CN102878107A - Tile fixing structure of tilting-pad bearing - Google Patents
Tile fixing structure of tilting-pad bearing Download PDFInfo
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- CN102878107A CN102878107A CN2012103938039A CN201210393803A CN102878107A CN 102878107 A CN102878107 A CN 102878107A CN 2012103938039 A CN2012103938039 A CN 2012103938039A CN 201210393803 A CN201210393803 A CN 201210393803A CN 102878107 A CN102878107 A CN 102878107A
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- Prior art keywords
- bearing
- tilting
- gap
- shaft bushing
- fixing structure
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Abstract
The invention relates to a tile fixing structure of a tilting-pad bearing. The tile fixing structure comprises a bearing body, a shaft bushing, a journal, an end cover, fixing pins and screws, and the shaft bushing is positioned between the bearing body and the journal. The end cover is fixedly arranged on two sides of the bearing body through the screws; small holes are drilled in the end cover; the fixing pins are embedded in the small holes; and the shaft bushing is subjected to radial positioning through the fixing pins at two ends. A gap is arranged between the end cover and the shaft bushing in an axial direction. The shaft bushing can be subjected to effective axial positioning through reasonably arranging the gap. The gap is arranged between the shaft bushing and the journal. The tile fixing structure is simple, compact and reasonable in structure; the processing and the assembly are simpler and more convenient; the manufacturing cost is low; the stability requirement of a rotor under a high-speed light load can be met; and the tile fixing structure is particularly applicable to a high-speed impeller shaft of a centrifugal fan.
Description
Technical field
The present invention relates to a kind of tile fragment fixed structure of tilting-pad bearing, specifically a kind of tile fragment of the tilting-pad radial bearing for centrifugal blower is fixed, and belongs to the mechanical structure technical field.
Background technique
The tile fragment of tilting-pad radial bearing can be adjusted its gradient automatically with the variation of load, speed, is the best bearing type of stability, mainly is applicable to the operating mode of high speed light loading.The rotating speed of centrifugal blower is higher, and tilting-pad bearing can form best oil film when working conditions change, and good anti-vibration is not easy to produce oil whip.
The tile fragment of present tilting-pad radial bearing, axially locating adopts screw to locate more.Need to drive a positioning hole at a watt back, and in the oil groove of bearing support, open a tapped through hole.Screw screws in tapped through hole, then enters the positioning hole of watt back of the body, realizes in such a way the axially locating of tile fragment.Such mode is assembled complexity, processes more loaded down with trivial details.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, thereby a kind of tile fragment fixed structure of tilting-pad bearing is provided, and this is simple and reasonable, assembles and process easy, can satisfy the stability requirement of high speed light loading lower rotor part, be particularly useful for the quick runner axle of centrifugal blower.
According to technological scheme provided by the invention, a kind of tile fragment fixed structure of tilting-pad bearing comprises bearing support, bearing shell, axle journal, end cap, fixing pin and screw, and described bearing shell is between bearing support and axle journal.Described end cap is fixed by screws in the bearing support both sides, is drilled with aperture on the end cap, aperture embedded fixing pin, bearing shell carries out radial location by the fixing pin at two ends.Described end cap and bearing shell are Y axially being provided with the gap, and Y arranges and can carry out effective axially locating to bearing shell by rational gap between 0.5mm to 1mm.
As a further improvement on the present invention, described bearing shell is the great circle arc that radius is R at axial plane, and R is not less than 800mm.
As a further improvement on the present invention, be provided with gap X between described bearing shell and the axle journal, and X is between 0.06-0.1mm.
Compared with the prior art the present invention has the following advantages:
The present invention is simple in structure, compact, reasonable; Processing is easier with assembling, low cost of manufacture; Can satisfy the stability requirement of high speed light loading lower rotor part, be particularly useful for the quick runner axle of centrifugal blower.
Description of drawings
Fig. 1 is embodiment of the invention structural representation.
Fig. 2 is the A-A view of Fig. 1.
Embodiment
The following embodiment of the invention is further described in connection with accompanying drawing:
As shown in Figure 1 and Figure 2: present embodiment comprises bearing support 1, bearing shell 2, axle journal 3, end cap 4, fixing pin 5 and screw 6, and described bearing shell 2 is between bearing support 1 and axle journal 3.Described end cap 4 is fixed on bearing support 1 both sides by screw 6, is drilled with aperture on the end cap 4, aperture embedded fixing pin 5, bearing shell 2 carries out radial location by the fixing pin 5 at two ends.Described end cap 4 is Y with bearing shell 2 axially being provided with the gap, and Y arranges and can carry out effective axially locating to bearing shell by rational gap between 0.5mm to 1mm.The outside of bearing shell 2 is the great circle arc that radius is R at axial plane, and described radius R is not less than 800mm; Be provided with gap X between bearing shell and the axle journal, and X is between 0.06-0.1mm.
