CN211715581U - Electric bicycle and electric motorcycle drum brake structure with surface contact brake - Google Patents
Electric bicycle and electric motorcycle drum brake structure with surface contact brake Download PDFInfo
- Publication number
- CN211715581U CN211715581U CN201922076290.9U CN201922076290U CN211715581U CN 211715581 U CN211715581 U CN 211715581U CN 201922076290 U CN201922076290 U CN 201922076290U CN 211715581 U CN211715581 U CN 211715581U
- Authority
- CN
- China
- Prior art keywords
- brake
- gear shaft
- drum
- driven gear
- driving
- 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.)
- Active
Links
- 238000003801 milling Methods 0.000 claims description 40
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000002337 anti-port Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model provides an electric bicycle, electric motorcycle drum structure of stopping with surface contact braking, its characterized in that includes that the drum stops support, driving gear axle, gap bridge ring gear, driven gear axle, brake shoe supporting shoe and reset spring, wherein driving gear axle, driven gear axle install respectively in on the driving gear axle mounting hole and the driven gear axle mounting hole of the support are stopped to the drum, the gap bridge ring gear install in on the support ring seat of the support is stopped to the drum, the brake shoe supporting shoe install in on the support is stopped to the drum. The synchronous driving structure of the driving gear shaft and the driven gear shaft is adopted, so that the traditional rotary brake of the brake shoe is changed into translational brake, the traditional line contact of the brake surface is changed into surface contact, the brake capacity of the brake drum is effectively improved, the abrasion speed of the brake shoe is reduced, and the service life of the whole brake device is prolonged. The utility model discloses simple structure, compactness can directly satisfy current electric bicycle, electric motorcycle's use.
Description
Technical Field
The utility model belongs to electric bicycle, electric motorcycle car drum brake field, concretely relates to electric bicycle, electric motorcycle car drum structure of stopping with face contact braking.
Background
The brake systems of the electric bicycle and the electric motorcycle are key parts related to the safety of people and vehicles, most drum brakes of the existing electric bicycle and the electric motorcycle are leading shoe type brakes, brake shoes of the existing electric bicycle and the existing electric motorcycle are in surface-to-surface contact with brake drums from points, the brake efficiency is relatively low, and the abrasion degree of a leading shoe friction plate is uneven due to unequal brake torque applied to the brake drums by the leading shoes, so that the brake effect is influenced, and the service life is prolonged.
Therefore, the utility model provides an electric bicycle, electric motorcycle car drum structure of stopping in view of the above-mentioned problem provides, and traditional drum brake shoe has been overcome to this structure because of the line contact defect that the rotary braking produced, and translational motion through the brake shoe makes brake shoe and wheel hub brake hole realize big face friction contact, has improved braking effect by a wide margin to effectively prolong the life-span of stopper, solved the not enough that traditional drum stopped.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides a gear drive structure and is applied to electric bicycle, electric motorcycle's drum brake, and it can realize the even pressure distribution on the brake drum friction surface, and then realizes the even wearing and tearing of brake shoe friction disc, has effectively solved the lower problem of the braking efficiency who leads from shoe brake, has improved whole arresting gear's life.
The technical scheme of the utility model as follows:
a drum brake structure of an electric bicycle and an electric motorcycle with surface contact brake comprises a drum brake bracket 1, a driving gear shaft 2, a gap bridge gear ring 3, a driven gear shaft 4, a brake shoe 5, a brake shoe supporting block 6 and a return spring 7, wherein the driving gear shaft 2 and the driven gear shaft 4 are respectively arranged on a driving gear shaft mounting hole 8 and a driven gear shaft mounting hole 9 of the drum brake bracket 1, the gap bridge gear ring 3 is arranged on a supporting ring seat 10 of the drum brake bracket 1, the brake shoe supporting block 6 is arranged on the drum brake bracket 1, the brake shoes 5 are symmetrically arranged on the brake shoe supporting blocks 6, hooks at two ends of the return spring 7 are arranged in spring connecting holes 11 of the brake shoes 5, the brake shoe driving surface 12 clamps the first mill flat structure 130 of the driving gear shaft 2 and the second mill flat structure 131 of the driven gear shaft 4 under the counter-pulling action of the return spring 7.
