Non-gear counterweight drawing type oil pumping machine provided with motor at lower

A gearless, pumping unit technology, used in belts/chains/gears, mechanical equipment, transmissions, etc., can solve the problems of short service life, poor safety, and high cost of wire ropes, and achieve the safety factor and improve service life. Effect

Inactive Publication Date: 2009-04-22
王武
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AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a gearless counterweight traction pumping unit with a motor under a reasonable structural design, which fundamentally solves the problems of high cost, short service life of steel wire ropes

Method used

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  • Non-gear counterweight drawing type oil pumping machine provided with motor at lower

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Embodiment Construction

[0018] according to figure 1 The present invention is described in detail. The present invention comprises machine base 16, and frame 7 is arranged on suspension device and traction device on frame 7 and sucker rod 1 and counterweight 9 that it drives, wherein: suspension device and traction device are separated from each other, and suspension device has no Power and basically balanced, including the sky wheel 3 arranged on the top of the frame 7, the sky wheel 3 suspends the sucker rod 1 and the counterweight 9 on both sides of the sky wheel 3 by hanging the steel wire rope 2, and the sky wheel 3 arranged on the top of the frame 7 Wheel 3 is an unpowered mechanism and only plays a guiding role, so its diameter can be very large. The diameter of suspension wire rope 2 depends on the suspension weight of suspension device and the diameter of sky wheel 3, so can select single thicker wire rope as suspension wire rope 2.

[0019] In order to realize the traction function of the...

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Abstract

The invention relates to a gearless counterweight towing oil extractor the motor of which is arranged on the lower part, which fundamentally solves the problems in the prior towing oil extractor of high cost, short service life of wire ropes and poor safety. The technical key points of the gearless counterweight towing oil extractor are as follows: a suspension device is arranged on the top of a frame; a pumping rod and a counterweight are suspended on both sides of a head sheave through suspended wire ropes; a driving sheave of a tractor and a belt pulley of a belt gear which is arranged on a foundation and driven by a magnetoelectric machine are arranged on the same transmission shaft; and one end of a conveying rope on the driving sheave passes by a guide wheel which is fixed on the frame and a movable pulley one which is arranged on the upper part of the counterweight and then is fixed on the top of the frame, and the other end of the conveying rope passes by a movable pulley two which is arranged on the lower part of the counterweight and then is fixed on the foundation. The gearless counterweight towing oil extractor has the advantages of high transmission efficiency, low energy consumption, small volume, light weight and low manufacturing cost, and realizes more convenient assembly and maintenance of a system.

Description

technical field [0001] The invention belongs to the technical field of oil production machinery in oilfields, and relates to a traction pumping unit, in particular to a gearless counterweight traction pumping unit with a low-stroke and long-stroke motor placed underneath. Background technique [0002] At present, the pumping unit commonly used in the oil field is mainly a beam pumping unit, which is composed of a donkey head, a beam, a bracket, a reduction box, a rocker arm, a connecting rod, a machine base, a motor, a control cabinet and other mechanisms. Its working principle is that the motor transmits the power to the reducer through the belt, and the reducer drives the rocker arm, drives the beam to swing up and down around a fixed point, and realizes the vertical reciprocating motion of the sucker rod. However, due to the use of a transmission device with a reducer, this beam pumping unit not only has the disadvantages of low transmission efficiency, high energy consum...

Claims

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Application Information

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IPC IPC(8): E21B43/00F16H19/06
Inventor 王武
Owner 王武
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