CN107165937B - A kind of transverse bearing of the dual bearing of electromagnetism-static pressure - Google Patents
A kind of transverse bearing of the dual bearing of electromagnetism-static pressure Download PDFInfo
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- CN107165937B CN107165937B CN201710265591.9A CN201710265591A CN107165937B CN 107165937 B CN107165937 B CN 107165937B CN 201710265591 A CN201710265591 A CN 201710265591A CN 107165937 B CN107165937 B CN 107165937B
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- bearing
- oil
- upper cover
- magnetic pole
- bearing base
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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
- F16C32/0402—Bearings not otherwise provided for using magnetic or electric supporting means combined with other supporting means, e.g. hybrid bearings with both magnetic and fluid supporting means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
A kind of electromagnetism-static pressure dual suspension bearing transverse bearing, THE HYDROSTATIC SUPPORTING SYSTEM includes: armature spindle, bearing base, bearing upper cover and stator.The corresponding stator of outer peripheral surface is equipped in bearing upper cover and bearing base, the stator inner peripheral surface is equipped with the magnetic pole of 8 radial equipartitions, the centripetal free end face circumferential direction arc length of each magnetic pole is greater than the arc length and the centripetal free end face spacing >=enameled wire loop thickness of adjacent two magnetic pole of magnetic pole other parts, a hydrostatic support chamber is respectively set on the centripetal free end face of each magnetic pole, a radial fuel feed hole A is respectively set on end face in the middle part of groove, radial oil return hole A is equipped on matrix between two magnetic poles, the centripetal free end face of 8 magnetic poles is connected by flux sleeve with armature spindle, an enameled wire loop is respectively covered on each magnetic pole of stator, 8 magnetic poles are distributed using NSSNNSSN mode.The present invention can increase considerably the bearing capacity and rigidity of bearing, improve the regulating power and precision of bearing arrangement.
Description
Technical field
The present invention relates to a kind of sliding bearings.
Background technique
Hydrodynamic journal liquid polymers have many advantages, such as that radial rigidity is good, positioning accuracy is high, good anti-vibration, therefore obtain most attention
And extensive use.With the development of global industry, but in high-power, heavily loaded, high-speed cruising occasion, hydrodynamic journal liquid polymers rub
It is very big to wipe power, bearing is easily made to generate larger thermal deformation because temperature is excessively high.So-called magnetic bearing be using magnetic suction and
Repulsion supports the bearing of rotation, is also magnetic suspension bearing.Its advantages are that torque is small, are conducive to revolution at a high speed, can be in vacuum
Middle use, applicable wide temperature range, low noise, service life length, unlubricated caused pollution etc.；The disadvantage is that cost is high, energy is carried
Power is relatively low.
Summary of the invention
Heavy duty can be born the purpose of the present invention is to provide a kind of, the electromagnetism-of big rigidity, high revolving speed, high control precision is quiet
Press dual bearing transverse bearing.The present invention is mainly into one by liquid static-pressure support and electromagnetic suspension supporting combination to rotating shaft
It can be carried out the transverse bearing of magnetic liquid double base.
