CN106438679B - Steam turbine bearing - Google Patents
Steam turbine bearing Download PDFInfo
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- CN106438679B CN106438679B CN201610996982.3A CN201610996982A CN106438679B CN 106438679 B CN106438679 B CN 106438679B CN 201610996982 A CN201610996982 A CN 201610996982A CN 106438679 B CN106438679 B CN 106438679B
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- oil
- cylindrical body
- thrust surface
- lubrication system
- thrust
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- 238000005461 lubrication Methods 0.000 claims abstract description 59
- 239000000446 fuel Substances 0.000 claims abstract description 8
- 238000003860 storage Methods 0.000 claims description 34
- 238000000465 moulding Methods 0.000 claims description 3
- 244000061408 Eugenia caryophyllata Species 0.000 claims description 2
- 235000016639 Syzygium aromaticum Nutrition 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 122
- 239000000314 lubricant Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 239000010687 lubricating oil Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention belongs to field of mechanical technique more particularly to a kind of steam turbine bearings.It solves the prior art and designs the technical problems such as unreasonable.This steam turbine bearing includes two bearing shells that can mutually piece together cylindrical body, the both ends of the cylindrical body are respectively equipped with annular thrust surface, be equipped with interior lubrication system on the inside of the cylindrical body and interior lubrication system and be arranged in cylindrical body and can the oil supply structure of inside lubrication system fuel feeding be connected, the annular thrust surface is equipped with thrust surface lubrication system, is connected by point oily structure being arranged in cylindrical body between the interior lubrication system and thrust surface lubrication system.The invention has the advantages that：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, improve performance.2, lubricating oil carries out cycle 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 invention belongs to field of mechanical technique more particularly to a kind of steam turbine bearings.
Background technology
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 friction coefficient in its motion process, and ensure its time
Turn precision.But since steam turbine loads larger, long operational time, currently used plain bearing structure cannot meet 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, is damaged to self structure and equipment, in addition, after heavy-duty service, generates a large amount of heat not
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, it is proposed that miscellaneous solution
Certainly scheme.
For example, Chinese patent literature discloses a kind of sliding bearing [application number：2011800189.4], including one surround
First sliding bearing part of the axis and second sliding bearing being axially connected on the first sliding bearing part
Part.The coefficient of thermal expansion of the second sliding bearing part is greater than the coefficient of thermal expansion of the first sliding bearing part.
Above-mentioned scheme improves the subproblem of the prior art to a certain extent, and still, the program also at least exists
Following defect：It designs 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.
Invention content
Regarding the issue above, the present invention provides a kind of more reasonable, the high lubricating effect of design, performance are good
Steam turbine bearing.
In order to achieve the above objectives, present invention employs following technical proposals：This steam turbine bearing can be mutual including two
The bearing shell of cylindrical body is pieced together, the both ends of the cylindrical body are respectively equipped with annular thrust surface, are equipped on the inside of the 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, it is described
Annular thrust surface be equipped with thrust surface lubrication system, pass through setting between the interior lubrication system and thrust surface lubrication system
A point oily structure in cylindrical body is connected, the thrust surface lubrication system include be arranged on annular thrust surface it is several in circle
What is be evenly spaced in circumferential direction divides oil groove, and described divides oil groove to be radially extended along annular thrust surface, each point of oil groove it is interior
End is connected with described point of oily structure respectively, and the outer end of each point of oil groove is respectively formed necking slot and necking slot is connected to annular thrust surface
Outside, described divides oil groove that annular thrust surface is separated into several thrust areas, and the thrust area is respectively included in circumference
The thrust plane and Oil Guide face that direction is disposed adjacent, the Oil Guide face are from thrust plane to the spiral for dividing oil groove to seamlessly transit
Face, Oil Guide face be connected with thrust plane side high point is positioned at cylindrical body radial outside and low spot is located at cylindrical body radially inner side,
Oil Guide face with divide oil groove be connected side high point is positioned at cylindrical body radial outside and low spot is located at cylindrical body radially inner side.
