CN201821193U - Tight sand-sealing device of submersible motor - Google Patents
Tight sand-sealing device of submersible motor Download PDFInfo
- Publication number
- CN201821193U CN201821193U CN2010201941461U CN201020194146U CN201821193U CN 201821193 U CN201821193 U CN 201821193U CN 2010201941461 U CN2010201941461 U CN 2010201941461U CN 201020194146 U CN201020194146 U CN 201020194146U CN 201821193 U CN201821193 U CN 201821193U
- Authority
- CN
- China
- Prior art keywords
- sand
- submersible motor
- cover
- envelope
- fixed sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Motor Or Generator Frames (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a tight sand-sealing device of a submersible motor, which is formed by combining an upper rotating sand-sealing sleeve and a lower fixed sand-sealing device sleeve. The tight sand-sealing device can prolong the service life of a bearing of the submersible motor by 1-3 year(s); and the tight sand-sealing device of the submersible motor is easy to manufacture, has low cost and is convenient to install.
Description
Technical field
The utility model relates to a kind of submersible motor, especially a kind of tight sand packer for submersible motor.
Background technology
At present, submersible motor only is provided with envelope sand lid in the upper end of submersible motor seal groove, this set can not effectively stop silt particle, making silt particle see through envelope sand covers in the seal groove on the seal groove circle top that accumulates in submersible motor, continuous rotation by submersible motor, silt particle is brought in copper sheathing, graphite bearing and the following thrust bearing of submersible motor, caused the accelerated wear test of copper sheathing, graphite bearing and the following thrust bearing of submersible motor, reduce the useful life of submersible motor.Therefore, designing a kind of silt particle that can effectively stop and enter the tight sand packer for submersible motor in the copper sheathing of submersible motor, graphite bearing and the following thrust bearing, is the present technical issues that need to address.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of silt particle that can effectively stop and enters the tight sand packer for submersible motor in the copper sheathing of submersible motor, graphite bearing and the following thrust bearing.
The technical scheme in the invention for solving the technical problem is:
A kind of tight sand packer for submersible motor, this tight sand packer is made of fixed sealing sand cover and rotation envelope sand cover, the outer peripheral face face of cylinder of fixed sealing sand cover the latter half, it is the frustum face that fixed sealing sand overlaps first part, the external diameter of fixed sealing sand device cover is suitable with the internal diameter of submersible motor seal groove, the Lower Half branch of fixed sealing sand cover is embedded in the seal groove of submersible motor, fixed sealing sand cover and submersible motor seal groove interference fit, the first half of fixed sealing sand cover exceeds the seal groove of submersible motor, the internal diameter of fixed sealing sand cover is suitable with the diameter of submersible motor axle, the outer peripheral face that rotates envelope sand cover is the frustum face, the lower surface of rotating envelope sand cover is for overlapping the inner conical surface of the frustum face coupling of first part with fixed sealing sand, rotate the frustum face frictional fit of the inner conical surface and the fixed sealing sand cover of envelope sand cover, the inner peripheral surface that rotates envelope sand cover is the ladder cylinder, the internal diameter that rotates envelope sand cover the latter half is suitable with the submersible motor axle, rotating envelope sand, to overlap the internal diameter of first part suitable with the diameter of the exit of submersible motor axle, seals interior back that sand overlaps first part and be provided with the suitable keyway of keyway with submersible motor axle exit rotating.Rotate envelope sand cover water submersible motor axle high speed rotating together, drop on that silt particle on conical surface will doubly throw away on it under action of centrifugal force, because rotate the inner conical surface of envelope sand cover and the friction matching relation of the frustum face that fixed sealing sand overlaps, silt particle may not enter in copper sheathing, graphite bearing and the following thrust bearing of submersible motor by its frictional fit face.Therefore, this set can stop copper sheathing, graphite bearing and the following thrust bearing destruction of silt particle to submersible motor, the useful life of improving submersible motor greatly.
The technical scheme in the invention for solving the technical problem can also be:
The inner peripheral surface of fixed sealing sand device cover of the present utility model is an inner conical surface, and the diameter of its upper end is suitable with the diameter of submersible motor axle, and the diameter of its lower end is greater than the diameter of submersible motor axle.
The beneficial effects of the utility model are:
Compared with prior art, the utility model can make prolong 1～3 year the useful life of submersible motor bearing; Simultaneously, the utility model making is simple, cost is low, easy for installation.
Description of drawings
Fig. 1 is the front view (analysing and observe) of the utility model structural representation.
Fig. 2 is the upward view of Fig. 1.
Fig. 3 is the location drawing of the utility model in submersible motor.
Fig. 4 is that the envelope sand of prior art covers the location drawing in submersible motor.
Embodiment
Shown in Fig. 1～2, a kind of tight sand packer for submersible motor, it is characterized in that: this tight sand packer covers 1 envelope sand lid by fixed sealing sand cover envelope sand and rotates envelope sand cover envelope sand and covers 2 envelope sand lid and constitute, fixed sealing sand cover envelope sand covers the outer peripheral face face of cylinder of 1 envelope sand lid the latter half, fixed sealing sand cover envelope sand covers 1 envelope sand, and to cover half part be the frustum face, the internal diameter that fixed sealing sand device cover envelope sand covers the external diameter of 1 envelope sand lid and submersible motor seal groove is suitable, the Lower Half branch that fixed sealing sand cover envelope sand covers 1 envelope sand lid is embedded in the seal groove of submersible motor, fixed sealing sand cover envelope sand covers 1 envelope sand lid and submersible motor seal groove interference fit, the first half that fixed sealing sand cover envelope sand covers 1 envelope sand lid exceeds the seal groove of submersible motor, the diameter that fixed sealing sand cover envelope sand covers the internal diameter of 1 envelope sand lid and submersible motor axle is suitable, the outer peripheral face that rotation envelope sand cover envelope sand covers 2 envelope sand lid is the frustum face, rotate envelope sand cover envelope sand and cover the lower surface of 2 envelope sand lid for covering the inner conical surface that 1 envelope sand covers the frustum face coupling of half part with fixed sealing sand cover envelope sand, rotate envelope sand cover envelope sand and cover the inner conical surface of 2 envelope sand lid and the frustum face frictional fit that fixed sealing sand cover envelope sand covers 1 envelope sand lid, the inner peripheral surface that rotation envelope sand cover envelope sand covers 2 envelope sand lid is the ladder cylinder, the internal diameter that rotation envelope sand cover envelope sand covers 2 envelope sand lid the latter half is suitable with the submersible motor axle, rotate envelope sand cover envelope sand and cover 2 envelope sand to cover the internal diameter of half part suitable with the diameter of the exit of submersible motor axle, cover interior back that 2 envelope sand cover half part and be provided with the keyway envelope sand suitable and cover 3 envelope sand and cover rotating envelope sand cover envelope sand with the keyway of submersible motor axle exit.The inner peripheral surface that fixed sealing sand device cover envelope sand covers 1 envelope sand lid is an inner conical surface, and the diameter of its upper end is suitable with the diameter of submersible motor axle, and the diameter of its lower end is greater than the diameter of submersible motor axle.
Claims (2)
1. tight sand packer for submersible motor, it is characterized in that: this tight sand packer is by fixed sealing sand cover (1) and rotate envelope sand cover (2) formation, the outer peripheral face of fixed sealing sand cover (1) the latter half is the face of cylinder, fixed sealing sand cover (1) the first half is the frustum face, the external diameter of fixed sealing sand device cover (1) is suitable with the internal diameter of submersible motor seal groove, the Lower Half branch of fixed sealing sand cover (1) is embedded in the seal groove of submersible motor, fixed sealing sand cover (1) and submersible motor seal groove interference fit, the first half of fixed sealing sand cover (1) exceeds the seal groove of submersible motor, the internal diameter of fixed sealing sand cover (1) is suitable with the diameter of submersible motor axle, the outer peripheral face that rotates envelope sand cover (2) is the frustum face, the lower surface of rotating envelope sand cover (2) be the inner conical surface that the frustum face with fixed sealing sand cover (1) the first half mates, rotate the inner conical surface of envelope sand cover (2) and the frustum face frictional fit of fixed sealing sand cover (1), the inner peripheral surface that rotates envelope sand cover (2) is the ladder cylinder, the internal diameter that rotates envelope sand cover (2) the latter half is suitable with the submersible motor axle, the diameter of the internal diameter of rotation envelope sand cover (2) the first half and the exit of submersible motor axle is suitable, is provided with the keyway (3) suitable with the keyway of submersible motor axle exit in the interior back of rotating envelope sand cover (2) the first half.
2. a kind of tight sand packer for submersible motor according to claim 1 is characterized in that: the inner peripheral surface of fixed sealing sand device cover (1) is an inner conical surface, and the diameter of its upper end is suitable with the diameter of submersible motor axle, and the diameter of its lower end is greater than the diameter of submersible motor axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201941461U CN201821193U (en) | 2010-05-18 | 2010-05-18 | Tight sand-sealing device of submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201941461U CN201821193U (en) | 2010-05-18 | 2010-05-18 | Tight sand-sealing device of submersible motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201821193U true CN201821193U (en) | 2011-05-04 |
Family
ID=43919135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201941461U Expired - Fee Related CN201821193U (en) | 2010-05-18 | 2010-05-18 | Tight sand-sealing device of submersible motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201821193U (en) |
-
2010
- 2010-05-18 CN CN2010201941461U patent/CN201821193U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101832393B (en) | Vertical shaft centrifugal seal system | |
| CN204866224U (en) | On formula vertical centrifugal machine of unloading | |
| CN201821193U (en) | Tight sand-sealing device of submersible motor | |
| CN201944276U (en) | Output shaft oil-leakage-prevention device for speed reduction box of oil sucking machine | |
| CN101820195B (en) | Tight sand packer for submersible motor | |
| CN202942907U (en) | Conical crusher oil collecting disc seal structure | |
| CN103486232B (en) | Output shaft seal structure with direct reducer motor | |
| CN202833989U (en) | Sealing device for transmission shaft | |
| CN202338639U (en) | Main-shaft waterproof mechanism | |
| CN203641512U (en) | Sealing structure of big gear of ball grinder | |
| CN201795050U (en) | Magnetic fluid seal structure for thrust bearing of mixed-flow turbine | |
| CN201739356U (en) | Sealing structure for slewing bearing of large-scale fan | |
| CN201779147U (en) | Novel oil seal for hub bearing unit | |
| CN203962946U (en) | A kind of rotation axis seal structure of gear-box | |
| CN203082182U (en) | Vertical shaft oil baffle disc sealing assembly | |
| CN203214590U (en) | Single-direction thrust ball bearing | |
| CN107620800A (en) | Lathe gearbox main shaft sealing construction | |
| CN206478226U (en) | A kind of packaging type filling-material structure | |
| CN201363307Y (en) | Sand-leakproof sealing device | |
| CN202520951U (en) | Seal ring for motor rotor shaft | |
| CN202183673U (en) | Oil filling and draining structure for motor without shutdown | |
| CN203130524U (en) | Horizontal type blocking-free sand sucking pump | |
| CN203866794U (en) | Through-wall water seal device for bottom shaft driving steel dam gate | |
| CN201075765Y (en) | Electric machine shaft gland leak-proof oil apparatus | |
| CN202085017U (en) | Oil immersion main shaft servomotor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20130518 |