RU2747068C1 - Modernized rocking machine - Google Patents

Abstract

FIELD: oil industry.SUBSTANCE: invention relates to the oil industry, in particular to the mechanical drive of a rod pump. It is a rocking machine that includes a frame, a rack pivotally connected to it, a balance beam having a body and a head, a traverse, a crank mechanism, a gearbox, and an electric engine. The rack has a front and rear support, connected pivotally. The head of the balance beam is made with the possibility of rotation. The upper working platforms are installed under the body of the balance beam. A working platform is installed above the gearbox. The electric engine is mounted on a movable plate mounted on a rigid structure. The head of the balance beam is made monolithic, with the ability to rotate at an angle of up to 90°; it is connected to the balance beam body with a finger and a spring lock. The end fence of the working platform installed above the gearbox is designed to function as a ladder for climbing to the upper working platforms.EFFECT: device provides ease of maintenance, strengthening and simplification of the design.5 cl, 5 dwg

Description

The invention relates to the oil industry and is an individual mechanical drive of a sucker rod pump for an oil well.

From RU 2581256 C2, a rocking machine is known, which includes a balancer fixed on a pivoting arm-base, having a head, rods, a gearbox, and a crank mechanism.

RU 2417330 C2 discloses a rocking machine, which includes a support frame, a balancer, a crank mechanism, and the balancer is pivotally attached to the support frame with the formation of the front and rear arms of the balancer relative to the hinge axis.

From KZ 3677 U, an individual mechanical drive of a sucker rod pump is known, including a frame, a rack pivotally connected to it, a balancer having a body and a head, a traverse, a gearbox, an electric motor, and the rack has front and rear supports pivotally connected, the balancer head is rotatable at an angle of up to 110 °, upper working platforms are installed under the body of the balancer, a working platform is installed above the gearbox, the electric motor is installed on a movable plate fixed on a rigid structure.

This device is characterized by inconvenience when lifting to the upper platforms, and fastening the balancer head and the balancer body with four fingers presents additional labor costs both when dismantling the balancer head separately and when dismantling the pumping unit as a whole.

The technical problem is the inconvenience in servicing the device, difficulties in dismantling it.

The closest analogue is the device for KZ 3677 U.

The technical result is ease of maintenance, which is achieved by strengthening and simplifying the design.

A modernized rocking machine is proposed, including a frame, a rack pivotally connected to it, a balancer having a body and a head, a traverse, a crank mechanism, a gearbox, an electric motor, and the rack has front and rear supports, connected by a hinge, the balancer head is rotatable , upper working platforms are installed under the body of the balancer, a working platform is installed above the gearbox, the electric motor is installed on a movable plate fixed on a rigid structure. The fence is made with three gates, the balancer head is made monolithic, with the ability to rotate through an angle of up to 90 °, is connected to the balancer body by a finger and a spring lock, and the end fence of the working platform, installed above the gearbox, is designed to function as a ladder for climbing to the upper working platforms.

In a particular case, the head of the balancer is additionally fixed using a cotter pin.

In a particular case, to prevent rotation of the driven pulley, a retainer is installed on the frame.

In a particular case, the drive pulley has a hinged cover.

In a particular case, the rocking machine is equipped with a quick-detachable ladder for climbing to the working platform above the gearbox, and the ladder is fixed with two fingers.

The technical result is ease of maintenance, including ease of dismantling, strengthening and simplification of the structure.

The invention is illustrated by illustrations:

Fig. 1 is a general view of the rocking machine;

Fig.2 - the head of the balancer in the folded position with the body of the balancer;

Fig. 3 shows a quick-detachable ladder and a drive pulley casing;

Fig. 4 - shows the installation of the working platform above the gearbox,

Fig. 5 - shows the retainer of the driven pulley.

In the illustrations, the positions indicate:

1 - frame,

2 - front support pivotally connected to the frame,

3 - balancer head,

4 - balancer body,

5 - suspension of the stuffing box rod,

6 - bearing support of the balancer,

7 - the lower heads of the connecting rods,

8 - traverse,

9 - connecting rods,

10 - counterweights,

11 - cranks,

12 - rear support of the rack,

13 - quick-detachable ladder,

14 - spring clip,

15 - upper working platforms,

16 - finger

17 - brake rack,

18 - screw brake,

19 - platform above the gearbox,

20 - reducer,

21 - electric motor,

22 - lower casing of the driving pulley of the belt drive,

23 - electric motor adjustment plate,

24 - beam for fastening the pumping unit to the foundation,

25 - fence,

26, 27 - fence gates,

28 - driven pulley retainer,

29 - cotter pin.

The modernized rocking machine contains a frame 1, pivotally connected to it by the front 2 and rear 12 by the strut supports, the balancer head 3 with the balancer body 4, the suspension of the stuffing box rod 5, the bearing support 6 of the balancer, by means of the crosshead 8 and the crank mechanism 7.9 connected with a reducer 20. The crank mechanism includes connecting rods 9 and the lower heads 7 of the connecting rods. The head of the balancer 3 is connected to the body of the balancer 4 by a spring lock 14 and a pin 16. The rocking machine includes counterweights 10, cranks 11, a quick-release ladder 13, upper working platforms 15, a brake rack 17 with a screw brake 18, a platform above the gearbox 19, an electric motor 21, lower casing (drive pulley) 22 of the belt drive, electric motor adjustment plate 23, beam 24 for attaching the pumping unit to the foundation, fence 25 with gates 26 and 27. The balancer head 3 is made monolithic and installed on the balancer body with a finger. The angle of rotation of the head is regulated by a spring clip 14. Additional fastening of the head of the balancer to the body is achieved by using a cotter pin 29. The rack has front 2 and rear 12 supports, pivotally connected. The working platform above the gearbox 20, installed on the gearbox, is made in such a way that the end fences of the platform act as ladders for climbing to the upper platforms, which are located under the body of the balancer for access to the maintenance of the balancer support. To fix the driven pulley, a latch 28 is provided on the frame.

The rocking machine works as follows.

Installation of the pumping unit is carried out on a pre-prepared concrete base, foundation. After installing the frame 1 on the rack 2, a massive balancer 4 is hung on it, which balances the special head 3. To strengthen the structure, the head 3 of the balancer is made monolithic. The power drive of the pumping unit is the electric motor 23, which, through the gearbox 20, transmits the force to the balancer 4. Through the crank 11 with the connecting rod 9, the electric motor acts on the balancer 4, due to which the rotation of the electric motor shaft is converted into a cyclic translational movement of the elements of the deep pump. Installation of the balancer head 3 with the ability to rotate through an angle of up to 90 ° due to the spring lock 14 facilitates maintenance and repair of the wellhead and provides vehicle access. The front 2 and rear 12 legs of the rack are pivotally connected, which makes it possible not to remove the upper service platforms installed on them. On the working platform, the end rails also serve as a ladder for climbing to the upper platforms. This design reduces labor costs during installation and dismantling of the pumping unit and provides ease of maintenance of the units. For free access of workers to the drive in the longitudinal sections of the fence 25, wickets 26 are made. The ladder 13 is made in a quick-detachable version, for the convenience of servicing the electric motor and the drive pulley, it is necessary to pull out the ladder by removing two fingers. The protective casing is made in a folding form, it is enough to fold the casing and replace the drive belts.

The design of the device provides ease of maintenance, dismantling, while strengthening and simplifying the structure of the device.

Claims (5)

1. Upgraded rocking machine, including a frame, a rack pivotally connected to it, a balancer having a body and a head through a traverse and a crank mechanism connected to a gearbox, an electric motor, a guard, and the rack has front and rear supports pivotally connected, a head the balance bar is rotatable, upper working platforms are installed under the balance bar body, a working platform is installed above the gearbox, the electric motor is installed on a movable plate fixed on a rigid structure, characterized in that the fence is made with three wickets, the balance bar head is made monolithic with the ability to rotate by an angle up to 90 °, connected to the body of the balancer with a finger and a spring clip, and the end fence of the working platform, installed above the gearbox, is designed to function as a ladder for climbing to the upper working platforms. 2. The rocking machine upgraded according to claim 1, characterized in that the balance beam head is additionally fixed using a cotter pin. 3. The rocking machine modernized according to claims 1, 2, characterized in that to prevent rotation of the driven pulley, a retainer is installed on the frame. 4. The rocking machine upgraded according to claims 1 to 3, characterized in that the drive pulley has a hinged casing. 5. The rocking machine modernized according to claims 1-4, characterized in that it is equipped with a quick-detachable ladder for climbing to the working platform above the gearbox, and the ladder is fixed with two fingers.

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