A special tool and method for installing nozzles for rotary atomizers

By designing a special nozzle installation tool for rotary atomizers, and utilizing rolling friction and observation hole adjustment, the problem of inaccurate position control between the conical ceramic nozzle and the nozzle bushing was solved, achieving an efficient and stable installation process and extending the nozzle's service life.

CN117101928BActive Publication Date: 2026-07-17BEIJING AEROSPACE PETROCHEM TECH & EQUIP ENG CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING AEROSPACE PETROCHEM TECH & EQUIP ENG CORP LTD
Filing Date
2023-07-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing rotary atomizers, the relative position of the conical ceramic nozzle and the nozzle bushing cannot be accurately controlled, resulting in improper installation and affecting the atomization effect.

Method used

A dedicated nozzle installation tool for rotary atomizers is provided, comprising a spindle, base, upper cover, upper nut, and rolling element. It replaces sliding friction with rolling friction, and utilizes the working characteristics of the rolling element to cause relative rotation between the upper and lower support seats. Combined with the observation hole, the relative position of the conical ceramic nozzle and the nozzle bushing is adjusted in real time to ensure accurate installation.

Benefits of technology

It improves installation efficiency and accuracy, reduces frictional resistance, avoids nozzle damage, ensures stability and uniform force distribution during installation, and extends the service life of the nozzle.

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Abstract

A tool and method for installing nozzles in a rotary atomizer, relating to the field of atomizing equipment, includes a mandrel that passes sequentially through a base, a lower support, a rolling element, an upper support, and an upper nut. The mandrel is connected to the base. The rolling element is installed in the guide grooves of the lower and upper supports to provide rolling friction between them. The upper nut is threaded to the mandrel. A nozzle assembly is installed between the base and the lower support. The nozzle assembly includes a conical ceramic nozzle and a nozzle bushing. By screwing in the upper nut, the conical ceramic nozzle is slowly pressed down within the nozzle bushing to achieve an interference fit. This solves the problem of inaccurate control of the relative position between the conical ceramic nozzle and the nozzle bushing when using a conical interference fit, resulting in improper installation.
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