CN200961650Y

CN200961650Y - Integral caliper type floating caliper type pneumatic brake

Info

Publication number: CN200961650Y
Application number: CN 200620099778
Authority: CN
Inventors: 童幸源; 江吉云; 谢忠明; 罗方
Original assignee: Yuanfeng Autocar Parts Co Ltd Wuhan
Current assignee: Yuanfeng Autocar Parts Co Ltd Wuhan
Priority date: 2006-11-06
Filing date: 2006-11-06
Publication date: 2007-10-17
Anticipated expiration: 2016-11-06

Abstract

The utility model discloses an integral caliper floating caliper-typed pneumatic brake, relating to a brake applicable to the medium and heavy-duty commercial vehicle. The utility model comprises a pressure arm component (20), a roller shaft component (30), a return spring (4) and a caliper (10) and a bottom cover (50); the pressure arm component (20) applies to the roller shaft component (30) through the circular face, wherein the roller shaft component (30) is connected with the bottom cover (50) through the shaft hole. The return spring (40) is in the engaging central shaft hole of the roller shaft component (30) and the bottom cover (50). The bottom cover (50) is connected with the caliper (10) by the connecting bolt, wherein the caliper (10) and the bottom cover (50) are both integral casting iron mechanism symmetrical left and right. The utility model can significantly lowers the weight of the brake assembly, improve the brake assembly applicability, provide larger brake torque and broaden the application of the disk pneumatic brake.

Description

Integral caliper body floating tong type pneumatic brake

Technical field

The utility model relates in a kind of being applicable to, the break of heavy type commercial vehicle, relates in particular to a kind of integral caliper body floating tong type pneumatic brake.

Background technique

Air-pressure disc brake rapid heat dissipation, in light weight, simple structure, wearing clearance are adjusted automatically; Particularly resistance to high temperature is good, and braking effect is stable, can significantly reduce stopping distance, for vehicle provides reliable traffic safety guarantee.Simultaneously, air-pressure disc brake can also reduce brake noise, efficiently solves the noise pollution that the city bus braking causes.At present, air-pressure disc brake has begun mass production applications in China, and Yuanfeng Automobile Parts Co., Ltd., Wuhan is domestic unique producer that air-pressure disc brake (seeing utility model patent ZL 01 2 12585.7) can be provided in batches.From the investigation result of using in batches, homemade air-pressure disc brake ubiquity is short working life, defectives such as rate of fault height.It is because the caliper body water inlet causes more than 80% that personnel's reflection after sale, homemade air-pressure disc brake were lost efficacy; Therefore, improve the caliper body sealability and will become the matter of utmost importance that improves homemade air-pressure disc brake quality.

Summary of the invention

The utility model relates to purpose and just is to overcome the problems referred to above and the deficiency that prior art exists, and a kind of integral caliper body floating tong type pneumatic brake is provided.

The purpose of this utility model is achieved in that

Release the integral caliper body, cancellation break loam cake, sealing station are transferred to and bear pressure and the less caliper body bottom of strain, thereby improve the break overall tightness, prolong the break life-span, reduce rate of fault.

As Fig. 1, the utility model comprises existing pressure arm assembly 20, rotating assembly 30, return spring 40; Also comprise caliper body 10 and bottom 50;

Its position and annexation are: pressure arm assembly 20 is fitted by arc surface with rotating assembly 30, and rotating assembly 30 cooperates by axis hole and is connected with bottom 50, and return spring 40 is in rotating assembly 30 and bottom 50 cooperates in the central shaft hole; Bottom 50 is connected with caliper body 10 by connecting bolt.

Rotating assembly 30 and pressure arm assembly 20 are pressed in the clamp 10 behind the caliper body 10 of packing into owing to the effect of return spring 40, thereby guarantee rigging position.

Working principle of the present utility model is:

During braking, the air chamber push rod promotes the ball-and-socket of pressure arm assembly 20, under air chamber push rod impetus, and pressure arm assembly 10 rotation reinforcements and output braking displacement.Braking force behind the reinforcement and retarder location Mobile Communication cross rotating assembly 30 and pass, and form braking.

End of braking, the air chamber push rod unclamps, and return spring 40 promotes rotating assembly 30, and rotating assembly 30 passes to return spring 40 thrusts by pressure arm assembly 20, and initial position is got back in 20 rotations of pressure arm assembly.

This shows, under the prerequisite that does not influence 30 assemblings of brake pressure arm component 20 and rotating assembly, change pack into the mode of caliper body 10 of above-mentioned clearance self-regulating mechanism, promptly pack into from the shelves of opening of caliper body 10.Because the break loam cake that cancellation is traditional adopts bottom 50 to seal, and acts on loam cake thereby avoid braking counter-force, improves the sealability between loam cake and the caliper body 10; Because bottom 50 only bears the returning place force of return spring 40, strain is very little, thereby reduces the pressure of seal protection.

The utlity model has following advantage and good effect:

1, sealing station is transferred to the bottom of caliper body 10, and caliper body 10 inside cavity seal durability are greatly improved;

2, cancel the loam cake of traditional braking device, adopted bottom 50 to substitute; Cancel the connecting bolt of loam cake and caliper body 10, not only made overall construction intensity good, and reduced the weight of brake assembly.

3, cancelled the position in caliper body 1 connecting bolt hole, made the fitted position of clamp head 11 be better than improving preceding break;

In a word, the utility model can significantly reduce the weight of brake assembly, promotes break assembly environment adaptability, and bigger braking moment is provided, and effectively enlarges the application area of disc type pneumatic brake.

Description of drawings

Fig. 1-the utility model assembly structure chart (analysing and observe);

Fig. 2-integral caliper body structure figure;

Fig. 3-bottom cover structure figure.

Wherein:

The 10-caliper body,

11-clamp head, 12-props up earhole, and the 13-clamp are opened shelves, 14-clamp bottom;

20-pressure arm assembly;

The 30-rotating assembly;

The 40-return spring;

The 50-bottom,

The 51-bolt connecting hole, 52-seal closure hole, 53-seal groove.

Embodiment

Describe in detail below in conjunction with drawings and Examples:

1, caliper body 1

As Fig. 2, described caliper body 1 is a kind of all-in-one-piece symmetrical cast iron structural member, opens shelves 13 and clamp bottom 14 is formed by earhole 12, clamp head 11, clamp.

Caliper body head 11 bears the braking counter-force, and head cavity provides assembly space for other functor, avoids water and dust to enter cavity corrosion pressure arm assembly 20 and rotating assembly 30; Clamp are opened shelves 13 and are mainly born tensile force, and the assembly space of general part brake disc, friction plate is provided; Clamp bottom 14 main support friction plates.

The characteristics of caliper body 1 and advantage:

1. caliper body 1 sealing station is arranged on strain and all smaller place of pressure, reduces sealing load;

2. cancelled the connecting bolt on the caliper body 1, overall construction intensity is got a promotion;

3. reduced brake assembly weight.

2, bottom 5

As Fig. 3, described bottom 5 is a kind of all-in-one-piece symmetrical cast iron structural members, mainly is made up of bolt connecting hole 51, seal closure hole 52 and seal groove 53.

Bottom 5 seals by the sealer in the seal groove 53 with caliper body 1.

Bottom 5 mainly is the returning place force that bears return spring 4.

3, other existing parts

Described pressure arm assembly 2 is cam mechanisms, can form reinforcement and output displacement by rotation.

Described rotating assembly 3 is overrunning clutchs, and the part can unidirectional delivery rotate, and integral body can be transmitted braking force and braking displacement.

Described return spring 4 is cylindrically coiled springs, and the returning place force after rotating assembly 3 is braked is provided.

Claims

1, a kind of integral caliper body floating tong type pneumatic brake comprises existing pressure arm assembly (20), rotating assembly (30), return spring (40);

It is characterized in that: also comprise caliper body (10) and bottom (50);

Pressure arm assembly (20) is fitted by arc surface with rotating assembly (30), and rotating assembly (30) cooperates by axis hole and is connected with bottom (50), and return spring (40) is in rotating assembly (30) and bottom (50) cooperates in the central shaft hole; Bottom (50) is connected with caliper body (10) by connecting bolt.

2, by the described integral caliper body of claim 1 floating tong type pneumatic brake, it is characterized in that:

Caliper body (10) is a kind of all-in-one-piece symmetrical cast iron structural member, opens bottom shelves (13) and the clamp (14) by earhole (12), clamp head (11), clamp and forms.

3, by the described integral caliper body of claim 1 floating tong type pneumatic brake, it is characterized in that:

Bottom (50) is a kind of all-in-one-piece symmetrical cast iron structural member, mainly is made up of bolt connecting hole (51), seal closure hole (52) and seal groove (53).