CN219181292U - Well submersible motor overhead thrust bearing - Google Patents
Well submersible motor overhead thrust bearing Download PDFInfo
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- CN219181292U CN219181292U CN202222945586.1U CN202222945586U CN219181292U CN 219181292 U CN219181292 U CN 219181292U CN 202222945586 U CN202222945586 U CN 202222945586U CN 219181292 U CN219181292 U CN 219181292U
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- friction pair
- ring
- motor
- thrust bearing
- chassis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The utility model discloses an overhead thrust bearing of a submersible motor for a well, which comprises a friction pair stationary ring fixed on a motor upper bearing seat and a sliding disc arranged on a motor rotor output shaft, wherein the sliding disc comprises a chassis and a friction pair movable ring, the chassis is fixed on the motor rotor output shaft, the friction pair movable ring is fixed inside the chassis, and radial water guide lubrication grooves distributed circumferentially are formed on any friction surface of the friction pair stationary ring and the friction pair movable ring. The utility model is arranged on the upper surface of the motor upper bearing seat, is positioned at an external shaft outlet position on the motor, is connected with the motor upper bearing seat by the well submersible pump body, is also a water inlet position when the water pump runs, and has the advantages that water flows through the well submersible pump body, the friction pair moving ring rotates along with the rotor shaft to lead the water to be lubricated and cooled in the friction pair static ring, and meanwhile, the external water flow speed is higher, the heat generated by the friction pair is taken away rapidly, the cooling is rapid, the well submersible pump body can be lubricated by external water flow and has rapid heat dissipation, and the burning is not easy to cause.
Description
Technical Field
The utility model relates to an overhead thrust bearing of a submersible motor for a well, in particular to an overhead thrust bearing of a submersible motor for a well for shielding water filling.
Background
In the prior art, a thrust bearing of a submersible motor for a water filling well is arranged below the inner part of the motor and is supported at the lower end part of a rotor shaft, the thrust bearing comprises a friction pair movable ring arranged at the lower end part of the rotor shaft and a friction pair static ring arranged on a lower bearing seat, and lubrication and heat dissipation are realized by means of water storage in the motor. Therefore, how to solve the technical problems that the water lubrication is gradually reduced and the service life of the thrust bearing is prolonged is the technical problem to be solved at present.
Disclosure of Invention
The utility model aims to provide an overhead thrust bearing of a submersible motor for a well, which can be lubricated by external water flow, has fast heat dissipation and is not easy to burn.
The utility model relates to a technical scheme of an overhead thrust bearing of a submersible motor for a well, which comprises the following steps: the motor rotor sliding disk comprises a friction pair static ring fixed on a motor upper bearing seat and a sliding disk arranged on a motor rotor output shaft, wherein the sliding disk comprises a chassis and a friction pair dynamic ring, the chassis is fixed on the motor rotor output shaft, the friction pair dynamic ring is fixed inside the chassis, and radial water guide lubrication grooves distributed circumferentially are formed in any friction surface of the friction pair static ring and the friction pair dynamic ring.
One of the further preferable technical schemes of the utility model is that the radial water guide lubrication groove is a radial arc-shaped water guide lubrication groove.
According to a second technical scheme, the friction surface of the friction pair stationary ring is provided with sliding blocks which are circumferentially distributed at intervals, the interval channels of the sliding blocks are radial water guide lubrication grooves, and the friction surface of the friction pair movable ring is smooth.
In a further preferred embodiment of the utility model, the chassis is coupled to the rotor shaft by means of a key, and an axial locking nut is also mounted on the rotor shaft, which locks the chassis axially.
The fourth aspect of the further preferred embodiment of the present utility model is that the friction pair stationary ring and the friction pair movable ring are made of silicon carbide.
The fifth technical scheme of the utility model is that the static friction pair ring and the dynamic friction pair ring are fixed by screws.
According to a sixth technical scheme of further preferred technical scheme, the friction pair stationary ring and the friction pair movable ring are fixed in an interference fit mode.
According to a seventh technical scheme of further preferred technical scheme, the outer circles of the friction pair stationary ring and the friction pair movable ring are extended to form bulges, the upper surface of the motor upper bearing seat and the upper surface of the chassis are respectively provided with a concave which is in clearance fit with the bulges, and the friction pair stationary ring and the friction pair movable ring are limited to rotate.
