CN103267064B - The mounting process of steam turbine bearing tilting bush - Google Patents
The mounting process of steam turbine bearing tilting bush Download PDFInfo
- Publication number
- CN103267064B CN103267064B CN201310180509.4A CN201310180509A CN103267064B CN 103267064 B CN103267064 B CN 103267064B CN 201310180509 A CN201310180509 A CN 201310180509A CN 103267064 B CN103267064 B CN 103267064B
- Authority
- CN
- China
- Prior art keywords
- tile
- tilting bush
- tile fragment
- bearing
- steam turbine
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Sliding-Contact Bearings (AREA)
- Support Of The Bearing (AREA)
Abstract
The present invention relates to the steam turbine in electric power energy field, be specifically related to steam turbine bearing tilting bush and mounting process.Technical scheme: described tilting bush peace circumference is equally divided into four tile fragments, and the circumference arc of every tile fragment is 75 degree, and wherein adjacent pair tilting bush is can load bearing tile；Beneficial effect: be each piece watt and equal can freely swing, under any circumstance can form best oil film wedge, and high stability is very good, is not susceptible to oil whip, is automatically adjusted tile fragment position, forms best lubrication wedge, safety；Reliably；Without bite；Vibration risk will not be increased；Wa Wen should in safety range；Longtime running fault-free can be stood.
Description
Technical field:
The present invention relates to the steam turbine in electric power energy field, be specifically related to steam turbine bearing tilting bush and mounting process.
Background technology:
In electric power energy field, steam turbine also exists excessive problem during bearing coal temperature is run, and unit is in operation the phenomenon causing bearing shell coal and turbine shaft contact surface unstable owing to bearing shell is axially inclined, thus causing ratio pressure instability, causes watt temperature unstable.
Summary of the invention
It is an object of the invention to for prior art Problems existing, it is provided that a kind of safe and reliable, tile fragment can freely movable, without bite, will not increase and vibrate risk, Wa Wen and and the trouble-free steam turbine bearing tilting bush of longtime running and mounting process can be stood in safety range.
Technical scheme: described tilting bush is equally divided into four tile fragments by circumference, the angle that the circumference arc of every tile fragment is corresponding is 75 degree, and wherein adjacent pair tilting bush is can load bearing tile；
The mounting process of described steam turbine bearing tilting bush, is characterized in that: be made up of following steps:
One: a pair load-bearing tilting bush fulcrum is about circumferencial direction bottom on the position of each 45 degree, and the center of a pair load-bearing tilting bush is at upwards 0.2mm place, axle center；
Two: in the coal that tile fragment contacts with turbine shaft, circular diameter is 361.5mm, outside diameter is 490mm, and parallels arc diameter is 460mm, and corresponding parallels segmental tile pillow diameter is 500mm；
Three: adopting sphere contacts with a watt pillow contact site bottom tile fragment, bottom tile fragment, parallels adopts tool steel, and pillow corresponding parallels in bottom watt adopts bearing steel；
Four: the hangers of tile fragment is as suspension, suspension is to adopt both sides circumference and axially position, and circumferencial direction limits the activity space of positive and negative 3mm, axially limits the activity space of positive and negative 2mm, tile fragment up and down with the swing space of the maximum allowable 2.5mm of circle swing, tile fragment rotates the swing of permission 1.5 degree.
Have oil-feed contract in tilting bush oil-feed side, oil-feed contract angle is 1.5 degree.
Beneficial effect: be each piece watt and equal can freely swing, under any circumstance can form best oil film wedge, and high stability is very good, is not susceptible to oil whip, is automatically adjusted tile fragment position, forms best lubrication wedge, safety；Reliably；Without bite；Vibration risk will not be increased；Wa Wen should in safety range；Longtime running fault-free can be stood.
Accompanying drawing illustrates: accompanying drawing 1 is the front view of the present embodiment, and accompanying drawing 2 is the right view of accompanying drawing 1, and accompanying drawing 3 is the left view of accompanying drawing 1, and in figure, 3 is big axle.
