双定子摆动液压马达的设计与研究

发布时间：2018-11-13 08:12

【摘要】：摆动液压马达是液压传动技术中一种重要的执行元件，其性能的好坏直接影响整个系统工作的稳定性和可靠性。现有的摆动液压马达，在输入流量和马达进出油口压差不变的情况下，仅能实现一个定转速和一个定转矩的输出，难以实现转速和转矩的调节。针对这一不足，本文设计了一种可以实现多级转速和多级扭矩输出的双定子摆动液压马达，此摆动液压马达仅通过改变自身的连接方式就可以实现多级转速和多级转矩的输出，不必使用节流阀、减压阀等耗能元件对其输入流量和压力进行调节，降低了能耗，提高了效率。在对现有的几种摆动液压马达进行简要概述的基础上，提出了双定子摆动液压马达的概念，并对其工作原理进行了详细阐述。文中对不同作用数的双定子摆动液压马达的不同连接方式及其输出转速和转矩进行了深入分析和计算，提出了摆动液压马达的差动原理，并对其差动连接方式进行了深入研究。文中还对双定子摆动液压马达不同输出转矩之间的关系进行了探讨，，为摆动马达的设计和选用提供了理论依据。根据双作用双定子摆动液压马达的工作原理，设计了一种典型样机。借助Solidworks三维建模软件建立了样机的三维模型，利用AnsysWorkbench有限元分析软件对摆动液压马达的主要零部件进行了受力分析和优化设计。文中详细分析了双定子摆动液压马达的泄漏面，分别对内外摆动液压马达的泄漏情况进行了详细的分析和计算，并对典型样机的容积效率进行了理论计算。搭建了双定子摆动液压马达的实验测试平台，对典型样机进行了原理性实验和基本的性能实验。实验验证了双定子摆动液压马达工作原理的正确性，为以后双定子摆动液压马达的改进设计提供了实验依据。
[Abstract]:Swing hydraulic motor is an important actuator in hydraulic transmission technology. Its performance directly affects the stability and reliability of the whole system. The current swing hydraulic motor can only realize the output of a constant speed and a constant torque when the input flow rate and the pressure difference between the inlet and outlet of the motor are invariable, so it is difficult to adjust the speed and torque. In order to solve this problem, this paper designs a kind of double stator swing hydraulic motor which can realize the output of multi-stage rotational speed and multi-stage torque. The swinging hydraulic motor can realize the output of multi-stage rotational speed and multi-stage torque only by changing its own connection mode. It is not necessary to use throttle valve, pressure reducing valve and other energy dissipation elements to adjust the input flow and pressure, thus reducing energy consumption and improving efficiency. On the basis of a brief introduction of several kinds of oscillating hydraulic motors, the concept of double stator swing hydraulic motors is put forward, and its working principle is expounded in detail. In this paper, the different connection modes, output speed and torque of the double stator swing hydraulic motor with different action numbers are analyzed and calculated. The differential principle of the oscillating hydraulic motor is put forward, and its differential connection mode is deeply studied. The relationship between the different output torque of the double stator swing hydraulic motor is also discussed, which provides a theoretical basis for the design and selection of the swing motor. According to the working principle of double acting double stator swing hydraulic motor, a typical prototype is designed. The 3D model of the prototype is established with the help of Solidworks 3D modeling software, and the force analysis and optimization design of the main parts of the swing hydraulic motor are carried out by using the AnsysWorkbench finite element analysis software. In this paper, the leakage surface of double stator swing hydraulic motor is analyzed in detail, the leakage situation of internal and external swing hydraulic motor is analyzed and calculated in detail, and the volumetric efficiency of typical prototype is calculated theoretically. The experimental test platform of double stator swing hydraulic motor was built, and the principle and basic performance experiments of typical prototype were carried out. The experiment verifies the correctness of the working principle of the double stator swing hydraulic motor and provides the experimental basis for improving the design of the double stator swing hydraulic motor in the future.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137.51

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