CN105240060B - A kind of bearing seat of steam turbine support means - Google Patents
A kind of bearing seat of steam turbine support means Download PDFInfo
- Publication number
- CN105240060B CN105240060B CN201510659160.1A CN201510659160A CN105240060B CN 105240060 B CN105240060 B CN 105240060B CN 201510659160 A CN201510659160 A CN 201510659160A CN 105240060 B CN105240060 B CN 105240060B
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- CN
- China
- Prior art keywords
- sliding panel
- feather key
- support
- steam turbine
- installing hole
- 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
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- 210000003746 feather Anatomy 0.000 claims abstract description 56
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
- Support Of The Bearing (AREA)
Abstract
The embodiment of the invention discloses a kind of bearing seat of steam turbine support means, including support stand, sliding panel, sliding panel fixes bolt and spheric washer, support feather key it is additionally provided with between support stand and sliding panel, the upper surface of described support feather key contacts with the lower surface of described sliding panel, described support feather key lower surface contacts with the upper surface of described support stand, bolt is fixed corresponding with described sliding panel, it is provided with the first installing hole on described support feather key, it is provided with the second installing hole on the described support feather key corresponding with described spheric washer, the upper surface of described spheric washer has certain spacing with the lower surface of described sliding panel.The present invention supports described sliding panel by described support feather key, it is prevented effectively from the situation worn and torn by spheric washer in described sliding panel surface, and the abrasion of described threaded block declines, with rigidity, the spheric washer caused and contacts non-uniform phenomenon with described sliding panel, improve the stability of Steam Turbine operation.
Description
Technical field
The present invention relates to the assembling device technique field of stem-driven turboblower in metallurgy industry, particularly relate to a kind of steam turbine bearing
Seat supports device.
Background technology
Being provided with bearing block in Steam Turbine, be used for supporting the bearing of steam turbine, described bearing block fixes described bearing
Outer ring, only allows bearing inner race rotation, bearing outer ring remain stationary as, meanwhile, in order to ensure that described Steam Turbine operated
The even inflation of bearing block described in journey and steady running, be additionally provided with the support means for bearing seat of steam turbine.
At present, bearing seat of steam turbine support means mainly uses the convenient adjustable threaded block adjusted and spheric washer to prop up
The combination unit of support.As depicted in figs. 1 and 2, for the basic structure of bearing seat of steam turbine support means of the prior art
Schematic diagram, this support means is made up of symmetrically arranged first support means and the second support means, wherein, described first
Support means and the second support means all include: bearing stand 01, be positioned at the sliding panel above described bearing stand 01
02, run through described sliding panel 02 and described sliding panel 02 is fixed on the sliding panel of described bearing stand 01 fixes bolt
03, the backing plate 04 above described sliding panel 02 it is arranged on, for adjusting the threaded block 05 of described sliding panel 02 height, using
Bolt 07 is fixed in the spheric washer 06 and threaded block supporting described sliding panel 02.Described support means is provided with altogether
Four described spheric washers 06, and described sliding panel 02 relies on four described spheric washer 06 holding levels, described cunning
Dynamic plate is fixed bolt 03 and is between the part in described sliding panel 02 and described sliding panel and leaves expansion clearance, in institute
State bearing block 08 when expanding, promote described sliding panel 02 to move, by leaving described expansion clearance, can ensure described
The even inflation of bearing block 08.
Along with the aging of Steam Turbine with overhaul adjustment frequently, thread abrasion and the rigidity of described threaded block 05 can be caused
Declining, and then cause four described spheric washers 06 to contact uneven with described sliding panel 02, described Steam Turbine is run
Shi Zhendong increases；Further, since long-play, described sliding panel 02 and the contact position meeting of described spheric washer 06
Ground groove by described spheric washer 06, cause the non-homogeneous expansion of described bearing block 08, described bearing block 08, bearing and
The axis of cylinder is inconsistent, causes bearing shell vibration to increase.
Summary of the invention
The embodiment of the present invention provides a kind of bearing seat of steam turbine support means, to solve support means of the prior art
Along with Steam Turbine runs the prolongation of time, the aging caused spheric washer of threaded block contact with sliding panel uneven, with
And spheric washer abrasion sliding panel, the problem causing Steam Turbine fluctuation of service.
In order to solve above-mentioned technical problem, the embodiment of the invention discloses following technical scheme:
A kind of bearing seat of steam turbine support means, fixes bolt and spheric washer including support stand, sliding panel, sliding panel,
Support feather key it is additionally provided with, wherein between support stand and sliding panel:
The upper surface of described support feather key contacts with the lower surface of described sliding panel, and described support feather key lower surface is with described
The upper surface of support stand contacts；
Fix with described sliding panel bolt corresponding, be provided with the first installing hole on described support feather key, described first peace
The diameter in dress hole fixes the diameter of bolt stud more than described sliding panel；
The second installing hole it is provided with, described second installing hole straight on the described support feather key corresponding with described spheric washer
Footpath is more than the diameter of described spheric washer upper surface；
The upper surface of described spheric washer has certain spacing with the lower surface of described sliding panel.
Preferably, described second installing hole is half opening formula installing hole, and the opening of described second installing hole is towards described steamer
Arbor bearing.
Preferably, described support feather key is additionally provided with louvre, described louvre be arranged on two described first installing holes it
Between.
Preferably, the spacing between upper surface and the lower surface of described sliding panel of described spheric washer is more than or equal to 2mm.
Preferably, the shape of described first installing hole and described second installing hole includes circle, square or oval.
Preferably, described support feather key is that chrome molybdenum steel plate supports feather key.
Preferably, the thickness of described support feather key is 20-40mm.
Preferably, a length of 300-400mm of described support feather key, width are 50-60mm.
From above technical scheme, a kind of bearing seat of steam turbine support means that the embodiment of the present invention provides, including supporting
Stand, sliding panel, sliding panel fix bolt and spheric washer, are additionally provided with support sliding between support stand and sliding panel
Key, the upper surface of described support feather key contacts with the lower surface of described sliding panel, and described support feather key lower surface is with described
The upper surface of support stand contacts, fix with described sliding panel bolt corresponding, be provided with on described support feather key
One installing hole, the described support feather key corresponding with described spheric washer is provided with the second installing hole, described spheric washer
The lower surface of upper surface and described sliding panel there is certain spacing.Supporting way to sliding panel, the present embodiment is by institute
The support of four points stating spheric washer changes described support feather key into and supports, and increases described sliding panel and described support feather key
Between contact area, reduce the described sliding panel pressure to described support feather key accordingly, it is to avoid described sliding panel
The situation that surface is worn；Meanwhile, use the face supporting way of described support feather key, will not occur again because of described threaded block
Thread abrasion and rigidity decline, cause support means to contact uneven phenomenon with described sliding panel.With prior art phase
Ratio, the present invention, using described support feather key as support means, spheric washer as the device of the level of adjustment, is ensureing installation
Overhaul easy to adjust quickly on the basis of, improve rigidity and the intensity of bearing pedestal supporting device, it is ensured that bearing block uniform
Expand, and then improve the stability that Steam Turbine is run.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In technology description, the required accompanying drawing used is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the basic structure schematic diagram of bearing seat of steam turbine support means of the prior art；
Fig. 2 is the partial structurtes schematic diagram of the bearing seat of steam turbine support means in Fig. 1；
The basic structure schematic diagram of a kind of bearing seat of steam turbine support means that Fig. 3 provides for the embodiment of the present invention；
Fig. 4 is the partial structurtes schematic diagram of the bearing seat of steam turbine support means in Fig. 3；
Fig. 5 is the partial structurtes schematic diagram of Fig. 4；
A kind of basic structure schematic diagram supporting feather key that Fig. 6 provides for the embodiment of the present invention；
The another kind of basic structure schematic diagram supporting feather key that Fig. 7 provides for the embodiment of the present invention；
The basic structure schematic diagram of another support feather key that Fig. 8 provides for the embodiment of the present invention.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in the present invention, implement below in conjunction with the present invention
Accompanying drawing in example, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described reality
Executing example is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that territory those of ordinary skill is obtained under not making creative work premise, all should belong to this
The scope of invention protection.
See Fig. 3, the basic structure schematic diagram of a kind of bearing seat of steam turbine support means provided for the embodiment of the present invention,
This support means is made up of symmetrically arranged first support means and the second support means, as shown in Figure 4, and described first
Support arrangement and the second support means all include: bearing stand 1, be positioned at the sliding panel 2 above described bearing stand 1, pass through
Wear described sliding panel 2 and described sliding panel 2 is fixed on the sliding panel of described bearing stand 1 fixes bolt 3, be arranged on
Backing plate 4, threaded block 5, spheric washer 6 and threaded block above described sliding panel 2 fixes bolt 7, meanwhile, in institute
State and between support stand 1 and sliding panel 2, be additionally provided with support feather key 8, the upper surface of described support feather key 8 and described cunning
The lower surface of dynamic plate 2 contacts, and described support feather key 8 lower surface contacts with the upper surface of described support stand 1, as
Shown in Fig. 6, fix with described sliding panel bolt 3 corresponding, be provided with the first installing hole 81 on described support feather key 8,
Corresponding with described spheric washer 6, be provided with the second installing hole 82 on described support feather key 8.
