Aerostatic-pressurized radial bearing

A radial bearing, gas static pressure technology, applied in the direction of bearings, shafts and bearings, mechanical equipment, etc., can solve the problems of slow response of porous hydrostatic bearings, unfavorable active control, etc., to achieve accurate and fast response, good bearing capacity and Effects of stability, high load-carrying capacity and stability

Active Publication Date: 2015-03-25
HUNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For porous hydrostatic bearings, since the surface of the porous material is evenly distributed with thousands of small holes, using this material as the surface of the gas hydrostatic bearing will generate a more uniform pressure distribution on

Method used

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  • Aerostatic-pressurized radial bearing
  • Aerostatic-pressurized radial bearing
  • Aerostatic-pressurized radial bearing

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Example Embodiment

[0017] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments. However, it can be understood that the following specific embodiments are only preferred technical solutions of the present invention, and should not be understood as limiting the present invention.

[0018] Such as figure 1 , figure 2 As shown, a gas static pressure radial bearing is mainly composed of a porous cylinder 1, a metal cylinder 2, a radial bearing sleeve 3, a metal sleeve 4 and a displacement sensor 5. The porous cylinder 1 is coaxial Glue on the inner wall of the metal cylinder 2. The porous cylinder 1 and the metal cylinder 2 are arranged symmetrically on both sides of the metal sleeve 4 as a whole. The end faces of the metal cylinder 2 and the metal sleeve 4 are respectively Blind holes 14, 20 are provided, and the blind holes 14, 20 are matched with the cylindrical pin 8. The metal cylinder 2 and the metal sleeve 4 are connected by th...

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Abstract

The invention discloses an aerostatic-pressurized radial bearing. The aerostatic-pressurized radial bearing mainly comprises porous circular tubes, metallic circular tubes, a radial bearing sleeve, a metallic sleeve and displacement sensors, wherein the porous circular tubes are coaxially glued to the internal walls of the metallic circular tubes, integers formed by the porous circular tubes and the metallic circular tubes are symmetrically arranged at the two sides of the metallic sleeve, blind holes are respectively formed in the end faces of the metallic circular tubes and the end face of the metallic sleeve and are matched with cylindrical pins, the metallic circular tubes and the metallic sleeve are connected through cylindrical pins, the radial bearing sleeve coaxially sleeves the outermost layer of the porous circular tubes and the metallic circular tubes, bearing end covers are respectively arranged at the two ends of the radial bearing sleeve, and the displacement sensors are arranged on the side face of the radial bearing sleeve. According to the aerostatic-pressurized radial bearing, relatively high load carrying capacity and static rigidity and good stability are provided, accurate and rapid response can be achieved, and active control can be excellently realized.

Description

technical field [0001] The invention relates to the technical field of air bearings, in particular to an aerostatic radial bearing. Background technique [0002] Gas static pressure bearing is a kind of sliding bearing with gas as lubricant. Its principle is that the fluid forms a thin film under the action of external pressure to support the external load. The pressure film in the bearing has a homogenizing effect, and the bearing has high rotation accuracy, wide speed range, low friction coefficient, low drive power consumption, no crawling at low speed feed, high positioning accuracy, excellent damping characteristics, no friction and wear, and long service life Long and other advantages. However, aerostatic bearings also have many disadvantages, such as: small load, low stiffness, poor stability and so on. [0003] After a period of development, the gas static pressure bearing has greatly improved its load capacity and stiffness. Its main forms are small hole throttlin...

Claims

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Application Information

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IPC IPC(8): F16C32/06
Inventor 冯凯霍彩娇吴声斌程苗苗
Owner HUNAN UNIV
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