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许多在各种工业领域中使用的液压设备,近年都要求高压、高速和小型化,同时也以造成环境问题的机器噪声等级作为性能评价的指标。特别是对具有回转部分的液压泵-马达,至今都在迫切希望降低噪声。随着最近噪声和振动测试技术的迅速发展,正在改进以前应用的降噪措施,今后的成果指日可待。本文以斜盘式柱塞泵-马达为例,叙述降低噪声所考虑的措施。一、降低柱塞泵的噪声问题 1.产生噪声的机构斜盘式轴向柱塞泵(图1)产生噪声的机构
Many hydraulic equipment used in various industrial fields have required high pressure, high speed and miniaturization in recent years. In addition, the machine noise level that causes environmental problems is taken as an indicator of performance evaluation. Especially for hydraulic pump-motors with swivel parts, there is a strong desire to reduce noise so far. With the recent rapid development of noise and vibration testing technology, noise reduction measures previously applied are being improved and future achievements are just around the corner. In this paper, the swash plate piston pump - motor, for example, describes the noise reduction measures considered. First, reduce the noise of the plunger pump 1. Noise generating mechanism Swash plate type axial piston pump (Figure 1) Noise generating mechanism