The invention discloses a whole-course steel wire rope type tower crane counterweight falling triggering device. Belongs to the technical field of machinery and comprises an arm support, a tower body, a multiplying power amplification device (a multiplying power wheel set A and a multiplying power wheel set B), a steel wire rope, a pulley, a dismountable counterweight, a counterweight bracket and a limiting device. The multiplying power wheel set A is arranged on the arm support, the multiplying power wheel set B is arranged on the tower body, and a steel wire rope penetrates through the multiplying power wheel set A and the multiplying power wheel set B; rollers are distributed on the counterweight bracket, and during normal work, the limiting device does not act, and the counterweight bracket can be fixed on the arm frame; when the tower crane is unloaded suddenly, the limiting device acts, and the balance weight bracket can slide on the arm frame. When the super-tonnage tower crane has sudden unloading working conditions such as rope breakage and lifting point disengagement, the lifting arm is lifted, the lifting stroke of the arm support is amplified through the multiplying power amplification device, the balance weight bracket is separated from the balance weight through traction of the steel wire rope, then the balance weight falls off in time, and the operation safety performance of the super-tonnage tower crane is improved.
本发明公开了一种全程钢丝绳式塔机平衡重脱落触发装置。属于机械技术领域,包括臂架、塔身、倍率放大装置(倍率轮组A及倍率轮组B)、钢丝绳、滑轮、可脱落式平衡重、平衡重托架和限位装置;倍率轮组A布置在臂架上,倍率轮组B布置在塔身上,两者之间穿有钢丝绳;平衡重托架上布有滚轮,正常工作时,限位装置不动作,平衡重托架可在臂架上固定不动;塔机突然卸载时,限位装置动作,平衡重托架可在臂架上滑动。针对超大吨位塔式起重机出现断绳、吊点脱离等突然卸载工况时,起重臂上扬,通过倍率放大装置放大臂架上扬行程,利用钢丝绳牵拉使平衡重托架与平衡重分离,进而使平衡重及时脱落,提高超大吨位塔式起重机作业安全性能。
Whole-course steel wire rope type tower crane counterweight falling trigger device
全程钢丝绳式塔机平衡重脱落触发装置
2023-08-15
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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