乳化液泵是煤矿井下综采工作面液压支架和其它液压驱动装置的动力源，其工作性能直接影响着液压支架及整个综采设备的可靠性运行。近年来，随着高产高效综采技术的发展，要求乳化液泵站能够提供更高的工作压力和更大的供液流量，导致泵的结构尺寸不断增大，在井下工作面有限的巷道空间条件下，这对移动式泵站系统的安装放置带来了很大的困难。因此进行乳化液泵性能和结构参数的优化对乳化液产品的设计具有一定的指导作用。 本文以RBW315/31.5型矿用乳化液泵作为研究的物理对象。首先根据往复柱塞泵的传动和配流原理，分析了影响乳化液泵液力端性能的因素，并建立了乳化液泵容积损失率的数学模型，利用AMESim系统仿真软件分析了乳化液泵系统液力端的运动特性，得到各因素与容积效率的影响关系，结果表明：曲轴转速、吸排液阀弹簧刚度、吸排液阀阀芯质量、阀芯开口量都对容积效率有直接的影响。 研究分析表明，曲轴转速存在着一个拐点阈值，转速高于该值后，容积效率会随之减小。利用频率响应法对乳化液泵的配流系统进行了频率响应分析，确定了频率响应的截止频率，该截止频率就是拐点阈值。配流系统在未发生喘振的前提下提高配流系统频宽可以提高曲轴转速。通过泵单柱塞配流过程的仿真分析，得到配流系统的频宽与吸排液阀弹簧刚度成正比，与吸排液阀芯质量成反比。 通过正交试验设计对多因素参数进行优化，利用正交试验的极差分析法与方差分析法分析了各因素对配流系统吸排液特性的影响因子，确定了各因素的最佳优化组合方案。仿真试验表明，所得优化方案的容积效率提高约4%，对乳化液泵容积效率的提高有着明显的改善。

The emulsion pump is the power source for the hydraulic support and other hydraulic drive devices in the coal mining face of the coal mine. Its working performance directly affects the reliability operation of the hydraulic support and the whole fully mechanized mining equipment. In recent years, with the development of high-yield and high-efficiency fully mechanized mining technology, it is required that the emulsion pumping station can provide higher working pressure and larger liquid supply flow rate, resulting in an increase in the structural size of the pump and limited roadway space in the underground working face. Under the conditions, this brings great difficulties to the installation and placement of the mobile pumping station system. Therefore, the optimization of the performance and structural parameters of the emulsion pump have a certain guiding effect on the design of the emulsion product. In this paper, RBW315/31.5 type mineral emulsion pump is used as the physical object of research. Firstly, according to the transmission and distribution principle of the reciprocating plunger pump, the factors affecting the hydraulic end performance of the emulsion pump were analyzed, and the mathematical model of the volume loss of the emulsion pump was established. The hydraulics of the emulsion pump system were analyzed by AMESim system simulation software. The relationship between the factors and the volumetric efficiency is achieved. The results show that the crankshaft speed, the suction and discharge valve spring stiffness, the suction and discharge valve spool quality, and the spool opening have a direct impact on the volumetric efficiency. Research and analysis show that there is an inflection point threshold for the crankshaft speed. When the speed is higher than this value, the volumetric efficiency will decrease. The frequency response analysis of the distribution system of the emulsion pump was carried out by the frequency response method, and the cutoff frequency of the frequency response was determined. The cutoff frequency is the inflection point threshold. The distribution system can increase the bandwidth of the distribution system by increasing the bandwidth of the distribution system without surge. Through the simulation analysis of the pump single plunger distribution process, the bandwidth of the distribution system is proportionate to the spring stiffness of the suction and discharge valve, and inversely proportional to the mass of the suction and discharge valve core. The multi-factor parameters were optimized by orthogonal test design. The influence factors of various factors on the characteristics of liquid absorption and drainage of the distribution system were analyzed by the range analysis method and variance analysis method of orthogonal test. The optimal combination scheme of each factor was determined. Simulation experiments show that the volumetric efficiency of the optimized solution is improved by about 4%, and the volumetric efficiency of the emulsion pump is improved significantly.