CN106640967B - A kind of gas foil bearing of horizontal online adjustable clearance - Google Patents
A kind of gas foil bearing of horizontal online adjustable clearance Download PDFInfo
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- CN106640967B CN106640967B CN201611101832.8A CN201611101832A CN106640967B CN 106640967 B CN106640967 B CN 106640967B CN 201611101832 A CN201611101832 A CN 201611101832A CN 106640967 B CN106640967 B CN 106640967B
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- bearing
- seat shell
- hole
- slot
- foil
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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
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
Abstract
The present invention relates to foil bearing technical fields, especially a kind of gas foil bearing of horizontal online adjustable clearance, including bearing outer seat shell, the two sides up and down of the bearing outer seat shell are provided with bearing lateral side baffle, the bearing outer seat shell offers corresponding first through hole with four ends of bearing lateral side baffle, and the second through-hole is provided between two neighboring first through hole, fixing bolt is provided in the second through-hole on same vertical direction, limiting slot is offered in the middle part of the bearing outer seat shell, adjustable bearings inner seat is provided in the limiting slot.Bearing arrangement of the invention is flexible, the circle of contact radius of paillon can be accurately controlled using the label bolt for adjusting disk with a scale in a certain range, in the process of running, it can be in real time according to the load of rotor, on-line control paillon circle of contact radius, bearing working can be made to extend bearing life in optimum state, keep working rotor more stable.
Description
Technical field
The present invention relates to foil bearing technical fields, more particularly to a kind of gas paillon axis of horizontal online adjustable clearance
It holds.
Background technique
Currently, aerodynamic elastic foil bearing product has been widely used, but the producer pole of foil bearing can be produced
It is few, it is seen that its processing technology is considerably complicated.A kind of form of the foil bearing as early stage foil bearing has structure simple, easily
In processing, and meet the power demand of miniature high-speed underloading rotating machinery, but in the non-adjustable gas foil bearing in gap and
In self-adjusting aerodynamic elastic foil bearing, paillon circle of contact radius is fixed, after foil bearing completes manufacture, gas paillon
Bearing can not carry out the adjustment of paillon circle of contact radius in the process of running, so that the gap of bearing can not be in a wide range of interior adjustment.
And in foil bearing design process, paillon circle of contact radius is extremely difficult to scheduled design effect, so that foil bearing
There are biggish difference with operating status for design.Meanwhile foil bearing is after running for a period of time, due to foil configuration assembly building
The change of gap, so that biggish transformation occurs for bearing characteristics, it is therefore desirable to which one kind can be according to the gas of operating status on-line control
Body foil bearing structure.
Summary of the invention
Present invention solves the technical problem that being to overcome the deficiencies of existing technologies, the horizontal online adjustable clearance of one kind is provided
Gas foil bearing.The foil bearing has the characteristics that flexible structure, bearing spacing are adjustable.
The purpose of the present invention is to solve disadvantages existing in the prior art, and the one kind proposed is horizontal adjustable online
The gas foil bearing of gap.
To achieve the goals above, present invention employs following technical solutions：
Design a kind of gas foil bearing of horizontal online adjustable clearance, including bearing outer seat shell, the bearing outer seat
The two sides up and down of shell are provided with bearing lateral side baffle, and the bearing outer seat shell and four ends of bearing lateral side baffle open up
There is corresponding first through hole, and is provided with the second through-hole between two neighboring first through hole, on same vertical direction
Fixing bolt is provided in two through-holes；
Limiting slot is offered in the middle part of the bearing outer seat shell, and adjustable bearings inner seat is provided in the limiting slot,
The adjustable bearings inner seat includes four bearing inner seat shells, and four bearing inner seat shells are adjacent two-by-two in limiting slot
It places, and its middle part is rounded, and paillon is provided in the rounded face, is provided between every two bearing inner seat shell
Spring block；
The inside of the bearing outer seat shell laterally and it is vertical on open up that there are four round through slots respectively, and laterally with
Round through slot on vertical is not connected, and four round through slots are respectively uniformly distributed in the two sides of limiting slot, the circle through slot
Outer end be additionally provided with threaded hole, the threaded hole be with round through slot be arranged concentrically, and the inner end of each round through slot with
Limiting slot communicates；
It is inserted with drive rod in the circle through slot, the bottom side of the drive rod offers cylindrical groove along its length
Item is provided with rolling element in the cylinder groove bar, and the threaded hole internal screw thread is connected with label bolt, and marks the interior of bolt
End is to contact setting with the outer end of drive rod, and the outer end of the label bolt is provided with dial.