The invention mainly comprises THE HYDROSTATIC SUPPORTING SYSTEMs and electromagnetic suspension supporting system.The THE HYDROSTATIC SUPPORTING SYSTEM
Specifically include that armature spindle, bearing base, bearing upper cover and stator.Wherein, it is equipped with both ends in the middle part of bearing base top surface and is located at bearing
Semi-cylindrical upper open slot on pedestal two parallel facades, the upper open slot middle section are equipped with intermittent recessed still further below
Strip groove, that is, oil-feed tank A, the interior oil circuit and fuel feed hole D for being equipped with a fuel feed hole B, passing through inside bearing base of each complete slot
It is connected.The groove i.e. oil-recovery tank A that the entirety arranged side by side with oil-feed tank is recessed still further below is additionally provided in the upper open slot middle section.Axis
Submounts are held equipped with screw hole, corresponding with the screw hole on bearing cap, the two is connected by screw.In bearing upper cover bottom surface
Portion is equipped with the semi-cylindrical under shed that both ends corresponding with bearing base upper open slot are located on the parallel facade of bearing upper cover two
Slot, the lower opening slot middle section also are provided with intermittent strip groove recessed and corresponding with bearing base oil-feed tank A upward again
I.e. upper oil-feed tank B, intermediate complete slot is interior to be equipped with a fuel feed hole C.It is additionally provided with oil-feed tank simultaneously in the lower opening slot middle section
The entirety of column is recessed upwards again and groove, that is, oil-recovery tank B corresponding with bearing base oil-recovery tank A, is equipped with oil return hole in the oil-recovery tank
B.A seal channel is respectively set in bearing base oil-feed tank two sides, while respectively setting one and bearing in bearing upper cover oil-feed tank two sides
The corresponding seal channel of pedestal seal channel, respectively set in corresponding two seal channel of bearing base and bearing upper cover one it is O-shaped
Circle.When fuel feed hole C leads to high pressure oil, prevent high pressure oil from axially flowing in stator surface, thus force high pressure oil to oil-feed tank A and
Oil-feed tank B flowing, to reduce axial leakage.The bearing upper cover is connected with bearing base, two semicircle slots composition of the two
One both ends is the cylindrical cavity that opening inside diameter does not wait, and a corresponding annular end cap is respectively set in the opening at both ends, is led to
Screw is crossed to be connected with bearing upper cover and bearing base respectively.Annular is equipped with preferably between end cap and bearing upper cover and bearing base
Reinforced seal.The corresponding stator of outer peripheral surface is equipped in the cylindrical cavity of bearing upper cover and bearing base composition, which has
One hollow cylindrical matrix, inner circumferential surface are equipped with convex block, that is, magnetic pole of 8 radial equipartitions parallel with bus, each magnetic pole
Centripetal free end face be its area of cambered surface be greater than magnetic pole other parts section and the centripetal free end face spacing of adjacent two magnetic pole
>=enameled wire loop thickness (distance between Internal and external cycle), it is i.e. quiet respectively to set a square shape groove on the centripetal free end face of each magnetic pole
Hydraulic support chamber respectively sets a radial through-hole i.e. fuel feed hole A on the end face in the middle part of groove, is equipped on the matrix between two magnetic poles
Radial through-hole, that is, oil return hole A, oil return hole B outside and connector B the phase oil-recovery tank on corresponding with the oil-recovery tank B of bearing upper cover
Even, separately in stator 4, to being additionally provided on the end face between magnetic pole, 4 groups of (preferably every group 3) center lines are parallel with axis stator to be led to
The centripetal free end face of 8 magnetic poles described in hole is connected by flux sleeve with armature spindle, the armature spindle both ends be each passed through end cap with
Reinforced seal is located at outside bearing block.It is preferably disposed in be equipped on the fuel feed hole or oil outlet on bearing base and bearing upper cover and connect
Head.
THE HYDROSTATIC SUPPORTING SYSTEM, hydraulic oil are flowed into from the fuel feed hole C of bearing upper cover, are flowed on stator through oil-feed tank 26
After fuel feed hole A, hydrostatic support chamber is acted on, the oil liquid after effect is after enameled wire loop from the oil return hole A outflow on stator, difference
Oil-recovery tank A, oil-recovery tank B are flowed to, is finally flowed out from oil return hole B, is flowed to by connector B extraneous.And then cooling electromagnetic bearing, it reduces
Temperature rise and thermal deformation.
The electromagnetic suspension supporting system specifically includes that enameled wire loop, the magnetic pole on flux sleeve and stator.It is each in stator
An enameled wire loop is respectively covered on magnetic pole, which there are 2 kinds of canoes, and after energization the magnetic pole in coil can distinguish
For the pole N or the pole S.8 magnetic poles are distributed using NSSNNSSN mode, i.e. adjacent pole is a pair, every centering one for the pole N another
For the pole S, and its two adjacent pole polarity of adjacent two pairs are identical, and each pair of magnetic pole and flux sleeve form flux circuit.
