CN203130533U - Submersible sewage pump - Google Patents
Submersible sewage pump Download PDFInfo
- Publication number
- CN203130533U CN203130533U CN 201320164457 CN201320164457U CN203130533U CN 203130533 U CN203130533 U CN 203130533U CN 201320164457 CN201320164457 CN 201320164457 CN 201320164457 U CN201320164457 U CN 201320164457U CN 203130533 U CN203130533 U CN 203130533U
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- CN
- China
- Prior art keywords
- motor
- mechanical seal
- bearing
- impeller
- sand discharging
- 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
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Abstract
The utility model provides a submersible sewage pump and belongs to the technical field of machinery. The submersible sewage pump solves the problem that the existing submersible sewage pump is poor in sealing performance, not wide in application range and the like. The submersible sewage pump comprises a motor, an impeller and a pump body. A rear bearing is fixed at the rear end of the motor, a front bearing is fixed at the front end of the motor, a rotary shaft of the motor penetrates through the rear bearing and the front bearing, and the front end of the rotary shaft extends into the pump body to be fixedly connected with the impeller. A stator coil is fixed in a cavity of the motor, and the cavity of the motor is full of clean water. The stator coil is formed by winding a copper wire with a water-proof nylon sheath. A first mechanical seal and a second mechanical seal arranged between the rear bearing and the front bearing are fixedly connected on the rotary shaft of the motor, the first mechanical seal is pressed on the rear bearing, the second mechanical seal is pressed on the front bearing, and a third mechanical seal arranged between the front bearing and the impeller is fixedly connected on the rotary shaft of the motor. The submersible sewage pump has the advantage of being good in sealing performance, wide in application range and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of water pump, particularly a kind of proof submersible sand discharging pump.
Background technique
At present domestic proof submersible sand discharging pump staor winding adopts water-cooled quite general, and the specific heat of liquid, thermal conductivity ratio gas are big, so the heat dissipation potential of water-cooled is good.Remarkable by water-cooled parts cooling effect, electromagnetic load allowed to bear increases, and has improved the utilization ratio of material.But bearing fixed seal ring externally only in the rotating shaft two ends of motor places in the existing proof submersible sand discharging pump, poor sealing like this, the problem that the two bearings place can be leaked by influence of hydraulic pressure easily, thereby cause the danger of short circuit or electric leakage, motor lost efficacy easily, the poor sealing that also has the stator coil of motor, also cause motor to lose efficacy easily, the outer surface of present proof submersible sand discharging pump all has acute angle and right angle in addition, the easy like this discharge that tapers off to a point makes proof submersible sand discharging pump can not be applicable to that the dell ponding that contains methane gas carries out draining.
Summary of the invention
The purpose of this utility model is at the above-mentioned problems in the prior art, and a kind of proof submersible sand discharging pump of good airproof performance is provided.
The purpose of this utility model can realize by following technical proposal: a kind of proof submersible sand discharging pump, comprise motor, impeller and the pump housing, fixedly there is rear bearing the rear end of described motor, the front end of motor fixedly has fore bearing, the front end that rear bearing and fore bearing and rotating shaft are passed in the rotating shaft of described motor stretches into the pump housing and is connected mutually with impeller, fixedly have in the chamber of described motor in the chamber of stator coil and motor and fill clear water, it is characterized in that, described stator coil is entwined by waterproof nylon sheath copper cash, be fixed with first mechanical seal and second mechanical seal between rear bearing and fore bearing in the rotating shaft of described motor, described first mechanical seal is pressed in rear bearing, described second mechanical seal is pressed in fore bearing, also is fixed with the 3rd mechanical seal between fore bearing and impeller in the rotating shaft of described motor.
The stator coil of motor is entwined by waterproof nylon sheath copper cash in this proof submersible sand discharging pump, the good waterproof performance of stator coil like this, this proof submersible sand discharging pump is by first mechanical seal in addition, rear bearing and fore bearing and clear water sealed separation are come in second mechanical seal and the 3rd mechanical seal, rear bearing and fore bearing place good airproof performance, therefore the impurity in sewage or the sewage can not enter in the chamber of motor, clear water in the motor chamber incrustation scale and sewage dirt can not occur, the water route can not stopped up, stator coil can local superheating not burn, certainly clear water not only can play good cooling action to motor in the motor chamber, can also flood at once that the motor accident is burnt (for example three phase mains lacks a phase) and the spark that produces, this proof submersible sand discharging pump has higher Security.
In above-mentioned a kind of proof submersible sand discharging pump, between described fore bearing and the 3rd mechanical seal thrust ball bearing is arranged fixedly.Thrust ball bearing can bear the axial force of this proof submersible sand discharging pump, has prolonged the working life of this proof submersible sand discharging pump.
In above-mentioned a kind of proof submersible sand discharging pump, the bending place of the outer surface of described motor and the outer surface of the pump housing is fillet.Can avoid point discharge like this, the dell ponding that makes this proof submersible sand discharging pump to be applicable to contain methane gas carries out draining.
Compared with prior art, the good airproof performance of this proof submersible sand discharging pump, long service life, in addition fillet the Safety performance that has improved this proof submersible sand discharging pump is set, make this proof submersible sand discharging pump applied widely.
Description of drawings
Fig. 1 is this submersible sewage pump structure cross-sectional schematic.
Among the figure, 1, motor; 2, impeller; 3, the pump housing; 4, rear bearing; 5, fore bearing; 6, rotating shaft; 7, stator coil; 8, clear water; 9, first mechanical seal; 10, second mechanical seal; 11, the 3rd mechanical seal; 12, thrust ball bearing; 13, fillet.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this proof submersible sand discharging pump comprises motor 1, impeller 2 and the pump housing 3, fixedly there is rear bearing 4 rear end of motor 1, the front end of motor 1 fixedly has fore bearing 5, the front end that rear bearing 4 and fore bearing 5 and rotating shaft 6 are passed in the rotating shaft 6 of motor 1 stretches into the pump housing 3 and is connected mutually with impeller 2, fixedly have in the chamber of motor 1 in the chamber of stator coil 7 and motor 1 and fill clear water 8, stator coil 7 is entwined by waterproof nylon sheath copper cash, be fixed with first mechanical seal 9 and second mechanical seal 10 between rear bearing 4 and fore bearing 5 in the rotating shaft 6 of motor 1, first mechanical seal 9 is pressed in rear bearing 4, second mechanical seal 10 is pressed in fore bearing 5, also is fixed with the 3rd mechanical seal 11 between fore bearing 5 and impeller 2 in the rotating shaft 6 of motor 1.In order to increase the service life, between fore bearing 5 and the 3rd mechanical seal 11 thrust ball bearing 12 that can bear this proof submersible sand discharging pump axial force is arranged fixedly.
The stator coil 7 of motor 1 is entwined by waterproof nylon sheath copper cash in this proof submersible sand discharging pump, the good waterproof performance of stator coil 7 like this, this proof submersible sand discharging pump is by first mechanical seal 9 in addition, second mechanical seal 10 and the 3rd mechanical seal 11 are come rear bearing 4 and fore bearing 5 with clear water 8 sealed separation, rear bearing 4 and fore bearing 5 place's good airproof performances, therefore the impurity in sewage or the sewage can not enter in the chamber of motor 1, clear water 8 in motor 1 chamber incrustation scale and sewage dirt can not occur, the water route can not stopped up, stator coil 7 can local superheating not burn, certainly clear water 8 not only can play good cooling action to motor 1 in motor 1 chamber, can also flood at once that motor 1 accident is burnt (for example three phase mains lacks a phase) and the spark that produces, this proof submersible sand discharging pump has higher Security.For fear of point discharge, the bending place of the outer surface of the outer surface of motor 1 and the pump housing 3 is fillet 13, and this sample proof submersible sand discharging pump is applicable to that mine oozes out phreatic discharging, can also be applicable to that the dell ponding of methane gas carries out draining in addition.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as motor 1, impeller 2, the pump housing 3, rear bearing 4, fore bearing 5, rotating shaft 6, stator coil 7, clear water 8, first mechanical seal 9, second mechanical seal 10, the 3rd mechanical seal 11, thrust ball bearing 12, fillet 13 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (3)
1. proof submersible sand discharging pump, comprise motor (1), impeller (2) and the pump housing (3), fixedly there is rear bearing (4) rear end of described motor (1), the front end of motor (1) fixedly has fore bearing (5), the front end that rear bearing (4) and fore bearing (5) and rotating shaft (6) are passed in the rotating shaft (6) of described motor (1) stretches into the pump housing (3) and is connected mutually with impeller (2), fixedly have in the chamber of described motor (1) in the chamber of stator coil (7) and motor (1) and fill clear water (8), it is characterized in that, described stator coil (7) is entwined by waterproof nylon sheath copper cash, be fixed with first mechanical seal (9) and second mechanical seal (10) that are positioned between rear bearing (4) and the fore bearing (5) in the rotating shaft (6) of described motor (1), described first mechanical seal (9) is pressed in rear bearing (4), described second mechanical seal (10) is pressed in fore bearing (5), also is fixed with the 3rd mechanical seal (11) that is positioned between fore bearing (5) and the impeller (2) in the rotating shaft (6) of described motor (1).
2. a kind of proof submersible sand discharging pump according to claim 1 is characterized in that, between described fore bearing (5) and the 3rd mechanical seal (11) thrust ball bearing (12) is arranged fixedly.
3. a kind of proof submersible sand discharging pump according to claim 1 and 2 is characterized in that, the bending place of the outer surface of the outer surface of described motor (1) and the pump housing (3) is fillet (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320164457 CN203130533U (en) | 2013-03-22 | 2013-03-22 | Submersible sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320164457 CN203130533U (en) | 2013-03-22 | 2013-03-22 | Submersible sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130533U true CN203130533U (en) | 2013-08-14 |
Family
ID=48938515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320164457 Expired - Fee Related CN203130533U (en) | 2013-03-22 | 2013-03-22 | Submersible sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130533U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI678469B (en) * | 2018-10-05 | 2019-12-01 | 吳昆南 | Submersible pump motor shaft and shaft bearing device of pump shaft |
| CN115071937A (en) * | 2022-07-06 | 2022-09-20 | 湘潭大学 | Underwater driving device without bearing |
-
2013
- 2013-03-22 CN CN 201320164457 patent/CN203130533U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI678469B (en) * | 2018-10-05 | 2019-12-01 | 吳昆南 | Submersible pump motor shaft and shaft bearing device of pump shaft |
| CN115071937A (en) * | 2022-07-06 | 2022-09-20 | 湘潭大学 | Underwater driving device without bearing |
| CN115071937B (en) * | 2022-07-06 | 2024-04-02 | 湘潭大学 | Bearingless underwater driving device |
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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: 20130814 Termination date: 20140322 |