A wet dual-clutch automatic shifting system for oil drilling drawworks

Abstract

The invention discloses a wet-type double-clutch automatic shifting system for an oil drilling drawworks. The system includes an oil tank. The oil tank is sequentially connected with a hydraulic pump, a check valve, a two-position four-way solenoid valve a, a hydraulic control check valve through a pipeline, and a hydraulic pump. The control check valve is also connected with the oil inlet of the I-gear clutch and the II-gear clutch through the pipeline, the outlet of the one-way valve is also connected to the two-position four-way solenoid valve through the pipeline, and the two-position four-way solenoid valve is connected through the pipeline. The oil inlets of the I-gear clutch and II-gear clutch, and the oil tank are also connected with an oil drain circuit. The I and II clutches are wired in reverse. The wet dual-clutch automatic shifting system of the invention solves the problems of difficult tooth alignment and high failure rate of the existing cylinder and motor fretting auxiliary shift of the AC variable frequency electric drive oil drilling winch.

Description

technical field [0001] The invention belongs to the technical field of oil drilling equipment, and relates to a wet double-clutch automatic shifting system for an oil drilling drawworks. Background technique [0002] The shifting mechanism and technology of the oil drilling drawworks have been continuously improved and advanced. From the initial mechanical shifting to the cylinder shifting, and then to the cylinder plus motor fretting assisted shifting, the shifting operation has become more and more simple. The success rate of gear shifts is also getting higher and higher, but the existing cylinder plus motor fretting-assisted shifting still has problems such as difficulty in meshing gears, high failure rate of gear feedback sensors, and high degree of human intervention. Moreover, with the development of drilling rig technology, the requirements for automation level are getting higher and higher, and the cylinder plus motor fretting-assisted shifting technology is no longe...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a wet double-clutch automatic gear shifting system for oil drilling winches, which solves the problems of difficult tooth alignment and high failure rate of the existing cylinder plus motor micro-motion auxiliary gear shifting for oil drilling drawworks driven by AC variable frequency

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