Preferably, third through-hole, and the inside of bearing inner seat housing central section are offered in the middle part of the bearing inner seat shell
For arc surface, two retention beads are arranged at intervals on two convex blocks of the bearing inner seat shell, the retention bead is equal
With the ipsilateral setting of arc surface, four retention beads on each adjacent two bearing inner seat shell connect to form stop zone, and
Spring block is provided in the stop zone.
Preferably, the spring block is by multiple flat paillons and multiple waveform foils are welded combines, and
And flat paillon and waveform foil are interlaced setting.
Preferably, the quantity for forming the flat paillon of spring block is 5-10, and the quantity of waveform foil is 4-9.
Preferably, the quantity of the paillon is 4-8.
The gas foil bearing of the horizontal online adjustable clearance of one kind proposed by the present invention, beneficial effect are：Of the invention
Bearing arrangement is flexible, can accurately control the circle of contact half of paillon using the label bolt for adjusting disk with a scale in a certain range
Diameter adjusts paillon circle of contact radius according to the load real-time online of rotor under operation, and bearing working can be made in optimum state,
Extend bearing life, keeps working rotor more stable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the gas foil bearing of the horizontal online adjustable clearance of one kind proposed by the present invention；
Fig. 2 is the bearing outer seat shell structure of the gas foil bearing of the horizontal online adjustable clearance of one kind proposed by the present invention
Schematic diagram；
Fig. 3 is the bearing lateral side baffle structure of the gas foil bearing of the horizontal online adjustable clearance of one kind proposed by the present invention
Schematic diagram；
Fig. 4 is the side view of the gas foil bearing of the horizontal online adjustable clearance of one kind proposed by the present invention；
Fig. 5 is the spring block structural representation of the gas foil bearing of the horizontal online adjustable clearance of one kind proposed by the present invention
Figure；
Fig. 6 is the bearing inner seat shell structure of the gas foil bearing of the horizontal online adjustable clearance of one kind proposed by the present invention
Schematic diagram.
In figure：Bearing outer seat shell 1, bearing inner seat shell 2, spring block 3, paillon 4, drive rod 5, rolling element 6, label
Bolt 7, fixing bolt 8, bearing lateral side baffle 9, limiting slot 10, round through slot 11, threaded hole 12, first through hole 13, second are logical
Hole 14, flat paillon 15, waveform foil 16, retention bead 17, third through-hole 18, dial 19.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-6, a kind of gas foil bearing of horizontal online adjustable clearance, including bearing outer seat shell 1, the axis
The two sides up and down for holding outer seat shell body 1 are provided with bearing lateral side baffle 9, the bearing outer seat shell 1 and bearing lateral side baffle 9
Four ends offer corresponding first through hole 13, and the second through-hole 14 is provided between two neighboring first through hole 13, together
Fixing bolt 8 is provided in the second through-hole 14 on one vertical direction.
The middle part of the bearing outer seat shell 1 offers limiting slot 10, is provided with adjustable bearings in the limiting slot 10
Inner seat, the adjustable bearings inner seat include four bearing inner seat shells 2, and four bearing inner seat shells 2 are in limiting slot 10
To be placed adjacent two-by-two, and its middle part is rounded, and paillon 4 is provided in the rounded face, and the quantity of the paillon 4 is 4-
8, the paillon within the scope of this number can preferably adjust the geometric radius of the foil bearing circle of contact, realize goal of the invention, often
Spring block 3 is provided between two bearing inner seat shells 2, spring block 3 is convenient for that bearing is adjusted.
