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为提高液黏绞车的工作性能,分别设计了液黏绞车的液黏制动器和盘式制动器液压系统,并采用AMESim软件对其动态特性进行了数值模拟分析。结果表明:系统压力和流量除受蓄能器和橡胶软管的双重影响外,受节流阀开口大小影响较大;采用盘式制动器液压系统后,绞车在启动时的速度波动幅度比仅采用液黏制动器减小近50%,速度和加速度变化较为平缓,仅有一微小冲击。在实际应用中2个系统应协调工作,并且节流阀开口适当调小。该研究成果为液黏绞车的进一步优化设计提供了理论基础。
In order to improve the working performance of the liquid winch, the hydraulic viscous brake and the hydraulic system of the disc brake were designed respectively. The dynamic characteristics of the hydraulic winch were simulated by AMESim software. The results show that the pressure and flow of the system are greatly influenced by the size of the throttle opening except for the double influence of accumulator and rubber hose. After the disc brake hydraulic system is adopted, The viscosity of hydraulic brake is reduced by nearly 50%, the change of speed and acceleration is relatively gentle, with only a slight impact. In practice, the two systems should coordinate the work, and the throttle opening properly adjusted small. The research results provide the theoretical basis for the further optimization design of the liquid winch.