CN102287446A - Bearing bush structure of tile-tilting radial bearing - Google Patents
Bearing bush structure of tile-tilting radial bearing Download PDFInfo
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- CN102287446A CN102287446A CN2011102190399A CN201110219039A CN102287446A CN 102287446 A CN102287446 A CN 102287446A CN 2011102190399 A CN2011102190399 A CN 2011102190399A CN 201110219039 A CN201110219039 A CN 201110219039A CN 102287446 A CN102287446 A CN 102287446A
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- bearing
- boss
- bearing bush
- bearing shell
- circular arc
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Abstract
The invention discloses a bearing bush structure of a tile-tilting radial bearing. The bearing bush structure comprises a bearing body, a bearing bush and a shaft neck, wherein the bearing bush is arranged between the shaft neck and the bearing body; a boss is arranged on the outer side of the bearing bush, has a small circular arc shape on a radial surface and has a large circular arc shape on an axial surface; the radius r of the radial small circular arc of the boss is 3 to 20mm; and the radius R of the axial large circular arc of the boss is not less than 800mm. The bearing bush structure has a compact and reasonable structure; and the bearing bush can be swung in the axial surface to ensure the distribution uniformity of an oil wedge in the axial direction, so that the working stability of the bearing is improved.
Description
Technical field
The present invention relates to a kind of bearing shell structure of tilting-pad radial bearing, specifically a kind of improved structure of bearing shell belongs to the mechanical structure technical field.
Background technique
In existing technology, bearing on the high speed shaft of high-speed centrifugal fan generally all uses tilting-pad bearing, its bearing shell is swung in the axle journal radial plane around a fulcrum, come bearing load with the circular arc of bearing shell inboard and the oil film wedge of axle journal formation, fulcrum on the bearing shell generally adopts half cylindrical structure, bearing shell axially can not swung, owing to reasons such as foozles, when the journal shaft center line tilts, bearing shell can not be in this error of nose balance, make oil film wedge in the axial distribution inequality, gently then influence bearing working stability, heavy then bearing shell contacts down at a high speed with axle journal bearing shell is damaged.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, thereby a kind of bearing shell structure of tilting-pad radial bearing is provided, guarantee the stability of bearing under operating mode.
According to technological scheme provided by the invention, a kind of bearing shell structure of tilting-pad radial bearing comprises bearing support, bearing shell, axle journal, be provided with bearing shell between described axle journal and the bearing support, the outside of described bearing shell is provided with a boss, boss is little circular arc on the radial plane, boss is the great circle arc on axial plane.
As a further improvement on the present invention, described boss radially roundlet arc radius r between 3-20mm.
As a further improvement on the present invention, the axial large circular arc radius R of described boss is not less than 800mm.
Compared with the prior art the present invention has the following advantages:
Compact structure of the present invention, reasonable; Bearing shell can be swung in axial plane, guarantees oil film wedge at axial distributing homogeneity, thereby improves bearing work stability.
Description of drawings
Fig. 1 is the example structure schematic representation.
Fig. 2 is embodiment A-A sectional view.
Embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
As shown in Figure 1 and Figure 2: present embodiment comprises component such as bearing support 1, bearing shell 2, axle journal 3.
Be provided with bearing shell 2 between described axle journal 3 and the bearing support 1, the outside of described bearing shell 2 is provided with a fulcrum boss, and boss is roundlet arc r on the radial plane, and boss is great circle arc R on axial plane; Described boss radially roundlet arc radius r between 3-20mm; The axial large circular arc radius R of described boss is not less than 800mm.
Under operating conditions, axle journal 3 is along direction of arrow high speed rotating, under the pressure oil effect, form oil film wedge between the inner arc of bearing shell 2 and the axle journal with bearing load, optimal oil film wedge should be evenly to distribute vertically, for example: the oil film wedge thickness on the B-B cross section all should be X, when combined causes such as accuracy of manufacturing are spent axle journal 3 and ideal axis inclination Y, effect by pressure oil in the oil film wedge makes the orthodrome R in bearing shell 2 outsides can make the inclination of corresponding swing with compensation axle journal 3 in axial plane, thereby guarantee that axial oil film wedge thickness is X, makes bearing work stability be able to reliable assurance.
Claims (3)
1. the bearing shell structure of a tilting-pad radial bearing, comprise bearing support (1), bearing shell (2), axle journal (3), be provided with bearing shell (2) between described axle journal (3) and the bearing support (1), it is characterized in that: the arranged outside of described bearing shell (2) has boss, boss is little circular arc on the radial plane, boss is the great circle arc on axial plane.
2. a kind of according to claim 1 bearing shell structure of tilting-pad radial bearing, it is characterized in that: described roundlet arc radius r is between 3-20mm.
