Lightweight pneumatic disc brake caliper body and brake

Abstract

The utility model discloses a light-weight pneumatic disc brake caliper body and a brake. The light-weight pneumatic disc brake caliper body comprises a box-shaped head part, a box-shaped tail part and a bridge-shaped middle part, the head part comprises a plurality of first weight reduction grooves which are symmetrically arranged, and the first weight reduction grooves penetrate through the top end face of the head part and enable the interior of the head part to be hollow; the tail part comprises a second weight reduction groove which is arranged in a penetrating mode from the front end face of the tail part. The middle portion comprises two waist portions which are identical in structure and symmetrically arranged, each waist portion comprises a waist portion front end face and a waist portion side end face integrally connected with the waist portion front end face, the waist portion front end face is provided with a third weight reduction groove, and the waist portion side end face is provided with a fourth weight reduction groove. A plurality of areas of the waist part, the head part and the tail part are grooved, and materials in non-structural areas are removed under the condition that the original design strength of the caliper body is ensured, so that the weight of the caliper body is reduced, the dead weight of the brake is reduced, and the overall weight of an automobile is reduced to achieve the lightweight design of the whole automobile.

Description

Technical Field

[0001] The utility model belongs to the technical field of brakes, and particularly relates to a lightweight pneumatic disc brake caliper and a brake. Background Art

[0002] Disc brakes have been widely used in cars, buses and dangerous goods vehicles. In disc brakes, pneumatic disc brakes are controlled by air pressure, and the main components include brake discs, air chambers, brake calipers, brackets, etc. Disc brakes have the advantages of fast heat dissipation, light weight, simple structure and convenient adjustment. With the increasingly complex road traffic environment, vehicle manufacturers' expectations and standards for the performance of braking systems are also constantly improving. In the context of the overall lightweight of commercial vehicles, the requirements for the performance parameters of functional pneumatic disc brakes are also continuously increasing. In the prior art, pneumatic disc brakes urgently need to be optimized for weight reduction and performance improvement on this basis. Summary of the Utility Model

[0003] Aiming at the deficiencies of the above-mentioned prior art, the utility model provides a lightweight pneumatic disc brake caliper and a brake to solve the technical problem of the overall lightweight of commercial vehicles.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A box-shaped head, including a plurality of symmetrically arranged first weight-reducing grooves, the first weight-reducing grooves penetrate from the top end surface of the head and make the inside of the head hollow;

[0006] A box-shaped tail, including a second weight-reducing groove, the second weight-reducing groove penetrates from the front end surface of the tail; and

[0007] A bridge-shaped middle part, including two waists with the same structure and symmetrically arranged, the waist includes a waist front end surface and a waist side end surface integrally connected to the waist front end surface, the waist front end surface has a third weight-reducing groove, and the waist side end surface has a fourth weight-reducing groove;

[0008] Wherein, the head and the tail have the same axis of symmetry, and the waist is integrally connected to the head and the tail, thereby forming a symmetric structure of the caliper.

[0009] In some embodiments, the width of the top end surface of the head is less than the distance between the two waists in the middle part, and the head further includes two head side end surfaces. One end of each of the two head side end surfaces is integrally connected to both ends of the top end surface of the head, and the other end of each of the two head side end surfaces inclines towards the waist front end surface of the waist and is integrally connected thereto.

[0010] In some embodiments, the outer edge of the second weight-reducing groove of the tail is closely attached to the outer peripheral edge of the front end surface of the tail.

[0011] In some embodiments, the third weight-reducing groove on the waist has an axially variable cross-section. In some embodiments, the fourth weight-reducing groove on the waist is provided at the connection between the side end face of the waist and the tail, with a straight section edge at one end close to the tail and an arc-shaped edge at the other end far from the tail, and the overall shape is bow-shaped.

[0012] In some embodiments, the width of the middle section of the front end face of the waist is smaller than the widths of its two ends.

[0013] In some embodiments, the wall thicknesses of the front end face of the tail and the front end face of the waist are both smaller than the wall thicknesses of other end faces.

[0014] In some embodiments, there are reinforcing ribs on the outside of the guide pin of the head.

[0015] In a second aspect, a brake is provided, including all the lightweight pneumatic disc brake calipers described above.

[0016] The beneficial effects of the present utility model are as follows: Grooves are dug in several areas of the waist, head, and tail, and materials in non-structural areas are removed while ensuring the original design strength of the caliper, so as to reduce the weight of the caliper, lighten the self-weight of the brake, and thus reduce the overall weight of the vehicle to achieve the overall vehicle lightweight design. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the lightweight pneumatic disc brake caliper provided by the present utility model in a first perspective in an embodiment;

[0019] Figure 2 It is a schematic diagram of the overall structure of the lightweight pneumatic disc brake caliper provided by the present utility model in a second perspective in an embodiment;

[0020] Figure 3 It is a schematic diagram of the overall structure of the head of the lightweight pneumatic disc brake caliper provided by the present utility model in an embodiment;

[0021] Figure 4 It is a schematic diagram of the overall structure of the tail of the lightweight pneumatic disc brake caliper provided by the present utility model in an embodiment.

[0022] Figure 5It is a schematic diagram of the overall structure of the positive end face of the waist in the lightweight air disc brake caliper provided by the present utility model in an embodiment.

[0023] Figure 6 It is a schematic diagram of the overall structure of the side end face of the waist in the lightweight air disc brake caliper provided by the present utility model in an embodiment. Detailed implementation manners

[0024] For a better understanding of the technical solutions of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0025] As Figure 1-2 shown, a lightweight air disc brake caliper and a brake are provided, including a head 10 in the shape of a box, a tail 20 in the shape of a box, and a middle part 30 in the shape of a bridge.

[0026] The head 10 includes a number of symmetrically arranged first weight-reducing grooves 101, and the first weight-reducing grooves 101 penetrate through from the top end face 102 of the head, making the inside of the head 10 hollow.

[0027] As Figure 1-3 shown, in an embodiment, the width of the top end face 102 of the head 10 is smaller than the distance between two waists 301 in the middle part 30. The head 10 further includes two side end faces 103 of the head. One ends of the two side end faces 103 of the head are integrally connected to the two ends of the top end face 102 of the head respectively, and the other ends thereof are inclined towards the positive end face 3011 of the waist 301 and integrally connected thereto.

[0028] It can be understood that because the width of the top end face 102 of the head 10 is smaller than the distance between two waists 301 in the middle part 30, the two side end faces 103 of the head are inclined from the two ends of the top end face 102 towards the positive end face 3011 of the waist 301 respectively, which can increase the stress of the two waists 301. According to the experience accumulation of the database, the increased stress is sufficient to meet the fatigue strength requirements during braking.

[0029] The tail 20 includes a second weight-reducing groove 201, and the second weight-reducing groove 201 penetrates through from the front end face 202 of the tail.

[0030] As Figure 4 shown, in an embodiment, the outer edge of the second weight-reducing groove 201 of the tail 20 is closely attached to the outer peripheral edge of the front end face 202 of the tail.

[0031] It can be understood that this design maximally increases the width of the second weight-reducing groove 201, thereby achieving weight reduction of the tail 20. It is actually verified through laboratory static fatigue tests that the method of increasing the width of the second weight-reducing groove 201 has no impact on the structural life.

[0032] The middle part 30 includes two waist parts 301 which are identical in structure and symmetrically arranged. The waist part 301 includes a waist front end face 3011 and a waist side end face 3012 integrally connected to the waist front end face 3011. The waist front end face 3011 has a third weight reduction groove 302, and the waist side end face 3012 has a fourth weight reduction groove 303.

[0033] As Figure 5 shown, in one embodiment, the third weight reduction groove 302 of the waist part 301 has an axially variable cross-section.

[0034] It can be understood that through actual testing of the laboratory dynamic torsional fatigue test, it is proved that the appropriate removal of the caliper body material at this part enables the caliper body to still have sufficient fatigue strength to meet the requirements of the braking condition while reasonably weakening the overall structural strength.

[0035] As Figure 6 shown, in one embodiment, the fourth weight reduction groove 303 of the waist part 301 is arranged at the connection between the waist side end face 3012 and the tail part 20. The end close to the tail part 20 has a straight section edge, and the end far from the tail part 20 has an arc-shaped edge. The overall shape is bow-shaped.

[0036] The shape is bow-shaped. As Figure 5 shown, in one embodiment, the width of the middle section of the waist front end face 3011 is smaller than the widths of its two ends.

[0037] It can be understood that the above treatment ensures that the caliper body has sufficient fatigue strength to meet the requirements of the braking condition while reasonably weakening the overall structural strength of the caliper body, and at the same time reduces the stress in the area with relatively large local stress of the two waist parts 301, increasing the safety factor here. It can also avoid the too strong rigidity at the middle position of the two waist parts 301, which has a negative impact on the local stress of the two waist parts 301 during braking.

[0038] Among them, the head part 10 and the tail part 20 have the same symmetry axis 40, and the waist part 301 is integrally connected to the head part 10 and the tail part 20, thus forming a symmetric structure of the caliper.

[0039] In one embodiment, the wall thicknesses of the front end face 202 of the tail part and the waist front end face 3011 are both smaller than the wall thicknesses of other end faces. In one embodiment, there are reinforcing ribs on the outside of the guide pin of the head part 10.

[0040] It can be understood that the above treatment is the appropriate removal and local thickening of the caliper body material, and the caliper body still has sufficient fatigue strength to meet the requirements of the braking condition while reasonably weakening the overall structural strength.

[0041] The utility model performs grooving on several regions of the waist 301, the head 10, and the tail 20, and removes the materials in the non-structural regions while ensuring the original design strength of the pliers body, so as to reduce the weight of the pliers body. Through computer stress analysis and actual verification of the laboratory static fatigue test, grooving at the above-mentioned positions has no impact on the structural strength and service life.

[0042] The above is only the preferred embodiment of one or more embodiments of this specification, and is not intended to limit one or more embodiments of this specification. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of this specification shall be included within the scope of protection of one or more embodiments of this specification.

Claims

1. A lightweight pneumatic disc brake caliper body, characterized in that, Comprising: A box-shaped head including a number of symmetrically arranged first weight-reducing grooves, the first weight-reducing grooves being arranged to penetrate from the top end surface of the head and making the interior of the head hollow; A box-shaped tail including a second weight-reducing groove, the second weight-reducing groove being arranged to penetrate from the front end surface of the tail; and A bridge-shaped middle part including two waists with the same structure and symmetrically arranged, the waist including a waist front end face and a waist side end face integrally connected to the waist front end face, the waist front end face having a third weight-reducing groove and the waist side end face having a fourth weight-reducing groove; Wherein, the head and the tail have the same axis of symmetry, and the waist is integrally connected to the head and the tail, thereby forming a symmetric structure of the caliper.

2. The lightweight air disc brake caliper according to claim 1, wherein: The width of the top end surface of the head is less than the distance between the two waists in the middle part, and the head further includes two head side end faces, one ends of the two head side end faces are respectively integrally connected to the two ends of the top end surface of the head and the other ends are respectively inclined towards the waist front end face of the waist and integrally connected thereto.

3. The lightweight air disc brake caliper according to claim 1, wherein: The outer edge of the second weight-reducing groove of the tail is arranged closely against the outer peripheral edge of the front end surface of the tail.

4. The lightweight air disc brake caliper body according to claim 1, wherein: The third weight-reducing groove of the waist has an axially variable cross-section.

5. The lightweight air disc brake caliper according to claim 1, wherein: The fourth weight-reducing groove of the waist is arranged at the connection between the waist side end face and the tail, the end close to the tail is a straight section edge, and the end far from the tail is an arc-shaped edge, and the overall shape is bow-shaped.

6. The lightweight air disc brake caliper body according to claim 1, characterized in that: The width of the middle section of the waist front end face is less than the widths of its two ends.

7. The lightweight pneumatic disc brake caliper according to claim 1, characterized in that: The wall thicknesses of the front end surface of the tail and the waist front end face are both less than the wall thicknesses of other end faces.

8. The lightweight air pressure disc brake caliper according to claim 1, characterized in that: Reinforcing ribs are provided on the outside at the guide pin of the head.

9. A brake, characterized in that, Including the lightweight pneumatic disc brake caliper body according to any one of claims 1-8.

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