CN2572059Y - Bearing free small submerged electric pump - Google Patents
Bearing free small submerged electric pump Download PDFInfo
- Publication number
- CN2572059Y CN2572059Y CN 02257490 CN02257490U CN2572059Y CN 2572059 Y CN2572059 Y CN 2572059Y CN 02257490 CN02257490 CN 02257490 CN 02257490 U CN02257490 U CN 02257490U CN 2572059 Y CN2572059 Y CN 2572059Y
- Authority
- CN
- China
- Prior art keywords
- water
- utility
- model
- electric pump
- graphite
- 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
Abstract
The utility model relates to an improved small submerged electric pump which is designed to overcome the problems of poor durability and short service life. The utility model has the structure that an electric motor is connected with an upper pump body by a water inlet joint, and casing tubes are respectively arranged on the water inlet joint of one end of the electric motor and a bottom seat of the other end of the electric motor. A graphite shaft sleeve which is sheathed with a shaft of the electric motor is arranged in each of the casing tubes, and a scurry controlling mechanism for the shaft of the electric motor is arranged between the bottom seat and a bottom cover. The graphite shaft sleeve can replace a steel plain bearing in a water-charging type small submerged electric pump with the favorable water lubricating performance of graphite so that the utility model can achieve to well support by rotation and can avoid the defect that the plain bearing can not achieve good lubrication in water. The utility model actually does in deed that the submerged electric pump normally works under the condition of water under the water, and is cooled and lubricated by the water so that the utility model has the advantages of good stability performance and long service life.
Description
The utility model relates to a kind of submersible pump, specifically a kind of no bearing small-sized diving electric pump.
Small-sized diving electric pump is widely applicable, and requirement is big, in water pump market portion maximum.But unreasonable because of its structure, durability is relatively poor, causes the life-span generally ultrashort, brings a lot of use inconvenience to the user.Existing small-sized submersible pump is divided into three kinds of dry type, oil-filled type and Waters.The motor cavity of the small-sized submersible pump of dry type is a dry type, and winding mostly is polyester enamelled wire, and motor is a mechanical sealing, and rotary bearing is the plain bearing of steel skeleton.In the motor cavity of the small-sized submersible pump of oil-filled type is oil spill formula winding wire, and motor also is a mechanical sealing, and bearing is a plain bearing.The motor windings of above-mentioned two kinds of submersible pumps is all non-watertight, and the continuous working life of mechanical sealing is short.In case seals damaged makes water enter motor cavity, will short circuit in winding appear and the phenomenon of burning motor.
The Water small-sized diving electric pump, its motor joins with upper pump casing by the water inlet joint, and motor windings adopts the coiling of polyethylene waterproof lead, and the rotary bearing on the motor shaft also mostly is the ball type plain bearing.Owing to be full of the clear water that is used to lower the temperature in the motor cavity of this kind water pump, and plain bearing can not obtain good lubricating under this operating conditions, so shorten greatly working life.This shows that the sealed rotational that how to solve motor shaft supports problem, is the small-sized submersible pump of raising key one ring in working life.
The purpose of this utility model just provides a kind of novel no bearing small-sized diving electric pump, uses the defective that exists to overcome plain bearing in small-sized diving electric pump, thereby improves the quality and the working life of small-sized diving electric pump.
