CN205350138U - Can compensate drum brake dish assembly of brake hoof end wear volume - Google Patents
Can compensate drum brake dish assembly of brake hoof end wear volume Download PDFInfo
- Publication number
- CN205350138U CN205350138U CN201620093495.1U CN201620093495U CN205350138U CN 205350138 U CN205350138 U CN 205350138U CN 201620093495 U CN201620093495 U CN 201620093495U CN 205350138 U CN205350138 U CN 205350138U
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- China
- Prior art keywords
- brake
- disc cam
- hoof
- brake shoe
- drum
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Abstract
The utility model discloses a can compensate drum brake dish assembly of brake hoof end wear volume, including locating the internal circular arc block type of the drum friction disc of hoof with the hoof that brakes down, on locating brake hoof extrados that brake on, two brake hoof corresponding to brake in the when action brake control hoof with brake down that corresponding of degree of opening and shutting is equipped with first of the ten heavenly stems disc cam between the hoof between the end, draw even through the extension spring that resets between the hoof body of two brake hoof, press from both sides the second of the ten heavenly stems disc cam that is equipped with long square block body shape between another corresponding end of two brake hoof, the middle part of the side of second disc cam is equipped with adjustable locking axle, second disc cam sets up on the drum body through the fastening of adjustable locking axle. The structure is more reasonable, braking efficiency is higher, reliability and safety is higher, life is longer, the installation maintenance is more convenient, use cost is lower, and the result of use is more ideal.
Description
Technical field
This utility model relates to brake unit technical field, particularly a kind of drum brakes disc assembly that can compensate for brake shoe end wear amount.
Background technology
Drum brakes disc assembly is the core members of the brake component adopting the motorcycle of drum brake system or electromobile or automobile, and its performance is most important to safe driving.
The drum brakes disc assembly of prior art, its usual structure such as Fig. 1 with reference to shown in Fig. 2, including the upper brake shoe 1 of the circular arc block shape being located in bulging body 9 and lower brake shoe 4, the friction plate 3 be located on brake shoe extrados；The upper first disc cam 6 being provided with the pane bodily form between brake shoe 1 and lower brake shoe 4 between the corresponding end of opening degree of control when corresponding to brake of two brake shoes；By reset tension spring 5 company of drawing between the hoof body of two brake shoes；Connected by hinge 2 between another corresponding end of two brake shoes；The gyroaxis of first disc cam 6 is located at the middle part of first disc cam 6 side.
Adopt the drum brakes disc assembly of such technology it is of course possible to use, but actuating device frequently drives the gyroaxis of first disc cam 6 to rotate during brake, upper brake shoe 1 and lower brake shoe 4 are backed down when making bulging body 9 inner headed face that friction plate 3 compresses brake drum, after using a period of time, first disc cam 6 and upper brake shoe 1 and lower brake shoe 4 mutually push up pressure wear extent and are gradually increased；When brake lever reoperates, the deflection angle stroke of first disc cam 6 just needs to strengthen, when braking completely, the length of first disc cam 6 can become big to the angle value of angle between the transverse plane of centrage and upper brake shoe 1, after using one period, the transverse plane of upper brake shoe 1 is easily ground groove by the crimping end face of first disc cam 6, the length of first disc cam 6 can strengthen convergence right angle further to the angle value of angle between the transverse plane of centrage and upper brake shoe 1, when decontroling brake lever, the extension spring 5 that is not easily reset of two brake shoes retracts reset, easily it is stuck, service life is relatively short, cause the potential safety hazard of brake unit, brake system brakes efficiency can reduce, it is also convenient not to safeguard, result of use is desirable not enough.
Utility model content
For overcoming the deficiencies in the prior art, this utility model provides a kind of more reasonable structure, is not easily stuck, reliance security is higher, longer service life, easy to maintenance, use cost is lower, brake system brakes is in hgher efficiency, and result of use more preferably can compensate for the drum brakes disc assembly of brake shoe end wear amount.
This utility model is reach above-mentioned technical purpose to be the technical scheme is that a kind of drum brakes disc assembly that can compensate for brake shoe end wear amount, including the friction plate being located at the upper brake shoe of the internal circular arc block shape of drum and lower brake shoe, be located on brake shoe extrados；Control when corresponding to brake of two brake shoes is upper is provided with first disc cam between the corresponding end of opening degree between brake shoe and lower brake shoe；Drawn even by reset tension spring between the hoof body of two brake shoes；Being folded with the second disc cam of the pane bodily form between another corresponding end of two brake shoes, the middle part of the side of second disc cam is provided with adjustable lock shaft；Second disc cam is arranged on bulging body by the fastening of adjustable lock shaft.
Angle line between the outer face of the second disc cam of the described pane bodily form and end face is provided with arc-shaped transition；Angle line between the inner face of the second disc cam of the described pane bodily form and bottom surface is provided with arc-shaped transition；When being arranged on bulging body by the fastening of adjustable lock shaft after the deflection of second disc cam, the end face of corresponding end two brake shoe is pressed on the arc transiting surface of correspondence respectively.
The beneficial effects of the utility model are: owing to being folded with the second disc cam of the pane bodily form between another corresponding end of two brake shoes, the middle part of the side of second disc cam is provided with adjustable lock shaft；Second disc cam is arranged on bulging body by the fastening of adjustable lock shaft.
Therefore, after using a period of time, when producing abrasion when between the corresponding hoof end face controlling upper opening degree between brake shoe and lower brake shoe and first disc cam；As long as unclamping adjustable lock shaft with instrument and making second disc cam again fasten with instrument again after deflecting suitable angle, by between the upper brake shoe 1 of second disc cam corresponding end and lower brake shoe gap strengthen, namely increase brake lever not operating time two brake shoes outside predilation degree；The angle stroke of so less first disc cam just can produce the expansion ratio that the end face between bigger and first disc cam corresponding end two brake shoe opens mutually, this improves the abrasion that compensate between first disc cam with corresponding brake shoe contact surface, the machine driving of brake system is highly efficient, when can make brake, brake shoes splaying effect can be adjusted to optimized state at any time, brake sensitiveer reliably, improve the service life of retardation efficiency and brake gear, use cost is lower, be not easy to be stuck when decontroling brake lever, reliability and safety higher, result of use is better.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.Wherein:
Fig. 1 is the schematic diagram of the drum brakes disc assembly of prior art；
Fig. 2 is schematic diagram of the present utility model；
Fig. 3 is the scheme of installation of second disc cam in this utility model；
Fig. 4 is the scheme of installation of the second disc cam of another line of vision in this utility model.
Marker number in accompanying drawing illustrates as follows: upper brake shoe 1, hinge 2, friction plate 3, lower brake shoe 4, reset tension spring 5, first disc cam 6, second disc cam 7, adjustable lock shaft 8, drum body 9, outer-hexagonal nut 10, interior hexagonal counterbore 11, inner hexagon spanner 12, outer hexagonal spanner 13, braking turning handle 14
Detailed description of the invention
Embodiment of the present utility model, as shown in Figures 2 to 4, a kind of drum brakes disc assembly that can compensate for brake shoe end wear amount, including the upper brake shoe 1 of the circular arc block shape being located in bulging body 9 and lower brake shoe 4, the friction plate 3 be located on brake shoe extrados；Control when corresponding to brake of two brake shoes is upper is provided with first disc cam 6 between the corresponding end of opening degree between brake shoe 1 and lower brake shoe 4；By reset tension spring 5 company of drawing between the hoof body of two brake shoes；Being folded with the second disc cam 7 of the pane bodily form between another corresponding end of two brake shoes, the middle part of the side of second disc cam 7 is provided with adjustable lock shaft 8；Second disc cam 7 is arranged on bulging body 9 by adjustable lock shaft 8 fastening.
Angle line between the outer face of the second disc cam 7 of the described pane bodily form and end face is provided with arc-shaped transition；Angle line between the inner face of the second disc cam 7 of the described pane bodily form and bottom surface is provided with arc-shaped transition；When being arranged on bulging body 9 by adjustable lock shaft 8 fastening after second disc cam 7 deflection, the end face of corresponding end two brake shoe is pressed on the arc transiting surface of correspondence respectively.
So, after using a period of time, owing to controlling to produce between the corresponding end of opening degree between upper brake shoe 1 and lower brake shoe 4 and first disc cam 6 abrasion；As long as unclamping adjustable lock shaft 8 with instrument and making second disc cam 7 again fasten with instrument again after deflecting suitable angle, thus by between the upper brake shoe 1 of second disc cam 7 corresponding end and lower brake shoe 4 gap strengthen, namely increase brake lever not operating time two brake shoes outside expansion ratio；6 jiaos of strokes of so less first disc cam just can produce the displacement degree that the end face between bigger and first disc cam 6 corresponding end two brake shoe opens mutually, this improves the abrasion that compensate between first disc cam 6 and brake shoe contact surface, the machine driving of brake system is highly efficient, the shoe plate splaying effect that can make brake shoe is better, brake sensitiveer reliably, improve the service life of retardation efficiency and brake gear, be not easy to when decontroling brake lever to be stuck, reliability and safety higher.
Of the present utility model adjustment is installed: adjustable lock shaft 8 one end is fixing with first disc cam 6 to be connected, adjustable lock shaft 8 axle portion set is inserted on the corresponding hole offered on bulging body 9, the outer peripheral face of the other end that adjustable lock shaft 8 stretches out is provided with external screw thread, external screw thread is connected with outer-hexagonal nut 10, this axial end offers interior hexagonal counterbore 11, when adjusting, as long as first first unclamping outer-hexagonal nut 10 with inner hexagon spanner 12 or common adjustable wrench, insert with inner hexagon spanner 12 locks just passable with inner hexagon spanner 12 or common adjustable wrench after adjustable lock shaft 8 is rotated to suitable angle by interior hexagonal counterbore 11 again by outer-hexagonal nut 10 again.First disc cam 6 is then by braking turning handle 14 grade with brake being connected.Each end face of upper brake shoe 1 and lower brake shoe 4 all should be arranged in level assembling.When brake shoes starts part abrasion, gap (referring to when not applying reset tension spring 5) between two brake shoes is greater than original normal clearance, when after two brake shoes are rotated by first disc cam 6, top is opened, reach normal normal danger, first disc cam 6 deflection angle just must be made to strengthen, and after the increasing of first disc cam 6 deflection angle, deflection torque will diminish, the retardation efficiency of brake system will reduce, first disc cam 6 is in the process frequently turned to, the point abrasion that crimps with brake shoes can be made to form groove, thus the reset difficulty of brake shoes can be made, cause brake shoes locking phenomenon, nowadays add adjusting apparatus at the brake shoes other end just to overcome and solve drawbacks described above, the gap between brake shoes and drum body 9 can be adjusted at any time, braking system effectiveness is allowed to be in optimum state, also extend service life simultaneously.After adjusting, brake system can obtain the braking effect of the best, it is ensured that the safety traffic of vehicle.
Technology of the present utility model can be used for adopting all kinds of motorcycles of drum type braking device, electromobile, automobile.
Claims (2)
1. can compensate for a drum brakes disc assembly for brake shoe end wear amount, including the friction plate being located at the upper brake shoe of the internal circular arc block shape of drum and lower brake shoe, be located on brake shoe extrados；Control when corresponding to brake of two brake shoes is upper is provided with first disc cam between the corresponding end of opening degree between brake shoe and lower brake shoe；Drawn even by reset tension spring between the hoof body of two brake shoes；It is characterized in that: being folded with the second disc cam of the pane bodily form between another corresponding end of two brake shoes, the middle part of the side of second disc cam is provided with adjustable lock shaft；Second disc cam is arranged on bulging body by the fastening of adjustable lock shaft.
2. a kind of drum brakes disc assembly that can compensate for brake shoe end wear amount according to claim 1, it is characterised in that: the angle line between the outer face of the second disc cam of the described pane bodily form and end face is provided with arc-shaped transition；Angle line between the inner face of the second disc cam of the described pane bodily form and bottom surface is provided with arc-shaped transition；When being arranged on bulging body by the fastening of adjustable lock shaft after the deflection of second disc cam, the end face of corresponding end two brake shoe is pressed on the arc transiting surface of correspondence respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620093495.1U CN205350138U (en) | 2016-01-29 | 2016-01-29 | Can compensate drum brake dish assembly of brake hoof end wear volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620093495.1U CN205350138U (en) | 2016-01-29 | 2016-01-29 | Can compensate drum brake dish assembly of brake hoof end wear volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350138U true CN205350138U (en) | 2016-06-29 |
Family
ID=56182172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620093495.1U Expired - Fee Related CN205350138U (en) | 2016-01-29 | 2016-01-29 | Can compensate drum brake dish assembly of brake hoof end wear volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205350138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838070A (en) * | 2017-03-10 | 2017-06-13 | 泰州市天宇交通器材有限公司 | A kind of hub is stopped shoe plate device of wear compensation |
-
2016
- 2016-01-29 CN CN201620093495.1U patent/CN205350138U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838070A (en) * | 2017-03-10 | 2017-06-13 | 泰州市天宇交通器材有限公司 | A kind of hub is stopped shoe plate device of wear compensation |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20190129 |