摘要
机械式卡紧装置通过楔块的锁紧作用实现卡紧装置与轨道的抱紧,从而为液压顶推设备提供推力作用点,其无需竖向液压缸提供卡紧压力,具有结构简单、使用方便的优点。研究了机械式卡紧装置中楔块的斜面倾角,上楔块、下楔块、壳体、钢轨间的压力和摩擦系数,以及他们对推力的影响,并得出结论:在推力一定的前提下,为降低楔块及壳体受力,应适当提高上、下楔块间及壳体与钢轨间的摩擦系数以及楔块的斜面倾角,为机械式卡紧装置的设计和优化提供了依据。
The mechanical clamping device achieves enclasping of clamping device and the track via locking effect by the wedge,so as to provide thrust action point for hydraulic equipment,and the device requires no clamping pressure by vertical hydraulic cylinder,and has advantages such as simple structure,easy use.The paper studies the slope angle of wedge for mechanical clamping device,the pressure,and the friction coefficients between upper and lower wedges,and the housing and the rail,as well as their impact on the thrust,giving conclusions： the friction coefficients between the upper and lower wedges,and the housing and the rail,and the slope angle of wedges shall be increased in order to reduce the force on the wedge and housing in case of constant thrust.It provides the mechanical clamping device with design and optimization basis.
出处
《起重运输机械》
2011年第11期29-32,共4页
Hoisting and Conveying Machinery
关键词
液压顶推设备
机械式卡紧装置
楔块
hydraulic push equipment
mechanical clamping device
wedge
