CN204300193U - Elastomeric brakes - Google Patents
Elastomeric brakes Download PDFInfo
- Publication number
- CN204300193U CN204300193U CN201420768903.XU CN201420768903U CN204300193U CN 204300193 U CN204300193 U CN 204300193U CN 201420768903 U CN201420768903 U CN 201420768903U CN 204300193 U CN204300193 U CN 204300193U
- Authority
- CN
- China
- Prior art keywords
- brake block
- wheel
- brake
- sectional wheel
- cam
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model relates to a kind of elastomeric brakes, and it comprises hub for vehicle wheel, cam, several sectional wheel, three flat springs and several brake block; Described cam is positioned at hub for vehicle wheel center; Described sectional wheel is connecting shaft sectional wheel, and ring is located on cam; Described three flat springs are arranged on the outer ring of sectional wheel, and the inner side of each flat spring is provided with semi-circular recesses, and the axle of sectional wheel is arranged in the semi-circular recesses of flat spring; Described brake block is arranged on the inner edge of hub for vehicle wheel, and cam promotes sectional wheel, flat spring and brake block and does radial motion, makes brake block and wheel hub compress and realize braking; In braking procedure, sectional wheel only rotates and moves radially, and does not have circumferential movement, makes the stressed symmetry of brake block, stable movement thus; And at sectional wheel at ordinary times and cam in being mutually close to engage shape, make sectional wheel stably remain on initial position.The size of elastomeric brakes brake force of the present utility model easily controls, and braking ability is fine, and braking procedure feels very comfortable.
Description
Technical field
The utility model belongs to electromechanical assembly class, relates to the brake apparatus of machine-building, particularly a kind of elastomeric brakes.
Background technology
Brake is one of strength member of transport facility, and it is of a great variety.The brake that such as bicycle uses just has many types, as steel band type brake, disc brake, also useful cam driven disk, makes steel brake block compress the steel brake of hub for vehicle wheel, is the most simply to be pressed in brake on bicycle rim etc. with rubber bumper.These brake apparatus respectively have pluses and minuses: the brake structural as rubber bumper formula is simple and effectively, the size of brake force easily controls, but rubber easily weares and teares, and easily ageing hardening makes coefficient of friction reduce and cause retardation efficiency to decline; The advantage of steel brake is that its wearing and tearing are little and durable in use, but when it and hub contacts, due to both very hard, be out of shape very little, brake force is from zero in the scope of maximum, and the displacement of brake handle is too little, the size of brake force is not easy to control, and therefore feel is bad etc.
Because various brake more or less exists some shortcomings, therefore, researching and developing the better brake of new performance is one of important research and development problem of traffic transport industry.
Summary of the invention
Task of the present utility model is to provide a kind of elastomeric brakes, it utilizes cam to promote sectional wheel, flat spring and brake block and does radial motion, problems such as making brake block contact with hub for vehicle wheel and realize braking, solve that brake force size that above-mentioned prior art exists is not easy to control, easily wearing and tearing, feel are bad.
Technical solution of the present utility model is as follows:
A kind of elastomeric brakes, it comprises hub for vehicle wheel, and it also comprises a cam, several sectional wheel, three flat springs and several brake block;
Described cam is positioned at hub for vehicle wheel center;
Described sectional wheel is connecting shaft sectional wheel, and ring is located on cam;
Described three flat springs are arranged on the outer ring of sectional wheel, and the inner side of each flat spring is provided with semi-circular recesses, and the axle of sectional wheel is arranged in the semi-circular recesses of flat spring; Described flat spring has deflection, to control the size of brake force and to make comfortable feel when braking;
Described brake block is arranged on the inner edge of hub for vehicle wheel, and cam promotes sectional wheel, flat spring and brake block and does radial motion, makes brake block and wheel hub compress and realize braking;
In braking procedure, sectional wheel only rotates and moves radially, and does not have circumferential movement, makes the stressed symmetry of brake block, stable movement thus; And at sectional wheel at ordinary times and cam in being mutually close to engage shape, make sectional wheel stably remain on initial position.
The inner side of described each flat spring is provided with two semi-circular recesses, and the inner side of three flat springs is provided with six semi-circular recesses, in each semi-circular recesses, install a sectional wheel connecting shaft.
The quantity of described brake block is set to three, and brake block is steel brake block.
Described elastomeric brakes also comprises block; Described block is arranged on the side of brake block, makes circumferential movement to stop brake block.
The quantity of described block is set to three.
Described elastomeric brakes also comprises recovery spring; Described recovery spring is the thin plate spring, and the midpoint of this thin plate spring contacts with block, and the two ends of the thin plate spring contact with brake block.
The radius of curvature of the outer surface curve of described flat spring is less than the radius of curvature of brake block inner surface curve, in order to improve the performance of brake.
Elastomeric brakes of the present utility model utilizes cam to promote sectional wheel, flat spring and brake block and does radial motion, the rotation of its cam drives sectional wheel, flat spring is driven again by the axle of sectional wheel, flat spring promotes brake block again and does radial motion together, makes brake block and hub for vehicle wheel compress and realize braking.Because the distortion of flat spring makes the displacement of brake handle be directly proportional to the size of brake force in braking procedure, the size of brake force easily controls, and braking ability is fine, and braking procedure feels very comfortable.
Brake block of the present utility model adopts wear-resisting steel brake block.When the utility model is used for bicycle, the active force that distortion and it due to flat spring are subject to is directly proportional, and the size of brake force that therefore bicycle obtains is directly proportional to the displacement of brake handle.As long as design proper, brake force can be made from zero in the scope of maximum, and brake handle has certain displacement, accomplishes that the size of brake force can arbitrarily control, to meet the different requirements of different braking occasion to brake force.
Accompanying drawing explanation
Fig. 1 is the simplified diagram of a kind of elastomeric brakes structure of the present utility model.
Fig. 2 is the schematic diagram of the power of brake handle, brake force and brake handle displacement relation.
Fig. 3 is the on-position figure of elastomeric brakes of the present utility model.
Reference numeral:
1 is hub for vehicle wheel, and 2 is flat spring, and 3 is sectional wheel, and 4 is brake block, and 5 is block, and 6 for recovering spring, and 7 is cam.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is elaborated.
Referring to Fig. 1 to Fig. 3, the utility model provides a kind of elastomeric brakes, and this brake forms primarily of hub for vehicle wheel 1, cam 7, several sectional wheel 3, three flat springs 2, several brake block 4, block 5 and recovery spring 6.
Cam 7 is positioned at hub for vehicle wheel 1 center.Sectional wheel 3 is connecting shaft sectional wheel, namely arranges power transmission shaft at sectional wheel root.As shown in fig. 1, six sectional wheel 3 rings are located on cam 7.
Three flat springs 2 are arranged on the outer ring of sectional wheel 3, and the inner side of each flat spring 2 is provided with two semi-circular recesses, and the inner side of three flat springs 2 then arranges six semi-circular recesses.The axle of sectional wheel 3 is arranged in the semi-circular recesses of flat spring 2, namely in each semi-circular recesses, installs sectional wheel 3 connecting shaft, and a flat spring 2 is provided with two sectional wheels 3 above.Flat spring 2 has certain deflection when braking, and the size of brake force can arbitrarily be controlled, and comfortable feel.
Brake block 4 is arranged on the inner edge of hub for vehicle wheel 1, and the quantity of brake block 4 is set to three, and brake block 4 is steel brake block.Cam 7 promotes sectional wheel 3, flat spring 2 and brake block 4 and does radial motion, makes brake block 4 and wheel hub 1 compress and realize braking.Cam 7 can guarantee that sectional wheel 3 is got back to and stably remains on initial position.In braking procedure, sectional wheel 3 only rotates and moves radially, and does not have circumferential movement, makes the stressed symmetry of brake block 4, stable movement thus; And be mutually close to as gears meshing at sectional wheel 3 and cam 7 at ordinary times, make sectional wheel 3 stably remain on initial position.
Block 5 is arranged on the side of brake block 4, and the effect of block 5 stops brake block 4 to make circumferential movement.The quantity of block 5 is set to three.
Recovery spring 6 is very thin flat springs, and the midpoint of this thin plate spring contacts with block 5, and the two ends of the thin plate spring contact with brake block 4.Under spring force, brake block and wheel hub maintain a certain distance at ordinary times.When braking is unclamped, they make brake block return to initial position.
As shown in Figure 2, the radius of curvature of the outer surface curve of flat spring 2 is less than the radius of curvature of brake block 4 inner surface curve, in order to improve the performance of brake.Relation between the displacement B illustrating in braking procedure power P, brake force F and the brake handle acting on brake handle in Fig. 2.During original state, between brake block and wheel hub, there is certain gap.If the displacement of brake handle is B
0time, this gap is eliminated.Very little owing to recovering the rigidity of spring, eliminate the power that gap needs very little, can think the power P=0 eliminating gap, at this moment brake force F equals zero.With the increase putting forth effort P, cam promotes sectional wheel compressive plate spring further, the increase that the displacement of brake handle and brake force are linear with the increase of power P.When displacement increases to B
1time (corresponding brake force is F
1), flat spring is close to the inner surface of brake block and not redeformation because of its outer surface.After which, although brake force increases with the increase of power P, the displacement of brake handle no longer increases.When power P reaches maximum P
mtime, brake force one also arrives maximum F
m.
If there is no flat spring, the some B in Fig. 2
0and B
1overlap, the size of brake force is not easy to control.One of difference of Here it is elastomeric brakes of the present utility model and other brake.
The braking procedure of elastomeric brakes of the present utility model is as follows: during brake handle of holding with a firm grip, cam 7 rotates, while cam driven sectional wheel 3 rotates, sectional wheel drives flat spring 2 to do radial motion together by the axle of self, flat spring promotes brake block 4 and compresses with hub for vehicle wheel 1, the restriction that brake block is subject to block 5 can not make circumferential movement, and the frictional force between brake block and wheel hub plays the effect of braking.When brake handle is unclamped, the acting in conjunction recovering spring 6 and cam makes System recover to the original state in figure.
Flat spring plays a part key to the performance improving brake, and the radius of curvature of its outer surface curve is less than the radius of curvature of brake block inner surface curve.When not braking, only contact in midpoint between it with brake block, remainder is separated.When starting to brake, cam is delivered to the semi-circular recesses place of flat spring by axle to the power of sectional wheel.Owing to there being two sectional wheels above flat spring, be subject to the effect of two power, therefore, it is while transmitting force, and itself can produce distortion.This means that cam must rotate certain angle, namely brake handle must have certain displacement ability slurcam spring.The power being applied to brake handle is larger, and the deflection of flat spring, the displacement of brake handle and brake force are also larger.That is, the size of brake force is directly proportional to the displacement of brake handle.When the deflection of flat spring arrive greatly its outer surface contact completely with the inner surface of brake block time, the displacement of brake handle no longer increases with the increase of brake force.Obviously, brake handle in braking procedure can be made to have suitable displacement by the rigidity of adjustable plate spring, to control the size of brake force.
Another feature of the present utility model promotes brake block with sectional wheel, instead of promote brake block with cylinder.In braking procedure, sectional wheel only rotates and moves radially, and does not have circumferential movement, therefore, and the stressed symmetry of brake block, stable movement.In addition, when the external diameter of brake is identical, the cylindrical radius of radius ratio of sectional wheel is large, and contact stress is little.
Fig. 3 is the on-position figure of elastomeric brakes of the present utility model.Brake block contacts completely with hub for vehicle wheel, and flat spring reaches maximum distortion state, and its outer surface contacts completely with the inner surface of brake block.
In sum, elastomeric brakes of the present utility model utilizes cam to promote sectional wheel, flat spring and brake block and does radial motion, makes brake block contact with hub for vehicle wheel and realize braking; The stressed symmetry of brake block, stable movement.
Certainly, the schematic diagram of what those skilled in the art it should be known that Fig. 1 represents is elastomeric brakes of the present utility model is not to restriction of the present utility model.Promote brake block at use sectional wheel, and utilize spring to control in the scope of brake force, for the scope that any modification shown in Fig. 1 all will be the utility model claim.
Claims (7)
1. an elastomeric brakes, it comprises hub for vehicle wheel (1), it is characterized in that: it also comprises a cam (7), several sectional wheel (3), three flat springs (2) and several brake block (4);
Described cam (7) is positioned at hub for vehicle wheel (1) center;
Described sectional wheel (3) is connecting shaft sectional wheel, and ring is located on cam (7);
Described three flat springs (2) are arranged on the outer ring of sectional wheel (3), and the inner side of each flat spring (2) is provided with semi-circular recesses, and the axle of sectional wheel (3) is arranged in the semi-circular recesses of flat spring (2); Described flat spring (2) has deflection, to control the size of brake force and to make comfortable feel when braking;
Described brake block (4) is arranged on the inner edge of hub for vehicle wheel (1), and cam (7) promotes sectional wheel (3), flat spring (2) and brake block (4) and does radial motion, makes brake block (4) and wheel hub (1) compress and realize braking;
In braking procedure, sectional wheel (3) only rotates and moves radially, and does not have circumferential movement, makes brake block (4) stressed symmetry, stable movement thus; And at sectional wheel (3) at ordinary times and cam (7) in being mutually close to engage shape, make sectional wheel (3) stably remain on initial position.
2. elastomeric brakes according to claim 1, it is characterized in that: the inner side of described each flat spring (2) is provided with two semi-circular recesses, the inner side of three flat springs (2) is provided with six semi-circular recesses, in each semi-circular recesses, install sectional wheel (3) connecting shaft.
3. elastomeric brakes according to claim 1, is characterized in that: the quantity of described brake block (4) is set to three, and brake block (4) is steel brake block.
4. elastomeric brakes according to claim 1, is characterized in that: it also comprises block (5); Described block (5) is arranged on the side of brake block (4), makes circumferential movement to stop brake block (4).
5. elastomeric brakes according to claim 4, is characterized in that: the quantity of described block (5) is set to three.
6. elastomeric brakes according to claim 1, is characterized in that: it also comprises recovers spring (6); Described recovery spring (6) is the thin plate spring, and the midpoint of this thin plate spring contacts with block (5), and the two ends of the thin plate spring contact with brake block (4).
7. elastomeric brakes according to claim 1, is characterized in that: the radius of curvature of the outer surface curve of described flat spring (2) is less than the radius of curvature of brake block (4) inner surface curve, in order to improve the performance of brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768903.XU CN204300193U (en) | 2014-12-09 | 2014-12-09 | Elastomeric brakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768903.XU CN204300193U (en) | 2014-12-09 | 2014-12-09 | Elastomeric brakes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300193U true CN204300193U (en) | 2015-04-29 |
Family
ID=53105734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420768903.XU Withdrawn - After Issue CN204300193U (en) | 2014-12-09 | 2014-12-09 | Elastomeric brakes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300193U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373488A (en) * | 2014-12-09 | 2015-02-25 | 叶雪峰 | Elastic brake |
-
2014
- 2014-12-09 CN CN201420768903.XU patent/CN204300193U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373488A (en) * | 2014-12-09 | 2015-02-25 | 叶雪峰 | Elastic brake |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2012019585A3 (en) | Friction clutch | |
| CN202371051U (en) | Ball rigid clutch | |
| CN204300193U (en) | Elastomeric brakes | |
| US20190162287A1 (en) | Rotation transmission mechanism, bicycle provided with rotation transmission mechanism, and elastically-deformable body used in rotation transmission mechanism | |
| CN103925308A (en) | Non-friction clutch | |
| WO2015051588A1 (en) | Biaxial rotor apparatus for mechanical disc brake | |
| CN104373488B (en) | Elastomeric brakes | |
| CN101852258A (en) | Roller-type brake | |
| CN202707859U (en) | Unidirectional self-power-increasing centrifugal clutch | |
| CN203892408U (en) | Rear brake structure | |
| CN101850733A (en) | One-way operator for lifting automobile seat | |
| CN203847627U (en) | High-performance shock absorption flywheel | |
| JP2016109299A (en) | Torque transmission device for motor vehicle | |
| CN202414079U (en) | Magnetic-control type moment induction drive system | |
| CN205841617U (en) | A kind of mechanical type one-way damper | |
| CN204253674U (en) | Non-friction type break | |
| CN203819444U (en) | Mechanical disc brake double-shaft rotor structure | |
| US20160152326A1 (en) | Method for fixing an actuator for rotatably driving a wheel of an aircraft | |
| CN203198944U (en) | High-performance brake device | |
| CN206419372U (en) | A kind of digger traveling mechanism brake | |
| CN102434577A (en) | Rolling and sliding bearing with outer ring as sleeve | |
| CN110388391A (en) | Roller-type overrunning clutch | |
| CN103939524B (en) | High-performance vibration damper flywheel | |
| CN102923242A (en) | Friction wheel for friction wheel generating device | |
| CN204284233U (en) | Crankshaft vibration damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150429 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |