CN106194997A - Oscillating bearing and there is the high-pressure vacuum breaker of this oscillating bearing - Google Patents
Oscillating bearing and there is the high-pressure vacuum breaker of this oscillating bearing Download PDFInfo
- Publication number
- CN106194997A CN106194997A CN201610562118.2A CN201610562118A CN106194997A CN 106194997 A CN106194997 A CN 106194997A CN 201610562118 A CN201610562118 A CN 201610562118A CN 106194997 A CN106194997 A CN 106194997A
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- CN
- China
- Prior art keywords
- outer ring
- oscillating bearing
- described outer
- support shaft
- pressure vacuum
- 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.)
- Pending
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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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/02—Sliding-contact bearings
- F16C23/04—Sliding-contact bearings self-adjusting
- F16C23/043—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to a kind of oscillating bearing and there is the high-pressure vacuum breaker of this oscillating bearing, including there is the inner ring of spherical outside surface, being enclosed within the outer ring outside described inner ring and the support shaft being connected with described outer ring, the spherical outside surface of wherein said inner ring closely cooperates with the inwall of outer ring, described outer ring cross-section length in the horizontal direction is more than described outer ring length vertically, and described support shaft is along the vertical direction extension of described outer ring.The present invention is effectively increased the fatigue life of high-pressure vacuum breaker parts oscillating bearing, thus improves the Mechanical Reliability of mechanism.
Description
Technical field
The present invention relates to the technical field of primary cut-out, refer in particular to a kind of oscillating bearing and there is this oscillating bearing
High-pressure vacuum breaker.
Background technology
At present, the research of Power System Reliability is increasingly by worldwide common concern, and switchgear is as electricity
Control and protection device in Force system, aggravation Power System Reliability is run wind by the inefficacy of its one or more basic function
Danger.Cause switchgear and control equipment the principal element heavily lost efficacy include: insulation ag(e)ing, mechanical part fatigue failure,
The change of seal member type or ageing failure etc..
Primary cut-out is the important switchgear in power system.For high-pressure vacuum breaker, the work of oscillating bearing
Be chopper divide, power transmission during closing operation.The failure mode of oscillating bearing is the low cycle of metal material
Fatigue failure.During breaker closing, oscillating bearing is by active force upwards, its value size and chopper oscillating bearing
Above drive disk assembly quality is correlated with, and after moving contact contacts with static contact, oscillating bearing is acted on by touch spring counter-force,
Counter-force is gradually increased along with the compression of touch spring.During breaker open operation, before described moving contact separates with static contact, close
Bearings moves downward under the effect that operating mechanism tripping spring and touch spring are made a concerted effort, and described moving contact separates with static contact
After, oscillating bearing is by the active force of tripping spring.It addition, before and after described moving contact separates with static contact, oscillating bearing stress
In opposite direction, it equally can be by the impact force effect of internal bearing pin.Dividing through chopper repeatedly, closing a floodgate and circulate operation
After, oscillating bearing is susceptible to big displacement deformation and fracture failure, and the sphere two that its tired weak spot betides oscillating bearing is right
Side, the stress direction suffered with it is consistent.Therefore, in high-pressure vacuum breaker, oscillating bearing is a quick-wear part, repeatedly
Easily there is mechanical fatigue after divide-shut brake circulation operation, thus affect the Mechanical Reliability of mechanism.
Summary of the invention
To this end, the technical problem to be solved be to overcome in prior art the flimsy problem of oscillating bearing from
And provide a kind of service life long, and divide at high-pressure vacuum breaker, closing operation time, there is the joint shaft of preferable stressed effect
Hold and have the high-pressure vacuum breaker of this oscillating bearing.
For solving above-mentioned technical problem, a kind of oscillating bearing of the present invention, including have spherical outside surface inner ring, be enclosed within described
Outer ring outside inner ring and the support shaft being connected with described outer ring, the spherical outside surface of wherein said inner ring is tight with the inwall of outer ring
Coordinating, described outer ring cross-section length in the horizontal direction is more than described outer ring length vertically, and described support shaft edge
The vertical direction of described outer ring extends.
In one embodiment of the invention, the cross sectional shape of described outer ring is spindle.
In one embodiment of the invention, described support shaft be positioned at that cross sectional shape is the short axle in fusiform outer ring one
Hold, and direction is perpendicular to long axis direction.
In one embodiment of the invention, the cross sectional shape of described outer ring is track type.
In one embodiment of the invention, described support shaft is positioned at the centre on the long limit, outer ring that cross sectional shape is track type
Position, and direction is perpendicular to long limit.
Present invention also offers a kind of high-pressure vacuum breaker with this oscillating bearing, including described in above-mentioned any one
Oscillating bearing.
The technique scheme of the present invention has the advantage that compared to existing technology
Oscillating bearing of the present invention and have the high-pressure vacuum breaker of this oscillating bearing, described outer ring cross-section is in the horizontal direction
Length more than described outer ring length vertically, and described support shaft extends along the vertical direction of described outer ring, thus
It is effectively increased the fatigue life of high-pressure vacuum breaker parts oscillating bearing, thus improves the Mechanical Reliability of mechanism.
Accompanying drawing explanation
In order to make present disclosure be more likely to be clearly understood, below according to the specific embodiment of the present invention and combine
Accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 is the schematic perspective view of oscillating bearing described in the embodiment of the present invention one；
Fig. 2 is the schematic cross-section of Fig. 1；
Fig. 3 is the schematic perspective view of oscillating bearing described in the embodiment of the present invention two；
Fig. 4 is the schematic cross-section of Fig. 3.
Detailed description of the invention
Embodiment one:
Incorporated by reference to reference to shown in Fig. 1 and Fig. 2, the present embodiment provides a kind of oscillating bearing, including having the inner ring 11 of spherical outside surface, set
At the outer ring 12 outside described inner ring 11 and the support shaft 13 that is connected with described outer ring 12, the spherical outside surface of wherein said inner ring 11
Closely cooperating with the inwall of outer ring 12, cross section, described outer ring 12 length in the horizontal direction is more than described outer ring 12 vertically
Length, and described support shaft 13 along described outer ring 12 vertical direction extend.
Above-mentioned is core technology field of the present invention, and oscillating bearing of the present invention, including having the interior of spherical outside surface
Circle 11, outer ring 12 and support shaft 13, wherein said outer ring 12 is set in the outside of described inner ring 11, the ectosphere of described inner ring 11
Face closely cooperates with the inwall of outer ring 12, makes described inner ring 11 be embedded among described outer ring 12 rotatably, described
Support axle 13 is connected with described outer ring 12, and cross section, described outer ring 12 length in the horizontal direction is more than described outer ring 12 vertically
Length, thus not only contribute to extend the mechanical life of described oscillating bearing, improve the tired of oscillating bearing in primary cut-out
The labor life-span, and be conducive to improving the Mechanical Reliability of chopper, described support shaft 13 is prolonged along the vertical direction of described outer ring 12
Stretch, make the bearing of trend of described support shaft 13 be mutually perpendicular to the horizontal direction of described outer ring 12, be conducive to strengthening described joint
The support strength of bearing.
In the present embodiment, in order to extend the mechanical life of described oscillating bearing, meet cross section, described outer ring 12 along level side
To length more than described outer ring 12 length vertically, say, that: the length of described outer ring 12 is more than described outer ring
The width of 12, the cross sectional shape of described outer ring 12 can be spindle.Analyzed by mechanical fatigue, described fusiform outer ring 12
When the axial length of major cross-sectional axis is more than the axial length of short axle, when primary cut-out carry out certain number of times point, after closing operation, described pass
Bearings only occurs that thin tail sheep type becomes, and can't crack.It addition, described support shaft 13 is positioned at described spindle outer ring 12
One end of short axle, and direction is perpendicular to long axis direction, thus be conducive to strengthening the support strength of described oscillating bearing.Should be noted that
: for having the oscillating bearing of spindle outer ring 12, during manufacture, first diamondwise is done in the outer ring 12 of bearing, then distinguish
Four angles of rhombus being carried out rounding process, and the fillet that two relative angles are fallen is identical, next makes the four edges of rhombus
Tangent with four circular arcs poured out respectively, thus obtain the structure of spindle outer ring 12.
Embodiment two:
Refer to shown in Fig. 3 and Fig. 4, the present embodiment also provides for a kind of oscillating bearing, in order to extend the machinery of described oscillating bearing
In the life-span, meet cross section, described outer ring 12 length in the horizontal direction more than described outer ring 12 length vertically, described outside
The cross sectional shape of circle 12 can also be track type.Being analyzed by mechanical fatigue, described cross section is that the outer ring 12 of track type is along level
The length in direction more than length vertically, when primary cut-out carry out certain number of times point, after closing operation, described pass
Bearings the most only occurs that thin tail sheep type becomes, and can't crack.It addition, it is runway that described support shaft 13 is positioned at cross sectional shape
The middle part on long limit, shape outer ring 12, and direction is perpendicular to long limit, thus be conducive to strengthening the support strength of described oscillating bearing.
It is to be noted that for the oscillating bearing with track type outer ring 12, during manufacture, by the two of rectangle broadsides with two diameters
The semi arch equal with rectangle width replaces, and makes two long limits of rectangle tangent with the two semi arch respectively, thus is run
The structure of shape outer ring, road 12.
The cross sectional shape of outer ring 12 of the present invention is not limited to spindle or track type, and other meets described outer ring 12
Cross section length in the horizontal direction is likely to extend described joint more than the shape of described outer ring 12 length vertically
In the service life of bearing, the most no longer itemize.
The present invention is analyzed by mechanical fatigue, when primary cut-out carry out certain number of times point, after closing operation, described pass
Bearings only occurs in that thin tail sheep type becomes, and will not crack, and overcomes traditional oscillating bearing and occurs that big displacement type becomes fracture
The problem lost efficacy, therefore improves the mechanical fatigue life of described oscillating bearing.
No matter embodiment one or embodiment two, the material that described oscillating bearing uses is 1Cr18Ni9Ti.
Embodiment three:
The present embodiment provides a kind of high-pressure vacuum breaker, and described high-pressure vacuum breaker includes in embodiment one or embodiment two
Described oscillating bearing, describes in detail owing to oscillating bearing described in embodiment one or embodiment two has the advantage that, the highest
Pressure vacuum circuit breaker also has above-mentioned advantage, illustrates the most one by one.
To sum up, technical scheme of the present invention has the advantage that
Oscillating bearing the most of the present invention, including having the inner ring of spherical outside surface, outer ring and support shaft, wherein said outer ring is sheathed
In the outside of described inner ring, the spherical outside surface of described inner ring closely cooperates with the inwall of outer ring, makes described inner ring rotatably
Being embedded among described outer ring, described support shaft is connected with described outer ring, and described outer ring cross-section length in the horizontal direction is more than
Described outer ring length vertically, thus not only contribute to extend the mechanical life of described oscillating bearing, improve height and break
The fatigue life of oscillating bearing in the device of road, and be conducive to improving the Mechanical Reliability of chopper, described support shaft is along outside described
The vertical direction of circle extends, and makes the bearing of trend of described support shaft be mutually perpendicular to the horizontal direction of described outer ring, is conducive to increasing
The support strength of strong described oscillating bearing.
Oscillating bearing the most of the present invention, the cross sectional shape of described outer ring 12 can be spindle or be track type, from
And be conducive to strengthening the support strength of described oscillating bearing.When primary cut-out carry out certain number of times point, after closing operation, institute
State oscillating bearing and only occur that thin tail sheep type becomes, can't crack.
Obviously, above-described embodiment is only for clearly demonstrating example, the not restriction to embodiment.For
For those of ordinary skill in the field, the change of other multi-form can also be made on the basis of the above description or become
Dynamic.Here without also cannot all of embodiment be given exhaustive.And the obvious change thus extended out or change
Move among still in the protection domain of the invention.
Claims (6)
1. an oscillating bearing, including have spherical outside surface inner ring, be enclosed within the outer ring outside described inner ring and with described outer ring
The support shaft being connected, the spherical outside surface of wherein said inner ring closely cooperates with the inwall of outer ring, it is characterised in that: described outer ring cross-section
Length in the horizontal direction is more than described outer ring length vertically, and described support shaft is along the vertical direction of described outer ring
Extend.
Oscillating bearing the most according to claim 1, it is characterised in that: the cross sectional shape of described outer ring is spindle.
Oscillating bearing the most according to claim 2, it is characterised in that: it is fusiform that described support shaft is positioned at cross sectional shape
One end of the short axle in outer ring, and direction is perpendicular to long axis direction.
Oscillating bearing the most according to claim 1, it is characterised in that: the cross sectional shape of described outer ring is track type.
Oscillating bearing the most according to claim 4, it is characterised in that: it is track type that described support shaft is positioned at cross sectional shape
The middle part on long limit, outer ring, and direction is perpendicular to long limit.
6. a high-pressure vacuum breaker with this oscillating bearing, it is characterised in that: include any one in claim 1-5
Described oscillating bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610562118.2A CN106194997A (en) | 2016-07-15 | 2016-07-15 | Oscillating bearing and there is the high-pressure vacuum breaker of this oscillating bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610562118.2A CN106194997A (en) | 2016-07-15 | 2016-07-15 | Oscillating bearing and there is the high-pressure vacuum breaker of this oscillating bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106194997A true CN106194997A (en) | 2016-12-07 |
Family
ID=57475142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610562118.2A Pending CN106194997A (en) | 2016-07-15 | 2016-07-15 | Oscillating bearing and there is the high-pressure vacuum breaker of this oscillating bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106194997A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB432370A (en) * | 1933-02-08 | 1935-07-25 | August Riebe | Improvements in or relating to journal bearings |
| SE301257B (en) * | 1964-04-23 | 1968-05-27 | Skf Kugellagerfabriken Gmbh | |
| CN201351678Y (en) * | 2009-02-16 | 2009-11-25 | 西北工业大学 | Oscillating bearing made of engineering plastic |
| CN101684842A (en) * | 2009-05-15 | 2010-03-31 | 北京金业联和电机有限公司 | Aligning sliding bearing for efficient air valve of subway |
| CN201475165U (en) * | 2009-09-08 | 2010-05-19 | 王国平 | Oscillating bearing |
-
2016
- 2016-07-15 CN CN201610562118.2A patent/CN106194997A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB432370A (en) * | 1933-02-08 | 1935-07-25 | August Riebe | Improvements in or relating to journal bearings |
| SE301257B (en) * | 1964-04-23 | 1968-05-27 | Skf Kugellagerfabriken Gmbh | |
| CN201351678Y (en) * | 2009-02-16 | 2009-11-25 | 西北工业大学 | Oscillating bearing made of engineering plastic |
| CN101684842A (en) * | 2009-05-15 | 2010-03-31 | 北京金业联和电机有限公司 | Aligning sliding bearing for efficient air valve of subway |
| CN201475165U (en) * | 2009-09-08 | 2010-05-19 | 王国平 | Oscillating bearing |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |