CN209170100U - Well submersible motor sand-prevention structure - Google Patents
Well submersible motor sand-prevention structure Download PDFInfo
- Publication number
- CN209170100U CN209170100U CN201821606944.3U CN201821606944U CN209170100U CN 209170100 U CN209170100 U CN 209170100U CN 201821606944 U CN201821606944 U CN 201821606944U CN 209170100 U CN209170100 U CN 209170100U
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- Prior art keywords
- lower cover
- end cover
- motor
- motor shaft
- cover
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model belongs to submersible machine technical field, and in particular to a kind of well submersible motor sand-prevention structure, including lower cover, upper end cover is fixed on lower cover, motor shaft runs through lower cover and upper end cover, and lower cover, upper end cover and motor shaft form seal chamber, and seal chamber is interior filled with lubricating oil；The junction of lower cover and motor shaft, upper end cover and motor shaft is equipped with mechanical seal, and the stationary ring of mechanical seal is separately fixed on lower cover and upper end cover, and the rotating ring of mechanical seal is each attached to motor shaft, is equipped with spring between two mechanical seals.Well described in the utility model is safe and reliable, practical with submersible motor sand-prevention structure, keep motor cavity and extraneous medium completely isolated, especially suitable for working in the environment containing solid impurity and sand grain in external well liquid, effectively prevent pollution of the environmental liquids to motor cavity, avoid lower guide bearing, lower thrust bearing Fast Wearing, the failure rate for reducing submersible motor is integrally improved the service life of submersible motor.
Description
Technical field
The utility model relates to a kind of well submersible motor sand-prevention structures, belong to submersible machine technical field.
Background technique
Submersible motor is equipped with sand prevention sealing structure, for preventing silt from entering motor cavity, traditional sand prevention sealing structure
It in the well water environment existing for silt, is used for double rubber framework grease seals since the antiwear property of outside framework oil seal epipharynx is poor
Service life is very short, and the solid impurity and sand grain in external well liquid easily enter inside motor, leads to the upper lower leading axle of motor
It holds, lower thrust bearing Fast Wearing, damage, seriously affects the service life of submersible motor.
Utility model content
According to the above-mentioned deficiencies in the prior art, technical problem to be solved by the utility model is: one kind is provided can be to prevent
Only the solid impurity in well liquid and sand grain enter the submersible motor sand-prevention structure of the well inside motor, improve submersible motor
Service life.
Well described in the utility model submersible motor sand-prevention structure, including lower cover, upper end cover are fixed on lower cover,
Motor shaft runs through lower cover and upper end cover, and lower cover, upper end cover and motor shaft form seal chamber, and seal chamber is interior filled with lubricating oil；
The junction of lower cover and motor shaft, upper end cover and motor shaft is equipped with mechanical seal, and the stationary ring of mechanical seal is separately fixed at
On lower cover and upper end cover, the rotating ring of mechanical seal is each attached to motor shaft, is equipped with spring between two mechanical seals.
Lower cover, upper end cover and motor shaft form seal chamber, mechanical close full of clean lubricating oil in seal chamber when work
The rotating ring of envelope is rotated with motor shaft, forms effective oil in seal face with the stationary ring being fixed on lower cover and upper end cover
Film completes end face seal, and the solid impurity and sand grain prevented in external well liquid enters inside motor, grease chamber
Lubricating oil cools heat caused by dynamic and static two rubbing surface of ring simultaneously.
The upper end cover is equipped with tank filler sleeve, and lower cover is equipped with outage, is equipped with therewith in tank filler sleeve and outage
Compatible sealing-plug.
The junction of the upper end cover and lower cover is equipped with sealing ring, makes that seal chamber is tight, No leakage.
The upper end cover is arranged on lower cover by fixing bolt component.
Possessed beneficial effect is the utility model compared with prior art:
Well described in the utility model submersible motor sand-prevention structure, simple structure, sealing effect are good, exist for mechanical seal
Establish suitable working environment in seal chamber, closed seal chamber is not in because of solids such as silts in external well liquid
Grain and machinery amount of seal wear greatly reduces the phenomenon that so that mechanical seal is failed, when work, so that make mechanical seal uses the longevity
Life greatly prolongs；Well described in the utility model is safe and reliable, practical with submersible motor sand-prevention structure, makes motor cavity and outer
Boundary's medium is completely isolated, especially suitable for working in the environment containing solid impurity and sand grain in external well liquid, effectively
Pollution of the environmental liquids to motor cavity is avoided, lower guide bearing, lower thrust bearing Fast Wearing are avoided, reduces diving electricity
The failure rate of machine is integrally improved the service life of submersible motor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1, top guide bearing seat；2, motor shaft；3, mechanical seal；4, lower cover；5, outage；6, fixing bolt group
Part；7, sealing ring；8, upper end cover；9, tank filler sleeve；10, motor casing；11, spring.
Specific embodiment
The utility model is described further below with reference to embodiment:
As shown in Figure 1, well described in the utility model submersible motor sand-prevention structure, including lower cover 4, upper end cover 8 are logical
It crosses six fixing bolt components 6 to be arranged on lower cover 4, the junction of upper end cover 8 and lower cover 4 is equipped with sealing ring 7, this implementation
The sealing ring 7 of example uses O-ring seal.Motor shaft 2 runs through lower cover 4 and upper end cover 8, lower cover 4, upper end cover 8 and motor shaft 2
Confined space is formed, confined space is interior filled with lubricating oil；Lower cover 4 and motor shaft 2, upper end cover 8 and the junction of motor shaft 2 are equal
Equipped with mechanical seal 3, the stationary ring of mechanical seal 3 is separately fixed on lower cover 4 and upper end cover 8, and the rotating ring of mechanical seal 3 is solid
It is scheduled on motor shaft 2, is equipped with spring 11 between two mechanical seals 3.
Upper end cover 8 is equipped with tank filler sleeve 9, and lower cover 4 is equipped with outage 5, is equipped with therewith in tank filler sleeve 9 and outage 5
Compatible sealing-plug.
Motor shaft 2 is positioned by top guide bearing seat 1, and lower cover 4 is fixed on motor casing 10 when use, lower cover 4, upper end cover
8 and motor shaft form seal chamber, by tank filler sleeve 9 full of clean lubricating oil in seal chamber, the rotating ring of mechanical seal 3 is with electricity
Arbor rotates together, forms effective oil film in seal face with the stationary ring being fixed on lower cover 4 and upper end cover 8, completes
End face seal, the solid impurity and sand grain prevented in external well liquid enter inside motor, and the lubricating oil of grease chamber is same
When cool heat caused by dynamic and static two rubbing surface of ring.The utility model economy and practical, reduces submersible motor
Failure rate, be integrally improved the service life of submersible motor.
Claims (4)
1. a kind of well submersible motor sand-prevention structure, it is characterised in that: including lower cover (4), upper end cover (8) is fixed on lower cover
(4) on, motor shaft (2) runs through lower cover (4) and upper end cover (8), and lower cover (4), upper end cover (8) and motor shaft (2) form close
Space is closed, confined space is interior filled with lubricating oil；The junction of lower cover (4) and motor shaft (2), upper end cover (8) and motor shaft (2)
It is equipped with mechanical seal (3), the stationary ring of mechanical seal (3) is separately fixed on lower cover (4) and upper end cover (8), mechanical seal
(3) rotating ring is each attached to motor shaft (2), is equipped with spring (11) between two mechanical seals (3).
2. well according to claim 1 submersible motor sand-prevention structure, it is characterised in that: set on the upper end cover (8)
Have tank filler sleeve (9), lower cover (4) is equipped with outage (5), and tank filler sleeve (9) is interior equipped with compatible close therewith with outage (5)
Blocking.
3. well according to claim 1 submersible motor sand-prevention structure, it is characterised in that: the upper end cover (8) is under
The junction of end cap (4) is equipped with sealing ring (7).
4. well according to claim 1 submersible motor sand-prevention structure, it is characterised in that: the upper end cover (8) passes through
Fixing bolt component (6) is arranged on lower cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821606944.3U CN209170100U (en) | 2018-09-29 | 2018-09-29 | Well submersible motor sand-prevention structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821606944.3U CN209170100U (en) | 2018-09-29 | 2018-09-29 | Well submersible motor sand-prevention structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209170100U true CN209170100U (en) | 2019-07-26 |
Family
ID=67332694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821606944.3U Active CN209170100U (en) | 2018-09-29 | 2018-09-29 | Well submersible motor sand-prevention structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209170100U (en) |
-
2018
- 2018-09-29 CN CN201821606944.3U patent/CN209170100U/en active Active
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