Supported auto-balancing self-service type pumping unit

Abstract

The invention relates to an automatic adjustable new pumping unit with load balance. It solves the problem that in prior pumping unit good load balance can not be obtained in working. Tail-shaft load balance automatic adjustable system of pumping unit, which can move to and fro, is set at the tail of walking beam. By moving the walking beam the crankshaft changes the load at the tail of walking beam through connection bar so as to adjust the value of weight automatically or in hand. It is equal to install the device system on the walking beam of pumping unit, which can adjust the load balance of pumping unit automatically and in hand. When the pumping unit works, the pumping unit can obtain load balance. When the pumping unit works, after other parts such as central shaft, tail shaft and so on are destroyed, the problem of big exchanging difficulty is solved. Bracket system of waling beam is set on the bracket of pumping unit. When central shaft, tail shaft and connecting bar are exchanged, there is no need to disassembly the walking beam. Sliding rail is set on the walking beam and a pair of double-hook electric lifting chain, which can move to and fro, is set on the sliding rail of walking beam.

Description

technical field [0001] The invention relates to a load automatic balancing self-service pumping unit. Background technique [0002] 1. For the oil wells produced by pumping oil production, in order to solve the problem that the pumping unit in the prior art is in the production work, the pumping unit cannot get a good load balance in the process of reciprocating up and down during the work, and the upward movement of the donkey head At this time, if the weight of the sucker rod plus the weight of the liquid in the pipe space is basically equal to the weight of the tail load of the pumping unit, but when the donkey head is going down, the weight of the sucker rod cannot be equal to the weight of the tail load of the pumping unit , every time the oil pump extracts more or less liquid, it will affect the upward or downward load of the pumping unit to be unbalanced. This not only increases the power consumption of the power equipment, but also produces strong vibrations during ...

AI Technical Summary

Problems solved by technology

[0002] 1. For the oil wells produced by pumping oil production, in order to solve the problem that the pumping unit in the prior art is in the production work, the pumping unit cannot get a good load balance in the process of reciprocating up and down during the work, and the upward movement of the donkey head At this time, if the weight of the sucker rod plus the weight of the liquid in the pipe space is basically equal to the weight of the tail load of the pumping unit, but when the donkey head is going down, the weight of the sucker rod cannot be equal to the weight of the tail load of the pumping unit , every time the oil pump extracts more or less liquid, it will affect the upward or downward load of the pumping unit to be unbalanced

This not only increases the power consumption of the power equipment, but also produces strong vibrations during the long-term unbalanced operation, causing premature damage or breakage of various components. The sucker rod operates up and down for a long time in this unbalanced state. Strong vibration is generated, and the pulling force greatly increases fatigue, reducing the service life of the sucker rod

When the gears in the gearbox alternately go up and down, the loads of the pumping unit vary greatly, which causes strong impact and friction between the gears in the gearbox, which causes damage to the gears in the gearbox too quickly, and also accelerates The braids of the pumping unit are damaged, which also causes accelerated wear of the belt, reducing the service life of the belt and other problems that appear prematurely

[0003] 2. For oil wells produced by pumping oil production, in order to solve the problem of large workload and difficulty in maintaining or replacing other components such as the central shaft and tail shaft of the pumping unit in the prior art during the production work of the pumping unit

Images