Course of work summary: electromagnetic suspension supporting system is powered, so that magnetic pole is circumferentially distributed in NSSNNSSN；Per adjacent 2
A opposite pole is pole pair, forms magnetic loop with flux sleeve respectively, generates electromagnetic attraction, realizes the electromagnetic suspension support of shaft
It lifts；After hydraulic oil is flowed by fuel feed hole and filled up oil pocket, flowed out from the minim gap of hydrostatic support pad and magnetic conduction inner room, formed compared with
Big pressure generates liquid static-pressure support power, realizes liquid static-pressure support.Electromagnetic suspension and two supporting system of fluid pressure can divide
It is not adjusted and controls, be independent of each other, so as to realize the real-time dual suspension bearing of two system of electromagnetism and static pressure.
The invention has the following advantages over the prior art: above-mentioned magnetic liquid dual suspension bearing support system can collect liquid
The advantage and the whole body of two kinds of supporting systems of static pressure and electromagnetic suspension, can increase considerably the bearing capacity and rigidity of bearing, nothing
It need to be individually equipped with aiding support and circulating cooling system, the design limitation of oil-recovery tank can be released, improve the adjusting of bearing arrangement
Ability and precision.
Detailed description of the invention
Fig. 1 is stereoscopic schematic diagram of the present invention；
Fig. 2 is the stereoscopic schematic diagram of bearing-free upper cover of the present invention；
Fig. 3 is axial cross-sectional views of the present invention；
Fig. 4 is the half-sectional stereoscopic schematic diagram of the present invention；
Fig. 5 is bearing base schematic top plan view of the present invention；
Fig. 6 is bearing upper cover elevational schematic view of the present invention；
Fig. 7 is stator stereoscopic schematic diagram of the present invention；
Wherein: 1, armature spindle, 2, bearing upper cover, 3, screw, 4, bearing base, 5, connector A, 6, end cap, 7, interior hexagonal spiral shell
Nail, 8, connector B, 9, connector C, 10, reinforced seal, 11, screw hole, 12, fuel feed hole D, 13, screw hole, 14, flux sleeve, 15, paint
Envelope curve circle, 16, through-hole, 17, stator, 18, fuel feed hole A, 19, oil return hole A, 20, hydrostatic support chamber, 21, oil-recovery tank A, 22, oil inlet
Slot A, 23, fuel feed hole B, 24, magnetic pole, 25, magnetic pole, 26, oil-feed tank B, 27, fuel feed hole C, 28, screw hole, 29, oil return hole B, 30,
Oil-recovery tank B, 31-36, magnetic pole, 37, seal channel.
Specific embodiment
In Fig. 1, Fig. 2, Fig. 3 and the dual bearing transverse bearing schematic diagram of electromagnetism-static pressure shown in Fig. 4, bearing base 4 is pushed up
Middle face is equipped with both ends and is located at the semi-cylindrical upper open slot on bearing base two parallel facades, the upper open slot middle section
Equipped with it is intermediate be a two sides be half of intermittent recessed strip groove i.e. oil-feed tank A22 still further below, be equipped with one in each slot
A fuel feed hole B23 is connected by bearing base internal oil passages with fuel feed hole D12, and one end which is located at outside pedestal is equipped with
Connector A5.The groove i.e. oil-recovery tank that the entirety arranged side by side with oil-feed tank is recessed still further below is additionally provided in the upper open slot middle section
A21.Screw hole 11 is equipped with above bearing base, corresponding with the screw hole 28 on bearing cap, the two is connected by screw 3, such as
Shown in Fig. 5.Both ends corresponding with bearing base upper open slot are equipped in the middle part of 2 bottom surface of bearing upper cover, and to be located at bearing upper cover two parallel
Semi-cylindrical lower opening slot on facade, the lower opening slot middle section also be provided with it is intermediate be a two sides be half it is intermittent again
Upward strip groove, that is, oil-feed tank B26 recessed and corresponding with bearing base oil-feed tank A, intermediate complete slot are interior equipped with an oil inlet
Hole C27 which is provided with connector C9.Respectively set among both oil-feed tank B of the oil-feed tank A of bearing base and bearing upper cover one it is complete
Oil-feed tank, two sides respectively set half of oil-feed tank, its upper and lower two and half oil-feed tank of the bearing base and bearing upper cover combined
Become two complete oil-feed tanks.It is recessed upwards again that the entirety arranged side by side with upper oil-feed tank is additionally provided in the lower opening slot middle section
And groove corresponding with bearing base oil-recovery tank A, that is, oil-recovery tank B30, the oil-recovery tank is interior to be equipped with oil return hole B29, as shown in Figure 6.?
Bearing base oil-feed tank two sides respectively set a seal channel, while respectively setting one and bearing base in bearing upper cover oil-feed tank two sides
The corresponding seal channel 37 of seal channel respectively sets an O-ring in corresponding two seal channel of bearing base and bearing upper cover.
The bearing upper cover is connected with bearing base, and it is the cylinder that opening inside diameter does not wait that two semicircle slots of the two, which form a both ends,
Chamber respectively sets a corresponding annular end cap 6 in the opening at both ends, passes through the interior hexagonal being located in head bolts hole 13
Screw 7 is connected with bearing upper cover and bearing base respectively.Ring skeleton is equipped between end cap and bearing upper cover and bearing base
Sealing element 10.The corresponding stator 17 of outer peripheral surface is equipped in the cylindrical cavity of bearing upper cover and bearing base composition, such as Fig. 7 institute
Show, which has a hollow cylindrical matrix, and inner circumferential surface is equipped with convex block, that is, magnetic of 8 radial equipartitions parallel with bus
Pole, the centripetal free end face circumferential direction arc length of each magnetic pole be greater than the arc length of magnetic pole other parts and adjacent two magnetic pole to
Heart free end face spacing >=enameled wire loop thickness (distance between Internal and external cycle), respectively sets one on the centripetal free end face of each magnetic pole
Square shape groove, that is, hydrostatic support chamber 20 respectively sets a radial through-hole i.e. fuel feed hole A18 on the end face in the middle part of groove, in two magnetic
Matrix between pole is equipped with radial through-hole, that is, oil return hole A19, corresponding with the oil-recovery tank B30 of bearing upper cover, on the oil-recovery tank
Oil return hole B29 outside be connected with connector B8, separately in stator 4 to being additionally provided with 4 groups of (every group 3) centers on the end face between magnetic pole
The line through-hole 16 parallel with axis stator.The centripetal free end face of 8 magnetic poles is connected by flux sleeve 14 with armature spindle 1,
The armature spindle both ends are each passed through end cap 6 and reinforced seal 10 is located at outside bearing block.
THE HYDROSTATIC SUPPORTING SYSTEM, hydraulic oil are flowed into from the fuel feed hole C27 of bearing upper cover 2, flow into stator through oil-feed tank B26
After fuel feed hole A18 on 17, hydrostatic support chamber 20 is acted on, the oil liquid after effect is after enameled wire loop 16 from returning on stator 17
Oilhole A19 outflow, flows to oil-recovery tank A21, oil-recovery tank B30 respectively, finally flows out from oil return hole B29, is flowed to by connector B8 outer
Boundary.
In the electromagnetic suspension supporting system, an enameled wire loop 15 is respectively covered on each magnetic pole of stator, 8 enameled wires
Circle has 2 kinds of canoes, and it is respectively the pole N or the pole S that the magnetic pole in coil can be made after energization.8 magnetic poles use NSSNNSSN mode
Arrangement, i.e. adjacent pole are a pair, every centering one be the pole N another be the pole S (24,25 be it is a pair of, 31,32 be it is a pair of, 33,
34 be a pair, and 35,36 be a pair), and its two adjacent pole polarity of adjacent two pairs are identical, each pair of magnetic pole and flux sleeve
Form flux circuit.
