Electromechanical commutator for oil pumping unit

Abstract

The invention discloses an electromechanical commutator for an oil pumping unit, which comprises a front-row planet gear system and a rear-row planet gear system, wherein the two planet gear systems share one planet carrier; a rear brake disc is fixed on the planet carrier; the rear brake disc and a normally-closed rear electromagnetic disk brake form a brake device; a front brake disc is fixed on a front-row center wheel; the front brake disc and a normally-closed front electromagnetic disk brake form another brake device; an input shaft is fixedly connected with a front-row inner gear ring and a rear-row center wheel; the front-row center wheel and the planet carrier are idled with the input shaft; a rear-row inner gear ring is fixedly connected with an output shaft; the front-row planet gear is simultaneously meshed with the front-row center wheel and the front-row inner gear ring; and the rear-row planet gear is simultaneously meshed with the rear-row center wheel and the rear-row inner gear ring. According to the electromechanical commutator for the oil pumping unit, a series of problems brought by the fact that a reciprocating rotary oil pumping unit directly commutates by an electromotor can be solved, and therefore, the electromechanical commutator for the oil pumping unit has an important practical value.

Description

technical field [0001] The invention relates to an electromechanical commutator of a reciprocating rotary pumping unit used in mechanical oil production with a rod. Background technique [0002] In mechanical oil production with rods, in addition to the beam pumping unit, there is also a new type of reciprocating rotary pumping unit. The reciprocating rotary pumping unit has a double-drum winch, and the winch is coaxially equipped with double drums-production drum and balance drum. The double drums are driven by the motor through the reducer to reciprocate and rotate. The steel wire rope wound in the production drum drives the sucker rod to do reciprocating linear motion, and drives the bottom well pump to complete the oil pumping work; the steel wire rope wound in the balance drum drives the balance block to do reciprocating motion, balancing the non-payload in the oil well, so that the power machine The power in the reciprocating rotary motion is basically the same. [0...

AI Technical Summary

Problems solved by technology

[0004] As we all know, for small power motors, frequent positive and negative rotations are very easy to achieve, but for high power motors, frequent positive and negative rotations are very difficult, not only need to be equipped with complex, large and expensive supporting devices, but also will affect the operation of the power grid, the motor Seriously affect the life of the motor, but also greatly reduce the efficiency of the motor, resulting in additional energy loss

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