Mechanical drilling rig is limited by its own characteristic and cannot realize the free and precise adjustment of pump flushing.In this regard,the supporting technology of electric drilling pump unit of mechanical drilling rig was studied.The electrical control system was designed,the belt drive scheme and the hydraulic coupler drive scheme for the transformation of electric drilling pump unit were analyzed,and the power system was selected.Finally,the field application of electric drilling pump unit of mechanical drilling rig was introduced.
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