CN202686657U - One-turn two-action electric vehicle brake - Google Patents
One-turn two-action electric vehicle brake Download PDFInfo
- Publication number
- CN202686657U CN202686657U CN 201220378678 CN201220378678U CN202686657U CN 202686657 U CN202686657 U CN 202686657U CN 201220378678 CN201220378678 CN 201220378678 CN 201220378678 U CN201220378678 U CN 201220378678U CN 202686657 U CN202686657 U CN 202686657U
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- Prior art keywords
- brake
- brake shoe
- cam
- box
- fuse
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- Expired - Fee Related
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Abstract
The utility model relates to an electric vehicle servo brake, and provides a one-turn two-action electric vehicle brake. The one-turn two-action electric vehicle brake is mainly characterized in that the left end of an upper brake shoe inside a brake box is hinged with the left end of a lower brake shoe through a hinge, and a hinge rotating shaft is fixed on the brake box; the right end of the upper brake shoe is not contacted with the right end of the lower brake shoe, a cam installation position is reserved between the right ends of the upper and the lower brake shoes, and the brake box on the cam installation position is provided with a cam shaft, a cam and a crank through a shaft; and the cam is provided with two working surfaces, and the cam rotates can simultaneously drive the upper and the lower brake shoes to extend outwards. The brake is more applicable to the long-time riding compared with the traditional servo brake; and moreover, the brake effect is good, the controllability is high, the production resource is also saved, the comprehensive performance is remarkably improved compared with the traditional brake, and the possibility of the brake failure is effectively prevented.
Description
Technical field
The utility model relates to electric vehicle servo brake, and specifically a kind of one turns two dynamic formula brake of electric vehicles.
Background technology
Under driving, brake cable spurred crank throw at the servant brake that battery-driven car is installed in the past, cam is rotated, under cam promotes, brake disc is pushed down in lower brake shoe footpath outwards Zhang Shouxian, produce the first braking force, the first braking force is not enough to disk brake lock when the speed of a motor vehicle is higher, the driver will continue pulling brake cable power cam increase corner and further push lower brake shoe and do circumferential movement this moment, lower brake shoe is done circumferential movement and is pushed outside of brake shoe footpath, push down brake disc and produce the second braking force, the axletree that is connected with brake disc is stopped operating.There is following problem in this servant brake: the principle of 1. braking complexity, and therefore the kinematic pair between the parts is more, a plurality of retracing springs need to be set all parts station is resetted, and causes spurring the spring resistance that brake cable need overcome larger, is prone to the brake fault; Need at first to satisfy the first braking force when 2. braking at a high speed, the second braking force competence exertion effect, producing the second braking force needs cam to make larger corner, need to make larger displacement when therefore the rim brake of battery-driven car drives the brake cable power cam, cause taking full advantage of the finite space between rim brake and the handlebar, often rim brake pinches end braking force and also is not enough to brake; 3. waste resource, when low speed brakes, lower brake shoe at first contacts brake disc, upper brake shoe may be just motionless, the inevitable serious wear of therefore lower brake shoe, cause this servant brake the brake failure problem will inevitably occur in use for some time, need the timely brake that more renews, but the little upper brake shoe of the wearing and tearing in the used car lock but is dropped waste; 4. the hinge axis of going up brake shoe and lower brake shoe hinge adopts mode and the fuse-box slidably regulated to be connected and fixed, for example in the hole of fuse-box processing prolate shape hinge axis is installed, just can guarantee the activity of upper brake shoe, but the fixed form of slidably regulating, after parts get rusty aging or stop up, become and be fastenedly connected, cause on the contrary brake shoe stiff, thereby can not produce the second braking force to brake disc, these all are the potential risks that causes brake failure.
The utility model content
The utility model is that to address the above problem the technical scheme of taking be that design a kind of one turns two dynamic formula brake of electric vehicles, its structure comprises fuse-box, the fuse-box medial surface relatively be provided with semi-round on brake shoe and lower brake shoe, the left end of the left end of upper brake shoe and lower brake shoe is chain connection, and the hinge rotating shaft is fixed on the fuse-box; The right-hand member of described upper and lower brake shoe does not contact, and is reserved with the cam installation position, and axle is provided with camshaft on the fuse-box at place, cam installation position, and the inner of camshaft is provided with cam, and the outer end of camshaft is provided with crank throw; The driving surface of described cam has two to be respectively left driving surface and right driving surface, and left driving surface can promote lower brake shoe and expands outwardly when cam rotated, and right driving surface can promote brake shoe and expand outwardly; Connect retracing spring between the right-hand member of described upper and lower brake shoe; Form the brake disc chamber between the outer rim of described upper and lower brake shoe and the inner edge of fuse-box.
The utility model adopts technique scheme, and comparing with servant brake in the past has the following advantages: 1. simple in structure, only between two brake shoes, connect a retracing spring, and the spring resistance that hand brake action need overcome is less, and the hand of riding for a long time is unsuitable tired; 2. braking effect is good, and cam has two driving surfaces, once rotates can to drive upper and lower two brake shoes and expand outwardly simultaneously and push down brake disc, produces simultaneously first, second braking force, the heavy braking wheel; 3. owing to adopting one to turn two dynamic formula structures, cam once rotates the more double braking force of brake of generation, therefore dubs rim brake and can realize braking, and actv. has utilized the finite space between rim brake and the handlebar; 4. economize on resources, because upper and lower brake shoe is braked brake disc simultaneously, their rate of depreciation is equal, and when needs were changed brake disc, two brake shoes should all be scrapped replacing, do not have waste.One turns two dynamic formula brakes in sum, rides when being more suitable for length, and braking effect is good, controllability is high, has saved the resources of production, and the existing brake of its Combination property has had significant raising, the most important thing is to sum up above-mentioned improvement, the malfunctioning probability of brake appearance has obtained actv. and has stopped.
