Pure electric direct-drive rotary drilling rig

Abstract

The invention provides a pure electric direct-drive rotary drilling rig. The pure electric direct-drive rotary drilling rig comprises a high-voltage power supply system, a control signal communicationsystem and a mechanical power transmission system. The high-voltage power supply system comprises a power storage battery system connected to rectifying equipment through a high-voltage distributionbox, and an external cable connected with a corresponding interface of the rectifying equipment; direct-current high-voltage electricity output by the rectifying equipment is connected into controllers of a power head motor I, a power head motor II, a main pump motor and a main winch motor, and the direct-current high-voltage electricity is converted into three-way high-voltage electricity throughthe controllers to be electrically connected with motors of the mechanical power transmission system correspondingly; the control signal communication system comprises a chassis controller for receiving and identifying a driver instruction and oil pressure state information from a pump set, and corresponding signal output ends of the chassis controller are connected into corresponding signal input ends of an HMI and a control valve set correspondingly; and the oil pressure signal output end of the chassis controller is connected into controllers of a main winch, the power head motor II, the main pump motor and the power head motor I through a new energy controller and the corresponding interface of the rectifying equipment correspondingly.

Description

technical field [0001] The invention relates to a rotary drilling rig suitable for the technical field of foundation construction, in particular to a pure electric direct drive rotary drilling rig. Background technique [0002] In recent years, the domestic infrastructure industry has developed rapidly, and domestic construction machinery manufacturers have proposed technical solutions for rotary drilling rigs that are suitable for the market and suitable for basic engineering machinery construction, and their performance has been fully verified by the market. Existing rotary drilling rigs have been able to well meet the needs of various customers at the functional level, but the driving force source of the whole machine still remains at the traditional power, and all functions also rely on the working mode of the traditional power coupling hydraulic drive system joint operation Realization does not conform to the development theme of "energy saving, green and environmental ...

AI Technical Summary

Problems solved by technology

The present invention abandons the traditional engine-combined hydraulic drive or the traditional three-phase asynchronous motor combined hydraulic drive power, instead the main working power is the direct drive of the permanent magnet synchronous motor, and the auxiliary working power is the composite power of the permanent magnet synchronous motor combined with the hydraulic drive. Reduce the power transmission path, and fundamentally solve the problems of high noise, high diesel engine emissions, and high energy consumption of rotary drilling rigs

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