摘要
Abstract
The track braking device is one of the key components in the beam conveying equipment.During the bridge construction,the author found that the existing braking device has poor braking effect at the junction of track segments and is easy to get stuck when passing.Therefore,in this paper,a two-stage multi-wedge flexible braking device driven by servo electric cylinder is proposed.According to the actual situation,the author analyzed the force on the wedge,calculated the force expansion ratio of the wedge,and confirmed the relationship between self-locking and wedge angle.After consideration,the wedge angle was set to 11,and then based on the braking force of 130 kN,it was calculated that the thrust of the servo electric cylinder should at least reach 25.67 kN.The transient structure of single-stage braking device was simulated by Ansys software,and the working process of the device was simulated by five steps.The results show that the single-stage braking device can ensure the braking force of at least 130 kN when the thrust of the servo electric cylinder is 30 kN,and the overall stress and deformation meet relevant design requirements.Using Solidworks software,the motion simulation of two kinds of braking devices under three different working conditions was carried out.The results show that the multi-wedge flexible braking device is obviously better than the original braking device in working conditions 2 and 3.关键词
运梁机/轨道制动装置/楔块/结构仿真/设计Key words
beam conveyor/track braking device/wedge/structural simulation/design分类
机械制造
