The invention provides a tower crane over-limit overturn-preventing device. The tower crane over-limit overturn-preventing device comprises a pendant, a base, an amplifying mechanism and a monitoringswitch, wherein the amplifying mechanism and the monitoring switch are arranged on the base, the base is arranged on a tower crane and inclines along with the tower crane, the pendant is connected with the amplifying mechanism, the direction of the pendant is always the same as the gravity direction, relative motion between the base and the pendant is amplified by moving through the amplifying mechanism, the monitoring switch is touched through an executing mechanism in the amplifying mechanism, and overrun early warning is achieved through the monitoring switch. According to the tower crane over-limit overturn-preventing device, the perpendicularity deviation of a tower body is detected by using the relative movement between the base and the pendant, the problem that a moment limiter cannot detect the tower body inclination caused by foundation settlement, bolt looseness and mechanism abrasion is solved, the shortcoming of a traditional moment limiter is overcome, the tower crane over-limit overturn-preventing device can effectively detect the inclination of the upper part and the lower part of the tower crane, so that the inclination of the tower crane can be comprehensively detected.
本发明提供了一种塔吊超限防倾覆装置,包括吊坠、底座和均设置于底座上的放大机构和监测开关,所述底座设置于塔吊上且跟随塔吊一起发生倾斜,所述吊坠与放大机构连接且吊坠始终与重力方向同向,底座与吊坠之间的相对运动通过放大机构进行运动放大,并通过放大机构中的执行机构触碰监测开关,通过监测开关实现超限预警。本发明利用底座与吊坠之间的相对运动进而实现检测塔身的垂直度偏差,解决力矩限制器无法检测由于基础沉降、螺栓松动和机构磨损导致塔身倾斜的问题,弥补了传统力矩限制器存在的短板;通过本发明的塔吊超限防倾覆装置可以有效地检测塔吊上部和塔吊下部发生的倾斜,实现全面的检测塔吊倾斜。
Tower crane over-limit overturn-preventing device
一种塔吊超限防倾覆装置
2020-10-16
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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