CN208348304U - The thrust surface lubrication system of steam turbine bearing - Google Patents
The thrust surface lubrication system of steam turbine bearing Download PDFInfo
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- CN208348304U CN208348304U CN201621215117.2U CN201621215117U CN208348304U CN 208348304 U CN208348304 U CN 208348304U CN 201621215117 U CN201621215117 U CN 201621215117U CN 208348304 U CN208348304 U CN 208348304U
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- oil
- thrust surface
- bearing
- supply tank
- steam turbine
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Abstract
The utility model belongs to the thrust surface lubrication system of field of mechanical technique more particularly to a kind of steam turbine bearing.It solves the prior art and designs the technical problems such as unreasonable.The thrust surface lubrication system of this bearing includes bearing body and the annular thrust surface that is set on bearing body, annular thrust surface is equipped with the butting section to lean for the thrust surface lubrication system body with axis steam turbine bearing, several oil film wedge faces are additionally provided between annular thrust surface and axis body, oil pocket is formed between oil film wedge face and axis body, and the oil supply tank being connected to oil pocket is respectively equipped on each oil film wedge face, oil supply tank one end is connected with oil-inlet mechanism, and the oil supply tank other end is connected with oil outlet mechanism.The utility model advantage is: 1, it is more reasonable to design, and oil film is formed between bearing and axis body, and thrust surface can obtain stable lubrication always, effectively prevent thrust surface wear, improves service performance.2, lubricating oil carries out circulation lubrication, and lubricant can be cooled down, and can not only further promote to radiate, economize on resources simultaneously, reduce cost.
Description
Technical field
The utility model belongs to the thrust surface lubrication system of field of mechanical technique more particularly to a kind of steam turbine bearing.
Background technique
Steam turbine is one of power-equipment important in industrial production, and the bearing of steam turbine is the important composition of Steam Turbine
Component, the bearing of steam turbine are mainly used for supporting mechanical rotary body, reduce the coefficient of friction in its motion process, and guarantee its time
Turn precision.But since steam turbine loads larger, long operational time, currently used plain bearing structure is not able to satisfy turbine shaft
The need of work held, the contact surface between bearing and axis body often cannot keep enough lubricating oil and be lubricated, and cause bearing
Surface abrasion is serious, damages to self structure and equipment, in addition, generating a large amount of heat not after heavy-duty service
It easily sheds, bearing rigidity is deteriorated, and shock resistance is deteriorated, and may damage and influence equipment operation at any time, greatly reduce equipment
Operation stability.Of the existing technology in order to solve the problems, such as, people have carried out long-term exploration, propose miscellaneous solution
Certainly scheme.
For example, Chinese patent literature discloses a kind of sliding bearing [application number: 201180018539.4], including one
The second sliding being axially connected to around the first sliding axle bearing portion point of the axis and one in the first sliding axle bearing portion point
Bearing portions.The thermal expansion coefficient of the second sliding axle bearing portion point is greater than the thermal expansion coefficient of the first sliding axle bearing portion point.
Above-mentioned scheme improves the subproblem of the prior art to a certain extent, and still, the program also at least exists
Following defect: design is unreasonable, enough lubrications cannot be accessed between axis and the contact surface of sliding bearing, poor radiation connects
Contacting surface temperature is high, sliding bearing degradation, and the technical issues of serious wear.
Utility model content
The purpose of this utility model is the service performance in view of the above-mentioned problems, provide a kind of design more reasonable, high lubricating effect
The thrust surface lubrication system of good steam turbine bearing.
In order to achieve the above objectives, the utility model uses following technical proposal: the thrust surface lubrication of this steam turbine bearing
Structure includes bearing body and the annular thrust surface that is set on bearing body, which is characterized in that the annular thrust surface is equipped with
Butting section for leaning with axis body is additionally provided with several oil film wedge faces between the annular thrust surface and axis body, described
Oil pocket is formed between oil film wedge face and axis body, and the oil supply tank being connected to oil pocket, the fuel feeding are respectively equipped on each oil film wedge face
Slot one end is connected with oil-inlet mechanism, and the oil supply tank other end is connected with oil outlet mechanism.
