无极绳连续牵引车新型防脱压绳轮装置设计

Design of New Anti-detachment Pressure Rope Wheel Device for Continuous Traction Car With Endless Rope

对现有的防脱绳压绳轮装置进行力学分析,确定了传统结构在牵引大负载时需要加大拉簧的弹力,而且当牵引车通过防脱绳装置时,传统结构容易产生巨大的冲击,同时,大的牵引力持续作用在拉簧上也加速了拉簧的损坏。针对上述问题,设计了一种新型的防脱绳压绳轮装置,包括可带动两个压绳轮同步转动的旋转臂,该旋转臂可在一个方向上实现两个压绳轮之间的闭合和打开,且仅需要一个小拉簧就能实现压绳轮的复位,从而减小拉簧的受力,而且当梭子通过两个压绳轮时,两个压绳轮张开幅度较小,从而有效地防止钢丝绳在运行中脱绳。最后,经过将两种结构进行现场试验验证,确定新型防脱绳压绳轮装置可承受最大拉力以及平稳性明显大于传统结构。

A mechanical analysis of the traditional anti-rope-off rope pressing wheel device is conducted,and it is determined that the traditional structure needs to increase the elastic force of the connecting tension spring when pulling a large load.Moreover,when the traction vehicle passes through the anti-rope-off device,the traditional structure is prone to huge impacts.At the same time,when a large traction force continues to act on the tension spring,it also accelerates the damage of the tension spring.In response to these problems,a new type of anti-rope-off rope pressing wheel device is designed,which includes a rotating arm that can drive two rope pressing wheels to rotate synchronously.The rotating arm can close and open between the two rope pressing wheels in one direction and only needs a small spring to reset the rope pressing wheel,thereby reducing the force on the spring.Moreover,when the shuttle passes through the two rope pressing wheels,the opening amplitude of the two rope pressing wheels is small,which effectively prevents the steel wire rope from slipping off during operation.Finally,after conducting field tests on the two structures,it is determined that the maximum tensile force and stationaritythat can be withstood by the new anti-rope-off rope pressing wheel device is significantly greater than that of the traditional structure.