轴向柱塞泵配流副温度分布压力影响试验研究

doi:10.3901/JME.2025.16.250

摘要/Abstract

摘要： 配流副作为轴向柱塞泵的关键摩擦副之一，其温度分布直接关系着轴向柱塞泵的使用性能和工作寿命。为了得到负载压力对配流副油膜温度分布的影响规律，提出配流副温度原位测试方案，对比5种常用插值方法的均方根误差，其中采用基于格林函数的双调和样条插值拥有最小的插值误差。测量7种压力下的油膜温度，并将采集到的离散温度信息通过相应插值算法反演得到配流副油膜温度场。结果表明，最高温度出现在下死点高压侧脱离区，最低温度出现在低压侧加强筋处。下死点高压侧脱离区平均温升最大，且随着负载压力的升高先下降，在15 MPa时达到最小，之后上升。低压侧加强筋处的平均温升最小。测点最大温升随负载压力的升高呈现先下降后上升，而平均温升和最小温升受压力影响相对较小。原位测试方案能够获得配流副更为准确的油膜温度，后续可从优化配流盘三角槽结构的角度进行进一步研究。

关键词: 轴向柱塞泵, 配流盘, 温度分布, 双调和样条插值, 压力

Abstract: As one of the key friction pairs of the axial piston pump, the temperature distribution of the valve plate is related to the performance and working life of the axial piston pump. In order to obtain the effect of load pressure on the temperature of the oil film of the valve plate, an in situ measurement scheme of the temperature of the valve plate is proposed. The root-mean-square errors of 5 common interpolation methods are compared. The biharmonic spline interpolation based on Green’s function has the smallest interpolation error. The oil film temperature under 7 pressures is measured, and the collected discrete temperature is retrieved through the corresponding interpolation algorithm to obtain the oil film temperature field of the valve plate. The results show that The highest temperature appears in the exit part of the high pressure side at the bottom dead center, and the lowest temperature appears in the reinforcement bar of the low pressure side. The average temperature rise in the escape part of the high pressure side at the bottom dead center is the largest, and decreases first with the increase of the load pressure, reaches the minimum at 15 MPa, and then rises.,and the average temperature rise at the reinforcement bar of the low pressure side is the smallest. With the increase of load pressure, the maximum temperature rise of the measuring point of the distribution pair decreases first and then increases. The mean temperature rise and the minimum temperature rise are less affected by the pressure. In situ testing scheme can obtain more accurate oil film temperature of the valve pair, and further research can be carried out from the Angle of optimizing the triangular groove structure of the valve plate.

Key words: axial piston pump, valve plate, temperature distribution, biharmonic spline interpolation, stress

中图分类号:

TH322

段仪征, 侯潇男, 吴维, 苑士华. 轴向柱塞泵配流副温度分布压力影响试验研究[J]. 机械工程学报, 2025, 61(16): 250-258.

DUAN Yizheng, HOU Xiaonan, WU Wei, YUAN Shihua. Experimental Study on the Effect of Pressure on the Temperature Distribution of the Valve Plate of Axial Piston Pump[J]. Journal of Mechanical Engineering, 2025, 61(16): 250-258.

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