DRIVE FOR DEEP-WELL SUCKED-ROD PUMPING UNIT

摘要

The invention relates to oil producing industry, in particular to sucker-rod pumping units intended for lifting liquid from well and can be used in other branches of industry and agriculture. The technical effect is aimed at eliminating harmful torques causing vibration of a conventional pumping unit preserving to receive the difference of time ratio of sucker rod throw in upward motion to downward motion. Proposed drive for deep-well sucker-rod pumping comprises an engine (5) coupled either directly or through reduction gear (6) with differential mechanisms (7), wherein each differential mechanism (7) has two output shafts or an output shaft (8) and a housing (14) rigidly coupled with crown castellated wheel (11), where the output shafts or an output shaft (8) and a housing (14) of each differential mechanism (7) are connected to balance beam (2) through crank and connecting rod forming crank-and rocker mechanism. The reduction gear (6) and two differential mechanisms (7) can be arranged in one housing or the reduction gear (6) can be connected through a chain or belt transmissions (17) or a propeller shaft or the reduction gear (6) can be positioned between the differential mechanisms (7) and connected thereto directly or through couplings (16).