摘要本毕业设计旨在进行105毫米火炮同心反后座装置设计，通过对反后座装置的设计，完成对火炮核心部件——反后座装置的训练目的。本课题参考现有105毫米火炮的内弹道参数，先进行参数计算，根据参数计算结果，进一步完成复进机的设计和计算。这两步均为助退机设计形成铺垫。本文中的复进机采用弹簧式复进机，而助退机采用沟槽式助退机。应用的是变深度凹槽形成的流液孔，周围环绕对称的若干弹簧。形成同心式结构。68544

这种同心式反后座装置因为它的轴线与炮膛轴线重合，可有效的消除射击时动力偶的影响，使火炮的总体布置紧凑。炮塔高度可降低，有利于减轻火炮质量。

关键词：火炮、同心式、反后座装置。

毕业设计说明书（论文）外文摘要

Title    Design of concentric type recoil system          

Abstract

his graduation design is aimed at 105 mm gun concentric recoil system design, through the design of recoil system, complete the training of the gun core component——recoil system.

This task refer to the interior ballistic parameters of 105 mm gun. The first is parameter calculation. According to the results of parameter calculation, Further complete the design and calculation of the counterrecoil mechanism. These two steps are bedding for the design of recoil brake. The counterrecoil mechanism in this article is spring counterrecoil mechanism, and the recoil brake is groove type recoil brake. Use variable depth groove to form discharge hole. Around it are numbers of spring. Form the concentric type structure.

The concentric type recoil system can effectively eliminate the influence of dynamic coupling when shooting because of its axis is coincide with bore axis，so the overall layout of artillery is compact. Turret height is lower, is helpful to reduce quality of artillery

Keyword：artillery、concentric、recoil system

目录

1 绪论 1

1.1   引言 1

1.2   本课题的研究背景 1

1.3   国内外研究现状 2

2 总体设计 3

2.1   同心式结构设计 3

2.2   弹簧式复进机设计 4

2.3   助退机结构设计 5

3 7

尺寸计算以及强度校核 7

3.1   内弹道参数计算 7

3.2   后坐制动图及选择理由 9

3.2.1   后坐制动图的选择原则 9

3.2.2后坐制动图的绘制 10

3.3   复进机结构设计计算 11

3.3.1   复进机力变化规律 11

3.3.2   确定Pfo和m的原则 11

3.3.3弹簧结构尺寸的确定 12

3.3.4复进制动的校核 13

3.4   助退机结构设计计算 14