论文部分内容阅读
笔者爬上一台G25/15型塔式起重机进行例行检查时,发现起重臂明显呈弧形弯曲,最高点在短拉杆与起重臂连接处。为了排除视觉误差,又爬上相邻塔机进行水平观测,同样证实起重臂已弯曲变形,目测高低相差约20～30cm。安装错误很可能是产生该变形的原因。由图1知,若将长拉杆前连接板(1104mm)与短拉杆前连接板(1151mm)相互错装,则长拉杆比应装长度增如47mm,而短拉杆又
When I climbed a G25 / 15 tower crane for routine inspection, it was found that the boom was obviously curved and the highest point was at the connection point between the short rod and the boom. In order to eliminate visual error, climb up the adjacent tower crane for horizontal observation, also confirmed that the jib has been bent, visual difference between the height of about 20 ~ 30cm. The installation error is probably the cause of the deformation. As can be seen from Figure 1, if the long tie rod front plate (1104mm) and the short tie rod front plate (1151mm) are misplaced with each other, the long tie rod should be 47mm longer than the length of the tie rod and the short tie rod