CN110532623A - A kind of design method of large size water lubriucated bearing tilting bush thrust bearing shoe valve - Google Patents
A kind of design method of large size water lubriucated bearing tilting bush thrust bearing shoe valve Download PDFInfo
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- CN110532623A CN110532623A CN201910697377.XA CN201910697377A CN110532623A CN 110532623 A CN110532623 A CN 110532623A CN 201910697377 A CN201910697377 A CN 201910697377A CN 110532623 A CN110532623 A CN 110532623A
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- thrust bearing
- shoe valve
- bearing
- film thickness
- tile fragment
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- 238000013461 design Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000012634 fragment Substances 0.000 claims abstract description 35
- 238000009434 installation Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a kind of design methods of large-scale water lubriucated bearing tilting bush thrust bearing shoe valve, are related to thrust bearing shoe valve technical field, comprising the following steps: A: establishing model, B: tile fragment quantity is determined, C: it determines oil film thickness, D: determining position and the height of tile fragment, E: determine water film thickness.The present invention facilitates the design of thrust bearing shoe valve by establishing model, convenient for operating and analyzing, ensure the accuracy of thrust bearing shoe valve design simultaneously, it load is born to thrust bearing calculates by the way that position to tile fragment and height are convenient, preventing thrust bearing from bearing, load is excessive to find out bending or fracture, oil film thickness, which is avoided, by the calculating to oil film thickness does not reach ideal thickness, it causes bearing friction loss and causes burning accident, increase the service life of bearing thrust watt, the lubrication model of Commonly Used Size ladder watt Hydrodynamic Thrust Bearings, analyze the structure size of ladder watt thrust bearing, operating condition is to bearing load carrying capacity.
Description
Technical field
The present invention relates to thrust bearing shoe valve technical field, in particular to a kind of design of large-scale water lubriucated bearing tilting bush thrust bearing shoe valve
Method.
Background technique
Thrust bearing shoe valve, also referred to as thrust bearing are the axial thrusts for balancing rotor.The dead point for establishing rotor expansion, from
And guarantee the axial gap between static pieces in scope of design.Thrust bearing shoe valve is widely used in steam turbine, the hydraulic turbine, water pump etc..With
And the processing and the attrition process of old runner plate of hydraulic generator mirror plate.The material that thrust bearing shoe valve uses: steel billet+babbit is (also referred to as
For coal), 110 degree or so fusings can be reached in axis temperature with coal, increase the displacement space of big axis, so that big axis be protected to prevent
Big axis causes greatly the dry friction of thrust bearing shoe valve because of axial displacement.Followed by tin bronze, also steel billet+fluoroplastics (this material friction
Coefficient is small, be suitble to temperature it is higher, do not need to watt carry out a scraping, will not due to oil-break tile kilning) etc..But existing thrust bearing shoe valve
Design it is excessively complicated, while the service life of bearing thrust watt is not satisfactory.
Therefore, inventing a kind of design method of large-scale water lubriucated bearing tilting bush thrust bearing shoe valve, have very much must to solve the above problems
It wants.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of design method of large-scale water lubriucated bearing tilting bush thrust bearing shoe valve,
The design for solving existing thrust bearing shoe valve is excessively complicated, while the not satisfactory problem of service life of bearing thrust watt.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: it is a kind of large size water lubriucated bearing tilting bush push away
The design method of power watt, comprising the following steps:
A: it establishes model: establishing design analysis model, thrust bearing shoe valve is designed by establishing thickness model, it is ensured that thrust bearing shoe valve
The accuracy of design；
B: it determines tile fragment quantity: determining the inside/outside diameter size of thrust bearing according to the operating condition of thrust bearing and installation dimension,
Thrust pad quantity is determined according to the inside/outside diameter size of thrust bearing；
C: determine oil film thickness: the roughness of runner plate, bearing friction loss, pair oil film thickness be changed, prevent runner plate broken
Bad oil film, causes burning accident；
D: position and the height of tile fragment are determined: calculates position and the size of tile fragment surface step, passes through the position of tile fragment surface step
It sets and size carries out calculating thrust bearing receiving load；
E: water film thickness is determined: the initial water film thickness of thrust bearing.
Optionally, the dummy model drawn in the step A by mapping software, or the mock-up made, in reality
In the design work of border, convenient for operation and easy analysis, generally dummy model.
Optionally, 2-3 times having a size of internal diameter of the bearing outside diameter in the step B, tile fragment quantity depend on bearing bore diameter,
The condition that tile fragment number need to meet is that tile fragment breadth length ratio is not less than 1.
Optionally, thrust bearing shoe valve oil film thickness is generally 0.03 between 0.07mm in the step C, the flatness of thrust bearing shoe valve
It is close with the flatness of runner plate, if the flatness of runner plate and thrust bearing shoe valve is bad, deviation has been more than that minimum oil film is thick
Degree, can destroy thrust bearing shoe valve and mirror pull between the oil film established.
