Axial metal drum bag type brake structure

By designing an axial metal drum brake structure, utilizing a multi-channel air distribution device and a three-layer composite membrane, ultra-large braking force and stability are achieved in a compact space, solving the problems of insufficient and uncontrollable braking force in existing technologies, and providing wear resistance and safety assurance.

CN224283284UActive Publication Date: 2026-05-26SUZHOU DAWEI MULTI AXIS INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202521790237.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-22
Publication Date
2026-05-26
Estimated Expiration
2035-08-22

AI Technical Summary

Technical Problem

Existing braking devices provide insufficient braking force within a compact axial space and lack a dynamic pressure regulation mechanism, posing risks of uncontrollable response and material fatigue aging.

Method used

An axial metal drum-type brake structure was designed, comprising a brake chamber, an annular brake unit, and an independent elastic deformation unit. A multi-channel air distributor connects a high-pressure air source and a micro-explosion container. The annular brake unit is squeezed by an expandable membrane structure. Combined with a three-layer composite membrane and a metal coating, uniform distribution of braking force and explosive braking are achieved. A piezoelectric micro-flow sensor and a mechanical temperature control valve are provided for real-time control.

Benefits of technology

It provides large and stable braking force within a compact space, is wear-resistant and environmentally adaptable, and has multiple safety protection mechanisms to ensure balanced braking force and safe operation of the system.

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Abstract

The utility model provides an axial metal drum bag type brake structure which comprises a brake chamber and an annular brake unit arranged in the brake chamber, at least three independent elastic deformation units are distributed on the inner wall of the brake chamber, and expandable film layer structures are arranged in the elastic deformation units. During expansion, the periphery, the upper end face and the lower end face of the annular brake unit are extruded at the same time, axial space is fully utilized, uniform distribution and maximization of braking force are achieved, meanwhile, all the elastic deformation units are connected with the multi-channel gas circuit distributor, all the elastic deformation units are instantly driven through the multi-channel gas circuit distributor, explosive braking force is generated, and the braking effect is achieved. The extreme emergency braking requirement is met; the film layer structure is of a three-layer composite structure comprising an inner layer, a middle layer and an outer layer which are sequentially arranged from inside to outside, the braking effect is improved through the three-layer composite structure, further, a metal coating is arranged on the outer layer of the braking unit to optimize the friction characteristic, and the service life of the elastic deformation unit is further prolonged.
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