Mechanical arm lifting base used for grabbing drill rod in auxiliary mode

Abstract

The invention relates to a mechanical arm lifting base used for grabbing a drill rod in an auxiliary mode. The base comprises a base body and a rotating arm support. The base body comprises a base frame and a frame main body arranged on the base frame, and one end of the rotating arm support is connected with the end of the frame main body in a rotating mode. The base further comprises an oil cylinder connected with an external hydraulic control valve, the bottom of the oil cylinder is connected with the base frame in a rotating mode, one end of a first connection rod and one end of a second connection rod are both connected with the thrust end of a piston rod of the oil cylinder, and the other ends of the first connection rod and the second connection rod are connected with the rotating arm support and the lateral wall of the frame main body in a rotating mode. Compared with manual hoisting, force application is even when lifting is conducted by the oil cylinder, and the stability is better. By means of matching of the first connection rod, the second connection rod and the thrust end of a piston rod of the oil cylinder, flexible lifting is conducted by the rotating arm support grabbing the drill rod, no labor is required in the lifting process, and construction efficiency for replacement and disassembly of the drill rod is improved.

Description

technical field [0001] The invention relates to the technical field of engineering drilling rigs, in particular to a lifting base of a mechanical arm for laying and assisting in grabbing drill pipes. Background technique [0002] In order to meet the engineering requirements of different needs, the drill bit of the engineering drilling rig needs to be lifted and lowered frequently during the working process. The number of drill pipes connected to the drill bit reaches as many as 30, and the length of each drill pipe reaches 2.5 meters and the weight reaches 270. kg, which brings great difficulty to replace and disassemble the drill pipe. [0003] At present, people often use hydraulic or motor-driven winches to complete the replacement and disassembly of drill pipes at the same time as manual hoisting. Such replacement and disassembly methods are not only time-consuming and laborious, and the process is cumbersome, but also because there are too many human factors in the rep...

AI Technical Summary

Problems solved by technology

[0003] At present, people often use hydraulic or motor-driven winches to complete the replacement and disassembly of drill pipes at the same time as manual hoisting. Such replacement and disassembly methods are not only time-consuming and laborious, and the process is cumbersome, but also because there are too many human factors in the replacement and disassembly process. , resulting in low positioning accuracy for replacement and disassembly, seriously affecting the overall construction stability and work efficiency of the drilling rig

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