Main Catalog Mechanical Engineering and Machine Science Technology and Equipment of Mechanical and Physical Processing

Improvement of the technological process of saw shaft assembly by replacing the key connection with adhesive

Authors: Tarasov D.R.
Published in issue: #1(42)/2020
DOI: 10.18698/2541-8009-2020-1-573
Category: Mechanical Engineering and Machine Science \| Chapter: Technology and Equipment of Mechanical and Physical Processing
Keywords: keyed joints, adhesive joint, adhesive composition, shear strength, curing time, assembly algorithm, joint strength, laboriousness of assembly work
Published: 10.02.2020

The paper considers the possibility of replacing the key with adhesive when assembling the saw shaft, which is part of the low-speed stage of the worm gear and is used to transmit torque to cutting saws. A qualitative assessment of the economic efficiency of the decision was made, as well as an assessment of the method implementation complexity. The calculation is presented of the strength of the adhesive connection necessary for the performance of the service unit and the product as a whole. The adhesive compositions of foreign and domestic manufacturers recommended for the considered type of connection are analyzed. A block diagram has been compiled reflecting the algorithm of the technique for choosing the adhesive composition. Based on the calculations and analysis of the products, the best adhesive composition for the considered case was selected.

References

[1] Vinokurova M.E., Konovalov D.P. Replacing the interference fit with the adhesive joint in the process of gearbox assembly. Glavnyy mekhanik [Chief mechanic engineer], 2018, no. 12, pp. 40–46 (in Russ.).

[2] Mel’nikov G.N., Voronenko V.P. Proektirovanie mekhanosborochnykh tsekhov [Designing of machine-assembly departments]. Moscow, Mashinostroenie Publ., 1990 (in Russ.).

[3] Kondakov A.I. Kursovoe proektirovanie po tekhnologii mashinostroeniya [Course engineering on machine building technology]. Moscow, Knorus Publ., 2012 (in Russ.).

[4] Obshchemashinostroitel’nye normativy vremeni i rezhimov rezaniya dlya normirovaniya rabot, vypolnyaemykh na universal’nykh mnogotselevykh stankakh s chislovym programmnym upravleniem. Ch. 1. Normativy vremeni [General norms in machine engineering of time and cutting regimes for standardization of work, carried out at universal machining centers with numerical program control. P. 1. Standard times]. Moscow, Ekonomika Publ., 1990 (in Russ.).

[5] Uproshchennyy metod naznacheniya vspomogatel’nogo i podgotovitel’no-zaklyuchitel’nogo vremeni [Short method of auxiliary and preparation-finishing time assignment]. prominstrument.rf: website (in Russ.). URL: https://xn--e1aflbecbhjekmek.xn--p1ai/index.php/instrument/57-tvstpz (accessed: 15.09.2019).

[6] Ignatov A.V., Vinokurova M. E. Sposob soedineniya detaley skleivaniem [Bonding of parts]. Patent RF 2652487. Appl. 18.05.2017, publ. 26.04.2018 (in Russ.).

[7] Vinokurova M.E. Sborka reguliruemykh tsilindricheskikh kleevykh soedineniy. Diss. … kand. tekhn. nauk [Assembling of regulated cylindrical bonded joint. Kand. tech. sci. diss.]. Moscow, Bauman MSTU Publ., 2017 (in Russ.).

[8] Ignatov A.V., Vinokurova M.E. Research of the processing method to improve joining quality of adjustable cylindrical adhesive joints. Nauka i obrazovanie: nauchnoe izdanie [Science and Education: Scientific Publication], 2017, no. 6. URL: https://elibrary.ru/download/elibrary_30585838_67569405.pdf (in Russ.).

[9] Website of FGUP “NII polimerov” (in Russ.). URL: http://www.nicp.ru (accessed: 15.09.2019).