CN219413337U - Friction plate return structure of fixed brake caliper, fixed brake caliper and automobile - Google Patents

Abstract

The utility model provides a friction plate return structure of a fixed brake caliper, the fixed brake caliper and an automobile, wherein the friction plate return structure comprises a return spring arranged on a guide pin, the return spring is positioned between two friction plates arranged on the guide pin in a sliding manner, and both ends of the return spring are provided with a first abutting part abutting against the inner side of the friction plate and a second abutting part abutting against the upper side of the friction plate; when the vehicle brakes, the two friction plates can compress the return spring through the first abutting parts at the two ends, and when the vehicle brakes are released, the return spring can drive the two friction plates to return through the first abutting parts at the two ends; the second abutting portions at the two ends are provided with pre-pressing forces applied to the friction plates corresponding to the second abutting portions, and the pre-pressing forces press the friction plates on the guide pins. The friction plate return structure can realize the active return of the friction plate, can effectively prevent abnormal sound generated by the friction plate striking the guide pin, and has better use effect.

Description

Friction plate return structure of fixed brake caliper, fixed brake caliper and automobile

Technical Field

The utility model relates to the technical field of brake calipers, in particular to a friction plate return structure of a fixed brake caliper. The utility model also relates to a fixed brake caliper provided with the friction plate return structure and an automobile provided with the fixed brake caliper.

Background

Common stationary calipers structurally include a caliper body, friction plates, guide pins, pistons, and the like. The friction plate is arranged on the guide pin, and the piston is pushed to move through hydraulic pressure during braking, and the friction plate clamps the brake disc under the action of the piston to generate braking torque so as to realize vehicle deceleration.

The return of the friction plate on the brake caliper is mostly realized by the thrust of the piston outer rectangular sealing ring deformation and the brake disc end face runout on the friction plate. However, this return method cannot achieve complete separation of the friction plate and the brake disc, and there is frictional contact between the friction plate and the brake disc. The friction contact between the friction plate and the brake disc can cause the problems of eccentric wear, abnormal sound, rapid wear and the like of the friction plate, and can cause the brake to have larger drag torque so as to increase the energy consumption of the vehicle.

Disclosure of Invention

In view of the above, the present utility model aims to provide a friction plate return structure of a fixed brake caliper, so as to realize active return of the friction plate and avoid abnormal sound generated by the friction plate striking a guide pin.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the friction plate return structure of the fixed brake caliper comprises a return spring arranged on a guide pin, wherein the return spring is positioned between two friction plates arranged on the guide pin in a sliding manner, and both ends of the return spring are respectively provided with a first abutting part abutting against the inner side of the friction plate and a second abutting part abutting against the upper side of the friction plate;

when the vehicle brakes, the two friction plates can compress the return springs through the first abutting parts at the two ends, and when the vehicle brakes are released, the return springs can drive the two friction plates to return through the first abutting parts at the two ends;

the second abutting portions at the two ends are provided with pre-pressing force applied to the friction plate corresponding to the second abutting portions, and the pre-pressing force presses the friction plate on the guide pin.

Further, the return spring comprises a middle section positioned in the middle, end sections positioned at two ends, and a connecting section connected between each of the end sections and the intermediate section;

each connecting section is spiral and is wound on the guide pin, the first abutting parts and the second abutting parts at the two ends are located on the end sections of the corresponding ends, the middle section abuts against the guide pin, and the second abutting parts at the two ends form the pre-pressure.

Further, the method comprises the steps of, the middle section is V-shaped.

Further, each of the connection sections is wound one turn in the circumferential direction of the guide pin as seen in the axial direction of the guide pin.

Further, the first abutting portion and the second abutting portion of the two ends are integrally formed by the end sections of the corresponding ends.

Further, the end sections of each end have an end portion at the end of the return spring and a curved portion connected to the end portion in a curved shape; the distal end portion abuts against the inner side of the friction plate and constitutes the first abutting portion, and the curved portion abuts against the upper side of the friction plate and constitutes the second abutting portion.

Further, the inner sides of the two friction plates are respectively provided with an abutting plane, and each first abutting part abuts against the corresponding abutting plane; and/or upper side abutting surfaces are arranged on the upper sides of the two friction plates, and each second abutting part abuts against the corresponding upper side abutting surface.

Compared with the prior art, the utility model has the following advantages:

according to the friction plate return structure of the fixed brake caliper, the first abutting parts and the second abutting parts are arranged at the two ends of the return spring, and the first abutting parts and the second abutting parts can be respectively abutted on the inner side and the upper side of the friction plate, so that when a vehicle brakes, the two friction plates compress the return spring through the first abutting parts at the two ends, the return spring accumulates elastic force, and when the braking is released, the return spring releases the elastic force, and the two friction plates are driven to return through the first abutting parts at the two ends, so that the active return of the friction plates can be realized.

Meanwhile, the second abutting parts at the two ends can apply pre-pressure to the friction plates corresponding to the friction plates, the friction plates can be tightly pressed on the guide pins under the action of the pre-pressure force, abnormal sound caused by the fact that the friction plates strike the guide pins can be effectively prevented, and therefore the problems of eccentric wear, abnormal sound, rapid wear and the like of the friction plates caused by poor return of the friction plates can be effectively solved, and the friction plate device has a good use effect.

In addition, return spring has interlude, linkage segment and two tip sections to twine on the guide pin through the linkage segment, be favorable to improving return spring's installation effect, and make the interlude support and press on the guide pin, the second butt portion at both ends forms precompression, so under return spring's pre-compaction effect, make the friction disc compress tightly on the guide pin, prevent the friction disc and move for the guide pin, and can effectively prevent the abnormal sound emergence of friction disc.

And secondly, the middle section is arranged in a V shape, so that the compression accumulation of the return spring and the release of the elastic force are facilitated. Each connecting section is wound along the circumference of the guide pin for a circle, so that the falling of the return spring can be effectively prevented, and the installation effect of the return spring on the guide pin can be improved. The first abutting part and the second abutting part at the two ends are integrally formed by the end sections of the corresponding ends, the return spring has the characteristics of simple structure, lower manufacturing cost and easy installation.

In addition, the end section has a tip portion for abutting against the inside of the friction plate and a bent portion for abutting against the upper side of the friction plate, so that the return spring is simple in structure and easy to manufacture. Moreover, the abutting plane is arranged on the inner side of the friction plate, so that the abutting effect of the first abutting part on the friction plate is improved.

Another object of the present utility model is to propose a stationary brake caliper in which the friction plate return structure of the stationary brake caliper as described above is provided.

Further, the friction plate return structure is two groups symmetrically arranged in the fixed brake caliper.

The fixed brake caliper provided by the utility model has the advantages that the friction plate return structure is applied, so that the dragging moment of the brake can be effectively reduced, and the service life of the fixed brake caliper is prolonged.

The utility model also relates to a motor vehicle in which a stationary brake caliper as described above is provided.

The automobile provided by the utility model can effectively reduce the drag torque of the brake by adopting the fixed brake caliper, reduce the energy consumption of the whole automobile, and simultaneously is beneficial to prolonging the service life of the fixed brake caliper, so that the fixed brake caliper has good practicability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of a friction plate return structure of a stationary brake caliper according to an embodiment of the present utility model;

FIG. 2 is a front view of a return spring according to an embodiment of the present utility model;

FIG. 3 is a top view of a return spring according to an embodiment of the present utility model;

FIG. 4 is a left side view of a return spring according to an embodiment of the present utility model;

FIG. 5 is a perspective view of a return spring according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a stationary brake caliper according to an embodiment of the present utility model;

FIG. 7 is an exploded view of a stationary brake caliper according to an embodiment of the present utility model;

reference numerals illustrate:

1. guide pin the method comprises the steps of carrying out a first treatment on the surface of the; 2. a friction plate; 201. an upper abutment surface; 202. abutting against the plane; 3. a return spring; 301. an intermediate section; 302. an end section; 3021. a first abutting portion; 3022. a second abutting portion; 303. a connection section; 4. a clamp body; 5. and (3) a piston.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

The embodiment relates to a friction plate return structure of a fixed brake caliper, which can realize active return of a friction plate and can avoid abnormal sound generated by the friction plate striking a guide pin.

In the whole structure, as shown in fig. 1, the friction plate return structure of the fixed brake caliper of the present embodiment mainly includes a return spring 3 disposed on a guide pin 1, the return spring 3 is disposed between two friction plates 2 slidably disposed on the guide pin 1, and both ends of the return spring 3 are provided with a first abutting portion 3021 abutting against the inner side of the friction plate 2 and a second abutting portion 3022 abutting against the upper side of the friction plate 2.

At the time of vehicle braking, the two friction plates 2 can compress the return spring 3 by the first abutting portions 3021 at both ends, so that the return spring 3 accumulates elastic force. When the braking is released, the return spring 3 releases the elastic force, and can drive the two friction plates 2 to return through the first abutting portions 3021 at the both ends, so that the active return of the friction plates 2 can be realized.

Further, the second abutting portions 3022 at both ends each have a pre-pressing force applied to the friction plate 2 corresponding thereto, and the pre-pressing force presses the friction plate 2 against the guide pin 1. That is, the two ends of the return spring 3 can apply vertical downward pre-pressure to the friction plate 2 corresponding to the return spring, under the action of the pre-pressure force, the installation holes on the friction plate 2 for installing the guide pins 1 can compress the guide pins 1, so that abnormal sound generated by the friction plate striking the guide pins 1 can be effectively prevented, and the problems of eccentric wear, abnormal sound, rapid wear and the like of the friction plate caused by poor return of the friction plate can be effectively solved.

In detail, as shown in fig. 2 to 5 in combination with fig. 1, the return spring 3 of the present embodiment specifically includes a middle section 301 located in the middle, end sections 302 located at both ends, and a connecting section 303 connected between each of the end sections 302 and the middle section 301.

Each connecting section 303 is spiral and wound around the guide pin 1, the first abutting portion 3021 and the second abutting portion 3022 at both ends are located on the end section 302 at the corresponding end, the middle section 301 abuts against the guide pin 1, and the second abutting portions 3022 at both ends form a pre-compression force.

In this structure, twine on guide pin 1 through linkage segment 303, be favorable to improving return spring 3's installation effectiveness to make interlude 301 support and press on guide pin 1, the second butt portion 3022 at both ends forms precompression, so under return spring 3's precompression effect, make friction disc 2 compress tightly on guide pin 1, with prevent friction disc 2 motion for guide pin 1, and can effectively prevent the abnormal sound that produces because of friction disc 2 striking guide pin 1.

As a preferred implementation of the present embodiment, in the present embodiment, referring to fig. 2 to 5, the middle section 301 of the return spring 3 is in a "V" shape, so that compression of the return spring 3 is facilitated to accumulate elastic force and also facilitate release of the elastic force and enhance the active return effect of the friction plate 2 when braking or releasing braking.

With continued reference to fig. 2 to 5, in this embodiment, each connecting section 303 is wound around the guide pin 1 along the circumferential direction of the guide pin 1 as viewed in the axial direction of the guide pin 1, so that the return spring 3 is effectively prevented from falling off the guide pin 1, thereby facilitating improvement of the installation effect of the return spring 3 on the guide pin 1.

In this embodiment, as a preferred embodiment, the first abutting portion 3021 and the second abutting portion 3022 at both ends are integrally formed with the end section 302 at the corresponding ends. So that return spring 3 has simple structure, low in manufacturing cost, and easy installation's characteristics.

Furthermore, in the present embodiment, the end sections 302 at both ends each have an end portion located at the end of the return spring 3, and a curved portion in a curved shape connected to the end portion. Wherein the end portion is abutted against the inner side of the friction plate 2, and constitutes a first abutting portion 3021, the curved portion abuts on the upper side of the friction plate 2, and constitutes a second abutting portion 3022. The arrangement of the end part and the bending part makes the structure of the return spring 3 simpler and easy to manufacture.

In order to facilitate the contact between the first contact portion 3021 and the second contact portion 3022 and the friction plates 2, in this embodiment, contact planes 202 are provided on the inner sides of the two friction plates 2, upper contact surfaces 201 are provided on the upper sides of the two friction plates 2, and each first contact portion 3021 contacts the corresponding contact plane 202, and each second contact portion 3022 contacts the corresponding upper contact surface 201. Thus, the first abutting portion 3021 and the second abutting portion 3022 can be better abutted against the friction plate 2, which is beneficial to improving the abutting and matching effect of the return spring 3 and the friction plate 2. The upper contact surface 201 may be a flat surface or a curved surface provided on the upper side of the friction plate 2, and is preferably a concave curved surface to improve the contact stability between the second contact portion 3022 and the upper side of the friction plate 2.

The friction disc return structure of the fixed brake caliper of the embodiment not only can realize the initiative return of the friction disc 2 through the return spring 3 that sets up, but also can apply precompression to the friction disc 2 corresponding to the friction disc, so that the friction disc 2 is tightly pressed on the guide pin 1, abnormal sound generated when the friction disc 2 impacts the guide pin 1 can be effectively prevented, and the problems of eccentric wear, abnormal sound, rapid wear and the like of the friction disc 2 caused by poor return of the friction disc 2 can be effectively solved.

Example two

The present embodiment relates to a stationary brake caliper in which the friction plate return structure of the stationary brake caliper in the first embodiment is provided.

As shown in fig. 6 and 7 in combination with fig. 1, the stationary brake caliper of the present embodiment structurally includes two caliper bodies 4 connected together, a guide pin 1 provided between the two caliper bodies 4, a plurality of pistons 5 slidably provided on each caliper body 4, and two oppositely disposed friction plates 2, the two friction plates 2 being slidably mounted on the guide pin 1, and the guide pin 1 being provided with the return spring 3 described above. The caliper body 4 is also provided with a hydraulic circuit through which a liquid flows.

In this embodiment, referring to fig. 6, 7 and 1, a return spring 3 is sleeved on the guide pin 1, and the return spring 3 is located between two friction plates 2. Specifically, the first abutting portions 3021 at the two ends of the return spring 3 abut against the abutting plane 202 of the friction plate 2 corresponding thereto, the second abutting portions 3022 at the two ends of the return spring 3 abut against the upper abutting plane 201 of the friction plate 2 corresponding thereto, and the second abutting portions 3022 at the two ends each have a pre-pressing force applied to the friction plate 2 corresponding thereto, so that the friction plate 2 is pressed against the guide pin 1 by the pre-pressing force, and abnormal noise generated by the friction plate 2 striking the guide pin is effectively prevented.

It should be noted that, in the above-mentioned fixed caliper structure, the caliper body 4, the piston 5, the hydraulic circuit formed on the caliper body 4, and the like, reference may be made to a mature structure in the prior art, and this embodiment will not be described in detail.

In the fixed brake caliper of the embodiment, when a specific brake is applied, the piston 5 is pushed to move by hydraulic pressure, the friction plates 2 move towards each other under the action of the piston 5 to clamp the brake disc, and generates braking torque to thereby achieve deceleration of the vehicle, at which time the return spring 3 accumulates elastic force due to the opposite movement of the two friction plates 2. When the brake is released, the return spring 3 releases the elastic force, the two friction plates 2 are far away from each other under the elastic force, so that the active return of the friction plates is realized. The return spring 3 has a pre-pressing force applied to the corresponding friction plate 2, and under the action of the pre-pressing force, the friction plate 2 can be pressed on the guide pin 1, so that abnormal sound of the friction plate 2 in movement can be effectively prevented.

As a preferred embodiment of the present embodiment, in the present embodiment, the above-described friction plate return structure is two groups symmetrically arranged in the fixed caliper, that is, as shown in fig. 6 and 7, two guide pins 1 are provided between two opposite friction plates 2, which are arranged at intervals, and return springs 3 are provided on each guide pin 1. By the arrangement, when braking or releasing braking, the motion stress of the friction plate 2 is more balanced, the motion stability of the friction plate 2 is improved, and the problems of eccentric wear or abnormal sound of the friction plate 2 can be effectively prevented.

The fixed brake caliper of the embodiment can effectively reduce the dragging moment of the brake by arranging the friction plate return structure, reduce the energy consumption of the whole vehicle and be beneficial to prolonging the service life of the fixed brake caliper.

Example III

The present embodiment relates to an automobile in which the stationary caliper of the second embodiment is provided. The automobile of this embodiment can effectively reduce the drag torque of the brake through setting up foretell fixed brake caliper, reduces whole car energy consumption, also does benefit to simultaneously and promotes fixed brake caliper's life, and helps promoting whole car quality.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A friction plate return structure of fixed brake caliper is characterized in that:

the guide pin comprises a return spring (3) arranged on a guide pin (1), wherein the return spring (3) is positioned between two friction plates (2) arranged on the guide pin (1) in a sliding manner, and both ends of the return spring (3) are provided with a first abutting part (3021) abutted against the inner side of the friction plates (2) and a second abutting part (3022) abutted against the upper side of the friction plates (2);

when the vehicle brakes, the two friction plates (2) can compress the return spring (3) through the first abutting parts (3021) at the two ends, and when the vehicle brakes are released, the return spring (3) can drive the two friction plates (2) to return through the first abutting parts (3021) at the two ends;

the second abutment portions 3022 at both ends each have a pre-pressing force applied to the friction plate 2 corresponding thereto, and the pre-pressing force presses the friction plate 2 against the guide pin 1.

2. The friction plate return structure of a stationary brake caliper according to claim 1, wherein:

the return spring (3) comprises a middle section (301) positioned in the middle, end sections (302) positioned at two ends, and a connecting section (303) connected between each end section (302) and the middle section (301);

each connecting section (303) is spiral and is wound on the guide pin (1), the first abutting part (3021) and the second abutting part (3022) at two ends are located on the end section (302) at the corresponding end, the middle section (301) abuts against the guide pin (1), and the second abutting parts (3022) at two ends form the pre-compression force.

3. The friction plate return structure of a stationary brake caliper according to claim 2, wherein:

the intermediate section (301) is "V" -shaped.

4. The friction plate return structure of a stationary brake caliper according to claim 2, wherein:

each of the connecting sections (303) is wound one turn in the circumferential direction of the guide pin (1) as seen in the axial direction of the guide pin (1).

5. The friction plate return structure of a stationary brake caliper according to claim 2, wherein:

the first and second abutment portions (3021, 3022) of both ends are integrally formed from the end sections (302) of the respective ends.

6. The friction plate return structure of a stationary brake caliper according to claim 5, wherein:

the end sections (302) of each end have a terminal portion at the terminal end of the return spring (3) and a curved portion connected to the terminal portion in a curved shape;

the distal end portion abuts against the inner side of the friction plate (2) and constitutes the first abutting portion (3021), and the curved portion abuts against the upper side of the friction plate (2) and constitutes the second abutting portion (3022).

7. The friction plate return structure of a stationary brake caliper according to any one of claims 1 to 6, characterized in that:

an abutting plane (202) is arranged on the inner sides of the two friction plates (2), and each first abutting part (3021) abuts against the corresponding abutting plane (202); and/or the number of the groups of groups,

an upper contact surface (201) is provided on the upper side of each of the two friction plates (2), and each of the second contact portions (3022) is brought into contact with the corresponding upper contact surface (201).

8. A stationary brake caliper, characterized by:

the stationary brake caliper is provided therein with the friction plate return structure of the stationary brake caliper according to any one of claims 1 to 5.

9. A stationary brake calliper according to claim 8, wherein:

the friction plate return structure is two groups symmetrically arranged in the fixed brake caliper.

10. An automobile, characterized in that:

the stationary brake caliper according to claim 8 or 9 is provided in the automobile.