CN220156320U - Sand-proof oil seal mechanism of submersible motor - Google Patents
Sand-proof oil seal mechanism of submersible motor Download PDFInfo
- Publication number
- CN220156320U CN220156320U CN202321635478.2U CN202321635478U CN220156320U CN 220156320 U CN220156320 U CN 220156320U CN 202321635478 U CN202321635478 U CN 202321635478U CN 220156320 U CN220156320 U CN 220156320U
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- Prior art keywords
- motor
- sand
- oil seal
- steel sleeve
- oil
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- 239000003921 oil Substances 0.000 claims abstract description 71
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 239000004576 sand Substances 0.000 claims abstract description 33
- 239000010705 motor oil Substances 0.000 claims abstract description 20
- 230000002265 prevention Effects 0.000 claims description 5
- 239000013049 sediment Substances 0.000 abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 230000000694 effects Effects 0.000 description 11
- 239000007788 liquid Substances 0.000 description 9
- 230000037452 priming Effects 0.000 description 9
- 230000003405 preventing effect Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 238000005457 optimization Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000020681 well water Nutrition 0.000 description 3
- 239000002349 well water Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Motor Or Generator Frames (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to the technical field of submersible motors, in particular to a sand-proof oil seal mechanism of a submersible motor, which comprises a motor shaft and a workpiece arranged on the motor shaft, wherein a sand throwing device is sleeved on the motor shaft, an oil seal cover positioned in the sand throwing device is arranged on the workpiece, two motor oil seals are arranged in the oil seal cover, a small steel sleeve is arranged on the motor shaft, a large steel sleeve positioned below the small steel sleeve is arranged on the motor shaft, the two motor oil seals are respectively arranged on the motor shaft above the small steel sleeve and the large steel sleeve, and a sand-proof oil seal is arranged between the motor oil seal and the small steel sleeve and between the motor oil seal and the large steel sleeve. The utility model solves the problem that sediment easily enters the inner cavity of the motor when the existing submersible motor is used underground, thereby causing damage to the motor.
Description
Technical Field
The utility model relates to the technical field of submersible motors, in particular to a sand-proof oil seal mechanism of a submersible motor.
Background
Submersible motors are important equipment for deep well water extraction. Submerging in underground water or water in rivers, lakes, sea water and other places, the water-saving device is widely applied to water taking from underground water or water in rivers and lakes, agricultural irrigation, urban water supply, industrial and mining enterprises drainage, urban and rural building drainage, resident domestic water, urban or factory sewage and dirt treatment and the like. The upper guide bearing seat of the submersible motor is provided with a mechanical seal, and in the operation process, mud and sand flow into the mechanical seal, so that the mechanical seal is provided with a mechanical seal cover, an oil seal and a sand throwing ring. The sand throwing ring is arranged on the upper bearing seat of the submersible motor, and in the running process, the sand throwing ring throws away sundries such as sand grains with high density by utilizing the rotary centrifugal force.
At present, after the submersible motor goes into the well, sediment is carried in well water, and the lower part of an oil seal cover of the submersible motor is empty, so that when the sediment enters the oil seal cover of the submersible motor, the sediment is not thrown out by the sand throwing device, and the oil seal can be damaged. After silt in well water enters the inner cavity of the motor, the electromagnetic wire upper and lower shaft sleeves of the submersible motor are also accelerated to be worn, so that the service life of the submersible motor is greatly reduced.
Therefore, how to provide a submersible motor oil seal structure with simpler and more reasonable structural design and more excellent sand prevention effect becomes a technical problem to be solved by the technicians in the field.
Disclosure of Invention
The utility model provides a sand-proof oil seal mechanism of a submersible motor, which aims to solve the problem that sediment easily enters an inner cavity of the motor when the conventional submersible motor is used underground, so that the motor is damaged.
In order to achieve the above purpose, the utility model provides a sand-proof oil seal mechanism of a submersible motor, which comprises a motor shaft and a workpiece arranged on the motor shaft, wherein a sand throwing device is sleeved on the motor shaft, an oil seal cover positioned in the sand throwing device is arranged on the workpiece, two motor oil seals are arranged in the oil seal cover, a small steel sleeve is arranged on the motor shaft, a large steel sleeve positioned below the small steel sleeve is arranged on the motor shaft, the two motor oil seals are respectively arranged on the motor shaft above the small steel sleeve and the large steel sleeve, and sand-proof oil seals are respectively arranged between the motor oil seals and the small steel sleeve and between the motor oil seals and the large steel sleeve.
