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    • 122. 发明授权
    • Aerostatic bearing
    • 空气轴承
    • US3938863A
    • 1976-02-17
    • US509749
    • 1974-09-27
    • Hans R. VictorJurgen Schmidt
    • Hans R. VictorJurgen Schmidt
    • D01H4/12D01H7/12F16C32/06F16C17/16F16C13/02
    • F16C32/0618D01H4/12F16C32/0662F16C32/0696
    • An aerostatic bearing for the shaft of a spinning turbine of an open end spinning unit. The shaft is located in a cylindrically hollow housing to which gas under pressure is supplied to form a radial aerostatic bearing about the shaft. A permeable supporting sleeve is preferably interposed between the housing and the shaft. The shaft is provided with a radial duct and an axial bore opening only toward the rear end of the shaft. A supporting surface is fixed opposite the rear end of the shaft and is spaced therefrom so that the exhausting gaseous media impinges thereon and forms an axial bearing. Preferably, means are provided for resiliently biasing the shaft toward the supporting surface against the action of the axial aerostatic bearing. Such means are preferably magnetic.
    • 用于开口纺纱单元的旋转涡轮机的轴的空气静力轴承。 轴位于圆柱形中空的外壳中,在其中供应压力气体以围绕轴形成径向空气静力轴承。 可渗透的支撑套筒优选地插入在壳体和轴之间。 轴设置有径向管道和仅朝向轴的后端开口的轴向孔。 支撑表面与轴的后端相对固定并与其间隔开,使得排出的气体介质在其上冲击并形成轴向轴承。 优选地,设置用于克服轴向空气静力轴承的作用将轴朝向支撑表面弹性偏置的装置。 这种装置优选是磁性的。
    • 124. 发明授权
    • Friction welding apparatus
    • 摩擦焊接设备
    • US3671049A
    • 1972-06-20
    • US3671049D
    • 1970-10-01
    • NORTH AMERICAN ROCKWELL
    • STAMM ALEX F
    • B23K20/12F16C32/06B23B31/30B23K27/00F16C7/04
    • F16C32/0696B23K20/121Y10T279/12Y10T279/1258
    • A friction welding apparatus is particularly adapted for the friction welding of relatively heavy workpieces, as for example the center section and wheel bearing end spindles of a drive axle housing, and comprises special hydrostatic bearing equipped devices for mounting the rotating workpieces. Each such device is mounted for axial displacement and comprises a rotatable arbor assembly to which the rotatable workpiece, such as a wheel bearing end spindle, is clutched and the arbor assembly is rotatably supported in a housing by two axially spaced hydrostatic journal bearings. Front and rear hydrostatic thrust bearings are provided between the arbor assembly and the housing. Oil under suitable pressure is supplied to both the journal and thrust hydrostatic bearings, and controls are provided for attaining and maintaining suitable fluid pressure levels at these bearings. One aspect of control insures that the workpiece is not secured to the arbor assembly until journal bearing oil pressure reaches a certain level. Oil is forced under high pressure into the bearings through specially arranged passages and after being discharged from the hydrostatic bearings returns to a sump at lowered pressure.
    • 摩擦焊接装置特别适用于相对重的工件的摩擦焊接,例如驱动轴壳体的中心部分和车轮轴承端轴,并且包括用于安装旋转工件的特殊静压轴承装置。 每个这样的装置被安装用于轴向位移,并且包括可旋转的心轴组件,可旋转的工件,例如车轮轴承端心轴,并且心轴组件通过两个轴向间隔开的静压轴颈轴承可旋转地支撑在该壳体上。 前后静液压推力轴承设置在心轴组件和壳体之间。 在适当压力下的油被供应到轴颈和推力静压轴承,并且提供控制以在这些轴承处获得和保持合适的流体压力水平。 控制的一个方面确保工件不固定到心轴组件,直到轴颈轴承油压达到一定水平。 油通过专门布置的通道被迫在高压下进入轴承,并且在从静压轴承排出后,以降低的压力返回到油底壳。