WO2007066473A1 - 磁気軸受装置 - Google Patents
磁気軸受装置 Download PDFInfo
- Publication number
- WO2007066473A1 WO2007066473A1 PCT/JP2006/322559 JP2006322559W WO2007066473A1 WO 2007066473 A1 WO2007066473 A1 WO 2007066473A1 JP 2006322559 W JP2006322559 W JP 2006322559W WO 2007066473 A1 WO2007066473 A1 WO 2007066473A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electromagnet
- permanent magnet
- magnetic bearing
- bearing device
- yoke
- Prior art date
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 125
- 238000005096 rolling process Methods 0.000 claims description 38
- 238000001816 cooling Methods 0.000 claims description 33
- 230000036316 preload Effects 0.000 claims description 32
- 238000005057 refrigeration Methods 0.000 claims description 25
- 239000002131 composite material Substances 0.000 claims description 23
- 230000005294 ferromagnetic effect Effects 0.000 claims description 4
- 239000003302 ferromagnetic material Substances 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 14
- 230000007774 longterm Effects 0.000 description 13
- 230000007423 decrease Effects 0.000 description 7
- 230000003111 delayed effect Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- F16C39/00—Relieving load on bearings
- F16C39/06—Relieving load on bearings using magnetic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/005—Adaptations for refrigeration plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/051—Axial thrust balancing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/059—Roller bearings
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
-
- 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
- F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
- F16C25/06—Ball or roller bearings
- F16C25/08—Ball or roller bearings self-adjusting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/50—Bearings
- F05D2240/51—Magnetic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/50—Bearings
- F05D2240/51—Magnetic
- F05D2240/515—Electromagnetic
-
- 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
- F16C2362/00—Apparatus for lighting or heating
- F16C2362/52—Compressors of refrigerators, e.g. air-conditioners
Definitions
- the present invention relates to a device that supports one or both of the above, for example, a device used for a tab in a system.
- the 002 cycle system uses air as a source, so it has a lower percentage of energy compared to the case where it is used with a gas such as annealed gas, but it is preferable in terms of environmental protection. Also, in a facility where air can be blown directly into, such as in the case of refrigeration, there is a possibility that the cost can be lowered due to the need, and an air cycle system has been proposed for this purpose ( (For example)
- the peripheral device is a compression tabin or the like.
- tubbin As the tubbin, a tubbin with a pump and a tubbin mounted on a common shaft is used ().
- an optimally designed turbine is required to obtain a high air cooling rate in the deep region.
- a tubbin with the pump and the tub wheel mounted on a common shaft as described above is used.
- This turbine improves the air cycle rate by being able to drive the pump vehicle by the power of the expansion turbine.
- the thruster acts on the main shaft due to the air acting on the pump wheel and the turbine wheel, and the thrust weight is applied to the support that supports the main shaft.
- the rotation speed of the tabbin in the cycle system is 8 to 10 rotations per hour, which is very high compared to the speed of general applications. Therefore, the thrust and durability of supporting the spindle are shortened and the life of the spindle is shortened, and the reliability of the air cycle bin is reduced. It is difficult to use an air cycler without solving this problem of durability.
- a magnetic magnet is provided so as to contact the lunge-shaped thrust plate made of a ferromagnetic material that is vertically coaxial with the main axis without touching it, and the force of the sensor that detects the axial direction is applied. Accordingly, the magnet is controlled by the control.
- the rolling bearing supports the load
- the magnetic bearing supports either one or both of the two
- the electromagnet is a ferromagnetic material provided coaxially with the main axis. It is attached to the dosing so as to oppose the lung-shaped thrust plate without touching it.It has a mechanism to control the electromagnet according to the force of the sensor that detects the axial direction.
- the composite element of and has a relationship that is greater than the negative stiffness of the electromagnet.
- the rolling bearings support the load and the magnetic bearings support either one or both of the above, the bearings can be supported once in the direction of the Aki and can be rolled for a long time. It is possible to secure the property, and avoid the damage when the power is turned off when it is held only by magnetism.
- the relationship is defined to be greater than the negative stiffness of the electromagnetic stone, which is the composite of rolling and rolling, the mechanical stem of the control region is controlled.
- the control target is stable, and stable control can be performed even if the road structure is a simple or proportional structure.
