FIELD: mechanical engineering. SUBSTANCE: proposed device includes retainer whose spherical end is inserted in ring secured on fire tube and its second flanged end is secured on flange of housing and stack of disk springs with device for pressing this stack. Spherical end of retainer is made in form of collet. Fitted in central hole of retainer is pin whose one taper end rests against taper bevels of collet tabs and other threaded end with nut screwed on it compresses disk spring stack located in sleeve mounted on retainer flange. Springs release tabs of retainer collet by taper end of pin. EFFECT: enhanced reliability; increased service life. 2 dwg
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