The utility model is achieved in that the motor of no bearing small-sized diving electric pump joins with upper pump casing by the water inlet joint, on the base of the water inlet joint of motor one end and the other end, be respectively equipped with sleeve pipe, the graphite bushing of socket motor shaft is housed in the sleeve pipe, between base and bottom, is provided with the motor shaft control and scurries mechanism.Because graphite has good water lubrication performance, therefore in the Water small-sized diving electric pump, can use graphite bushing to replace the steel plain bearing and be used for the support motor axle, to realize good rotational support.Owing to replaced common steel bearing, also just avoided plain bearing in water, can not realize the drawback of good lubrication.But, replacing plain bearing with graphite bushing, the play phenomenon of motor shaft can appear, and must in this device, install control for this reason additional and scurry mechanism, scurry a problem with solution, guarantee the reliable and stable operation of small-sized diving electric pump.The utility model is simple and reasonable, and simple installation is quick detachable, and importantly this product has really been accomplished to work under water not water funk, and by water cooling, water lubrication, so product stability can be good, and improve working life greatly.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
As shown in Figure 1, the utility model is the Water small-sized diving electric pump, and promptly motor joins by water inlet joint 3 and upper pump casing 2, the impeller that joins with motor shaft and guide vane etc. is housed, the upper pump casing 2 outside water outlets 1 that connect in upper pump casing 2.Motor is made up of stator and rotor.With polyethylene water cooling lead coiling staor winding, the rotor 8 at middle part also is to use polyethylene waterproof lead wound rotor winding in stator case 6.Motor shaft 7 passes from rotor 8 centers.Outstanding sleeve pipe in the oriented housing in middle part of the water inlet of stator case 6 front ends joint 3 is installed with graphite bushing 5 in the sleeve pipe.Graphite bushing 5 is socketed on the motor shaft 7.On motor shaft 7, also be socketed with oil-sealing sleeve 4, with sleeve pipe and the graphite bushing 5 on the sealing water inlet joint 3.The same with original Water small-sized diving electric pump, be stamped at an end shield of oil-sealing sleeve 4 and get rid of emery disc.Be fixed with base 15 in stator case 6 rear ends by fastening screw trip bolt, bottom 14 is fixed on the opening of base 15 by fastening screw trip bolt 13.Also be shaped on sleeve pipe outstanding in housing at the middle part of base 15, be installed with graphite bushing 9 in the sleeve pipe.Graphite bushing 9 is socketed in the afterbody of motor shaft 7.Between base 15 and bottom 14, be provided with the motor shaft control and scurry mechanism.Like this, original two common steel bearings have just been replaced by former and later two graphite bushings.
Though graphite bushing has good water lubrication performance, can satisfy the needs of motor shaft rotational support in the Water small-sized diving electric pump, but the accurate polarization that it does not but have plain bearing and is had, promptly after graphite bushing was installed, motor shaft can produce bigger axial float power when electric pump starts and move.The motor shaft control that is provided with between pump housing base and bottom is scurried mechanism and has just been solved this problem well.A kind of implementation preferably that mechanism is scurried in this control is, end at motor shaft 7 is socketed with thrust disc 10, the one side of thrust disc contacts with the end face of graphite bushing 9, center fixation at bottom 14 has round end to prop up bucking a rivet 11, thrust button seat 12 is supported on the bucking a rivet 11, and join by screw and bottom 14, being fixed with graphite annulus 16 in the inboard of thrust button seat 12, graphite annulus contacts with the another side of thrust disc 10.
Thrust disc 10 is controlled to hold out against graphite bushing 9, and the two sides of thrust disc, one side is a graphite bushing 9, one side is a graphite annulus 16, so when thrust disc 10 rotates with motor shaft 7, can live graphite bushing 9 in good water lubrication condition lower support, to overcome the axial float power of motor shaft.Thrust button 12 is supported at central point by a bucking a rivet 11, can adjust balance naturally.But thrust button seat 12 should join by a screw and bottom 14, to prevent the rotation of thrust button seat.On bottom 14, still be provided with the dewatering outlet, and by the screw shutoff that discharges water, so that change the motor cooling water.
Claims (2)
1, a kind of no bearing small-sized diving electric pump, motor joins by water inlet joint (3) and upper pump casing (2), it is characterized in that on the base (15) of the water inlet of the motor one end joint (3) and the other end, being respectively equipped with sleeve pipe, the graphite bushing (5,9) of socket motor shaft (7) is housed in the sleeve pipe, between base (15) and bottom (14), is provided with the motor shaft control and scurries mechanism.