Claims (7)
1. a kind of dual bearing transverse bearing of electromagnetism-static pressure, it is characterised in that: be equipped with both ends in the middle part of bearing base top surface and be located at axis
The semi-cylindrical upper open slot on pedestal two parallel facades is held, which is recessed still further below equipped with intermittent
Strip groove, that is, oil-feed tank A, be equipped with a fuel feed hole B in each complete slot, pass through oil circuit inside bearing base and oil inlet
Hole D is connected, and is additionally provided with the groove i.e. oil-recovery tank that the entirety arranged side by side with oil-feed tank A is recessed still further below in the upper open slot middle section
A, bearing base are connected with bearing upper cover by screw, and corresponding with bearing base upper open slot two are equipped in the middle part of bearing upper cover bottom surface
The semi-cylindrical lower opening slot being located on bearing upper cover two parallel facades is held, which also is provided with intermittent
Recessed upwards and strip groove i.e. upper oil-feed tank B corresponding with bearing base oil-feed tank A again, be equipped in intermediate complete slot one into
Oilhole C is additionally provided with recessed upwards again with the entirety of upper oil-feed tank side by side and returns with bearing base in the lower opening slot middle section
The corresponding groove of oil groove A, that is, oil-recovery tank B, the oil-recovery tank is interior to be equipped with oil return hole B, and the bearing upper cover is connected with bearing base, and two
It is the cylindrical cavity that opening inside diameter does not wait that two semicircle slots of person, which form a both ends, and one and its are respectively set in the opening at both ends
Corresponding annular end cap is connected, in bearing upper cover and bearing base group respectively with bearing upper cover and bearing base by screw
At cylindrical cavity in be equipped with the corresponding stator of outer peripheral surface, which has a hollow cylindrical matrix, sets in inner circumferential surface
There is the convex block i.e. magnetic pole of 8 radial equipartition parallel with bus, the centripetal free end face of each magnetic pole is that its area of cambered surface is greater than
The section of magnetic pole other parts and the centripetal free end face spacing >=enameled wire loop thickness of adjacent two magnetic pole, in the centripetal of each magnetic pole
A square shape groove i.e. hydrostatic support chamber is respectively set on free end face, and it is logical that a radial direction is respectively set on the end face in the middle part of hydrostatic support chamber
Hole, that is, fuel feed hole A is equipped with radial through-hole, that is, oil return hole A, the oil-recovery tank B with bearing upper cover on the matrix between two magnetic poles
It is corresponding, separately in stator 4 to being additionally provided with 4 groups of center line through-holes parallel with axis stator, 8 magnetic on the end face between magnetic pole
The centripetal free end face of pole is connected by flux sleeve with armature spindle, which is each passed through end cap and reinforced seal is located at
Outside bearing block；An enameled wire loop is respectively covered on each magnetic pole of stator, 8 magnetic poles are distributed using NSSNNSSN mode.
2. the dual bearing transverse bearing of electromagnetism-static pressure according to claim 1, it is characterised in that: NSSNNSSN mode point
Cloth, that is, adjacent pole is a pair, every centering one be the pole N another be the pole S, and its two adjacent magnetic pole pole of adjacent two pairs
Property is identical.
3. the dual bearing transverse bearing of electromagnetism-static pressure according to claim 1, it is characterised in that: 8 enameled wire loops have
2 kinds of canoes, it is respectively the pole N or the pole S that the magnetic pole in coil can be made after energization.
4. the dual bearing transverse bearing of electromagnetism-static pressure according to claim 1, it is characterised in that: in bearing base oil inlet
Slot two sides respectively set a seal channel, at the same bearing upper cover oil-feed tank two sides respectively set one it is corresponding with bearing base seal channel
Seal channel, respectively set an O-ring in corresponding two seal channel of bearing base and bearing upper cover.
5. the dual bearing transverse bearing of electromagnetism-static pressure according to claim 1, it is characterised in that: on end cap and bearing
Ring skeleton is equipped between lid and bearing base to seal.
6. the dual bearing transverse bearing of electromagnetism-static pressure according to claim 1, it is characterised in that: be located at bearing base and
Connector is equipped on fuel feed hole or oil outlet on bearing upper cover.
7. the dual bearing transverse bearing of electromagnetism-static pressure according to claim 1, it is characterised in that: the oil inlet of bearing base
A complete oil-feed tank is respectively set among both oil-feed tank B of slot A and bearing upper cover, two sides respectively set half of oil-feed tank, and combination exists
Its upper and lower two and half oil-feed tank of bearing base and bearing upper cover together becomes two complete oil-feed tanks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265591.9A CN107165937B (en) | 2017-04-21 | 2017-04-21 | A kind of transverse bearing of the dual bearing of electromagnetism-static pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265591.9A CN107165937B (en) | 2017-04-21 | 2017-04-21 | A kind of transverse bearing of the dual bearing of electromagnetism-static pressure |
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| Publication Number | Publication Date |
|---|---|
| CN107165937A CN107165937A (en) | 2017-09-15 |
| CN107165937B true CN107165937B (en) | 2018-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710265591.9A Active CN107165937B (en) | 2017-04-21 | 2017-04-21 | A kind of transverse bearing of the dual bearing of electromagnetism-static pressure |
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| CN108547869B (en) * | 2018-05-18 | 2019-09-10 | 燕山大学 | A kind of magnetic liquid dual suspension bearing support system |
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| CN108760304A (en) * | 2018-06-08 | 2018-11-06 | 燕山大学 | A kind of magnetic liquid dual suspension bearing performance test experiment porch |
| CN108612757B (en) * | 2018-07-13 | 2020-05-12 | 燕山大学 | Active magnetorheological fluid hydrostatic bearing |
| CN108612756B (en) * | 2018-07-13 | 2019-08-23 | 燕山大学 | A kind of adjustable piezoelectric ceramics sealing oil edge hydrodynamic journal liquid polymers |
| CN108612753A (en) * | 2018-07-13 | 2018-10-02 | 燕山大学 | A kind of magnetorheological fluid hydrostatic support mixing magnetic bearing |
| CN109505865B (en) * | 2018-08-16 | 2021-05-28 | 燕山大学 | Magnetic-liquid double-suspension dynamic pressure bearing |
| CN113653759B (en) * | 2021-08-23 | 2022-06-28 | 上海交通大学 | Active and passive vibration reduction supporting device for shafting transverse vibration transmission control |
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| GB982855A (en) * | 1961-06-28 | 1965-02-10 | Ibm | Element supporting apparatus embodying a fluid bearing e.g. in information storage devices |
| NL6702374A (en) * | 1966-03-28 | 1967-09-29 | ||
| CN102705366A (en) * | 2011-03-28 | 2012-10-03 | 何君 | Bearing for air refrigerating machine driven by high-speed motor and the air refrigerating machine |
| CN103062284A (en) * | 2012-12-19 | 2013-04-24 | 哈尔滨工业大学 | Zero-rigidity vibration isolator of double-layer air-flotation orthogonal decoupling and flexible film angle decoupling |
| WO2015032425A1 (en) * | 2013-09-04 | 2015-03-12 | Statoil Petroleum As | Combination gas bearing |
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2017
- 2017-04-21 CN CN201710265591.9A patent/CN107165937B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB982855A (en) * | 1961-06-28 | 1965-02-10 | Ibm | Element supporting apparatus embodying a fluid bearing e.g. in information storage devices |
| NL6702374A (en) * | 1966-03-28 | 1967-09-29 | ||
| CN102705366A (en) * | 2011-03-28 | 2012-10-03 | 何君 | Bearing for air refrigerating machine driven by high-speed motor and the air refrigerating machine |
| CN103062284A (en) * | 2012-12-19 | 2013-04-24 | 哈尔滨工业大学 | Zero-rigidity vibration isolator of double-layer air-flotation orthogonal decoupling and flexible film angle decoupling |
| WO2015032425A1 (en) * | 2013-09-04 | 2015-03-12 | Statoil Petroleum As | Combination gas bearing |
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| CN107165937A (en) | 2017-09-15 |
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