X-ray tube anode target disc fixing structure

By using wave-shaped gaskets and anti-rotation structures in the CT tube, combined with clearance fit and threaded connection, the problem of anode target plate loosening and falling off was solved, improving the stability and safety of the equipment, extending its service life, and maintaining the stability of the high vacuum environment.

CN224020728UActive Publication Date: 2026-03-20RAYMEMO VACUUM TECH WUXI CO LTD
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Patent Information

Application Number
CN202520525176.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-03-20
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

The anode target plate in the CT tube is prone to loosening or falling off during frequent start-ups and shutdowns, affecting the stability and safety of the equipment and posing a potential safety hazard.

Method used

By employing a wave-shaped gasket and an anti-rotation structure, combined with clearance fit and threaded connection, the locking cap presses the anti-loosening gasket to establish a gas discharge channel, prevent the nut from loosening, and achieve directional gas venting in a high vacuum environment.

Benefits of technology

It improves the fixation reliability of the anode target plate, extends the equipment life, eliminates the risk of gas retention, maintains the stability of the high vacuum environment, and reduces the risk of detachment.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to an X-ray tube anode target disc fixing structure which comprises a rotor, and an anode target disc, a fixing nut, an anti-loose gasket and a locking cover are sequentially installed on the rotor. The locking cover tightly presses the anti-loose gasket, so that the anti-loose gasket generates elastic deformation between the fixing nut and the locking cover; the anti-loose gasket is a wave-shaped gasket; an anti-rotation structure is arranged between the rotor and the anode target disc, the anti-loose gasket is provided with 4-6 waveforms and is made of molybdenum alloy or tungsten alloy, and the rotor is in clearance fit with the anode target disc. The utility model has the advantages of high reliability, long service life and low assembly requirement, eliminates the gas retention risk of the internal closed cavity, and realizes the directional dredging of the gas by establishing a communication channel between the cavity and the external high vacuum environment.
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