## UG微小闭锁力闭锁器结构设计与分析

Title  The structural design and analysis of the mini locking force latch
Abstract
Locking mechanism is widely used in machinery industry in a variety of products，locking mechanism’s role is to ensure that the Rockets in the gun barrel and precise positioning, not forward or backward sliding. This paper describes the design of a small locking force locking mechanism which will provided greater force in driving rocket and has the ability to withstand overload.When launching ,it can unlock automatically. This paper is intended to propose a new concept that uses gas pressure to open the latch mechanism, establishing  the model and analyze the simulation.
Keywords  Small locking force  Locking device  Gas jet

1  引言    1
1.1研究背景    1

1.2闭锁机构的发展现状及成熟产品    2
1.2.1闭锁栓式闭锁挡弹机构    3
1.2.2卡板式闭锁挡弹机构    4
1.2.3剪销式闭锁挡弹机构    7
1.2.4摩擦式闭锁挡弹机构    8
1.3闭锁力设计计算要旨    8
1.4本设计需要解决问题    9
2  闭锁机构的结构设计    10
2.1 提出燃气流开锁的概念    10
2.2闭锁机构的设计要求与依据    10
2.3 闭锁机构的结构设计    10
2.3.1燃气流开锁碗    10
2.3.2装退弹支撑连杆    11
2.3.3闭锁杆    11
2.3.4外支撑杆    12
2.3.5后盖    12
2.3.6端盖    13
2.3.7弹簧    13
2.4闭锁机构安装过程    14
2.5闭锁机构的装退弹过程    14
2.6闭锁机构运动过程    15
3  闭锁机构零部件尺寸设计与校核    16
3.1 内主力弹簧    16
3.2剪切强度计算    17
4 运动仿真分析    18

1  引言
“闭锁机构”顾名思义，它是一种能够起到闭锁作用的机构。闭锁机构在机械行业的各种产品中应用非常广泛。小到手表、汽车，大到飞机、远洋轮船，毫不夸张的讲，只要是完整的机械结构或产品，就一定会应用到闭锁机构。由此可见，闭锁机构在机械结构中不可或缺的地位。 源￥自%六^^维*论-文+网=www.lwfree.cn

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