CN2762425Y - Submersible electric machine with oil - Google Patents
Submersible electric machine with oil Download PDFInfo
- Publication number
- CN2762425Y CN2762425Y CN 200420075019 CN200420075019U CN2762425Y CN 2762425 Y CN2762425 Y CN 2762425Y CN 200420075019 CN200420075019 CN 200420075019 CN 200420075019 U CN200420075019 U CN 200420075019U CN 2762425 Y CN2762425 Y CN 2762425Y
- Authority
- CN
- China
- Prior art keywords
- oil
- assembly
- motor
- submersible motor
- thrust bearing
- 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
- 239000003921 oil Substances 0.000 abstract description 22
- 238000005461 lubrication Methods 0.000 abstract description 4
- 239000010705 motor oil Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000010687 lubricating oil Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009183 running Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a novel oil submersible motor, which is composed of a head part assembly, a stator assembly, a rotor assembly, a base assembly and a shaft, wherein a screw propeller is arranged on the shaft of a cavity among the stator assembly, the rotor assembly and the base assembly of the novel oil submersible motor. Upward axial force can be generated by the screw propeller when the novel oil submersible motor is operated and is used for balancing the bearing force of a thrust bearing on the upper end of the novel oil submersible motor. At the same time, the circulating speed of lubricating oil in a central shaft and a stator chamber is accelerated, the circulating lubrication of motor oil is driven, the lubrication effect of the motor oil is enhanced, and thus, the bad operating state of the thrust bearing is improved. Temperature rise of the novel oil submersible motor is reduced, and thus the operation cycle of the oil submersible motor is prolonged.
Description
Technical field
The utility model relates to a kind of submersible electric machine with oil, belongs to the corollary apparatus of the submersible electric pump oil recovery of using in the oil field development.
Technical background
Submersible electric machine with oil is the vertical hanging motor, for the weight of bear rotor assembly, rotor is worked in the fixed position, and the motor upper design has thrust bearing, and effect is to bear the weight of motor shaft and rotor and the axial force that motor rotation produced.Thrust bearing is mainly formed with motion block two parts by quiet.Submersible electric machine with oil is in the operation of down-hole long term high temperature, and ambient temperature is higher simultaneously.Because thrust bearing is in motor top, the dynamo oil gravitate often is deposited in motor bottom, can not get effectively lubricating in motor operation course.Simultaneously thrust bearing also bears the gravity of up to a hundred kilograms of axle and rotors, so the condition that thrust bearing is in excess load superhigh temperature and insufficient lubrication is all the time moved.Certainly will cause after continuing for some time like this thrust bearing burn out the bonding or eccentric wear serious, finally cause motor to turn round, a whole set of electric pump unit quits work, and causes very big economic loss.According to statistics, submersible electric machine with oil faults itself reason 80% all causes owing to thrust bearing damages.From the situation of opening and inspecting of motor, the form that thrust bearing lost efficacy mainly shows as wearing and tearing.To quiet surface of thrust bearing, ring-shaped groove is generally all arranged, serious contact-making surface all weares and teares.To being cast with quiet of babbit, there is the phenomenon of babbit fusing on the other hand in serious wear on the one hand.
Summary of the invention
The purpose of this utility model is exactly the shortcoming that overcomes prior art, and a kind of novel submersible electric machine with oil is provided.
The purpose of this utility model is achieved in that novel submersible electric machine with oil is made up of head assembly, field frame assembly, rotor assembly, base assembly, axle, the cavity between Motor Stator Assembly, rotor assembly and the base assembly spool on screw is housed.
The utility model is installed screw by the bottom at motor shaft, screw can produce an axial force that makes progress when machine operation, be used for the bearing capacity of balance motor upper end thrust bearing, quickened in the central shaft simultaneously and the circulation rate of lubricating oil in the bore of stator, the circulating lubricating of pushing motor oil improves the dynamo oil lubricant effect, has improved the abominable operating state of thrust bearing, reduce electric machine temperature rise, thereby prolonged the cycle of operation of submersible electric machine with oil.
Description of drawings
Fig. 1: the utility model structural representation;
Among the figure: 1-thrust bearing motion block, quiet of 2-thrust bearing, 3-head assembly, 4-field frame assembly, 5-rotor assembly, 6-bearing, 7-axle, 8-screw, 9-base assembly;
Embodiment
As shown in Figure 1, novel submersible electric machine with oil is made up of head assembly 3, field frame assembly 4, rotor assembly 5, base assembly 9, axle 7, on the axle 7 of the cavity between Motor Stator Assembly 4, rotor assembly 5 and the base assembly 9 screw 8 is housed.
When machine operation, the screw 7 of motor lower end is driven by axle 6 and does high-speed motion, produce axial thrust to the axle upper end, offset part rotor assembly 4 weight and other axial forces, reach the purpose that alleviates thrust bearing 1 and 2 loads, improved the operation conditions of thrust bearing 1 and 2 under high temperature, high load condition.Screw 7 is in running, pushing motor oil enters motor shaft 6 centre bores to up from motor bottom, and enter into bearing 5 and thrust bearing 1 and 2 by axle 6 centre bore holes, in fricting couple piece, form oil film, dynamo oil is back to motor bottom again between each gap and field frame assembly 4 and rotor assembly 5 afterwards, realizes the lubricated and cooling of each bearing.In the process of screw 7 runnings, played the circulating lubricating process of quickening dynamo oil, satisfied needs, made bearing can rotate with the form of boundary lubrication as far as possible, otherwise damages such as scratch and bonding occur easily in the lubricated and cooling of motor upper end thrust bearing 1 and 2.
Claims (1)
1, a kind of novel submersible electric machine with oil, it is made up of head assembly (3), field frame assembly (4), rotor assembly (5), base assembly (9), axle (7), it is characterized in that: on the axle (7) of the cavity between Motor Stator Assembly (4), rotor assembly (5) and the base assembly (9) screw (8) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075019 CN2762425Y (en) | 2004-10-30 | 2004-10-30 | Submersible electric machine with oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075019 CN2762425Y (en) | 2004-10-30 | 2004-10-30 | Submersible electric machine with oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2762425Y true CN2762425Y (en) | 2006-03-01 |
Family
ID=36095540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420075019 Expired - Fee Related CN2762425Y (en) | 2004-10-30 | 2004-10-30 | Submersible electric machine with oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2762425Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113016123A (en) * | 2018-10-30 | 2021-06-22 | 尼亚布科知识产权控股有限责任公司 | Lubricant supported motor with wheel support |
-
2004
- 2004-10-30 CN CN 200420075019 patent/CN2762425Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113016123A (en) * | 2018-10-30 | 2021-06-22 | 尼亚布科知识产权控股有限责任公司 | Lubricant supported motor with wheel support |
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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 |