B737NG_起落架.ppt

1、0,ATA32 起落架 landing gear,1,概述 Summary,起落架在飞机静止或滑行时起支撑飞机重量的作用 737NG为前三点式的油气减震支柱的起落架。 Landing gear in the static or sliding plane when the role of supporting the weight of 737 ng for tricycle oil and gas shock strut of the landing gear. 空地系统 Clearing system 主起和主起舱门 The Lord and master the doors 前起和前起舱

2、门 Since before the door and before 分系统 subsystem 起落架收放系统 Keep the landing gear system 液压刹车系统 hydraulic brake system 前起转弯系统 Before turning on the system 起落架位置指示警告系统 Landing gear position indicator warning system,2,维护实践 Maintenance practice,起落架安全销的安装 Landing gear safety pin installation 为防止外力将起落架解锁，飞机

3、停放在地面时需安装起落架安全销。 In order to prevent external forces will unlock the landing gear, the plane parked in the ground need to install landing gear safety pin.,3,4,5,空地系统 Clearing system,空地系统介绍 Clearing system is introduced 空地系统主要部件 Space, the main components of the system,6,空地系统介绍 Clearing system is int

4、roduced,空/地系统提供空/地离散信号给飞机各个系统： Empty/to the system to provide the empty/to discrete signal to the plane each system: 起落架转换活门 Landing gear conversion valve 起落架位置指示和警告系统 Landing gear position indicator and warning system 减速板放出指示系统 Reduction plate release indicator system 起飞警告系统 Departure warning syste

5、m 舱门警告系统 Doors warning system 空/地继电器 air/ground relay,7,8,空地系统主要部件 Space, the main components of the system,前起压缩传感器 Before the compression sensor 左主起压缩传感器 Before the compression sensor 右主起压缩传感器 The right main compression sensorPSEU 空/地继电器 air/ground relay PSEU（近地电门电子组件) 故障灯 trouble light,9,主起压缩传感器 T

6、he Lord on compression sensor,简介 每个主起落架上的两个主起压缩传感器为空/地系统提供主起减震支柱的压缩位置信号 Each main landing gear on the two main up compression sensor is empty/to the system to provide the main up shock strut compression position signal 位置 主起压缩传感器位于主起外筒下部区域。靶标位上扭力臂的两侧，并由连杆连接到主起的外筒 The Lord on compression sensor is lo

7、cated in the main the outer barrel lower area. A target on both sides of the torque arm, and the connecting rod connected to the Lord on the outer barrel 工作原理operating principle 当主起落架压缩时，靶标临近传感器 ，信号提供给PSEU When the main landing gear compression, target near sensor, signal provide PSEU PSEU探测到一个传感器失效

8、时，传感器的状态被默认为远离靶标 PSEU detection to a sensor failure, the sensor state was the default is away from the target,10,11,前起落架压缩传感器 Nose gear compression sensor,简介 两个前起的压缩传感器给空/地系统提供前起减震支柱的压缩位置信号 Two former up compression sensor to empty/before the system to provide the shock strut compression position si

9、gnal 位置 前起压缩传感器在上防扭臂的两侧，由连杆连接到前起的外筒。靶标位于前起外筒的下部区域 Before the compression sensor on both sides of the anti twist arm, the connecting rod connected to the front of the outer barrel. The target is located in the bottom of the barrel before the area 工作原理 当前起落架压缩时，靶标临近传感器 ，信号提供给PSEU The landing gear comp

10、ression, target near sensor, signal provide PSEU PSEU探测到一个传感器失效时，传感器的状态被默认为远离靶标 PSEU detection to a sensor failure, the sensor state was the default is away from the target,12,13,空/地继电器 air/ground relay,简介 空/地继电器为飞机系统提供空/地信号 Empty/to relay the airplane for the system to provide the empty/to signal 位

11、置 空地系统1：J22(6) 空地系统2：J20(5),J24(1),14,PSEU,简介 PSEU提供控制信号给六个子系统并且为多个飞机系统提供了空/地信号和离散信号 PSEU provide control signals to the six subsystems and for multiple aircraft system provides the empty/signal and discrete signal 位置 PSEU位于前设备舱 Located on the front PSEU equipment tank,15,16,PSEU 近地电门电子组件,空地离散信号 Spa

12、ce discrete signal 系统从飞机各个系统接收离散信号和传感器的输入并输出空地离散信号给飞机各系统 System from the plane each system to receive discrete signal and sensor input and output space discrete signal to the plane of each system,17,18,PSEU,空/地继电器 air/ground relay 继电器从直流汇流条或者电瓶汇流条获得电源，PSEU输出控制信号控制各个继电器 Relay from dc bus bar or batte

13、ry bar gain power, PSEU output control signal control each relay,19,20,21,PSEU故障灯逻辑 Trouble light logic,简介 PSEU持续监控系统1、系统2的内部和外部故障 PSEU continuous monitoring system 1, system and internal and external fault 维护实践 Maintenance practice 可放行故障 Can release fault 不可放行故障 Shall not release fault,22,23,空地系统工作

14、原理 Clearing system working principle,空/地系统为飞机系统提供空/地数据 Empty/land system for aircraft the system to provide the empty/data PSEU内的两个系统（系统1及系统2）都有各自独立的信号输入，但它们可以通过PSEU共享信息 PSEU within the two system (system 1 and system 2) all have their own independent signal input, but they can through the PSEU shar

15、ing information 每个起落架上的两个压缩传感器输出空/地位置信号到PSEU，PSEU处理来自压缩传感器的信号，动作空/地继电器 On each landing gear two compression sensor output empty/position signal to PSEU, PSEU processing from compression sensor signal, the movement empty/to relay,24,25,起落架,主起落架 main landing gear 前起落架 nose landing gear,26,主起落架,简介 当飞机在

16、地面时主起落架支撑飞机大部分重量并在飞机着陆时吸收冲击力。主起还将刹车力传递给飞机结构 When the plane in the ground main landing gear support aircraft in most of the weight and the landing impact absorption. The Lord will brake force transfer to the plane structure 主起舱门在起落架放下时打开并在起落架收上后关闭以保持飞机在主轮舱处的气动外形 The main port in gear down the open an

17、d closed after gear up to keep the plane in the main wheel tank in pneumatic shape,27,主起落架,减震支柱 shock strut 阻力杆 drag strut 侧撑杆 Side brace 勤务活门 Service valve 游动梁Travelling beam 反作用连杆 Reaction connecting rod,防扭臂 Prevent twisting arm 减摆器 shimmy damper 轮轴 wheel axle 千斤顶座 jack pad assembly 主起舱门 The Lord

18、the door 主起舱门封严 The Lord the door seal,28,29,减震支柱 shock strut,简介 主起减震支柱是油气式减震支柱 The shock strut is the main oil and gas strut 封严 packing off 减震支柱封严为内外筒提供了油气封严 Shock strut densification for inside and outside tube provides oil densification 内筒与外筒间有一个静态封严和一个动态封严 ，两个备用的静态和动态封严 Inner cylinder and the cylind