CN107191488A - A kind of magnetic liquid dual suspension passive bearing journal bearing - Google Patents
A kind of magnetic liquid dual suspension passive bearing journal bearing Download PDFInfo
- Publication number
- CN107191488A CN107191488A CN201710534748.3A CN201710534748A CN107191488A CN 107191488 A CN107191488 A CN 107191488A CN 201710534748 A CN201710534748 A CN 201710534748A CN 107191488 A CN107191488 A CN 107191488A
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- China
- Prior art keywords
- bearing
- stator
- permanent
- magnetic
- bearing block
- 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
- 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
- F16C32/0629—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 liquid cushion, e.g. oil cushion
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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
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0459—Details of the magnetic circuit
-
- 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
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0474—Active magnetic bearings for rotary movement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The present invention discloses a kind of magnetic liquid dual suspension passive bearing journal bearing, and the bearing includes bearing cap, bearing block, stator, permanent-magnetic clamp and axle；The stator is placed on bearing block, is interference fits between bearing block 4 and stator；Permanent-magnetic clamp is sleeved in stator, is coordinated between stator and permanent-magnetic clamp for gap；Permanent-magnetic clamp is sleeved on axle, and between centers using interference fit；Bearing cap is sleeved on stator and is fixed on bearing block, is interference fits between bearing cap and stator.The present invention can collect the advantage and the whole body of fluid pressure and the supporting system of magnetic suspension two, the bearing capacity and rigidity of bearing can be increased considerably, without being individually equipped with aiding support and circulating cooling system, without complicated electric-control system, the design limitation of oil-recovery tank can be released, the precision and rigidity of bearing arrangement is improved.
Description
Art
The present invention relates to the design field of sliding bearing, a kind of heavy duty, the magnetic liquid dual suspension quilt of big rigidity are particularly designed
Dynamic journal bearing.
Background technology
Hydrodynamic journal liquid polymers have the advantages that radial rigidity is good, positioning precision is high, good anti-vibration, therefore obtain most attention
And extensive use.With the development of global industry, in high-power, heavily loaded, high-speed cruising occasion, hydrodynamic journal liquid polymers frictional work
Rate is very big, bearing is produced larger thermal deformation because temperature is too high.So-called magnetic bearing is the suction and repulsion using magnetic
To support the bearing of rotation, magnetic suspension bearing is also.Its advantage is that moment of torsion is small, is conducive to revolution at a high speed, can be made in a vacuum
With applicable wide temperature range, low noise, long lifespan, unlubricated caused pollution etc.；Have the disadvantage that cost is high, bearing capacity phase
To relatively low.So, the present invention uses cooperatively hydrodynamic journal liquid polymers with electromagnetic bearing, integrates the two advantage, and to some
Concrete structure is improved, and research and development one kind can bear heavy duty, the bearing arrangement of big rigidity.
The content of the invention
The problem of being existed according to above-mentioned prior art, the present invention provides a kind of high-bearing capacity and the bearing arrangement of rigidity.Adopt
It is combined with hydrostatic supporting system and magnetic suspension bearing system, constitutes New Magnetic Field Controlled liquid dual suspension bearing arrangement.
In order to solve above-mentioned technical problem, the present invention is achieved by the following technical solutions：
A kind of magnetic liquid dual suspension passive bearing journal bearing, the bearing include bearing cap 1, bearing block 4, stator 12,
Permanent-magnetic clamp 15 and axle 5；
It is semi-circular structure on the inside of the bearing cap, the radial section structure of the inner side of bearing cap 1 and the inner side of bearing block 4
Into a complete circle；The inside structure of bearing cap 1 is full symmetric along its composition surface with the inside structure of bearing block 4；Institute
State the top of bearing cap 1 and be respectively equipped with total hole for back flow 19, radially center is provided with back in the cambered surface of the inner side of bearing cap 1
Liquid bath 20, is radially arranged with four road seal grooves 21 in the both sides of liquid return trough 20, O-ring is embedded with seal groove 21
12, two admission chambers 18 are radially equipped with the middle of two seals ring recess 21；
Liquid circular hole 22 circumferentially is returned provided with array arrangement at axial centre position on the circumference of stator 16, liquid is being returned
The both sides of circular hole 22 are circumferentially provided with the radial direction through hole 23 of array arrangement, return liquid circular hole 22 and radial direction through hole 23 is interlaced；Institute
State in the inside circumference of stator 16 circumferentially provided with two groups of monopole magnetic pole groups 24 arranged side by side；Every group of monopole magnetic pole group 24 has n monopole
Magnetic pole, n is that rectangular channel 25 is provided with the middle part of the natural number more than or equal to 4, each monopole magnetic pole, and rectangular channel 25 connects with radial direction through hole
It is logical, it is around with coil 14 in each monopole magnetic pole；
Section is H type structures to the permanent-magnetic clamp 15 vertically；
The stator 16 is placed on bearing block 4, is interference fits between bearing block 4 and stator 16；Permanent-magnetic clamp 15 is sleeved on
In stator 16, coordinate between stator 16 and permanent-magnetic clamp 15 for gap；Permanent-magnetic clamp 15 is sleeved on axle 5, and using interference between axle 5
Coordinate；Bearing cap 1 is sleeved on stator 16 and is fixed on bearing block 4, is interference fits between bearing cap 1 and stator 16；In axle
Hold and be set with reinforced seal 13 on the axle 5 between lid 1 and bearing block 4, encapsulated in the outside of reinforced seal 13 by end cap 6.
Due to using above-mentioned technical proposal, a kind of passive journal bearing system of the dual suspension of electromagnetism hydrostatic that the present invention is provided
System, compared with prior art with such beneficial effect：
The present invention can collect the advantage of fluid pressure and the supporting system of magnetic suspension two with that all over the body, can increase considerably bearing
Bearing capacity and rigidity, without being individually equipped with aiding support and circulating cooling system, without complicated electric-control system, can solve
Except the design of oil-recovery tank is limited, the precision and rigidity of bearing arrangement are improved.
The present invention is bonded the design of mutual exclusion pole pair using electromagnet permanent magnet, and the base of electromagnetic repulsion force is adjusted in electromagnet
On plinth, permanent magnet is used so that the structure of the design is more simplified.
Brief description of the drawings
Fig. 1 is the overall schematic of magnetic liquid dual suspension passive bearing journal bearing of the present invention；
Fig. 2 is the whole sectional view of magnetic liquid dual suspension passive bearing journal bearing of the present invention；
Fig. 3 is bearing cap cut-away view；
Fig. 4 is that stator structure is illustrated to be intended to；
Fig. 5 is permanent-magnetic clamp structural representation.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
A kind of magnetic liquid dual suspension passive bearing journal bearing of the present invention, as shown in Figure 1-2, the bearing include bearing
Lid 1, bearing block 4, stator 12, permanent-magnetic clamp 15 and axle 5；
As shown in Figure 1,3, it is semi-circular structure on the inside of the bearing cap, the inner side of bearing cap 1 and the inner side of bearing block 4
Radial section constitute a complete circle；The inside structure of bearing cap 1 and the inside structure of bearing block 4 are along its composition surface
It is full symmetric；The top of bearing cap 1 is respectively equipped with four total hole for back flow 19, feed liquor hole connector 3 is provided with its sidepiece, described
It is uniformly distributed along the circumference on bearing cap 1 and bearing block 4 and is additionally provided with several screw plugs 2 for blocking technique processing hole；In the bearing cap 1
Radially center is provided with liquid return trough 20 in the cambered surface of side, and the sealing of four roads is radially arranged with the both sides of liquid return trough 20
Ring recess 21, O-ring 12 is embedded with seal groove 21, and two admission chambers are radially equipped with the middle of two seals ring recess 21
18；In the outside of bearing cap 1, total hole for back flow 19 goes out to be machined with platform 9, and liquid joint 10 is always returned for installing；Four inlet openings 19
It is respectively connected with leading to four admission chambers 18；
As shown in Figure 2,4, eight of array arrangement are circumferentially provided with the axial centre position on the circumference of stator 16
Liquid circular hole 22 is returned, the both sides of liquid circular hole 22 circumferentially eight radial direction through hole 23 provided with array arrangement is being returned, is going back to liquid circular hole 22 and footpath
It is interlaced to through hole 23；Circumferentially provided with two groups of monopole magnetic pole groups 24 arranged side by side in the inside circumference of stator 16；Every group
Monopole magnetic pole group 24, which has, is provided with rectangular channel 25 in the middle part of eight monopole magnetic poles, each monopole magnetic pole, rectangular channel 25 connects with radial direction through hole
It is logical, it is around with coil 14 in each monopole magnetic pole；
The structure chart of permanent-magnetic clamp 15 is illustrated in figure 5, the permanent-magnetic clamp 15 is H type structures along shaft section；
As Figure 1-3, the stator 16 is placed on bearing block 4, is interference fits between bearing block 4 and stator 16, is matched somebody with somebody
It is 10 μm to close gap；Permanent-magnetic clamp 15 is sleeved in stator 16, is coordinated between stator 16 and permanent-magnetic clamp 15 for gap；15 sets of permanent-magnetic clamp
On axle 5, and using interference fit between axle 5；Bearing cap 1 is sleeved on stator 16 and is fixed on bearing block 4, bearing cap 1
It is interference fits between stator 16；Reinforced seal 13 is set with axle 5 between bearing cap 1 and bearing block 4, it is close in skeleton
The outside of envelope 13 is encapsulated by end cap 6, and end cap 6 is fixed on bearing cap 1 and bearing block 4 using the first screw 7；Bearing block 4 is provided with 4
Individual screwed hole, bearing cap 1 is provided with 4 screwed holes 17 with the correspondence position of bearing block 4, will at screwed hole 17 using the second screw 8
Bearing cap 1 is fixed on bearing block 4.
The passage that flows through of water is：23 → rectangular channel of inlet opening 11 → admission chamber, 18 → radial direction through hole 25 → time liquid circular hole 22 →
Liquid return trough 20 → total hole for back flow 19.
The active magnetic bearing system of the bearing is made up of stator 16, permanent-magnetic clamp 15, coil 14 and axle 5.
Axial magnetic loop is formed after coil 14 is powered, between the monopole magnetic pole group 24 on stator 16.Axle is formed in permanent-magnetic clamp 15
To magnetic loop.Pole polarity correspondence on stator 16, permanent-magnetic clamp 15 is identical, produces repulsion.
The magnetic liquid dual suspension bearing arrangement of the bearing includes：O-ring 12, reinforced seal 13, end cap 6, feed liquor hole connector
3rd, total hole for back flow joint 10, screw 7, screw 8 and screw plug 2.
Case study on implementation
The present invention is elaborated below in conjunction with the accompanying drawings：It is used as a kind of preferred scheme, a diameter of 50mm of axle 5；Stator
Each monopole magnetic pole winding portion length 18mm, width 15mm, height in 16 diameter 114mm, thickness 10mm, monopole magnetic pole group 24
Each monopole pole end piece projection rectangle Area length 28mm in 10mm, monopole magnetic pole group 24 is spent, width 15mm, number of arrays is 8,
The diameter 6mm of radial direction through hole 23, number of arrays is 8, the long 15mm of projection rectangle, the width 5mm of groove 25, returns the diameter 6mm of liquid circular hole 22, array
Number is 8；The external diameter 84mm of permanent-magnetic clamp 15, central diameter 57mm, internal diameter 50mm, length 50mm.
During initialization, coil 14 is powered, the formation flux circuit of monopole magnetic pole group 24 on stator 16.The two ends of permanent-magnetic clamp 15
Form flux circuit.Stator 16 and permanent-magnetic clamp 15 correspondence pole polarity are identical, produce repulsion so that axle 5 without mechanical friction,
It is non-lubricating to suspend；Water flows into admission chamber 18 by fuel feed hole 11, and rectangular channel 25 is flowed into by radial direction through hole 23, produces static pressure
Power；Electromagnetic force and static pressure interaction so that axle 5 is in hydrostatic pressure effect low suspension supporting.
During work, water flows into back liquid circular hole 22 from rectangular channel 25, then unidirectionally flows through and cools down monopole magnetic pole group 24 and line
Circle 14, flows into liquid return trough 20, is flowed out from total liquid return hole 19.
