CN106438679A - Steam turbine bearing - Google Patents
Steam turbine bearing Download PDFInfo
- Publication number
- CN106438679A CN106438679A CN201610996982.3A CN201610996982A CN106438679A CN 106438679 A CN106438679 A CN 106438679A CN 201610996982 A CN201610996982 A CN 201610996982A CN 106438679 A CN106438679 A CN 106438679A
- Authority
- CN
- China
- Prior art keywords
- oil
- cylindrical body
- groove
- thrust surface
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
- F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
- F16C17/243—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety related to temperature and heat, e.g. for preventing overheating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/1065—Grooves on a bearing surface for distributing or collecting the liquid
Abstract
The invention belongs to the technical field of machinery, in particular, relates to a steam turbine bearing, and solves such technical problems as unreasonable design in the prior art. The steam turbine bearing comprises two bearing pads capable of splicing as a cylindrical body; annular thrust surfaces are respectively arranged at two ends of the cylindrical body; an inner lubricating structure is arranged on the inner side of the cylindrical body, and is connected with an oil supply structure arranged on the cylindrical body and capable of supplying oil to the inner lubricating structure; a thrust surface lubricating structure is arranged on the annular thrust surface; and the inner lubricating structure and the thrust surface lubricating structure are connected through an oil separation structure arranged on the cylindrical body. The steam turbine bearing has the following advantages: (1) the design is more reasonable; an oil film is formed between the bearing and a shaft body; the thrust surfaces always can be stably lubricated to effectively prevent wear thereof; and the use performance is improved; and (2) lubricating oil is used for circular lubrication, and a lubricating agent can be cooled, so that the heat dissipation can be further accelerated, meanwhile, the resource is saved, and the cost is reduced.
Description
Technical field
The invention belongs to field of mechanical technique, more particularly, to a kind of steam turbine bearing.
Background technology
Steam turbine is one of important power-equipment in commercial production, and the bearing of steam turbine is the important composition of Steam Turbine
Part, the bearing of steam turbine is mainly used in supporting machinery rotary body, reduces the coefficient of friction in its motor process, and ensures its time
Turn precision.But because steam turbine loads larger, long operational time, the plain bearing structure commonly used at present can not meet turbine shaft
The job demand holding, the contact surface between bearing and axis body often cannot keep enough lubricating oil to be lubricated, and causes bearing
Surface abrasion is serious, and self structure and equipment are damaged, additionally, after heavy-duty service, producing substantial amounts of heat not
Easily shed, bearing rigidity is deteriorated, shock resistance is deteriorated, may damage and affect equipment at any time and run, greatly reduce equipment
Operation stability.In order to solve the problems, such as prior art, people have carried out long-term exploration it is proposed that solution miscellaneous
Certainly scheme.
For example, Chinese patent literature discloses a kind of sliding bearing [application number：201180018539.4], including a ring
It is axially connected to the second sliding axle that this first sliding bearing is partly gone up around the first sliding bearing part of this axle and one
Bearing portion is divided.The thermal coefficient of expansion of this second sliding bearing part is greater than the thermal coefficient of expansion of this first sliding bearing part.
Above-mentioned scheme improves the subproblem of prior art to a certain extent, but, the program also at least exists
Following defect：Design is unreasonable, can not access enough lubrications, poor radiation, connect between axle and the contact surface of sliding bearing
Contacting surface temperature is high, sliding bearing degradation, and the technical problem of serious wear.
Content of the invention
The purpose of the present invention is for the problems referred to above, provides a kind of design more reasonable, high lubricating effect, and serviceability is good
Steam turbine bearing.
For reaching above-mentioned purpose, present invention employs following technical proposal：This steam turbine bearing includes two can be mutual
Piece together the bearing shell of cylindrical body, described cylindrical body be respectively arranged at two ends with annular thrust surface, be provided with inside described cylindrical body
Interior lubrication system and interior lubrication system be arranged in cylindrical body and can the oil supply structure of inside lubrication system fuel feeding be connected, described
Annular thrust surface be provided with thrust surface lubrication system, between described interior lubrication system and thrust surface lubrication system pass through setting
A point oily structure in cylindrical body is connected, and what described thrust surface lubrication system included being arranged on annular thrust surface some is justifying
Point oil groove of uniform intervals distribution in circumferential direction, a described point oil groove radially extends along annular thrust surface, each point of oil groove interior
End is connected with described point of oily structure respectively, and the outer end of each point of oil groove forms necking groove respectively and necking groove is communicated to annular thrust surface
Outside, annular thrust surface is separated into some thrust area by a described point oil groove, and described thrust area is respectively included in circumference
Thrust plane and Oil Guide face that direction is disposed adjacent, described Oil Guide face is the spiral seamlessly transitting to point oil groove from thrust plane
Face, be connected with the thrust plane high point of side of Oil Guide face is located at cylindrical body radial outside and low spot and is located at cylindrical body radially inner side,
Oil Guide face is located at cylindrical body radial outside with the high point dividing oil groove to be connected side and low spot is located at cylindrical body radially inner side.
In this application, by arranging lubricating structure on the medial surface and thrust surface of cylindrical body simultaneously, can be notable
Improve the lubricant effect of fluid, reduce the friction of bearing and axis body, reduce temperature between the two, therefore, it is possible to effectively carry simultaneously
Serviceability when high bearing uses, makes axis body carry out axial rotation in the medial surface of cylindrical body by lubrication system in setting
When, form oil pocket between the inner side of bearing and the outside of axis body, the thrust surface of bearing passes through arrange thrust surface lubrication system
Make the end face of axis body and the thrust surface of bearing against rear, between form oil pocket, above-mentioned described oil pocket is all by fuel feeding
Mechanism carries out fuel feeding successively, therefore, it is possible to make bearing and axis body occur against position be respectively formed oil film, oil can be significantly improved
The lubricant effect of liquid, reduces the friction of bearing and axis body, reduces temperature between the two, further, since steam turbine is in work simultaneously
As when produce huge vibration, the generation of effective slowing down vibration is capable of in the presence of oil film, and then reduces because vibration is made to equipment
The injury becoming, therefore, it is possible to improve serviceability and the service life of equipment.
In above-mentioned steam turbine bearing, the thrust plane positioned at the thrust area of cylindrical body one end is located at the suitable of Oil Guide face
Clockwise, the thrust plane positioned at the thrust area of the cylindrical body other end is located at the counter clockwise direction in Oil Guide face.
In above-mentioned steam turbine bearing, described interior lubrication system include being arranged on cylindrical body inwall some in circumference
The oil storage deep trouth of uniform intervals distribution on direction, described oil storage deep trouth is axially extending along cylindrical body, the length of oil storage deep trouth
Less than the length of cylindrical body, symmetrically it is provided with and point fuel-displaced shallow ridges that oily structure is connected at the two ends of oil storage deep trouth, and fuel-displaced
The width of shallow ridges is 10th to ten/8th 1/6th of the width of oil storage deep trouth, is formed and be located at cylinder between adjacent oil storage deep trouth
The oily blade face of wall in shape body.
In above-mentioned steam turbine bearing, described oil supply structure includes some oil supplying holes opened in cylindrical body, described
One end of oil supplying hole and oil storage deep trouth bottom insertion, the other end is connected with external oil supply mechanism.
In above-mentioned steam turbine bearing, the quantity of described oil storage deep trouth is four and is uniformly distributed in circumferencial direction,
The cross section of described oil storage deep trouth is in circular arc.
In above-mentioned steam turbine bearing, on described oily blade face, cast molding has a wearing layer respectively, described wearing layer
The thickness at middle part is more than the thickness of both sides thus forming inclined plane in the wearing layer side adjacent with oil storage deep trouth.
In above-mentioned steam turbine bearing, a described point oily structure is included located at interior lubrication system and thrust surface lubrication system
Between ring-shaped step, the inner of described point of oil groove is connected with ring-shaped step, the described outer end of fuel-displaced shallow ridges with annular
Step is connected.
In above-mentioned steam turbine bearing, the outside of described cylindrical body is provided with cannelure, is provided with described cannelure
Ring-shaped groove, described oil supplying hole is located in ring-shaped groove；It is respectively equipped with least one on described bearing shell and lift screw.
In above-mentioned steam turbine bearing, it is provided with described tubular body and mutually can interconnect in the middle part of two adjacent oil supplying holes
Logical interface channel.
In above-mentioned steam turbine bearing, formed between described thrust surface lubrication system and cylindrical body end and be located at thrust
Face lubrication system periphery and the ring ladder less than thrust surface lubrication system, described ring ladder are cast with and thrust surface profit
The wear-resisting ring that Slipped Clove Hitch structure flushes, described wear-resisting ring is provided with the extension slot being connected with necking groove；Described point oil groove is square
It is in circular arc respectively that the outer end two of shape groove and point oil groove is takeed on；Described bearing shell is fixed together by fastening bolt.
Compared with prior art, the advantage of this steam turbine bearing is：1st, design is more reasonable, shape between bearing and axis body
Become oil film, thrust surface can obtain stable lubrication all the time, effectively prevent thrust surface wear, improve serviceability.2nd, lubricating oil
Liquid is circulated lubrication, and lubricant can be cooled down, and can not only promote further to radiate, economize on resources simultaneously, reduce into
This.
Brief description
Fig. 1 is the perspective view that the present invention provides.
Fig. 2 is the sectional view that the present invention provides.
Fig. 3 is the sectional view of A-A in Fig. 2.
Fig. 4 is the sectional view of B-B in Fig. 2.
Fig. 5 is the sectional view of C-C in Fig. 2.
Fig. 6 is the sectional view of D-D in Fig. 3.
Fig. 7 is the sectional view of E-E in Fig. 3.
Fig. 8 is the sectional view of F-F in Fig. 7.
In figure, cylindrical body 1, bearing shell 11, cannelure 12, ring-shaped groove 13, lifting screw 14, interface channel 15, annular are stopped
Pushing surface 2, interior lubrication system 3, oil storage deep trouth 31, fuel-displaced shallow ridges 32, oily blade face 33, wearing layer 34, inclined plane 35, oil supply structure 4,
Oil supplying hole 41, thrust surface lubrication system 5, ring ladder 52, wear-resisting ring 53, extension slot 54, point oily structure 6, ring-shaped step 61, point
Oil groove 7, necking groove 8, thrust area 9, thrust plane 91, Oil Guide face 92.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in figures 1-8, this steam turbine bearing includes two bearing shells 11 that can mutually piece together cylindrical body 1, cylindrical body 1
Be respectively arranged at two ends with annular thrust surface 2 it is characterised in that being provided with interior lubrication system 3 and interior lubrication system 3 inside cylindrical body 1
Be arranged in cylindrical body 1 and can the oil supply structure 4 of inside lubrication system 3 fuel feeding be connected, annular thrust surface 2 is provided with thrust surface
Lubrication system 5, between interior lubrication system 3 and thrust surface lubrication system 5, point oily structure 6 by being arranged in cylindrical body 1 is connected,
Point oil groove that some uniform intervals in a circumferential direction that thrust surface lubrication system 5 includes being arranged on annular thrust surface 2 are distributed
7, a point oil groove 7 radially extends along annular thrust surface 2, and the inner of each point of oil groove 7 is connected with described point of oily structure 6 respectively, each point
The outer end of oil groove 7 forms necking groove 8 respectively and necking groove 8 is communicated to outside annular thrust surface 2, and point oil groove 7 is by annular thrust surface 2
It is separated into some thrust area 9, thrust area 9 is respectively included in thrust plane 91 and the Oil Guide face that circumferencial direction is disposed adjacent
92, Oil Guide face 92 is the helicoid seamlessly transitting to point oil groove 7 from thrust plane 91, and Oil Guide face 92 is connected one with thrust plane 91
The high point of side is located at cylindrical body 1 radial outside and low spot and is located at cylindrical body 1 radially inner side, and Oil Guide face 92 is connected one with a point oil groove 7
The high point of side is located at cylindrical body 1 radial outside and low spot is located at cylindrical body 1 radially inner side, further, the corresponding arc in Oil Guide face
The ratio spending radian corresponding with thrust plane 91 is (2.5-3)：1.
In this application, by arranging lubricating structure on the medial surface and thrust surface of cylindrical body simultaneously, can be notable
Improve the lubricant effect of fluid, reduce the friction of bearing and axis body, reduce temperature between the two, therefore, it is possible to effectively carry simultaneously
Serviceability when high bearing uses, makes axis body carry out axial rotation in the medial surface of cylindrical body by lubrication system in setting
When, form oil pocket between the inner side of bearing and the outside of axis body, the thrust surface of bearing passes through arrange thrust surface lubrication system
Make the end face of axis body and the thrust surface of bearing against rear, between form oil pocket, above-mentioned described oil pocket is all by fuel feeding
Mechanism carries out fuel feeding successively, because steam turbine is when using, forms the load at end, the therefore profit of thrust surface between axis body and bearing
It is even more important that sliding mechanism shows, and is provided with several equally distributed in a circumferential direction point of oil groove on thrust surface, by a point oil
Groove forms several identical thrust area, and each thrust area is made up of thrust plane and Oil Guide face successively, when axis body rotates
Afterwards, divide the fluid in oil groove to flow to Oil Guide face, and flow in thrust plane with the fluid on Oil Guide face that rotates of axis body, and
Form complete oil film between bearing and thrust surface.In order to improve the lubricant effect of thrust surface lubrication system, therefore by Oil Guide face
Being designed as is the helicoid seamlessly transitting to point oil groove from thrust plane, and wherein, Oil Guide face is connected with thrust plane the height of side
Point is located at cylindrical body radial outside and low spot is located at cylindrical body radially inner side, and Oil Guide face is located at the high point dividing oil groove to be connected side
Cylindrical body radial outside and low spot are located at cylindrical body radially inner side, because, after axis body rotates, fluid receives the effect of centrifugal force,
Force fluid to flow laterally, therefore make the height that the height outside Oil Guide face is higher than inner side in the radial direction, in circumference side
Make Oil Guide face be higher than near the height dividing oil groove side away from the height of point oil groove side upwards, so can make fluid in Oil Guide
All have on each aspect in face enough fluid supplemented such that it is able to during being used thrust surface lubricant effect.In addition
The radial outer end going out oil groove is provided with necking groove, and the oil pump capacity in the necking groove unit interval is much smaller than out oil groove oil pump capacity, therefore can
Fluid is enough made to be circulated to a certain extent, the impurity in fluid is outer under the influence of centrifugal force in addition moves, and can pass through
Necking groove is discharged.
Specifically, the thrust plane 91 positioned at the thrust area 9 of cylindrical body 1 one end is located at the side clockwise in Oil Guide face 92
To the thrust plane 91 positioned at the thrust area 9 of cylindrical body 1 other end is located at the counter clockwise direction in Oil Guide face 92.After rotation, lead
The lubricant effect to thrust plane for the fluid more can be improved, therefore in order to improve axle further in the front that pasta is located at thrust plane
The practicality held, can be put according to the rotation direction of axis body, after making bearing working, the flow direction of fluid be always from point
Oil groove finally arrives the direction of thrust plane to Oil Guide face.
Above-mentioned described interior lubrication system 3 includes some uniform intervals in a circumferential direction being arranged on cylindrical body 1 inwall
The oil storage deep trouth 31 of distribution, oil storage deep trouth 31 is axially extending along cylindrical body 1, and the length of oil storage deep trouth 31 is less than cylindrical body 1
Length, is symmetrically provided with and point fuel-displaced shallow ridges 32 that oily structure 6 is connected at the two ends of oil storage deep trouth 31, and fuel-displaced shallow ridges 32
Width is 10th to ten/8th 1/6th of the width of oil storage deep trouth 31, is formed and be located at tubular between adjacent oil storage deep trouth 31
The oily blade face 33 of body 1 inwall.Wherein, the quantity of oil storage deep trouth 31 is four and is uniformly distributed in circumferencial direction, oil storage deep trouth 31
Cross section be in circular arc；Optimize, on oily blade face 33, cast molding has wearing layer 34 respectively, the thickness at wearing layer 34 middle part is big
In both sides thickness thus forming inclined plane 35 in wearing layer 34 side adjacent with oil storage deep trouth 31.Fluid is from oil storage deep trouth 31
It flow to oily blade face oily blade face is lubricated, additionally, can improve oil pump capacity further by inclined plane, wearing layer is by a kind of anti-
Wear-resisting alloy material is made, and can effectively reduce abrasion between the two, the usage cycles of elongated component.
Prioritization scheme, this oil supply structure 4 includes some oil supplying holes 41 opened in cylindrical body 1, one end of oil supplying hole 41 with
The bottom insertion of oil storage deep trouth 31, the other end is connected with external oil supply mechanism.
Further, oily structure 6 is divided to include located at the annular table between interior lubrication system 3 and thrust surface lubrication system 5
Rank 61, the inner of point oil groove 7 is connected with ring-shaped step 61, is provided with oil diverting port dividing simultaneously, goes out between oil groove and ring-shaped step
The outer end of oily shallow ridges 32 is connected with ring-shaped step 61, after axis body is inserted in bearing, is formed between ring-shaped step and axis body
Circumferentially closed passage.
As prioritization scheme, it is provided with cannelure 12 in the outside of cylindrical body 1, in cannelure 12, is provided with ring-shaped groove 13, supply
Oilhole 41 is located in ring-shaped groove 13；It is respectively equipped with least one on bearing shell 11 and lift screw 14.It is additionally provided with many on bearing shell simultaneously
The individual location hole that can position cylindrical body, makes carrying and the process of installation be greatly improved by lifting screw 14, with
When used due to steam turbine during vibration big, so that bearing body is arranged on during bearing block by location hole becomes more stable.
Additionally, being provided with the interface channel 15 that can will be interconnected in the middle part of two adjacent oil supplying holes 41 in cylindrical body 1.Thrust
Formed between face lubrication system 5 and cylindrical body 1 end and be located at thrust surface lubrication system 5 periphery and be less than thrust surface lubrication system 5
Ring ladder 52, ring ladder 52 is cast with the wear-resisting ring 53 being flushed with thrust surface lubrication system 5, wear-resisting ring 53 is provided with
The extension slot 54 being connected with necking groove 8；Oil groove 7 is divided for rectangular channel and to divide the outer end two of oil groove 7 to take on respectively in circular arc；Bearing shell
11 are fixed together by fastening bolt.
The operation principle of this steam turbine bearing is as follows, and fluid enters in oil storage deep trouth 31 by oil supplying hole 41, with rear portion
Divide fluid to enter on oily blade face 33, oily blade face to be lubricated, another part enters into ring-shaped step 61 by fuel-displaced shallow ridges 32
Interior, and entered in point oil groove by oil diverting port, the fluid in point oil groove is made between annular thrust surface and axis body by Oil Guide face
Form oil film, thus reaching lubricant effect.
Specific embodiment described herein is only explanation for example to present invention spirit.The affiliated technology of the present invention is led
The technical staff in domain can be made various modifications or supplement or replaced using similar mode to described specific embodiment
Generation, but the spirit without departing from the present invention or surmount scope defined in appended claims.
Although more employing cylindrical body 1, bearing shell 11, cannelure 12, ring-shaped groove 13, lifting screw 14 herein, connecting
Connect road 15, annular thrust surface 2, interior lubrication system 3, oil storage deep trouth 31, fuel-displaced shallow ridges 32, oily blade face 33, wearing layer 34, tilt
Face 35, oil supply structure 4, oil supplying hole 41, thrust surface lubrication system 5, ring ladder 52, wear-resisting ring 53, the oily structure of 54 points of extension slot
6th, ring-shaped step 61, point term such as oil groove 7, necking groove 8, thrust area 9, thrust plane 91, Oil Guide face 92, but be not precluded from making
Probability with other terms.It is used for the purpose of more easily describing and explaining the essence of the present invention using these terms；It
To be construed to any additional restriction be all contrary with spirit of the present invention.
