YOX500限矩型液力偶合器设计

文档编号:JX765  文档字数:9723.页数:30   附CAD图

 摘要
 液力偶合器是利用液体动能和势能来传递动力的一种液力传动设备。它的实质是离心式水泵与涡轮机的组合。主要由输入轴，输出轴，泵轮，涡轮，外壳，辅助腔及安全保护装置等组成。输入轴一端与动力机相连，另一端与泵轮相连；输出轴一端与涡轮相连，另一端与工作机相连。泵轮与涡轮对称布置，轮内设置一定数量的叶片。外壳与泵轮固定连接成一个密封腔，腔内填充工作液体以传递动力。所配置的易熔塞，易爆塞等保护装置，能保证偶合器在超载的时候不发生事故。限矩型液力偶合器能提高原动机起动能力，平稳地起动大惯量工作机，隔离振动，缓和冲击，防护传动系统动力过载，协调多台原动机间的负荷分配，不能调速和脱离。
 液力偶合器具有如下优点：（1）无级调速。在电动机转速恒定下可以无级调节工作机的转速，与传统的节流调节相比可以大量节省电能。（2）轻载或空载起动电动机和逐步起动大惯量负载，提高异步电机的起动能力。（3）防护动力过载，偶合器的泵轮和涡轮之间没有机械联系，转矩是通过油来传递的，是一种柔性和有滑差的传动。当负载的阻力矩突然增大时，其滑差可以增大甚至制动，电机可继续运转而不致停车。（4）均匀多台电机之间的负载分配。在多台电机驱动同一负载时，允许各台电机的转速稍有差别，使各台电机的负载分配均匀。（5）可隔离振动，缓和冲击。（6）可方便实现离合。偶合器流道充油即接合，将油排空即脱离。（7）除轴承外无磨损件，工件可靠，寿命长。因此，在冶金、发电、矿山、市政工程、化工、运输、纺织和轻工等部门中，得到了广泛的应用。
 

 
关键词：液力  偶合器  限矩型  设计
 
 
 
 
 The Design of YOX500 Constant filling fluid coupling
 Abstract
 The fluid strength coupler is transmits the power using the liquid kinetic energy and the potential energy one kind of fluid drive equipment .Fluid coupling is essentially centrifugal pump and turbine combination. It mainly consists of the input shaft, output shaft, pump wheels, turbine, casings, auxiliary chamber and safety devices, etc. Input shaft connects with the power machine at one end and the other end with the pump wheel; turbine output shaft connects with turbine at one end and the other end connects with the work machine. Pump wheel and turbine layout symmetrical, round to set up a certain number of leaves. Pump wheel and casings fix into a sealed cavity, the cavity fills with liquid in order to transfer driving force for the work. The configuration Cyprus, such as the protection of explosive devices, is to ensure that coupling is not in overload, when the accident occurs. Limits the moment fluid strength coupler to be able to sharpen the prime mover starting capacity, starts the big inertia working machine steadily, the isolation vibration, relaxes the impact, the protection transmission system dynamic overload, is coordinated the load distributions between many prime movers, cannot modulate velocity and be separated from.
 The fluid strength coupler has the following advantage :(1) Stepless speed regulation. In the electric motor rotational speed constant under may the stepless regulation working machine's rotational speed, compares with the traditional throttle adjustment may save the electrical energy massively.  (2)The underloading or the idling starter motor and starts the big inertia load gradually, sharpens asynchronous machine's starting capacity) (3) The protection dynamic overload, between the coupler pump pulley and the turbine wheel does not have the machinery relation, the torque is passes fries in oil transmits, is one kind of flexibility and has the slippery difference transmission. When the load moment of resistance increases suddenly, its slippery difference may increase even applies the brake, the electrical machinery may continue to revolve does not send the parking. (4)Between even many electrical machinery's load sharing. When many motor-driven identical load, allows each electrical machinery's rotational speed to have the difference slightly, causes each electrical machinery's load sharing to be even. (5) May isolate the vibration, relaxes the impact.  (6) May facilitate realizes the meeting and parting. The coupler flow channel oil charge is the joint, namely is separated from the oil evacuation (7) It not have the attrition besides the bearing, the work piece is reliable, the life is long. Therefore, in departments and so on metallurgy, electricity generation, mine, municipal engineering, chemical industry, transportation, spinning and weaving and light industry, obtained the widespread application.

Keywords:  Fluid ，Coupling，Constant filling，Design
 
 
 目 录
中文摘要...........................................................i
英文摘要...........................................................ii
目录................................................................1
  绪论.......................................................3
 1.1  选题背景与意义............................................3
 1.2  国内外液力传动工业的现状及发展............................4
 1.3  研究内容概述..............................................5
 1.4  本章小结..................................................5
第二章  设计任务....................................................6
     2.1  设计题目..................................................6
     2.2  设计要求..................................................7
     2.3  设计方法..................................................7
     2.4  设计思路..................................................8
     2.5  本章小结..................................................9
第三章  液力偶合器的传动原理.......................................10
     3.1液力偶合器的传动原理概述..................................10
     3.2液力偶合器环流力矩的产生及其转速差的关系..................11
     3.3本章小结..................................................12
第四章  限矩型液力偶合器设计.......................................13
     4.1  设计材料的选择...........................................13
     4.2  液力偶合器叶轮工作腔相似设计计算.........................13
     4.3  液力偶合器叶轮强度设计...................................15
     4.4  轴的设计.................................................16
     4.5  液力偶合器轴向力估算及轴承的选取.........................20
     4.6  液力偶合器密封装置选择与设计.............................23
     4.7  液力偶合器易熔塞的选择...................................25
     4.8  本章小结.................................................25
第五章  总结.......................................................26
参考文献...........................................................27
致谢...............................................................28

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