Authors: I.I. Voyachek, D.V. Kochetkov, A.A. Groshev

Title of the article: Features of forming contact of parts during assembly of a spiral friction-profile connection

Year: 2024, Issue: 4, Pages: 32-41

Branch of knowledge: 2.5.6. Engineering technology

Index UDK: 621.815

DOI: 10.26730/1999-4125-2024-4-32-41

Abstract: Relevance and goals. Among the fixed connections of parts, the spiral friction-profile connection (SFPJ) has certain advantages, the properties of which have not been sufficiently studied. When ensuring the quality of the SFPJ, which is determined by the contact parameters of the mating surfaces of the parts, it is necessary to consider the joint influence of its design parameters and the processes of processing the mating surfaces and assembly of the joint within the framework of the integrated system of design and technological design. The purpose of the work is to determine the influence of design, technological and operational factors on the contact properties of SFPJ parts. Materials and methods. The determination of the contact parameters of parts in the SFPJ is carried out by an analytical method, taking into account the design and features of the processes of processing parts and assembling the connection. Determination of the contact pressure of the mating surfaces of the SFPJ and the cylindrical interference joint (IFJ) is carried out by modeling using the finite element method. Results and conclusions. The ability to provide the specified functional properties of SFPJ, which are determined by the contact parameters of the parts, is significantly influenced by the process of assembling the joints, as well as the processing technology of the mating surfaces. The most important assembly parameter is the angle of relative rotation of the parts required to form a given level of interference; a method for determining it is proposed. When studying the nominal contact pressure in the SFPJ, it was found that this parameter is close to the contact pressure in a cylindrical IFJ, the design methodology of which can also be used when designing the SFPJ, taking into account its design and technological features.

Key words: spiral friction-profile connection design parameters assembly process contact parameters contact pressure

Receiving date: 16.05.2024

Approval date: 25.07.2024

Publication date: 26.09.2024

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