- the electromagnets were set up to satisfy the above two conditions of the two components, by expanding the electromagnets even under the conditions of a suitable load in the high-speed rotation range, the electromagnets of the composite rod formed by rolling and rolling. It is possible to maintain a relationship that is greater than the negative stiffness of. As a result, control.
- the negative stiffness of the electromagnet is set so as to maintain the relationship between the above-mentioned element and the negative stiffness of the electromagnet under a favorable load condition in the high-speed rotation region. It is necessary, but as mentioned above Since the permanent magnet is placed inside to expand the electromagnet, the negative rigidity of the electromagnet can be reduced.
- the permanent magnet is placed inside the electromagnet, so that the force of the electromagnet is reduced and the heat in the magnet can be reduced.
- a permanent magnet is placed inside the magnet, and this stone is opposed to the electromagnet placed inside the magnet. You can also use it together with a magnet that is placed in place and does not contain stones. 4 of this
- an electromagnet having a permanent stone arranged therein and a magnet containing a permanent stone arranged opposite to the magnet are used together. Therefore, it is possible to reduce the force of the magnet within the operating range where the axial load acts most. Therefore, if a permanent stone is placed in the opposite electromagnet, the amount of electricity generated by the electromagnet will be large in order to weaken the attractive force of the stone in the area of the Akia weight, and this will generate heat. It can be resolved.
- the electromagnet in which the stone is placed is placed on the side that supports the excessive weight, and the stone that does not include the stone is placed between the thrust plate and the stone. It may be placed facing the electromagnet placed inside. This is referred to as "5".
- the pump and the turbine wheel have the same function as the above-mentioned in the compression turbine system that drives the pump vehicle by the power generated by the turbine wheel on the same shaft as the thrust. It may be applied. This is referred to as 6 generation.
- a turbine stem to which the above-mentioned device is applied is compressed by a stage with respect to the inflow air, cooled by a heat exchanger, compressed by a turbine pump, cooled by another heat exchanger,
- the thermal expansion due to the tabin of the tabin may be sequentially applied to the system. This is referred to as "7".
- the compressed tubbin system can keep the vehicle sharp and achieve high-speed rotation with the spindle set, which is more durable. As a result, the reliability as the body of the compressed turbine stem, and as a body of the air cycle stem is improved. Also air cycl
- FIG. 3 is a front view of a tab in which the device in the state of the invention is incorporated.
- FIG. 6 is a block diagram showing an example of a module used in the second tab.
- FIG. 3 is a front view of a tab in which the device in the state of 2 of 3 is incorporated.
- FIG. 4 is a front view of a tab in which the device in the state of 3 of 4 is incorporated.
- FIG. 5 shows another example of an electromagnet in a position 3 It is a general view, and () is a general view showing another example.
- FIG. 7 is a front view of a tab in which the device in the state of 4 of 7 is incorporated.
- FIG. 8 is a V V plan view at 87.
- FIG. 9 is a front view of a tab in which the device in the state of 5 of 9 is incorporated.
- FIG. Shows a plan view of Tabint 5 incorporating this state.
- This tab, 5 constitutes a compression tab system, has pump 6 and tab 7, and pump 6a of pump 6 and tab 7a of tab 7 are attached to the end of main shaft 3, respectively. It is. Also, the pump 6a is driven by the power generated by the tab 7a, and no separate drive is provided.
- Pump 6 is a ping 6a facing each other through a small d. It has 6b, and the air taken in from 6c in the center is compressed by pump 6a and discharged as shown in 6d from (z) on the outer circumference.
- the tabin 7 has a tabbing 7b facing each other through a small d2 of the tabin 7, and the air sucked from the outer peripheral portion as shown by 7c is adiabatically expanded by the tabin 7a, and the center portion of the tabin 7a is expanded. Discharge in the direction from 7d.
- the main shaft 3 is 5 6 in number with respect to the radial direction, and the thruster on the main shaft 3 is constituted by the electromagnet 7 that magnetically constitutes.
- This tab 5 includes a sensor 8 that detects the thruster acting on the spindle 3 by the air in the pump 6 and the tab 7, and a controller 9 that controls the electromagnet 7 according to the force of the sensor 8.
- the magnet 7 is installed in the dosing 4 so as to face the surface of the lunge-shaped thrust 3a made of a ferromagnetic material which is provided coaxially with the main shaft 3 in the vertical direction.
- Numeral 546 of 024 3 is a rolling element having an achievable position and, for example, a glazing is used.
- 002 3 3 is a shaft having a large 3b at the center and 3c at both ends.
- the 5 6 on the side has a smaller diameter of 5 "6".
- one of them is related to the step between the large 3b and the small diameter 3c.
- the inner diameter is formed to be close to the main shaft 3, and non-222 is formed in this. In this state, 222 is formed in parallel in multiple directions in the spin dog 4, but other stages are also possible.
- the sensor 8 is stationary on the axis 6 on the side of the tab 7a, It is installed on the window 4 side.
- the sensor 6 provided near the sensor 6 has its 6b fixed in the bearing housing 23.
- the housing 23 is formed in the shape of a ring and has at one end 23a associated with 6b of 6 and is movable in the direction of the inner diameter 24 provided in the housing 4.
- the 23a is provided for Aki.
- the 002 sensor 8 is distributed over the main shaft 3 (for example, 2) and is located between the width surface of the housing 23 on the 23a side and the magnet 7 which is fixed to the housing 4. Also, sensor 8 is
- the sensor 25 is housed in the housing 4 and has 6b 6b facing toward it.
- the sensor 25 serves as the sensor 8 via the outer ring 6b and the housing 23.
- the sensor 25 is composed of, for example, a ore provided at three or more places.
- 5b of 5 is freely movable in the spin dosing 4, and 26 is located between the outer ring 5b and 4 of the dowel.
- the outer ring 5b which is opposed to the main shaft 3 of the inner ring 5a, gives the outer ring 5b.
- the 26 is composed of, for example, a main shaft 3 and the like, which are housed in the spin dosing 4.
- the position de in 003 Tabint 5 can be constructed by a simple Ne system.
- this Neh system has 5 6 and these Sensor 25, 26 housing 23, etc.), and the electromagnet 7 are connected in parallel.
- the composite element composed of 5 6 and these has the property of acting in proportion to the displacement in the opposite direction to the displaced direction, while the Negative rigidity that acts in the direction indicated by the formula is proportional to the displacement.
- ) 3 is used to calculate the number of electromagnet 7 by calculating (if it is proportional) according to tabet 5. It is input to P (if P) 3 through a diode 3 32 to a motor 33 34 which drives a magnet 7 7 in each direction.
- the magnet 7 7 is a pair of magnets 7 facing the thrust 3a shown in, and since it does not act by attracting force, the current is determined by the diode 3 32, and the two electromagnets 7 7 are selectively driven.
- the negative rigidity of the above-mentioned electromagnetic magnet 7 is set as shown in the equation (2), so that the control by the controller 9 is performed. Can be made a stable configuration, and the road configuration of the Trader 9 can be made a simple one, for example, proportionally.
- FIG. Figure 3 shows a view of Tabint 5 that incorporates this state.
- the points common to those states are indicated by the same symbols in the figure.
- the electromagnet d can be widened even under the condition of a suitable load in the high-speed rotation range, so that the above equation (2) can be obtained. Can be maintained. As a result, the control area.
- the effect of the electromagnetic magnet described above is set as shown in the equation (2) described in the first state. Since the electromagnet d is set so as to satisfy the condition of Eq. (5), even if the maximum load acts, the control target by the controller 9 can be made stable and the path of the controller 9 can be controlled.
- the configuration can be simple, for example if it is proportional.
- FIG. Figure 4 shows a view of a tab in 5 that incorporates this state of affairs.
- the points common to those states are indicated by the same symbols in the figure.
- the electromagnet contains a permanent stone, as shown below.
- the light load of 5 6 given by the 25 sensor 26 is preferable.
- the properties of 5 6 become smaller, and the properties of the composite formed by 5 6 5 6 become smaller.
- the negative rigidity of the electromagnet 7 must be maintained in order to keep the relationship between the composite rigidity and the negative rigidity of the electromagnet 7 in (2). It is necessary to do so. Further, in order to reduce the negative rigidity of the electromagnet 7, it is necessary to widen the electromagnet.
- the magnet 7 sandwiching the thrust 3a is placed within 7a of the magnet 7 on the side adjacent to the sensor 8 in order to keep the above equation (2).
- the magnet and the magnet are expanded. It is possible to arrange the magnets 7 on both sides to have two magnets, but it is preferable that only one magnet 7 has a permanent magnet 2 built-in, as in this state.
- the permanent magnet 2 which is a concentric body of the main shaft 3 is arranged within 7a rather than the 7b of the electromagnet 7. B inner diameter than 7b
- the permanent 2 may be placed in the interposition of a 7a like 5 ().
- 004 46 is a graph showing the attractiveness to the consumption power of the electromagnet 7 containing the permanent 2 and the body magnet 7 not containing the permanent 2.
- the attractive force due to the permanent magnet 2 acts, so the force when the maximum load acts is the magnet of the single magnet (grass). Can be smaller than.
- the part indicated by the sign shows the property when 2 is arranged on the surface of the electromagnet 7, and the sign The part shown by shows the property when 2 is arranged in 7a.
- the ratio of the attractive force to the force of the electromagnet 7 (grass) with a built-in permanent magnet 2 is smaller than that of the single magnet 7 (grass), but this is due to the dissociation in part 2.
- the electromagnet 7a in which the permanent 2 is arranged, is provided with a brim for the purpose, for example, the attractive force will drop due to the increase in minutes. It is preferable that the 7a be made flat so that it can be touched in two permanent faces. Furthermore, in order to reduce the effect of magnetic flux, it is preferable to use the projection of 7a that makes permanent two-sided contact. Permanent 2 is preferably worn for Aki, but it is possible to use a different permanent 2 by changing the place where permanent 2 is placed.
- the magnet 7 on one side has a permanent 2 built-in, so that
- the negative rigidity of the electromagnet 7 described above is shown by the equation (2) described above in the description of the second state.
- the maximum weight acted because the setting was made and the permanent 2 was placed inside 7a of the electromagnet 7 to widen the electromagnet. In this case, it is possible to make the control target of the control unit 9 stable and to make the control unit of the control unit 9 simple and proportional.
- the electromagnet 7 with a built-in 004 92 is configured in this way, the field generated at a 7b can be directly added to the permanent 2 so that the permanent 2 can be reduced and the attractive force due to the permanent 2 can be reduced. You can Also, since the permanent 2 is divided into parts, its handling becomes easy.
- the electromagnet on the side of the magnet 7 7 that sandwiches the thrust 3a, and the side that supports the excessive weight (for example, the magnet on the side adjacent to the sensor 8 here).
- the magnet is spread by placing a permanent 2 inside 7a.
- the permanent 2 with a concentric body concentric with the main shaft 3 is arranged within 7a rather than 7b of the electromagnet 7, but it is explained in the state of 4.
- the permanent 2 may be in the form of a rig divided into multiple parts.
- the magnet 7A on the side supporting the excessive weight has a permanent 2 built-in so that the magnet and blade can be expanded to rotate at high speed. Even under the condition of a suitable load in the region, it is possible to keep the above equation (2), which is explained in the above condition, important. That .
- the 0054 which can be configured to have a proportional structure, shows the force in the magnet portion with a light, medium, and heavy load as a bar graph.
- an electromagnet 7 with a built-in 2 is used as a magnet that sandwiches the thrust 3a
- the force in the magnet portion with a light achiac weight, middle, and heavy load is shown by a bar graph.
- 2 is a bar graph showing the force in the magnet part with a small achiac weight, the middle, and the heavy load when using the magnet 7 of the body that does not incorporate 2 as the magnet sandwiching the thrust 3a. .
- the electromagnet 7 containing the permanent 2 as described above and the magnet 7 thrust 3a of the body not containing the permanent 2 are sandwiched, and the magnet 7 7 is also used in the area of the Akia weight. I will do it.
- the magnet 7 without the built-in permanent magnet 2 is the same as the electromagnet 7.
- the ratio of the attractive force to the consumption power can be increased (6 explained in the condition of 4), and thus the force of the magnet 7 7 as a body can be reduced.
- the electromagnet 7 containing the permanent 2 is used in the weighted areas other than the area. This is controlled by the electromagnet 7 7 controller 9.
- the magnet 7 with no built-in 2 is sandwiched between the thrust 3a and the magnet 7 7 is also used in the area of the axial weight, the body with no built-in 2 as the magnet that sandwiches the thrust 3a.
- the force of the magnet 7A 7 in the operating range where the Axia weight acts is compared with the case where the magnet 7 is used (2) and the case where the electromagnet 7 that contains 2 as the magnet sandwiching the thrust 3a is used (). Can be most reduced.