Detailed description of the invention
With reference to accompanying drawing 1-3, described in the present embodiment, tilting bush peace circumference is equally divided into four tile fragments 1, and the angle that the circumference arc of every tile fragment 1 is corresponding is 75 degree, and wherein adjacent pair tilting bush is can load bearing tile 2；Its mounting process is: one: a pair load-bearing tilting bush 2 fulcrum is about circumferencial direction bottom on the position of each 45 degree, and the center of a pair load-bearing tilting bush is at upwards 0.2mm place, axle center；Two: in the coal that tile fragment contacts with turbine shaft, circular diameter is 361.5mm, outside diameter is 490mm, and parallels arc diameter is 460mm, and corresponding parallels segmental tile pillow diameter is 500mm, to ensure that specific contact pressure rationally and ensures that oil-feed is unimpeded；Three: bottom tile fragment, adopt sphere contacts with a watt pillow contact site, bottom tile fragment, parallels adopts tool steel, pillow corresponding parallels in bottom watt adopts bearing steel, prevent material one from making peace occlusion that hardness unanimously causes, the cooperation of hardness respectively HRC40-50 and HRC55-62, namely ensure that reasonably hardness and wearability, in turn ensure that will not produce between material engaged；Four: the hangers of tile fragment is as suspension, suspension is to adopt both sides circumference and axially position, circumferencial direction limits the activity space of positive and negative 3mm, axially limit the activity space of positive and negative 2mm, tile fragment is up and down and the swing space of the maximum allowable 2.5mm of circle swing, tile fragment rotates the swing allowing 1.5 degree, allows certain activity in this three dimensions, and exceeding this scope will be stuck.Having oil-feed contract in order to oil-feed is unimpeded in tilting bush oil-feed side, oil-feed contract angle is 1.5 degree, is further ensured that when improving within the specific limits than pressure, does not result in a watt warm rising.
A, B, C, D, E, F, G, H point in figure is the gap width between the oil catch of each position and big axle respectively, owing to tile fragment is movable in watt pillow, so the right value measured be the both sides value sum in range of activity divided by the meansigma methods of two, see following table:
| A | B | C | D | E | F | G | H |
| 85 | 104 | 40 | 52 | 75 | 55 | 85 | 55 |
That is: oil catch gap in bottom is: (A+B)/2=(85+104)/2=94.5mm
Oil catch gap, top is: (D+C)/2=(52+40)/2=46mm
Oil catch gap, both sides: from steam turbine to generator side:
Gap, left side: (G+F)/2=(85+55)/2=70mm
Gap, right side: (E+H)/2=(75+55)/2=65mm
Additionally define in terms of steamer pusher side on the right side of bearing shell lower watt and claim #1 watt；Lower watt of left side claims #2 watt, and each watt of measurement data is as follows: unit mm
| Tile fragment title | Tile fragment body thickness | The spherical parallels thickness of tile fragment | Tile fragment adjustment thickness of scale | Tile fragment general thickness |
| #1 tile fragment | 18.92 | 2.01 | 49.86 | 70.79 |
| #2 tile fragment | 17.92 | 2.61 | 50.29 | 70.82 |
Shang watt bottom clearance: left side 0.53mm；Right side 0.54mm.
Claims (2)
1. the mounting process of steam turbine bearing tilting bush, described tilting bush is equally divided into four tile fragments by circumference, and the angle that the circumference arc of every tile fragment is corresponding is 75 degree, and wherein adjacent pair tilting bush is can load bearing tile；It is characterized in that: described mounting process is made up of following steps:
One: a pair load-bearing tilting bush fulcrum is about circumferencial direction bottom on the position of each 45 degree, and the center of a pair load-bearing tilting bush is at upwards 0.2mm place, axle center；
Two: in the coal that tile fragment contacts with turbine shaft, circular diameter is 361.5mm, outside diameter is 490mm, and parallels arc diameter is 460mm, and corresponding parallels segmental tile pillow diameter is 500mm；
Three: adopting sphere contacts with a watt pillow contact site bottom tile fragment, bottom tile fragment, parallels adopts tool steel, and pillow corresponding parallels in bottom watt adopts bearing steel；
Four: the hangers of tile fragment is as suspension, suspension is to adopt both sides circumference and axially position, and circumferencial direction limits the activity space of positive and negative 3mm, axially limits the activity space of positive and negative 2mm, tile fragment up and down with the swing space of the maximum allowable 2.5mm of circle swing, tile fragment rotates the swing of permission 1.5 degree.