It in this application, can be notable by the way that lubricating structure is arranged simultaneously on the medial surface and thrust surface of cylindrical body
The lubricant effect of fluid is improved, reduces the friction of bearing and axis body, while reducing temperature between the two, therefore can effectively carry
Performance when high bearing uses makes axis body carry out axial rotation in the medial surface of cylindrical body by lubrication system in setting
When, oil pocket is formed between the inside of bearing and the outside of axis body, by the way that thrust surface lubrication system is arranged on the thrust surface of bearing
The thrust surface of the end face and bearing that make axis body forms oil pocket against rear therebetween, and above-mentioned described oil pocket passes through fuel feeding
Mechanism carries out fuel feeding successively, thus can 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, while reducing temperature between the two, further, since steam turbine is in work
As when generate huge vibration, the generation of effectively slowing down vibration is capable of in the presence of oil film, and then is reduced because equipment is made in vibration
At injury, therefore the performance and service life of equipment can be improved.
In above-mentioned steam turbine bearing, the thrust plane for being located at the thrust area of cylindrical body one end is located at the suitable of Oil Guide face
Clockwise, the thrust plane for being located at the thrust area of the cylindrical body other end are located at the counter clockwise direction in Oil Guide face.
In above-mentioned steam turbine bearing, the interior lubrication system includes being arranged in the several in circumference of cylindrical body inner wall
The oil storage deep trouth being evenly spaced on direction, the oil storage deep trouth is axially extending along cylindrical body, the length of oil storage deep trouth
Less than the length of cylindrical body, the fuel-displaced shallow ridges being connected with point oily structure is symmetrically equipped at the both ends of oil storage deep trouth, and fuel-displaced
The width of shallow ridges is 1st/1/8th to 16 of the width of oil storage deep trouth, is formed between adjacent oil storage deep trouth and is located at cylinder
The oily blade face of wall in shape body.
In above-mentioned steam turbine bearing, the oil supply structure include it is several open in the oil supplying hole in cylindrical body, it is described
The bottom of one end and oil storage deep trouth of oil supplying hole penetrate through, the other end is connected with external oil supply mechanism.
In above-mentioned steam turbine bearing, the quantity of the oil storage deep trouth is four and is uniformly distributed in circumferencial direction,
The cross section of the oil storage deep trouth is arc-shaped.
In above-mentioned steam turbine bearing, cast molding has wearing layer, the wearing layer respectively on the oily blade face
The thickness at middle part is more than the thickness of both sides to form inclined surface in the wearing layer side adjacent with oil storage deep trouth.
In above-mentioned steam turbine bearing, point oily structure includes being set to interior lubrication system and thrust surface lubrication system
Between ring-shaped step, the inner end for dividing oil groove is connected with ring-shaped step, outer end and the annular of the fuel-displaced shallow ridges
Step is connected.
In above-mentioned steam turbine bearing, the outside of the cylindrical body is equipped with annular groove, is equipped in the annular groove
Ring-shaped groove, the oil supplying hole are located in ring-shaped groove；At least one lifting screw hole is respectively equipped on the bearing shell.
Being equipped in above-mentioned steam turbine bearing, in the cylindrical body will can mutually interconnect in the middle part of two adjacent oil supplying holes
Logical interface channel.
It is formed in above-mentioned steam turbine bearing, between the thrust surface lubrication system and cylindrical body end and is located at thrust
Face lubrication system is peripheral and is less than the ring ladder of thrust surface lubrication system, is cast on the ring ladder and thrust surface moistens
The wear-resisting ring that Slipped Clove Hitch structure flushes, the wear-resisting ring are equipped with the extension slot being connected with necking slot；Described divides oil groove to be square
Shape slot and two shoulder of outer end of oil groove is divided to be arc-shaped respectively；The bearing shell is fixed together by fastening bolt.
Compared with prior art, it is the advantages of this steam turbine bearing：1, more reasonable, shape between bearing and axis body is designed
At oil film, thrust surface can obtain stable lubrication always, effectively prevent thrust surface wear, improve performance.2, lubricating oil
Liquid carries out cycle lubrication, and lubricant can be cooled down, and can not only further promote to radiate, economize on resources simultaneously, reduce at
This.
Description of the drawings
Fig. 1 is dimensional structure diagram provided by the invention.
Fig. 2 is sectional view provided by the invention.
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, annular groove 12, ring-shaped groove 13, lifting screw hole 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 surface 35, oil supply structure 4,
Oil supplying hole 41, ring ladder 52, point oily structure 6, ring-shaped step 61, divides oil groove 7, necking slot 8, thrust at thrust surface lubrication system 5
Region 9, thrust plane 91, Oil Guide face 92.
Specific implementation mode
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
Both ends be respectively equipped with annular thrust surface 2, which is characterized in that the inside of cylindrical body 1 is equipped with interior lubrication system 3 and interior lubrication system 3
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 equipped with thrust surface
Lubrication system 5 is connected between interior lubrication system 3 and thrust surface lubrication system 5 by point oily structure 6 being arranged in cylindrical body 1,
Thrust surface lubrication system 5 include be arranged on annular thrust surface 2 it is several be evenly spaced in a circumferential direction divide oil groove
7, divide oil groove 7 to be radially extended along annular thrust surface 2, the inner end 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 is respectively formed necking slot 8 and necking slot 8 is connected to 2 outside of annular thrust surface, divides oil groove 7 by annular thrust surface 2
Several thrust areas 9 are separated into, thrust area 9 is respectively included in the thrust plane 91 and Oil Guide face that circumferencial direction is disposed adjacent
92, Oil Guide face 92 is from thrust plane 91 to the helicoid for dividing oil groove 7 to seamlessly transit, and Oil Guide face 92 is connected one with thrust plane 91
The high point of side is located at 1 radially inner side of cylindrical body positioned at 1 radial outside of cylindrical body and low spot, and Oil Guide face 92 is connected one with oil groove 7 is divided
The high point of side is positioned at 1 radial outside of cylindrical body and low spot is located at 1 radially inner side of cylindrical body, further, the corresponding arc in Oil Guide face
The ratio of degree radian corresponding with thrust plane 91 is (2.5-3)：1.
It in this application, can be notable by the way that lubricating structure is arranged simultaneously on the medial surface and thrust surface of cylindrical body
The lubricant effect of fluid is improved, reduces the friction of bearing and axis body, while reducing temperature between the two, therefore can effectively carry
Performance when high bearing uses makes axis body carry out axial rotation in the medial surface of cylindrical body by lubrication system in setting
When, oil pocket is formed between the inside of bearing and the outside of axis body, by the way that thrust surface lubrication system is arranged on the thrust surface of bearing
The thrust surface of the end face and bearing that make axis body forms oil pocket against rear therebetween, and above-mentioned described oil pocket passes through fuel feeding
Mechanism carries out fuel feeding successively, when in use due to steam turbine, the load at end, therefore the profit of thrust surface is formed between axis body and bearing
Sliding mechanism shows even more important, several equally distributed in a circumferential direction point of oil groove is equipped on thrust surface, passes through a point oil
Slot forms several identical thrust areas, and each thrust area is made of thrust plane and Oil Guide face successively, when axis body rotates
Afterwards, the fluid divided in oil groove flows to Oil Guide face, and as the fluid on the rotation Oil Guide face of axis body flows in thrust plane, and
Complete oil film is formed between bearing and thrust surface.In order to improve the lubricant effect of thrust surface lubrication system, therefore by Oil Guide face
It is designed as from thrust plane to the helicoid for dividing oil groove to seamlessly transit, wherein Oil Guide face is connected the height of side with thrust plane
Point is located at cylindrical body radially inner side positioned at cylindrical body radial outside and low spot, and Oil Guide face is located at the be connected high point of side of oil groove is divided
Cylindrical body radial outside and low spot is located at cylindrical body radially inner side, due to work as axis body rotation after, fluid receives the effect of centrifugal force,
It forces fluid to flow outward, therefore makes the height on the outside of Oil Guide face higher than the height of inside in the radial direction, in circumference side
Make Oil Guide face far from dividing the height of oil groove side to be higher than close to the height for dividing oil groove side upwards, fluid can be made in Oil Guide in this way
All there is enough fluid to be supplemented on each point in face, so as to the lubricant effect of thrust surface during use.In addition
The radial outer end for going out oil groove is equipped with necking slot, and the oil pump capacity in the necking slot unit interval is much smaller than out oil groove oil pump capacity, therefore energy
Enough fluid is made to be recycled to a certain extent, the impurity in fluid is outer under the influence of centrifugal force in addition moves, and can pass through
Necking slot is discharged.
