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A flexible hinge ultrasonic bearing

A technology of flexible hinges and bearings, applied in bearings, shafts and bearings, mechanical equipment, etc., can solve the problems that gas extrusion film lubrication is in the laboratory stage, the project has not been applied, and is immature, etc., to achieve non-contact transmission Effect

Inactive Publication Date: 2015-11-18
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the immature method of carrying through the gas extrusion film, the gas extrusion film lubrication is still in the laboratory stage, and has not been applied in engineering.

Method used

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  • A flexible hinge ultrasonic bearing
  • A flexible hinge ultrasonic bearing
  • A flexible hinge ultrasonic bearing

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Embodiment Construction

[0023] Please refer to Figure 1 to Figure 6 As shown, the flexible hinge ultrasonic bearing of the present invention includes: 4 piezoelectric ceramic slots 1 , a round hole 2 , 4 single-arc flexible hinges 3 and 12 double-arc flexible hinges 4 . The flexible hinge ultrasonic bearing of the present invention is in the shape of a cube, and the flexible hinge ultrasonic bearing includes four surfaces extending along the front and rear directions, four piezoelectric ceramic slots 1 are respectively formed on the four surfaces, and the circular holes 2 extend along the front and rear directions , four piezoceramic slots 1 surround the round hole 2, of which the four single-arc flexible hinges are formed by four semi-circular grooves with a diameter of Φ3 evenly distributed along the round hole and the round hole, and 12 double-arc flexible hinges Every three hinges are evenly distributed on the vertical line of the positions of the two single-arc flexible hinges.

[0024] The ra...

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Abstract

The invention provides a flexible hinge ultrasonic bearing. The flexible hinge ultrasonic bearing is cubic, and comprises four surfaces which extend along the forward and backward directions, four single-circular-arc flexible hinges and twelve double-circular-arc flexible hinges, wherein a piezoelectric ceramic slot is formed in each of the four surfaces; a circular hole which extends along the forward and backward directions is formed in the flexible hinge ultrasonic bearing; the four piezoelectric ceramic slots surround the circular hole; the four single-circular-arc flexible hinges are formed through four semicircular grooves which are uniformly distributed along the circular hole, and the circular hole; each three of the twelve double-circular-arc flexible hinges are uniformly distributed on the perpendicular bisector of each two single-circular-arc flexible hinges. According to the flexible hinge ultrasonic bearing, the friction between object surfaces can be alleviated, a small amount of heat is generated, and non-contact transmission can be realized. The flexible hinge ultrasonic bearing can be applied to a light-load gas lubricating occasion.

Description

Technical field: [0001] The invention relates to a flexible hinge ultrasonic bearing, which is applied to a gas extrusion suspension device and belongs to the field of gas lubrication and non-contact transmission. Background technique: [0002] Since the middle of the last century, gas bearing technology has received more and more attention. It uses gas instead of lubricant oil and grease in the traditional sense as a lubricant. It has low heat generation, low wear, no pollution and almost no friction. advantage. Compared with liquid lubricated bearings, gas bearings are more suitable for precision and ultra-precision engineering, micromachining, Fields such as hard disk drive, space technology, medical equipment and nuclear engineering have broader application prospects. [0003] According to the mechanism of lubrication, gas bearings can be divided into: static pressure lubrication type, dynamic pressure lubrication type and extrusion film lubrication type. The gas stat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C32/06
Inventor 马希直郑东桂
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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