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本文以齿泵实际工作中的各泄漏途径所产生的压力降为基础,建立了齿轮泵径向压力分布规律的数学模型。并通过实验验证,说明齿轮泵径向压力分布受齿轮与壳体的偏心量的大小及方向、端面间隙大小的影响。齿轮泵是一种应用广泛的油泵。对于高压齿轮泵,其轴向力和径向力是结构设计中的重要参数。它们的大小和作用位置与齿轮泵径向压力分布规律密切相关,这一点对径向力是非常清楚的。而对于轴向力来说,由于齿轮泵的侧板上受压面积中与齿形及齿槽所对应的部分上的压力,就等于齿槽中径向压力。这部分面积占总受压面积的60％以上,而这个力占整个轴向力的70％以上。剩余的部分也与径向压力成一定的函数关系。因此,木文想从理论和实验两个方面对齿轮泵的径向压力分布规律及其影响因素进行一些探讨。
In this paper, based on the pressure drop caused by each leak path in practical work of toothpump, a mathematical model of radial pressure distribution of gear pump is established. The experimental verification shows that the radial pressure distribution of the gear pump is affected by the size and direction of the eccentric amount of the gear and the housing and the gap size of the end face. Gear pump is a widely used pump. For high-pressure gear pumps, the axial force and radial force are important parameters in structural design. Their size and role of position and gear pump radial pressure distribution is closely related to the radial force is very clear. For axial forces, however, the radial pressure in the tooth gap is equal to the pressure on the part of the pressure receiving area on the side plate of the gear pump that corresponds to the tooth profile and tooth space. This part of the area accounted for more than 60% of the total pressure area, and this force accounted for more than 70% of the entire axial force. The remaining part is also a function of radial pressure. Therefore, Mu Wen wanted to discuss the law of radial pressure distribution of gear pump and its influencing factors from two aspects of theory and experiment.