一种新型起重机轨道磨损检测方法及误差分析

A NEW METHOD OF DETECTION THE WEAR OF CRANE RAILS AND ITS ERROR ANALYSIS

提出了一种适用于长度为600 m、跨距为60 m、高度为20 m的新型起重机轨道参数检测方法。全站仪在两条轨道的跨距中心和长度中心处建站,两部携带反射靶的轨道检测小车分布在两条轨道上面,全站仪可以通过检测反射靶靶面上固定点的三维坐标实现对双轨的同时检测,全站仪的监检测数据输送到上位机上,然后通过最小二乘法对所测得数据进行数据处理得到轨道相关参数,实际检测结果证明:新型检测方案将检测范围提高一倍,同时避免了不同坐标系之间的转化误差影响,大大提高提高检测结果精度。

A new method of crane rail wear detection is presented, which is suitable for the crane rail with 600 meters long, 60 meters span as well as 20 meters high. The detecting station is established in the two tracks span and length center through electronic total station while two track inspection cars that each carries a reflection target running on the rails. The electronic total station can detect the two tracks at the same time by detecting the 3D coordinates of points fixed on the surface of reflection target and pass the data to PC, then by using the least square method to integrate the acquired data and get the related parameters. The actual detecting results show that the new detection method doubled the detection range, avoided the effect of transforming error between different coordinate systems and greatly improved the accuracy of detection.