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A thrust air dynamic pressure bearing

An aerodynamic bearing and thrust technology, which is applied to sliding contact bearings, rotating bearings, bearings, etc., can solve the problem of low bearing capacity of thrust aerodynamic bearings.

Active Publication Date: 2021-10-08
江苏毅合捷汽车科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to address the above problems and provide a thrust air dynamic pressure bearing to solve the problem of low bearing capacity of the existing thrust air dynamic pressure bearing

Method used

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  • A thrust air dynamic pressure bearing
  • A thrust air dynamic pressure bearing
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Embodiment Construction

[0022] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0023] Please refer to figure 1 and figure 2 as shown, figure 1 It is a structural schematic diagram of a thrust aerodynamic pressure bearing of the present invention; figure 2 It is a partially enlarged view of a thrust air dynamic pressure bearing of the present invention.

[0024] In this embodiment, a thrust aerodynamic pressure bearing includes an air bearing surface 2 of the aerodynamic pressure bearing, and a plurality of grid groups 1 are arranged on the air bearing surface 2, and a grid group 1 is arranged between adjacent grid groups 1 The first gap, each grid group 1 includes a plurality of grids 3 uniformly distributed along the circumf...

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Abstract

The invention discloses a thrust air dynamic pressure bearing, which comprises an air bearing surface of the air dynamic pressure bearing, a plurality of grid groups are arranged on the air bearing surface, a first gap is arranged between adjacent grid groups, each grid The grid group includes a plurality of grids uniformly distributed along the circumferential direction, the grids are concave inwards, and the grids are arc-shaped, and the central angle of the defined grids is α, 0°<α≤60°, the same grid Each grid in the grid group has the same width, and a second gap is set between adjacent grids in the same grid group, each grid on the air bearing surface has the same length, and each grid on the air bearing surface The width of the cells gradually increases from the center of the air bearing surface to the outer edge of the air bearing surface. The above-mentioned thrust air dynamic pressure bearing has the characteristics of simple structure and strong bearing capacity.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to a thrust air dynamic pressure bearing. Background technique [0002] With the development of ultra-precision machining and testing technology, the realization of ultra-high-precision rotary motion and linear motion is becoming more and more important. Aerodynamic bearings are widely used in modern ultra-precision machining machine tools and measuring instruments due to their low frictional power consumption, smooth operation, and cleanliness to achieve high-precision rotary and linear motion. [0003] The principle of the air dynamic pressure bearing is that the air with a certain viscosity is brought into the convergence space by the high-speed rotating journal, and a dynamic pressure air film is formed between it and the working surface of the journal, so that the two working surfaces are separated from each other. For journal bearings, the converging space can be formed by t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C17/04
CPCF16C17/045
Inventor 刘全姜开春俞芸萝
Owner 江苏毅合捷汽车科技股份有限公司
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