After wire rope being pulled tightly, the safety brake loosen, operate safety inserting block's handle, withdraw the safety inserting block from guiding track framework.

钢丝绳涨紧后，防坠安全滑块松开，操纵安全插块控制手柄，使安全插块退出导轨架。

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Equivalent triangle structure is constructed with hinged bar elements to precisely simulate the effect of wire rope pulley block in the finite element analysis of structure of construction machines.

在工程机械结构有限元分析中，采用铰接杆单元构造等效三角结构，准确的模拟钢绳滑轮组的作用。

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