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指出了轴向柱塞泵和曲轴连杆液压电动机配流盘现有液压力近似计算公式的不足和缺陷，引入剪切长度和平均剪切长度的概念和定义，定性分析了配流副密封带中油液粘度的变化规律，并给出了油液粘度随油温和油压变化的数学模型．在此基础上，以考虑油液粘度随油压和油温变化情况下配流副流场有限元数值计算结论为依据，给出了一套基于二维油压分布规律、适用于轴向柱塞泵和曲轴连杆液压电动机的配流副液压力近似解析计算公式．以曲轴连杆液压电动机端面配流副为例，将该计算公式同目前常用的其他几种近似解析计算公式的计算结果进行了对比分析，说明使用给出的计算公式可提高配流副液压力计算精度，并进一步说明了忽略油液粘度变化将严重影响配流副液压力的计算精度．
The insufficiency and defect of the approximate hydraulic pressure formula of axial piston pump and crankshaft connecting rod hydraulic motor are pointed out. The concept and definition of shear length and average shear length are introduced. Viscosity changes, and gives the mathematical model of oil viscosity with oil temperature and oil pressure changes. On this basis, based on the calculation of the finite element numerical calculation of the flow field of the flow field with the variation of the oil pressure and the oil temperature, a set of hydraulic distribution law based on two-dimensional pressure is given, which is suitable for the axial piston Approximate Calculation and Calculation Formulas of Hydraulic Pressure for the Pairing of Hydraulic Pump and Crankshaft Connecting Rod Hydraulic Motor. Taking the crankshaft connecting rod hydraulic motor end face distributor as an example, this calculation formula is compared with other commonly used approximate analytical calculation formulas, which shows that using the given formula can improve the accuracy of hydraulic pressure calculation , And further shows that ignoring the change of oil viscosity will seriously affect the calculation accuracy of the pressure of the auxiliary flow.