Mechanical transmission system of drilling rig winch

Abstract

The invention provides a mechanical transmission system of a drilling rig winch. The mechanical transmission system of the drilling rig winch comprises a gear box which is formed by welding an upper box body and a lower box body. A pluggable shaft assembly, an input shaft assembly, an intermediate shaft assembly, an output shaft assembly and a drill spindle assembly are arranged on the gear box. The pluggable shaft assembly is connected with the intermediate shaft assembly. According to the mechanical transmission system of the drilling rig winch, the box of a welded structure is adopted; the mechanical transmission system of the drilling rig winch has the characteristics of being low in weight, short in manufacturing cycle, few in internal defect, capable of being adapted to structural adjustment and convenient to change; in addition, short and long angular teeth which are arranged alternately are adopted, the tooth surface contact area in the gear shifting process is decreased, and a guiding function is achieved, so that the gear shifting rate is increased to almost 95%, and the gear shifting effect is effectively guaranteed; the practicability of the mechanical transmission system is improved, the application range of the mechanical transmission system is widened, and market application and popularization are facilitated.

Description

technical field [0001] The invention relates to the technical field of drilling rig drawworks, in particular to a mechanical transmission system of a drilling rig drawworks. Background technique [0002] Drilling rig drawworks refers to mechanical equipment that drives drilling tools to break rocks and drill underground to obtain oil or natural gas during drilling. [0003] The cabinets of most of the drilling rig drawworks in the prior art are all cast structure cabinets, and their gearboxes all use two-speed gearboxes, which are two-stage gear transmission mechanisms. Generally, there are three gears: high, low and neutral. bit. [0004] However, in the process of implementing the technical solution, the inventor found the following defects in the prior art: the weight of the casting structure box is relatively large, the manufacturing cycle is long, and the structure is inconvenient to change, so it cannot be well adapted to structural adjustment; in addition , the succ...

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Problems solved by technology

[0004] However, in the process of implementing the technical solution, the inventor found the following defects in the prior art: the weight of the casting structure box is relatively large, the manufacturing cycle is long, and the structure is inconvenient to change, so it cannot be well adapted to structural adjustment; in addition , the success rate of gear shifting in the prior art is low, and the ability to adapt to the environment is poor

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