CSD恒速传动装置

1、电气附件修理课程涵盖的签署项目 ELC01：飞机电源系统设备修理 ELC02：电动机修理 ELC03：蓄电池修理 ELC04：机上电器设备修理ELC01：飞机电源系统设备修理 ELC010：电气附件修理公共部分 ELC011：发电机 (GEN)修理 ELC012：恒速传动装置：恒速传动装置 (CSD)修理修理 ELC013：静变流机 (STA. INV.)修理 ELC014：电源控制组件(GCU、BPCU)修理 ELC015：接触器 (GCB)修理 ELC015：变压整流器(TRU)修理 ELC016：电源控制面板 (ELC. MLD.)修理恒速传动装置（CSD）修理 CSD概述功用与构造工作

2、原理传动方式分组件功用 CSD维修分解、清洗、检查、修理、测试 施工安全及防护CSD功用 CSD功用：把变化的发动机转速，转变为恒定的转速，驱动交流发电机，从而保证发电机输出恒频交流电。CSD安装位置（737-300）CSD基本构造 基本结构（737-300，ATA 24-11）：轴向差速器（承载轴、游星齿轮&环形齿轮）液压组件（泵&马达）调速器（离心飞重&控制活门）滑油系统保护装置CSD基本构造轴向差速器承载轴承载轴(黄色黄色)：传动发动机转速；固定环形齿轮固定环形齿轮(蓝色蓝色)：调节1号行星齿轮转速，后者驱动2号行星齿轮；2号行星齿轮号行星齿轮(条纹条纹)：驱动输

3、出环形齿轮;输出环形齿轮输出环形齿轮(红色红色)：驱动输出齿轮。速比速比(输出环形齿轮：承载轴)2：1CSD基本构造液压组件可变液压组件可变液压组件为9缸轴向变量柱塞泵，液压泵打油量决定了液压马达转速，高低压力油流向决定了液压马达的转向。固定液压组件固定液压组件为9缸轴向定量柱塞泵，其转速和转向决定了差速器“固定环形齿轮”的转速和转向。液压马达输出扭矩M=Cm*(Pg-Pd)*tgm，即大小决定于压差，方向决定于压力油流向液压泵打油量Qp=Cp*np*tgp,即决定于斜盘倾角和转速CSD基本构造调速器u敏感CSD输出转速，通过作动筒连杆，控制液压组件可变斜盘的偏转倾角u速度上升离心飞重拨杆的力

4、增加分配活门下移大腔通回油作动筒连杆收回u调整螺钉调节转速（拧紧升高；拧松下降）u电调线圈精确调节转速（频率），用于精频电子设备，或并联供电时均衡有功负载CSD基本构造滑油系统u齿轮润滑；u散热；u液压组件传力介质CSD基本构造保护装置CSD故障(如超速、超温、低压)时，脱开CSD与发动机的连接。737 CSD工作原理CSD传动方式增速传动输入轴欠速可变斜盘左偏液压组件输出轴与承载轴同向差速器固定环形齿轮与承载轴反向游星齿轮加速输出轴加速CSD传动方式减速传动输入轴超速可变斜盘右偏液压组件输出轴与承载轴反向差速器固定环形齿轮与承载轴同向游星齿轮减速输出轴减速CSD传动方式总结 分部件传动方式输

5、入轴转速可变斜盘位置可变液压组件固定液压组件液压机构液压机构输出齿轮输出齿轮转向输入环形输入环形齿轮齿轮转向游星齿游星齿轮轮转速输出轴转速增速5719 rpm右偏马达泵与承载轴反向与承载轴同向减速减速直通=5719 rpm0-静止静止维持维持CSD分组件的功用 调速器：敏感CSD输出转速，控制液压组件可变斜盘的偏转倾角 液压组件： 根据可变斜盘倾角，调整“固定环形齿轮” 的转向和转速，进而调节游星齿轮转速 差速器：承载轴传递发动机转速；游星齿轮调节输出齿轮的转速 滑油系统：齿轮润滑、散热；液压组件传力介质 保护装置：CSD故障时报警，或脱离发动机CSD分组件的功用 滑油系统全姿态油箱涡流室：分