- the turbine 5 incorporating the devices of states 005 to 5 is applied to, for example, a system, and the air serving as a cooling body can be heat-exchanged by a post-stage exchanger (which will be described later with 3). It is used to cool the air that has been compressed by the above and then cooled by the exchanger in the latter stage by adiabatic expansion to a target temperature, for example, a low temperature of 3 C to 6 C by the expansion tab 7. It
- this tab 5 is installed with the tab 6a and the tab 7a mounted on the common 3 and is operated by the power generated by the tab 7a. Since it drives the drive 6a, it does not require a power source, and it is efficient with a compact configuration.
- the pump 6a and the tab 7a are provided to the 3 common to the thrust 3a, and the power generated by the tab 7a is provided to the tab 5 which constitutes the tab 6 stem.
- the high speed rotation of the spindle 3 which was determined by maintaining the d d2 of 6 a 7a was obtained.
- the above thrusters of 5 to 5 are formed by the electromagnet 7 (7 7), it is possible to reduce the thrusters acting on the rolling 5 6 for the spindle 3 while suppressing the large amount of torque by touch.
- the sensor 8 that detects the thrust force acting on the spindle 3 by the air in the pump 6 and the tab 7 and the controller 9 that controls the force by the magnet 7 (77) according to the force of this sensor 8 are used. Because of the provision of the rolling elements, it is possible to use the rolling elements 5 and 6 in an optimal state for thrusters accordingly.
- the sensor 8 since the sensor 8 is arranged in the 6 position, it acts on the problematic 6 position.
- the thruster can be set directly and the thruster can be controlled accurately and precisely.
- This cycle system is a system that cools the frozen air by directly cooling it, and has air from the inlet a to the outlet b of the respective air. This is followed by the following: 2, exchanger 3, pump 6 of air cycler bin 5, exchanger 8 of 2 and heat exchanger 9 between 9 and tabbin 7 of tabint 5.
- the inter-heat exchanger 9 exchanges heat between the air near the intake port a and the cooled air in the same stage in the latter stage, and the heat exchanger 9 near the intake port a. Pass through.
- the 006 32 consists of a etc. and is driven by 2a.
- the heat exchangers 3 and 2 are heat exchangers 3a and 8a, respectively, which perform heat exchange between the heat exchanger 3a and 8a, respectively, and the heat exchanger 3a and 8a.
- the exchanger 3 "8" is connected to the cooling pipes, and the heat exchange heat exchanger is cooled and cooled.
- This system is a system that keeps C at 6 to 6 degrees Celsius, from which air at a pressure of ⁇ 6 degrees Celsius flows into the air inlet a. It should be noted that the following is an example of a temporary drop in pressure.
- the air that has flowed into the inlet a is cooled by the intermediate heat exchanger 9.
- the bundle of permanent stones can be reduced and the attractive force of the permanent stones can be improved.
- the portion that comes into surface contact with the stone arranged inside the electromagnet is flat.
- the portion that makes surface contact with the stone arranged inside the electromagnet is a protrusion.
- the bundle of permanent stones can be reduced, and the attractive force of the permanent stones can be increased.
- the shape of the stone is an integral ring or a ring shape divided in the circumferential direction.
- electromagnet b can be placed. If the stone is in the shape of a halve divided in one direction, it will be easier to handle.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/095,919 US7932656B2 (en) | 2005-12-09 | 2006-11-13 | Magnetic bearing device |
DE112006003310T DE112006003310T5 (de) | 2005-12-09 | 2006-11-13 | Magnetlagervorrichtung |
CN2006800459209A CN101326377B (zh) | 2005-12-09 | 2006-11-13 | 磁轴承装置 |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005355756A JP2007162716A (ja) | 2005-12-09 | 2005-12-09 | 磁気軸受装置 |
JP2005-355756 | 2005-12-09 | ||
JP2005-355757 | 2005-12-09 | ||
JP2005355754A JP2007162714A (ja) | 2005-12-09 | 2005-12-09 | 磁気軸受装置 |
JP2005-355755 | 2005-12-09 | ||
JP2005-355754 | 2005-12-09 | ||
JP2005355757A JP2007162717A (ja) | 2005-12-09 | 2005-12-09 | 磁気軸受装置 |
JP2005355755A JP4942337B2 (ja) | 2005-12-09 | 2005-12-09 | 磁気軸受装置 |
Publications (1)
Publication Number | Publication Date |
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WO2007066473A1 true WO2007066473A1 (ja) | 2007-06-14 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2006/322559 WO2007066473A1 (ja) | 2005-12-09 | 2006-11-13 | 磁気軸受装置 |
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Country | Link |
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US (1) | US7932656B2 (ja) |
DE (1) | DE112006003310T5 (ja) |
WO (1) | WO2007066473A1 (ja) |
Cited By (1)
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CN114397126A (zh) * | 2022-01-15 | 2022-04-26 | 韦忠凯 | 一种应用于伺服电机的驱动机构承载强度检测装置 |
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EP2417370A1 (en) * | 2009-04-07 | 2012-02-15 | Aktiebolaget SKF | Flange assembly |
DE102009022835B3 (de) * | 2009-05-27 | 2011-03-03 | Schaeffler Kg | Verfahren zur Überwachung des Zustands eines Fanglagers einer Maschine |
KR101159054B1 (ko) * | 2010-03-03 | 2012-06-25 | 주식회사 디엔엠 테크놀로지 | 능동형 자기 베어링 |
KR101221781B1 (ko) * | 2010-12-09 | 2013-01-11 | 창원대학교 산학협력단 | 자기베어링 예압 조절장치 |
WO2013109235A2 (en) | 2010-12-30 | 2013-07-25 | Dresser-Rand Company | Method for on-line detection of resistance-to-ground faults in active magnetic bearing systems |
US8994237B2 (en) | 2010-12-30 | 2015-03-31 | Dresser-Rand Company | Method for on-line detection of liquid and potential for the occurrence of resistance to ground faults in active magnetic bearing systems |
WO2012138545A2 (en) | 2011-04-08 | 2012-10-11 | Dresser-Rand Company | Circulating dielectric oil cooling system for canned bearings and canned electronics |
WO2012166236A1 (en) | 2011-05-27 | 2012-12-06 | Dresser-Rand Company | Segmented coast-down bearing for magnetic bearing systems |
US8851756B2 (en) | 2011-06-29 | 2014-10-07 | Dresser-Rand Company | Whirl inhibiting coast-down bearing for magnetic bearing systems |
DE102011080796B4 (de) * | 2011-08-11 | 2023-05-25 | Aktiebolaget Skf | Axial belastbare Lageranordnung |
DE102011080798B4 (de) * | 2011-08-11 | 2014-01-02 | Aktiebolaget Skf | Wälzlageranordnung |
US9255495B2 (en) | 2011-08-24 | 2016-02-09 | Dresser-Rand Company | Magnetically-coupled damper for turbomachinery |
KR101314497B1 (ko) * | 2011-12-15 | 2013-10-07 | 현대위아 주식회사 | 주축용 베어링의 가변 예압장치 |
EP2677640B1 (en) * | 2012-06-22 | 2014-10-01 | Skf Magnetic Mechatronics | Turbocharger embedding an electrical machine with permanent magnets |
EP2677133B1 (en) * | 2012-06-22 | 2014-12-03 | Skf Magnetic Mechatronics | Turbocharger embedding an electrical machine with a dc coil |
WO2018033947A1 (ja) * | 2016-08-18 | 2018-02-22 | ダイキン工業株式会社 | 磁気軸受装置および流体機械システム |
CN109372791A (zh) * | 2018-12-20 | 2019-02-22 | 珠海格力电器股份有限公司 | 一种具有气体轴承的压缩机 |
KR20220131526A (ko) | 2020-02-20 | 2022-09-28 | 댄포스 아/에스 | 원심 냉매 압축기용 축방향 자기 베어링 |
US11835088B2 (en) | 2021-05-28 | 2023-12-05 | Rolls-Royce North American Technologies, Inc. | Thrust bearing for a rotating machine |
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- 2006-11-13 WO PCT/JP2006/322559 patent/WO2007066473A1/ja active Application Filing
- 2006-11-13 DE DE112006003310T patent/DE112006003310T5/de not_active Withdrawn
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114397126A (zh) * | 2022-01-15 | 2022-04-26 | 韦忠凯 | 一种应用于伺服电机的驱动机构承载强度检测装置 |
CN114397126B (zh) * | 2022-01-15 | 2024-01-02 | 深圳市创佳兴电子有限公司 | 一种应用于伺服电机的驱动机构承载强度检测装置 |
Also Published As
Publication number | Publication date |
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US7932656B2 (en) | 2011-04-26 |
DE112006003310T5 (de) | 2008-11-06 |
US20090046963A1 (en) | 2009-02-19 |
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