Drum brake with emergency braking structure
A technology of emergency braking and brake drum, applied in the direction of brake components, brake types, hydraulic drum brakes, etc., to achieve precise timing, avoid braking formation and braking result lag, and ensure safe use
Active Publication Date: 2020-12-15
扬州智高能源科技有限公司
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Problems solved by technology
[0004] Aiming at the shortcomings of the existing drum brakes proposed in the background technology during use, the present invention provides a drum brake with an emergency braking structure, which has the advantage of meeting the cooling requirements of the brake drum under emergency braking. Solved the problems raised in the above-mentioned background technology
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0021] see Figure 1-6 , a drum brake with an emergency braking structure, including a brake chassis 1, the brake chassis 1 is movably socketed on the wheel shaft 11, the front bottom of the brake chassis 1 is fixedly installed with a support 2, and the front of the support 2 Brake shoes 3 are hinged on both sides, and friction discs 4 are fixedly installed on the outside of brake shoes 3. The bottoms of the two brake shoes 3 are fixedly engaged with the two e...
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The invention relates to the technical field of automobile brake devices, and discloses a drum brake with an emergency braking structure. The drum brake comprises a brake chassis, a limiting connecting plate, a limiting pin and a brake drum, wherein a water sprayer is fixedly arranged on the back side of the brake chassis, a water nozzle of the water sprayer is aligned with the outer side surfaceof a brake drum, the water sprayer sprays cooling water to the outer side surface of the brake drum under emergency braking of an automobile, a water nozzle valve of the water sprayer is controlled tobe opened and closed by an automobile brake system, the automobile brake system control opening and closing comprises a time period for detecting that a brake pedal reaches the maximum stroke and a comprising preset time based on the time period, the time period is lower than the preset time, the automobile brake system controls the water nozzle valve of the water sprayer to act, otherwise, the automobile brake system does not act. According to the drum brake, the water sprayer is arranged, the automobile brake system is used for controlling the water sprayer to spray cooling water to the brake drum under the emergency brake condition of the automobile, so that the requirement of the brake drum of the drum brake under emergency braking of the automobile for heat dissipation is met, and the use safety of the brake drum is guaranteed.
Description
technical field [0001] The invention relates to the technical field of automobile braking devices, in particular to a drum brake with an emergency braking structure. Background technique [0002] Such as figure 1 As shown, the drum brake generally consists of a brake chassis 1, a support 2, a brake shoe 3, a friction plate 4, a return spring 5, a return spring 6, a brake wheel cylinder 7, a limit connecting plate 8, a limit connecting Composed of rod 9, limit pin 10 and brake drum 16, oil is pumped into the brake wheel cylinder 7 after stepping on the brake pedal, and the two pistons in the brake wheel cylinder 7 stretch the brake shoes 3 on both sides , so that the friction plate 4 rubs against the brake drum 16 to produce a braking effect, the pedal is released, and the brake shoe 3 returns to its original position under the pulling force of the return spring 5 and the return spring 6 . Drum brakes are widely used in the rear wheels of small cars and heavy trucks because...
Claims
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IPC IPC(8): F16D51/24F16D65/827
CPCF16D51/24F16D65/827
Inventor 袁加林
Owner 扬州智高能源科技有限公司