清筛机起拨道装置参数优化试验研究

针对既有隧道内、桥梁上道床机械化清筛难题,以清筛机起拨道装置为研究对象,通过数值模拟和现场试验,对起拨道量与起拨道力的关系进行了分析。结果表明:拨道时起拨道装置影响范围为7根轨枕距离;随着起道量增加起道力呈增大趋势,随着拨道量增加拨道力呈增大趋势,起道量与拨道力成反比关系;既有大型养路机械起拨道装置的起拨道油缸参数满足新型隧道桥梁清筛机使用要求;起拨道装置的安装位置直接影响新型隧道桥梁清筛机的作业适用范围。研究结果可为新型隧道桥梁清筛机的设计提供依据。

Experimental Study on Parameter Optimization of Track Lifting and Lining Unit of Ballast Cleaning Machine

In view of the mechanized cleaning problem of ballast bed in existing tunnels and bridges,the relationship between the capacity of track lifting and lining and the force of track lifting and lining was analyzed through numerical simulation and field test by taking the track lifting and lining unit of ballast cleaning machine as the research object.The results show that the influence range of track lifting and lining unit during track lining is the distance of 7 sleepers,the lifting force tends to increase with the increase of lifting capacity,the lining force tends to increase with the increase of lining capacity,the lifting capacity is inversely proportional to the lining force,the parameters of the oil cylinder of the track lifting and lining unit of the existing large-scale road maintenance machinery could meet the use requirements of the new type of ballast cleaning machine for tunnel and bridge,and the installation position of the track lifting and lining unit directly affects the application scope of the new type of ballast cleaning machine for tunnel and bridge.The research results can provide an basis for the design of a new type of ballast cleaning machine for tunnel and bridge.