CN216691951U - Low drag brake caliper - Google Patents
Low drag brake caliper Download PDFInfo
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- CN216691951U CN216691951U CN202123058736.9U CN202123058736U CN216691951U CN 216691951 U CN216691951 U CN 216691951U CN 202123058736 U CN202123058736 U CN 202123058736U CN 216691951 U CN216691951 U CN 216691951U
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- friction plate
- brake caliper
- outer friction
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- spring
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- 238000000034 method Methods 0.000 abstract description 7
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model aims to provide a low-drag brake caliper, wherein two sides of an inner friction plate and/or an outer friction plate are respectively provided with a spring leaf, the connection points of the spring leaves and the inner friction plate and/or the outer friction plate are positioned on the central line of the inner friction plate and/or the outer friction plate, and the spring leaves provide elasticity to drive the inner friction plate and/or the outer friction plate to move towards the direction away from the other friction plate. In the scheme, the spring piece arrangement position is emphasized, in order to ensure that the inner friction piece and the outer friction piece can slide back in parallel, the spring pieces of the inner friction piece and the outer friction piece are arranged on the central line positions of the inner friction piece and the outer friction piece, the spring pieces are ensured to elastically deform and return to generate force which can uniformly act on the central line of the friction pieces, the situation that the inclination angle is generated in the process of returning the friction pieces to cause the brake disc and the friction pieces to be in uneven contact is avoided, eccentric wear of the friction pieces is generated, and the service life of the friction pieces is shortened.
Description
Technical Field
The utility model relates to the technical field of automobile braking systems, in particular to a low-drag brake caliper.
Background
The brake caliper is used as a main component of an automobile brake system and one of main safety parts of an automobile, and the magnitude of the brake caliper dragging torque has a direct influence on automobile oil consumption, so that how to reduce the brake caliper dragging torque is a common target in the automobile industry at present. The caliper generally includes a caliper body, an inner friction plate, an outer friction plate, and a brake disc, a hydraulic cylinder is provided in the caliper body, a caliper bracket is fixed to a knuckle by a bolt, the caliper body is connected to a guide pin by a caliper body fastening bolt, and is inserted into a guide hole in the caliper bracket through the guide pin and displaced in the guide hole in the direction of a hole core, and the caliper body and the guide pin slide synchronously. When the automobile brakes, the piston pushes a friction plate on one side to move, when the friction plate contacts a brake disc, the caliper body moves towards the direction far away from the disc surface of the brake disc, and the friction plate on the opposite side of the piston on the caliper body moves towards the side where the disc surface of the brake disc is located until the friction plates on the two sides of the brake disc are pressed against the disc surfaces on the two sides of the brake disc to achieve the purpose of braking; after the braking, the piston return has certain clearance between brake block and the piston, and the friction disc of both sides is thrown away in the vibration that the brake disc rotation produced, but has certain time difference in the middle of this, arrives friction disc and brake disc drag and grind to produce great dragging torque, also can reduce the life of friction disc and brake disc simultaneously.
The drag force of the brake caliper is mainly composed of a piston, a guide pin and a friction plate which are returned to generate sliding resistance, wherein the sliding resistance of the piston and the guide pin is reduced, the method adopted by each factory of the large main engine at present is basically the same, namely two splayed spring active return mechanisms are arranged on an inner friction plate and an outer friction plate, two supporting legs of the splayed spring are respectively connected with the upper parts of the inner friction plate and the outer friction plate, openings of the two splayed springs are arranged oppositely, when the brake is carried out, the two supporting legs of the splayed spring are pressed to store energy along with the approach of the inner friction plate and the outer friction plate, after the brake is finished, the splayed spring releases energy to push the inner friction plate and the outer friction plate to be rapidly separated from a brake disc, and the response is rapid. However, because the two support legs of the splayed spring are connected to the upper parts of the inner and outer friction plates, the upper parts of the inner and outer friction plates are subjected to large elastic force, and the lower parts of the inner and outer friction plates are subjected to small elastic force, namely the friction plates do not return in parallel in the return process, and the friction plates generate an inclined angle in the return process, so that the brake disc and the friction plates are not in uniform contact, the friction plates are eccentric wear, the dragging force of the brake caliper is large, and the oil consumption of a vehicle is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low-drag brake caliper capable of ensuring a friction plate to return in parallel.
In order to achieve the purpose, the utility model adopts the technical scheme that: a low-drag brake caliper comprises a brake caliper body, wherein a lug arranged on the inner side of the brake caliper body is connected with a guide pin through a locking bolt, two inner friction plates and two outer friction plates which are arranged in parallel are arranged in the brake caliper body, the upper parts of the inner friction plates and the outer friction plates are connected through splayed springs, two sides of each inner friction plate and/or each outer friction plate are respectively provided with a spring leaf, the connection points of the spring leaves and the inner friction plates and/or the outer friction plates are located on the central line of the inner friction plates and/or the outer friction plates, and the spring leaves provide elastic force to drive the inner friction plates and/or the outer friction plates to move towards the direction away from the other friction plates.
In the scheme, the spring piece arrangement position is emphasized, in order to ensure that the inner friction piece and the outer friction piece can slide back in parallel, the spring pieces of the inner friction piece and the outer friction piece are arranged on the central line positions of the inner friction piece and the outer friction piece, the spring pieces are ensured to elastically deform and return to generate force which can uniformly act on the central line of the friction pieces, the situation that the inclination angle is generated in the process of returning the friction pieces to cause the brake disc and the friction pieces to be in uneven contact is avoided, eccentric wear of the friction pieces is generated, and the service life of the friction pieces is shortened.
Drawings
FIG. 1 is a schematic view of the overall construction of a brake caliper;
FIG. 2 is a schematic view of the internal structure of the caliper;
fig. 3 is a partially enlarged schematic view of fig. 1.
Detailed Description
Referring to fig. 1-2, a low drag brake caliper includes a caliper body 10, a lug 11 disposed at an inner side of the caliper body 10 is connected with a guide pin 13 through a lock bolt 12, two inner and outer friction plates 20, 30 disposed in parallel are disposed in the caliper body 10, upper portions of the inner and outer friction plates 20, 30 are connected through a splayed spring 40, two sides of the inner friction plate 20 and/or the outer friction plate 30 are respectively provided with a spring leaf 50, a connection point of the spring leaf 50 and the inner friction plate 20 and/or the outer friction plate 30 is located on a center line of the inner friction plate 20 and/or the outer friction plate 30, and the spring leaf 50 provides elastic force to drive the inner friction plate 20 and/or the outer friction plate 30 to move towards a direction away from another friction plate. The above scheme includes three situations, i.e. two spring strips 50 are only arranged on two sides of the back plate of the inner friction plate 20, two spring strips 50 are only arranged on two sides of the back plate of the outer friction plate 30, and three spring strips 50 are arranged on two sides of the back plates of the inner friction plate 20 and the outer friction plate 30, wherein preferably, four spring strips 50 are added, i.e. one spring strip 50 is added at each of two ends of the inner friction plate 20 and the outer friction plate 30. When braking, hydraulic pressure enters the brake caliper from an oil inlet of the brake caliper, the piston pushes the inner friction plate 20 to move towards the direction of the brake disc under the action of the hydraulic pressure, the brake caliper body 10 moves in a reverse direction relative to the piston under the action of the hydraulic pressure by taking the guide pin 13 as a guide, the outer friction plate 30 is pulled to move towards the direction of the brake disc, the opposite movement of the piston and the brake caliper body 10 finally enables the inner friction plate 20 and the outer friction plate 30 to clamp the brake disc, and at the moment, the splayed spring 40 is compressed to store energy. When the brake is released, the hydraulic pressure in the brake caliper is released, under the action of the energy released by the splayed spring 40, the brake caliper body 10 moves relative to the piston by taking the guide pin 13 as a guide, in order to ensure that the inner and outer friction plates 20 and 30 can slide and return in parallel, the spring pieces 50 of the inner and outer friction plates 20 and 30 are arranged on the central lines of the inner and outer friction plates 20 and 30, the spring pieces 50 are ensured to elastically deform and return to generate force which can uniformly act on the central lines of the friction plates, the phenomenon that the inclined angle is generated in the return process of the friction plates to cause the uneven contact between a brake disc and the friction plates is avoided, the eccentric wear of the friction plates is generated, and the service life of the friction plates is shortened.
As shown in fig. 3, the spring plate 50 is shaped like a Chinese character 'ji', and includes a U-shaped main body 51 with an opening facing the inner/outer friction plate 20/30, a connecting flange 52 extends from a side plate of the U-shaped main body 51 near the inner/outer friction plate 20/30, the connecting flange 52 abuts against and is riveted with a back plate of the inner/outer friction plate 20/30, a U-shaped baffle 53 extends from a side plate of the U-shaped main body 51 near the caliper body 10, and a bottom of the U-shaped baffle 53 abuts against the caliper body 10. The rigidity of the spring piece 50 is designed, the weight of a single friction plate is determined to be Mkg according to the formula of the friction plate after model selection, and the piston return amount is 0.2-0.6 mm. In order to ensure that the friction plate can return smoothly, according to the calculation of the return rigidity of the friction plate: c is 0.5Mg/0.2, three-dimensional data design is carried out according to the rigidity of the spring piece 50, and meanwhile CAE simulation analysis is combined to determine that the rigidity of the return spring piece meets the requirement of a calculated value.
The connecting flange 52 is riveted at the center line of the inner/outer friction plate 20/30, and the center line of the leaf spring 50 coincides with the center line of the inner/outer friction plate 20/30. The spring piece 50 is ensured to be elastically deformed and returned to generate force which can uniformly act on the central line of the friction plate, so that the condition that the inclination angle is generated in the returning process of the friction plate to cause the uneven contact between the brake disc and the friction plate is avoided, the eccentric wear of the friction plate is generated, and the service life of the friction plate is shortened.
The two side plates of the U-shaped main body 51 are different in length, the opening of the U-shaped baffle 53 is arranged away from the brake caliper body 10, and clamping grooves which are in clamping fit with the U-shaped baffle 53 are formed in the support lugs 11 on the two sides of the brake caliper body 10 at the position corresponding to the U-shaped baffle 53, so that the connection reliability is ensured.
The splayed springs 40 are respectively arranged at two sides of the upper parts of the inner and outer friction plates 20 and 30, the openings of the two splayed springs 40 are arranged in an opposite way, and two supporting legs of the splayed springs 40 are respectively inserted into insertion holes formed in the inner and outer friction plates 20 and 30 to form fixed fit. During braking, the two splayed springs 40 are close to the inner friction plate 20 and the outer friction plate 30, the two supporting legs of the splayed springs 40 are compressed to store energy, after braking is finished, the splayed springs 40 release energy to push the inner friction plate 20 and the outer friction plate 30 to be separated, and the auxiliary effect of the four spring pieces 50 is added, so that the inner friction plate 20 and the outer friction plate 30 are enabled to return in parallel, the eccentric wear of the friction plates is avoided, the service life of the friction plates is prolonged, and the oil consumption of a vehicle can be reduced.
Claims (5)
1. The utility model provides a low dragging brake caliper, includes the brake caliper body (10), the inboard journal stirrup (11) that sets up of brake caliper body (10) be connected with uide pin (13) through locking bolt (12), be provided with two parallel arrangement inside and outside friction disc (20, 30) in brake caliper body (10), the upper portion position department of inside and outside friction disc (20, 30) is connected through splayed spring (40), its characterized in that: two sides of the inner friction plate (20) and/or the outer friction plate (30) are respectively provided with a spring leaf (50), the connection points of the spring leaves (50) and the inner friction plate (20) and/or the outer friction plate (30) are positioned on the central line of the inner friction plate (20) and/or the outer friction plate (30), and the spring leaves (50) provide elastic force to drive the inner friction plate (20) and/or the outer friction plate (30) to move towards the direction away from the other friction plate.
2. A low drag brake caliper according to claim 1, wherein: the spring piece (50) is integrally shaped like a Chinese character 'ji', and comprises a U-shaped main body (51) with an opening arranged towards an inner/outer friction plate (20/30), a connecting flange (52) extends from a side plate of the U-shaped main body (51) close to one side of the inner/outer friction plate (20/30), the connecting flange (52) is attached to and riveted with a back plate of the inner/outer friction plate (20/30), a U-shaped baffle (53) extends from a side plate of the U-shaped main body (51) close to one side of a brake caliper body (10), and the bottom of the U-shaped baffle (53) is abutted to the brake caliper body (10).
3. A low drag brake caliper according to claim 2, wherein: the connecting flange (52) is riveted on the central line position of the inner/outer friction plate (20/30), and the central line of the spring piece (50) is coincident with the central line of the inner/outer friction plate (20/30).
4. A low drag brake caliper according to claim 2, wherein: the length of two lateral plates of the U-shaped main body (51) is different, the opening of the U-shaped baffle (53) is arranged away from the brake caliper body (10), and clamping grooves which are in clamping fit with the U-shaped baffle (53) are arranged on the support lugs (11) on two sides of the brake caliper body (10) at the position corresponding to the U-shaped baffle (53).
5. A low drag brake caliper according to claim 1, wherein: the splayed springs (40) are respectively arranged at two sides of the upper parts of the inner and outer friction plates (20, 30), openings of the two splayed springs (40) are arranged in a reverse manner, and two supporting legs of the splayed springs (40) are respectively inserted into insertion holes formed in the inner and outer friction plates (20, 30) to form fixed fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123058736.9U CN216691951U (en) | 2021-12-07 | 2021-12-07 | Low drag brake caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123058736.9U CN216691951U (en) | 2021-12-07 | 2021-12-07 | Low drag brake caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216691951U true CN216691951U (en) | 2022-06-07 |
Family
ID=81838424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123058736.9U Active CN216691951U (en) | 2021-12-07 | 2021-12-07 | Low drag brake caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216691951U (en) |
-
2021
- 2021-12-07 CN CN202123058736.9U patent/CN216691951U/en active Active
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