2. the mounting process of steam turbine bearing tilting bush according to claim 1, is characterized in that: have oil-feed contract in tilting bush oil-feed side, oil-feed contract angle is 1.5 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180509.4A CN103267064B (en) | 2013-05-16 | 2013-05-16 | The mounting process of steam turbine bearing tilting bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180509.4A CN103267064B (en) | 2013-05-16 | 2013-05-16 | The mounting process of steam turbine bearing tilting bush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103267064A CN103267064A (en) | 2013-08-28 |
| CN103267064B true CN103267064B (en) | 2016-06-29 |
Family
ID=49010710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310180509.4A Expired - Fee Related CN103267064B (en) | 2013-05-16 | 2013-05-16 | The mounting process of steam turbine bearing tilting bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103267064B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631839A (en) * | 2019-09-30 | 2019-12-31 | 大唐郓城发电有限公司 | Method for judging shafting stability of single-shaft 5-cylinder 4-exhaust steam turbine set |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021233A (en) * | 2006-11-02 | 2007-08-22 | 湘潭市岳塘区兴盛液压机械配件加工厂 | Processing technology for deformed tiltable bush |
| CN201661606U (en) * | 2010-04-13 | 2010-12-01 | 上海申科滑动轴承有限公司 | Novel radial tilting-pad sliding bearing oil-feeding structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52137549A (en) * | 1976-05-12 | 1977-11-17 | Mitsubishi Heavy Ind Ltd | Inclined-moving pad type journal bearing |
| JPS5830523A (en) * | 1981-08-18 | 1983-02-23 | Ebara Corp | Inclined pad type vibration suppressing bearing |
| JP3337296B2 (en) * | 1993-11-30 | 2002-10-21 | 三菱重工業株式会社 | Hydrodynamic bearing |
-
2013
- 2013-05-16 CN CN201310180509.4A patent/CN103267064B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021233A (en) * | 2006-11-02 | 2007-08-22 | 湘潭市岳塘区兴盛液压机械配件加工厂 | Processing technology for deformed tiltable bush |
| CN201661606U (en) * | 2010-04-13 | 2010-12-01 | 上海申科滑动轴承有限公司 | Novel radial tilting-pad sliding bearing oil-feeding structure |
Non-Patent Citations (1)
| Title |
|---|
| 可倾瓦轴承的加工与装配;谭召生;《汽轮机技术》;20040630;第46卷(第3期);232-234 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103267064A (en) | 2013-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104228456B (en) | Intermediate supports formula Mecanum wheel wheel hub | |
| CN103267064B (en) | The mounting process of steam turbine bearing tilting bush | |
| CN104455105A (en) | Floating type brake pad | |
| JP2013142391A5 (en) | ||
| CN207514119U (en) | A kind of steel back structure of low eccentric wear | |
| CN205771680U (en) | Intelligent deviation-rectifying carrier roller | |
| CN104455104A (en) | Floating type brake pad | |
| CN103697091B (en) | Embedded brake pad | |
| CN204082916U (en) | A kind of new pattern rolling ball bearing | |
| CN203189482U (en) | Metal corrugated pad | |
| CN202065348U (en) | Subdivision type bearing bush | |
| CN204284212U (en) | Ball retainer monomer | |
| CN204327815U (en) | Floatation type brake pad | |
| CN204961698U (en) | Oven chain of high pass mobility ability | |
| CN204127119U (en) | Roller bearing | |
| CN104482054A (en) | Bearing of large high-speed rotary machine | |
| CN204003997U (en) | A kind of retainer of roller bearing | |
| CN208328567U (en) | A kind of railway rail pad used at railway curve | |
| CN106286579A (en) | The thrust articulated bearing structure of load sensor | |
| CN203130803U (en) | Novel bearing bush | |
| CN204756877U (en) | A slide structure for a boiler economizer supporting beam | |
| CN203926407U (en) | A kind of special construction graphite spacing block high temperature ball bearing | |
| CN207080524U (en) | A kind of release bearing with rubber ring | |
| CN201884470U (en) | Tilting bush structure of sliding bearing | |
| CN204387104U (en) | Vibration damper joint shaft bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20180516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |