CN105545793A - Plane thrust bearing structure for high-temperature electric submersible pump - Google Patents
Plane thrust bearing structure for high-temperature electric submersible pump Download PDFInfo
- Publication number
- CN105545793A CN105545793A CN201610065683.8A CN201610065683A CN105545793A CN 105545793 A CN105545793 A CN 105545793A CN 201610065683 A CN201610065683 A CN 201610065683A CN 105545793 A CN105545793 A CN 105545793A
- Authority
- CN
- China
- Prior art keywords
- electric pump
- submersible electric
- plate
- temperature submersible
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0462—Bearing cartridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sliding-Contact Bearings (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a plane thrust bearing structure for a high-temperature electric submersible pump. A hollow main shaft of the high-temperature electric submersible pump is fixedly sleeved with a movable plate protecting shell, and a movable plate is inlaid in the movable plate protecting shell and is contract-free with the hollow main shaft of the high-temperature electric submersible pump. A static plate is fixedly mounted on a high-temperature electric submersible pump shell. The movable plate and the static plate are both made of YG20C tungsten-cobalt alloy, and the movable plate protecting shell is made of 4J42 iron-nickel alloy. The movable plate and the static plate are paired to form a friction pair, the static friction coefficient of the friction pair is 0.05, and the dynamic friction coefficient of the friction pair is 0.029-0.12. An oil throwing hole is formed in the hollow main shaft of the high-temperature electric submersible pump corresponding to the friction pair, and lubricating oil is thrown to the friction pair through the oil throwing hole. A gasket is additionally mounted between the static plate and the high-temperature electric submersible pump shell and is made of soft metal. An oil storage space is formed in the upper part of the movable plate protecting shell, and the hollow main shaft of the high-temperature electric submersible pump positioned in the oil storage space is sleeved with a main shaft protection tube and is isolated from the lubricating oil in the oil storage space through the main shaft protection tube.
Description
Technical field
The invention belongs to high-temperature submersible electric pump technical field, particularly relate to a kind of high-temperature submersible electric pump plane thrust bearing structure.
Background technique
In conventional submersible electric pump, plane thrust bearing failure accounts for more than 57% of submersible electric pump rate of fault, returns its reason to be all caused by lubrication failure.In some the actual used plane thrust bearings found out, find all can be ground with a lot of groove mark on the quiet plate surface of plane thrust bearing, some groove mark degree of depth can reach about 3mm, this explanation is isolated without oil film between the dynamic plate and quiet plate of plane thrust bearing, dynamic directly carry out surface between plate and quiet plate and dry grind, and the frictional heat that surperficial dry grinding causes can make plate bonding with the surface of quiet plate, be engaged and peel off.
Find after technician studies above-mentioned phenomenon, what the quiet plate material due to plane thrust bearing adopted is tin bronze, what dynamic plate material adopted is the Bearing Steel refined through quenching, when temperature reaches after more than 110 DEG C, the quiet plate wear resistance of tin bronze material will seriously be deteriorated, and dynamic oil film between plate and quiet plate is also more subject to destruction rubbing under high temperature.
Therefore, must improve existing plane thrust bearing structure, make it possess high temperature resistant, anti abrasive ability, extend its working life, and then reduce submersible electric pump rate of fault.
Summary of the invention
For prior art Problems existing, the invention provides a kind of high-temperature submersible electric pump plane thrust bearing structure, plane thrust bearing is possessed high temperature resistant, anti abrasive ability, working life extends, and reduces the rate of fault of submersible electric pump simultaneously.
To achieve these goals, the present invention adopts following technological scheme: a kind of high-temperature submersible electric pump plane thrust bearing structure, comprise dynamic plate and quiet plate, be characterized in: on high-temperature submersible electric pump hollow spindle, fixed cover is equipped with dynamic plate containment vessel, described dynamic plate is embedded in dynamic plate containment vessel, and dynamic contactless between plate and high-temperature submersible electric pump hollow spindle; Described quiet plate is fixedly mounted on high-temperature submersible electric pump housing; The material of described dynamic plate and quiet plate is the tungsten-cobalt alloy of YG20C.