Specifically, the thrust plane 91 positioned at the thrust area 9 of 1 one end of cylindrical body is located at the side clockwise in Oil Guide face 92
To the thrust plane 91 for being located at the thrust area 9 of 1 other end of cylindrical body is located at the counter clockwise direction in Oil Guide face 92.After rotation, lead
Pasta is located at the lubricant effect that the front of thrust plane can more improve fluid to thrust plane, therefore in order to further increase axis
The practicability 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 several uniform intervals in a circumferential direction being arranged in 1 inner wall of cylindrical body
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 equipped with the fuel-displaced shallow ridges 32 being connected with point oily structure 6 at the both ends of oil storage deep trouth 31, and fuel-displaced shallow ridges 32
Width is 1st/1/8th to 16 of the width of oil storage deep trouth 31, is formed between adjacent oil storage deep trouth 31 and is located at tubular
The oily blade face 33 of 1 inner wall of body.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 arc-shaped；Optimization, cast molding has wearing layer 34, the thickness at 34 middle part of wearing layer big respectively on oily blade face 33
In the thickness of both sides to form inclined surface 35 in the side adjacent with oil storage deep trouth 31 of wearing layer 34.Fluid is from oil storage deep trouth 31
It flow to oily blade face to be lubricated oily blade face, in addition, can further increase oil pump capacity by inclined surface, wearing layer is anti-by one kind
Wear-resisting alloy material is made, and can effectively reduce abrasion between the two, the service life of elongated component.
Prioritization scheme, the oil supply structure 4 include it is several open in the oil supplying hole 41 in cylindrical body 1, one end of oil supplying hole 41 with
The bottom of oil storage deep trouth 31 penetrates through, and the other end is connected with external oil supply mechanism.
Further, it includes the annular table being set between interior lubrication system 3 and thrust surface lubrication system 5 to divide oily structure 6
Rank 61 divides the inner end of oil groove 7 to be connected with ring-shaped step 61, while oil diverting port is equipped between oil groove and ring-shaped step dividing, and goes out
The outer end of oily shallow ridges 32 is connected with ring-shaped step 61, after axis body is inserted into bearing, is formed between ring-shaped step and axis body
Circumferentially closed channel.
Scheme as an optimization is equipped with annular groove 12 in the outside of cylindrical body 1, is equipped with ring-shaped groove 13 in annular groove 12, supplies
Oilhole 41 is located in ring-shaped groove 13；At least one lifting screw hole 14 is respectively equipped on bearing shell 11.It is additionally provided on bearing shell simultaneously more
A location hole that can position cylindrical body makes the process of carrying and installation be greatly improved, together by lifting screw hole 14
When it is big due to vibrating during steam turbine use, become more stable when so that bearing body is mounted on bearing block by location hole.
It can be by the interconnected interface channel 15 in adjacent two oil supplying holes, 41 middle part in addition, being equipped in cylindrical body 1.Thrust
It is formed between 1 end of face lubrication system 5 and cylindrical body and is located at 5 periphery of thrust surface lubrication system and is less than thrust surface lubrication system 5
Ring ladder 52, the wear-resisting ring flushed with thrust surface lubrication system 5 is cast on ring ladder 52, wear-resisting ring is equipped with and contracting
The extension slot that mouth slot 8 is connected；It is divided to oil groove 7 to be rectangular channel and two shoulder of outer end of oil groove 7 is divided to be arc-shaped respectively；Bearing shell 11 passes through
Fastening bolt is fixed together.
