CN221120726U - Linkage mechanism of double-caliper brake - Google Patents
Linkage mechanism of double-caliper brake Download PDFInfo
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- CN221120726U CN221120726U CN202323011674.5U CN202323011674U CN221120726U CN 221120726 U CN221120726 U CN 221120726U CN 202323011674 U CN202323011674 U CN 202323011674U CN 221120726 U CN221120726 U CN 221120726U
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- brake
- rotating arm
- eccentric rotating
- calipers
- air chamber
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- 230000007246 mechanism Effects 0.000 title abstract description 8
- 230000009977 dual effect Effects 0.000 claims 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a linkage mechanism of a double-clamp brake, which comprises a brake disc, two brake calipers, an air chamber, an eccentric rotating arm mounting seat and a fixing plate, wherein the two brake calipers are arranged on the side surface of the brake disc, the fixing plate is fixedly arranged on an axle housing, brackets of the two brake calipers are respectively arranged on the fixing plate, movable calipers of the two brake calipers are respectively arranged on the brackets of the two brake calipers in a sliding manner through guide shafts, the eccentric rotating arm mounting seat is fixed on the outer end surface of the movable calipers, the eccentric rotating arm is Y-shaped, the air chamber is connected with the main end of the eccentric rotating arm, and two branch ends of the eccentric rotating arm are respectively hinged on the eccentric rotating arm mounting seat through rotary pins. The utility model has simple structure, improves the braking effect and reduces the weight.
Description
Technical Field
The utility model relates to the field of pneumatic disc brakes, in particular to a linkage mechanism of a double-clamp brake.
Background
A brake is a mechanical part that stops or decelerates a moving part in a machine. The automobile brake is a brake device of an automobile, and brakes used for the automobile are almost all friction type and can be divided into two main types, namely drum type and disc type.
The disc brake is also called a disc brake and mainly comprises a brake disc, a brake caliper, a friction plate, a wheel cylinder and the like, and the brake friction plate and the brake disc rotating along with wheels are rubbed by applying pressure to the brake caliper, so that the purpose of braking is achieved.
At present, the hydraulic disc brake and the pneumatic disc brake are divided according to different power sources provided by the brake, and the pneumatic disc brake is widely applied to front wheel braking of a load truck and a large bus. The working principle is that the air chamber on the brake caliper is inflated, the film piston of the air chamber pushes the push rod to extend, and the push rod pushes the mechanism in the brake caliper to enable the two pistons on the brake caliper body to move outwards, so that the friction plate clamps the brake disc to generate friction force, and vehicle braking is realized. However, the linkage mechanism of the existing dual-caliper brake adopts two air chambers to respectively drive friction plates on a brake caliper to clamp a brake disc, and the dual-caliper brake cannot act simultaneously due to reaction time difference when different air chambers brake, so that the braking effect is affected poorly, the steering of a vehicle is inflexible, and the improvement installation space and weight of a chassis brake are increased.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art, and provides a linkage mechanism of a double-clamp brake, which ensures that the brake brakes simultaneously, reduces the arrangement and weight of an air chamber and reduces the change of the installation space of a chassis.
The technical scheme adopted by the utility model is as follows:
The utility model provides a link gear of double-clamp brake, includes brake disc and brake caliper, is equipped with first friction disc and second friction disc in the brake caliper, still includes an air chamber, an eccentric rocking arm, two eccentric rocking arm mount pad and fixed plate, the side of brake disc is equipped with two brake calipers, the fixed plate is used for fixed mounting on the axle housing, and the support of two brake calipers is installed through the bolt respectively on the fixed plate, and the removal pincers of two brake calipers are in through guiding axle slidable mounting respectively on the support, the eccentric rocking arm mount pad is fixed the outer terminal surface of removal pincers, the eccentric rocking arm is Y style of calligraphy, the air chamber with the trunk end of eccentric rocking arm links to each other, two branch ends of eccentric rocking arm are in through the pivot pin hinge respectively on the eccentric rocking arm mount pad.
Further, two branch ends of the eccentric rotating arm are respectively provided with a roller which is movably provided with a protrusion, and the eccentric rotating arm is respectively in movable contact with the piston body components of the two brake calipers through the rollers.
Further, the air chamber is installed on the moving clamp through an air chamber installation seat, and the air chamber installation seat is of a U-shaped structure.
Further, the eccentric rotating arm is lengthened.
Further, the two branch ends of the eccentric rotating arm are respectively provided with a major arc groove, and the roller is arranged in the major arc groove.
Further, the major arc groove is eccentrically arranged on the eccentric rotating arm.
The technical scheme has the following beneficial effects:
The utility model has simple structure, drives one eccentric rotating arm to rotate through one air chamber, and utilizes the two branch ends of the eccentric rotating arm to respectively drive two brake calipers which are symmetrical up and down to act, thereby ensuring that the friction plates and the brake discs of the two brake calipers are braked and stressed simultaneously, ensuring that the automobile brakes more stably, improving the braking effect, enabling the braking distance of the brake to be shorter and being shortened by about 30 percent compared with the traditional braking distance. Meanwhile, the problem of steering failure of the vehicle in the steering process is avoided, the transformation of the chassis space is reduced, the weight is lightened, and the cost is reduced.
Further description is provided below with reference to the drawings and detailed description.
Drawings
FIG. 1 is a schematic structural view of embodiment 1;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a top view of FIG. 2 with one brake disc removed;
FIG. 4 is a left side view of FIG. 3;
Fig. 5 is a schematic view of the piston body assembly of embodiment 1.
In the attached drawings, 1 is a brake disc, 2 is a brake caliper, 2-1 is a bracket, 2-2 is a moving clamp, 2-3 is a pressing plate, 3 is a first friction plate, 4 is an air chamber, 5 is an eccentric rotating arm, 5-1 is a roller, 5-2 is a rotating pin, 6 is an eccentric rotating arm mounting seat, 7 is a fixed plate, 8 is a piston body, 8-1 is a screw rod, 8-2 is a spiral rotating sleeve, 8-3 is a flat end cover, 8-4 is an anti-rotating key, 8-5 is a clamping ring, 8-6 is a torsion spring, 8-7 is a spiral rotating ring, 8-8 is a spring, 8-9 is an anti-rotating clamp, 8-10 is a spring limiting seat, 8-11 is a dust cover, 9 is a piston body mounting seat, 12 is a return spring, 13 is an air chamber mounting seat, and 14 is a second friction plate.
Detailed Description
Specific example 1:
Referring to fig. 1 to 5, a linkage mechanism of a dual-clamp brake comprises a brake disc 1, two brake calipers 2 arranged on the side of the brake disc 1, a first friction plate 3 and a second friction plate are arranged in the two brake calipers 2, an air chamber 4, an eccentric rotating arm 5, two eccentric rotating arm mounting seats 6 and a fixing plate 7, wherein the brake disc 1 is arranged on an axle housing, the fixing plate 7 is an integrally formed rectangular plate, the center of the rectangular plate is provided with a mounting hole for being mounted on the axle housing, the rectangular plate is provided with an upper bracket mounting hole and a lower bracket mounting hole which are symmetrically arranged, each bracket mounting hole comprises three bracket mounting holes which are arranged left and right and are distributed in a triangle shape, the fixing plate 7 is sleeved on the axle housing through the mounting holes, and is fixedly mounted on the axle housing 11 in a welding manner and is positioned beside the brake disc 1. The brackets 2-1 of the two brake calipers 2 are respectively matched with the bracket mounting holes 7-2 through three bolts and are arranged on the fixed plate 7 and respectively positioned on the upper side and the lower side of the brake disc 1. The movable clamp 2-2 of the two brake clamps 2 are respectively and slidably arranged on the bracket 2-1 of the brake clamp 2 through a guide shaft, the movable clamp 2-2 is in front-back axial sliding fit along the guide shaft, the movable clamp 2-2 of the two brake clamps 2 are respectively provided with a pressing plate 2-3, a first friction plate 3 and a second friction plate are assembled and arranged on the bracket 2-1 and are pressed by the pressing plates 2-3 arranged on the movable clamp to prevent falling, the two brake calipers 2 are respectively sleeved on the upper side and the lower side of the brake disc 1, so that the friction area of the brake calipers and the brake disc 1 is increased, the friction coefficient of a friction plate is effectively prevented from being reduced, the braking moment is improved, and meanwhile, the traditional disc type brake calipers are divided into single-side stress and double-side stress by disc symmetry, and the stress is larger, more uniform and more stable.
The two eccentric rotating arm mounting seats 6 are respectively fixed on the outer side end surfaces of the upper moving clamp 2-2 and the lower moving clamp 2-2 through bolts, the air chamber 4 is provided with an air chamber mounting seat, the air chamber mounting seat is of a U-shaped structure, two sides of the air chamber mounting seat are respectively mounted on the two moving clamps through bolts, the air chamber 4 is mounted on the two moving clamps 2-2 through the air chamber mounting seat 13, the occupied space of the air chamber 4 on a chassis is reduced, and the uniformity of stress of the two moving clamps 2-2 is ensured. The eccentric rotary arm 5 is lengthened, so that the eccentric rotary arm is more labor-saving after being lengthened, and a larger braking moment can be obtained under the condition that the same force is input. The eccentric rotating arm 5 is Y-shaped, the eccentric rotating arm 5 comprises a main part and two branch parts, and the width of the main part is wider than that of the branch parts, so that the strength of the eccentric rotating arm 5 is ensured. The push rod of the air chamber 4 is connected with the trunk end of the eccentric rotary arm 5, two branch ends of the eccentric rotary arm 5 are hinged to the eccentric rotary arm mounting seat 6 through rotary pins 5-2 respectively, the two branch ends of the eccentric rotary arm are provided with major arc grooves respectively, the major arc grooves are eccentrically arranged on the eccentric rotary arm, the two branch ends of the eccentric rotary arm 5 are provided with rollers 5-1 which are movably arranged to protrude respectively, the rollers 5-1 are arranged in the major arc grooves, the eccentric rotary arm 5 rotates to drive the rollers 5-1 to move, and the eccentric arrangement increases the pressure of the rollers 5-1. The eccentric rotating arms are respectively in movable contact with the piston body component of the brake caliper 2 through rollers 5-1, return springs 12 are arranged between the first friction plates 3 of the two brake calipers 2 and the movable calipers 2-2, and the return springs 12 are utilized to drive the first friction plates 3 to return and separate from the brake disc 1. In this embodiment: the first friction plate 3 of each brake caliper 2 is provided with two return springs 12, one side of each return spring 12 is hung on the back surface of the first friction plate 3, the front surface of the first friction surface is in contact with the brake disc 1 for friction braking, and the other end of each return spring 12 is hung on the movable caliper 2-2.
The piston body assembly of the brake caliper 2 comprises a piston body 8 and a piston body mounting seat 9, the piston body is in sliding fit with the piston body mounting seat 9, the piston body 8 comprises a screw rod 8-1, a spiral rotating sleeve 8-2, a flat end cover 8-3, an anti-rotating key 8-4, a clamping ring 8-5, a torsion spring 8-6, a spiral rotating ring 8-7, a spring 8-8, an anti-rotating clamp 8-9 and a spring limiting seat 8-10, the spiral rotating sleeve 8-2 is in sliding fit with the piston body mounting seat 9, one side of the spiral rotating sleeve 8-2 is provided with a stepped inner hole matched with the flat end cover 8-3, a clamping ring groove and a torsion spring mounting groove are formed in the stepped inner hole, and the other side of the spiral rotating sleeve 8-7 is provided with a meshing tooth meshed with the spiral rotating ring 8-7. The side face of the flat end cover 8-3 is provided with a key slot, and the inner side of the flat end cover 8-3 is provided with a torsion spring mounting groove and a clamping ring groove. The spiral rotating ring 8-7 is provided with meshing teeth.
One end of the spiral rotating sleeve 8-2 is arranged in a collar groove through a collar 8-5 and is connected with the flat end cover 8-3, the flat end cover 8-3 is in contact with the roller 5-1 of the eccentric rotating arm, the torsion spring 8-6 is arranged in a torsion spring mounting groove between the spiral rotating sleeve 8-2 and the flat end cover 8-3, an anti-rotating key 8-4 is arranged on the flat end cover 8-3, the anti-rotating key 8-4 is arranged in the key groove, the anti-rotating key 8-4 is fixedly arranged on the piston body mounting seat 9, and the torsion spring 8-6 enables the spiral rotating sleeve 8-2 to rotate unidirectionally. The other end of the spiral rotating sleeve 8-2 is sleeved with the spiral rotating ring 8-7 and the spring 8-8, the spring 8-8 and the spiral rotating ring 8-7 are installed on the piston body installation seat 9 through the spring limiting seat 8-10, one end of the spring 8-8 abuts against the spring limiting seat 8-10, the other end of the spring abuts against the spiral rotating ring 8-7, the spiral rotating ring 8-7 is meshed with the spiral rotating sleeve 8-2 intermittently, and after the spiral rotating sleeve 8-2 moves axially to be contacted with the spiral rotating ring 8-7, the spiral rotating sleeve 8-2 is meshed with the spiral rotating ring 8-7 to drive the spiral rotating ring 8-7 to rotate, so that the spiral rotating sleeve 8-2 rotates unidirectionally to enable the screw to extend to compensate abrasion gaps of friction plates. The screw rod 8-1 is in threaded fit in the spiral rotating sleeve 8-2, one end of the screw rod 8-1 is inserted into the torsion spring 8-6, the other end of the screw rod extends out of the spiral rotating sleeve 8-2 and is in contact with the first friction plate 3 of the brake caliper 2, an anti-rotating clamp 8-9 is arranged at the extending end of the screw rod 8-1, and the screw rod 8-1 is utilized to axially move to drive the first friction plate 3 to move towards the brake disc 1. When the piston body adopts the flat end cover and the eccentric rotating arm drives the roller to push the flat end cover, the flat end cover has no component force, the braking force of the air chamber is reduced, and the radial stress ensures that the piston body component operates more stably.
The piston body mounting seat 9 is fixed on the movable clamp 2-2 of the brake clamp 2, and is corresponding to the eccentric rotating arm mounting seat 6, and the piston body mounting seat 9 and the eccentric rotating arm mounting seat 6 are fixedly connected to form a closed body. One end of the piston body is contacted with the roller 5-1 of the eccentric rotating arm, the other end of the piston body is propped against the first friction plate 3 of the brake caliper 2, and the piston body assembly can automatically adjust the gap between the brake disc 1 and the friction plate.
Possibly, a dust cover 8-11 is further arranged, the dust cover is arranged outside the spring limiting seat, and the dust cover and the spring limiting seat are fixedly arranged on the piston body mounting seat 9.
The working principle of the utility model is as follows:
An air chamber 4 drives an eccentric rotating arm with a Y-shaped structure to move, the eccentric rotating arm is utilized to simultaneously drive piston bodies of double brake calipers 2 to move, the piston body of each brake caliper 2 simultaneously pushes a first friction plate 3 to press a brake disc 1, and simultaneously, the generated reaction force drives a movable caliper 2-2 to move so as to push a second friction plate 14 to press the brake disc 1, and the automobile is braked by friction force. When the air chamber 4 is depressurized, the first friction plate 3 releases the brake under the action of the return spring 12, the structure ensures that the double-brake caliper 2 brakes simultaneously, improves the braking effect, shortens the braking distance by about 30 percent compared with the traditional braking distance, and effectively avoids the problem of steering failure.
The piston body assembly adopts the eccentric rotating arm to rotate to drive the roller 5-1 to extrude the flat head end cover 8-3, the flat head end cover 8-3 moves to drive the spiral rotating sleeve 8-2 to rotate unidirectionally, the spiral rotating sleeve 8-2 rotates to drive the screw rod to axially move, the flat head end cover 8-3 is provided with the key groove to be installed with the anti-rotating key 8-4, the flat head end cover 8-3 can be prevented from rotating, the spiral rotating sleeve 8-2 is ensured to rotate unidirectionally by utilizing the spiral rotating ring 8-7, the screw rod is prevented from rotating by the anti-rotating clamp 8-9, and the first friction plate 3 is pushed by the screw rod 8-1 to contact and brake with the brake disc 1. When stopping the braking, the air chamber is decompressed, and the piston body returns under the action of the spring external force after the eccentric rotating arm returns. The piston body has the function of automatically adjusting the gap between the brake disc 1 and the friction plate, the flat end cover is a plane, no lateral stress exists during movement, the movement is flexible, the response time is quick, and the braking process is safe and reliable. The two brake calipers 2 symmetrically apply friction braking force to the brake disc 1 at the same time, so that the automobile brakes more stably.
Claims (6)
1. The utility model provides a link gear of double-clamp brake, includes brake disc and brake caliper, is equipped with first friction disc and second friction disc in the brake caliper, its characterized in that: the brake disc is characterized by further comprising an air chamber, an eccentric rotating arm, two eccentric rotating arm mounting seats and a fixing plate, wherein two brake calipers are arranged on the side face of the brake disc, the fixing plate is fixedly arranged on the axle housing, supports of the two brake calipers are respectively arranged on the fixing plate through bolts, movable calipers of the two brake calipers are respectively and slidably arranged on the supports through guide shafts, the eccentric rotating arm mounting seats are fixed on the outer side end faces of the movable calipers, the eccentric rotating arm is Y-shaped, the air chamber is connected with the trunk end of the eccentric rotating arm, and two branch ends of the eccentric rotating arm are respectively hinged to the eccentric rotating arm mounting seats through rotary pins.
2. The linkage of a dual clamp brake of claim 1 wherein: the two branch ends of the eccentric rotating arm are respectively provided with a roller which is movably arranged to protrude, and the eccentric rotating arm is respectively in movable contact with the piston body components of the two brake calipers through the rollers.
3. The linkage of a dual clamp brake of claim 1 wherein: the air chamber is arranged on the moving clamp through an air chamber mounting seat, and the air chamber mounting seat is of a U-shaped structure.
4. A dual clamp actuator linkage as claimed in claim 1 or claim 2, wherein: the eccentric rotating arm is lengthened.
5. A dual clamp actuator linkage as claimed in claim 1 or claim 2, wherein: and the two branch ends of the eccentric rotating arm are respectively provided with a major arc groove, and the roller is arranged in the major arc groove.
6. The linkage of a dual clamp brake of claim 5 wherein: the major arc groove is eccentrically arranged on the eccentric rotating arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323011674.5U CN221120726U (en) | 2023-11-08 | 2023-11-08 | Linkage mechanism of double-caliper brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323011674.5U CN221120726U (en) | 2023-11-08 | 2023-11-08 | Linkage mechanism of double-caliper brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221120726U true CN221120726U (en) | 2024-06-11 |
Family
ID=91343503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323011674.5U Active CN221120726U (en) | 2023-11-08 | 2023-11-08 | Linkage mechanism of double-caliper brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221120726U (en) |
-
2023
- 2023-11-08 CN CN202323011674.5U patent/CN221120726U/en active Active
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| GR01 | Patent grant |