CN102290906A - Tilting-pad radial bearing for high speed motor - Google Patents
Tilting-pad radial bearing for high speed motor Download PDFInfo
- Publication number
- CN102290906A CN102290906A CN2011102331344A CN201110233134A CN102290906A CN 102290906 A CN102290906 A CN 102290906A CN 2011102331344 A CN2011102331344 A CN 2011102331344A CN 201110233134 A CN201110233134 A CN 201110233134A CN 102290906 A CN102290906 A CN 102290906A
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- Prior art keywords
- bearing
- pad
- tilting
- radial bearing
- speed motor
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- 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.)
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Abstract
The invention discloses a tilting-pad radial bearing for a high speed motor. The tilting-pad radial bearing comprises a bearing body, and is characterized by further comprising a bearing pad and a journal, wherein the bearing pad is positioned between the bearing body and the journal; the outside of the bearing pad presents a large circular arc with the radius of R on an axial plane; the radius R of the large circular arc presented by the outside of the bearing pad on the axial plane is not less than 800mm; and a gap of 0.06 to 0.1mm is formed between the bearing pad and the journal. The tilting-pad radial bearing has a simple, compact and rational structure, is formed by improving an ordinary tilting-pad radial bearing with low manufacturing cost, can meet requirements on the stability of a rotor under high speed and light load, and is particularly applied to the high speed motor for driving a blower.
Description
Technical field
The present invention relates to a kind of used in high-speed motor tilting-pad radial bearing, specifically be used for replacing on the high-speed electric expreess locomotive a kind of tilting-pad radial bearing of magnetic suspension bearing, belong to the mechanical structure technical field.
Background technology
In present high-speed electric expreess locomotive, use magnetic suspension bearing to come supporting rotor usually.Because structure is very complicated and the accuracy of manufacture is high, and cost is significantly risen, and has had a strong impact on this type of high-speed electric expreess locomotive promoting the use of in civilian industry.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby a kind of used in high-speed motor tilting-pad radial bearing is provided, this bearing can satisfy the stability requirement of high speed light loading lower rotor part, is particularly useful for the high-speed electric expreess locomotive of blower.
According to technical scheme provided by the invention, used in high-speed motor tilting-pad radial bearing comprises bearing body, and feature is: also comprise bearing shell and axle journal, described bearing shell is between bearing body and axle journal, and the outside of bearing shell is the great circle arc that radius is R on axial plane.
As a further improvement on the present invention, the described bearing shell large circular arc radius R of the outside on axial plane is not less than 800mm.
As a further improvement on the present invention, be provided with the gap between described bearing shell and the axle journal, described gap 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; It is improved by general tilting-pad radial bearing and forms low cost of manufacture; Can satisfy the stability requirement of high speed light loading lower rotor part, be particularly useful for the high-speed electric expreess locomotive of blower.
Description of drawings
Fig. 1 is an embodiment of the invention structural representation.
Embodiment
The following embodiment of the invention will be further described in conjunction with the accompanying drawings:
As shown in Figure 1: present embodiment comprises bearing body 1, bearing shell 2, rotor journal 3.Described bearing shell 2 is between bearing body 1 and axle journal 3, and the outside of bearing shell 2 is the great circle arc that radius is R on axial plane, and described radius R is not less than 800mm; Be provided with the gap between described bearing shell 2 and the axle journal 3, described gap is 0.06-0.1mm.
When rotor journal 3 rotates, bearing shell 2 can compensate rotor journal in axial gradient by the swing of circular arc R in axial plane in the outside, make oil film wedge thickness remain at state comparatively uniformly in axial distribution, simultaneously, because bearing shell 2 is less with the gap of axle journal 3, reduce the radial vibration of rotor journal 3 relatively, improved the job stability of rotor.
Prove that through repetition test when the present invention was used to drive the high-speed electric expreess locomotive of high-speed centrifugal fan, the job stability of rotor can meet design requirement fully.
Claims (3)
1. used in high-speed motor tilting-pad radial bearing, comprise bearing body (1), it is characterized in that: also comprise bearing shell (2) and axle journal (3), described bearing shell (2) is positioned between bearing body (1) and the axle journal (3), and the outside of bearing shell (2) is the circular arc that radius is R on axial plane.
2. used in high-speed motor tilting-pad radial bearing as claimed in claim 1 is characterized in that: the radius R of described bearing shell (2) outside on axial plane is not less than 800mm.
3. used in high-speed motor tilting-pad radial bearing as claimed in claim 1 is characterized in that: be provided with the gap between described bearing shell (2) and the axle journal (3), described gap is between 0.06-0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102331344A CN102290906A (en) | 2011-08-13 | 2011-08-13 | Tilting-pad radial bearing for high speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102331344A CN102290906A (en) | 2011-08-13 | 2011-08-13 | Tilting-pad radial bearing for high speed motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102290906A true CN102290906A (en) | 2011-12-21 |
Family
ID=45337080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102331344A Pending CN102290906A (en) | 2011-08-13 | 2011-08-13 | Tilting-pad radial bearing for high speed motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102290906A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2509371Y (en) * | 2001-01-02 | 2002-09-04 | 孙守连 | Multi-scarf plastic composite bush |
| US6736542B2 (en) * | 2002-08-15 | 2004-05-18 | James Hudson | Reduced width tilting pad journal bearing and related method |
| CN201393160Y (en) * | 2009-03-04 | 2010-01-27 | 上海同济南汇科技产业园有限公司 | High-speed grease bearing permanent magnet motor |
| CN201420809Y (en) * | 2009-03-27 | 2010-03-10 | 上海同济南汇科技产业园有限公司 | Tile type tilting bearing |
| CN202209354U (en) * | 2011-08-13 | 2012-05-02 | 无锡杰尔压缩机有限公司 | Radial bearing with tiltable bush for high-speed motor |
-
2011
- 2011-08-13 CN CN2011102331344A patent/CN102290906A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2509371Y (en) * | 2001-01-02 | 2002-09-04 | 孙守连 | Multi-scarf plastic composite bush |
| US6736542B2 (en) * | 2002-08-15 | 2004-05-18 | James Hudson | Reduced width tilting pad journal bearing and related method |
| CN201393160Y (en) * | 2009-03-04 | 2010-01-27 | 上海同济南汇科技产业园有限公司 | High-speed grease bearing permanent magnet motor |
| CN201420809Y (en) * | 2009-03-27 | 2010-03-10 | 上海同济南汇科技产业园有限公司 | Tile type tilting bearing |
| CN202209354U (en) * | 2011-08-13 | 2012-05-02 | 无锡杰尔压缩机有限公司 | Radial bearing with tiltable bush for high-speed motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111221 |