A limitable floating caliper disc brake device

Abstract

The invention discloses a floating caliper disc type brake device capable of being limited. The floating caliper disc type brake device comprises a hydraulic module, a guide bolt, a limiting support, two braking blocks (a first movable braking block and a second movable braking block), a brake disc, a floating caliper body and a floating caliper support. The hydraulic module comprises a control element, an oil way element, a bevel angle sealing ring, a cylinder body and two piston rods (a first double-end piston rod and a second double-end piston rod). The floating caliper body can slide axially along the guide bolt. In the braking process, under the effects of the control element and the oil way element, the two piston rods move synchronously in the opposite directions, the two braking blocks make contact with the brake disc at the same time from the left side and the right side, and therefore stable braking is achieved; when braking is relieved, the two piston rods move synchronously towards each other, and the two braking blocks are away from the braking disc at the same time from the left side and the right side; the limiting support limits the distance between the two braking blocks and the braking disc, and braking time is shortened; the bevel angle sealing ring assists in achieving accurate resetting of the two braking blocks, and the braking disc is prevented from being locked. The brake device is simple in structure and improves the traveling safety of vehicles, and the principle is reliable.

Description

[0001] Technical field [0002] The invention relates to the technical field of an automobile brake device, in particular to a position-limiting floating caliper disc brake device. Background technique [0003] The vehicle brake is an important device for the vehicle braking system to control the deceleration or stop of the moving vehicle or maintain a static state. Dynamic effect, wherein the brake disc refers to a disc-shaped disc that rotates with the wheel. In order to improve the comfort of the vehicle, it is necessary to reduce the vibration to a certain extent during braking. In order to improve the driving safety of the vehicle, it is necessary to control the stroke of the brake block to shorten the braking time, and in order not to affect the normal driving of the car when the brake is released. And to avoid wear between the brake pad and the brake disc, it is necessary to ensure that the brake pad is accurately reset. [0004] At present, the existing patent CN2027...

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Problems solved by technology

[0005] In order to overcome the existing patent CN202790220U application discloses a new type of floating caliper disc brake, through the brake disc, brake caliper body and friction roller group, etc., the hydraulic pressure and reverse hydraulic pressure of the hydraulic system are used to eliminate the belt when braking. However, on the one hand, the simultaneous effect of hydraulic pressure and reverse hydraulic pressure needs to be improved; on the other hand, there is no disclosure of how to limit the stroke of the brake block and how to achieve accurate reset of the brake caliper and self-adjustment of the gap; the patent CN204357990U application discloses a kind of disc brake with floating caliper, the return spring is connected between the piston and the caliper body, when the brake is released, the automatic return function of the piston in the caliper body can be realized by means of the return spring, but a On the one hand, the assembly of the return spring in the piston chamber of the hydraulic system is complicated in structure and difficult to realize; on the other hand, there is no disclosure on how to limit the stroke of the brake block, etc. The present invention provides a floating caliper disc brake device that can limit the position

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