The material of described dynamic plate containment vessel is the iron-nickel alloy of 4J42.
Between described dynamic plate and quiet plate, pairing forms friction pair, and in friction, vice division chief lubricates, and the static friction coefficient of friction pair is 0.05, and the coefficient of kinetic friction of friction pair is 0.029 ~ 0.12.
The high-temperature submersible electric pump hollow spindle that described friction pair is corresponding offers and gets rid of oilhole, lubricant oil gets rid of to friction pair by getting rid of oilhole.
Between described dynamic plate containment vessel and high-temperature submersible electric pump hollow spindle, be provided with flat key, high-temperature submersible electric pump hollow spindle is by the extremely dynamic plate containment vessel of flat key transmitting torque and dynamic plate.
Between described quiet plate and high-temperature submersible electric pump housing, add pad, pad adopts soft metal.
Described dynamic plate containment vessel top is oil storage space, and the high-temperature submersible electric pump hollow spindle being positioned at oil storage space is set with main shaft pillar, and high-temperature submersible electric pump hollow spindle is isolated by the lubricant oil in main shaft pillar and oil storage space.
Beneficial effect of the present invention:
Compared with prior art, plane thrust bearing is possessed high temperature resistant, anti abrasive ability, working life extends, and reduces the rate of fault of submersible electric pump simultaneously in the present invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of high-temperature submersible electric pump plane thrust bearing structure of the present invention;
In figure, 1-dynamic plate, 2-quiet plate, 3-high-temperature submersible electric pump hollow spindle, 4-dynamic plate containment vessel, 5-high-temperature submersible electric pump housing, 6-friction pair, 7-flat key, 8-pad, 9-get rid of oilhole, 10-oil storage space, 11-main shaft pillar.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, a kind of high-temperature submersible electric pump plane thrust bearing structure, comprise dynamic plate 1 and quiet plate 2, on high-temperature submersible electric pump hollow spindle 3, fixed cover is equipped with dynamic plate containment vessel 4, described dynamic plate 1 is embedded in dynamic plate containment vessel 4, and dynamic contactless between plate 1 and high-temperature submersible electric pump hollow spindle 3; Described quiet plate 2 is fixedly mounted on high-temperature submersible electric pump housing 5; The material of described dynamic plate 1 and quiet plate 2 is the tungsten-cobalt alloy of YG20C.For YG20C tungsten-cobalt alloy, it has the good characteristic of high hardness, high wear resistance, and technology temperature is 500 DEG C time, and the hardness of YG20C tungsten-cobalt alloy and wear resistance also can not change.Because the Toughness Ratio Bearing Steel of YG20C tungsten-cobalt alloy is a bit weaker, in order at utmost avoid dynamic plate 1 broken, dynamic plate 1 has been embedded in dynamic plate containment vessel 4.
The material of described dynamic plate containment vessel 4 is the iron-nickel alloy of 4J42.For 4J42 iron-nickel alloy, it has the expansion coefficient close with YG20C tungsten-cobalt alloy, is a kind of fabulous insert material, effectively can ensure that dynamic plate 1 does not come off after insert not broken.
Between described dynamic plate 1 and quiet plate 2, pairing forms friction pair 6, and at friction pair 6, place lubricates, and the static friction coefficient of friction pair 6 is 0.05, and the coefficient of kinetic friction of friction pair 6 is 0.029 ~ 0.12.In the fabrication process, by lappingout polishing, the roughness grade of plate 1 and quiet plate 2 can be made to bring up to minute surface level, and friction factor can be less, and make frictional heat lower.
The high-temperature submersible electric pump hollow spindle 3 of described friction pair 6 correspondence offers and gets rid of oilhole 9, lubricant oil gets rid of to friction pair 6 by getting rid of oilhole 9.Lubricant oil, under centrifugal action, can constantly throw away to friction pair 6 from getting rid of oilhole 9, thus effectively increases the flow of lubrication in friction pair 6, improves lubrication and radiating effect further.
Between described dynamic plate containment vessel 4 and high-temperature submersible electric pump hollow spindle 3, be provided with flat key 7, high-temperature submersible electric pump hollow spindle 3 is by the extremely dynamic plate containment vessel 4 of flat key 7 transmitting torque and dynamic plate 1.In dynamic plate containment vessel 4 and dynamic plate 1 rotation process, the stress that effectively prevent dynamic plate 1 is concentrated.
Between described quiet plate 2 and high-temperature submersible electric pump housing 5, add pad 8, pad 8 adopts soft metal.Pad 8, for red copper pad, can effectively alleviate and alleviate by red copper pad the rigid impact that quiet plate 2 is subject to.
Described dynamic plate containment vessel 4 top is oil storage space 10, and the high-temperature submersible electric pump hollow spindle 3 being positioned at oil storage space 10 is set with main shaft pillar 11, and high-temperature submersible electric pump hollow spindle 3 is isolated with the lubricant oil in oil storage space 10 by main shaft pillar 11.By the lubricant oil of convection circulation in oil storage space 10, radiating effect can be made better, by main shaft pillar 11, high-temperature submersible electric pump hollow spindle 3 and the lubricant oil in oil storage space 10 are kept apart simultaneously, avoid most lubricant oil by high-temperature submersible electric pump hollow spindle 3 driven rotary, effectively eliminate and stir heat.
Below in conjunction with accompanying drawing, one-off process of the present invention is described:
First; high-temperature submersible electric pump hollow spindle 3 rotates and drives dynamic plate containment vessel 4 to rotate; and then drive dynamic plate 1 together to rotate; be subject to the viscosity of lubricant oil and the effect of quiet plate 2 surface grooves; the oil film with certain bearing capacity can be formed in friction pair 6 between dynamic plate 1 and quiet plate 2; and rotating speed is higher and the viscosity of lubricant oil is larger time, then the thickness of oil film is also just also large, and now greasy property is better.Meanwhile, the lubricant oil in high-temperature submersible electric pump hollow spindle 3, under centrifugal action, can constantly throw away to friction pair 6 from getting rid of oilhole 9, thus effectively increases the flow of lubrication in friction pair 6, improves lubrication and radiating effect further.
Time under static state, lubricant oil in friction pair 6 can be forced out under gravity, move oxidized layer and adsorption layer between plate 1 and the surface of quiet plate 2 to separate, therefore, moment is started at high-temperature submersible electric pump, dynamic starting friction power between plate 1 and quiet plate 2 is in maximum value, and this Frotteurism is called as boundary friction.
When the rotating speed of dynamic plate 1 reaches normal speed, due to the viscous effect of adsorption layer and lubricant oil, lubricant oil can drive and enter in friction pair 6 by passive plate 1, so the oil slick thickness in friction pair 6 can increase, make to change liquid friction into by half-dried boundary friction between plate 1 and quiet plate 2, pressure in oil film also can raise, and realizes the favourable operating conditions under liquid friction.
Scheme in embodiment is also not used to limit scope of patent protection of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and is all contained in the scope of the claims of this case.
Claims (7)
1. a high-temperature submersible electric pump plane thrust bearing structure, comprise dynamic plate and quiet plate, it is characterized in that: on high-temperature submersible electric pump hollow spindle, fixed cover is equipped with dynamic plate containment vessel, described dynamic plate is embedded in dynamic plate containment vessel, and dynamic contactless between plate and high-temperature submersible electric pump hollow spindle; Described quiet plate is fixedly mounted on high-temperature submersible electric pump housing; The material of described dynamic plate and quiet plate is the tungsten-cobalt alloy of YG20C.
2. a kind of high-temperature submersible electric pump plane thrust bearing structure according to claim 1, is characterized in that: the material of described dynamic plate containment vessel is the iron-nickel alloy of 4J42.
3. a kind of high-temperature submersible electric pump plane thrust bearing structure according to claim 1, it is characterized in that: between described dynamic plate and quiet plate, pairing forms friction pair, in friction, vice division chief lubricates, and the static friction coefficient of friction pair is 0.05, and the coefficient of kinetic friction of friction pair is 0.029 ~ 0.12.
