Expansion tightening device for solid rocket engine powder charge and construction method

Abstract

The invention discloses an expansion tightening device for solid rocket engine powder charge and a construction method. The device comprises a plurality of support plates, the support plates are vertically arranged and enclose a circle, gaps are arranged between every two adjacent support plates, the upper portion and the lower portion of the inner wall of each support plate are connected with atleast one support rod correspondingly, the center of the circle enclosed by the support plates is provided with a fixed plate, the fixed plate is horizontally arranged, the center of the fixed plate is vertically provided with a shaft sleeve in a run-through manner, the two ends of the shaft sleeve are symmetrically provided with first connection plates, second connection plates and air cylinders,output rods of the air cylinders are fixed with the shaft sleeve after penetrating through the second connection plates and the first connection plates in sequence, fixed rings are further installedbetween the first connection plates and the second connection plates, one ends of the support rods are connected with the support plates, and the other ends of the support rods are connected to the fixed rings. By means of adoption of the expansion tightening device for the solid rocket engine powder charge, the problems that manual operations are needed after solid rocket engine large-diameter round tank body powder-block partitioned bonding and gas entrapment exists are solved.

Description

technical field [0001] The invention belongs to the technical field of rocket motor charging, and relates to process equipment, in particular to a tensioning device and a construction method for solid rocket motor charging. Background technique [0002] In the past, there are two types of charge in the expansion structure of solid rocket motors, namely the screw expansion device and the taper sleeve expansion device. The screw expansion device is composed of a barrel section and a support plate assembly. Uniformly distributed threaded holes are designed on the barrel section. Manually operate the screw to respectively contact the support plate assembly with the drug column to bond the drug column to the shell; the taper sleeve expansion device mainly It is composed of taper sleeve, fixed plate, moving plate, screw, etc. The taper sleeve has uniform grooves, and the screw rod connects the fixed plate and moving plate, and the expansion and tightening is realized through the t...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a special-shaped silicone rubber composite mandrel structure and its use method, which solves the problems of manual operation and gas trapping after the large-diameter round tank drug blocks of solid rocket motors are bonded in pieces.

Images