The multi-head rotating crown block is provided with a plurality of pulley support assemblies, can drag and hoist a plurality of devices at the same time, and can be switched among the devices through rotation; comprising a stand column, a driving device, a traction steel wire rope and at least two sets of pulleys and pulley support assemblies. The stand column is vertically arranged, the two sets of pulleys and pulley support assemblies are arranged on the side portion of the stand column, the traction steel wire ropes penetrate through the pulleys and pulley support assemblies respectively, a driving device is arranged at the bottom of the stand column, and the stand column is driven by the driving device to rotate so that the two sets of pulleys and pulley support assemblies can be put into use respectively. The crown block can drag and hoist a plurality of devices at the same time, the downtime can be saved and the coaxiality of the spliced drill rods can be ensured when repeated operations such as the spliced drill rods are needed, and the self-stabilization characteristic of the rotary crown block is realized by transmitting the weight of the pulley, the pulley assembly and the devices to the axial lead of the vertical shaft through the traction steel wire rope. The device is especially suitable for being used together with an ultrahigh mast.
本发明是一种具有多个滑轮支架组件、能够同时牵引吊装多个设备且在各个设备之间能够通过旋转切换的多头旋转天车;包括立柱、驱动装置、牵引钢丝绳以及至少两套滑轮及滑轮支架组件;立柱竖直设置,两套滑轮及滑轮支架组件设置在立柱的侧部,牵引钢丝绳分别穿设在每组滑轮及滑轮支架组件中,在立柱的底部设置驱动装置,通过驱动装置带动立柱的旋转从而使两套滑轮及滑轮支架组建分别投入使用。本天车在同一时间内可牵引吊装多个设备,在需要续接钻杆等重复性操作时可以节省停机时间并保证续接钻杆的同轴度,还通过牵引钢丝绳将滑轮及滑轮组件、设备的重量传递到竖轴的轴心线上,实现本旋转天车“自稳”特征,如此,尤其适于搭配超高桅杆一同使用。
Multi-head rotating crown block with self-stabilizing characteristic
一种具有“自稳”特征的多头旋转天车
06.06.2023
Patent
Elektronische Ressource
Chinesisch