Claims (2)
1. a kind of magnetic liquid dual suspension bearing, it is characterised in that：The bearing includes bearing cap (1), bearing block (4), stator
(12), permanent-magnetic clamp (15) and axle (5)；
It is the radial section structure on the inside of semi-circular structure, the bearing cap (1) and on the inside of the bearing block (4) on the inside of the bearing cap
Into a complete circle；Bearing cap (1) inside structure and the bearing block (4) inside structure are completely right along its composition surface
Claim；Bearing cap (1) top is respectively equipped with total hole for back flow (19), in the cambered surface on the inside of the bearing cap (1) radially in
Heart position is provided with liquid return trough (20), radially four road seal grooves (21) is arranged with the liquid return trough (20) both sides, close
Seal groove (21) is embedded with O-ring (12), and two admission chambers (18) are radially equipped with the middle of two seals ring recess (21)；
Liquid circular hole (22) circumferentially is returned provided with array arrangement at axial centre position on stator (16) circumference, liquid is being returned
Circular hole (22) both sides are circumferentially provided with the radial direction through hole (23) of array arrangement, return liquid circular hole (22) and are mutually handed over radial direction through hole (23)
It is wrong；Circumferentially provided with two groups of monopole magnetic pole groups (24) arranged side by side in the stator (16) inside circumference；Every group of monopole magnetic pole group
(24) there is n monopole magnetic pole, n is to be provided with rectangular channel (25), rectangular channel in the middle part of the natural number more than or equal to 4, each monopole magnetic pole
(25) connected with radial direction through hole, coil (14) is around with each monopole magnetic pole；
Section is H type structures to the permanent-magnetic clamp (15) vertically；
The stator (16) is placed on bearing block (4), is interference fits between bearing block (4) and stator (16)；Permanent-magnetic clamp (15)
It is sleeved in stator (16), coordinates between stator (16) and permanent-magnetic clamp (15) for gap；Permanent-magnetic clamp (15) is sleeved on axle (5),
And using interference fit between axle (5)；Bearing cap (1) is sleeved on stator (16) and is fixed on bearing block (4), bearing cap (1)
It is interference fits between stator (16)；Reinforced seal is set with axle (5) between bearing cap (1) and bearing block (4)
(13), encapsulated on the outside of reinforced seal (13) by end cap (6).
2. a kind of magnetic liquid dual suspension bearing according to claim/1, it is characterised in that：The bearing block (4) and stator
(16) fit clearance between and between bearing cap (1) and stator (16) is 10 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710534748.3A CN107191488A (en) | 2017-07-03 | 2017-07-03 | A kind of magnetic liquid dual suspension passive bearing journal bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710534748.3A CN107191488A (en) | 2017-07-03 | 2017-07-03 | A kind of magnetic liquid dual suspension passive bearing journal bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107191488A true CN107191488A (en) | 2017-09-22 |
Family
ID=59881223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710534748.3A Pending CN107191488A (en) | 2017-07-03 | 2017-07-03 | A kind of magnetic liquid dual suspension passive bearing journal bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107191488A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050157A (en) * | 2017-11-23 | 2018-05-18 | 燕山大学 | A kind of magnetic liquid dual suspension supports Disjunction type cone bearing |
| CN108050158A (en) * | 2017-11-23 | 2018-05-18 | 燕山大学 | A kind of magnetic liquid dual suspension supports cone bearing |
| CN108612743A (en) * | 2018-07-12 | 2018-10-02 | 燕山大学 | A kind of passive magnetic liquid dual suspension hydrodynamic bearing |
| CN109505865A (en) * | 2018-08-16 | 2019-03-22 | 燕山大学 | A kind of magnetic liquid dual suspension hydrodynamic bearing |
| CN114026343A (en) * | 2019-07-08 | 2022-02-08 | 米巴工业轴承德国有限公司 | Hydraulic sliding bearing |
| CN114483785A (en) * | 2022-02-15 | 2022-05-13 | 大连理工大学 | Large magnetic suspension sliding bearing capable of realizing vibration autonomous control |
| CN114810824A (en) * | 2021-01-29 | 2022-07-29 | 迈格钠磁动力股份有限公司 | Three-degree-of-freedom permanent magnet suspension bearing and regulation and control method thereof |
| CN115560000A (en) * | 2022-11-14 | 2023-01-03 | 冈田精机(常州)有限公司 | Air supporting main shaft assembly and machine tool |
| CN115614386A (en) * | 2022-10-09 | 2023-01-17 | 哈尔滨工业大学 | Small-hole type aerostatic radial bearing shaft sleeve and bearing with high-pressure air cavity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1039339A (en) * | 1973-01-04 | 1978-09-26 | Litton Industries | Lubrication |
| JPH1113760A (en) * | 1997-04-28 | 1999-01-22 | Ntn Corp | Hydrostatic magnetic composite bearing |
| CN1384298A (en) * | 2001-04-30 | 2002-12-11 | 罗喜梅 | Magnetic fluid sealed transmission structure for reciprocating or rotating shaft |
| CN101034825A (en) * | 2006-03-07 | 2007-09-12 | 上海上电电机有限公司 | Electromotor adopting the magnetic floating bearing |
| CN106640966A (en) * | 2017-02-17 | 2017-05-10 | 燕山大学 | Magnetic fluid double suspension driving and driven radial bearing |
-
2017
- 2017-07-03 CN CN201710534748.3A patent/CN107191488A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1039339A (en) * | 1973-01-04 | 1978-09-26 | Litton Industries | Lubrication |
| JPH1113760A (en) * | 1997-04-28 | 1999-01-22 | Ntn Corp | Hydrostatic magnetic composite bearing |
| CN1384298A (en) * | 2001-04-30 | 2002-12-11 | 罗喜梅 | Magnetic fluid sealed transmission structure for reciprocating or rotating shaft |
| CN101034825A (en) * | 2006-03-07 | 2007-09-12 | 上海上电电机有限公司 | Electromotor adopting the magnetic floating bearing |
| CN106640966A (en) * | 2017-02-17 | 2017-05-10 | 燕山大学 | Magnetic fluid double suspension driving and driven radial bearing |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050158A (en) * | 2017-11-23 | 2018-05-18 | 燕山大学 | A kind of magnetic liquid dual suspension supports cone bearing |
| CN108050158B (en) * | 2017-11-23 | 2020-08-14 | 燕山大学 | Magnetic-liquid double-suspension supporting conical bearing |
| CN108050157A (en) * | 2017-11-23 | 2018-05-18 | 燕山大学 | A kind of magnetic liquid dual suspension supports Disjunction type cone bearing |
| CN108612743A (en) * | 2018-07-12 | 2018-10-02 | 燕山大学 | A kind of passive magnetic liquid dual suspension hydrodynamic bearing |
| CN109505865A (en) * | 2018-08-16 | 2019-03-22 | 燕山大学 | A kind of magnetic liquid dual suspension hydrodynamic bearing |
| CN114026343A (en) * | 2019-07-08 | 2022-02-08 | 米巴工业轴承德国有限公司 | Hydraulic sliding bearing |
| CN114026343B (en) * | 2019-07-08 | 2024-05-17 | 米巴工业轴承德国奥斯特罗德有限公司 | Hydrodynamic sliding bearing |
| CN114810824B (en) * | 2021-01-29 | 2024-01-26 | 迈格钠磁动力股份有限公司 | Three-degree-of-freedom permanent magnet suspension bearing and regulating and controlling method thereof |
| CN114810824A (en) * | 2021-01-29 | 2022-07-29 | 迈格钠磁动力股份有限公司 | Three-degree-of-freedom permanent magnet suspension bearing and regulation and control method thereof |
| CN114483785A (en) * | 2022-02-15 | 2022-05-13 | 大连理工大学 | Large magnetic suspension sliding bearing capable of realizing vibration autonomous control |
| CN114483785B (en) * | 2022-02-15 | 2022-10-04 | 大连理工大学 | Large magnetic suspension sliding bearing capable of realizing vibration autonomous control |
| CN115614386A (en) * | 2022-10-09 | 2023-01-17 | 哈尔滨工业大学 | Small-hole type aerostatic radial bearing shaft sleeve and bearing with high-pressure air cavity |
| CN115560000A (en) * | 2022-11-14 | 2023-01-03 | 冈田精机(常州)有限公司 | Air supporting main shaft assembly and machine tool |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170922 |
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| RJ01 | Rejection of invention patent application after publication |