Description of drawings
Fig. 1 is the structural representation that the utility model one turns two dynamic formula brake embodiment 1.
Fig. 2 is the structural representation that the utility model one turns two dynamic formula brake embodiment 2.
Fig. 3 is the structural representation that the utility model one turns two dynamic formula brake embodiment 4.
The specific embodiment
Embodiment 1 of the present utility model, referring to Fig. 1, a kind of one turns two dynamic formula brake of electric vehicles, its structure comprises fuse-box 1, fuse-box 1 medial surface relatively be provided with semi-round on brake shoe 2 and lower brake shoe 3, the left end of the left end of upper brake shoe 2 and lower brake shoe 3 is chain connection, and hinge rotating shaft 4 is fixed on the fuse-box 1, described hinge rotating shaft 4 can be used hinge bolt, pass through bolt between hinge bolt and the fuse-box 1, nut is connected and fixed, on described, the right-hand member of lower brake shoe 2,3 does not contact, and is reserved with the cam installation position, axle is provided with the camshaft (not shown) on the fuse-box 1 at place, cam installation position, the inner of camshaft is provided with cam 5, and the outer end of camshaft is provided with crank throw 6, and concrete mode is to offer a through hole (not shown) at fuse-box 1, camshaft adopts bolt, bolt is located in the through hole, and at bolt bolt head place welding cam 5, bolt tail place is fastenedly connected crank throw 6; The driving surface of described cam 5 has two to be respectively left driving surface 5.1 and right driving surface 5.2, and left driving surface 5.1 can promote lower brake shoe 3 and expands outwardly when cam 5 rotated, and right driving surface 5.2 can promote brake shoe 2 and expand outwardly; Connect retracing spring 7 between the right-hand member of described upper and lower brake shoe 2,3, namely adopt extension spring, extension spring one end is fixed on the right-hand member of lower brake shoe 3, the other end is fixed on the right-hand member of brake shoe 2; Form brake disc chamber 8 between the inner edge of described upper and lower brake shoe 2,3 outer rim and fuse-box 1.
The utility model embodiment 2, referring to Fig. 2, a kind of one turns two dynamic formula brake of electric vehicles, and its structure comprises: in the structure of embodiment 1, the left end of described upper brake shoe 2 and lower brake shoe 3 is respectively and be between the fuse-box 1 and be rotationally connected.
The utility model embodiment 3, referring to Fig. 1, a kind of one turns two dynamic formula brake of electric vehicles, and its structure comprises: in the structure of embodiment 1, two driving surfaces 5.1,5.2 of described cam 5 are along the cam shaft Central Symmetry.
The utility model embodiment 4, referring to Fig. 3, a kind of one turns two dynamic formula brake of electric vehicles, and its structure comprises: in the structure of embodiment 1, the right-hand member of described upper and lower brake shoe 2,3 is respectively and be connected with retracing spring 7 between the fuse-box.
Claims (4)
1. one turns two dynamic formula brake of electric vehicles, comprises fuse-box, the fuse-box medial surface relatively be provided with semi-round on brake shoe and lower brake shoe, it is characterized in that the left end of described upper brake shoe and the left end of lower brake shoe are chain connection, and the hinge rotating shaft is fixed on the fuse-box; The right-hand member of described upper and lower brake shoe does not contact, and is reserved with the cam installation position, and axle is provided with camshaft on the fuse-box at place, cam installation position, and the inner of camshaft is provided with cam, and the outer end of camshaft is provided with crank throw; The driving surface of described cam has two to be respectively left driving surface and right driving surface, and left driving surface can promote lower brake shoe and expands outwardly when cam rotated, and right driving surface can promote brake shoe and expand outwardly; Connect retracing spring between the right-hand member of described upper and lower brake shoe; Form the brake disc chamber between the outer rim of described upper and lower brake shoe and the inner edge of fuse-box.
2. as claimed in claim 1 one turns two dynamic formula brake of electric vehicles, and the left end that it is characterized in that described upper brake shoe and lower brake shoe respectively and be between the fuse-box and be rotationally connected.
3. as claimed in claim 1 one turns two dynamic formula brake of electric vehicles, it is characterized in that two driving surfaces of described cam are along the cam shaft Central Symmetry.
4. as claimed in claim 1 one turns two dynamic formula brake of electric vehicles, it is characterized in that the right-hand member of described upper and lower brake shoe is connected retracing spring respectively with between the fuse-box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378678 CN202686657U (en) | 2012-07-24 | 2012-07-24 | One-turn two-action electric vehicle brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378678 CN202686657U (en) | 2012-07-24 | 2012-07-24 | One-turn two-action electric vehicle brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202686657U true CN202686657U (en) | 2013-01-23 |
Family
ID=47542312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220378678 Expired - Fee Related CN202686657U (en) | 2012-07-24 | 2012-07-24 | One-turn two-action electric vehicle brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202686657U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106005205A (en) * | 2016-06-07 | 2016-10-12 | 乔爱民 | Electric bicycle brake with bidirectional braking function |
-
2012
- 2012-07-24 CN CN 201220378678 patent/CN202686657U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106005205A (en) * | 2016-06-07 | 2016-10-12 | 乔爱民 | Electric bicycle brake with bidirectional braking function |
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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: 20130123 Termination date: 20150724 |
|
| EXPY | Termination of patent right or utility model |