In the thrust surface lubrication system of above-mentioned steam turbine bearing, the oil film wedge face along circumferential direction from oil supply tank to
Play the role of convergence to oil in butting section；Radially oil is played to bearing body outside from the inside of bearing body in the oil film wedge face
Convergence effect.
In the thrust surface lubrication system of above-mentioned steam turbine bearing, the oil film wedge face is successively spaced with butting section to be set
It sets.
In the thrust surface lubrication system of above-mentioned steam turbine bearing, the corresponding radian in oil film wedge face and butting section pair
The ratio for the radian answered is (2.5-3): 1.
In the thrust surface lubrication system of above-mentioned steam turbine bearing, the oil supply tank is elongated and the length of oil supply tank
Degree direction is consistent with the annular radial direction of thrust surface, and one end that the oil supply tank is located on the inside of annular thrust surface, which is equipped with, to be oriented to
Mouthful.
In the thrust surface lubrication system of above-mentioned steam turbine bearing, the oil outlet mechanism includes being connected to oil supply tank
Oil groove out, the fuel-displaced slot is located remotely from one end of targeting port and oil groove cross section is less than the cross section of oil supply tank out.
In the thrust surface lubrication system of above-mentioned steam turbine bearing, the oil supply mechanism includes at least one oil storage group
Part, each oil storage component includes oil storage tank, and the oil storage tank is set to the inner wall of bearing body, and described oil storage tank one end passes through
Oil supply gallery is connected with oil supply tank, and the oil storage tank other end is connected with oil inlet passage.
In the thrust surface lubrication system of above-mentioned steam turbine bearing, the oil supply gallery includes being set on bearing body
Circular passage, the circular passage side is connected with oil supply tank, and the circular passage other side is by dividing oil groove and storage
Oil groove is connected.
In the thrust surface lubrication system of above-mentioned steam turbine bearing, the oil inlet passage is through bearing body.
In the thrust surface lubrication system of above-mentioned steam turbine bearing, the bearing body is equipped with for positioning bearing body
Location hole, be equipped with alloy stiffening ring on the outside of the bearing body
Compared with prior art, the advantages of thrust surface lubrication system of this steam turbine bearing is: 1, it is more reasonable to design,
Oil film is formed between bearing and axis body, thrust surface can obtain stable lubrication always, effectively prevent thrust surface wear, and raising makes
Use performance.2, lubricating oil carries out circulation lubrication, and lubricant can be cooled down, and can not only further promote to radiate, simultaneously
It economizes on resources, reduces cost.
Detailed description of the invention
Fig. 1 is schematic perspective view provided by the utility model.
Fig. 2 is main view provided by the utility model.
Fig. 3 is the cross-sectional view of A-A in Fig. 2.
In figure, bearing body 1, annular thrust surface 2, butting section 3, oil film wedge face 4, oil supply tank 5, oil-inlet mechanism 6, oil storage component
6a, oil storage tank 6b, oil supply gallery 6c, oil inlet passage 6d, divide oil groove 6e, oil outlet mechanism 7, targeting port 8, go out oil groove 9, location hole
10, alloy stiffening ring 11.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1-3, the thrust surface lubrication system of this steam turbine bearing includes bearing body 1 and is set on bearing body 1
Annular thrust surface 2, annular thrust surface 2 is equipped with butting section 3 for leaning with axis body, annular thrust surface 2 and axis body it
Between be additionally provided with several oil film wedge faces 4, oil film wedge face and butting section 2 are successively spaced setting, form oil pocket between oil film wedge face 4 and axis body,
And the oil supply tank 5 being connected to oil pocket is respectively equipped on each oil film wedge face 4,5 one end of oil supply tank is connected with oil-inlet mechanism 6, oil supply tank
5 other ends are connected with oil outlet mechanism 7.
Specifically, convergence is played the role of from oil supply tank 5 to 3 pairs of butting section oil along circumferential direction in oil film wedge face 4；4 edge of oil film wedge face
Radial direction plays the role of convergence to oil from 1 inside of bearing body to 1 outside of bearing body.Oil film wedge face 4 is successively spaced with butting section 3 and sets
It sets, while the ratio of the corresponding radian in oil film wedge face 4 radian corresponding with butting section 3 is (2.5-3): 1.Butting section and external shaft
Contact, with the rotation of axis body, the oil liquid positioned at oil film wedge face side can be lubricated butting section, and butting section and oil film wedge
Face is successively spaced setting, and therefore, the oil liquid positioned at oil film wedge face side can carry out fuel feeding and lubrication to contact portion always, drops significantly
Temperature when low bearing working and improve lubricity between the two.
In addition, oil supply tank 5 is elongated and the length direction of oil supply tank 5 is consistent with the annular radial direction of thrust surface 2, supply
One end that oil groove 5 is located at annular 2 inside of thrust surface is equipped with targeting port 8.And oil supply tank can be between the both sides of the edge of oil film wedge face
The oil supply tank of any position, optimization is located at oil film wedge face one side edge, after bearing is started to work, with the rotation of axis body, fuel feeding
The flow direction of oil liquid in slot 5 is perpendicular to radial direction, while the distribution of 5 notch of oil supply tank is vertical with rotation direction, therefore,
The strip notch direction of the oil supply tank 5 of strip more quickly can carry out fuel feeding to oil film wedge face.
Above-mentioned described oil outlet mechanism 7 includes the oil groove 9 out being connected to oil supply tank 5, and oil groove 9 is located remotely from targeting port 8 out
One end and out 9 cross section of oil groove be less than oil supply tank 5 cross section, while out the notch length of oil groove 9 be much smaller than oil supply tank 5
Notch length, therefore, oil groove 9 can prevent the oil liquid in oil groove 6 from occurring a large amount of excessive out, keep the oil liquid in oil groove right
Contact surface carries out effectively lubricating, while part oil liquid being discharged, and recycles oil liquid, oil liquid temperature is effectively reduced.
Further, which includes at least one oil storage component 6a, specific so-called 4 and uniform axial direction
Distribution, each oil storage component 6a includes oil storage tank 6b, and oil storage tank 6b is set to the inner wall of bearing body 1, and the one end oil storage tank 6b passes through
Oil supply gallery 6c is connected with oil supply tank 5, and the oil storage tank 6b other end is connected with oil inlet passage 6d, and oil inlet passage 6d is through bearing body
1.Oil supply gallery 6c includes the circular passage being set on bearing body 1, and circular passage side is connected with oil supply tank 5, between the two
It is connected to by targeting port 7, the circular passage other side is by dividing oil groove 6e to be connected with oil storage tank 6b, and when bearing working, axis body is inserted
Circumferentially closed channel is formed after entering into bearing, between circular passage and axis body.
In addition, being equipped with the location hole 10 for positioning bearing body 1 on bearing body 1, alloy is equipped on the outside of bearing body 1 and is reinforced
Circle 11, it is big due to being vibrated in steam turbine use process, become more steady when so that bearing body is mounted on bearing block by location hole 9
It is fixed, at the same bearing can be fixed in use by location hole and transportational process in it is easy to carry, alloy adds
Strong circle can enhance the wearability of annular thrust surface.
In the present embodiment, after axis body is inserted into bearing, oil pocket is formed between oil film wedge face and bearing to make axis
It holds and forms oil film between axis body, contact surface is lubricated and cools down, improve the service performance and service life of bearing.
The working principle of the thrust surface lubrication system of this steam turbine bearing is as follows, and oil liquid enters storage by oil inlet passage 6d
Oil liquid in oil groove 6b, oil storage tank 6b flow to the oil supply gallery 6c of annular, and is entered in oil supply tank 5 by targeting port 8, fuel feeding
Oil liquid in slot 5 flow to oil film wedge face and as the rotation of axis body forms oil film between bearing and axis body, thus to bearing surface
It is lubricated and cools down with axis body surface, reduce abrasion between the two, improve the service life of equipment, meanwhile, it is located at oil film wedge
Oil liquid in face is flowed out by going out oil groove 9, and oil groove 9 can prevent the oil liquid in oil groove 6 from occurring a large amount of excessive out, is made in oil groove
Oil liquid can carry out effectively lubricating to contact surface, while part oil liquid being discharged, recycles oil liquid, oil liquid is effectively reduced
The oil liquid of temperature, discharge can still be continued to use by filtering and purification.
Although bearing body 1, annular thrust surface 2, butting section 3, oil film wedge face 4, oil supply tank 5, oil inlet is used more herein
Mechanism 6, oil storage tank 6b, oil supply gallery 6c, oil inlet passage 6d, divides oil groove 6e, oil outlet mechanism 7, targeting port 8, goes out oil storage component 6a
The terms such as oil groove 9, location hole 10, alloy stiffening ring 11, but it does not exclude the possibility of using other terms.Use these terms
Just for the sake of being more convenient to describe and explain the essence of the utility model；It is construed as any additional limitation all
It is contrary to the spirit of the present invention.
Claims (8)
1. a kind of thrust surface lubrication system of steam turbine bearing stops including bearing body (1) and the annular being set on bearing body (1)
Pushing surface (2), which is characterized in that the annular thrust surface (2) is equipped with the butting section (3) for leaning with axis body, described
Annular thrust surface (2) and axis body between be additionally provided with several oil film wedge faces (4), formed between the oil film wedge face (4) and axis body
Oil pocket, and the oil supply tank (5) being connected to oil pocket, the oil supply tank (5) one end and oil inlet are respectively equipped on each oil film wedge face (4)
Mechanism (6) is connected, and oil supply tank (5) other end is connected with oil outlet mechanism (7)；The oil film wedge face (4) is along circumferential direction
Play the role of convergence to oil from oil supply tank (5) to butting section (3)；The oil film wedge face (4) is radially out of bearing body (1)
Play the role of convergence to oil on the outside of side to bearing body (1)；Successively interval is arranged in the oil film wedge face (4) and butting section (3).
2. the thrust surface lubrication system of steam turbine bearing according to claim 1, which is characterized in that the oil film wedge face
(4) ratio of corresponding radian radian corresponding with butting section (3) is (2.5-3): 1.
3. the thrust surface lubrication system of steam turbine bearing according to claim 1 or 2, which is characterized in that the fuel feeding
The oil supply tank that slot (5) is elongated and the length direction of oil supply tank (5) is consistent, described with the radial direction of annular thrust surface (2)
(5) it is located at one end on the inside of annular thrust surface (2) and is equipped with targeting port (8).
4. the thrust surface lubrication system of steam turbine bearing according to claim 3, which is characterized in that the oil outlet mechanism
(7) include be connected to oil supply tank (5) go out oil groove (9), it is described go out oil groove (9) be located remotely from one end of targeting port (8) and go out
Oil groove (9) cross section is less than the cross section of oil supply tank (5).
5. the thrust surface lubrication system of steam turbine bearing according to claim 1 or 2, which is characterized in that the oil inlet
Mechanism (6) includes at least one oil storage component (6a), and each oil storage component (6a) includes oil storage tank (6b), the oil storage tank
(6b) is set to the inner wall of bearing body (1), and oil storage tank one end (6b) passes through oil supply gallery (6c) and oil supply tank (5) phase
Even, the oil storage tank (6b) other end is connected with oil inlet passage (6d).
6. the thrust surface lubrication system of steam turbine bearing according to claim 5, which is characterized in that the oil supply gallery
(6c) includes the circular passage being set on bearing body (1), and the circular passage side is connected with oil supply tank (5), described
The circular passage other side is by dividing oil groove (6e) to be connected with oil storage tank (6b).
7. the thrust surface lubrication system of steam turbine bearing according to claim 5, which is characterized in that the oil inlet passage
(6d) is through bearing body (1).
8. the thrust surface lubrication system of steam turbine bearing according to claim 1 or 2, which is characterized in that the bearing
Body (1) is equipped with the location hole (10) for positioning bearing body (1), is equipped with alloy stiffening ring on the outside of the bearing body (1)
(11)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621215117.2U CN208348304U (en) | 2016-11-11 | 2016-11-11 | The thrust surface lubrication system of steam turbine bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621215117.2U CN208348304U (en) | 2016-11-11 | 2016-11-11 | The thrust surface lubrication system of steam turbine bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208348304U true CN208348304U (en) | 2019-01-08 |
Family
ID=64872993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621215117.2U Expired - Fee Related CN208348304U (en) | 2016-11-11 | 2016-11-11 | The thrust surface lubrication system of steam turbine bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208348304U (en) |
-
2016
- 2016-11-11 CN CN201621215117.2U patent/CN208348304U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20191111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |