The invention discloses a self-balancing herringbone derrick mast which comprises a derrick mast head, a pair of derrick mast arms, a pair of stay wires and a pair of derrick mast feet. The derrick mast head comprises a hinged traction lifting lug, and the traction lifting lug is used for lifting a heavy object and connecting a stay wire; the top end of the derrick mast arm is hinged to the derrick mast head, and the bottom end of the derrick mast arm is hinged to the derrick mast foot. When falling type hoisting is carried out, the derrick mast arm is suitable for deflecting around the hinged position of the derrick mast foot so as to drive the lifting lug to deflect around the hinged position, and then the overturning force generated by the gravity of a hoisted object is balanced through the pulling force of the pull wire. The herringbone derrick mast has the beneficial effects that force balance can be automatically achieved through self-deflection of the derrick mast arm and the traction lifting lug, so that it is guaranteed that the derrick mast arm only bears compression force in the axial direction of the derrick mast arm, then the derrick mast arm is prevented from overturning or bending, and therefore the use safety of the herringbone derrick mast can be effectively improved.
本申请公开了一种自平衡人字扒杆,包括扒杆头、一对扒杆臂、一对拉线和一对扒杆脚;扒杆头包括铰接设置的牵吊耳,牵吊耳用于吊装重物以及连接拉线;扒杆臂的顶端与扒杆头进行铰接,扒杆臂的底端与扒杆脚进行铰接;当进行倒落式吊装时,扒杆臂适于通过绕扒杆脚铰接位置的偏转,以驱使牵吊耳绕铰接位置进行偏转,进而通过拉线的拉力平衡吊装物件重力产生的倾覆力。本申请的有益效果:可以通过扒杆臂以及牵吊耳的自偏转来自动实现力平衡,以保证扒杆臂只受沿自身轴向的压缩力,进而避免扒杆臂发生倾覆或弯曲,从而可以有效的提高人字扒杆的使用安全性。
Self-balancing herringbone derrick mast
自平衡人字扒杆
2022-11-29
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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