CN220168214U

CN220168214U - Thrust bearing of submersible electric pump

Info

Publication number: CN220168214U
Application number: CN202320868149.6U
Authority: CN
Inventors: 刘建
Original assignee: TIANJIN JINSHENGDA PETROLEUM MACHINERY CO Ltd
Current assignee: TIANJIN JINSHENGDA PETROLEUM MACHINERY CO Ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-12-12
Anticipated expiration: 2033-04-18

Abstract

The utility model relates to the technical field of electric submersible pump bearings, in particular to an electric submersible pump thrust bearing which comprises a circular tube; the inside of pipe has the major axis, the bottom of major axis cup joints and installs the drum, the bottom butt of drum in the inside bottom of pipe, offer the logical groove that supplies the drum to place in the pipe, the nozzle stub is installed on the outer fringe face top of pipe, the electric telescopic handle is installed to the one end that the pipe was kept away from to the nozzle stub, the intussuseption is filled with lubricating oil, through drum, guiding gutter, nozzle stub, L pipe, electric telescopic handle and the telescopic part that are equipped with, the top of guiding gutter that the drum top set up is arranged in to the L pipe that installs through nozzle stub one end, then in extending into the nozzle stub through the telescopic part on the electric telescopic handle, extrude the lubricating oil in the nozzle stub to the guiding gutter through L pipe, then lubricate when long axis and drum rotation, be convenient for add lubricating oil at the electric submersible pump during operation in the pit.

Description

Thrust bearing of submersible electric pump

Technical Field

The utility model relates to the technical field of electric submersible pump bearings, in particular to a thrust bearing of an electric submersible pump.

Background

The submersible electric pump is a multi-stage centrifugal pump working underground, the submersible electric pump and an oil pipe are put into the well together, a ground power supply transmits electric energy to an underground submersible motor through a transformer, a control screen and a power cable, the submersible motor drives the multi-stage centrifugal pump to rotate, the electric energy is converted into mechanical energy, well fluid in an oil well is lifted to the ground, a blade guide wheel is a power component of the submersible electric pump, and the device can provide convenience for people in daily use.

The submersible electric pump unit consists of a submersible motor, a motor protector, an oil-gas separator and a pump body. The motor shaft stretches into the motor protector and then drives the oil-gas separator and the pump body to operate, so that the thrust bearing device is arranged in the motor protector. The conventional thrust bearing adopts ball bearings and roller bearings, and the rolling friction is that the ball bearings and the roller bearings are in contact with bearing rings at multiple points or multiple lines, so that the bearing load is small, and the thrust bearing cannot be applied to an electric submersible pump unit, and the electric submersible pump unit adopts a sliding friction high-load thrust bearing. The high-load thrust bearing consists of an upper static block, a moving block and a lower static block. The upper static block and the lower static block are annular block bodies with the single-side cross sections similar to an I shape, the movable block is an annular block body, the movable block is clamped between the upper static block and the lower static block, and the joint surfaces of the movable block and the upper static block and the lower static block are in sliding friction of annular surfaces, so that the load area is quite large, and high load is generated. Four positioning pin holes are formed in the rectangular rings on the outer sides of the ring blocks of the upper static block and the lower static block, and four stop round pins are uniformly distributed on an upper joint and a positioning block which are in butt joint with the upper joint and the positioning block respectively and extend into the positioning pin holes corresponding to the rectangular rings on the outer sides of the static blocks in a movable fit manner to realize butt joint.

Because the environment of submersible electric pump work is mostly underground, when using, inside lubricating oil is depleted, current submersible electric pump thrust bearing is inconvenient in time to add lubricating oil.

Disclosure of Invention

The utility model aims to provide a thrust bearing of an electric submersible pump, which aims to solve the problem that in the prior art, the working environment of the electric submersible pump is mostly underground, and when the electric submersible pump is used, the existing thrust bearing of the electric submersible pump is inconvenient to timely add lubricating oil after the internal lubricating oil is completely consumed.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the thrust bearing of the submersible electric pump comprises a circular tube;

the inside of pipe has the major axis, the bottom of major axis cup joints and installs the drum, the bottom butt of drum in the inside bottom of pipe, set up the logical groove that supplies the drum to place in the pipe, the nozzle stub is installed on the outer fringe face top of pipe, the one end that the pipe was kept away from to the nozzle stub is installed electronic telescopic link, the intussuseption of nozzle stub is filled with lubricating oil, is convenient for add lubricating oil.

Preferably, the top end of the short pipe is provided with a jacking pipe, the bottom end of the jacking pipe is communicated with the inside of the short pipe, and the top end of the jacking pipe is spirally connected with a screwing cover for supplementing lubricating oil stock.

Preferably, a plurality of gaskets are arranged in the cylinder, the gaskets are arranged at the bottom end of the long shaft, and the top end of the cylinder is provided with a diversion trench for receiving lubricating oil and forming a bearing.

Preferably, the L-shaped pipe is installed to the one end that the electric telescopic handle was kept away from to the nozzle stub, the one end that the nozzle stub was kept away from to the L-shaped pipe extends into in the pipe and is put in the top of guiding gutter, the interpolation of the lubricating oil of being convenient for.

Preferably, one end of the electric telescopic rod is provided with a telescopic part, the outer edge surface of the telescopic part is attached to the inner edge surface of the short pipe, and two screw threads abutting against the outer edge surface of the cylinder are symmetrically and spirally connected to the side surface of the round pipe and are used for forming a main body of the bearing.

Compared with the prior art, the utility model has the beneficial effects that:

through the drum that is equipped with, guiding gutter, nozzle stub, L shape pipe, electric telescopic handle and telescopic part, the top of guiding gutter that the drum top set up is arranged in to the L shape pipe that installs through nozzle stub one end, then extends into in the nozzle stub through the telescopic part on the electric telescopic handle, extrudees the lubricating oil in the nozzle stub to the guiding gutter through L shape pipe on, then lubricates when rotatory major axis and drum, is convenient for add lubricating oil at the electrical submersible pump during operation in the pit.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the utility model at A-A of FIG. 1;

fig. 3 is an enlarged schematic view of the structure at B in fig. 2 according to the present utility model.

In the figure: 1. a round tube; 101. screwing; 102. a through groove; 2. a long axis; 3. a cylinder; 301. a gasket; 302. a diversion trench; 4. a short pipe; 401. jacking pipes; 402. an L-shaped pipe; 5. an electric telescopic rod; 501. and a telescopic part.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-3, there is shown: the embodiment is a preferred implementation manner in the technical scheme, and the thrust bearing of the submersible electric pump comprises a circular tube 1;

the internally mounted of pipe 1 has major axis 2, and drum 3 is installed in cup joint in the bottom of major axis 2, and drum 3's bottom butt is in pipe 1's inside bottom, has offered the logical groove 102 that supplies drum 3 to place in the pipe 1, and nozzle stub 4 is installed on pipe 1's outer fringe face top, and electric telescopic handle 5 is installed to nozzle stub 4 one end of keeping away from pipe 1, and nozzle stub 4 intussuseption is filled with lubricating oil.

As shown in fig. 3, the top end of the short pipe 4 is provided with a jacking pipe 401, the bottom end of the jacking pipe 401 is communicated with the inside of the short pipe 4, and the top end of the jacking pipe 401 is spirally connected with a screwing cap;

as shown in fig. 2 and 3, a plurality of gaskets 301 are installed inside the cylinder 3, the gaskets 301 are arranged at the bottom end of the long shaft 2, and a diversion trench 302 is arranged at the top end of the cylinder 3;

as shown in fig. 3, an L-shaped pipe 402 is installed at one end of the short pipe 4 far away from the electric telescopic rod 5, and one end of the L-shaped pipe 402 far away from the short pipe 4 extends into the circular pipe 1 and is arranged above the diversion trench 302;

as shown in fig. 1 and 3, one end of the electric telescopic rod 5 is provided with a telescopic part 501, the outer edge surface of the telescopic part 501 is attached to the inner edge surface of the short pipe 4, and two screw threads 101 abutted against the outer edge surface of the cylinder 3 are symmetrically and spirally connected with the side surface of the circular pipe 1;

in this embodiment, lubricating oil is added into the short tube 4 through the top tube 401, then the top tube 401 is closed by screwing, when the lubricating oil needs to be added, the electric telescopic rod 5 is started through computer control, the telescopic part 501 on the electric telescopic rod 5 extends into the short tube 4, and then the lubricating oil in the short tube 4 is discharged to the upper part of the guide groove 302 through the L-shaped tube 402, so that the adding of the lubricating oil is completed.

The foregoing is a further elaboration of the present utility model in connection with the detailed description, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, should be considered as falling within the scope of the utility model as defined in the appended claims.

Claims

1. The thrust bearing of the submersible electric pump comprises a circular tube (1);

the method is characterized in that:

the novel telescopic pipe is characterized in that a long shaft (2) is arranged in the circular pipe (1), a cylinder (3) is sleeved at the bottom end of the long shaft (2), the bottom end of the cylinder (3) is abutted to the inner bottom end of the circular pipe (1), a through groove (102) for placing the cylinder (3) is formed in the circular pipe (1), a short pipe (4) is arranged at the top end of the outer edge surface of the circular pipe (1), an electric telescopic rod (5) is arranged at one end, far away from the circular pipe (1), of the short pipe (4), and lubricating oil is filled in the short pipe (4).

2. The electric submersible pump thrust bearing of claim 1, wherein: the top end of the short pipe (4) is provided with a jacking pipe (401), the bottom end of the jacking pipe (401) is communicated with the inside of the short pipe (4), and the top end of the jacking pipe (401) is spirally connected with a screwing cover.

3. The electric submersible pump thrust bearing of claim 1, wherein: the novel cylindrical drum is characterized in that a plurality of gaskets (301) are arranged in the cylinder (3), the gaskets (301) are arranged at the bottom end of the long shaft (2), and a diversion trench (302) is formed in the top end of the cylinder (3).

4. A thrust bearing for an electric submersible pump as claimed in claim 3, wherein: an L-shaped pipe (402) is arranged at one end, far away from the electric telescopic rod (5), of the short pipe (4), and one end, far away from the short pipe (4), of the L-shaped pipe (402) extends into the circular pipe (1) and is arranged above the diversion trench (302).

5. The electric submersible pump thrust bearing of claim 1, wherein: one end of the electric telescopic rod (5) is provided with a telescopic part (501), the outer edge surface of the telescopic part (501) is attached to the inner edge surface of the short pipe (4), and two screw threads (101) which are abutted to the outer edge surface of the cylinder (3) are symmetrically and spirally connected to the side surface of the round pipe (1).