Method and device for mounting a rotating member

Abstract

A rotating anode is mounted on a shaft of an X-ray tube by means of a ring. The ring allows expansion and reduces the hyperstatic state of the assembly. The ring has the shape of a diabolo, preferably that of a hyperboloid structure generated by revolution. The ring dampens vibration phenomena in a shaft bearing the rotating anode and reduces noise-creating phenomena.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a divisional application of U.S. application Ser. No. 10 / 825,512 filed Apr. 15, 2004, which is hereby incorporated by reference in its entirety, and claims the benefit of a priority under 35 USC 119(a)-(d) to French Patent Application No. 03 50113 filed Apr. 17, 2003, the entire contents of which are hereby incorporate by reference.BACKGROUND OF THE INVENTION [0002] The present invention is directed to a method and a device for mounting a rotating member. In particular, the present invention is directed to a source of radiation and, more particularly the mounting of a rotating anode in an X-ray tube and a method for manufacturing a part of this device. The rotating anode tubes are X-ray emitting tubes used mainly in mammography, although their use can be envisaged in other fields of radiology, especially tomodensitometry. In mammography, the conditions of the examination require the patient to place his or her breast...

AI Technical Summary

Benefits of technology

The invention is about reducing the cost of manufacturing diabolo-shaped rings used in devices such as X-ray tubes. The rings are made in a way that they can be easily re-utilized, which means they can be re-manufactured or re-configured. The method involves making the rings from a cylinder and adding beams to one wall of the ring. The result is a cost-effective way to manufacture these rings. The technical effect of this invention is to reduce the cost of manufacturing diabolo-shaped rings while still maintaining their functionality.

Problems solved by technology

These vibrations are noisy.

Despite all the efforts made to balance this rotating part, there are imbalances that contribute to making the entire tube vibrate.

If the linking of the structures is rigid, such an assembly leads to a hyperstatic condition in the holding of the shaft and, at a mechanical level, it entails breaks that are unacceptable.

The rings used, which generally have a squirrel-cage shape, are elastic but have the drawback of not being reusable.

Indeed, the rings are deformed because they have to be force-fitted when mounted in a structure, before the insertion of a shaft end.

Furthermore, the insertion of the rings themselves requires an exertion of considerable force during assembly.

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