Pneumatic brake caliper with friction block gap keeping device

Abstract

The utility model relates to a pneumatic brake caliper with a friction block clearance keeping device, which comprises a pneumatic brake caliper body, an inner friction block and an outer friction block are arranged on the pneumatic brake caliper body, the clearance keeping device is arranged on the pneumatic brake caliper body, and the clearance keeping device is arranged between the inner friction block and the outer friction block. The gap keeping device comprises a supporting rod and a keeping spring, the supporting rod is sleeved with the keeping spring, and the two ends of the keeping spring are in contact connection with the inner friction block and the outer friction block respectively. During braking, the inner friction block and the outer friction block compress a spring of the gap maintaining device, and after braking is finished, the gap maintaining device provides return force, so that the set maximum gap is kept between the friction blocks and the brake disc, the friction blocks cannot make contact with the brake disc, and the friction blocks cannot collide with the brake disc and the caliper body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a brake caliper, in particular to a pneumatic brake caliper with friction block gap maintaining device. BACKGROUND

[0002] The existing product has the following defects: the existing pneumatic brake caliper has no gap maintaining function between the inner and outer friction blocks, and there is a free gap of 0-1.2mm between the friction blocks and the brake disc. During the operation of the vehicle, the friction blocks keep moving and contacting the brake disc, which generates friction with the brake disc, produces drag force, increases the resistance of the vehicle movement, increases fuel consumption, and also causes the rotational resistance of the left and right wheels to be different, resulting in direction swing. Moreover, the free movement of the friction blocks will cause collision noise with the brake disc and the caliper body, reducing the customer experience. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a pneumatic brake caliper with friction block gap maintaining device, which maintains the maximum gap between the friction blocks and the brake disc.

[0004] The technical solution for solving the above technical problem is as follows: a pneumatic brake caliper with friction block gap maintaining device, comprising a pneumatic brake caliper body, the pneumatic brake caliper body is provided with inner and outer friction blocks, characterized in that: the pneumatic brake caliper body is provided with a gap maintaining device, the gap maintaining device is arranged between the inner and outer friction blocks, the gap maintaining device comprises a support rod and a retaining spring, the retaining spring is sleeved on the support rod, and the two ends of the retaining spring are respectively connected with the inner and outer friction blocks in contact. The inner and outer friction blocks are separated by the elastic force of the retaining spring.

[0005] The further technical solution of the utility model is as follows: the gap maintaining device further comprises a retaining frame, the middle part of the retaining frame is a spiral ring sleeve structure formed by a spiral, the two ends of the retaining frame are bent to form a hook structure, the spiral ring sleeve structure of the middle part of the retaining frame is sleeved on the retaining spring, and the hook structure of the two ends of the retaining frame is hooked on the support of the pneumatic brake caliper body. The retaining frame facilitates the stable arrangement of the support rod on the pneumatic brake caliper body and prevents the support rod from falling off.

[0006] One end of the support rod is inserted through the back plate of the outer friction block, and the other end is supported on the back plate of the inner friction block. The back plate of the outer friction block is provided with a through hole for the support rod to pass through.

[0007] Due to the adoption of the above technical solution, the pneumatic brake caliper with friction block gap maintaining device has the following beneficial effects:

[0008] The utility model discloses a gap keeping device is equipped on the pneumatic brake caliper body, and the gap keeping device is arranged between the inner friction block and the outer friction block, and the spring of gap keeping device is compressed by the inner and outer friction block when braking, and the return force is provided by the gap keeping device after braking, so that the maximum gap between the friction block and the brake disc is kept, and the brake disc and the caliper body are not contacted and collided, the friction resistance is reduced, the driving stability is improved, the collision noise is eliminated, and the customer experience is improved.

[0009] The technical features of the pneumatic brake caliper with friction block gap keeping device will be further described below in combination with the drawings and specific embodiments of the utility model. DRAWINGS

[0010] Figure 1 The structure diagram of the pneumatic brake caliper with friction block gap keeping device.

[0011] Figure 2 The structure diagram of the gap keeping device.

[0012] In the above drawings, the following numbers are explained as follows:

[0013] 1-keeping spring, 2-keeping frame, 3-supporting rod, 4-outer friction block, 5-inner friction block, 6-brake disc, 7-brake caliper body support. PREFERRED EMBODIMENT

[0014] The utility model discloses a pneumatic brake caliper with friction block gap keeping device, including pneumatic brake caliper body, be equipped with inner friction block and outer friction block on pneumatic brake caliper body, be equipped with gap keeping device on pneumatic brake caliper body, and the gap keeping device is arranged between the inner friction block and the outer friction block, and the gap keeping device includes supporting rod 3 and keeping spring 1, and the keeping spring 1 is covered on supporting rod 3, and the keeping spring is arranged between the inner friction block and the outer friction block, and the both ends are respectively with the inner friction block and the outer friction block contact connection, and the inner friction block and the outer friction block are opened by the elastic force of keeping spring, and the inner and outer friction block keeps the maximum gap. The supporting rod is passed through the through -hole on the backplate of outer friction block and is topped on the backplate of inner friction block.

[0015] The gap keeping device further includes a keeping frame 2, the middle part of the keeping frame 2 is a spiral ring sleeve structure formed by a spiral, the two ends of the keeping frame 2 are bent to form a hook structure, the spiral ring sleeve structure of the middle part of the keeping frame 2 is sleeved on the keeping spring 1, and the hook structure of the two ends of the keeping frame 2 is hooked on the support of the pneumatic brake caliper body. The keeping frame is hooked on the brake caliper support, so that the whole mechanism is fixed on the brake caliper body support. The supporting rod 3 is conveniently and stably arranged on the pneumatic brake caliper body by the keeping frame 2, and is not easy to fall off.

Claims

1. A pneumatic brake caliper with a friction block gap maintaining device, comprising a pneumatic brake caliper body, an inner friction block and an outer friction block are arranged on the pneumatic brake caliper body, characterized in that: The gap maintaining device is arranged between the inner friction block and the outer friction block, and comprises a supporting rod and a maintaining spring.

2. A pneumatic brake caliper with a friction block gap maintaining device according to claim 1, characterized in that: The gap maintaining device further comprises a holder, the middle part of the holder is a spiral ring structure, the two ends of the holder are bent to form hook structures, the spiral ring structure of the middle part of the holder is sleeved on the maintaining spring, and the hook structures of the two ends of the holder are hooked on the support of the pneumatic brake caliper body.

3. A pneumatic brake caliper with a friction block gap maintaining device according to claim 1, characterized in that: One end of the supporting rod is penetrated on the back plate of the outer friction block, and the other end is abutted on the back plate of the inner friction block.

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