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由一起动臂变幅门座式起重机使用过程中起重臂折断事故引发思考,对起重臂防后倾支撑装置进行改进,提出在设计该装置时运用“优先破坏”原则,使该装置确实实现安全保护功能。
A boom breaking arm crane in the process of using a breakage accident triggered thinking on the lifting arm anti-roll support device to improve, put forward in the design of the device using the principle of “priority to damage” so that the The device does achieve safety features.