CN110454509A - A kind of pumping over profile shaft holds thrust disc - Google Patents
A kind of pumping over profile shaft holds thrust disc Download PDFInfo
- Publication number
- CN110454509A CN110454509A CN201910821121.5A CN201910821121A CN110454509A CN 110454509 A CN110454509 A CN 110454509A CN 201910821121 A CN201910821121 A CN 201910821121A CN 110454509 A CN110454509 A CN 110454509A
- Authority
- CN
- China
- Prior art keywords
- thrust
- thrust disc
- pumping over
- axial force
- disc
- 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.)
- Pending
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 10
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
- F16C17/08—Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention belongs to the Designing Thrust Bearing technical fields of power industry large-scale heavy duty machinery, and in particular to a kind of pumping over profile shaft holds thrust disc, can greatly improve bearing safety, especially under unilateral case of heavy load it is secondary to friction provide it is additional cooling.Thrust disc inner ring circumferentially processes a certain number of pumping over holes, and pumping over hole penetrates through main thrust watt and the secondary secondary inside oil inlet side of thrust bearing shoe valve friction.Thrust disc is installed on axis, is cooperated with main thrust watt, secondary thrust bearing shoe valve, is able to bear the axial force of both direction；When axial force is upward, axial force is born with main thrust watt and thrust disc；When axial force is downward, axial force is born with secondary thrust bearing shoe valve and thrust disc.The present invention can be realized the additional cooling secondary to friction, makes bearing stable operation in Liquid Lubrication Condition, improves bearing safety.
Description
Technical field
The invention belongs to the Designing Thrust Bearing technical fields of power industry large-scale heavy duty machinery, and in particular to a kind of pumping over
Profile shaft holds thrust disc, can greatly improve bearing safety, secondary to friction especially under unilateral case of heavy load to provide additional cooling.
Background technique
The unit main pump of Fuqing 5,6 uses three construction design of journal bearings, i.e. motor shaft top, lower part and pump shaft lower part is respectively arranged
A set of transverse bearing, motor and water pump share oil lubrication two-direction thrust bearing, are equipped with bidirectional high-pressure and jack up oil, are able to bear various
Axial hydraulic thrust, system pressure, rotor gravity under system pressure.
Bearing lubrication state includes: the grown forms such as fluid lubrication, mixed lubrication, boundary lubrication and dry friction.To guarantee
Bearing safety in operation, bearing answer stable operation in Liquid Lubrication Condition.Under the constant operating condition of sliding speed, bearing ratio is reduced
Pressure or increase lubricating oil viscosity are conducive to bearing and run on Liquid Lubrication Condition.But to guarantee unit efficiency, it can not continue to increase
Bearing size is reduced than pressure, therefore very high to the cooling requirement of bearing.Traditional design thinking mainly include increase flow of lubrication,
It improving heat exchanger power, adjusts cold source flow or temperature, these methods are both needed to change equipment or system design on a large scale,
Difficulty is larger.The present invention can change in small range and realize the additional cooling secondary to friction in the case where thrust disc design.
Summary of the invention
The purpose of the present invention is to provide a kind of pumping over profile shafts to hold thrust disc, can be realized the additional cooling secondary to friction,
Make bearing stable operation in Liquid Lubrication Condition, improves bearing safety.
In order to achieve the above objectives, the technical solution used in the present invention are as follows:
A kind of pumping over profile shaft holds thrust disc, and thrust disc inner ring circumferentially processes a certain number of pumping over holes, the perforation of pumping over hole
Main thrust watt and the secondary secondary inside oil inlet side of thrust bearing shoe valve friction.
Thrust disc is installed on axis, is cooperated with main thrust watt, secondary thrust bearing shoe valve, is able to bear the axial force of both direction；When
When axial force is upward, axial force is born with main thrust watt and thrust disc；When axial force is downward, by secondary thrust bearing shoe valve and thrust
Axial force is born in disk cooperation.
When the shaft is rotated, thrust disc synchronous rotary is driven, under the action of the centrifugal force, lubricating oil in pumping over hole is from distance axis
The proximate of rotation axis moves, and is formed and is faced upward the continuous flowing of end face from thrust disc lower end, and this phenomenon is known as purt
Send the pumping over effect in hole, it by the relatively low secondary thrust bearing shoe valve side cold oil pumping over of operating temperature to main thrust watt rub subtask
Face provides additional cooling for main thrust bearing shoe valve.
It is obtained by the present invention to have the beneficial effect that
It is designed compared to traditional thrust disc, the secondary thrust bearing shoe valve side cold oil pumping over that such thrust disc can be relatively low by operating temperature
To main thrust watt friction subtask face, additional cooling is provided, hence it is evident that reduce bearing bush temperature.
Detailed description of the invention
Fig. 1 is that pumping over profile shaft holds thrust disc schematic diagram；
Fig. 2 is operation principle schematic diagram I；
Fig. 3 is operation principle schematic diagram II；
In figure: 1, axis；2, main thrust watt；3, thrust disc；4, pumping over hole；5, secondary thrust bearing shoe valve.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of pumping over profile shaft of the present invention holds thrust disc, the non-bearing face of 3 inner ring of thrust disc is circumferentially
Process a certain number of pumping over holes 4, perforation main thrust watt 2 and secondary thrust bearing shoe valve 5 rub oil inlet side on the inside of pair.
The present invention is used cooperatively with two-direction thrust bearing, and working principle is as shown in Figure 2 and Figure 3.Thrust disc 3 is installed on axis 1
On, cooperate with main thrust watt 2, secondary thrust bearing shoe valve 5, is able to bear the axial force of both direction.When axial force is upward, by main thrust
Watts 2 bear axial force with the cooperation of thrust disc 3；When axial force is downward, from secondary thrust bearing shoe valve 5 and receiving axial force with thrust disc 3.
3 inner ring of thrust disc penetrates through main thrust watt 2 and secondary thrust bearing shoe valve 5 rubs oil inlet on the inside of pair circumferentially arranged with a certain number of pumping over holes 4
Side.
When axis 1 rotates, 3 synchronous rotary of thrust disc, under the action of the centrifugal force, the profit in the pumping over hole 4 of thrust disc 3 are driven
Lubricating oil is moved from the proximate of 1 rotation axis of distance axis, is formed and is faced upward the continuous flowing of end face from 3 lower end of thrust disc.
This phenomenon is known as the pumping over effect in pumping over hole 4, it is by the relatively low 5 side cold oil pumping over of secondary thrust bearing shoe valve of operating temperature to featured
The friction of power watt 2 subtask face, provides additional cooling for main thrust bearing shoe valve 2.
Claims (3)
1. a kind of pumping over profile shaft holds thrust disc, it is characterised in that: thrust disc inner ring circumferentially processes a certain number of pumping over holes, purt
Send hole perforation main thrust watt and the secondary secondary inside oil inlet side of thrust bearing shoe valve friction.
2. pumping over profile shaft according to claim 1 holds thrust disc, it is characterised in that: thrust disc is installed on axis, and featured
Power watt, secondary thrust bearing shoe valve cooperation, are able to bear the axial force of both direction；When axial force is upward, by main thrust watt and thrust disc
Axial force is born in cooperation；When axial force is downward, axial force is born with secondary thrust bearing shoe valve and thrust disc.
3. pumping over profile shaft according to claim 2 holds thrust disc, it is characterised in that: when the shaft is rotated, drive thrust disc same
Step rotation, under the action of the centrifugal force, lubricating oil in pumping over hole is moved from the proximate of distance axis rotation axis, formed from
Thrust disc lower end faces upward the continuous flowing of end face, and this phenomenon is known as the pumping over effect in pumping over hole, it is opposite by operating temperature
Lower pair thrust bearing shoe valve side cold oil pumping over provides additional cooling for main thrust bearing shoe valve to main thrust watt friction subtask face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821121.5A CN110454509A (en) | 2019-08-30 | 2019-08-30 | A kind of pumping over profile shaft holds thrust disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821121.5A CN110454509A (en) | 2019-08-30 | 2019-08-30 | A kind of pumping over profile shaft holds thrust disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110454509A true CN110454509A (en) | 2019-11-15 |
Family
ID=68490420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910821121.5A Pending CN110454509A (en) | 2019-08-30 | 2019-08-30 | A kind of pumping over profile shaft holds thrust disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110454509A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128246A (en) * | 2020-09-22 | 2020-12-25 | 东南大学 | Axial small-hole normal-pressure water supply dynamic-static pressure spiral groove thrust bearing |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB720358A (en) * | 1951-11-20 | 1954-12-15 | Gen Electric | Improvements in and relating to thrust bearings |
| US4348065A (en) * | 1979-07-13 | 1982-09-07 | Hitachi, Ltd. | Thrust bearing |
| EP0121053A1 (en) * | 1983-03-04 | 1984-10-10 | Hitachi, Ltd. | Axial thrust reducing device for pumps |
| SU1295059A1 (en) * | 1985-05-15 | 1987-03-07 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Атомного И Энергетического Насосостроения | Plain thrust bearing |
| JPH058048U (en) * | 1991-07-11 | 1993-02-02 | 株式会社明電舎 | Bearing cooling device |
| JP2005282692A (en) * | 2004-03-29 | 2005-10-13 | Daido Metal Co Ltd | Thrust bearing device |
| JP2006138353A (en) * | 2004-11-10 | 2006-06-01 | Toshiba Corp | Slide bearing and rotary electric machine including slide bearing |
| JP2012202449A (en) * | 2011-03-24 | 2012-10-22 | Ntn Corp | Planetary gear device |
| CN203219072U (en) * | 2013-04-28 | 2013-09-25 | 合肥恒大江海泵业股份有限公司 | Submersible motor with improved thrust bearing |
| CN204226435U (en) * | 2014-10-27 | 2015-03-25 | 杭州恩斯克万达电动转向系统有限公司 | Heat radiation bearing |
| JP2015218809A (en) * | 2014-05-16 | 2015-12-07 | 株式会社東芝 | Journal bearing |
| JP2016011698A (en) * | 2014-06-27 | 2016-01-21 | 株式会社日立製作所 | Tilting pad-type journal bearing |
| CN205639280U (en) * | 2016-05-03 | 2016-10-12 | 西安交通大学 | Slot type refrigerant dynamic pressure fluid oil -free lubrication bearing of high nip coupling is vice |
| JP6050919B1 (en) * | 2015-08-19 | 2016-12-21 | 大同メタル工業株式会社 | Vertical bearing device |
| CN106640968A (en) * | 2016-12-21 | 2017-05-10 | 湖南崇德工业科技有限公司 | Vertical type thrust sliding bearing |
| CN207349266U (en) * | 2017-10-10 | 2018-05-11 | 湖南崇德工业科技有限公司 | Plain bearing arrangement |
| CN207406529U (en) * | 2017-10-25 | 2018-05-25 | 福建福清核电有限公司 | A kind of main pump bearing chamber lubrication oil circulation circuit |
| CN211737797U (en) * | 2019-08-30 | 2020-10-23 | 福建福清核电有限公司 | Pumping type bearing thrust disc |
-
2019
- 2019-08-30 CN CN201910821121.5A patent/CN110454509A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB720358A (en) * | 1951-11-20 | 1954-12-15 | Gen Electric | Improvements in and relating to thrust bearings |
| US4348065A (en) * | 1979-07-13 | 1982-09-07 | Hitachi, Ltd. | Thrust bearing |
| EP0121053A1 (en) * | 1983-03-04 | 1984-10-10 | Hitachi, Ltd. | Axial thrust reducing device for pumps |
| SU1295059A1 (en) * | 1985-05-15 | 1987-03-07 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Атомного И Энергетического Насосостроения | Plain thrust bearing |
| JPH058048U (en) * | 1991-07-11 | 1993-02-02 | 株式会社明電舎 | Bearing cooling device |
| JP2005282692A (en) * | 2004-03-29 | 2005-10-13 | Daido Metal Co Ltd | Thrust bearing device |
| JP2006138353A (en) * | 2004-11-10 | 2006-06-01 | Toshiba Corp | Slide bearing and rotary electric machine including slide bearing |
| JP2012202449A (en) * | 2011-03-24 | 2012-10-22 | Ntn Corp | Planetary gear device |
| CN203219072U (en) * | 2013-04-28 | 2013-09-25 | 合肥恒大江海泵业股份有限公司 | Submersible motor with improved thrust bearing |
| JP2015218809A (en) * | 2014-05-16 | 2015-12-07 | 株式会社東芝 | Journal bearing |
| JP2016011698A (en) * | 2014-06-27 | 2016-01-21 | 株式会社日立製作所 | Tilting pad-type journal bearing |
| CN204226435U (en) * | 2014-10-27 | 2015-03-25 | 杭州恩斯克万达电动转向系统有限公司 | Heat radiation bearing |
| JP6050919B1 (en) * | 2015-08-19 | 2016-12-21 | 大同メタル工業株式会社 | Vertical bearing device |
| CN205639280U (en) * | 2016-05-03 | 2016-10-12 | 西安交通大学 | Slot type refrigerant dynamic pressure fluid oil -free lubrication bearing of high nip coupling is vice |
| CN106640968A (en) * | 2016-12-21 | 2017-05-10 | 湖南崇德工业科技有限公司 | Vertical type thrust sliding bearing |
| CN207349266U (en) * | 2017-10-10 | 2018-05-11 | 湖南崇德工业科技有限公司 | Plain bearing arrangement |
| CN207406529U (en) * | 2017-10-25 | 2018-05-25 | 福建福清核电有限公司 | A kind of main pump bearing chamber lubrication oil circulation circuit |
| CN211737797U (en) * | 2019-08-30 | 2020-10-23 | 福建福清核电有限公司 | Pumping type bearing thrust disc |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128246A (en) * | 2020-09-22 | 2020-12-25 | 东南大学 | Axial small-hole normal-pressure water supply dynamic-static pressure spiral groove thrust bearing |
| CN112128246B (en) * | 2020-09-22 | 2022-08-12 | 东南大学 | Axial small-hole normal-pressure water supply dynamic-static pressure spiral groove thrust bearing |
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