Claims (10)
1. a kind of steam turbine bearing, including two bearing shells (11) that can mutually piece together cylindrical body (1), described cylindrical body
(1) be respectively arranged at two ends with annular thrust surface (2) it is characterised in that being provided with interior lubrication system inside described cylindrical body (1)
(3) and interior lubrication system (3) be arranged on cylindrical body (1) upper and can inside lubrication system (3) fuel feeding oil supply structure (4) phase
Even, described annular thrust surface (2) is provided with thrust surface lubrication system (5), described interior lubrication system (3) and thrust surface lubrication
Between structure (5), point oily structure (6) by being arranged in cylindrical body (1) is connected, and described thrust surface lubrication system (5) includes
It is arranged on point oil groove (7) of some distributions of uniform intervals in a circumferential direction on annular thrust surface (2), described divides oil groove
(7) radially extend along annular thrust surface (2), the inner of each point of oil groove (7) is connected with described point of oily structure (6) respectively, each point
The outer end of oil groove (7) forms necking groove (8) respectively and necking groove (8) is communicated to outside annular thrust surface (2), and described divides oil groove
(7) annular thrust surface (2) is separated into some thrust area (9), described thrust area (9) is respectively included in circumferencial direction phase
The thrust plane (91) of adjacent setting and Oil Guide face (92), described Oil Guide face (92) is from thrust plane (91) to a point oil groove (7)
The helicoid seamlessly transitting, Oil Guide face (92) be connected with thrust plane (91) side high point be located at cylindrical body (1) radial outside
And low spot is located at cylindrical body (1) radially inner side, Oil Guide face (92) are located at cylindrical body (1) with the high point dividing oil groove (7) to be connected side
Radial outside and low spot are located at cylindrical body (1) radially inner side.
2. steam turbine bearing according to claim 1 is it is characterised in that be located at the thrust area (9) of cylindrical body (1) one end
Thrust plane (91) be located at the clockwise direction in Oil Guide face (92), positioned at the thrust area (9) of cylindrical body (1) other end only
It is bulldozed the counter clockwise direction that face (91) is located at Oil Guide face (92).
3. steam turbine bearing according to claim 2 is it is characterised in that described interior lubrication system (3) includes being arranged on
The oil storage deep trouth (31) of some uniform intervals in a circumferential direction distribution of cylindrical body (1) inwall, described oil storage deep trouth (31)
Axially extending along cylindrical body (1), the length of oil storage deep trouth (31) is less than the length of cylindrical body (1), in oil storage deep trouth (31)
Two ends are symmetrically provided with and point fuel-displaced shallow ridges (32) that oily structure (6) is connected, and the width of fuel-displaced shallow ridges (32) is that oil storage is deep
10th to ten/8th 1/6th of the width of groove (31), forms between adjacent oil storage deep trouth (31) and is located in cylindrical body (1)
The oily blade face (33) of wall.
4. steam turbine bearing according to claim 3 it is characterised in that described oil supply structure (4) include some open in
Oil supplying hole (41) in cylindrical body (1), the bottom insertion of described one end of oil supplying hole (41) and oil storage deep trouth (31), the other end
It is connected with external oil supply mechanism.
5. steam turbine bearing according to claim 4 is it is characterised in that the quantity of described oil storage deep trouth (31) is four
And be uniformly distributed in circumferencial direction, the cross section of described oil storage deep trouth (31) is in circular arc.
6. steam turbine bearing according to claim 4 is it is characterised in that cast molding respectively is gone up on described oily blade face (33)
There is wearing layer (34), the thickness in the middle part of described wearing layer (34) is more than the thickness of both sides thus deep in wearing layer (34) and oil storage
The adjacent side of groove (31) forms inclined plane (35).
