CN212055620U

CN212055620U - Friction plate and return spring fixing mechanism for fixing calipers

Info

Publication number: CN212055620U
Application number: CN202020606607.5U
Authority: CN
Inventors: 卢異松; 段占磊; 李双莉; 程家兵
Original assignee: WUHAN WANXIANG AUTOMOBILE BRAKE CO Ltd
Current assignee: WUHAN WANXIANG AUTOMOBILE BRAKE CO Ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-12-01
Anticipated expiration: 2030-04-21

Abstract

The utility model belongs to the technical field of automobile disc brakes, in particular to a friction plate and return spring fixing mechanism for fixing calipers, which comprises a spring piece, wherein the spring piece is pressed on the friction plate in the calipers; the spring piece is in a bilaterally symmetrical wave shape and comprises two wave crests and three wave troughs, and the three wave troughs respectively correspond to the two return springs on the friction plate and the middle groove; the clamp is characterized by further comprising U-shaped clamp springs, clamp spring insertion holes are formed in the front side and the rear side of the upper portion of the clamp corresponding to the middle of the friction plate, and the U-shaped clamp springs are inserted into the two clamp spring insertion holes and pressed in the middle of the spring piece; the U-shaped clamp spring is a long strip U-shaped clamp spring, one side of the U-shaped clamp spring is inserted into the clamp spring jack in a linear mode, and the end part of the other side of the U-shaped clamp spring is bent inwards to form a V-shaped clamp. The utility model is used for friction disc and return spring among the fixed caliper disc brake, friction disc and return spring dislocation drop and lead to the braking inefficacy when avoiding receiving external vibration.

Description

Friction plate and return spring fixing mechanism for fixing calipers

Technical Field

The utility model belongs to the technical field of car disc brake, concretely relates to friction disc and return spring fixed establishment of fixed calliper.

Background

The disc brake of automobile is also called disc brake, it is generally controlled by hydraulic pressure, the main parts include wheel cylinder, brake caliper (caliper), oil pipe, etc. The brake disc is made of alloy steel and fixed on the wheel to rotate with the wheel. The cylinder is fixed on the bottom plate of the brake and fixed, the two friction plates on the brake caliper are respectively arranged on two sides of the brake disc, the piston of the cylinder is under the action of hydraulic pressure transmitted by the oil pipe to push the friction plates to press the brake disc to generate friction braking, and the action is just like clamping the rotating disc by using a clamp to force the disc to stop.

The friction plate of the fixed caliper type disc brake has no active return function, and the friction plate clamps a brake disc under the action of a piston to generate braking force when braking every time, so that a vehicle is decelerated or stopped; when braking is finished, the piston firstly returns, and then the friction plate is thrown away from the brake disc through rotation of the brake disc to realize the return of the friction plate. However, the friction lining and the friction surface of the brake disc are quickly abraded due to the passive return of the friction plate, the service life of the friction plate is shortened, the probability of brake jitter is increased due to excessive abrasion of the brake disc, and the friction abrasion generates running resistance of the vehicle in a non-braking state, so that the fuel consumption of the vehicle is increased. At present, each manufacturer adds an active return mechanism on a caliper disc brake to help a friction plate return, and the friction plate returns faster and more in place through active return, so that dragging torque is reduced, unexpected abrasion between a brake disc and the friction plate is reduced, the fuel utilization rate is improved, the service life of the friction plate is prolonged, and the shaking occurrence rate is reduced. The common return mechanism is realized through a spring, for example, the spring is directly arranged between two friction plates, the return of the friction plates is realized through the elasticity of the spring, and if the friction plates and the spring cannot be well fixed, the fault position falls off, so that safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a friction disc and return spring fixed establishment of fixed calliper for friction disc and return spring in the fixed caliper disc brake avoid receiving external vibration friction disc and return spring dislocation drop and lead to the braking inefficacy.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a friction disc and return spring fixed establishment of fixed calliper which characterized in that includes:

the spring piece 2 presses the friction plate 7 in the caliper 1;

the clamp comprises a U-shaped clamp spring 3, clamp spring insertion holes 6 are formed in the front side and the rear side of the upper portion of the clamp 1, corresponding to the middle of the friction plate 7, and the U-shaped clamp spring 3 is inserted into the two clamp spring insertion holes 6 and pressed in the middle of the spring piece 2.

Further, the spring piece 2 is in a bilaterally symmetrical wave shape and comprises two wave crests and three wave troughs, and the three wave troughs respectively correspond to the two return springs on the friction plate 7 and the middle groove 9.

Furthermore, two ends of the middle wave trough of the spring piece 2 are provided with U-shaped notches 13.

Furthermore, the middle parts of two wave crests on the spring piece 2 are provided with square openings 12.

Further, U-shaped jump ring 3 is rectangular U type, and one side is linear type and inserts jump ring jack 6, and the end part on another side inwards bends into the V-arrangement and is used for blocking calliper 1.

Further, the end of the U-shaped clamp spring 3 is further provided with a clamp spring buckle 4, the clamp spring buckle 4 is of a 6-shaped structure formed by bending an elastic metal sheet, the annular part of the 6-shaped structure is sleeved on the linear edge of the U-shaped clamp spring 3, and the hook-shaped opening of the 6-shaped structure is clamped in the V-shaped part of the U-shaped clamp spring 3.

Furthermore, the outside of jump ring jack 6 on calliper 1 is equipped with a U-shaped notch 5, the higher authority and the side opening of U-shaped notch 5, jump ring jack 6 is located U-shaped notch 5.

The utility model has the advantages that: the utility model is used for friction disc and return spring among the fixed caliper disc brake, friction disc and return spring dislocation drop and lead to the braking inefficacy when avoiding receiving external vibration. The utility model discloses mainly include two parts: a piece of spring leaf and a U-shaped jump ring, the effect is that the friction disc dislocation drops and leads to the braking inefficacy when being used for avoiding receiving external vibration, and can push down U type groove, prevents effectively that the return spring of friction disc from popping out, plays the effect of fixed return spring to this mechanism is simple more swift when changing the friction disc.

Drawings

Fig. 1 is an overall schematic view of the present invention.

FIG. 2 is a schematic view of the caliper structure.

FIG. 3 is a top view of a spring plate.

FIG. 4 is a side view of a spring plate.

Fig. 5 is a schematic structural diagram of the U-shaped clamp spring.

Fig. 6 is a schematic structural diagram of the snap spring buckle.

In the figure: calliper 1, spring leaf 2, U-shaped jump ring 3, jump ring buckle 4, U-shaped notch 5, jump ring jack 6, friction disc 7, U-shaped open slot 8, recess 9, coil spring 10, centering pin 11, square opening 12, U-shaped breach 13.

Detailed Description

In order to better understand the present invention, the technical solution of the present invention is further described below with reference to the following embodiments.

Example (b):

taking a fixed caliper with a friction plate active return mechanism produced by the company as an example, as shown in fig. 2, the fixed caliper comprises a caliper 1, two friction plates 7 are arranged in the caliper 1; the two ends of the steel back of each friction plate 7 are respectively provided with a U-shaped open slot 8, a centering pin 11 is arranged in the corresponding U-shaped open slot 8 between the two friction plates 7, a spiral spring 10 (return spring) is sleeved on the centering pin 11, the spiral spring 10 is positioned between the two friction plates 7, and the two friction plates 7 are actively returned through resilience force; a groove 9 can be arranged in the middle of the friction plate 7.

As shown in fig. 1, a fixing mechanism for fixing a friction plate and a return spring of a caliper includes:

the spring piece 2 presses the friction plate 7 in the caliper 1;

as shown in fig. 4 and 1, the spring plate 2 is made of a stainless steel material and has symmetrical wavy sheets, two ends of the spring plate are straight planes, the middle of the spring plate is a wavy surface (M-shaped), and the middle of the spring plate is concave (trough), so that the spring plate can be conveniently compressed by the U-shaped clamp spring. The whole friction plate comprises two wave crests and three wave troughs (corresponding to five bends), wherein the three wave troughs respectively correspond to two spiral springs 10 on the friction plate 7 and a middle groove 9.

As shown in fig. 3, two ends of the middle wave trough of the spring piece 2 are provided with U-shaped notches 13 for releasing and reducing stress generated during bending; the spring piece 2 is provided with square openings 12 in the middle of two wave crests, is also used for releasing and reducing stress generated during bending, and can also be used as an observation hole. And also saves material.

U-shaped clamp spring 3, the middle position that corresponds friction disc 7 in both sides around calliper 1 upper portion has seted up U-shaped notch 5, the higher authority and the side opening of U-shaped notch 5, it has jump ring jack 6 to open in the U-shaped notch 5.

The U-shaped clamp spring 3 is made of a stainless steel material, is in a long strip U shape, and has one side inserted into the clamp spring insertion hole 6 in a linear manner and pressed at the concave part (wave trough) in the middle of the spring piece 2; the end part of the other side is bent inwards to form a V shape for clamping the caliper 1. The U-shaped bend and the V-shaped bend of the U-shaped clamp spring 3 fall into the corresponding U-shaped notch 13.

The end of the U-shaped clamp spring 3 is further provided with a clamp spring buckle 4, as shown in fig. 6, the clamp spring buckle 4 is of a 6-shaped structure formed by bending a stainless steel metal sheet with a certain thickness, the annular part of the 6-shaped structure is sleeved on the linear edge of the U-shaped clamp spring 3, and the hook-shaped opening of the 6-shaped structure is clamped on the V-shaped part of the U-shaped clamp spring 3. The risk that the U-shaped clamp spring 3 slides under stress and even falls off can be eliminated.

During assembly, the spring piece 2 is firstly placed on the friction plate 7, the U-shaped clamp spring 3 is then inserted into the clamp spring insertion hole 6 of the caliper 1, and finally the clamp spring buckle 4 is installed and fixed at the V-shaped bending position at the head of the U-shaped clamp spring 3.

When changing new friction disc, it is simple convenient, specifically do: and taking off the clamp spring buckle 4, drawing off the U-shaped clamp spring 3, taking off the spring piece 2, taking out the old friction plate 7, returning the piston by using external force, putting in a new friction plate 7, sequentially putting on the spring piece 2, inserting the U-shaped clamp spring 3 and the clamp spring buckle 4, and finishing replacement.

The above description is only an example of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the present invention is not limited to the above description.

Claims

1. The utility model provides a friction disc and return spring fixed establishment of fixed calliper which characterized in that includes:

the spring piece (2) presses the friction plate (7) in the caliper (1);

the clamp comprises a U-shaped clamp spring (3), clamp spring insertion holes (6) are formed in the middle positions, corresponding to the friction plates (7), of the front side and the rear side of the upper portion of the clamp (1), and the U-shaped clamp spring (3) is inserted into the two clamp spring insertion holes (6) and pressed in the middle of the spring piece (2).

2. A fixing mechanism for friction plate and return spring of fixed caliper according to claim 1, characterized in that said spring plate (2) has a symmetrical wave shape, comprising two wave crests and three wave troughs, corresponding to two return springs and the central groove (9) of the friction plate (7).

3. A fixing mechanism for a friction plate and a return spring of a fixed caliper, as claimed in claim 2, wherein said spring plate (2) is provided with U-shaped notches (13) at both ends of the central trough.

4. A fixing mechanism for a friction plate and a return spring of a fixed caliper according to claim 2 or 3, characterized in that the spring plate (2) is provided with square openings (12) at the middle of two wave crests.

5. A fixing mechanism for friction plate and return spring of fixed caliper according to claim 1, characterized in that the U-shaped clamp spring (3) is a long U-shaped spring, one side is inserted into the clamp spring insertion hole (6) in a straight line, and the other side has an end portion bent inward in a V-shape for clamping the caliper (1).

6. The fixing mechanism for the friction plate and the return spring of the fixed caliper according to claim 5, wherein a snap spring buckle (4) is further disposed at an end of the U-shaped snap spring (3), the snap spring buckle (4) is a 6-shaped structure formed by bending an elastic metal sheet, a circular ring portion of the 6-shaped structure is sleeved on a linear edge of the U-shaped snap spring (3), and a hook-shaped opening of the 6-shaped structure is clamped at a V-shaped portion of the U-shaped snap spring (3).

7. A friction plate and return spring fixing mechanism for fixing a caliper according to claim 5 or 6, characterized in that a U-shaped notch (5) is formed in the caliper (1) at the outer side of the clamp spring insertion hole (6), the U-shaped notch (5) is opened at the upper side and the side, and the clamp spring insertion hole (6) is positioned in the U-shaped notch (5).