内啮合齿轮泵的优化设计分析

摘要内啮合齿轮泵是一种可以输送液体的正向位移泵，它因其结构简单、工作可靠等优点而在各个行业得到广泛应用。本文针对内啮合齿轮泵的结构参数进行了优化设计分析，旨在提高其性能和效率。首先利用Solidworks三维软件对内啮合齿轮泵进行三维建模，并进行了优化设计。其次对内啮合齿轮泵进行结构以及受力分析。分析结果表明出油槽的宽度深度以及出油口的锥度影响泵体的受力情况，通过对内齿圈外表面油膜厚度进行计算得出本设计的油膜厚度大于许用最小油膜厚度，故本设计符合使用要求。有限元软件分析内啮合齿轮泵，着重考察出油槽、内齿圈和螺栓等部分。出油槽在泵体中扮演重要角色，其结构和壁面面积对泵性能有影响，可优化设计并降低噪音、能耗。内齿圈和螺栓分析可提高泵的耐久性和可靠性。出油槽结构复杂，其中圆角半径的大小影响着出油口与出油槽壁面的连接，通过对出油槽进行有限元分析发现，当出油槽与两壁面之间连接处无圆角时对出油口的影响是最小的。内齿圈出油口大小和螺栓孔直径等设计细节对齿轮泵性能有重要影响。经过分析，内齿圈出油口半径为4时，内齿圈的应力、应变和位移变化最小。同时，通过研究螺栓直径是否满足受力来确定螺栓孔的最小直径，可得出螺栓公称直径为20时，泵体性能达到最佳状态。优化设计方案经过验证证明其可行性和有效性，优化后的内啮合齿轮泵具有更高的流量、更稳定的压力和更高的效率，能够满足在实际工程中的要求。这些优化设计方案不仅加强了泵体的性能和可靠性，同时也减少了泵体的噪音和能耗，有助于节约能源和降低环境污染。本研究为内啮合齿轮泵的优化设计提供了一种有效的方法和工具，对于提高泵的效率、降低成本、改善安全性具有一定的参考意义。同时，这项分析为改进内啮合齿轮泵的制造提供了思路和指导，对类似问题的研究提供了借鉴价值。关键词：内啮合齿轮泵；三维建模：出油槽：有限元分析：油膜厚度：AbstractInternal gear pump is a forward displacement pump that can transport liquid.It is widelyused in various industries because of its advantages such as simple structure and reliableoperation.In this paper,the structural parameters of internal gear pump are optimized andanalyzed in order to improve its performance and efficiency.Firstly,Solidworks 3D software isused for 3D modeling of internal gear pump,and the optimization design is carried out.Secondly,internal gear pump structure and force analysis.The analysis results show that the width anddepth of the oil groove and the taper of the oil outlet affect the force of the pump body.Throughthe calculation of the oil film thickness of the outer surface of the inner ring,the oil filmthickness of this design is greater than the minimum allowable oil film thickness,so the designmeets the use requirements.The finite element software analyzes the internal gear pump,especially the oil groove,the inner gear ring and the bolt.The oil outlet tank plays an importantrole in the pump body.Its structure and wall area have an impact on the pump performance,which can optimize the design and reduce the noise and energy consumption.Inner ring and boltanalysis can improve the durability and reliability of the pump.The structure of the oil outlet iscomplex,and the radius of the fillet affects the connection between the oil outlet and the oiloutlet wall.Through the finite element analysis of the oil outlet,it is found that the influence onthe oil outlet is the least when there is no fillet at the connection between the oil outlet and thetwo walls.Design details such as the size of the oil outlet of the inner gear ring and the diameterof the bolt hole have important influence on the performance of the gear pump.The analysisshows that when the oil outlet radius of the inner gear ring is 4,the change of stress,strain anddisplacement of the inner gear ring is the least.At the same time,by studying whether the boltdiameter meets the force to determine the minimum diameter of the bolt hole,it can beconcluded that when the nominal diameter of the bolt is 20,the pump body performance reachesthe best state.The optimized design scheme has been verified to prove