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Porous ultrasonic bearing

  • US 10,641,329 B2
  • Filed: 05/09/2019
  • Issued: 05/05/2020
  • Est. Priority Date: 07/25/2017
  • Status: Active Grant
First Claim
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1. A porous ultrasonic bearing, comprising:

  • a ring,an outer casing,a bearing bushing, anda vibration collar,wherein the outer casing is sheathed on the bearing bushing;

    the bearing bushing is provided with a group of radial holes that penetrate;

    the vibration collar is arranged between the outer casing and the bearing bushing;

    an outer cylindrical surface of the vibration collar is fixedly connected to an inner hole of the outer casing; and

    a gap is provided between an inner hole of the vibration collar and an outer cylindrical surface of the bearing bushing;

    the vibration collar radially vibrates at high frequency;

    lubricating oil is filled between an inner hole of the bearing bushing and an shaft, in the group of radial holes of the bearing bushing and in the gap between the inner hole of the vibration collar and the outer cylindrical surface of the bearing bushing; and

    a lubricating oil film is formed between the inner hole of the bearing bushing and the shaft under radial high-frequency vibration of the vibration collar, so that friction between the inner hole of the bearing bushing and the shaft is reduced.

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