CN2329797Y - Oil-filled electric machine protector - Google Patents
Oil-filled electric machine protector Download PDFInfo
- Publication number
- CN2329797Y CN2329797Y CN 97244683 CN97244683U CN2329797Y CN 2329797 Y CN2329797 Y CN 2329797Y CN 97244683 CN97244683 CN 97244683 CN 97244683 U CN97244683 U CN 97244683U CN 2329797 Y CN2329797 Y CN 2329797Y
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- oil
- motor
- protector
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- utility
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- Expired - Fee Related
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- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The utility model belongs to the machine class, mainly relating to a motor protector, and comprising a pump body and a motor, which are positioned in a pipe bag well and communicated with an oil inlet and an oil discharge pipe; a well mouth flange is fixed to the upper end of the tube bag well. The motor protector is characterized in that one end of the protector is connected with the motor via a shaft coupler, and the other end is connected with the pump body through the shaft coupler. One side of the protector is communicated with an oil drain hole by a coupling head and an oil circuit, and the bottom end is communicated with a cylinder arranged on the well mouth flange by the coupling head and the oil circuit. The utility model has the advantages of simple structure and easy maintenance, and can increase the life time of the motor by more than one year.
Description
The utility model belongs to the hydraulic machinery class, relates generally to the submerged type motor protecter.
The submerged type motor of prior art full of liquid all has better seal, and when working under liquid, because itself produces heat, temperature raises, the expansion of liquids in the chamber, and volume increases; Temperature reduces when not working, the intracavity liquid volume-diminished.When motor slips into liquid following time, chamber pressure must be not less than motor outside liquid pressure, in case outside liquid enters motor.In addition, liquid can be revealed in the motor long-time running back cavity, because this liquid has heat radiation, important function such as lubricates motor, should in time replenish.General solution is to adopt rubbery human body now, though rubbery human body can solve above-mentioned purpose, its existence: 1, the expansion of rubbery human body is limited, in the bigger occasion of temperature variation, does not catch up with oily expansion and the spalling inefficacy.2, the liquid that is full of in the motor is insulating oil, and the ambient temperature of machine operation is higher, is generally more than 60 ℃, and the material of rubbery human body is had relatively high expectations, and is generally fluorine rubber, and therefore, cost is higher.And its working life is short, and it is unreliable to work.
The purpose of this utility model provides a kind of reliable operation, long service life, and maintaining is convenient, the oil-filled type motor protecter that cost is low.
The utility model comprises and is positioned at the pump housing, the motor that cylindric bag well is connected with filler opening and oil outlet tube; wellhead flange is fixed on the upper end of cylindric bag well; it is characterized in that protector one end is connected with motor by coupling; the other end links to each other with the pump housing by coupling; protector one side is communicated with drain oil by coupling head and oil circuit, and the bottom communicates with cylinder body on being arranged on wellhead flange by coupling head and oil circuit.
On the piston in the cylinder body of the present utility model counterweight is set.Cylinder body connects by oil cylinder seat and wellhead flange, and the pouring orifice that communicates with oil circuit is set on wellhead flange.
Oil-filled type motor protecter of the present utility model is mainly used in the dispatch high temperature crude oil, and promptly temperature is 80～85 ℃ of crude oil.Former oil pressure is 0.05MP in the cylindric bag well, and the life-span of motor has only 3 months when adopting the capsule protector, uses the life-span of the present utility model to bring up to more than 1 year.And the utility model is simple in structure, reliable operation, be easy to care and maintenance.
The utility model is described in further detail below in conjunction with accompanying drawing:
Accompanying drawing is a structural drawing of the present utility model, also is its most preferred embodiment.