Optionally, tile fragment surface step position is determined by the breadth length ratio of tile fragment in the step D, tile fragment ladder height according to
Water film thickness when operation determines.
Optionally, water film thickness is calculated by operating condition and scale cun and is obtained in the step E.
(3) beneficial effect
The present invention provides a kind of design method of large-scale water lubriucated bearing tilting bush thrust bearing shoe valve, have it is following the utility model has the advantages that
(1), the present invention facilitates the design of thrust bearing shoe valve by establishing model, convenient for operation and analysis, while ensuring that thrust bearing shoe valve is set
The accuracy of meter is born load to thrust bearing and is calculated, prevents thrust bearing by the way that position to tile fragment and height are convenient
It bears that load is excessive finds out bending or fracture, oil film thickness is avoided by the calculating to oil film thickness and does not reach ideal thick
Degree, causes bearing friction loss and causes burning accident, increases the service life of bearing thrust watt, and Commonly Used Size ladder watt is dynamic
The lubrication model of pressure thrust bearing, the structure size for analyzing ladder watt thrust bearing, operating condition are to bearing load carrying capacity, moisture film
The influence method of rigidity, bearing the water lubriucated bearing of identical size, load is bigger, the service life is longer.
(2), present invention process is simple, and equipment requirement is low, strong operability, has good society generalization application.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
A kind of design method of large size water lubriucated bearing tilting bush thrust bearing shoe valve, comprising the following steps:
A: it establishes model: establishing design analysis model, thrust bearing shoe valve is designed by establishing thickness model, it is ensured that thrust bearing shoe valve
The accuracy of design, the dummy model drawn by mapping software, or the mock-up made, in the actual design work,
Convenient for operation and easy analysis, generally dummy model；
B: it determines tile fragment quantity: determining the inside/outside diameter size of thrust bearing according to the operating condition of thrust bearing and installation dimension,
Thrust pad quantity is determined according to the inside/outside diameter size of thrust bearing, and 2-3 times having a size of internal diameter of bearing outside diameter, tile fragment quantity takes
Certainly in bearing bore diameter, the condition that tile fragment number need to meet is that tile fragment breadth length ratio is not less than 1；
C: determine oil film thickness: the roughness of runner plate, bearing friction loss, pair oil film thickness be changed, prevent runner plate broken
Bad oil film, causes burning accident, and thrust bearing shoe valve oil film thickness is generally 0.03 between 0.07mm, the flatness and runner plate of thrust bearing shoe valve
Flatness it is close, if the flatness of runner plate and thrust bearing shoe valve is bad, deviation has been more than minimum oil film thickness, can be broken
Bad thrust bearing shoe valve and mirror pull between the oil film established；
D: position and the height of tile fragment are determined: calculates position and the size of tile fragment surface step, passes through the position of tile fragment surface step
It sets and size carries out calculating thrust bearing receiving load, tile fragment surface step position is determined by the breadth length ratio of tile fragment, tile fragment ladder
Water film thickness when height is according to operation determines；
E: determine water film thickness: the initial water film thickness of thrust bearing, water film thickness are calculated by operating condition and scale cun and are obtained.
In summary: facilitating the design of thrust bearing shoe valve by establishing model, convenient for operation and analysis, while ensuring thrust bearing shoe valve
The accuracy of design is born load to thrust bearing and is calculated, prevents thrust axis by the way that position to tile fragment and height are convenient
It bears that load is excessive finds out bending or fracture, oil film thickness is avoided by the calculating to oil film thickness and does not reach ideal thick
Degree, causes bearing friction loss and causes burning accident, increases the service life of bearing thrust watt, and Commonly Used Size ladder watt is dynamic
The lubrication model of pressure thrust bearing, the structure size for analyzing ladder watt thrust bearing, operating condition are to bearing load carrying capacity, moisture film
The influence method of rigidity, bearing the water lubriucated bearing of identical size, load is bigger, the service life is longer, and simple process, equipment is wanted
Ask low, strong operability has good society generalization application.
It should be noted that in the present invention unless specifically defined or limited otherwise, fisrt feature is in second feature
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact "up" or "down".
Moreover, fisrt feature can be above the second feature " above ", " above " and " above " fisrt feature right above second feature or tiltedly
Top, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature " under ", " lower section " and
" following " can be fisrt feature and be directly under or diagonally below the second feature, or be merely representative of first feature horizontal height less than
Two features.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (6)
1. a kind of design method of large size water lubriucated bearing tilting bush thrust bearing shoe valve, which comprises the following steps:
A: it establishes model: establishing design analysis model, thrust bearing shoe valve is designed by establishing thickness model, it is ensured that thrust bearing shoe valve
The accuracy of design；
B: it determines tile fragment quantity: determining the inside/outside diameter size of thrust bearing according to the operating condition of thrust bearing and installation dimension,
Thrust pad quantity is determined according to the inside/outside diameter size of thrust bearing；
C: determine oil film thickness: the roughness of runner plate, bearing friction loss, pair oil film thickness be changed, prevent runner plate broken
Bad oil film, causes burning accident；
D: position and the height of tile fragment are determined: calculates position and the size of tile fragment surface step, passes through the position of tile fragment surface step
It sets and size carries out calculating thrust bearing receiving load；
E: water film thickness is determined: the initial water film thickness of thrust bearing.
2. a kind of design method of large-scale water lubriucated bearing tilting bush thrust bearing shoe valve according to claim 1, it is characterised in that:
The dummy model drawn in the step A by mapping software, or the mock-up made work in actual design
In, convenient for operation and easy analysis, generally dummy model.
3. a kind of design method of large-scale water lubriucated bearing tilting bush thrust bearing shoe valve according to claim 1, it is characterised in that:
2-3 times having a size of internal diameter of bearing outside diameter in the step B, tile fragment quantity depends on bearing bore diameter, and tile fragment number needs
The condition of satisfaction is that tile fragment breadth length ratio is not less than 1.
4. a kind of design method of large-scale water lubriucated bearing tilting bush thrust bearing shoe valve according to claim 1, it is characterised in that:
Thrust bearing shoe valve oil film thickness is generally 0.03 between 0.07mm in the step C, the flatness of thrust bearing shoe valve and runner plate it is flat
Face degree is close, if the flatness of runner plate and thrust bearing shoe valve is bad, deviation has been more than minimum oil film thickness, can destroy and push away
Power watt and mirror pull between the oil film established.
5. a kind of design method of large-scale water lubriucated bearing tilting bush thrust bearing shoe valve according to claim 1, it is characterised in that:
Tile fragment surface step position is determined by the breadth length ratio of tile fragment in the step D, water when tile fragment ladder height is according to operation
Film thickness determines.
6. a kind of design method of large-scale water lubriucated bearing tilting bush thrust bearing shoe valve according to claim 1, it is characterised in that:
Water film thickness is calculated by operating condition and scale cun and is obtained in the step E.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910697377.XA CN110532623A (en) | 2019-07-30 | 2019-07-30 | A kind of design method of large size water lubriucated bearing tilting bush thrust bearing shoe valve |
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| CN201910697377.XA CN110532623A (en) | 2019-07-30 | 2019-07-30 | A kind of design method of large size water lubriucated bearing tilting bush thrust bearing shoe valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114104244A (en) * | 2021-12-06 | 2022-03-01 | 上海涟屹轴承科技有限公司 | Novel thrust bearing structure for ship |
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| CN103557229A (en) * | 2013-10-22 | 2014-02-05 | 申科滑动轴承股份有限公司 | Design method of water lubrication step tile dynamic pressure thrust bearing |
| CN107506562A (en) * | 2017-09-29 | 2017-12-22 | 西安科技大学 | A kind of two-way heat flow piercement computational methods of water lubricated rubber bearing |
| CN108256279A (en) * | 2018-03-20 | 2018-07-06 | 大连理工大学 | One seed nucleus main pump polymer matrix composites tilting bush water lubricating thrust bearing optimum design method |
-
2019
- 2019-07-30 CN CN201910697377.XA patent/CN110532623A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557229A (en) * | 2013-10-22 | 2014-02-05 | 申科滑动轴承股份有限公司 | Design method of water lubrication step tile dynamic pressure thrust bearing |
| CN107506562A (en) * | 2017-09-29 | 2017-12-22 | 西安科技大学 | A kind of two-way heat flow piercement computational methods of water lubricated rubber bearing |
| CN108256279A (en) * | 2018-03-20 | 2018-07-06 | 大连理工大学 | One seed nucleus main pump polymer matrix composites tilting bush water lubricating thrust bearing optimum design method |
Non-Patent Citations (4)
| Title |
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| 张秀丽等: "基于CFD的水润滑斜面推力轴承承载能力分析", 《东华大学学报(自然科学版)》 * |
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| 李永海等: "固定斜面瓦推力轴承变形分析", 《哈尔滨理工大学学报》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114104244A (en) * | 2021-12-06 | 2022-03-01 | 上海涟屹轴承科技有限公司 | Novel thrust bearing structure for ship |
| CN114104244B (en) * | 2021-12-06 | 2023-06-23 | 上海涟屹轴承科技有限公司 | Thrust bearing structure for ship |
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Application publication date: 20191203 |
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