provided with rear fixed base 4, is provided with rear Returnning spring 5 and front Returnning spring 18 between left friction plate 2 and right friction plate 7.The front end of shell 1 is provided with front fixed base 11, the interior movable splined nut 14 that arranges of front fixed base 11, spline ratchet 15 is set on splined nut 14, in splined nut 14, is provided with adjusting bolt 12, in adjusting bolt 12, be provided with the chute matching with right friction plate front end 13.Above-mentioned hub type brake also contains pitman arm shaft 8 and slide-bar 3.Pitman arm shaft 8 is installed in the through hole matching with pitman arm shaft 8 being provided with in described shell 1.The upper end of pitman arm shaft 8 is provided with spline ratchet striking gear, and the lower end of pitman arm shaft 8 is connected with described rocking arm 16, and rocking arm 16 is connected with described shell 1 by described torsion spring 22.The left end of described splined nut 14 and pitman arm shaft 8 offset.Pitman arm shaft 8 is provided with the sliding-groove 21 matching with left friction plate front end 6.Described rocking arm 16 is provided with projection 19, and described shell 1 edge is provided with limiting stopper 20, the projection 19 that this limiting stopper 20 is provided with for stopping rocking arm 16.Described rear fixed base 4 is provided with the slide-bar hole matching with slide-bar 3, the left end of slide-bar 3 is provided with the left chute 23 matching with left friction plate 2 rear ends, the right-hand member of slide-bar 3 is provided with the right rail 24 matching with right friction plate 7 rear ends, and the bottom surface of described left chute 23 and right rail 24 is arc shaped surface.Described spline ratchet striking gear comprises the ratchet 17 cooperatively interacting with spline ratchet 15, be fixedly installed on ratchet fixed plate 9 and the leaf spring 10 of pitman arm shaft 8 upper ends, ratchet 17 is installed in the mounting hole on ratchet fixed plate 9, in the upper end of ratchet 17, be provided with ratchet positioning block, the right-hand member of leaf spring 10 is arranged in the groove that ratchet positioning block is provided with.Movement for the ease of right friction plate front end 13 in adjusting bolt 12 chutes, described adjusting bolt 12 bottom surface that be provided with and the chute that right friction plate front end 13 matches is arc shaped surface.For saving cost and being convenient to, install, described leaf spring 10 is loop configuration.For ease of operation, described pitman arm shaft 8 two ends, bottom surface that be provided with and the sliding-groove that left friction plate front end 6 matches are arc shaped surface, and the middle part of bottom surface is concave shape structure.Under normal state, rocking arm 16 is under the effect of torsion spring 22, and the projection 19 that rocking arm 16 is provided with withstands on the limiting stopper 20 that described shell 1 edge is provided with, and makes rocking arm 16 spacing.During braking, manually by bracing wire, pull swing arm 16, swing arm 16 drives pitman arm shaft 8 to rotate, pitman arm shaft 8 sliding-groove that be provided with and that left friction plate front end 6 matches promotes left friction plate front end 6 and moves to the left, the rear end that left friction plate 2 rear ends promote right friction plate 7 by slide-bar 3, because right friction plate front end 13 is positioned at adjusting bolt 12 chutes, adjusting bolt 12 is arranged in splined nut 14, the left end of splined nut 14 and pitman arm shaft 8 offset, therefore the concentric circle that at this moment left friction plate 2 and right friction plate 7 form and the interior side contacts of brake hub cooperatively interact and realize braking, brake hub does not show in the drawings.In above-mentioned braking process, owing to having adopted slide-bar 3, and the rear end of the rear end of left friction plate 2 and right friction plate 7 matches with left chute 23 and the right rail 24 of slide-bar 3 respectively, thereby make the rear end of left friction plate 2 and the rear end of right friction plate 7 can realize two dimensional motion, can realize motion all around, simultaneously because pitman arm shaft 8 is provided with the sliding-groove matching with left friction plate front end 6, and the left end of described splined nut 14 and pitman arm shaft 8 offset, when manually pulling swing arm 16 by bracing wire, swing arm 16 drives pitman arm shaft 8 to rotate, sliding-groove on pitman arm shaft 8 promotes left friction plate front end 6 and moves to the left, just can realize braking function, promote to the left, a direction firmly, therefore promote with right side to the left with prior art, both direction is firmly compared, brake operating is more laborsaving, thereby be conducive to the safety brake of vehicle.Reality detects and shows, existing braking power used is 40% of prior art, and therefore artificial brake operating is lighter.When the wearing and tearing of left friction plate 2 and right friction plate 7 reach a certain amount of; the ratchet 17 of pitman arm shaft 8 upper ends is under the drive of pitman arm shaft 8; promote the tooth on spline ratchet 15; make spline ratchet 15 rotate an angle; at this moment adjusting bolt 12 moves a distance laterally, thereby compensated the wear extent of left friction plate 2 and right friction plate 7.
Claims (5)
1. a hub type brake, contain shell, rocking arm, torsion spring, be movably arranged on left friction plate and right friction plate on shell, the rear end of shell is provided with rear fixed base, between left friction plate and right friction plate, be provided with rear Returnning spring and front Returnning spring, the front end of shell is provided with front fixed base, movable splined nut is set in front fixed base, spline ratchet is set on splined nut, in splined nut, be provided with adjusting bolt, in adjusting bolt, be provided with the chute matching with right friction plate front end, it is characterized in that: also contain pitman arm shaft and slide-bar, pitman arm shaft is installed in the through hole matching with pitman arm shaft being provided with in described shell, the upper end of pitman arm shaft is provided with spline ratchet striking gear, the lower end of pitman arm shaft is connected with described rocking arm, rocking arm is connected with described shell by described torsion spring, left end and the pitman arm shaft of described splined nut offset, pitman arm shaft is provided with the sliding-groove matching with left friction plate front end, described rocking arm is provided with projection, described shell edge is provided with limiting stopper, this limiting stopper is for stopping the projection that rocking arm is provided with, described rear fixed base is provided with the slide-bar hole matching with slide-bar, the left end of slide-bar is provided with the left chute matching with left friction plate rear end, the right-hand member of slide-bar is provided with the right rail matching with right friction plate rear end, the bottom surface of described left chute and right rail is arc shaped surface.
2. a kind of hub type brake according to claim 1, it is characterized in that: described spline ratchet striking gear comprises the ratchet cooperatively interacting with spline ratchet, be fixedly installed on ratchet fixed plate and the leaf spring of pitman arm shaft upper end, ratchet is installed in the mounting hole on ratchet fixed plate, in the upper end of ratchet, be provided with ratchet positioning block, the right-hand member of leaf spring is arranged in the groove that ratchet positioning block is provided with.
3. a kind of hub type brake according to claim 1, is characterized in that: the bottom surface of the chute matching with right friction plate front end that described adjusting bolt is provided with is arc shaped surface.
4. a kind of hub type brake according to claim 1, is characterized in that: described leaf spring is loop configuration.
5. a kind of hub type brake according to claim 1, is characterized in that: the two ends of the bottom surface of the sliding-groove matching with left friction plate front end that described pitman arm shaft is provided with are arc shaped surface, and the middle part of bottom surface is concave shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320629227.3U CN203488599U (en) | 2013-10-13 | 2013-10-13 | Hub type brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320629227.3U CN203488599U (en) | 2013-10-13 | 2013-10-13 | Hub type brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203488599U true CN203488599U (en) | 2014-03-19 |
Family
ID=50259435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320629227.3U Expired - Fee Related CN203488599U (en) | 2013-10-13 | 2013-10-13 | Hub type brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203488599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486158A (en) * | 2013-10-13 | 2014-01-01 | 盐城市诚良高尔夫电动车配件有限公司 | Hub type brake |
-
2013
- 2013-10-13 CN CN201320629227.3U patent/CN203488599U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486158A (en) * | 2013-10-13 | 2014-01-01 | 盐城市诚良高尔夫电动车配件有限公司 | Hub type brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20151013 |
|
| EXPY | Termination of patent right or utility model |