7. the steam turbine bearing according to claim 3 or 4 or 5 or 6 is it is characterised in that a described point oily structure (6) includes
Ring-shaped step (61) between interior lubrication system (3) and thrust surface lubrication system (5), the inner of described point of oil groove (7)
It is connected with ring-shaped step (61), the described outer end of fuel-displaced shallow ridges (32) is connected with ring-shaped step (61).
8. the steam turbine bearing according to claim 4 or 5 or 6 is it is characterised in that the outside of described cylindrical body (1) sets
There is cannelure (12), in described cannelure (12), be provided with ring-shaped groove (13), described oil supplying hole (41) is located at ring-shaped groove
(13) in；At least one lifting screw (14) is respectively equipped with described bearing shell (11).
9. the steam turbine bearing according to claim 4 or 5 or 6 is it is characterised in that be provided with energy in described cylindrical body (1)
The interface channel (15) being interconnected in the middle part of two adjacent oil supplying holes (41).
10. the steam turbine bearing according to any one in claim 1-6 is it is characterised in that described thrust surface lubricates
Formed between structure (5) and cylindrical body (1) end and be located at thrust surface lubrication system (5) periphery and be less than thrust surface lubrication system
(5) ring ladder (52), described ring ladder (52) is cast with the wear-resisting ring flushing with thrust surface lubrication system (5)
(53), described wear-resisting ring (53) is provided with the extension slot (54) being connected with necking groove (8)；Described point oil groove (7) is square
It is in circular arc respectively that the outer end two of shape groove and point oil groove (7) is takeed on；Described bearing shell (11) is fixed together by fastening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610996982.3A CN106438679B (en) | 2016-11-11 | 2016-11-11 | Steam turbine bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610996982.3A CN106438679B (en) | 2016-11-11 | 2016-11-11 | Steam turbine bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106438679A true CN106438679A (en) | 2017-02-22 |
| CN106438679B CN106438679B (en) | 2018-09-14 |
Family
ID=58207533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610996982.3A Expired - Fee Related CN106438679B (en) | 2016-11-11 | 2016-11-11 | Steam turbine bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438679B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107596A (en) * | 2019-05-06 | 2019-08-09 | 格力电器（合肥）有限公司 | A kind of sliding bearing, motor and compressor including the sliding bearing |
| CN110709613A (en) * | 2018-01-19 | 2020-01-17 | 深圳市大疆创新科技有限公司 | Bushing and remote controller |
| CN114562454A (en) * | 2022-04-01 | 2022-05-31 | 广东美的环境科技有限公司 | Movable disc structure, compressor and temperature control equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3025876A1 (en) * | 1979-07-13 | 1981-02-05 | Hitachi Ltd | WEDGE SURFACE THRUST BEARINGS |
| JPS58134221A (en) * | 1982-02-04 | 1983-08-10 | Toshiba Corp | Oil film control device for thrust bearing |
| US20020181811A1 (en) * | 2001-06-05 | 2002-12-05 | Aguilar Scott Grover | Diverted flow thrust bearing |
| CN1580594A (en) * | 2003-03-21 | 2005-02-16 | 西加特技术有限责任公司 | Method and system for withstanding shock in a spindle motor bearing |
| JP2011085218A (en) * | 2009-10-16 | 2011-04-28 | Mitsubishi Heavy Ind Ltd | Planetary bearing structure |
| CN203239760U (en) * | 2013-05-06 | 2013-10-16 | 浙江正盛轴瓦有限责任公司 | Shaft sleeve of rolling mill |
| CN104083126A (en) * | 2014-07-21 | 2014-10-08 | 广东新宝电器股份有限公司 | Dust collector with pre-filtering and water-retaining function |
-
2016
- 2016-11-11 CN CN201610996982.3A patent/CN106438679B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3025876A1 (en) * | 1979-07-13 | 1981-02-05 | Hitachi Ltd | WEDGE SURFACE THRUST BEARINGS |
| JPS5614620A (en) * | 1979-07-13 | 1981-02-12 | Hitachi Ltd | Thrust bearing |
| JPS58134221A (en) * | 1982-02-04 | 1983-08-10 | Toshiba Corp | Oil film control device for thrust bearing |
| US20020181811A1 (en) * | 2001-06-05 | 2002-12-05 | Aguilar Scott Grover | Diverted flow thrust bearing |
| CN1580594A (en) * | 2003-03-21 | 2005-02-16 | 西加特技术有限责任公司 | Method and system for withstanding shock in a spindle motor bearing |
| JP2011085218A (en) * | 2009-10-16 | 2011-04-28 | Mitsubishi Heavy Ind Ltd | Planetary bearing structure |
| CN203239760U (en) * | 2013-05-06 | 2013-10-16 | 浙江正盛轴瓦有限责任公司 | Shaft sleeve of rolling mill |
| CN104083126A (en) * | 2014-07-21 | 2014-10-08 | 广东新宝电器股份有限公司 | Dust collector with pre-filtering and water-retaining function |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110709613A (en) * | 2018-01-19 | 2020-01-17 | 深圳市大疆创新科技有限公司 | Bushing and remote controller |
| CN110107596A (en) * | 2019-05-06 | 2019-08-09 | 格力电器（合肥）有限公司 | A kind of sliding bearing, motor and compressor including the sliding bearing |
| CN114562454A (en) * | 2022-04-01 | 2022-05-31 | 广东美的环境科技有限公司 | Movable disc structure, compressor and temperature control equipment |
| CN114562454B (en) * | 2022-04-01 | 2023-12-22 | 广东美的环境科技有限公司 | Movable plate structure, compressor and temperature control equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106438679B (en) | 2018-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106438679A (en) | Steam turbine bearing | |
| CN103335017A (en) | Radially and axially integrated sliding bearing | |
| CN103362949A (en) | Dynamic pressure bearing, high-speed fluid power machinery and high-speed centrifugal compressor | |
| CN105202018B (en) | A kind of hybrid kinetic pressure gas journal bearing | |
| CN207830379U (en) | Needle roller | |
| CN205479172U (en) | A planetary gear derailleur for wind power generation | |
| CN108843689A (en) | A kind of pressing cage and processing method with oil leab | |
| CN105518320A (en) | Bearing shell | |
| CN103119311B (en) | The crankshaft support of internal-combustion engine machine crankshaft | |
| CN206234256U (en) | Steam turbine bearing | |
| CN102032267B (en) | Sliding bearing of spiral floating bushing | |
| CN206419339U (en) | The thrust surface lubrication system of steam turbine bearing | |
| CN101131180A (en) | Dual-column cylindrical roller bearing with self-aligning ring | |
| CN215720215U (en) | Dynamic pressure rolling-sliding composite bearing for sump oil pump | |
| CN109854608A (en) | A kind of dendritic distributed composite surface texture antifriction bearing shell | |
| CN205190309U (en) | Axle bush structure of guide bearing | |
| CN103089691B (en) | Centrifugal compressor bearing, centrifugal compressor and air conditioning system | |
| CN206329635U (en) | Wear-resisting type motor bearing | |
| CN209130053U (en) | A kind of cylinder roller bearing retainer | |
| CN109642613A (en) | Bearing arrangement and spindle device for machine tool | |
| CN210769825U (en) | Heat dissipation strenghthened type angular contact ball bearing | |
| CN104806636A (en) | Bearing retaining frame | |
| CN106246718A (en) | A kind of needle roller lining and auxiliary assembling structure thereof | |
| CN205780305U (en) | A kind of forced-floating floating-ring bearing | |
| CN201359008Y (en) | Pure rolling 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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180807 Address after: 311899 No. 58, Chung Tao Road, Tao Zhu street, Zhuji, Shaoxing, Zhejiang. Applicant after: ZHEJIANG ZHENGSHENG BEARING CO., LTD. Address before: 311899 No. 58, Chung Tao Road, Tao Zhu street, Zhuji, Shaoxing, Zhejiang. Applicant before: Lou Yudong |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20191111 |