The middle part of the bearing inner seat shell 2 offers third through-hole 18, and through-hole is easily installed use, and bearing inner seat shell
The inside at 2 middle part of body is arc surface, is arranged in this way and the shape of paillon 4 is adapted, convenient for being installed to paillon 4, the axis
It holds and is arranged at intervals with two retention beads 17 on two convex blocks of inner seat shell 2, the retention bead 17 is same with arc surface
Side is arranged, and four retention beads 17 connection on each adjacent two bearing inner seat shell 2 forms stop zone, and the spacing zone
Spring block 3 is provided in domain, the spring block 3 is by multiple flat paillons 15 and the welded combination of multiple waveform foils 16
Together, and flat paillon 15 and waveform foil 16 are interlaced setting, form the quantity of the flat paillon 15 of spring block 3
It is 5-10, and the quantity of waveform foil 16 is 4-9, the quantity of flat paillon 15 and waveform foil 16 can be according to gap tune
Section needs to be configured, and the quantity of the flat paillon 15 and waveform foil 16 within the scope of this number is convenient for user's adjusting
With use.
The inside of the bearing outer seat shell 1 laterally and it is vertical on opened up respectively there are four round through slot 11, and it is horizontal
To with it is vertical on round through slot 11 it is not connected, four round through slots 11 are respectively uniformly distributed in the two sides of limiting slot 10, institute
The outer end for stating round through slot 11 is additionally provided with threaded hole 12, and the threaded hole 12 is arranged concentrically with circle through slot 11, and each
The inner end of round through slot 11 is communicated with limiting slot 10.
It is inserted with drive rod 5 in the circle through slot 11, the bottom side of the drive rod 5 offers cylinder along its length
Shape groove bar is provided with rolling element 6 in the cylinder groove bar, and 12 internal screw thread of threaded hole is connected with label bolt 7, and marks
The inner end of bolt 7 is to contact setting with the outer end of drive rod 5, and user can be by marking bolt 7 to twisting inside threaded hole 12
The spacing of two neighboring bearing inner seat shell 2 is adjusted in tight depth, and the outer end of the label bolt 7 is provided with dial
19, dial 19 is adjusted label bolt 7 convenient for user.
The working principle of the invention：Nonadjustable gas foil bearing or self-adjusting aerodynamic elastic foil axis in gap
In holding, paillon circle of contact radius is fixed, and in foil bearing design process, paillon circle of contact radius is extremely difficult to scheduled set
Count effect；While foil bearing is after running for a period of time, since foil configuration fit-up gap disappears, so that the foil bearing circle of contact
Radius changes；This missing can effectively be made up using online adjustable clearance gas foil bearing, pass through rotary label spiral shell
Bolt 7, the spacing between adjustable bearing inner seat shell 2, so that on-line control paillon circle of contact radius, makes up to scheduled work
Make state.
Bearing arrangement of the invention is flexible, in a certain range can be quasi- using the label bolt 7 for adjusting disk 19 with a scale
Really the circle of contact radius of control paillon can make bearing working in best shape according to the load on-line control paillon circle of contact radius of rotor
State extends bearing life, keeps working rotor more stable.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of gas foil bearing of horizontal online adjustable clearance, including bearing outer seat shell (1), the bearing outer seat shell
(1) two sides up and down are provided with bearing lateral side baffle (9), which is characterized in that the bearing outer seat shell (1) and bearing side
Four ends of baffle (9) offer corresponding first through hole (13), and are provided between two neighboring first through hole (13)
Second through-hole (14) is provided with fixing bolt (8) in the second through-hole (14) on same vertical direction；
It is offered limiting slot (10) in the middle part of the bearing outer seat shell (1), is provided with adjustable nodal axisn in the limiting slot (10)
Inner seat is held, the adjustable bearings inner seat includes four bearing inner seat shells (2), and four bearing inner seat shells (2) are limiting
Position slot (10) is to be placed adjacent two-by-two, and its middle part is rounded, and paillon (4), every two axis are provided in the rounded face
It holds and is provided with spring block (3) between inner seat shell (2)；
The inside of the bearing outer seat shell (1) laterally and it is vertical on opened up respectively there are four round through slot (11), and it is horizontal
To with it is vertical on round through slot (11) it is not connected, four round through slots (11) are respectively uniformly distributed the two of limiting slot (10)
The outer end of side, the circle through slot (11) is additionally provided with threaded hole (12), and the threaded hole (12) and round through slot (11) are same
Heart setting, and the inner end of each round through slot (11) is communicated with limiting slot (10)；
It is inserted with drive rod (5) in the circle through slot (11), the bottom side of the drive rod (5) offers circle along its length
Cylindricality groove bar, it is described cylinder groove bar in be provided with rolling element (6), threaded hole (12) internal screw thread is connected with label bolt
(7), and mark the inner end of bolt (7) with the outer end of drive rod (5) to contact setting, the outer end of label bolt (7) is all provided with
It is equipped with dial (19).
2. the gas foil bearing of the horizontal online adjustable clearance of one kind according to claim 1, which is characterized in that the axis
It holds and offers third through-hole (18) in the middle part of inner seat shell (2), and the inside in the middle part of bearing inner seat shell (2) is arc surface, institute
It states and is arranged at intervals with two retention beads (17) on two convex blocks of bearing inner seat shell (2), the retention bead (17) is equal
With the ipsilateral setting of arc surface, four retention beads (17) connection on each adjacent two bearing inner seat shell (2) forms spacing zone
Domain, and spring block (3) are provided in the stop zone.
3. the gas foil bearing of the horizontal online adjustable clearance of one kind according to claim 1, which is characterized in that the bullet
Spring block (3) is by multiple flat paillons (15) and multiple waveform foils (16) are welded combines, and flat paillon
(15) and waveform foil (16) is interlaced setting.
4. the gas foil bearing of the horizontal online adjustable clearance of one kind according to claim 3, which is characterized in that composition bullet
The quantity of the flat paillon (15) of spring block (3) is 5-10, and the quantity of waveform foil (16) is 4-9.
5. the gas foil bearing of the horizontal online adjustable clearance of one kind according to claim 1, which is characterized in that the foil
The quantity of piece (4) is 4-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611101832.8A CN106640967B (en) | 2016-12-05 | 2016-12-05 | A kind of gas foil bearing of horizontal online adjustable clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611101832.8A CN106640967B (en) | 2016-12-05 | 2016-12-05 | A kind of gas foil bearing of horizontal online adjustable clearance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106640967A CN106640967A (en) | 2017-05-10 |
| CN106640967B true CN106640967B (en) | 2018-11-20 |
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ID=58818340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611101832.8A Active CN106640967B (en) | 2016-12-05 | 2016-12-05 | A kind of gas foil bearing of horizontal online adjustable clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640967B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727706A (en) * | 2004-07-26 | 2006-02-01 | 三星Techwin株式会社 | Hydrodynamic fluid film bearing and bearing housing with cooling capacity |
| CN101132870A (en) * | 2004-06-15 | 2008-02-27 | 艾利·厄尔-舍费 | Methods of controlling the instability in fluid film bearings |
| CN101796314A (en) * | 2007-08-10 | 2010-08-04 | 株式会社Ihi | Foil bearing device |
| CN102003463A (en) * | 2009-08-31 | 2011-04-06 | 扭力士有限公司 | Journal-foil air bearing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8083413B2 (en) * | 2007-10-23 | 2011-12-27 | General Electric Company | Compliant hybrid gas journal bearing using integral wire mesh dampers |
-
2016
- 2016-12-05 CN CN201611101832.8A patent/CN106640967B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101132870A (en) * | 2004-06-15 | 2008-02-27 | 艾利·厄尔-舍费 | Methods of controlling the instability in fluid film bearings |
| CN1727706A (en) * | 2004-07-26 | 2006-02-01 | 三星Techwin株式会社 | Hydrodynamic fluid film bearing and bearing housing with cooling capacity |
| CN101796314A (en) * | 2007-08-10 | 2010-08-04 | 株式会社Ihi | Foil bearing device |
| CN102003463A (en) * | 2009-08-31 | 2011-04-06 | 扭力士有限公司 | Journal-foil air bearing |
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| Publication number | Publication date |
|---|---|
| CN106640967A (en) | 2017-05-10 |
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