CN218625153U - Wedge brake for light automobile - Google Patents
Wedge brake for light automobile Download PDFInfo
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- CN218625153U CN218625153U CN202223332031.6U CN202223332031U CN218625153U CN 218625153 U CN218625153 U CN 218625153U CN 202223332031 U CN202223332031 U CN 202223332031U CN 218625153 U CN218625153 U CN 218625153U
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- brake
- wedge
- cylinder assembly
- wheel cylinder
- bottom plate
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Abstract
The utility model relates to the technical field of auto-parts, specifically be a wedge brake for light automobile, including two brake shoe subassemblies, brake bottom plate and dust-retaining plate, the both sides at brake bottom plate are installed respectively to two brake shoe subassemblies, brake shoe subassembly includes brake shoe and friction disc, the fixed wheel cylinder assembly that is provided with in upper end of brake bottom plate, the fixed brake chamber that is provided with on the wheel cylinder assembly, brake chamber's input and outside air supply fixed connection, brake chamber's output and the input fixed connection of wheel cylinder assembly, the lower extreme of two brake shoes is all rotated through the downside of round pin axle with brake bottom plate and is connected, the fixed return mechanism that plays the return effect that is equipped with between two brake shoes. The utility model discloses alleviate stopper weight, reduced product manufacturing cost, shortened wheel cylinder assembly's maintenance cycle, improved the problem of the easy off tracking of whole car braking of light automobile.
Description
Technical Field
The utility model relates to the technical field of auto-parts, specifically be a wedge brake for light automobile.
Background
Automotive brakes are one of the most important components in vehicle braking. At present, most of domestic common trucks and medium-sized trucks use traditional air pressure drum brakes, and the pneumatic drum brakes are characterized by simple structure, low cost compared with a disc type, reliable performance and working principle: the brake chamber provides power, and the power is transmitted to the brake shoe through the adjusting arm and the S-shaped cam shaft, so that the brake shoe assembly with the friction plate is outwards opened and contacts the inner wall of the brake drum, and the vehicle is braked.
The existing light automobile brake is a cam type drum structure or a hydraulic brake, the process assembly is complex, the product weight is large, the maintenance period is short due to the fact that the abrasion of a wheel cylinder assembly is larger, and the problem that the braking deviation is easy to occur after the whole automobile is used for a period of time is solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wedge brake for light-duty car has alleviateed stopper weight, has reduced product manufacturing cost, has shortened the maintenance cycle of wheel cylinder assembly, has improved the problem of the easy off tracking of light-duty car whole car braking in order to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the wedge brake for the light automobile comprises two brake shoe assemblies, a brake bottom plate and a dust blocking disc, wherein the two brake shoe assemblies are respectively installed on two sides of the brake bottom plate and comprise brake shoes and friction plates, a wheel cylinder assembly is fixedly arranged at the upper end of the brake bottom plate, a brake air chamber is fixedly arranged on the wheel cylinder assembly, the input end of the brake air chamber is fixedly connected with an external air source, the output end of the brake air chamber is fixedly connected with the input end of the wheel cylinder assembly, the lower ends of the brake shoes are rotatably connected with the lower side of the brake bottom plate through hinge pins, and a return mechanism with a return function is fixedly arranged between the brake shoes.
Preferably, the return mechanism comprises a return spring and two hanging columns, the two hanging columns are respectively and fixedly arranged at the upper end of the brake shoe, and the two hooks of the return spring are respectively and fixedly connected with the two hanging columns.
Preferably, the wheel cylinder assembly includes casing, two pistons and wedge, two the piston symmetry slides and sets up the inside both sides department at the casing, the wedge sets up between two pistons, brake chamber's output and wedge fixed connection, two the inclined plane with wedge matched with is all seted up to the one end that the piston is relative, the rectangular channel has been seted up at the inclined plane middle part, the fixed slide mechanism that is equipped with in inside of rectangular channel.
Preferably, slide mechanism includes two gyro wheels, two the gyro wheel evenly sets up in the rectangular channel, the gyro wheel passes through the inclined plane rotation connection of the cell wall of holder and rectangular channel and wedge.
Preferably, the dust blocking plate is provided with an observation hole, and a rubber plug is arranged in the observation hole.
Compared with the prior art, the beneficial effects of the utility model are that:
this wedge brake for light automobile, brake chamber and wheel cylinder assembly through being equipped with, brake chamber passes through the effect of atmospheric pressure, promote inside push rod and outwards transmit displacement and effort to wheel cylinder assembly, brake chamber's push rod passes through the wedge and promotes the piston in the wheel cylinder assembly to both sides, through the gyro wheel that is equipped with, the gyro wheel has reduced the frictional force between inclined plane and the wedge by a wide margin, the life of wheel cylinder assembly has been improved, then transmit to the brake shoe subassembly again via the wheel cylinder assembly, outwards open behind the brake shoe subassembly atress and laminate with the brake drum inner wall, realize that the car slows down and parks through frictional action between them. After braking is completed, air pressure in the brake air chamber is cut off, the air chamber push rod returns, the brake shoe component is pulled to the initial position by the return spring and separated from the brake drum, the weight of the brake is reduced, the manufacturing cost of a product is reduced, the maintenance cycle of a wheel cylinder assembly is shortened, and the problem that the whole light automobile is easy to deviate during braking is solved.
Drawings
Fig. 1 is a schematic structural view of a wedge brake for a light vehicle.
Fig. 2 is a side view of a wedge brake for a light vehicle.
Fig. 3 is a back structure view of a wedge brake for a light vehicle.
Fig. 4 is a schematic view of the internal structure of the wheel cylinder assembly of fig. 3.
In the figure: 1. a dust-blocking disc; 2. a wear sensor; 3. a brake chamber; 4. glue and block; 5. a brake shoe assembly; 6. a wheel cylinder assembly; 7. a brake shoe; 8. a friction plate; 9. braking a horseshoe; 10. a pin shaft; 11. hanging a column; 12. a return spring; 13. a piston; 14. a housing; 15. a wedge block; 16. a roller; 17. a cage.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution:
the utility model provides a wedge brake for light automobile, including two brake shoe subassemblies 5, brake bottom plate 7 and fender dirt dish 1, two brake shoe subassemblies 5 are installed respectively in the both sides of brake bottom plate 7, brake shoe subassembly 5 includes brake shoe 9 and friction disc 8, the upper end of brake bottom plate 7 is fixed and is provided with wheel cylinder assembly 6, the last fixed brake chamber 3 that is provided with of wheel cylinder assembly 6, the input and the outside air supply fixed connection of brake chamber 3, the output of brake chamber 3 and the input fixed connection of wheel cylinder assembly 6, the lower extreme of two brake shoes 9 all rotates with the downside of brake bottom plate 7 through round pin axle 10 and is connected, the observation hole has been seted up on the fender dirt dish 1, the observation hole corresponds with a plurality of friction disc 8 positions, can set up a plurality ofly, the observation hole is convenient for observe the wearing and tearing condition of friction disc 8, convenient timely change, be provided with in the observation hole and glue stifled 4, glue stifled 4 can be convenient for will observe the hole and close when using at ordinary times.
Fixed return mechanism who plays the return effect that is equipped with between two brake shoes 9, return mechanism include return spring 12 and two string posts 11, and two string posts 11 are fixed the setting respectively in the upper end of brake shoes 9, and two couples of return spring 12 all are provided with stop gear with two string posts 11 fixed connection respectively on two string posts 11, prevent that two couples of return spring 12 from droing from hanging post 11.
Wheel cylinder assembly includes casing 14, two pistons 13 and wedge 15, and two pistons 13 symmetric slip set up in the inside both sides department of casing 14, and wedge 15 sets up between two pistons 13, brake chamber 3's output and wedge 15 fixed connection, and the inclined plane with 15 matched with wedges is all seted up to two relative one ends of piston 13, and the inclined plane can make the both sides of wedge 15 and piston 13's stress surface increase, has improved the reliability of structure.
The wheel cylinder assembly 6 is internally provided with an automatic gap adjusting function, when the gap between the brake shoe component 5 and the brake drum increases along with the increase of service time and the abrasion becomes larger, the internal structure of the wheel cylinder assembly 6 is adjusted to keep the gap between the brake shoe component 5 and the brake drum in a stable range, so that the braking torque of four wheels is stable, and the problem that the whole light automobile is easy to deviate in braking is solved.
The rectangular channel has been seted up at the inclined plane middle part, the fixed slide mechanism that is equipped with in inside of rectangular channel, slide mechanism includes two gyro wheels 16, two gyro wheels 16 evenly set up in the rectangular channel, gyro wheel 16 rotates through the cell wall of holder 17 with the rectangular channel and the inclined plane of wedge and is connected, gyro wheel 16 has reduced the frictional force between inclined plane and the wedge 15 by a wide margin, the life of wheel cylinder assembly 6 has been improved, when the vehicle brakies, wedge 15 promotes two gyro wheels 16 in proper order, can make two gyro wheels 16's atress even, the life of slide mechanism has been improved.
During braking, the brake chamber 3 pushes the inner push rod to transmit displacement and acting force to the wheel cylinder assembly 6 outwards under the action of air pressure, the push rod of the brake chamber 3 pushes the piston in the wheel cylinder assembly 6 towards two sides through the wedge block 15, the roller 16 greatly reduces the friction force between the inclined plane and the wedge block 15, the service life of the wheel cylinder assembly 6 is prolonged, then the piston is transmitted to the brake shoe component 5 through the wheel cylinder assembly 6, the brake shoe component 5 is outwards opened after being stressed to be attached to the inner wall of the brake drum, and the automobile is decelerated and stopped under the friction action of the brake shoe component 5 and the brake drum. After braking is finished, air pressure in the brake air chamber 3 is cut off, the air chamber push rod returns, and the return spring 12 pulls the brake shoe assembly 5 to the initial position to be separated from the brake drum.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a wedge brake for light automobile, includes two brake shoe subassemblies (5), braking bottom plate (7) and keeps off dirt dish (1), two install respectively in the both sides of braking bottom plate (7) brake shoe subassembly (5), brake shoe subassembly (5) are including brake shoe (9) and friction disc (8), its characterized in that: the wheel cylinder assembly (6) is fixedly arranged at the upper end of the brake bottom plate (7), the brake air chamber (3) is fixedly arranged on the wheel cylinder assembly (6), the input end of the brake air chamber (3) is fixedly connected with an external air source, the output end of the brake air chamber (3) is fixedly connected with the input end of the wheel cylinder assembly (6), the lower ends of the brake shoes (9) are rotatably connected with the lower side of the brake bottom plate (7) through pin shafts (10), and a return mechanism which has a return function is fixedly arranged between the brake shoes (9).
2. The wedge brake for light vehicle as claimed in claim 1, wherein: the return mechanism comprises a return spring (12) and two hanging columns (11), the two hanging columns (11) are fixedly arranged at the upper end of the brake shoe (9) respectively, and two hooks of the return spring (12) are fixedly connected with the two hanging columns (11) respectively.
3. A wedge brake for a light vehicle according to claim 1, wherein: wheel cylinder assembly includes casing (14), two pistons (13) and wedge (15), two piston (13) symmetry slip setting is in the inside both sides department of casing (14), wedge (15) set up between two pistons (13), the output and wedge (15) fixed connection of brake chamber (3), two the inclined plane with wedge (15) matched with is all seted up to the one end that piston (13) is relative, the rectangular channel has been seted up at the inclined plane middle part, the fixed slide mechanism that is equipped with in inside of rectangular channel.
4. The wedge brake for light vehicle as claimed in claim 3, wherein: slide mechanism includes two gyro wheels (16), two gyro wheel (16) evenly set up in the rectangular channel, gyro wheel (16) are connected through the inclined plane rotation of the cell wall of holder (17) and rectangular channel and wedge.
5. The wedge brake for light vehicle as claimed in claim 1, wherein: an observation hole is formed in the dust blocking plate (1), and a rubber plug (4) is arranged in the observation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223332031.6U CN218625153U (en) | 2022-12-13 | 2022-12-13 | Wedge brake for light automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223332031.6U CN218625153U (en) | 2022-12-13 | 2022-12-13 | Wedge brake for light automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218625153U true CN218625153U (en) | 2023-03-14 |
Family
ID=85455587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223332031.6U Active CN218625153U (en) | 2022-12-13 | 2022-12-13 | Wedge brake for light automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218625153U (en) |
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2022
- 2022-12-13 CN CN202223332031.6U patent/CN218625153U/en active Active
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