《4WG-200型变速箱用于轮式装载机传动件技术指导资料》由会员分享，可在线阅读，更多相关《4WG-200型变速箱用于轮式装载机传动件技术指导资料（22页珍藏版）》请在金锄头文库上搜索。
1、第一节用途和主要技参数SECTION I Application and Specifications1 用途:l. AppIication:中州采埃孚机械有限公司生产的4WG200型变速箱用于轮式装载机的传动件。Liuzhou ZF Machinery Co.,Ltd is a manufacturer of the 4WG-200 transmission .The products are suitable for drive-line parts of Wheel loaders2主要技术参数（常规型4WG200, 4644 024 146）:2.Specification（ Stan
2、dard model 4WG200, 4644 024 146）:最大输入功率：200KWEngine Power Max: 200KW重量：（不含油）约470KgMasse without oil about 470Kg变矩器型号：W340Torque Converter version: W340变矩器壳体与柴油机壳体连接：SAE2Converter connection with the engine: SAE2变矩器起动变矩比：2.25Converter starting torque ratio: 2.25变速箱档位：4进3退Speed: 4 forward and 3 revers
3、e传动比：Transmission ratios:刖I 档 1st speed4.278进2 档 2nd speed2.368档3 档 3rd speed1.126Forward4 档 4th speed0.648倒1 档 1 st speed4.278退2 档 2nd speed2.368档3 档 3rd speed1.126Reverse3 取力a：3Power take-off:最多能有两个直接从发动机获得动力来驱动油泵的取力口。There are maximally two engine-dependent power take-offs for hydraulic pumps 第一取
4、力口：1 st Power take-off:法兰 SAE C-2/4-LFlange: SAE C-2/4-L花键：SAE-C/12/24 DP/14ZSpline: SAE-C/12/24 DP/14Z第二取力口：2nd Power take-off:法兰：SAE C-2/4-LOCHFlange: SAE C-2/4-LOCH花键：SAE-C/12/24 DP/14ZSpline: SAE-C/12/24 DP/14Z4变速箱输出：4.Output of transmission:前法兰（带手闸）：D=180*8XM14X 1.5X45Forward flange with the em
5、ergency and parking brake:D=180*8XM14X 1.5X45后法兰：D=15O*8XM12X 1.5X35Reverse flange : D= 150*8XMl2X 1.5X35第二节变晁器的结构与原理SECTION II Structure and principle of torque converter1 简介l. Description:4WG-200型变速箱由液力变矩器和多速动力换档变速箱组成。The ZF-Hydraulic transmission 4WG-200 is composed of a hydrodynamic torque conve
6、rter and rear-mounted multi-speed powershift reversing transmission.2变矩器的特点2 General of Torque Converter带有ZF液力变矩器的车辆，具有许多优点：The vehicle equipped with the ZF converter has following advantages:变矩器可以自动调节输出的转速和扭矩，使车辆根据路面状况和阻力大小自动改变速度 和牵引力的大小以适应工况的变化。 The Torque Converter can automatically change the ou
7、tput torque and speed of the transmission to meet the requirements of the vehicle at various road conditions and operating modes.该变矩器高效区宽、效率高，可充分利用发动机功率，获得更好的经济性。 The Torque Converter has high efficiency and wide range, so the engine can be operated more effectively and this results in good economy.
8、采用了以油为介质的液力传动，对车辆起到了缓冲、减振作用，提高了车辆的舒适性。 Since power is transmitted by hydraulic oil, reducing shock to the vehicle and it is more comfortable for operation.3 工作原理3 Operation principle变矩器由泵轮、涡轮、导轮组成。这三个轮子组成了一个液体流动循环的空间，ZF变速泵 不断地将油液冲入变矩器。因而变矩器才能起到它的作用，也即将发动机传来的扭矩增大， 同时变矩器产生的热量被循环油带走。The torque converte
9、r is composed of 3 main parts: impeller wheel . turbine wheek stator.These three impellers are arranged in such a ring-shaped system that the fluid passes through them in the above-indicated sequence. The ZF converter pump is constantly pressing pressure oil through the converte匚 This way, the conve
10、rter is able to accomplish its task, i.e. to multiply the torque of the engine. In the same time, the heat created in the converter will be absorbed by the escaping oil. 液流在从泵轮流入涡轮的同时，流动的方向和冲力的大小也被改变，涡轮力矩即输岀力矩的 大小根据负载的大小决定。液流紧接着从涡轮流入导轮，又一次改变流动方向后再流入泵轮, 导轮受到冲击力后，对液流有一个反作用力。The oil escaping from the i
11、mpeller wheel enters into the turbine wheel，where the direction of the fluid is reversed. According to the reversing moment, the turbine wheel, and with it also the output shaft, will receive a more or less high reaction moment. The stator (reaction member), following the turbine wheel, has the task
12、 to redirect again the oil, which is streaming out of the turbine, and to direct it in the correct direction into the pump wheel, the stator receives a reaction moment due to this reversing motion.涡轮扭矩与泵轮扭矩之比称作变矩比。变矩比的大小随泵轮与涡轮转速差的增加而增加，因 此，最大扭矩比在涡轮不转时发生，但是，随着输出转速的增加变矩比会降低。The relation between the tu
13、rbine moment/pump moment is called torque conversion. The conversion is increasing in correspondence with the speed difference between pump wheel and turbine wheel. Therefore, the maximal conversion takes place when the turbine wheel is stops, with increasing output speed the torque conversion is de
14、creasing.当涡轮转速为泵轮转速的80%时，变矩比为lo即涡轮扭矩等于泵轮扭矩。变矩器在此时起 到液力偶合器的作用。At the turbine speed of about 80% of the pump speed, the conversion becomes 1.0, i.e. the turbine moment is equal to that of the pump moment. The torque converter is that acting similar to a fluid clutch.工作原理见图：Fig. Operation principle of
15、torque converter:5 Turbine wheel1 Pump wheel2 from the engineTpTt10 to the gearboxu3 Starling condition11 nT=()vehicle stopped6 Reaction member (stator)7 Tp = Torque of the pump wheel8 Tt = Torque of the turbine wheel9Tr = Torque of the reaction member (stator)4 Intermediatecondition12 nT n engine14 condition shortly before the converter clutch is closed13nT0,8 n engine turbine winccl is running with about the same speed as oumo wheel1 Pump wheel =泵轮2. from the engine =自发动机3. Starting condition =起步工况4. Intermediate condit
