• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SU1299522A3
    申请号:SU853870306
    申请日:1985-03-12
    公开日:1987-03-23
    发明作者:Кристиан Фремерей Иохан；Веллер Альбрехт
    申请人:Кернфоршунгсанлаге Юлих Гмбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to supports for stabilizing the position of the shaft.
    The aim of the invention is to improve the performance and simplify the design,
    Fig. 1 shows a magnetic support for a rotating shaft; in fig. 2 shows an example of using the proposed magnetic support in a support system with a passive permanently magnetic radial support.
    The magnetic bearing contains a shaft 1 and a housing 2 in which electric coils 3 and 4 are located. The electric sensors 5 of shaft position 1 are connected to electric coils 3 and 4, and thrust disks 7 and 8 are mounted on shaft 1 along its axis with respect to each other with a gap 9. Permanent magnets 10 and 11 with axial magnetization are placed along the cylindrical surfaces of the thrust disks 7 and 8. In the gap 9 between the permanent magnets 10 and 11 and in the housing 2 between the electric coils 3 and 4, a plate 12 of non-magnetisable material with high electrical conductivity is mounted, covering the gap 1 with the gap. The peripheral part 13 of the plate at the housing is made thickened.
    The housing 2 can be made in the form of a cylindrical sleeve of a material with high magnetic conductivity with curved sides 14 and 15 parallel to the shaft 1.
    Magnetic fields generated by the flow of current, by circular electric coils 3 and 4, create an oppositely directed current flow in the coils, an axial force, which, depending on the current direction in the coils, acts axially on the shaft 1 and the thrust disks 7 and 8 ,
    The sensor system 5 produces electrical signals proportional to the deviations of the shaft from its predetermined axial position. The signals of the sensor system 5 are amplified by the regulator 6 and the direction and intensity of the current in coils 3 and 4 are determined. Due to this, the axial force exerted on the thrust discs by means of the coils is controlled by the coils.
    five
    20
    25
    An intense magnetic flux is created between the working surfaces 16 and 17 of the poles of the permanent magnets 10 and 11. The magnetic flux coming out of the surfaces 16 and 17 of the poles penetrates in the flow direction 18 the plate 12 entering inside the gap 9 so that the radial movement of the shaft 1 in the plate 12 is under stress. Thus, the part of the plate 12 located inside the gap 9 represents the voltage source, the magnitude of the induced voltage being proportional to the radial velocity of the moving part of the support.
    The portion of the plate 12 emerging from the gap 9 is not penetrated by a magnetic flux. In this free magnetic field, no electrical voltage is applied. With the aid of this outer part of the plate 12, the voltage source created in the plastic zone inside the gap is short-circuited. The loss of energy associated with the short-circuit current flowing in this way is obtained from the energy of motion of the rotating body and reduces it, and the plate 12 is heated. In order to create in the outer zone of the plate 12 in a space free of a magnetic field, small electrical resistance is possible. The peripheral portion 13 of the plate 12 has a thickening outside the gap 35. Due to this thickening, significant short-circuit currents can be achieved in the plate 12, leading at the same magnitude of induced voltage to a significantly higher damping power compared to the not thickened plates.
    The arrangement of the ring permanent magnets 10 and 11 in series connection leads to optimum efficiency for coils 3 and 4, which correct Bajgta deviations. The magnetic moment of a highly coercive permanently magnetic material is such that it is not harmed by the magnetic fields of the coils 3, 4, nor by the magnetic field penetrating from outside the support element.
    Body 2 of high material
    thirty
    40
    45
    50
    The axial deviation of the shaft 1 from the magnetic conductivity forms the magnetic position measured by the system. The filament screen of the support element, which is my sensors 5. When the setpoint is reached, on the one hand, it protects from the external position, the current no longer flows. perturbing magnetic fields, and, with
    five
    0
    five
    An intense magnetic flux is created between the working surfaces 16 and 17 of the poles of the permanent magnets 10 and 11. The magnetic flux coming out of the surfaces 16 and 17 of the poles penetrates in the flow direction 18 the plate 12 entering inside the gap 9 so that the radial movement of the shaft 1 in the plate 12 is under stress. Thus, the part of the plate 12 located inside the gap 9 represents the voltage source, the magnitude of the induced voltage being proportional to the radial velocity of the moving part of the support.
    The portion of the plate 12 emerging from the gap 9 is not penetrated by a magnetic flux. In this free magnetic field, no electrical voltage is applied. With the aid of this outer part of the plate 12, the voltage source created in the plastic zone inside the gap is short-circuited. The loss of energy associated with the short-circuit current flowing in this way is obtained from the energy of motion of the rotating body and reduces it, and the plate 12 is heated. In order to create in the outer zone of the plate 12 in a space free of a magnetic field, small electrical resistance is possible. The peripheral portion 13 of the plate 12 has a thickening outside the gap 9. Due to this thickening, significant short-circuit currents can be achieved in the plate 12, leading at the same magnitude of induced voltage to a significantly higher damping power compared to the non-thickened plates.
    The arrangement of the ring permanent magnets 10 and 11 in series connection leads to optimum efficiency for coils 3 and 4, which correct Bajgta deviations. The magnetic moment of a highly coercive permanently magnetic material is such that it is not harmed by the magnetic fields of the coils 3, 4, nor by the magnetic field penetrating from outside the support element.
    Body 2 of high material
    0
    0
    45
    50
    On the other hand, it also prevents the disturbing magnetic influence on neighboring devices in the environment of the magnetic support, which arises due to the strong magnetic field of the magnetic support itself.
    A special application of the magnetic support (FIG. 2) shows a passive permanently magnetic support system for the flywheel 19 with two passive permanently magnetic radial supports 20 and 21, having in a known manner permanent magnets 22 and 23 with radially repulsive (radial
    ten
    support flanks 4 and 15 of the support, which are preferably made of iron.
    Radial damping is created using a plate 12 and a non-magnetisable material with good electrical conductivity, mainly copper, permanently installed between the permanent magnets 10 and the support. During radial movements of the support shaft, in areas of the plate 12 penetrated by the magnetic flux, electrical voltages are induced,
    Thus, the magnetic support
    the support 20) or with the axially drawn-5 provides contactless anti-radial support 21) action. In the exemplary embodiment, the permanent magnets 22 are arranged stationary, the permanent magnets 23 form with the shaft 1 and the flywheel 19 as the rotor 20 system a moving part of the support. Such a system of magnetic supports for the rotor system has in its neutral position, t, e, when the acting or centering forces and damping forces are in three axial directions independent of each other (one axial, two radial).
    权利要求:
    Claims (2)
    [1]
    Invention Formula
    1, Magnetic support for stabilizing the position of the shaft containing the shaft
    Visible permanent magnets 23 occupying and housing, in which the symmetrical position relative to stationary permanent magnets 22 is located in the direction of the axis of the shaft 1, is significant axial instability, which leads the rotor system to one or the other from the neutral position. This instability is eliminated by a magnetic support 24, which is controlled by a sensor system of 5 positions with a controller 6 in the same way, 35 OTHER to each other resistant disks, as described (Fig. 1),
    The magnetic support contains a single, toroidally closed, permanently magnetic circuit. The flow passage (FIG. L) is marked by closed lines indicating flow direction 18.
    The regulator provides damping forces that counteract, irrespective of the corresponding axial positions, all axial movements, in particular axial oscillations of the support thrust disks.
    Radial centering thrust
    The discs with respect to the sides 14 and 1550 of the support part are provided with close opposition to the surfaces of the same surface surfaces of the poles of permanent magnets 10 and 11 and magnetized by circular cylindrical surfaces that have permanent magnets with axial magnetization, and a cord mounted between the electric coils placed in the gap between the permanent magnets and covering the shaft with a gap of a layer of non-magnetisable material with high conductivity,
    [2]
    2. Support pop, 1, characterized in that the peripheral part of the plate at the body is made thickened,
    3, Reliance popp, 1i2, otli
    due to the fact that the casing is made in the form of a cylindrical sleeve made of a material with high magnetic permeability with inwardly curved sides parallel to the shaft.
    support flanks 4 and 15 of the support, which are preferably made of iron.
    Radial damping is created using a plate 12 and a non-magnetisable material with good electrical conductivity, mainly copper, permanently installed between the permanent magnets 10 and the support. During radial movements of the support shaft, in areas of the plate 12 penetrated by the magnetic flux, electrical voltages are induced,
    Thus, the magnetic support
    provides non-contact opposing or centering forces and damping forces in three independent axial directions (one axial, two radial).
    Invention Formula
    1, Magnetic support for stabilizing the position of the shaft containing the shaft
    and a housing in which electric coils are located, as well as a shaft position sensor system connected to them, a regulator and permanent magnets, characterized in that, in order to improve performance and simplify the design, it is equipped with at least two along its axis with a gap in relation
    FRIEND to a friend stubborn discs
    chicha
    the cylindrical surfaces of which are permanent magnets with axial magnetization, and a cable mounted in the housing between electric coils placed in the gap between the permanent magnets and the non-magnetisable material with high electrical conductivity surrounding the shaft with the gap,
    2. Support pop, 1, characterized in that the peripheral part of the plate at the body is made thickened,
    3, the Popp support, 1 and 2, is distinguished by the fact that the casing is made in the form of a cylindrical sleeve of a material with high magnetic permeability with inwardly curved sides parallel to the shaft.
    Editor H, Gunko
    as2
    Compiled by Т, Хро1 «va Techred M. Morgenthal
    Order 907/64 Circulation 760
    VNIIPI USSR State Committee.
    for inventions and discoveries 113035, Moscow, Zh-35, .Raushska nab. 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    Corrector. M,. Dem.
    Subscription
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    同族专利:
    公开号 | 公开日
    AT39551T|1989-01-15|
    DK159126C|1991-01-28|
    IE56198B1|1991-05-08|
    US4620752A|1986-11-04|
    DK115485D0|1985-03-13|
    EP0155624B1|1988-12-28|
    DE3567073D1|1989-02-02|
    CA1243066A|1988-10-11|
    JPS60208630A|1985-10-21|
    DE3409047A1|1985-09-19|
    DK159126B|1990-09-03|
    JPH0573925B2|1993-10-15|
    DE3409047C2|1989-02-16|
    IE850634L|1985-09-13|
    DK115485A|1985-09-14|
    EP0155624A1|1985-09-25|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3409047A|DE3409047C2|1984-03-13|1984-03-13|
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