Underneath type platform door moving box driving system

Abstract

The invention discloses an underneath type platform door moving box driving system which comprises a moving box and a driving unit, the moving box is located above a guide platform plate assembly of a platform door, and a guide gap is formed in the guide platform plate assembly in the length direction in a full-length mode; the driving unit is composed of a driving motor, a gear assembly and a rack assembly, the driving motor is located in the moving box and installed on the gear assembly, the gear assembly is installed on a bottom plate of the moving box and penetrates through the guide gap, and a gear of the gear assembly is meshed with a rack of the rack assembly below the guide platform plate assembly. An output shaft of the driving motor extends into the gear assembly to be connected with the gear, the gear is controlled to move along the rack under the guiding effect of the guiding platform plate assembly, and the moving box is driven to move along the whole length of the guiding platform plate assembly. The guide platform plate assembly is more compact in structure, longer in service life and better in operation stability, and meets the safety requirements of passengers on the guide platform plate assembly during station crossing and the functional requirements of any door opening position and ultra-large door opening degree.

Description

technical field [0001] The invention relates to the technical field of rail transit platform doors, in particular to a drive system for a lower-mounted platform door moving box. Background technique [0002] Rail transit stations generally set platform doors at the edge of the platform to isolate the rail area from the waiting area. The purpose is to ensure the normal operation of the train and the safety of passengers, improve the waiting environment, and enhance the comfort of passengers waiting for the train. Most of the existing rail platform doors are fixed platform doors. This type of platform door has a fixed opening position and limited door opening. It is suitable for urban rail such as subway, light rail, or other single-type rail platforms. However, due to various reasons, the platforms of high-speed railways and intercity railways in my country have the need for various types of trains to park on the platforms, and the accuracy of the train parking position is l...

AI Technical Summary

Problems solved by technology

However, the mobile side box only slides on the sill track through the rollers, which requires a large driving force, poor running stability, poor anti-overturning ability, high maintenance frequency, and difficult guide rail construction

[0006] The Chinese patent publication number is CN215475076U, which discloses a platform door and a platform door system. Although it mentions the transmission mode of the rack and pinion, it only plays a role in driving the platform door, with single function, transmission stability and safety. Poor sex

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