The invention discloses a tower ceiling section power-off protection device and a protection method, and belongs to the field of engineering machinery. When a lifting oil cylinder on a top section jacks up the top section to cut off power, hydraulic oil in the lifting oil cylinder is controlled by a pressure release valve to flow back into an oil tank, and an output shaft of the lifting oil cylinder shrinks, so that the top section descends until the top section is in butt joint with the top of a standard section; by controlling the pressure relief of the lifting oil cylinder, the top section can fall, the neutral position between the standard section and the top section is reduced, the standard section and the top section can be in butt joint with each other, the clamping range between the standard section and the top section is wider, the stability between the standard section and the top section is guaranteed, and the safety of the whole tower crane is improved.
本发明公布了一种塔吊顶节断电保护装置及保护方法,属于工程机械领域,当顶节上的抬升油缸将顶节顶起断电时,通过泄压阀控制抬升油缸内的液压油回流到油箱内,抬升油缸的输出轴收缩,使顶节下降,直至与标准节的顶部对接,通过控制对抬升油缸泄压,可以让顶节下落,减少标准节和顶节之间的空挡,让标准节和顶节之间可以相互对接,使标准节和顶节之间的可夹持的范围更多,进而保证标准节和顶节之间稳定,以提高整个塔吊安全性。
Tower ceiling power-saving power-off protection device and protection method
一种塔吊顶节断电保护装置及保护方法
2022-11-08
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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