Principle and effect of the technology: when the submersible motor runs underwater, the sand-proof oil seal is arranged at the gap between the oil seal cover and the motor oil seal, so that the gap between the oil seal cover and the motor oil seal is filled, sediment in water cannot enter the motor oil seal, the sand-proof effect is achieved, the damage of the submersible motor to sediment is reduced, and the service life of the motor is prolonged.
As optimization, the sand-proof oil seal is a double-spring oil seal, and the double-spring oil seal is made of TG rubber.
By adopting the scheme, the sealing effect of adopting the double-spring oil seal is better, and the gap at the bottom of the oil seal cover can be filled, so that sediment in water is prevented from entering the motor cavity, damage is caused to the motor cavity, and the double-spring oil seal made of TG rubber can bear high pressure, and the TG rubber material has excellent heat resistance, so that the TG rubber material is suitable for high-temperature application, the high temperature generated during running of the submersible motor can not influence the sand-proof oil seal, the double-spring design ensures that the sealing piece can be kept in situ even under high pressure, the sealing effect of the double-spring oil seal is better, and the gap at the bottom of the oil seal cover can be filled, so that sediment in water is prevented from entering the motor cavity, and damage is caused to the motor cavity.
As optimization, the workpiece is sleeved on the motor shaft, an annular bulge is arranged at the top of the workpiece, and the oil seal cover is matched with the bulge.
By adopting the scheme, the oil seal cover can be supported by the workpiece, and the oil seal cover is fixed by the annular bulge.
As optimization, the bottom of the workpiece is provided with an annular chamber.
By adopting the scheme, the inside of the annular cavity can be stored with the priming liquid, so that the motor is cooled when the motor operates, and the submerged motor is prevented from being burnt due to overheat; the internal priming liquid of the submersible motor plays an anti-freezing role in winter weather and cold weather, so that the submersible motor cannot normally run due to too cold; the addition of priming liquid into the annular chamber also has the effect of ensuring lubrication and preventing wear.
Preferably, the outermost side wall of the oil seal cover is flush with the outermost side wall of the protrusion.
By adopting the scheme, the oil seal cover and the workpiece can be more tightly connected.
As optimization, a gap is reserved between the sand slinger and the oil seal cover.
By adopting the scheme, the lubricating oil is conveniently stored through the gap, so that friction is reduced, and the overall service life of the submersible motor part is prolonged.
Compared with the prior art, the utility model has the beneficial effects that: the sediment slinger on the motor shaft of the submersible motor can sling out a part of sediment in water, and the gap below the oil seal cover can be filled with the sediment through the double-spring oil seal, so that the sediment in the underground water can be blocked by the double-spring oil seal after entering the oil seal cover, and the sediment is prevented from entering the inner cavity of the submersible motor, so that the sediment preventing effect of the submersible motor and the service life of the submersible motor are improved.
Drawings
Fig. 1 is a front view of a sand seal mechanism of a submersible motor according to the present utility model.
Fig. 2 is a schematic diagram of the internal structure of the sand-proof oil seal mechanism of the submersible motor.
Fig. 3 is an enlarged schematic view at a in fig. 2.
In the figure: 1. a motor shaft; 2. a sand slinger; 3. a small steel sleeve; 4. an oil seal cover; 5. sand-proof oil seal; 6. an oil seal of a motor; 7. a large steel sleeve; 8. a workpiece.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 3, a sand-proof oil seal mechanism of a submersible motor comprises a motor shaft 1 and a workpiece 8. The top cover of motor shaft 1 is equipped with gets rid of sand ware 2, work piece 8 cover is established on motor shaft 1 and is located the below of getting rid of sand ware 2, the top of work piece 8 has integrated into one piece's annular bulge, install on the work piece 8 and be located the inside oil blanket lid 4 of getting rid of sand ware 2, the oil blanket lid 4 cover is established on motor shaft 1, the oil blanket lid 4 cooperates with annular bulge and the outside lateral wall of oil blanket lid 4 flushes with the outside lateral wall of annular bulge, leave the clearance between the bottom of getting rid of sand ware 2 and the top of oil blanket lid 4, can store lubricating oil therein through the clearance of reservation, thereby reduce the friction, increase the whole life of each spare part of submersible motor. The motor shaft 1 is respectively sleeved with a small steel sleeve 3 and a large steel sleeve 7, the small steel sleeve 3 and the large steel sleeve 7 are both positioned below the sand slinger 2, and the small steel sleeve 3 is positioned above the large steel sleeve 7. The small steel sleeve 3 and the large steel sleeve 7 can protect the motor shaft 1, so that the motor shaft 1 is prevented from being worn during rotation, and the service life of the submersible motor is reduced. Two motor oil seals 6 respectively sleeved outside the small steel sleeve 3 and the large steel sleeve 7 are arranged in the oil seal cover 4, sand prevention oil seals 5 are respectively sleeved between the motor oil seals 6 and the small steel sleeve 3 and between the motor oil seals 5 and the large steel sleeve 7, and the sand prevention oil seals 5 are double-spring oil seals. The double-spring oil seal is made of TG rubber, the double-spring oil seal made of TG rubber can bear high pressure, and the TG rubber material has excellent heat resistance, so that the double-spring oil seal is suitable for high-temperature application, and the high temperature generated during operation of the submersible motor can not influence the sand-proof oil seal. In addition, the double-spring design ensures that the sealing element can be kept in place even under high pressure, the sealing effect of the double-spring oil seal is better, and the gap at the bottom of the oil seal cover 4 can be filled, so that sediment in water is prevented from entering the inner cavity of the motor, and the inner cavity of the motor is damaged. The bottom of the workpiece 8 is provided with an annular cavity, and the arranged annular cavity can be internally stored with priming liquid, so that the motor is cooled when the motor operates, and the effect of preventing the submersible motor from being burnt due to overheating is achieved; the internal priming liquid of the submersible motor plays an anti-freezing role in winter weather and cold weather, so that the submersible motor cannot normally run due to too cold; the addition of priming liquid into the annular chamber also has the effect of ensuring lubrication and preventing wear.
When the submersible motor needs to be used underwater, the sand slinger 2 arranged on the motor shaft 1 can sling water and sediment inside the oil seal cover 4 outwards under the action of centrifugal force in the rotating process. And install the double spring oil blanket between two motor oil blanket 6 and little steel bushing 3, big steel bushing 7, the double spring oil blanket has filled the clearance between two motor oil blanket 6 and little steel bushing 3, the big steel bushing 7 to prevent silt entering, further improved sand control effect, increased submersible motor's life. The bottom of the workpiece 8 can be propped against other parts of the submersible motor, so that the interior of the annular cavity arranged at the bottom of the workpiece 8 can be filled with priming liquid, the motor is cooled when the motor operates, and the submersible motor can be prevented from being burnt due to overheating; the internal priming liquid of the submersible motor can also play a role in preventing freezing in winter when the weather is cold, so that the submersible motor cannot normally run due to the fact that the internal temperature is too low; the addition of priming liquid into the annular chamber also has the effect of ensuring lubrication and preventing wear of the components of the submersible motor during operation.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (6)
1. The utility model provides a sand prevention oil blanket mechanism of submersible motor, includes motor shaft (1) and sets up work piece (8) on motor shaft (1), its characterized in that: the motor shaft (1) is sleeved with the sand slinger (2), the workpiece (8) is provided with an oil seal cover (4) positioned inside the sand slinger (2), two motor oil seals are arranged inside the oil seal cover (4), the motor shaft (1) is provided with a small steel sleeve (3), the motor shaft (1) is provided with a large steel sleeve (7) positioned below the small steel sleeve (3), two motor oil seals (6) are respectively arranged on the motor shaft (1) above the small steel sleeve (3) and the large steel sleeve (7), and sand prevention oil seals (5) are respectively arranged between the motor oil seals (6) and the small steel sleeve (3) and the large steel sleeve (7).
2. A sand seal mechanism for a submersible motor as claimed in claim 1 wherein: the sand-proof oil seal (5) is a double-spring oil seal, and the double-spring oil seal is made of TG rubber.
3. A sand seal mechanism for a submersible motor as claimed in claim 1 wherein: the oil seal cover is characterized in that the workpiece (8) is sleeved on the motor shaft (1), an annular bulge is arranged at the top of the workpiece (8), and the oil seal cover (4) is matched with the bulge.
4. A sand seal mechanism for a submersible motor as claimed in claim 1 wherein: an annular chamber is formed in the bottom of the workpiece (8).
5. A sand seal mechanism for a submersible motor as claimed in claim 1 wherein: the outermost side wall of the oil seal cover (4) is flush with the protruding outermost side wall.
6. A sand seal mechanism for a submersible motor as claimed in claim 1 wherein: a gap is reserved between the sand slinger (2) and the oil seal cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321635478.2U CN220156320U (en) | 2023-06-26 | 2023-06-26 | Sand-proof oil seal mechanism of submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321635478.2U CN220156320U (en) | 2023-06-26 | 2023-06-26 | Sand-proof oil seal mechanism of submersible motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220156320U true CN220156320U (en) | 2023-12-08 |
Family
ID=89013891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321635478.2U Active CN220156320U (en) | 2023-06-26 | 2023-06-26 | Sand-proof oil seal mechanism of submersible motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220156320U (en) |
-
2023
- 2023-06-26 CN CN202321635478.2U patent/CN220156320U/en active Active
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