SU1337553A1 - Well pumping unit drive - Google Patents

Abstract

The invention relates to a technique for the mechanical extraction of oil and improves the reliability of operation. Center 6 of the curvature of the arc of the rear shoulder of the balancer (B) 2 is shifted relative to the support 1 swing towards the working surface of the rear shoulder. As a result, when swinging B 2, the length of the rear arm of B 2 is changed, which contributes to changing the law of movement of the shaft 11 of the column shtang, and with it the pump working body. 4 il. l (L 05 sd sd s fig.

Description

This invention relates to a technique for mechanized oil production.

The purpose of the invention is to increase the reliability of work.

FIG. Figure 1 shows in principle the drive diagram of a borehole pumping unit; : ia FIG. 2 - the upper position of the rear arm of the balancer; in fig. 3 - the middle position of the rear arm of the balancer; in fig. 4 - lower position of the rear arm of the balancer.

The drive of the borehole pumping unit contains a figured balancer 2 installed on the swing support 1 with a flexible element 3, the working surfaces of the front and rear arms 4 and 5 of which are formed by two

When swinging the balancer 2 on the support 1 of the swing, as a result of displacement of the center 6 of the curvature of the arc of the rear shoulder 5 of the balancer 2 relative to the support 1 of the swing to the side of the working surface of the rear shoulder, the length of the rear shoulder of the balancer 2 changes, which contributes to changing the movement law of the rod 11 of the column Shtang, and together with them - and the working body of a submersible pump (not shown). 10 Connecting the crank mechanism 8 to the balancer 2 through the flexible element 3 provides compensation for dynamic stresses arising during operation of the drive due to the possibility of spatial movement of the elements of the crank formula.

arcs, the radius of the first of which is equal to the pinch mechanism 8 relative to the length of the front shoulder 4 of the balancer 2, and the rear shoulder 5 of the balancer 2. the center 6 of the curvature of the arc of the rear shoulder 5 of the balancer 2 is displaced relative to the support 1 of the swing to the side of the working surface of the rear of the shoulder 5 of the balancer 2.20 Drive downhole pumping unit, One end 7 of the flexible element 3 kine-containing figure-shaped balance mounted on a swing support with a flexible element, the working surfaces of the front and rear arms of which are formed by two arcs, the radius of the first equal to

is mathematically connected via a crank mechanism 8 to the engine 9, and the other end 10 is connected to the rod 11 of the shtang column (not shown).

The flexible element 3 is rigidly connected to the top-25 of the front shoulder, while one horse is part of the balancer. 2. The flexible element is kinematically connected through the crank mechanism to the engine, and the other is connected to the stem shaft and rigidly connected to the ba. , lancer, characterized in that, for the purpose of

the cut-off crank mechanism 8 and ° increase reliability, the center of the balancing beam 2 with the flexible element 3 of the transverse arc of the balance arm rear shoulder is squeezed into a reciprocating motion relative to the swing bearing to the side

working surface of the rear shoulder.

Drive downhole pumping unit operates as follows.

The rotational movement of the engine 9

columns shtang.

When swinging the balancer 2 on the support 1 of the swing, as a result of displacement of the center 6 of the curvature of the arc of the rear shoulder 5 of the balancer 2 relative to the support 1 of the swing to the side of the working surface of the rear shoulder, the length of the rear shoulder of the balancer 2 changes, which contributes to changing the movement law of the rod 11 of the column Shtang, with them - and the working body of a submersible pump (not shown). 0 Connecting the crank mechanism 8 to the balancer 2 through the flexible element 3 compensates for the dynamic stresses arising during operation of the drive due to the possibility of spatial movement of the elements of the tweezer mechanism 8 relative to the rear balance 5 of the balancer 2. The drive of the borehole pumping unit, which is installed on the support Kachan figured balancer with a flexible element, the working surfaces of the front and rear shoulders of which are formed by two arcs, the radius of the first of which is equal to

Claims (1)

Invention Formula of the uni mechanism 8 relative to the 5 balance bar 2. the borehole pumping unit mounted on the balance bar with a flexible front surface of which the first of which the dius is formed L7 srig.2 7 five fig.d Editor M. Bandura Order 4108/30 VNIIPI USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, ul. Project, 4 srigL Compiled by M. Raschepkin Tehred I. Veres Circulation 574 Proofreader L. Beskyd Subscription