The invention provides safety tongs for a multi-car parallel elevator, the safety tongs are installed on a suspension, the suspension is connected with cars, the suspension is provided with two groups of guide limiting wheel sets which are arranged at intervals, the safety tongs comprise a safety tongs seat, a static wedge block, a movable wedge block and a lifting piece, the safety tongs seat is fixedly installed on the suspension, the movable wedge block and the static wedge block are both wedge-shaped, and the lifting piece is connected with the movable wedge block. The inclined faces of the movable wedge block and the static wedge block are matched, the lifting piece is connected with and drives the movable wedge block to move, the movable wedge block moves towards the guide rail to make contact with and press one face of the guide rail or moves away from the guide rail to break away from the guide rail, and the guide limiting wheel set guides the lift car to move along the track of the guide rail and drives the suspension and the movable wedge block to adapt to the changing direction of the guide rail. The single-brake-surface safety tongs are equivalent to only one brake block, braking can be achieved by clamping one surface of a guide rail, when the safety tongs pass through an arc track and act, the brake surface of the safety tongs can make complete contact with the surface of the guide rail, the braking force is balanced, better braking is achieved, and the safety performance is higher.
本发明提供了一种用于多轿厢并行电梯的安全钳,安全钳安装在悬架上,悬架和轿厢连接,悬架上设有两组间隔布置的导向限位轮组,安全钳包括安全钳座、静止楔块、动楔块和提拉件,安全钳座固定安装在悬架上,动楔块和静止楔块均为楔形,动楔块和静止楔块的斜面配合,提拉件连接并带动动楔块移动,动楔块朝着导轨移动至接触和压紧导轨的一面,或者背离导轨移动至脱离导轨,导向限位轮组引导轿厢沿着导轨的轨迹运行,带动悬架和动楔块适应导轨的变化方向。本发明是一种单制动面安全钳,相当于只有一个制动块,通过夹持导轨的一面即可实现制停,通过圆弧轨道时,安全钳动作时其制动面与导轨面可完全接触,制动力均衡,更好的制停,安全性能更高。
Safety tongs for multi-car parallel elevator
一种用于多轿厢并行电梯的安全钳
2022-03-29
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |
Wedge block for elevator safety tongs, preparation method and elevator safety tongs
European Patent Office | 2023
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