Meanwhile, the upper surface of described spheric washer 6 has certain interval S 3, so with the lower surface of described sliding panel 2
Support described sliding panel 2 by described support feather key 8, compared with the supporting way using spheric washer, increase described
Contact area between sliding panel 2 and described support feather key 8, reduces described sliding panel 2 accordingly and slides described support
The pressure of key 8, it is to avoid the situation that described sliding panel 2 surface is worn.Meanwhile, described threaded block 5, described sphere
Packing ring 6 and described threaded block fix bolt 7 when unit maintenance, play the effect regulating described sliding panel 2 level, tool
Body regulation process is first to unclamp described threaded block and fix bolt 7, adjusts the rising of described threaded block 5 and makes described spheric washer 6
Contact described sliding panel 2, take out described support feather key 8, then adjust four described threaded blocks 5 to described sliding panel 2
The parameter such as level be adjusted, after adjustment, measure processing, grind after described support feather key 8 to qualified size again
Load；After unit maintenance completes, described threaded block 5 is screwed in downwards certain distance, it is ensured that described spheric washer 6 and institute
State and there is between sliding panel 2 certain interval S 3, then tighten described threaded block and fix bolt 7.Owing to steam turbine is in work
Process bearing temperature can raise, and the temperature of corresponding described support means also can raise, in order to ensure described spheric washer 6
Will not contact with described sliding panel 2 because of thermal expansion, the upper surface of described spheric washer 6 and the following table of described sliding panel 2
Interval S 3 between face is more than or equal to 2mm.
In order to prevent described support feather key 8 because of thermal expansion, fix bolt 3 and described ball ring to being located in described sliding panel
Circle 6 extruding, causes the internal stress of described support means to increase, and described in the present embodiment, the diameter of the first installing hole 81 is more than
Described sliding panel fixes the diameter of bolt 3 stud, and meanwhile, the diameter of described second installing hole 82 is more than described spheric washer
The diameter of 6 upper surfaces.Meanwhile, the shape of described first installing hole 81 and described second installing hole 82 can be designed as circle
Shape, square or oval etc..
As it is shown in fig. 7, the installment work of the most described support feather key 8, described second installing hole 82 is designed as half
The installing hole of open type, and the opening of described second installing hole 82 is towards described bearing seat of steam turbine.So at unit maintenance
Time, it is only necessary to first unclamp described threaded block and fix bolt 7, adjust the rising of described threaded block 5 and make described spheric washer 6 contact
Described sliding panel 2, fixes described sliding panel bolt 3 spin-up simultaneously and makes its stud no longer be located in described support cunning
In key 8, the most just can be directly loadable into or extract out described support feather key 8 from the side of described support means.Certainly, institute
State the first installing hole 81 and may be designed in the installing hole of half opening formula, and the opening of described first installing hole 81 is towards institute
State bearing seat of steam turbine, so when unit maintenance, it is also possible to save the work that described sliding panel is fixed bolt 3 spin-up.
Further, as shown in Figure 8, described support feather key 8 is additionally provided with louvre 83, and described louvre 83 is arranged
Between two described first installing holes 81, the shape of described louvre 83 include circle, square, oval and its
Its arbitrary shape, meanwhile, the number of described louvre 83 can also be multiple.
In order to ensure rigidity and the intensity of described support means, described support feather key 8 uses thermostability and mechanical performance good
Good chrome molybdenum steel plate supports.The thickness of described support feather key 8 is according between described bearing stand 1 and described sliding panel 2
Pitch requirements is designed as 20-40mm, and the Design of length of described support feather key 8 is 300-400mm, width design is
50-60mm, is certainly not limited to above-mentioned numerical range, it addition, the shape of described support feather key 8 is also not limited to this enforcement
The rectangle that example provides.
The bearing seat of steam turbine support means using the present embodiment to provide, is placed in bearing block in described support means, such as figure
Shown in 5, fix the stud of bolt 7 due to described threaded block and leave expansion clearance S2 with the screwed hole in described sliding panel 2,
And described threaded block fixes and leaves expansion clearance S1 between the nut of bolt 7 and described backing plate 4, thus swollen at bearing block 9
Time swollen, described sliding panel 2 can be promoted to move on described support feather key 8, and then ensure the uniform of described bearing block 9
Expand, improve rigidity and the stability of unit operation, thus solve the problem that turbine bearing pad vibration is big.
It should be noted that in this article, such as the relational terms of " first " and " second " or the like be used merely to by
One entity or operation separate with another entity or operating space, and not necessarily require or imply these entities or behaviour
Relation or the order of any this reality is there is between work.And, term " includes ", " comprising " or it is any
Other variants are intended to comprising of nonexcludability so that include the process of a series of key element, method, article or
Equipment not only includes those key elements, but also includes other key elements being not expressly set out, or also includes for this mistake
The key element that journey, method, article or equipment are intrinsic.In the case of there is no more restriction, statement " include one
It is individual ... " key element that limits, it is not excluded that there is also in including the process of described key element, method, article or equipment
Other identical element.
