发明授权
- 专利标题: High rigidity fluid bearing and method for manufacturing the same
- 专利标题(中): 高刚性流体轴承及其制造方法
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申请号: US515329申请日: 1974-10-16
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公开(公告)号: US3945692A公开(公告)日: 1976-03-23
- 发明人: Toshio Tsujiuchi
- 申请人: Toshio Tsujiuchi
- 申请人地址: JA
- 专利权人: Toyoda-Koki Kabushiki Kaisha
- 当前专利权人: Toyoda-Koki Kabushiki Kaisha
- 当前专利权人地址: JA
- 优先权: JA48-122106 19731030
- 主分类号: F16C39/04
- IPC分类号: F16C39/04 ; F16C32/06 ; F16C29/00
摘要:
A high rigidity fluid bearing adapted to rotatably support a rotary shaft on a stationary base and a method for manufacturing the same. The fluid bearing is provided with a bearing bushing which includes a plurality of fluid pockets spaced apart in the circumferential direction, a land portion surrounding the fluid pockets, throttles connected respectively to the fluid pockets, and a raised land formed in each of the fluid pockets. On the bearing bushing, a deformable portion is formed around the raised land. The bearing bushing is urged and fixed to an arbor inserted therein and having a diameter smaller than that of the bore thereof at one end of each raised land so as to form a wedge-shape clearance between the raised land and the arbor. The outer periphery of the bearing bushing fixed to the arbor is machined to a true or proper circle. After removed from the arbor, the bearing bushing is fitted to the stationary base. Each raised land is then arranged so as to protrude toward the outer periphery of the rotary shaft, inserted to the bearing bushing beyond the surface of the land portion to thereby form the wedge-shape clearance to bring a high rigidity to the fluid bearing.
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