CN207139725U - The face that turbine rotor is hinged with band contacts bearing support - Google Patents
The face that turbine rotor is hinged with band contacts bearing support Download PDFInfo
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- CN207139725U CN207139725U CN201720454760.9U CN201720454760U CN207139725U CN 207139725 U CN207139725 U CN 207139725U CN 201720454760 U CN201720454760 U CN 201720454760U CN 207139725 U CN207139725 U CN 207139725U
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- supporting head
- turbine rotor
- face
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Abstract
The utility model provides the face that a kind of turbine rotor is hinged with band and contacts bearing support, belongs to turbine rotor support apparatus technical field.It solves the problems such as prior art design is unreasonable.The face contact bearing support that this turbine rotor is hinged with band includes fulcrum bearing, and fulcrum bearing both sides are respectively provided with one in the articulated structure being correspondingly arranged, and the supporting that a supporting rotor is respectively provided between each articulated structure and rotor is first-class.The advantages of face contact bearing support that this turbine rotor is hinged with band, is：The setting of articulated structure makes the rotatable certain angle of supporting head; to adapt to different size of rotor bearing; improve its scope of application; the fork-shaped of arc-shaped concave and supporting head sets the stability for improving to rotor bearing dynamics, improving operation; the setting of protective layer protects the finish of supporting head and rotor surface, extends service life.
Description
Technical field
The utility model belongs to turbine rotor support apparatus technical field, more particularly, to a kind of turbine rotor band
The face contact bearing support being hinged.
Background technology
For turbine rotor as a kind of long workpiece, because rotor weight is up to 20~70 tons, rotor diameter of axle hardness is low, is HB
=240~280, it is higher to the smoothness requirements on surface, need to be arranged on special branch up to 0.4 micron, when rotor machining or maintenance
On bolster, therefore the requirement to bearing support is higher.According in general sliding supported condition frame, due to sliding bearing frictional force phase
On the larger indexing accuracy that will influence rotor, the oil film change of hydrostatic bearing also influences indexing accuracy.Sliding bearing branch simultaneously
Contact of the bolster with rotor is that point contacts, and contact stress is very big, and rotor especially is hung onto into bearing support in a flash, and it connects
Tactile stress is more likely to be reached tons up to a hundred, careless slightly rotor surface feather plucking to be influenceed into rotor surface finish.
In order to solve the problems, such as that prior art is present, people have carried out long-term exploration, it is proposed that miscellaneous solution
Scheme.For example, Chinese patent literature discloses a kind of idler frame [application number of turbine rotor with spheric seating：
02265124.1], including fulcrum bearing, it is engaged it is characterized in that being provided with cancave cambered surface above fulcrum bearing with spheric seating, spheric seating bottom
Groove is axially provided with along steam turbine rotor shaft, and spheric seating lower recess is engaged with being fixed on fulcrum bearing Shangdi bearing pin and can be along turning
Sub- axle axial movement, two rollers are housed along armature spindle axial line is relative on spheric seating top, one layer of soft material is coated on roller
Matter contacts with rotor.
Above-mentioned scheme improve to a certain extent prior art supporting force it is small the problem of, still, the program is also extremely
Following defect less be present：It is small to the size accommodation of the rotor of supporting, and with the contact surface of rotor is small is easily caused to bearing support
Abrasion, the problems such as service life is short.
Utility model content
The purpose of this utility model is in view of the above-mentioned problems, providing a kind of reasonable in design, using effect good steam turbine turn
The face that son is hinged with band contacts bearing support.
To reach above-mentioned purpose, the utility model employs following technical proposal：Turbine rotor of the present utility model is used
The face contact bearing support that band is hinged, including fulcrum bearing, it is characterised in that：It is in what is be correspondingly arranged that fulcrum bearing both sides, which are respectively provided with one,
Articulated structure, is respectively provided with the supporting head of a supporting rotor between each articulated structure and rotor, respective on two supporting heads
Close to the one of each close articulated structure being more than apart from sum on two supporting heads of one end of articulated structure to rotor center
The distance between end.The setting of articulated structure can make the different size of rotor of this branching bolster supporting, enhance application.
Preferably, articulated structure includes at least one hinged seat located at fulcrum bearing side, and hinged seat is provided with the first hinge
Hole is connect, supporting head is provided with the second hinge hole adjacent to hinged seat one end, energy is inserted between the first hinge hole and the second hinge hole
The swivel pin for making supporting head be rotated relative to hinged seat.It is simple in construction, be easy to manufacture, install.
Preferably, the number of hinged seat is 2 and is set in distance, one end position adjacent with two hinged seats on supporting head
Between two hinged seats and be hinged pin connection.The stability and fastness of supporting head operation are improved, makes it to rotor
Support effects are more preferable.
Preferably, hinged seat is convexly equipped in the plane at the top of fulcrum bearing, and the bottom of the first hinge hole is higher than at the top of fulcrum bearing
Plane.Hinged seat projection sets and enhances slewing area of the supporting head relative to hinged seat, so as to further be suitable for more
More different size of rotor bearings.
Preferably, hinged seat is connected as a single entity with fulcrum bearing.The bonding strength of hinged seat is improved, so as to indirectly improve
The fastness of supporting of the supporting head to rotor.
Preferably, the contravention that connects on supporting head with rotor is provided with the arc-shaped concave being adapted with rotor surface.Arc-shaped concave
Setting not only increase contact area with rotor, while supporting head is preferably cooperated in supporting rotor,
Reduction is lost in bearing state to both caused by extruding, rubbing, and improves service life.
Preferably, the protective layer for the finish for being covered with one layer of protection rotor surface is set on arc-shaped concave.Protective layer is set
The protection for the finish for further increasing the surface to supporting head and rotor is put, extends service life, improves and utilizes effect
Rate.
Preferably, protective layer is the babbit of casting or the low flexible material of ratio rotor stiffness of cladding.It is easy to make
Make, production cost it is low.
Preferably, the cross section of supporting head is in fork-shaped, and remote jaw one end on supporting head is connected with hinged seat.Supporting head
Fork-shaped set, further increase to rotor bearing dynamics, improve the stability of operation.
Compared with prior art, the advantages of face contact bearing support that this turbine rotor is hinged with band, is：Be hinged knot
The setting of structure makes the rotatable certain angle of supporting head, to adapt to, to different size of rotor bearing, improve its scope of application, arc
The fork-shaped of shape concave surface and supporting head sets the stability for improving to rotor bearing dynamics, improving operation, the setting of protective layer
The finish of supporting head and rotor surface is protected, extends service life.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 provides the front view in the utility model embodiment.
Fig. 2 provides the side view in the utility model embodiment.
In figure, fulcrum bearing 1, articulated structure 2, hinged seat 21, the first hinge hole 22, the second hinge hole 23, swivel pin 24, branch
Take the lead 4, arc-shaped concave 41, rotor 5.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by embodiment, and following examples are pair
It is of the present utility model explanation and the utility model is not limited to following examples.
As shown in Fig. 1 to 2, the face that this turbine rotor is hinged with band contacts bearing support, including fulcrum bearing 1, its feature
It is：The both sides of fulcrum bearing 1 are respectively provided with one in the articulated structure 2 being correspondingly arranged, and are respectively set between each articulated structure 2 and rotor 5
Have a supporting head 4 of a supporting rotor 5, on two supporting heads 4 each close to one end to the center of rotor 5 of articulated structure 2
It is more than the distance between one end of each close articulated structure 2 on two supporting heads 4, the setting of articulated structure 2 apart from sum
The different size of rotor of this branching bolster supporting can be made, enhance application.
Specifically, articulated structure 2 here includes at least one hinged seat 21 located at the side of fulcrum bearing 1, hinged seat 21
The first hinge hole 22 is provided with, supporting head 4 is provided with the second hinge hole 23, the first hinge hole 22 and adjacent to the one end of hinged seat 21
It is inserted with the swivel pin 24 that supporting head 4 can be made to be rotated relative to hinged seat 21 between two hinge holes 23, it is simple in construction, be easy to make
Make, install；Here the number of hinged seat 21 is 2 and to be set in distance, adjacent with two hinged seats 21 one on supporting head 4
End connects between two hinged seats 21 and with swivel pin 24, improves the stability and fastness of the operation of supporting head 4, makes it
It is more preferable to the support effects of rotor；Here hinged seat 21 is convexly equipped in the plane at the top of fulcrum bearing 1, the bottom of the first hinge hole 22
Portion sets higher than the plane at the top of fulcrum bearing 1, the projection of hinged seat 21 and enhances rotation model of the supporting head 4 relative to hinged seat 21
Enclose, so as to further be suitable for more different size of rotor bearings；Here hinged seat 21 is linked as one with fulcrum bearing 1
Body, the bonding strength of hinged seat 21 is improved, so as to indirectly improve the fastness of supporting of the supporting head 4 to rotor 5；Here
Supporting head 4 on the contravention that connects of rotor 5 be provided with the arc-shaped concave 41 that is adapted with the surface of rotor 5, the setting of arc-shaped concave 41
The contact area with rotor 5 is not only increased, while supporting head 4 is preferably cooperated in supporting rotor 5, is reduced
Both are lost caused by extruding, rubbing in bearing state, improves service life.
Further, the protective layer for the finish for being covered with one layer of protection rotor 5 surface is set on arc-shaped concave 41 here,
The setting of protective layer further increases the protection of the finish on the surface to supporting head 4 and rotor 5, extends service life,
Improve utilization ratio；Here protective layer is the low flexible material of ratio 5 hardness of rotor for the babbit or cladding cast,
It is easy to manufacture, production cost low, it is preferable that the hardness of flexible material is 1/3rd or so of the material hardness of rotor 5, due to turning
Sub 5 hardness are HB=240~280, therefore the Facing material hardness of supporting head 4 is HB=80~100, supporting head in the implementation case
The material of the flexible material of 4 cladding is phosphor bronze；Here the cross section of supporting head 4 is in fork-shaped, the remote fork on supporting head 4
First end is connected with hinged seat 21, and the fork-shaped of supporting head 4 is set, and is further increased to the supporting dynamics of rotor 5, is improved operation
Stability.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more use fulcrum bearing 1, articulated structure 2, hinged seat 21, the first hinge hole 22, second be hinged herein
The terms such as hole 23, swivel pin 24, supporting head 4, arc-shaped concave 41, rotor 5, but it is not precluded from the possibility using other terms.
It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；It is construed as any one
Additional limitation is all disagreed with the utility model spirit.
Claims (9)
1. the face that a kind of turbine rotor is hinged with band contacts bearing support, including fulcrum bearing（1）, it is characterised in that：Described
Fulcrum bearing（1）Both sides are respectively provided with one in the articulated structure being correspondingly arranged（2）, each described articulated structure（2）With rotor（5）
Between be respectively provided with a supporting rotor（5）Supporting head（4）, the supporting head described in two（4）On each close to articulated structure
（2）One end to rotor（5）The supporting head being more than apart from sum described in two at center（4）On each close to articulated structure
（2）The distance between one end.
2. the face that turbine rotor according to claim 1 is hinged with band contacts bearing support, it is characterised in that described
Articulated structure（2）Including located at fulcrum bearing（1）At least one hinged seat of side（21）, described hinged seat（21）It is provided with the
One hinge hole（22）, described supporting head（4）Adjacent to hinged seat（21）One end is provided with the second hinge hole（23）, described first
Hinge hole（22）With the second hinge hole（23）Between be inserted with and can make supporting head（4）Relative to hinged seat（21）The swivel pin of rotation
（24）.
3. the face that turbine rotor according to claim 2 is hinged with band contacts bearing support, it is characterised in that described
Hinged seat（21）Number 2 and to be set in distance, described supporting head（4）Upper and two hinged seats（21）Adjacent one end
Positioned at two hinged seats（21）Between and use swivel pin（24）Connection.
4. the face that turbine rotor according to claim 2 is hinged with band contacts bearing support, it is characterised in that described
Hinged seat（21）It is convexly equipped in fulcrum bearing（1）In the plane at top, the first described hinge hole（22）Bottom be higher than fulcrum bearing（1）
The plane at top.
5. the face that turbine rotor according to claim 2 is hinged with band contacts bearing support, it is characterised in that described
Hinged seat（21）With fulcrum bearing（1）It is connected as a single entity.
6. the face that turbine rotor according to any one of claims 1 to 5 is hinged with band contacts bearing support, its feature exists
In described supporting head（4）Upper and rotor（5）The contravention that connects is provided with and rotor（5）The arc-shaped concave that surface is adapted（41）.
7. the face that turbine rotor according to claim 6 is hinged with band contacts bearing support, it is characterised in that described
Arc-shaped concave（41）On set be covered with one layer protection rotor（5）The protective layer of the finish on surface.
8. the face that turbine rotor according to claim 7 is hinged with band contacts bearing support, it is characterised in that described
Protective layer is the babbit of casting or the ratio rotor of cladding（5）The low flexible material of hardness.
9. the face that turbine rotor according to claim 1 is hinged with band contacts bearing support, it is characterised in that described
Supporting head（4）Cross section be in fork-shaped, described supporting head（4）On remote jaw one end and hinged seat（21）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454760.9U CN207139725U (en) | 2017-04-27 | 2017-04-27 | The face that turbine rotor is hinged with band contacts bearing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454760.9U CN207139725U (en) | 2017-04-27 | 2017-04-27 | The face that turbine rotor is hinged with band contacts bearing support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207139725U true CN207139725U (en) | 2018-03-27 |
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ID=61659255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720454760.9U Active CN207139725U (en) | 2017-04-27 | 2017-04-27 | The face that turbine rotor is hinged with band contacts bearing support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207139725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113811A (en) * | 2018-07-06 | 2019-01-01 | 华电电力科学研究院有限公司 | A kind of steam turbine pedestal and its installation method |
-
2017
- 2017-04-27 CN CN201720454760.9U patent/CN207139725U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113811A (en) * | 2018-07-06 | 2019-01-01 | 华电电力科学研究院有限公司 | A kind of steam turbine pedestal and its installation method |
| CN109113811B (en) * | 2018-07-06 | 2023-09-08 | 华电电力科学研究院有限公司 | Base frame for steam turbine and installation method thereof |
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