T/CI 121-2022 Technical specifications for electrical mechanical braking clamp unit of urban rail transit vehicles

Scope

Main technical content: The electromechanical brake clamp unit shall be manufactured in accordance with this standard and the product drawings and technical specifications approved by the prescribed procedures. The appearance of the electromechanical brake clamp unit shall meet the following requirements: the dimensions shall meet the drawing requirements; there shall be no surface defects, mechanical damage, or deformation; the markings shall be complete and clear. The electrical interface shall meet the drawing requirements. The key casting parts such as the brake clamp lever and brake cylinder body in the electromechanical brake clamp unit shall be inspected for defects, and the casting defects shall not exceed the requirements specified in the drawings and technical specifications. The weight of the electromechanical brake clamp unit shall meet the requirements of the drawings and technical specifications. The tightening torque of all threaded fasteners in the electromechanical brake clamp unit shall be controlled within the range specified in the drawings. The operation of the electromechanical brake clamp unit shall be flexible and free from sticking. The electromechanical brake clamp unit shall have the ability to withstand overload to prevent damage due to a sudden increase in the braking cylinder thrust in case of an emergency. The rated power of the electromechanical brake clamp unit shall not exceed 200W. The protection grade of the electromechanical brake clamp unit shell shall not be lower than the requirements of IP66S (connector IP67) specified in GB/T 4208-2017. The electromechanical brake clamp unit shall have an automatic gap adjustment function to compensate for the gap caused by the wear of the brake pads and brake discs. The maximum effective stroke and relief gap shall meet the requirements of the drawings and technical specifications. The electromechanical brake clamp unit shall have a manual reset function to facilitate the on-site replacemen

Development Information

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