新型间歇式预张拉机钢丝绳抱紧装置设计

针对原有间歇式预张拉机钢丝绳两端抱紧装置压紧力小、人工操作劳动强度大、生产效率低等问题,设计新型间歇式预张拉机钢丝绳抱紧装置。采用电气配合液压传动方式,使抱紧装置压紧臂的各种动作实现自动化;根据钢丝绳规格结构、直径大小及所需的预张拉力,利用杠杆原理计算出最大抱紧力,从而确定抱紧装置的整体结构。实践结果表明:新型间歇式预张拉机钢丝绳抱紧装置结构紧凑简单,操作方便,生产效率高;压紧臂往复动作平稳,消除了人工操作由于压紧臂较大的冲击力对钢丝绳造成的损伤;减少故障停机率,维修成本大幅度降低。

Design of holding device for new type intermittent pretensioning machine wire rope

Aiming at the small pressing force of two terminal holding device, high labor intensity of manual operation, low production efficiency of original new type intermittent pretensioning machine wire rope, design a new type intermittent pre- tensioning machine wire rope. Through the adoption of electric and cooperate with hydraulic transmission, make all kinds of motions of holding device pressing arm realize automation;according to the specifications, structure, diameter size and re- quired prestressing force, use lever principle to calculate the maximum holding force, thus confirming overall structure of the holding device. The practice result shows ： holding device of new type intermittent pretensioning machine wire rope has compact and simple structure, convenient operation and high effiency; the reciprocating motion of pressing arm is stable, e- liminate the manual operation damage to wire rope that caused by great impact force of pressing arm; reduce breakdown fre- quency, maintenance cost decreases greatly.