Numerically-controlled distance-measuring brake drum oil pumping unit

Abstract

The invention discloses a numerically-controlled distance-measuring brake drum oil pumping unit, which comprises a base, a rack, a balanced box, a beam hanger, a load belt, an upper platform, a reduction brake drum mechanism, a driving mechanism, a tight-up belt, a broken rod protection mechanism, a lifting / descending travelling mechanism, an electric control mechanism, a load discharging mechanism of a fixed rope hanging pile and zeroing soft iron, wherein the reduction brake drum mechanism is arranged in front of the upper platform and connected with the driving mechanism by the tight-up belt; the broken rod protection mechanism is arranged between the reduction brake drum mechanism and the driving mechanism; a programmable logic controller (PLC) of the electric control mechanism carries out logic operation according to an input state and outputs a control signal; the control signal directs the controller to control the on and off, a rotary speed and forward and reverse rotation of a motor and directs broken rod protection; and the electric control mechanism is used for safely operating the oil pumping unit, adjusting the stroke frequency and stroke of the oil pumping unit without downtime, judging a fault and executing protection.

Description

technical field [0001] The present invention relates to a ground oil production mechanical equipment for oil production in an oil field, specifically a numerical control distance measurement that controls stroke and stroke times by numerical control distance measurement, facilitates the removal and unloading of loads at the wellhead for inspection and maintenance, safe and convenient operation and machine transfer, and electric control for broken rod protection. Brake drum pumping unit. Background technique [0002] The pumping unit is a conventional equipment for surface oil production in oilfields. The beam pumping unit is the earliest equipment used for surface oil production. It is still in use because of its high reliability, but its system efficiency is low and energy consumption is high. Adjusting stroke times It is recognized that the labor intensity is high. In order to improve the efficiency of the system, a variety of vertical pumping units have appeared, includi...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the problem that the self-locking drum of the friction-driven self-locking reversing pumping unit cannot be realized, the stroke length is inconvenient to adjust, the protection of the broken rod is limited, the load cannot be removed and unloaded by itself, and the workover cannot meet the working space Shortcomings such as demand, incomplete reversing buffer function, etc.

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