The driving gear shaft 2 is a source braking force input shaft, a first milling structure 130 is arranged at one end of the driving gear shaft, the milling part of the first milling structure 130 is matched with the brake shoe driving surface 12, and the first milling structure 130 rotates along with the driving gear shaft 2 to prop open a brake shoe; the middle part design of driving gear axle 2 has driving gear axle drive gear 14, the driving gear axle 2's the other end passes driving gear axle mounting hole 8 on the drum support of stopping 1, carries on spacingly through nut 15, links to each other with the hand (hold) brake cable and transmits brake source power.
The intermediate gear ring 3 is an intermediate gear, wherein the intermediate gear ring 3 is installed on the support ring seat 10 of the drum brake support 1, the gear teeth of the intermediate gear ring 3 are processed locally, the processing angle is 60 degrees, and the two parts of local gear teeth are symmetrically distributed.
The driven gear shaft 4 is a driven gear shaft, wherein one end of the driven gear shaft is provided with a second flat milling structure 131, the flat milling part of the second flat milling structure 131 is matched with the brake shoe driving surface 12, and the second flat milling structure 131 rotates along with the driven gear shaft 4 to open the brake shoe; the middle part of the driven gear shaft 4 is provided with a driven gear shaft transmission gear 16, and the other end of the driven gear shaft 4 penetrates through a driven gear shaft mounting hole 9 on the drum brake bracket 1 and is limited through a nut 15.
The driving gear shaft 2 and the driven gear shaft 4 are symmetrically arranged along the gap bridge gear ring 3, the thickness of the gap bridge gear ring 3 is larger than the thickness of a driving gear shaft transmission gear 14 and a driven gear shaft transmission gear 16 which are meshed with the gap bridge gear ring 3, the lower surfaces of the first milling flat structure 130 and the second milling flat structure 131 are pressed on the end surface of the gap bridge gear ring 3 to axially limit the gap bridge gear ring 3, and the milling flat parts of the first milling flat structure 130 and the second milling flat structure 131 are matched with the brake shoe driving surface 12.
In the during operation, brake source power transmits drive gear shaft 2 is gone up and is driven its rotation, drive gear shaft 2 with 3 meshing drive bridge ring gear 3 antiport of bridge ring gear, bridge ring gear 3 with driven gear shaft 4 meshes, and then the drive driven gear shaft 4 with drive gear shaft 2 is synchronous, the syntropy is rotatory, and further, first mill flat structure 130 and second mill flat structure 131 and respectively along with drive gear shaft 2 and driven gear shaft 4 rotatory, and then strut in step and be pressed from both sides tight brake shoe 5 by reset spring 7 pair pulling, make it separate to both sides simultaneously along drum brake support 1 center radial, and then produce the braking frictional force with wheel hub braking hole face contact and realize the braking, accomplish the braking process of the brake drum to this.
The utility model discloses an useful part lies in:
(1) the synchronous driving structure of the driving gear shaft and the driven gear shaft is adopted, so that the traditional rotary brake of the brake shoe is changed into translational brake, the traditional line contact of the brake surface is changed into surface contact, the brake capacity of the brake drum is effectively improved, the abrasion speed of the brake shoe is reduced, and the service life of the whole brake device is prolonged.
(2) The manufacturing device has simple and compact structure, and can directly meet the use requirements of the existing electric bicycles and electric motorcycles.
Drawings
Fig. 1 is a perspective view of the drum brake structure of the present invention.
Fig. 2 is the assembly exploded view of the drum brake structure of the utility model.
Fig. 3 is a perspective view of the driving gear shaft of the drum brake gear transmission structure of the present invention.
Fig. 4 is a perspective view of the gap bridge gear ring of the drum brake gear transmission structure of the present invention.
Fig. 5 is a perspective view of the bottom structure of the present invention.
Fig. 6 is a perspective view of the drum brake gear transmission structure of the present invention.
In the figure: 1. a drum brake bracket; 2. a driving gear shaft; 3. a carrier gear ring; 4. a driven gear shaft; 5. a brake shoe; 6. a brake shoe support block; 7. a return spring; 8. a driving gear shaft mounting hole; 9. a driven gear shaft mounting hole; 10. a carrier gear ring support ring seat; 11. a spring connecting hole; 12. a brake shoe drive face; 130. a first milling flat structure; 131. a second milling flat structure; 14. a driving gear shaft transmission gear; 15. a nut; 16. the driven gear shaft drives the gear.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1 to 6, the drum brake structure of the present invention is shown in fig. 1 and 2, and comprises a drum brake bracket 1, a driving gear shaft 2, a carrier ring gear 3, a driven gear shaft 4, brake shoes 5, brake shoe support blocks 6 and a return spring 7, wherein the driving gear shaft 2 and the driven gear shaft 4 are respectively arranged on a driving gear shaft mounting hole 8 and a driven gear shaft mounting hole 9 of the drum brake bracket 1, the gap bridge gear ring 3 is arranged on a supporting ring seat 10 of the drum brake bracket 1, the brake shoe supporting block 6 is arranged on the drum brake bracket 1, the brake shoes 5 are symmetrically arranged on the brake shoe supporting blocks 6, hooks at two ends of the return spring 7 are arranged in spring connecting holes 11 of the brake shoes 5, the brake shoe driving surface 12 clamps the first milled flat structure 130 of the driving gear shaft 2 and the second milled flat structure 131 of the driven gear shaft 4 under the counter-pulling action of the return spring 7.
Specifically, the driving gear shaft 2 embodiment is shown in fig. 3 and includes a driving gear shaft 2, the driving gear shaft 2 is a source braking force input shaft, one end of the driving gear shaft is provided with a first milling flat structure 130, a milling flat part of the first milling flat structure 130 is matched with the brake shoe driving surface 12, and the first milling flat structure 130 rotates with the driving gear shaft 2 to prop open the brake shoe; the middle part design of driving gear axle 2 has driving gear axle drive gear 14, the driving gear axle 2's the other end passes driving gear axle mounting hole 8 on the drum support of stopping 1, carries on spacingly through nut 15, links to each other with the hand (hold) brake cable and transmits brake source power.
Specifically, the embodiment of the carrier ring gear 3 is shown in fig. 4, and includes the carrier ring gear 3, the carrier ring gear 3 is an intermediate gear, wherein the carrier ring gear 3 is installed on the support ring seat 10 of the drum brake bracket 1, the gear teeth of the carrier ring gear 3 are processed locally, the processing angle is 60 °, and the two parts of local gear teeth are distributed symmetrically.
Specifically, the driven gear shaft 4 is shown in fig. 5, and includes a driven gear shaft 4, where the driven gear shaft 4 is a driven gear shaft, one end of the driven gear shaft is provided with a second milled flat structure 131, a milled flat portion of the second milled flat structure 131 is matched with the brake shoe driving surface 12, and the second milled flat structure 131 rotates with the driven gear shaft 4 to spread the brake shoe; the middle part of the driven gear shaft 4 is provided with a driven gear shaft transmission gear 16, and the other end of the driven gear shaft 4 penetrates through a driven gear shaft mounting hole 9 on the drum brake bracket 1 and is limited through a nut 15.
Specifically, the drum brake gear transmission structure is shown in fig. 6, and includes a driving gear shaft 2, a gap bridge gear ring 3, a driven gear shaft 4 and a brake shoe 5, where the driving gear shaft 2 and the driven gear shaft 4 are symmetrically arranged along the gap bridge gear ring 3, and is characterized in that the thickness of the gap bridge gear ring 3 is greater than the thickness of a driving gear shaft transmission gear 14 and a driven gear shaft transmission gear 16 engaged therewith, the lower surfaces of a first flat milling structure 130 and a second flat milling structure 131 are pressed on the end surface of the gap bridge gear ring 3 to axially limit the gap bridge gear ring 3, and the flat milling portions of the first flat milling structure 130 and the second flat milling structure 131 are matched with a brake shoe driving surface 12; during operation, brake source power transmits it is rotatory to drive on the driving gear axle 2, driving gear axle 2 with 3 meshing drive bridge ring gear 3 antiport of bridge ring gear, bridge ring gear 3 with driven gear shaft 4 meshes, and then the drive driven gear shaft 4 with driving gear axle 2 is synchronous, the syntropy is rotatory, and further, first mill flat structure 130 and second mill flat structure 131 are rotatory along with driving gear axle 2 and driven gear shaft 4 respectively, and then strut in step and be tightly 5 by reset spring 7 pair pulling clamp's brake shoe, make it separate to both sides simultaneously along drum brake support 1 center radial, and then produce the braking frictional force with wheel hub braking hole face contact and realize the braking, accomplish the braking process of the drum of stopping to this.
According to the utility model discloses, electric bicycle, electric motorcycle drum are stopped including drum support, driving gear axle, gap bridge ring gear, driven gear axle, brake shoe supporting shoe etc. of stopping.
And the drum brake support is provided with a gap bridge gear ring support ring seat, a driving/driven gear shaft mounting hole, a brake shoe support block and other structures. The gap bridge gear ring is arranged on a supporting ring seat of the drum brake bracket.
And a driving gear shaft mounting hole and a driven gear shaft mounting hole are respectively formed in two sides of a gap bridge gear ring support ring seat of the drum brake support and used for mounting a driving/driven gear shaft. The driving/driven gear shaft is characterized in that a transmission gear is arranged in the middle of the shaft, and one end of the shaft is provided with a milling flat structure which is matched with a driving surface of the brake shoe.
The paired brake shoes are symmetrically arranged and are arranged on the brake shoe supporting blocks, and the driving surfaces of the brake shoes are clamped on the milled flat parts of the driving/driven gear shafts by utilizing a return spring opposite-pulling structure. When the driving/driven gear shaft rotates, the brake shoe can be driven to be spread towards two sides through the flat milling part of the shaft.
Further, this utility model discloses a transmission system of device characterized in that, the hand (hold) brake cable is rotatory with brake source power transmission to the epaxial drive driving gear axle of driving gear, and driving gear axle drive gap bridge ring gear counter-rotation, gap bridge ring gear further drive driven gear axle and driving gear axle syntropy rotatory, and then realize synchronous, the syntropy rotation of driving gear axle and driven gear axle.
Further, the braking principle of the device is that when the driving gear shaft and the driven gear shaft rotate synchronously, the closed brake shoes are spread by utilizing a shaft end milling structure. The brake shoes are synchronously propped open by the driving/driven gear shaft, so that the symmetrically arranged brake shoes are simultaneously separated to two sides along the radial direction of the center of the drum brake bracket, and further generate braking friction force with the inner hole surface of the hub brake to realize braking.
Claims (6)
1. The utility model provides an electric bicycle, electric motorcycle drum structure of stopping with surface contact braking, its characterized in that includes drum support (1), driving gear shaft (2), gap bridge ring gear (3), driven gear shaft (4), brake shoe (5), brake shoe supporting shoe (6), reset spring (7) and brake shoe drive face (12) of stopping, wherein driving gear shaft (2), driven gear shaft (4) are installed respectively on driving gear shaft mounting hole (8) and driven gear shaft mounting hole (9) of drum support (1) of stopping, gap bridge ring gear (3) are installed on the support ring seat (10) of drum support (1) of stopping, brake shoe supporting shoe (6) are installed on drum support (1), brake shoe (5) symmetrical arrangement is in on brake shoe supporting shoe (6), reset spring (7) both ends couple is installed in spring connecting hole (11) of brake shoe (5), the brake shoe driving surface (12) clamps the first milling flat structure (130) of the driving gear shaft (2) and the second milling flat structure (131) of the driven gear shaft (4) under the opposite pulling action of the return spring (7).
2. The electric bicycle and motorcycle drum brake structure with surface contact brake as claimed in claim 1, characterized in that the driving gear shaft (2) is a source brake force input shaft, wherein one end of the shaft is provided with a first mill flat structure (130), the mill flat part of the first mill flat structure (130) is matched with the brake shoe driving surface (12), and the first mill flat structure (130) rotates with the driving gear shaft (2) to open the brake shoe; the middle part design of driving gear axle (2) has driving gear axle drive gear (14), driving gear axle (2) the other end passes driving gear axle mounting hole (8) on drum brake support (1), carries on spacingly through nut (15), links to each other with the hand (hold) brake cable and transmits brake source power.
3. The drum brake structure of electric bicycle and motorcycle with surface contact brake as claimed in claim 1, wherein the carrier ring gear (3) is an intermediate gear, wherein the carrier ring gear (3) is mounted on the support ring seat (10) of the drum brake bracket (1), the gear teeth of the carrier ring gear (3) are partially machined, the machining angle is 60 °, and the two partial gear teeth are symmetrically distributed.
4. The electric bicycle and electric motorcycle drum brake structure with surface contact brake as claimed in claim 1, characterized in that the driven gear shaft (4) is a driven gear shaft, wherein one end of the shaft is provided with a second milling structure (131), the milling part of the second milling structure (131) is matched with the brake shoe driving surface (12), and the second milling structure (131) rotates with the driven gear shaft (4) to open the brake shoe; the middle part design of driven gear axle (4) has driven gear axle drive gear (16), the other end of driven gear axle (4) passes driven gear axle mounting hole (9) on drum support (1) of stopping, carries on spacingly through nut (15).