2, no bearing small-sized diving electric pump according to claim 1, it is characterized in that it is that end at motor shaft (7) is socketed with thrust disc (10) that mechanism is scurried in described motor shaft control, the one side of thrust disc contacts with the end face of graphite bushing (9), center fixation at bottom (14) has round end to prop up bucking a rivet (11), thrust button seat (12) is supported on the bucking a rivet (11), and join by screw and bottom (14), be fixed with graphite annulus (16) in the inboard of thrust button seat (12), graphite annulus contacts with the another side of thrust disc (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257490 CN2572059Y (en) | 2002-09-28 | 2002-09-28 | Bearing free small submerged electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257490 CN2572059Y (en) | 2002-09-28 | 2002-09-28 | Bearing free small submerged electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2572059Y true CN2572059Y (en) | 2003-09-10 |
Family
ID=33725428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02257490 Expired - Fee Related CN2572059Y (en) | 2002-09-28 | 2002-09-28 | Bearing free small submerged electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2572059Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452866A (en) * | 2013-09-17 | 2013-12-18 | 合肥恒大江海泵业股份有限公司 | Submersible axial-flow pump with inbuilt impeller |
| CN106313926A (en) * | 2016-09-27 | 2017-01-11 | 清华大学 | Surface modification method for changing surface infiltration performance of impregnated graphite |
-
2002
- 2002-09-28 CN CN 02257490 patent/CN2572059Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452866A (en) * | 2013-09-17 | 2013-12-18 | 合肥恒大江海泵业股份有限公司 | Submersible axial-flow pump with inbuilt impeller |
| CN103452866B (en) * | 2013-09-17 | 2016-06-29 | 合肥恒大江海泵业股份有限公司 | A kind of submersible axial-flow pump with inbuilt impeller |
| CN106313926A (en) * | 2016-09-27 | 2017-01-11 | 清华大学 | Surface modification method for changing surface infiltration performance of impregnated graphite |
| CN106313926B (en) * | 2016-09-27 | 2019-01-29 | 清华大学 | A kind of surface modifying method changing impregnated graphite surface wettability energy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2572059Y (en) | Bearing free small submerged electric pump | |
| CN201428622Y (en) | Canned electric submersible sewage pump | |
| CN1908470A (en) | Big load planetary gear bearing support device | |
| CN2721918Y (en) | Horizontal multi-stage pump | |
| CN200940676Y (en) | Planet gear bearing support device | |
| CN201225285Y (en) | Simple single screw compressor | |
| CN2168103Y (en) | mechanical-electric pipe pump | |
| CN210468983U (en) | Motor rotor convenient to lubricate | |
| CN220687477U (en) | Coaxiality self-adjusting device of hydroelectric generator | |
| CN2371374Y (en) | Sand-prevention wear-proof oil-submersible multi-stage centrifugal pump | |
| CN201307800Y (en) | A water-filling motor bearing base mechanism of submersible pump | |
| CN219812067U (en) | Driving motor | |
| CN2924904Y (en) | Tractor special generator | |
| CN210120460U (en) | Gear box motor for ice machine | |
| CN219888285U (en) | Submersible wet full-through pump with blade adjustable structure | |
| CN216842932U (en) | Special solid coupler for belt transmission | |
| CN214506741U (en) | Water-filled cooling type submersible motor | |
| CN209671223U (en) | A kind of bearing-free motor vector pump | |
| CN211082333U (en) | Fan transmission device | |
| CN2263218Y (en) | Direct-connection type water pump with gasoline engine | |
| CN215409228U (en) | Self-lubricating high-power boiler feed pump | |
| CN215990477U (en) | Two-stage worm and worm gear box motor structure | |
| CN207989398U (en) | Pump configuration in a kind of pipe | |
| CN114658668B (en) | Submersible through-flow pump | |
| CN201236831Y (en) | Connection device of vertical submerged pump with long shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |