Emulsion pump head body is the piston pump hydraulic end of the core components,the emulsion pump head bears great pressure. Therefore, the finite element analysis of the pump head is of great significance to improve the reliability and rationality of the product design.Because of the particularity of pump head structure, it is the key to reduce production cost and improve product competitiveness to study its processing technology and improve processing efficiency.The motion law of the piston pump, the pulsating flow rate and the pressure fluctuation caused by the pulsating flow are analyzed, and the related factors causing the pressure fluctuation are obtained, which provide theoretical basis for the design and improvement of the piston pump, and also provide important theoretical basis for the analysis of the stress state of the pump head body.
The stress distribution law and fatigue life distribution state of the emulsion pump head body under the maximum stress condition are analyzed and the improvement measures of the pump head structure are put forward according to the analysis results.According to the working condition and structure characteristics of pump body, pump head body is given from the nesting material, blank, large diameter hole processing, car ladder hole, milling inch thread, rolling to hydraulic autofrettage process is obtained, the characteristics of the nesting drill is analyzed emphatically, choose the workpiece rotation, outside chip structure, nesting auger drilling related technology is analyzed in detail,For example, the selection of cutting power, cutting amount, cooling and chip removal, as well as auxiliary devices for nesting drilling that are different from ordinary hole processing equipment
Tool parameters are the important factors that affect machining efficiency and tool life, due to the drilling work in confined Spaces, nesting in meet the machining efficiency at the same time, the determination of chip breaking and chip removal way is the key to nesting drill design, in addition, in the process of drilling tool axial vibration on the influence of the cutting Angle are analyzed, and the influence factor of hole axis deflection are given.Inch thread is machined by means of milling. The application of macro program improves the efficiency of screw thread milling.In order to increase the strength and service life of the pump head, the inner cavity is prestressed by the hydraulic autoreinforcing method.