The above is only the detailed description of the invention of the present invention, makes to skilled artisans appreciate that or realize the present invention.
Multiple amendment to these embodiments will be apparent to one skilled in the art, and as defined herein one
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, this
The bright the embodiments shown herein that is not intended to be limited to, and be to fit to and principles disclosed herein and features of novelty
The widest consistent scope.
Claims (8)
1. a bearing seat of steam turbine support means, fixes bolt including support stand (1), sliding panel (2), sliding panel
(3) and spheric washer (6), it is characterised in that between support stand (1) and sliding panel (2), be additionally provided with support
Feather key (8), wherein:
The upper surface of described support feather key (8) contacts with the lower surface of described sliding panel (2), described support feather key (8)
Lower surface contacts with the upper surface of described support stand (1)；
Fix with described sliding panel bolt (3) corresponding, be provided with the first installing hole (81) on described support feather key (8),
The diameter of described first installing hole (81) fixes the diameter of bolt (3) stud more than described sliding panel；
It is provided with the second installing hole (82) on the described support feather key (8) corresponding with described spheric washer (6), described
The diameter of the second installing hole (82) is more than the diameter of described spheric washer (6) upper surface；
The upper surface of described spheric washer (6) has certain spacing with the lower surface of described sliding panel (2).
Bearing seat of steam turbine support means the most according to claim 1, it is characterised in that described second installing hole (82)
For half opening formula installing hole, the opening of described second installing hole (82) is towards described bearing seat of steam turbine.
Bearing seat of steam turbine support means the most according to claim 1 and 2, it is characterised in that described support feather key
(8) being additionally provided with louvre (83), described louvre (83) is arranged between two described first installing holes (81).
Bearing seat of steam turbine support means the most according to claim 1, the upper surface of described spheric washer (6) with
Spacing between the lower surface of described sliding panel (2) is more than or equal to 2mm.
Bearing seat of steam turbine support means the most according to claim 1, it is characterised in that described first installing hole (81)
Circle, square or oval is included with the shape of described second installing hole (82).
Bearing seat of steam turbine support means the most according to claim 1 and 2, it is characterised in that described support feather key
(8) it is that chrome molybdenum steel plate supports feather key.
Bearing seat of steam turbine support means the most according to claim 1 and 2, it is characterised in that described support feather key
(8) thickness is 20-40mm.
Bearing seat of steam turbine support means the most according to claim 1 and 2, it is characterised in that described support feather key
(8) a length of 300-400mm, width are 50-60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510659160.1A CN105240060B (en) | 2015-10-13 | 2015-10-13 | A kind of bearing seat of steam turbine support means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510659160.1A CN105240060B (en) | 2015-10-13 | 2015-10-13 | A kind of bearing seat of steam turbine support means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105240060A CN105240060A (en) | 2016-01-13 |
| CN105240060B true CN105240060B (en) | 2016-11-30 |
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ID=55037851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510659160.1A Expired - Fee Related CN105240060B (en) | 2015-10-13 | 2015-10-13 | A kind of bearing seat of steam turbine support means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105240060B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032075B (en) * | 2020-08-07 | 2021-12-14 | 上海电气（集团）总公司 | Support device for ultra-low temperature thermal decoupling turbine rotor |
| CN112609065B (en) * | 2020-12-10 | 2022-11-15 | 武汉钢铁有限公司 | Carbon sleeve roller |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4755071B2 (en) * | 2006-11-20 | 2011-08-24 | 三菱重工業株式会社 | Exhaust turbocharger |
| DE102008033758B3 (en) * | 2008-07-18 | 2009-12-10 | Siemens Aktiengesellschaft | Bearing assembly and bearing block with a magnetic radial bearing and a backup bearing for a rotating machine |
| JP5047130B2 (en) * | 2008-11-18 | 2012-10-10 | 三菱重工業株式会社 | Turbine casing support structure |
| CN202427483U (en) * | 2011-12-27 | 2012-09-12 | 中国中材国际工程股份有限公司 | Sliding key swing mechanism for movable roller bearing seat of roller press |
| FR2993024B1 (en) * | 2012-07-06 | 2014-08-08 | Snecma | TURBOMACHINE BEARING SEAL SEAL DEVICE WITH TWO ELASTIC JOINTS |
| CN204163921U (en) * | 2014-10-09 | 2015-02-18 | 成都天保重型装备股份有限公司 | The guide bearing block supporting structure of turbine-generator units |
| CN205000998U (en) * | 2015-10-13 | 2016-01-27 | 山东钢铁股份有限公司 | Steam turbine bearing frame strutting arrangement |
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2015
- 2015-10-13 CN CN201510659160.1A patent/CN105240060B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN105240060A (en) | 2016-01-13 |
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