比例型多泵多速马达传动系统设计与试验

发布时间：2019-06-13 20:53

【摘要】：为了解决目前广泛应用的液压传动输出特性单一等问题,基于比例型多泵和多速马达提出了比例型多泵多速马达传动理论。在阐述比例型多泵/多速马达结构和工作原理的基础上,设计了2种比例型多泵多速马达传动系统,并对其在不同工作方式下的输出特性进行了理论分析,且进一步探讨了多泵和多速马达排量比例系数对传动系统的影响。通过对比例型多泵多速马达传动系统的输出特性的理论拓展,得到该液压传动系统在不同工作方式下输出转速和转矩的一般公式,并搭建比例型多泵多速马达传动系统试验平台。试验结果表明:比例型多泵多速马达通过切换多泵和多速马达的工作方式,可输出多级定转速和定转矩,且各级转速和转矩与排量比例系数相关。该研究为比例型多泵多速马达传动系统的设计和应用奠定了基础。
[Abstract]:In order to solve the problem of single and other widely used hydraulic transmission characteristics, a proportional multi-pump multi-speed motor transmission theory is proposed based on proportional multi-pump and multi-speed motor. On the basis of describing the structure and working principle of the proportional multi-pump/ multi-speed motor, two proportional multi-pump multi-speed motor transmission systems are designed, and the output characteristics of the multi-pump multi-speed motor are analyzed theoretically. The effect of multi-pump and multi-speed motor displacement ratio on the transmission system is also discussed. By the theory of the output characteristic of the proportional multi-pump multi-speed motor drive system, the general formula of the output speed and the torque of the hydraulic transmission system in different working modes is obtained, and the test platform of the proportional multi-pump multi-speed motor transmission system is set up. The test results show that the proportional multi-pump multi-speed motor can output multi-stage fixed speed and constant torque by switching the operation mode of the multi-pump and the multi-speed motor, and the rotation speed and torque at all levels are related to the displacement ratio coefficient. The research lays a foundation for the design and application of a proportional multi-pump multi-speed motor drive system.
【作者单位】：燕山大学机械工程学院;
【基金】：国家自然科学基金项目(50975246)
【分类号】：TH137.51

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