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齿轮泵的压力脉动问题及应用领域

2018-12-13 11:15:39
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齿轮泵(这里指外啮合齿轮泵)是液压系统中常用的一种泵类元件。其主要结构是由泵体中一对具有相同设计参数的渐开线齿轮相互啮合而构成。具有结构简单、价格便宜、自吸性能好以及对油液污染不敏感等优点,被广泛应用于各类液压传动系统。由于自身结构特点的原因,其输出的流量是随转动轴的转角按抛物线的规律变化。这种变化的流量被称为瞬时流量,而这种输出流量的不均匀现象被称为流量脉动。在常见的液压泵中,齿轮泵输出流量的脉动现象和柱塞泵与叶片泵相比,是比较大的。由于这种现象的存在,在   程度上限制了齿轮泵的应用。

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