活塞冲压式棒状生物质成型机成型筒的优化设计

Optimum design of the molding drum of the piston punch biomass briquetting machine

为提高成型筒的耐磨性,对液压活塞冲压式成型机的成型筒进行优化,设计了内壁粘贴一定厚度氧化铝陶瓷的成型筒,则内壁粘贴陶瓷是否被破坏成为影响成型筒可靠性的关键因素。通过ANSYS workbench仿真分析后得到成型筒原采用材料45号钢和内壁粘贴氧化铝陶瓷的不同变形量是导致失效的主因,提取成型筒锥度、成型筒小端内直径,成型筒高度、成型筒内陶瓷厚度和成型筒45号钢厚度为5个主要因素。通过单因素分析和双因素分析至最后将5个因素排列组合为27组设计点进行分析,综合分析得出,在成型同锥角角度为7°、成型筒小端内直径为45.0 mm、成型筒长为150.0 mm、成型筒内壁陶瓷厚度4.0 mm、成型筒内的45号钢厚度14.0 mm时成型筒的应变最小。

In order to improve the wear resistance of the cone shape,the hydraulic piston punching forming machine cylinder is optimized,and the forming tube is pasted on the inner wall of a certain thickness of alumina ceramics,thus whether the inner wall of the alumina ceramics is broken or not has become the key factors affecting cylinder reliability. Through the analysis of the ANSYS workbench simulation,the original use of material of No. 45 steel and the lining of paste alumina ceramics of different deformation are the main causes of failure,here 5 main factors extracted are the molding cylinder taper cone,small end diameter,tube length,tube forming molding ceramic thickness,and molding cylinder No. 45 steel thickness. By single factor and two factors analysis,the 5 factors are arranged and combined into the design points of the 27 groups design analysis,comprehensive analysis shows that the combination of cone angle of 7 degrees,forming small end cylinder inner diameter of 45. 0 mm,length150. 0 mm,cone cylinder shaped tube wall thickness 4. 0 mm,ceramic molding cylinder No. 45 steel thickness 14. 0 mm forming tube strain has the minimum displacement.