The beneficial effects of the utility model are as follows: the utility model is arranged on the upper surface of the motor upper bearing seat and is positioned at an external shaft outlet position on the motor, the well submersible pump body is connected to the motor upper bearing seat, the water inlet position is also the water inlet position when the water pump runs, water flows through the friction pair moving ring along with the rotor shaft certainly when the water pump runs, the water is brought into the friction pair static ring for lubrication and cooling, and meanwhile, the external water flow speed is higher, the heat generated by the friction pair is taken away rapidly, and the cooling is rapid, so the utility model has the beneficial effects of being lubricated by external water flow and dissipating heat quickly, and being difficult to cause burning.
Drawings
The submersible motor overhead thrust bearing for a well according to the present utility model will be described in more detail with reference to the accompanying drawings.
Fig. 1 is a sectional view showing a structure in which an overhead thrust bearing of a submersible motor for a well of the present utility model is mounted on a motor.
Fig. 2 is a sectional view showing a structure of the submersible motor for a well according to the present utility model in a state where an upper thrust bearing is mounted.
FIG. 3 is a schematic structural view of a radial water-guiding lubrication groove on any friction surface of a friction pair in an overhead thrust bearing of a submersible motor for a well according to the present utility model.
Fig. 4 is a schematic structural view of a friction surface of a friction pair stationary ring in an overhead thrust bearing of a submersible motor for a well of the present utility model with a slider.
Fig. 5 is a schematic structural view of protrusions extending from the outer circles of a static friction pair ring and a dynamic friction pair ring in an overhead thrust bearing of a submersible motor for a well.
Fig. 6 is a schematic diagram of the structure of the motor upper bearing seat and the chassis with depressions in the submersible motor upper thrust bearing for the well of the utility model.
The figure shows: the friction pair static ring 1, a motor upper bearing seat 10, a radial water guide lubrication groove 11, a sliding block 12, a sliding disc 2, a chassis 21, a friction pair dynamic ring 22, an axial locking nut 3, a bulge 4, a recess 5 and a shaft outlet 6.
Detailed Description
As shown in fig. 1 to 4, the technical scheme of the overhead thrust bearing of the submersible motor for the well of the utility model is as follows: the motor rotor sliding disk comprises a friction pair static ring 1 fixed on a motor upper bearing seat 10 and a sliding disk 2 arranged on a motor rotor output shaft 6, wherein the sliding disk 2 comprises a chassis 21 and a friction pair dynamic ring 22, the chassis 21 is fixed on the motor rotor output shaft 6, the friction pair dynamic ring 22 is fixed inside the chassis 21, and radial water-guiding lubrication grooves 11 distributed circumferentially are formed in any friction surface of the friction pair static ring 1 and the friction pair dynamic ring 22. In this embodiment, the friction pair stationary ring 1 and the friction pair movable ring 22 should be made of a material with high hardness and wear resistance, and the radial water guiding lubrication groove 11 is preferably provided on the friction pair stationary ring 1, so that a small amount of lubrication water can be hidden, starting resistance is reduced, adhesion between friction pairs can be effectively prevented, water lubrication effect is enhanced, and service life of the thrust bearing is prolonged.
As shown in fig. 3, one of the further preferred embodiments of the present utility model is that the radial water guiding lubrication groove 11 is a radial arc-shaped water guiding lubrication groove. In this embodiment, the radial arc-shaped water-guiding lubrication groove is arranged on the friction surface of the static ring 1 of the friction pair, and meanwhile, the arc is preferably along the rotation direction of the rotor, so that the external water is more easily brought into the friction pair, and a lubrication water film is rapidly formed.
As shown in fig. 4, in a second further preferred embodiment of the present utility model, the friction surface of the friction pair stationary ring 1 is provided with circumferentially spaced sliding blocks 12, the spaced channels of the sliding blocks are radial water-guiding lubrication grooves 11, and the friction surface of the friction pair movable ring 22 is smooth. In this embodiment, the sliding block 12 may be integrally formed by the base material of the friction pair static ring 1, or may be independently embedded, or may be embedded in a manner that the sliding block is not movable, or in a manner that the sliding block is embedded in a micro-alignment manner.
As shown in fig. 1-2, a further preferred embodiment of the present utility model is that the chassis 21 is connected to the motor rotor shaft 6 by a key, and an axial locking nut 3 is further mounted on the motor rotor shaft 6, and the axial locking nut 3 axially locks the chassis 21. In this embodiment, the key connection mode may have a flat key and spline mode, so that the chassis 21 may have an axial movement to adjust the dynamic clearance of the friction pair to maintain an optimal lubrication water film.
As shown in fig. 1 to 5, a fourth preferred embodiment of the present utility model is that the friction pair stationary ring 1 and the friction pair movable ring 22 are made of silicon carbide. In the embodiment, the silicon carbide can be sintered and manufactured, so that the hardness is high, the wear resistance is excellent, and the service life of the product can be prolonged.
As shown in fig. 1 to 4, a fifth preferred embodiment of the present utility model is that the friction pair stationary ring 1 and the friction pair movable ring 22 are fixed by screws. In the embodiment, the countersunk head of the screw is lower than the friction surface, and the machining precision of the shapes of the friction pair static ring 1 and the friction pair moving ring 22 can be reduced by adopting a screw fixing mode, so that the cost is reduced, and meanwhile, the installation and the maintenance are convenient.
As shown in fig. 1 to 4, a sixth preferred embodiment of the present utility model is that the friction pair stationary ring 1 and the friction pair movable ring 22 are fixed by interference fit. In the embodiment, the interference fit mode increases the machining precision of the shapes of the friction pair static ring 1 and the friction pair dynamic ring 22, but the hidden danger of falling off and friction screws is avoided.
As shown in fig. 5 to 6, a seventh preferred technical scheme of the present utility model is that the outer circles of the friction pair static ring 1 and the friction pair moving ring 22 are extended with protrusions 4, the upper surface of the motor upper bearing seat 10 and the chassis 21 are respectively provided with a concave 5 which is in clearance fit with the protrusions 4 correspondingly, and the friction pair static ring 1 and the friction pair moving ring 22 are limited to rotate. In this embodiment, the protrusions 4 and the recesses 5 may be matched with each other in any shape, and the concave-convex matching only limits the rotation of the friction pair static ring 1 and the friction pair dynamic ring 22, so that the processing precision of the shapes of the friction pair static ring 1 and the friction pair dynamic ring 22 can be reduced, and the hidden danger of falling or friction screws is avoided, and the installation and the maintenance are convenient.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, and the present utility model should be construed as being limited to the scope of the present utility model as long as the present utility model is implemented by substantially the same means.
Claims (8)
1. An overhead thrust bearing of submersible motor for well, its characterized in that: the motor rotor sliding disk comprises a friction pair static ring fixed on a motor upper bearing seat and a sliding disk arranged on a motor rotor output shaft, wherein the sliding disk comprises a chassis and a friction pair dynamic ring, the chassis is fixed on the motor rotor output shaft, the friction pair dynamic ring is fixed inside the chassis, and radial water guide lubrication grooves distributed circumferentially are formed in any friction surface of the friction pair static ring and the friction pair dynamic ring.
2. The submersible motor overhead thrust bearing of claim 1, wherein: the radial water guide lubrication groove is a radial arc water guide lubrication groove.
3. The submersible motor overhead thrust bearing of claim 1, wherein: the friction surface of the friction pair stationary ring is provided with sliding blocks which are circumferentially distributed at intervals, the interval channels of the sliding blocks are radial water guide lubrication grooves, and the friction surface of the friction pair movable ring is smooth.
4. The submersible motor overhead thrust bearing of claim 1, wherein: the chassis is connected with the motor rotor output shaft through a key, and an axial locking nut is further arranged on the motor rotor output shaft and axially locks the chassis.
5. The submersible motor overhead thrust bearing of claim 1, wherein: the friction pair stationary ring and the friction pair movable ring are made of silicon carbide.
6. The submersible motor overhead thrust bearing of claim 1, wherein: the fixed of the friction pair static ring and the friction pair dynamic ring is fixed by screws.
7. The submersible motor overhead thrust bearing of claim 1, wherein: the fixed of the friction pair static ring and the friction pair dynamic ring is fixed in an interference fit manner.
8. The submersible motor overhead thrust bearing of claim 1, wherein: the outer circles of the friction pair static ring and the friction pair moving ring are extended to form bulges, the upper surface of the motor upper bearing seat and the chassis are respectively provided with a concave which is correspondingly in clearance fit with the bulges, and the friction pair static ring and the friction pair moving ring are limited to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222945586.1U CN219181292U (en) | 2022-11-05 | 2022-11-05 | Well submersible motor overhead thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222945586.1U CN219181292U (en) | 2022-11-05 | 2022-11-05 | Well submersible motor overhead thrust bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219181292U true CN219181292U (en) | 2023-06-13 |
Family
ID=86660017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222945586.1U Active CN219181292U (en) | 2022-11-05 | 2022-11-05 | Well submersible motor overhead thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219181292U (en) |
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2022
- 2022-11-05 CN CN202222945586.1U patent/CN219181292U/en active Active
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