The invention relates to the technical field of steel pipe lifting appliances, in particular to a portal crane steel pipe lifting appliance and a lifting method thereof, and a lifting mechanism reciprocates in the vertical direction, drives the upper end of a link rod to vertically move, pushes a pulley to transversely reciprocate along an inclined guide rail, and drives a middle main hook to automatically open and close. The middle main hook is evenly stressed, the steel pipe is always kept balanced during clamping, clamping is stable and reliable, and the device is suitable for safe lifting of the steel pipe. Through cooperation of the link rod and the inclined guide rail, the two pulleys can be driven to move synchronously and oppositely, and stability and balance of the middle main hook are achieved. Interference between the steel pipe and the tackle stroke is reasonably avoided, and friction force borne by the tackle during sliding is small. The main hooks clamp the steel pipe, loads received by the lifting mechanism are distributed in a balanced mode, and balance of clamping force between the two middle main hooks is guaranteed. In the clamping state, the lifting mechanism plays a locking role, the tackle is prevented from accidentally disengaging or sliding in the moving process, the overall safety is guaranteed, and the stroke is stable and reliable.
本发明涉及钢管吊具技术领域,具体涉及一种门机钢管吊具及其吊装方法,包括升降机构竖直方向往复运行,带动联杆上端竖向运动,将滑车推动沿倾斜导轨在横向往复运动,带动中间主钩自动打开和关闭。中间主钩受力均匀,夹持时使得钢管始终保持平衡,夹持稳定可靠,适合钢管的安全吊装。通过联杆和倾斜导轨配合,驱动两个滑车能够同步且相向运动,实现中间主钩的稳定性和平衡性。合理避免了钢管和滑车行程的干涉,滑车滑动时受到的摩擦力小。主钩夹持钢管,升降机构收到的载荷平衡分配,确保两个中间主钩间夹持力的平衡。夹持状态下,升降机构起到锁紧的作用,防止滑车在运动过程中发生意外脱离或滑动,保证整体的安全性,行程稳定可靠。
Door machine steel pipe lifting appliance and lifting method thereof
一种门机钢管吊具及其吊装方法
20.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
Lifting appliance, lifting device and method for lifting pipe gallery
Europäisches Patentamt | 2025
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