Electric motor with hydrodynamic pressure and magnetic thrust bearings
    1.
    发明授权
    Electric motor with hydrodynamic pressure and magnetic thrust bearings 失效
    具有流体动力压力和电磁推力轴承的电动机

    公开(公告)号:US4538081A

    公开(公告)日:1985-08-27

    申请号:US464148

    申请日:1983-02-07

    摘要: In an electric motor unit, a spindle is rotatably supported by bearing sections of a dynamic-pressure type, and is floated along its axis by a magnetic thrust bearing. At the bearing sections, air current layers are formed in the gaps between journals of the spindle and bearings by elongated parallel grooves formed along the axis, and the spindle is supported by pressure distributed over the air current layers. In the thrust bearing, rotor magnets fixed to the spindle are attracted to stator magnets fixed to the housing and surrounding the rotor magnets. The spindle is floated along the axis by the attraction between the magnets.

    摘要翻译: 在电动机单元中,主轴由动压型的轴承部分可旋转地支撑,并且通过磁性推力轴承沿其轴线浮动。 在轴承部分,通过沿轴线形成的细长的平行槽,在主轴和轴承的轴颈之间的间隙中形成气流层,并且主轴由分布在气流层上的压力支撑。 在推力轴承中,固定在主轴上的转子磁体被固定在壳体上并围绕转子磁体的定子磁体吸引。 主轴通过磁铁之间的吸引力沿轴线浮动。

    Rotating mirror scanner
    2.
    发明授权
    Rotating mirror scanner 失效
    旋转镜扫描仪

    公开(公告)号:US4512626A

    公开(公告)日:1985-04-23

    申请号:US504424

    申请日:1983-06-15

    摘要: In a rotating mirror scanner, a polygonal mirror is fixed between a pair of journals of a spindle. A rotor is fixed on the spindle, and a rotor magnet constituting a magnetic thrust bearing is fixed to one end of the spindle. One bearing of a dynamic pressure type and a ring-shaped stator magnet which constitutes the magnetic thrust bearing are both fixed in a hollow housing having an opening. The spindle is inserted into the housing through the opening thereof so that the outer peripheral surface of the rotor magnet faces the inner peripheral surface of the stator magnet, and that one journal is fitted in the one bearing. Thus, the spindle is set in the housing. A cover having the other bearing is fitted in the opening of the housing so that the other journal is supported by the other bearing.

    摘要翻译: 在旋转镜扫描器中,多面镜固定在主轴的一对轴颈之间。 转子固定在主轴上,构成磁力推力轴承的转子磁体固定在主轴的一端。 构成磁力推力轴承的动压型和环形定子磁体的一个轴承都固定在具有开口的中空壳体中。 主轴通过其开口插入到壳体中,使得转子磁体的外周面面对定子磁体的内周面,并且一个轴颈安装在一个轴承中。 因此,主轴设置在壳体中。 具有另一个轴承的盖子装配在壳体的开口中,使得另一个轴颈由另一个轴承支撑。

    Table equipment
    3.
    发明授权
    Table equipment 失效
    台式设备

    公开(公告)号:US4958815A

    公开(公告)日:1990-09-25

    申请号:US300596

    申请日:1989-01-23

    IPC分类号: B23Q1/00 B23Q1/72 B23Q11/00

    CPC分类号: B23Q11/0017

    摘要: Table equipment which comprises a frame, a table that can fix an object and move relative to the frame, a table guide for guiding the movable table on the frame, in a line inclined to the horizontal plane, a power source for driving the table along the table guide, a power drive connection for drivingly connected the driving power source with the table, and a force applying member applying to the table a force which counterbalances the gravity at the table and the object mounted thereon, the force applying member having a counterweight smaller than the total weight of the movable table and the mounted object.

    X-ray mirror apparatus and method of manufacturing the same
    4.
    发明授权
    X-ray mirror apparatus and method of manufacturing the same 失效
    X射线镜装置及其制造方法

    公开(公告)号:US4940319A

    公开(公告)日:1990-07-10

    申请号:US342793

    申请日:1989-04-25

    IPC分类号: G21K1/02 G21K1/06

    摘要: An X-ray mirror apparatus includes a substantially cylindrical mirror body and a pair of light shielding members provided at both open ends of the mirror body. The inner surface of the mirror body constitutes a reflecting mirror surface having a surface of revolution. Each light shielding member has a light shielding plate arranged at the opened end of the mirror body to block it, and an annular slit allowing passage of X-rays entering onto and reflected on the reflecting mirror surface. A cylindrical fitting member is fixed to the light shielding plate to be coaxial with the slit. The fitting member is fitted on the opened end portion of the mirror body, thereby positioning the light shielding member so that the slit is located coaxial with the axis of the reflecting mirror surface.

    Method and apparatus for finishing an X-ray mirror
    5.
    发明授权
    Method and apparatus for finishing an X-ray mirror 失效
    用于完成X射线镜的方法和装置

    公开(公告)号:US4969725A

    公开(公告)日:1990-11-13

    申请号:US353499

    申请日:1989-05-18

    IPC分类号: G01N23/00 B24C1/08 G21K1/06

    摘要: An apparatus and method for finishing an X-ray mirror, having a substantially cylindrical mirror body and a reflecting mirror surface on the inner surface of the mirror body, includes a support post supporting the mirror body, and a male member which is inserted into an unfinished mirror body. The male member includes a chamber therein, an outer circumferential surface shaped in correspondence with the reflecting mirror surface, and a number of fine holes open to the outer circumferential surface. The male member is supported by a support section so that the outer circumferential surface faces the reflecting mirror surface with a required gap. An abrasive solution containing free abrasive grains is ejected toward the reflecting mirror surface from the outer circumferential surface of the male member through the fine holes, thereby polishing the reflecting mirror surface.