Among the figure; crude oil enters the interlayer of cylindric bag well 1 from filler opening 7; enter internal layer from its bottom; exterior circumferential by motor 2 and protector 6; enter pump 9 bottom suction ports, because motor 2 connects by coupling 3 and protector 6, protector 6 links to each other with pump 9 by coupling 8 again; so crude oil increases energy through the pump 9 that motor 2 drives, and discharges along oil outlet tube 17.Because motor 1 produces heat in the course of the work, temperature raises, and motor cavity pressure increases, and its pressure passes in the cylinder block 14 by oil circuit 5, and when pressure that this pressure produces on piston 13 greater than counterweight 15, piston 13 rises, and realizes oily expansion.Oil leakage in temperature reduction or protector 6 and motor 2, piston 13 descends under the effect of counterweight 15, realizes the contraction and the repairing of oil.Because counterweight 15 acts on the piston 13 all the time; make the oil in motor 2 and the protector 6 remain certain pressure; and make its pressure greater than motor 2 outsides; enter the time of motor 2 with regard to the mixture that has delayed motor 2 oil outer, water like this; thereby protected motor, prolonged motor working life.Protector 6 bottoms are connected with oil circuit 5 by coupling head 4, and top one side communicates with oil circuit 19 and drain oil 18 by Connecting jont 20.Hydraulic fluid leak in cylinder body 14 and protector 6 is more, and the oil hole 11 that also can be arranged on by communicating with oil circuit 5 on the wellhead flange 10 replenishes hydraulic oil.Hydraulic oil expanded by heating in system in the time of can not splendid attire in the cylinder body, can be emitted by drain oil 18.Cylinder body 14 is connected on the wellhead flange 10 by oil cylinder seat 12, and oil cylinder cover 16 is installed in the upper end of cylinder body 14, because oil cylinder is arranged on the outside, so the utility model is convenient to care and maintenance.
Claims (3)
1; a kind of oil-filled type motor protecter; comprise and be positioned at the pump housing (9) that cylindric bag well (1) is connected with filler opening (7) and oil outlet tube (17); motor (2); wellhead flange (10) is fixed on the upper end of cylindric bag well (1); it is characterized in that protector (6) one ends are connected with motor (2) by coupling (3); the other end links to each other with the pump housing (9) by coupling (8); protector (6) one sides are communicated with drain oil (18) by coupling head (20) and oil circuit (19), and the bottom communicates with cylinder body (14) on being arranged on wellhead flange (10) by coupling head (4) and oil circuit (5).
2, oil-filled type motor protecter according to claim 1 is characterized in that on the piston (13) in the cylinder body (14) counterweight (15) being set.
3, oil-filled type motor protecter according to claim 1 is characterized in that cylinder body (14) connects by oil cylinder seat (12) and wellhead flange (10), goes up at wellhead flange (10) pouring orifice (11) that communicates with oil circuit (5) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97244683 CN2329797Y (en) | 1997-10-30 | 1997-10-30 | Oil-filled electric machine protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97244683 CN2329797Y (en) | 1997-10-30 | 1997-10-30 | Oil-filled electric machine protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2329797Y true CN2329797Y (en) | 1999-07-21 |
Family
ID=33953326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97244683 Expired - Fee Related CN2329797Y (en) | 1997-10-30 | 1997-10-30 | Oil-filled electric machine protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2329797Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953168A (en) * | 2018-07-03 | 2018-12-07 | 浙江融乐环境科技有限公司 | A kind of pump housing of Submersible Pump |
-
1997
- 1997-10-30 CN CN 97244683 patent/CN2329797Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953168A (en) * | 2018-07-03 | 2018-12-07 | 浙江融乐环境科技有限公司 | A kind of pump housing of Submersible Pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CU03 | Correction of utility model patent gazette |
Correction item: Inventor Correct: Cao Pigang|Lu Shuli|Han Keshui|Cui Feng False: Cao Pina|Lu Shuli|Han Keshui|Cui Feng Number: 29 Volume: 15 |
|
| ERR | Gazette correction |
Free format text: CORRECT: INVENTOR; FROM: CAO PINA LU SHU-LI HAN KESHUI CUI FENG TO: CAO PIGANG LU SHU-LI HAN KESHUICUI FENG |
|
| 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 |