A normally closed parking brake

A parking brake and parking brake technology, applied in the direction of brake actuator, gear transmission mechanism, mechanical equipment, etc., can solve the problems of complex control structure and increase the difficulty of space layout of the whole machine.

Active Publication Date: 2017-01-18
HANGZHOU ADVANCE GEARBOX GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the existing technology must use three sets of independent braking systems, the control structure is too complicated, and it also increases the difficulty of the layout of the whole machine space

Method used

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  • A normally closed parking brake
  • A normally closed parking brake
  • A normally closed parking brake

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with accompanying drawing: Figure 1-3 As shown, the normally closed parking brake of the present invention is mainly composed of spring seat cover 4, piston cylinder 6, piston cylinder seat 10, friction plate combination 7, parking brake piston 5, emergency brake piston 8 and driving screw Composed of bevel gear 11, it is characterized in that spring seat cover 4 and piston cylinder seat 10 are respectively fixed at the two ends of the piston cylinder 6, and parking brake piston 5 and emergency brake piston 8 are arranged in the piston cylinder, and the parking brake A friction plate combination 7 is arranged between the moving piston 5 and the emergency braking piston 8;

[0016] Between the spring seat cover 4 and the parking brake piston, multiple sets of compression combination springs are installed, and the spring force of the compression combination springs under normal conditions makes the pa...

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Abstract

A normally closed parking brake mainly consists of a spring seat cover, a piston cylinder, a piston cylinder block, a friction plate combination, a parking braking piston, an emergency braking piston and a driving screw bevel gear. The spring seat cover and the piston cylinder block are respectively fixed at two ends of the piston cylinder, the parking braking piston and the emergency braking piston are disposed in the piston cylinder, and the friction plate combination is disposed in the middle of the piston cylinder. A plurality of compression combined springs are mounted between the spring seat cover and the parking braking piston. The emergency braking piston is mounted on the piston cylinder block via a bolt, an elastic bushing and the compression combined springs, and the other side of the emergency parking piston presses the friction plate combination. The normally closed parking brake has the advantages that parking braking and emergency braking are integrated, safety of downhole mining vehicles can be effectively improved, braking is stable and reliable, occupation space is small and the like.

Description

technical field [0001] The invention relates to a normally closed parking brake, in particular to a normally closed parking brake for underground mining vehicles, belonging to the technical field of vehicle braking. Background technique [0002] For underground mining vehicles, from the perspective of safety, there should be three sets of brake systems: service brake, emergency brake and parking brake, and their operating devices must be independent of each other, and the parking brake device should be mechanically driven. The mechanism cannot be driven by hydraulic pressure or pneumatic pressure, so as to avoid failure. When the hydraulic system loses pressure (the vehicle is parked, the engine of the vehicle fails, the hydraulic pipeline bursts, etc.), the compression spring pushes the piston to compress the friction plate to produce a braking function. Because the prior art must adopt three sets of independent brake systems, the manipulation structure is too complicated,...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): F16D65/16F16D121/04F16D125/10
Inventor于升
OwnerHANGZHOU ADVANCE GEARBOX GRP