5. The electric bicycle and electric motorcycle drum brake structure with surface contact brake as claimed in claim 1, characterized in that the driving gear shaft (2) and the driven gear shaft (4) are symmetrically arranged along the carrier ring gear (3), the thickness of the carrier ring gear (3) is larger than the thickness of the driving gear shaft transmission gear (14) and the driven gear shaft transmission gear (16) engaged with the carrier ring gear, the lower surfaces of the first milling flat structure (130) and the second milling flat structure (131) are pressed on the end surface of the carrier ring gear (3) to axially limit the carrier ring gear (3), and the milling flat parts of the first milling flat structure (130) and the second milling flat structure (131) are matched with the brake shoe driving surface (12).
6. The drum brake structure of electric bicycle and motorcycle with surface contact brake as claimed in claim 1, wherein during operation, the brake source power is transmitted to the driving gear shaft (2) to drive it to rotate, the driving gear shaft (2) is meshed with the intermediate gear ring (3) to drive the intermediate gear ring (3) to rotate in reverse direction, the intermediate gear ring (3) is meshed with the driven gear shaft (4) to drive the driven gear shaft (4) to rotate synchronously and in the same direction as the driving gear shaft (2), further, the first milling flat structure (130) and the second milling flat structure (131) rotate with the driving gear shaft (2) and the driven gear shaft (4) respectively, and then the brake shoe (5) clamped by the reset spring (7) in opposite pulling manner is synchronously opened to separate simultaneously along the center of the drum brake bracket (1) to both sides in radial direction, and then the brake friction force is generated by the surface contact with the brake inner hole of the hub to realize the braking, and the drum braking process is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922076290.9U CN211715581U (en) | 2019-11-27 | 2019-11-27 | Electric bicycle and electric motorcycle drum brake structure with surface contact brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922076290.9U CN211715581U (en) | 2019-11-27 | 2019-11-27 | Electric bicycle and electric motorcycle drum brake structure with surface contact brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211715581U true CN211715581U (en) | 2020-10-20 |
Family
ID=72815180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922076290.9U Active CN211715581U (en) | 2019-11-27 | 2019-11-27 | Electric bicycle and electric motorcycle drum brake structure with surface contact brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211715581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113925546A (en) * | 2021-10-25 | 2022-01-14 | 深圳市资福医疗技术有限公司 | Self-locking brake device and magnetic anchoring equipment applying same |
-
2019
- 2019-11-27 CN CN201922076290.9U patent/CN211715581U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113925546A (en) * | 2021-10-25 | 2022-01-14 | 深圳市资福医疗技术有限公司 | Self-locking brake device and magnetic anchoring equipment applying same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6312392B2 (en) | In-wheel motor drive device | |
| CN211715581U (en) | Electric bicycle and electric motorcycle drum brake structure with surface contact brake | |
| CN210196326U (en) | Brake and brake transmission system with same | |
| CN203796806U (en) | Cycloidal pin gear type electronic parking brake | |
| CN103644218B (en) | A kind of composite electronic mechanical brake | |
| CN110966325B (en) | Electric bicycle and electric motorcycle drum brake structure with surface contact brake | |
| CN202023864U (en) | Electromechanical brake | |
| CN214146365U (en) | Guide shaft type electromagnetic adsorption double-disc brake | |
| CN217761948U (en) | Piston-pushing type differential locking structure with friction plate | |
| JP4556650B2 (en) | Brake device for vehicle | |
| CN201777807U (en) | Hydraulic windlass | |
| WO2013139294A1 (en) | Automatically compressing and friction-driven speed reduction device | |
| CN101846149B (en) | Multi-disc brake | |
| CN205401610U (en) | Wheel limit drive speed reducer | |
| CN102602376B (en) | Energy-saving mechanism for storing and outputting energy in the same direction | |
| JP2001280377A (en) | Caliper body mounting structure of disc brake for vehicle | |
| CN206336115U (en) | Electronic ATV motor integrations back axle | |
| CN215097515U (en) | Braking device of automatic driving sweeper | |
| CN115059703B (en) | Brake disc capable of effectively improving braking effect | |
| CN217401505U (en) | Brake bottom plate | |
| CN209813950U (en) | Novel tractor braking system assembly | |
| CN107054031A (en) | Electronic ATV motor integrations back axle | |
| CN209892658U (en) | Brake of dumper | |
| CN218771623U (en) | Winch speed reduction motor with ratchet wheel brake | |
| CN2607319Y (en) | Differential braking rear axle device for motorcycle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |