CN204186849U

CN204186849U - Air-pressure disc brake automatic resetting device

Info

Publication number: CN204186849U
Application number: CN201420665802.XU
Authority: CN
Inventors: 钟思平; 曾文高
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-11-10
Filing date: 2014-11-10
Publication date: 2015-03-04
Anticipated expiration: 2024-11-10

Abstract

The utility model discloses a kind of air-pressure disc brake automatic resetting device, comprise the spring or shell fragment or elastic layering that realize self-return, pressing plate, blind hole is respectively arranged with at the two ends of the friction plate of break, the two ends of spring or shell fragment or elastic layering are across in the blind hole inserted on the friction plate of both sides, described spring or shell fragment or elastic layering are made up of kink and insert head, the insert head of spring or shell fragment or elastic layering one end is inserted in the blind hole on the friction plate of side, the insert head of the other end is inserted in the blind hole on opposite side friction plate, kink is crimped on friction plate pressing plate by pressing plate.The utility model air-pressure disc brake automatic resetting device has that structure is simple, cost is low, effectively realize that friction plate is separated with brake disc rapidly, the surface friction drag of brake off dish, reduce the advantages such as vehicle travel resistance.

Description

Air-pressure disc brake automatic resetting device

Technical field

The utility model relates to break, specifically refers to a kind of air-pressure disc brake automatic resetting device.

Background technique

Air-pressure disc brake has the advantages such as structure is simple, rapid heat dissipation, popularize just gradually in, large-scale visitor, on lorry, but disk type braker does not all have self-return function at present, namely after loosening the brake, friction plate can not self-return, makes break fail complete brake off, vehicle travel resistance is caused to increase, increase vehicle and travel energy consumption, accelerate the wearing and tearing of friction plate, brake disc, increase maintenance cost.Therefore, how to make friction plate self-return, it is very necessary for making break can realize complete brake off.

Model utility content

The purpose of this utility model is to provide that a kind of structure is simple, cost is low, effectively realize that friction plate is separated with brake disc rapidly, the surface friction drag of brake off dish, reduce the air-pressure disc brake automatic resetting device of vehicle travel resistance.

The utility model can be achieved through the following technical solutions:

A kind of air-pressure disc brake automatic resetting device, comprise the spring or shell fragment or elastic layering that realize self-return, pressing plate, blind hole is respectively arranged with at the two ends of the friction plate of break, the two ends of spring or shell fragment or elastic layering are across in the blind hole inserted on the friction plate of both sides, described spring or shell fragment or elastic layering are made up of kink and insert head, the insert head of spring or shell fragment or elastic layering one end is inserted in the blind hole on the friction plate of side, the insert head of the other end is inserted in the blind hole on opposite side friction plate, kink is crimped on friction plate pressing plate by pressing plate.

Improvement as such scheme: increase described spring or shell fragment or elastic layering on the basis of Primordial Qi pressure type break, two springs or shell fragment or elastic layering are installed to after on break, and two ends insert head produces elastic force separated from one another.For meeting different elastic force requirements, the kink of described spring or shell fragment or elastic layering forms one or more bending.

Further improvement as such scheme: the kink of described spring or shell fragment or elastic layering is U-shaped.

Further improvement as such scheme: increase by two blind holes on the basis of former friction plate, and blind hole position should be less than the distance of friction plate inner sensor and external boundary from the ultimate range of friction plate external boundary.

As preferred version of the present utility model: the two ends of the friction plate of described break arrange a blind hole respectively, the two ends of two springs or shell fragment or elastic layering are respectively across in the blind hole inserted on the friction plate of both sides, the crooked place of the kink of two springs or shell fragment or elastic layering is in the both sides of the edge of friction plate pressing plate, and pressing plate to be arranged on friction plate pressing plate and to be placed in above the bending position of kink.

Compared with prior art, the utility model air-pressure disc brake automatic resetting device has following useful product fruit:

1, structure is simple, cost is low, easily installs additional;

2, brake structural and performance is not changed;

3, break outward appearance is not affected;

4, reduce vehicle travel resistance, improve power performance, improve vehicle economy;

5, reduce the wearing and tearing of friction plate and brake disc, reduce vehicle working service cost;

6, avoid friction plate and brake disc Long Term Contact frictional heating, affect Braking efficiency.

Accompanying drawing explanation

Accompanying drawing 1 is the spring of the utility model air-pressure disc brake automatic resetting device or shell fragment or elastic layering perspective view;

Accompanying drawing 2 is the side view of Fig. 1;

Accompanying drawing 3 is the structural representation of the friction plate of the utility model air-pressure disc brake automatic resetting device;

Accompanying drawing 4 is the plan structure schematic diagram after the friction plate of the utility model air-pressure disc brake automatic resetting device and spring or shell fragment or elastic layering assemble;

Accompanying drawing 5 is the perspective view after the friction plate of the utility model air-pressure disc brake automatic resetting device and spring or shell fragment or elastic layering assemble

Accompanying drawing 6 is the structural representation being applied in air-pressure disc brake of the utility model air-pressure disc brake automatic resetting device;

Reference character is: 1, push rod, 2, brake disc, 3, device support processed, 4, floating clamp, 5, spring or shell fragment or elastic layering, 6, pressing plate, 7, friction plate pressing plate, 8, blind hole, 9, friction plate, 51, kink, 52, insert head.

Embodiment

In order to make those skilled in the art person understand the technical solution of the utility model better, below in conjunction with embodiment and accompanying drawing, the utility model product is described in further detail.

As shown in figs. 1 to 6, a kind of air-pressure disc brake automatic resetting device, comprise the spring or shell fragment or elastic layering 5, pressing plate 6 that realize self-return, at the two ends of the friction plate 9 of break, a blind hole 8 is set respectively, described spring or shell fragment or elastic layering 5 are made up of kink 51 and insert head 52, the two ends of two springs or shell fragment or elastic layering 5 are respectively across in the blind hole 8 inserted on the friction plate of both sides, the crooked place of kink 51 is on friction plate pressing plate, and pressing plate 6 to be arranged on friction plate pressing plate and to be placed in above the bending position of kink 51.The kink 51 of described spring or shell fragment or elastic layering 5 is U-shaped.

The utility model air-pressure disc brake automatic resetting device is respectively arranged with one or more blind hole 8 at the two ends of the friction plate 9 of break, the two ends of many groups spring or shell fragment or elastic layering 5 are across in the blind hole 8 inserted on the friction plate 9 of both sides, described spring or shell fragment or elastic layering 5 are made up of kink 51 and insert head 52, the insert head 52 of spring or shell fragment or elastic layering 5 one end is inserted in the blind hole 8 on the friction plate of side, the insert head 52 of the other end is inserted in the blind hole 8 on opposite side friction plate, kink 51 is crimped on friction plate pressing plate by pressing plate 6.

As required, the kink 51 of described spring or shell fragment or elastic layering 5 forms one or more bending.

Play maximum effect to make spring or shell fragment or elastic layering 5 and do not affect the normal use of friction plate 9, blind hole position should be less than the distance of friction plate 9 inner sensor and external boundary from the ultimate range of friction plate 9 external boundary.

In conjunction with the parameter of concrete case, make a concrete analysis of feature of the present utility model:

1. the spring of special shape is processed, spring or shell fragment or elastic layering 5 are made up of kink 51 and insert head 52, spring diameter is 4.5mm, two insert head 52 under shed distances are 105mm, upper shed distance is 97mm, upper and lower opening range difference produces elastic force after spring or shell fragment or elastic layering 5 can be made to load friction plate 9 and concentrates in the middle of friction plate 9, and friction plate 9 bearing up-down force is balanced, and shape as shown in Figure 1 and Figure 2;

2. the structure of friction plate as shown in Figure 3, friction plate is processed the blind hole of two ultimate range φ 5.5 × 40mm, friction plate 9 iron plate is exposed top and is processed to form an arc notch, this center, hole and friction plate 9 external boundary ultimate range must be less than friction plate 9 inner sensor and external boundary distance, as shown in Figure 3.The position of blind hole 8 can adjust accordingly position dimension according to various break model; ;

3. on the basis of Primordial Qi press disc type brake, increase by two 1. spring described in step or shell fragment or elastic layerings 5, spring or shell fragment or elastic layering 5 two to be inserted respectively in two pieces of friction plates 9 2. blind hole 8 described in step, (signal being installed as shown in Figure 4, Figure 5);

4. install pressing plate 6, as shown in Figure 6, in figure: 1 is push rod, 2 is brake disc, and 3 is device support processed, and 4 is floating clamp, and 7 is friction plate pressing plate.

The utility model air-pressure disc brake automatic resetting device working principle: two of two springs or shell fragment or elastic layering 5 is installed on two pieces of friction plates all respectively, provides elastic force separated from one another to two pieces of friction plates 9.When the driver releases the brake pedal, the push rod self-return of break, relieves the thrust to friction plate 9.In return process, because pad and inner attrition piece 9 are greater than the pressure of outside friction disc by arc spring by the pressure of arc spring, pad and the inner attrition piece return when being subject to spring force effect, and producing larger surface friction drag, spring produces reaction force and pushes outside friction disc open with floating embedding when promoting inboard friction sheet simultaneously.Now, two pieces of friction plates are under the elastic force effect of this spring, and away from each other, namely two friction plates separate with brake disc, realize braking and remove completely.

The utility model air-pressure disc brake automatic resetting device feasibility in actual applications:

1. when new friction plate, brand-new Moving plate, single spring or shell fragment or elastic layering after installing initial pretightening force be 46N, along with the wearing and tearing of friction plate and brake disc, spring or shell fragment or elastic layering elastic force constantly increase, when friction plate and brake disc wear are to tolerance limit, the elastic force of single spring or shell fragment or elastic layering reaches maximum 170N.The maximum Brake Design pressure of 19.5 cun of breaks is 13000N, and therefore the braking force impact of elastic force on break of this spring or shell fragment or elastic layering is small.

2. install actual measurement: after loosening the brake, break is before mounting spring or shell fragment or elastic layering, and measuring disc rotation with weight beam needs 48N; After spring or shell fragment or elastic layering are installed, rolling brake dish needs 8.2N; After removing brake bush, rolling brake dish needs 8.2N; Therefore, add the brake disc rotational resistance that shock mount or shell fragment or elastic layering can realize break to remove completely.

The above, be only preferred embodiment of the present utility model, not does any pro forma restriction to the utility model; The those of ordinary skill of all industry all can shown in by specification accompanying drawing and the above and implement the utility model swimmingly; But all those skilled in the art are not departing within the scope of technical solutions of the utility model, disclosed above technology contents can be utilized and make a little change, modify with differentiation equivalent variations, be Equivalent embodiments of the present utility model; Meanwhile, all according to substantial technological of the present utility model to the change of any equivalent variations that above embodiment does, modify and differentiation etc., within the protection domain all still belonging to the technical solution of the utility model.

Claims

1. an air-pressure disc brake automatic resetting device, it is characterized in that: comprise the spring or shell fragment or elastic layering (5) that realize self-return, pressing plate (6), blind hole (8) is respectively arranged with at the two ends of the friction plate of break, described spring or shell fragment or elastic layering (5) are made up of kink (51) and insert head (52), the two ends of spring or shell fragment or elastic layering (5) are across in the blind hole (8) inserted on the friction plate of both sides, the insert head (52) of spring or shell fragment or elastic layering (5) one end is inserted in the blind hole (8) on the friction plate of side, the insert head (52) of the other end is inserted in the blind hole (8) on opposite side friction plate, kink (51) is crimped on friction plate pressing plate by pressing plate (6).

2. air-pressure disc brake automatic resetting device according to claim 1, is characterized in that: the kink (51) of described spring or shell fragment or elastic layering (5) forms one or more bending.

3. air-pressure disc brake automatic resetting device according to claim 2, is characterized in that: the kink (51) of described spring or shell fragment or elastic layering (5) is U-shaped.

4. the air-pressure disc brake automatic resetting device according to any one of claims 1 to 3 claim, is characterized in that: described blind hole center and the maximum distance of friction plate external boundary must be less than friction plate inner sensor and external boundary distance.

5. air-pressure disc brake automatic resetting device according to claim 4, it is characterized in that: the two ends of the friction plate of described break arrange a blind hole (8) respectively, the two ends of two springs or shell fragment or elastic layering (5) are respectively across in the blind hole (8) inserted on the friction plate of both sides, the crooked place of kink (51) is on friction plate pressing plate, and pressing plate (6) to be arranged on friction plate pressing plate and to be placed in above the bending position of kink (51).