When rotor journal 3 rotates, bearing shell 2 can compensate rotor journal in axial inclination by the swing of circular arc R in axial plane in the outside, make oil film wedge thickness remain at comparatively uniformly state in axial distribution, simultaneously, because bearing shell 2 is less with the gap of axle journal 3, relatively reduce the radial vibration of rotor journal 3, improved the working stability of rotor.
Prove that through repetition test when the present invention was used for driving the impeller shaft of high-speed centrifugal fan, the working stability of rotor can meet design requirement fully.
Claims (4)
1. the tile fragment fixed structure of a tilting-pad bearing comprises bearing support (1), bearing shell (2), axle journal (3), end cap (4), fixing pin (5) and screw (6), and described bearing shell (2) is positioned between bearing support (1) and the axle journal (3); Described end cap (4) is fixed on bearing support (1) both sides by screw (6), it is characterized in that: described end cap is drilled with the hole on (4), the hole embedded fixing pin (5), bearing shell (2) carries out radial location by the fixing pin (5) at two ends; Described end cap (4) axially is being provided with the gap with bearing shell (2).
2. the tile fragment fixed structure of tilting-pad bearing as claimed in claim 1, it is characterized in that: described gap is 0.5mm to 1mm.
3. the tile fragment fixed structure of tilting-pad bearing as claimed in claim 1, it is characterized in that: described bearing shell (2) is the circular arc that radius is R at axial plane, and R is not less than 800mm.
4. the tile fragment fixed structure of tilting-pad bearing as claimed in claim 1, it is characterized in that: be provided with the gap between described bearing shell (2) and the axle journal (3), the gap is 0.06-0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103938039A CN102878107A (en) | 2012-10-16 | 2012-10-16 | Tile fixing structure of tilting-pad bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103938039A CN102878107A (en) | 2012-10-16 | 2012-10-16 | Tile fixing structure of tilting-pad bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102878107A true CN102878107A (en) | 2013-01-16 |
Family
ID=47479565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103938039A Pending CN102878107A (en) | 2012-10-16 | 2012-10-16 | Tile fixing structure of tilting-pad bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102878107A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483766A (en) * | 2022-03-09 | 2022-05-13 | 中国船舶重工集团公司第七0三研究所 | Novel tilting pad supporting bearing structure with oil nozzle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3542441A (en) * | 1968-03-28 | 1970-11-24 | Westinghouse Electric Corp | Controlled clearance self-aligning bearing |
| US5738445A (en) * | 1997-02-21 | 1998-04-14 | Delaware Capital Formation, Inc. | Journal bearing having vibration damping elements |
| 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 |
| CN101216065A (en) * | 2007-12-29 | 2008-07-09 | 东方电气集团东方汽轮机有限公司 | Ring shaped oil passage type tilting pad bearing |
| CN102287446A (en) * | 2011-08-02 | 2011-12-21 | 无锡杰尔压缩机有限公司 | Bearing bush structure of tile-tilting radial bearing |
| CN202926700U (en) * | 2012-10-16 | 2013-05-08 | 无锡杰尔压缩机有限公司 | Broken tiles fixing structure of tilting-pad bearing |
-
2012
- 2012-10-16 CN CN2012103938039A patent/CN102878107A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3542441A (en) * | 1968-03-28 | 1970-11-24 | Westinghouse Electric Corp | Controlled clearance self-aligning bearing |
| US5738445A (en) * | 1997-02-21 | 1998-04-14 | Delaware Capital Formation, Inc. | Journal bearing having vibration damping elements |
| 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 |
| CN101216065A (en) * | 2007-12-29 | 2008-07-09 | 东方电气集团东方汽轮机有限公司 | Ring shaped oil passage type tilting pad bearing |
| CN102287446A (en) * | 2011-08-02 | 2011-12-21 | 无锡杰尔压缩机有限公司 | Bearing bush structure of tile-tilting radial bearing |
| CN202926700U (en) * | 2012-10-16 | 2013-05-08 | 无锡杰尔压缩机有限公司 | Broken tiles fixing structure of tilting-pad bearing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483766A (en) * | 2022-03-09 | 2022-05-13 | 中国船舶重工集团公司第七0三研究所 | Novel tilting pad supporting bearing structure with oil nozzle |
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Application publication date: 20130116 |