4. a kind of high-temperature submersible electric pump plane thrust bearing structure according to claim 3, is characterized in that: the high-temperature submersible electric pump hollow spindle that described friction pair is corresponding offers and gets rid of oilhole, lubricant oil gets rid of to friction pair by getting rid of oilhole.
5. a kind of high-temperature submersible electric pump plane thrust bearing structure according to claim 1; it is characterized in that: between described dynamic plate containment vessel and high-temperature submersible electric pump hollow spindle, be provided with flat key, high-temperature submersible electric pump hollow spindle is by the extremely dynamic plate containment vessel of flat key transmitting torque and dynamic plate.
6. a kind of high-temperature submersible electric pump plane thrust bearing structure according to claim 1, is characterized in that: between described quiet plate and high-temperature submersible electric pump housing, add pad, and pad adopts soft metal.
7. a kind of high-temperature submersible electric pump plane thrust bearing structure according to claim 1; it is characterized in that: described dynamic plate containment vessel top is oil storage space; the high-temperature submersible electric pump hollow spindle being positioned at oil storage space is set with main shaft pillar, and high-temperature submersible electric pump hollow spindle is isolated by the lubricant oil in main shaft pillar and oil storage space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065683.8A CN105545793B (en) | 2016-01-28 | 2016-01-28 | Plane thrust bearing structure for high-temperature electric submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065683.8A CN105545793B (en) | 2016-01-28 | 2016-01-28 | Plane thrust bearing structure for high-temperature electric submersible pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105545793A true CN105545793A (en) | 2016-05-04 |
| CN105545793B CN105545793B (en) | 2017-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610065683.8A Active CN105545793B (en) | 2016-01-28 | 2016-01-28 | Plane thrust bearing structure for high-temperature electric submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105545793B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160342A (en) * | 2016-08-23 | 2016-11-23 | 沈阳工业大学通益科技有限公司 | A kind of heat resisting motor being applicable to high-temperature submersible electric pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001220605A (en) * | 2000-02-08 | 2001-08-14 | Kubota Corp | Sliding member excellent in wear resistance |
| JP2003129166A (en) * | 2001-10-23 | 2003-05-08 | Ebara Corp | Corrosion resistant cermet and pump parts |
| CN201013645Y (en) * | 2007-03-20 | 2008-01-30 | 宋克英 | Guide bearing for oil-submersible electric pump |
| CN201202681Y (en) * | 2008-01-11 | 2009-03-04 | 天津市远强精工机械制造有限公司 | Oil-submersible electric pump inserted with oil-containing bearing |
| CN202228414U (en) * | 2011-09-23 | 2012-05-23 | 宁波精科机械密封件制造有限公司 | Sliding bearing |
| CN205371057U (en) * | 2016-01-28 | 2016-07-06 | 沈阳工业大学通益科技有限公司 | Latent oily charge pump plane of high temperature footstep bearing structure |
-
2016
- 2016-01-28 CN CN201610065683.8A patent/CN105545793B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001220605A (en) * | 2000-02-08 | 2001-08-14 | Kubota Corp | Sliding member excellent in wear resistance |
| JP2003129166A (en) * | 2001-10-23 | 2003-05-08 | Ebara Corp | Corrosion resistant cermet and pump parts |
| CN201013645Y (en) * | 2007-03-20 | 2008-01-30 | 宋克英 | Guide bearing for oil-submersible electric pump |
| CN201202681Y (en) * | 2008-01-11 | 2009-03-04 | 天津市远强精工机械制造有限公司 | Oil-submersible electric pump inserted with oil-containing bearing |
| CN202228414U (en) * | 2011-09-23 | 2012-05-23 | 宁波精科机械密封件制造有限公司 | Sliding bearing |
| CN205371057U (en) * | 2016-01-28 | 2016-07-06 | 沈阳工业大学通益科技有限公司 | Latent oily charge pump plane of high temperature footstep bearing structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160342A (en) * | 2016-08-23 | 2016-11-23 | 沈阳工业大学通益科技有限公司 | A kind of heat resisting motor being applicable to high-temperature submersible electric pump |
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| Publication number | Publication date |
|---|---|
| CN105545793B (en) | 2017-05-10 |
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