CN206874653U - A kind of device based on permanent magnet suspension Yu air supporting composite support - Google Patents

A kind of device based on permanent magnet suspension Yu air supporting composite support Download PDF

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Publication number
CN206874653U
CN206874653U CN201720483881.6U CN201720483881U CN206874653U CN 206874653 U CN206874653 U CN 206874653U CN 201720483881 U CN201720483881 U CN 201720483881U CN 206874653 U CN206874653 U CN 206874653U
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CN
China
Prior art keywords
permanent magnetism
air
aerostatic bearing
bulk
pressure sensor
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Expired - Fee Related
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CN201720483881.6U
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Chinese (zh)
Inventor
龙威
柴辉
杨绍华
裴浩
陈娅君
吴张永
张晓龙
魏镜弢
王庭有
莫子勇
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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Priority to CN201720483881.6U priority Critical patent/CN206874653U/en
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Publication of CN206874653U publication Critical patent/CN206874653U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of device based on permanent magnet suspension Yu air supporting composite support is the utility model is related to, belongs to precise machining equipment technical field.The utility model includes pedestal, shock insulation platform, the part such as permanent magnetism bulk I, permanent magnetism bulk II, industrial aviation aluminium;The permanent magnetism bulk I is positioned on horizontal shock insulation platform, permanent magnetism bulk II is embedded in inside industrial aviation aluminium, industrial aviation aluminium and permanent magnetism bulk II collectively form aerostatic bearing, aerostatic bearing stomata is placed on downwards the center of permanent magnetism bulk I, pressure sensor is placed on above aerostatic bearing, and pressure sensor display instrument is connected into pressure sensor.The utility model is simple to operate, and balance is stable;Requirement of the aerostatic bearing startup stage without mechanical friction can be met by permanent magnet in aerostatic bearing, to reduce fretting wear;Reliability is high and is easily achieved, safe.

Description

A kind of device based on permanent magnet suspension Yu air supporting composite support
Technical field
A kind of device based on permanent magnet suspension Yu air supporting composite support is the utility model is related to, belongs to precise machining equipment skill Art field.
Background technology
Aerostatic bearing has ultralow coefficient of friction and very high kinematic accuracy, to ring using air as lubricant medium The border such as tolerance such as low temperature, high temperature, radiation is stronger, is widely applied in Aero-Space and precision optical machinery, with sky Gas static pressure bearing is in the extensive use of every field, the required precision more and more higher that can reach to it, the air of traditional structure Hydrostatic bearing surface and ultra precise workbench surface directly contact, and materially increase friction during start-up operation Resistance, mechanism can be caused to enter stable state later, so as to influence the overall flexibility of mechanism, while will also result in zero, mechanism The abrasion of part.Secondly as the compressibility of gas is larger, the deficiency of low bearing capacity be present, it is desirable to increase unique side of carrying Formula is exactly to increase supply gas pressure, and the requirement to air compressor is higher.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of device based on permanent magnet suspension Yu air supporting composite support, It can meet requirement of the aerostatic bearing startup stage without mechanical friction by using permanent magnet in composite bearing, be rubbed with reducing Scouring is damaged, and provides a certain proportion of bearing capacity in stable operation stage, reduces the requirement to supplying pressure.In composite bearing Hydrostatic portion improves stabilization sub stage rotor axial rigidity, enhancing resistance to shock loads to make up the defects of permanent-magnet rigidity is small Ability.Shock insulation platform and permanent magnetism bulk reduce error simultaneously, improve precision, ensure result accuracy.
The technical solution adopted in the utility model is:A kind of device based on permanent magnet suspension Yu air supporting composite support, including Pedestal, shock insulation platform 1, permanent magnetism bulk I 2, permanent magnetism bulk II 4, industrial aviation aluminium 3, pressure sensor display instrument 5, pressure sensing Device 6, support 7, cylinder 8, choke valve 9, air inlet pipe 10, pressure-regulating valve 11, pressure gauge 12, air compressor 13;
Described shock insulation platform 1 is placed on pedestal, and permanent magnetism bulk I 2 is positioned on horizontal shock insulation platform 1, permanent magnets Material II 4 is embedded in inside industrial aviation aluminium 3, and industrial aviation aluminium 3 and permanent magnetism bulk II 4 collectively form aerostatic bearing, and air is quiet Last item holds the center that stomata is placed on downwards permanent magnetism bulk I 2, and pressure sensor 6 is placed on above aerostatic bearing, pressure Force snesor display instrument 5 is connected to pressure sensor 6, and air compressor 13 is quiet to cylinder 8 and air respectively by air inlet pipe 10 Last item holds supply, and pressure gauge 12 and pressure-regulating valve 11, air compressor 13 and static air pressure axle are mounted in air inlet pipe 10 Hold and choke valve 9 is additionally provided with the air inlet pipe 10 of connection, choke valve 9 is located at aerostatic bearing front end, and cylinder 8 is fixed on support 7 Surface upper and positioned at aerostatic bearing, the other end of aerostatic bearing air inlet pipe 10 are connected to air compressor 13, Source of the gas is provided by air compressor 13.
Preferably, described choke valve 9 is threaded in the air inlet pipe that air compressor 13 is connected with aerostatic bearing On 10.
Preferably, described permanent magnetism bulk I 2 and permanent magnetism bulk II 4 are by permanent magnetism material powder and as binding agent The composite that ductile material is combined.
Operation principle of the present utility model is:Due to the repulsive force between permanent magnetism bulk I 2 and permanent magnetism bulk II 4, make air Form a certain proportion of air film gap between hydrostatic bearing and permanent magnetism bulk I 2, the gap length can be by changing the pressure of cylinder 9 Power size changes, and the pressure of cylinder 9 can be detected by pressure sensor, available for studying different air-film thickness conditions Under, the stability of space hydrostatic bearing, while requirement of the aerostatic bearing startup stage without mechanical friction can be met, and steady The a certain proportion of bearing capacity of operation phase offer is provided.After air compressor 13 supplies to aerostatic bearing, aerostatic bearing Air film in uniform thickness is formed between permanent magnetism bulk I 2, aerostatic bearing is floated over the top of permanent magnetism bulk I 2, then carries out Steady operation.The composite that permanent magnetism bulk I 2 and permanent magnetism bulk II 4 use because it contains a certain proportion of binding agent, therefore its Magnetic property significantly reduces than the magnetic material of corresponding no binding agent.
In addition to metal composite permanent-magnet material, other composite permanent-magnetic materials by binding agent heat resistance by being limited, temperature in use It is relatively low, it is usually no more than 150 DEG C.But composite permanent-magnetic material dimensional accuracy is high, good mechanical property, magnet each several part performance uniformity It is good, it is easy to carry out that magnet is radial oriented and multipole magnetization.Simultaneously in aerostatic bearing hydrostatic portion making up permanent-magnet The defects of rigidity is small, improve stabilization sub stage rotor axial rigidity, enhancing resistance to shock loads ability.Now supplied to aerostatic bearing Gas, you can be directly entered steady-working state.
Specific formula is as follows:
Permanent magnet magnetic field force calculation formula between permanent magnetism bulk I 2 and permanent magnetism bulk II 4:
Wherein:
The beneficial effects of the utility model are:
1. startup stage, buoyancy was strong, good economy performance, and energy-conservation, security is good, and balance is stable without friction;
2. device technique is succinct, simple operation, reduce into the time for stablizing operation;
3. simple in construction, no fretting wear, rotating speed is high.
4. the permanent magnetism bulk used is answers by permanent magnetism material powder and as what the ductile material of binding agent was combined Condensation material, it is a kind of with wide hysteresis curve, high-coercive force, high remanent magnetism, and the material of constant magnetic can be kept once magnetization.
Brief description of the drawings
Fig. 1 is Integral connection structure figure of the present utility model;
Fig. 2 is the structure chart of aerostatic bearing of the present utility model.
In figure respectively marked as:Shock insulation platform -1, permanent magnetism bulk I -2, permanent magnetism bulk II -4, industrial aviation aluminium -3, pressure pass Sensor display instrument -5, pressure sensor -6, support -7, cylinder -8, choke valve -9, air inlet pipe -10, pressure-regulating valve -11, pressure Table -12, air compressor -13.
Embodiment
With reference to the accompanying drawings and detailed description, the utility model is further detailed.
Embodiment 1:As shown in Figure 1-2, a kind of device based on permanent magnet suspension Yu air supporting composite support, including pedestal, every Shake platform 1, permanent magnetism bulk I 2, permanent magnetism bulk II 4, industrial aviation aluminium 3, pressure sensor display instrument 5, pressure sensor 6, support 7th, cylinder 8, choke valve 9, air inlet pipe 10, pressure-regulating valve 11, pressure gauge 12, air compressor 13;
Described shock insulation platform 1 is placed on pedestal, and permanent magnetism bulk I 2 is positioned on horizontal shock insulation platform 1, permanent magnets Material II 4 is embedded in inside industrial aviation aluminium 3, and industrial aviation aluminium 3 and permanent magnetism bulk II 4 collectively form aerostatic bearing, and air is quiet Last item holds the center that stomata is placed on downwards permanent magnetism bulk I 2, and pressure sensor 6 is placed on above aerostatic bearing, is used In the detection downward pressure applied value of cylinder 8, pressure sensor display instrument 5 is connected to pressure sensor 6, pressure sensor shows Show that instrument 5 is used to show the pressure that pressure sensor 6 detects, air compressor 13 is by air inlet pipe 10 respectively to cylinder 8 and sky Gas static pressure bearing supplies, and is mounted on pressure gauge 12 and pressure-regulating valve 11 in air inlet pipe 10, air compressor 13 and air are quiet Last item holds and choke valve 9 is additionally provided with the air inlet pipe 10 of connection, and choke valve 9 is located at aerostatic bearing front end, and cylinder 8 is fixed on branch On frame 7 and positioned at the surface of aerostatic bearing.
Further, described choke valve 9 is threaded in the air inlet that air compressor 13 is connected with aerostatic bearing It is simple in construction on pipe 10, it is easy for installation.
Further, described permanent magnetism bulk I 2 and permanent magnetism bulk II 4 are by permanent magnetism material powder and as binding agent The composite that is combined of ductile material, it be it is a kind of there is wide hysteresis curve, high-coercive force, high remanent magnetism, once magnetization The material of constant magnetic can be kept.
Due to the repulsive force between permanent magnetism bulk I 2 and permanent magnetism bulk II 4, make aerostatic bearing and permanent magnetism bulk I 2 it Between form a certain proportion of air film gap, the gap length can be changed by changing the size of load, different available for research Under the conditions of air-film thickness, the stability of space hydrostatic bearing, while aerostatic bearing startup stage can be met without mechanical friction Requirement, and provide a certain proportion of bearing capacity in stable operation stage.Permanent magnetism bulk I 2 and permanent magnetism bulk II 4 use compound Material is because it contains a certain proportion of binding agent, therefore its magnetic property is than the corresponding notable drop of magnetic material without binding agent It is low.And the utility model composite permanent-magnetic material dimensional accuracy is high, good mechanical property, magnet each several part performance uniformity is good, is easy to Carry out that magnet is radial oriented and multipole magnetization.Hydrostatic portion in aerostatic bearing simultaneously(The gas that i.e. air compressor 13 flows out Body passes through the pressure of the air inlet hydrostatic bearing of choke valve 9)To make up the defects of conduction magnetic force rigidity is small, the stabilization sub stage is improved Rotor axial rigidity, enhancing resistance to shock loads ability.Now supplied to aerostatic bearing, you can be directly entered steady operation shape State.
Specific embodiment of the present utility model is explained in detail above in association with accompanying drawing, but the utility model is not It is limited to above-mentioned embodiment, in those of ordinary skill in the art's possessed knowledge, this practicality can also be not being departed from Various changes can be made on the premise of new objective.

Claims (3)

  1. A kind of 1. device based on permanent magnet suspension Yu air supporting composite support, it is characterised in that:Including pedestal, shock insulation platform(1), forever Magnetic patch material I(2), permanent magnetism bulk II(4), industrial aviation aluminium(3), pressure sensor display instrument(5), pressure sensor(6), support (7), cylinder(8), choke valve(9), air inlet pipe(10), pressure-regulating valve(11), pressure gauge(12), air compressor(13);
    Described shock insulation platform(1)It is placed on pedestal, permanent magnetism bulk I(2)It is positioned over horizontal shock insulation platform(1)On, permanent magnetism Bulk II(4)Embedded industrial aviation aluminium(3)Inside, industrial aviation aluminium(3)With permanent magnetism bulk II(4)Collectively form static air pressure axle Hold, aerostatic bearing stomata is placed on downwards permanent magnetism bulk I(2)Center, pressure sensor(6)It is quiet to be placed on air Last item holds top, pressure sensor display instrument(5)It is connected to pressure sensor(6), air compressor(13)Pass through air inlet pipe (10)Respectively to cylinder(8)Supplied with aerostatic bearing, air inlet pipe(10)On be mounted on pressure gauge(12)Adjusted with pressure Valve(11), air compressor(13)The air inlet pipe being connected with aerostatic bearing(10)On be additionally provided with choke valve(9), choke valve (9)Positioned at aerostatic bearing front end, cylinder(8)It is fixed on support(7)Surface upper and positioned at aerostatic bearing, air Hydrostatic bearing air inlet pipe(10)The other end be connected to air compressor(13), pass through air compressor(13)Source of the gas is provided.
  2. A kind of 2. device based on permanent magnet suspension Yu air supporting composite support according to claim 1, it is characterised in that:It is described Choke valve(9)It is threaded in air compressor(13)The air inlet pipe being connected with aerostatic bearing(10)On.
  3. A kind of 3. device based on permanent magnet suspension Yu air supporting composite support according to claim 1, it is characterised in that:It is described Permanent magnetism bulk I(2)With permanent magnetism bulk II(4)To be combined by permanent magnetism material powder and as the ductile material of binding agent Composite.
CN201720483881.6U 2017-05-04 2017-05-04 A kind of device based on permanent magnet suspension Yu air supporting composite support Expired - Fee Related CN206874653U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720483881.6U CN206874653U (en) 2017-05-04 2017-05-04 A kind of device based on permanent magnet suspension Yu air supporting composite support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720483881.6U CN206874653U (en) 2017-05-04 2017-05-04 A kind of device based on permanent magnet suspension Yu air supporting composite support

Publications (1)

Publication Number Publication Date
CN206874653U true CN206874653U (en) 2018-01-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112780678A (en) * 2021-01-05 2021-05-11 昆明理工大学 Ultra-smooth air static pressure thrust bearing support system
CN113027931A (en) * 2021-03-25 2021-06-25 南京客棹歌贸易有限公司 Air cushion suspension bearing seat of industrial robot

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112780678A (en) * 2021-01-05 2021-05-11 昆明理工大学 Ultra-smooth air static pressure thrust bearing support system
CN113027931A (en) * 2021-03-25 2021-06-25 南京客棹歌贸易有限公司 Air cushion suspension bearing seat of industrial robot

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180112

Termination date: 20190504