The operation principle of this steam turbine bearing is as follows, and fluid is entered to by oil supplying hole 41 in oil storage deep trouth 31, with rear portion
Divide fluid to enter on oily blade face 33 to be lubricated oily blade face, another part enters ring-shaped step 61 by fuel-displaced shallow ridges 32
It is interior, and entered in point oil groove by oil diverting port, divide the fluid in oil groove to make between annular thrust surface and axis body by Oil Guide face
Oil film is formed, to reach lubricant effect.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although cylindrical body 1 is used more herein, bearing shell 11, annular groove 12, ring-shaped groove 13, lifting screw hole 14, connects
It connects 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, point oily structure 6, ring-shaped step 61, point oil
The terms such as slot 7, necking slot 8, thrust area 9, thrust plane 91, Oil Guide face 92, but the possibility using other terms is not precluded
Property.The use of these items is only for more easily describe and explain the essence of the present invention；It is construed as any type
Additional limitation is all disagreed with spirit of that invention.
Claims (8)
1. a kind of steam turbine bearing, including two can mutually piece together cylindrical body（1）Bearing shell（11）, the cylindrical body
（1）Both ends be respectively equipped with annular thrust surface（2）, which is characterized in that the cylindrical body（1）Inside is equipped with interior lubrication system
（3）And interior lubrication system（3）With setting in cylindrical body（1）The upper and inside lubrication system of energy（3）The oil supply structure of fuel feeding（4）Phase
Even, the annular thrust surface（2）It is equipped with thrust surface lubrication system（5）, the interior lubrication system（3）It is lubricated with thrust surface
Structure（5）Between by be arranged in cylindrical body（1）On point oily structure（6）It is connected, the thrust surface lubrication system（5）Including
It is arranged in annular thrust surface（2）On it is several be evenly spaced in a circumferential direction divide oil groove（7）, described divides oil groove
（7）Along annular thrust surface（2）It radially extends, each point of oil groove（7）Inner end respectively with described point of oily structure（6）It is connected, each point
Oil groove（7）Outer end be respectively formed necking slot（8）And necking slot（8）It is connected to annular thrust surface（2）Outside, described divides oil groove
（7）By annular thrust surface（2）It is separated into several thrust areas（9）, the thrust area（9）It is respectively included in circumferencial direction phase
The thrust plane of neighbour's setting（91）With Oil Guide face（92）, the Oil Guide face（92）For from thrust plane（91）To dividing oil groove（7）
The helicoid seamlessly transitted, Oil Guide face（92）With thrust plane（91）The high point of connected side is located at cylindrical body（1）Radial outside
And low spot is located at cylindrical body（1）Radially inner side, Oil Guide face（92）With divide oil groove（7）The high point of connected side is located at cylindrical body（1）
Radial outside and low spot is located at cylindrical body（1）Radially inner side；Positioned at cylindrical body（1）The thrust area of one end（9）Thrust plane
（91）Positioned at Oil Guide face（92）Clockwise direction, be located at cylindrical body（1）The thrust area of the other end（9）Thrust plane（91）
Positioned at Oil Guide face（92）Counter clockwise direction；The interior lubrication system（3）Including being arranged in cylindrical body（1）Inner wall it is several
The oil storage deep trouth being evenly spaced on circumferencial direction（31）, the oil storage deep trouth（31）Along cylindrical body（1）It is axially extending,
Oil storage deep trouth（31）Length be less than cylindrical body（1）Length, in oil storage deep trouth（31）Both ends symmetrically be equipped with and point oil knot
Structure（6）The fuel-displaced shallow ridges being connected（32）, and fuel-displaced shallow ridges（32）Width be oil storage deep trouth（31）Width 1/8th
To 1/16th, adjacent oil storage deep trouth（31）Between formed be located at cylindrical body（1）The oily blade face of inner wall（33）.
2. steam turbine bearing according to claim 1, which is characterized in that the oil supply structure（4）Including it is several open in
Cylindrical body（1）On oil supplying hole（41）, the oil supplying hole（41）One end and oil storage deep trouth（31）Bottom perforation, the other end
It is connected with external oil supply mechanism.
3. steam turbine bearing according to claim 2, which is characterized in that the oil storage deep trouth（31）Quantity be four
And it is uniformly distributed in circumferencial direction, the oil storage deep trouth（31）Cross section be arc-shaped.
4. steam turbine bearing according to claim 2, which is characterized in that the oily blade face（33）Upper cast molding respectively
There is wearing layer（34）, the wearing layer（34）The thickness at middle part is more than the thickness of both sides in wearing layer（34）With oil storage depth
Slot（31）Adjacent side forms inclined surface（35）.
5. steam turbine bearing according to claim 1, which is characterized in that point oily structure（6）Including being set to interior profit
Slipped Clove Hitch structure（3）With thrust surface lubrication system（5）Between ring-shaped step（61）, described divides oil groove（7）Inner end and annular table
Rank（61）It is connected, the fuel-displaced shallow ridges（32）Outer end and ring-shaped step（61）It is connected.
6. according to the steam turbine bearing described in Claims 2 or 3 or 4, which is characterized in that the cylindrical body（1）Outside set
There is annular groove（12）, the annular groove（12）It is interior to be equipped with ring-shaped groove（13）, the oil supplying hole（41）Positioned at ring-shaped groove
（13）It is interior；The bearing shell（11）On be respectively equipped at least one lifting screw hole（14）.
7. according to the steam turbine bearing described in Claims 2 or 3 or 4, which is characterized in that the cylindrical body（1）It is interior to be equipped with energy
By two adjacent oil supplying holes（41）The interconnected interface channel in middle part（15）.
8. according to the steam turbine bearing described in any one of claim 1-4, which is characterized in that the thrust surface lubrication knot
Structure（5）With cylindrical body（1）It is formed between end and is located at thrust surface lubrication system（5）Periphery and be less than thrust surface lubrication system（5）
Ring ladder（52）, the ring ladder（52）On be cast with and thrust surface lubrication system（5）The wear-resisting ring flushed, it is described
Wear-resisting ring be equipped with and necking slot（8）The extension slot being connected；Described divides oil groove（7）For rectangular channel and divide oil groove（7）'s
Two shoulder of outer end is arc-shaped respectively；The bearing shell（11）It 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 |
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| CN106438679A CN106438679A (en) | 2017-02-22 |
| CN106438679B true CN106438679B (en) | 2018-09-14 |
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| CN110301024B (en) * | 2018-01-19 | 2021-05-04 | 深圳市大疆创新科技有限公司 | Rocker mechanism and remote controller with same |
| CN110107596A (en) * | 2019-05-06 | 2019-08-09 | 格力电器（合肥）有限公司 | Sliding bearing, motor comprising sliding bearing and compressor |
| CN113389806A (en) * | 2020-03-11 | 2021-09-14 | 浙江盾安机电科技有限公司 | Sliding bearing and compressor with same |
| 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 |
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| JPS5945850B2 (en) * | 1979-07-13 | 1984-11-09 | 株式会社日立製作所 | 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 |
| US7407327B2 (en) * | 2003-03-21 | 2008-08-05 | Seagate Technology Llc | Method and system for withstanding shock in a spindle motor bearing |
| JP5249902B2 (en) * | 2009-10-16 | 2013-07-31 | 三菱重工業株式会社 | 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 |
| CN104083126B (en) * | 2014-07-21 | 2016-06-08 | 广东新宝电器股份有限公司 | Dust collector with pre-filtering and water retaining functions |
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