6、离回油中的空气。含气滑油旋转-滑油沿内壁流入油箱下腔，空气从中央导管排到油箱上腔。CSD分组件的功用 滑油系统压差指示器：指示滑油滤堵塞。堵塞时内腔油压升高，油滤旁通。同时磁性柱塞左移，指示按钮失去吸力而弹出。CSD分组件的功用 保护装置脱开机构:功用：CSD故障时，脱开CSD与发动机的连接。原理：驾驶舱按钮-电磁阀柱塞缩入-卡爪衔接输入轴-输入轴继续旋转-犬牙脱开-两轴分离。复位：地面，拉出手柄，电磁阀柱塞伸入卡爪凹槽。CSD的分解(HS CMM 24-11-75) 分解外部零件CAUTION: DO NOT PULL HARNESS WIRES TO FREE CONNECTORS. CS

7、D整体分解NOTE: Rotate the governor adjustment screw fully clockwise (see Figure 106) before splitting the transmission to prevent interference with the housing.CSD的分解 分解输入组件(IPL FIG1103)WARNING: COVER IS SPRING-LOADED. USE CARE WHEN REMOVING TO PREVENT PERSONAL INJURY.NOTE: Screws (26) are secured with

8、Loctite and will require extra effort to break loose.Do not remove sight glass components (57 through 63) unless damaged or leakage is suspected.Using a torch, apply heat evenly to the housing around the perimeter of the sight glass (62), using care not to overheat the housing. Apply even heat until

9、 sight glass falls out. If necessary, use a nylon-pointed tool to aid in removal of the sight glass.CSD的分解 分解输出组件(IPL FIG1104)CAUTION: USE CARE WHEN REMOVING CARBON JOURNAL BEARINGS （51）. THE BEARINGS ARE BRITTLE AND CHIP OR CRACK EASILY. A DAMAGED BEARING MAY HAVE TO BE REPLACED. PROTECT BEARINGS F

10、ROM DAMAGE AFTER DISASSEMBLY.CSD的检查 Visually check the condition of the magnetic chip detector plug (2, Figure 1101) according to Figure 302. CSD的检查 Perform dynamic solenoid test as follows:Make visual check of solenoid (20, Figure 1103) and connector (21).Push down and release solenoid plunger seve

11、ral times to check return spring and plunger sleeve for free movement.Put solenoid in vee block of test fixture 6SV-92071 (see Figure 303).Add weights necessary to apply 12 pounds side load to solenoid plunger.Apply 17 volts direct current to the solenoid. An acceptable solenoid will actuate and all

12、ow the weight to fall.CSD的检查CSD的检查 Perform an X-ray or borescope check of the swirl chamber (14, Figure 1104) if blockage is suspected. If blockage cannot be removed, discard the swirl chamber.CSD的修理Repair NotesNote 51: Input stationary seal (33, Figure 1101) may be repaired according to Figure 402.

13、Note 52: Input seal mating ring (34, Figure 1101) may be repaired according to Figure 403.Note 53: Output stationary seal (43, Figure 1101) may be repaired according to Figure 404.Note 54: Output seal mating ring (44, Figure 1101) may be repaired according to Figure 405.Note 55: Seal retainer assemb

14、ly (27, Figure 1101) may be repaired according to Figure 406.Note 56: Bearing liner (44, Figure 1103) may be replaced according to Figure 407.Note 57: Disconnect solenoid electrical connector (21, Figure 1103) may be replaced accordingto Figure 408.CSD的修理 Seal retainer assembly (27, Figure 1101) may

15、 be repaired according to Figure 406.CSD组装 Output Shaft and Clutch Assembly RelationshipCSD组装 Route the governor trim lead through loop clamps (28, Figure 1104) and throughthe hole in the side of the output housing. Install screws (26 and 27). Form a loop in the excess lead and position it against t

16、he scavenge pump (refer to Figure 511A). Be sure loop clamp is positioned as shown in Figure 511A.CSD组装 Thread connector guide 6SV-91684 onto the lead of solenoid (20) to guide the lead through its locating hole in the side of the input housing. Thread guide tool AKS-10450 into the solenoid to facilitate installation and bottom the solenoid in its cavity in the input housing (s