CN104454984B - A kind of oily rachis is held - Google Patents
A kind of oily rachis is held Download PDFInfo
- Publication number
- CN104454984B CN104454984B CN201410574015.9A CN201410574015A CN104454984B CN 104454984 B CN104454984 B CN 104454984B CN 201410574015 A CN201410574015 A CN 201410574015A CN 104454984 B CN104454984 B CN 104454984B
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- Prior art keywords
- bearing body
- black golden
- chute
- golden tile
- black
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- 125000004122 cyclic group Chemical group 0.000 claims abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 4
- 238000003754 machining Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Sliding-Contact Bearings (AREA)
Abstract
Held the invention discloses a kind of oily rachis, including bearing body, black golden tile and black golden tile support slipper, the black golden tile is cast on black golden tile support slipper, and its working face molded line is blade profile or wedge type；The bearing body is cyclic structure, its inwall has bottom chute provided with multiple circumferentially distributed radial directions, each chute pours the black golden tile support slipper for being poured in black golden tile equipped with one, it can be slided in chute, black golden tile on sliding block is towards the bearing center of circle, screw and fastening bolt are provided with the back side of sliding block, corresponding bolt hole is provided with bearing body chute bottom, fastening bolt runs through the bolt hole, screw in the screw of slider back side, by sliding block fastening on bearing body, chute bottom land added with adjusting gasket.The black golden tile of the present invention is Split type structure with bearing body, and molded line precision is only considered during processing, gap size precision is not considered, difficulty of processing is reduced；Replaceable or reparation, reduces operating cost after concentrated wear；Bearings face is more, improves the stability of rotor operation.
Description
Technical field
Held the present invention relates to bearing, more particularly to a kind of oily rachis.
Background technology
The main shaft bearing of large high-speed rotating machinery such as steam turbine is generally held using oily rachis, as shown in figures 1-4, should
Bearing is made up of bearing body 1 and the two parts of black golden tile 2, and black golden tile 2 is cast in bearing body 1.Stayed between black golden tile 2 and main shaft 3
There is gap s, when main shaft 3 rotates, gap s is full of lubricating oil, forms oil film, it is to avoid main shaft 3 directly contacts generation with black golden tile 2
Rub and take away heat, play lubrication.The inner peripheral surface of black golden tile 2 is circumferentially processed into 3 or 4 working curved surfaces.Curved surface
Molded line has two kinds, specifically：One kind is circular arc line, and the forward or reverse of main shaft 3 can form oil film, is referred to as oily rachis and holds, such as
Fig. 1, shown in 2；Another is involute, and main shaft 3 only when designing direction of rotation v, could form oil film, referred to as oil film wedge axle
Hold, as shown in Figure 3,4.Traditionally, two kinds of structures are referred to as oily rachis and held.
It is very big that the oily rachis of this kind of structure holds Machining of Curved Surface difficulty, should ensure curved surface molded line precision, ensure again with it is main
The gap s of axle 3 dimensional accuracy；Without means of remedying during processing error, scrappage is high, and economic loss is big；Particularly minor diameter（It is interior
Hole is in Φ below 100）When, curved surface molded line, which is manually repaiied, scrapes shaping, and precision judges that bearing quality is more unsecured by rule of thumb；Existing
When field is installed, if the gap s for bearing and main shaft 3 occur is improper, means are not adjusted；Bearing was run after a period of time, if
Working curved surface wear up to bearing and main shaft 3 gap s it is overproof and when can not repair, whole bearing need to be changed, spare parts cost is high.
The content of the invention
Held it is an object of the invention to the oily rachis for designing a kind of adjustable, solve above-mentioned existing oily rachis and hold to adding
The problems such as the drawbacks of work, dismounting, maintenance are brought and less economical, bearing arrangement stability are poor.
The purpose of the present invention is realized in：
A kind of oily rachis is held, including bearing body, black golden tile and black golden tile support slipper, and the black golden tile is cast in black golden tile
On support slipper, its working face molded line is blade profile or wedge type；The bearing body is cyclic structure, and its inwall is provided with multiple circumferences point
The radial direction of cloth has bottom chute, and each chute pours the black golden tile support slipper for being poured in black golden tile equipped with one, can slided in chute,
Black golden tile on sliding block is provided with screw and fastening bolt at the back side of sliding block, is provided with bearing body chute bottom towards the bearing center of circle
Corresponding bolt hole, the fastening bolt runs through the bolt hole, screws in the screw of slider back side, and sliding block handle is fastened
On bearing body, chute bottom land added with adjusting gasket.
The radial direction of the bearing body inwall has bottom chute to be 3-6.
The bearing body is whole coil structures.
The bearing body is two halves structure, and the two halves of bearing body are fastened by connector handle to be integrated.
Beneficial effects of the present invention：Black golden tile is Split type structure with bearing body, and molded line precision is only considered during processing, is not considered
Gap size precision, reduces difficulty of processing；Replaceable or reparation, reduces operating cost after concentrated wear；Bearings face is more,
The stability of rotor operation can be improved.
Brief description of the drawings
Fig. 1 is the first half-sectional structure diagram of existing three lobe bearing（Leaf type face）；
Fig. 2 is the first half-sectional structure diagram that existing four oily rachises are held（Leaf type face）；
Fig. 3 is second of half-sectional structure diagram of existing three lobe bearing（Wedge profile）；
Fig. 4 is second of half-sectional structure diagram that existing four oily rachises are held（Wedge profile）；
Fig. 5 is the first half-sectional structure diagram that oily rachis of the invention is held；
Fig. 6 is second of half-sectional structure diagram that oily rachis of the invention is held.
Label is represented in figure：1- bearing bodies, 1-1- bottom half-bearings body, 1-2- upper half bearing body, 2- black golden tiles, 3- main shafts,
4- sliding blocks, 5- pads, 6- fastening bolts, 7- rows bolt, 8- pins, s- gaps, f- horizontal flanges, v- direction of rotation, A- are surveyed
Measure position.
Embodiment
As shown in Figure 5,6, the present invention is that a kind of oily rachis is held, including bearing body 1, black golden tile 2 and black golden tile support slipper
4, wherein：Black golden tile 2 is cast on black golden tile support slipper 4, is become one structure, and its working face molded line is blade profile or wedge type.
Bearing body 1 is cyclic structure, and its inwall has bottom chute provided with multiple circumferentially distributed radial directions, and each chute is poured equipped with one to be poured in
The black golden tile support slipper 4 of black golden tile 2, it can be slided in chute.It is so designed that so that bearing body 1 and sliding block 4 are split knots
Structure.
Black golden tile 2 on sliding block 4 is provided with screw and fastening bolt 6 towards the bearing center of circle at the back side of sliding block 4；In bearing
Body chute bottom is provided with corresponding bolt hole, and the fastening bolt 6 runs through the bolt hole, the screw at the back side of sliding block 4 is screwed in, by cunning
Block 4 is fastened on bearing body 1.
Chute bottom land added with adjusting gasket 5, select the pad 5 of different-thickness or increase and decrease the quantity of pad 5, can adjust
Gap s between black golden tile 2 and main shaft 3.The gap s at A is measured by lead extrusion or using clearance gauge, bearing body 1 and master is judged
Whether the gap s between axle 3 meets design requirement.
The radial direction of the inwall of bearing body 1 has bottom chute quantity and position to be determined according to the design requirement of operating machinery, very little
Then rotating stability is poor, then processes too much, loads and unloads cumbersome, generally to select 3-6 to be advisable.
The bearing body 1 can be whole coil structures or two halves structure；When bearing body 1 is two halves structure, bearing body
1 two halves（That is bottom half-bearing body 1-1 and upper half bearing body 1-2）Fastened and be integrated by connector handle, it is general here to use
Threaded connector, it would however also be possible to employ the fastener of other structures, such as key, pin, clip, does not tire out and states one by one.
Embodiment one, so that bearing body 1 holds for four oily rachises of whole coil structures as an example, is described in detail：
Referring to Fig. 5, this oily rachis, which is contracted, includes bearing body 1, black golden tile 2 and black golden tile support slipper 4, and the black golden tile 2 is poured into a mould
On black golden tile support slipper 4, become one structure, its working face molded line is blade profile.Bearing body 1 is cyclic structure, its inwall
There is bottom chute provided with 4 circumferentially distributed radial directions, each chute pours the black golden tile support slipper 4 for being poured in black golden tile 2 equipped with one,
It can be slided in chute.Black golden tile 2 on sliding block 4 is provided with screw and fastening bolt 6 towards the bearing center of circle at the back side of sliding block 4；
Corresponding bolt hole is provided with bearing body chute bottom, the fastening bolt 6 runs through the bolt hole, screws in the spiral shell at the back side of sliding block 4
Hole, by sliding block, 4 fasten on bearing body 1.In the bottom land of chute, added with adjusting gasket 5.
Embodiment two, so that bearing body 1 holds for four oily rachises of two halves structure as an example.
Referring to Fig. 6, this oily rachis, which is contracted, includes bearing body 1, black golden tile 2 and black golden tile support slipper 4, and its concrete structure is implemented
Example one is similar.But, to further facilitate bearing machining, dismounting, maintenance, bearing body 1 is classified as lower half using a point half structure
Bearing body 1-1 and upper half bearing body 1-2 two halves, fasten and are integrated by arranging bolt 7 and 8, pin.
Claims (1)
1. a kind of oily rachis is held, including bearing body, black golden tile and black golden tile support slipper, the black golden tile is cast in black golden tile branch
Support on sliding block, its working face molded line is blade profile or wedge type；Characterized in that, the bearing body is cyclic structure, its inwall is provided with
Multiple circumferentially distributed radial directions have bottom chute, and each chute pours the black golden tile support slipper for being poured in black golden tile equipped with one, can be
Slided in chute, the black golden tile on sliding block is provided with screw and fastening bolt, in bearing body towards the bearing center of circle at the back side of sliding block
Chute bottom is provided with corresponding bolt hole, and the fastening bolt runs through the bolt hole, the screw of slider back side is screwed in, by sliding block
Fastening on bearing body, chute bottom land added with adjusting gasket, select the pad of different-thickness or increase and decrease the number of pad
Amount, can adjust the gap between black golden tile and main shaft；Determine that the radial direction of bearing body inwall has according to the design requirement of operating machinery
The quantity of bottom chute and position, the radial direction have bottom chute to be 3-6；The bearing body is two halves structure, the two halves of bearing body
Fastened and be integrated by connector handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410574015.9A CN104454984B (en) | 2014-10-24 | 2014-10-24 | A kind of oily rachis is held |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410574015.9A CN104454984B (en) | 2014-10-24 | 2014-10-24 | A kind of oily rachis is held |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104454984A CN104454984A (en) | 2015-03-25 |
| CN104454984B true CN104454984B (en) | 2017-07-28 |
Family
ID=52901548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410574015.9A Active CN104454984B (en) | 2014-10-24 | 2014-10-24 | A kind of oily rachis is held |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104454984B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120377B (en) * | 2017-06-30 | 2019-04-19 | 哈尔滨工程大学 | An elastically supported dry friction damper |
| AU2019365142B2 (en) | 2018-10-26 | 2020-12-17 | Andritz Hydro Canada Inc. | Variable guide bearing |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2103239A1 (en) * | 1971-01-25 | 1972-08-10 | Kraftwerk Union Ag | Radial plain bearings, designed as three-part bearings, preferably for turbo machines |
| JPS5947164B2 (en) * | 1978-10-26 | 1984-11-17 | 三井造船株式会社 | Self-adjusting gap bearing |
| JPS5729811A (en) * | 1980-07-25 | 1982-02-17 | Hitachi Ltd | Preload reducing apparatus of tilting-pad type bearing |
| JPH0518488Y2 (en) * | 1986-12-12 | 1993-05-17 | ||
| CZ300719B6 (en) * | 2003-11-11 | 2009-07-22 | První brnenská strojírna Velká Bíteš, a.s. | Sliding radial bearing |
| AT507397A1 (en) * | 2008-09-29 | 2010-04-15 | Miba Gleitlager Gmbh | HUB SHAFT BEARING |
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2014
- 2014-10-24 CN CN201410574015.9A patent/CN104454984B/en active Active
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| Publication number | Publication date |
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| CN104454984A (en) | 2015-03-25 |
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