3. a kind of according to claim 1 bearing shell structure of tilting-pad radial bearing, it is characterized in that: described large circular arc radius R is not less than 800mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102190399A CN102287446A (en) | 2011-08-02 | 2011-08-02 | Bearing bush structure of tile-tilting radial bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102190399A CN102287446A (en) | 2011-08-02 | 2011-08-02 | Bearing bush structure of tile-tilting radial bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102287446A true CN102287446A (en) | 2011-12-21 |
Family
ID=45334119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102190399A Pending CN102287446A (en) | 2011-08-02 | 2011-08-02 | Bearing bush structure of tile-tilting radial bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102287446A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767403A (en) * | 2012-07-04 | 2012-11-07 | 联优机械(常熟)有限公司 | Transmission-shaft supporting mechanism of power-outputting device for turboexpander |
| CN102878107A (en) * | 2012-10-16 | 2013-01-16 | 无锡杰尔压缩机有限公司 | Tile fixing structure of tilting-pad bearing |
| CN103953644A (en) * | 2014-05-21 | 2014-07-30 | 无锡杰尔压缩机有限公司 | Radially adjustable tiltable pad bearing |
| CN106286598A (en) * | 2015-06-25 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of blower fan bearing shell |
| CN110513399A (en) * | 2019-08-23 | 2019-11-29 | 东方电气集团东方汽轮机有限公司 | It is a kind of that slide thrust bearing is made to realize the structure from capability |
| CN113803366A (en) * | 2021-09-16 | 2021-12-17 | 上海涟屹轴承科技有限公司 | Self-adaptive sliding bearing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52118150A (en) * | 1976-03-31 | 1977-10-04 | Hitachi Ltd | Tilting pad bearing |
| EP0068103B1 (en) * | 1981-06-30 | 1985-02-27 | Krupp Polysius Ag | Hydrodynamic bearing |
| US20040032996A1 (en) * | 2002-08-15 | 2004-02-19 | Hudson James N. | Reduced width tilting pad journal bearing and related method |
| CN101216064A (en) * | 2007-12-29 | 2008-07-09 | 东方电气集团东方汽轮机有限公司 | Spherical sleeve type tilting pad bearing |
| CN101372999A (en) * | 2008-09-23 | 2009-02-25 | 无锡金露通用机械有限公司 | Self-adjusting integration type radial sliding bearing |
| CN202176616U (en) * | 2011-08-02 | 2012-03-28 | 无锡杰尔压缩机有限公司 | Bearing bush structure for radial bearing of tilting pad |
-
2011
- 2011-08-02 CN CN2011102190399A patent/CN102287446A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52118150A (en) * | 1976-03-31 | 1977-10-04 | Hitachi Ltd | Tilting pad bearing |
| EP0068103B1 (en) * | 1981-06-30 | 1985-02-27 | Krupp Polysius Ag | Hydrodynamic bearing |
| US20040032996A1 (en) * | 2002-08-15 | 2004-02-19 | Hudson James N. | Reduced width tilting pad journal bearing and related method |
| CN101216064A (en) * | 2007-12-29 | 2008-07-09 | 东方电气集团东方汽轮机有限公司 | Spherical sleeve type tilting pad bearing |
| CN101372999A (en) * | 2008-09-23 | 2009-02-25 | 无锡金露通用机械有限公司 | Self-adjusting integration type radial sliding bearing |
| CN202176616U (en) * | 2011-08-02 | 2012-03-28 | 无锡杰尔压缩机有限公司 | Bearing bush structure for radial bearing of tilting pad |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767403A (en) * | 2012-07-04 | 2012-11-07 | 联优机械(常熟)有限公司 | Transmission-shaft supporting mechanism of power-outputting device for turboexpander |
| CN102878107A (en) * | 2012-10-16 | 2013-01-16 | 无锡杰尔压缩机有限公司 | Tile fixing structure of tilting-pad bearing |
| CN103953644A (en) * | 2014-05-21 | 2014-07-30 | 无锡杰尔压缩机有限公司 | Radially adjustable tiltable pad bearing |
| CN106286598A (en) * | 2015-06-25 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of blower fan bearing shell |
| CN110513399A (en) * | 2019-08-23 | 2019-11-29 | 东方电气集团东方汽轮机有限公司 | It is a kind of that slide thrust bearing is made to realize the structure from capability |
| CN110513399B (en) * | 2019-08-23 | 2021-12-21 | 东方电气集团东方汽轮机有限公司 | Structure for realizing self-aligning capability of sliding thrust bearing |
| CN113803366A (en) * | 2021-09-16 | 2021-12-17 | 上海涟屹轴承科技有限公司 | Self-adaptive sliding bearing |
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Application publication date: 20111221 |