毕业设计（论文）-设计熔模铸造生产用螺旋搅蜡机.doc

设计熔模铸造生产用螺旋搅蜡机 作者姓名：邓海林 专业班级：座机电话号码301 指导老师：李明辉 摘 要 螺旋搅蜡机是熔模铸造生产使用的一种制备糊状模料的机械设备。搅蜡机选型时应充分了解各种搅蜡机的特点，并根据模料的种类，精铸产品的品质要求、材质、批量和铸件大小等进行合理选择。搅蜡机的工作原理是：电动机通过传动装置带动工作机构 螺旋搅拌轴 转动，靠螺旋齿搅拌与挤压作用完成混合调制糊状蜡料动作。 搅蜡机的工作是由电动机输入动力，经过一个变速装置和V带传动，最终将动力传至搅拌轴。搅蜡机的核心装置是变速器。本设计中的变速器是一个二速变速传动装置，它能够输出两种工作转速，这是本设计的重点也是难点。设计内容：传动方案的确定，电动机的选择、传动比的分配、传动零件的结构设计和校核计算、箱体结构及附属零件的设计、标准件的选用等。传动比的分配本着机体结构紧凑、体积小、重量轻的原则来确定；传动零件的设计按强度准则设计，传动零件的装配应使载荷在机体上的分布均匀，装卸方便。整机设计应符合“经济、实用、方便”的原则，以最经济的方式制造出完美的产品为总体的设计思想。 关键词 变速器 搅蜡机 轴 　滑移齿轮　 The spiral stirred used in investment casting design Abstract: Screw Stirred wax machine is mechnical equipment,which is a stirring wax investment casting production use a paste wax preparation. We should fully understand their features of various stirred wax machine when stirred wax machine is secllected,and make a reasonable choice according to the type of model materials, cast the quality of their products, materials, the lot size and Casting. The working principle is : motor driven gear through work screw mixing rotation, rely on screw mixing and extrusion role modulation completed mixed paste waxes action. Stirred wax machine is imported from the motor power,after a transmission device,and make force to mixing axis.The core deveice of Stirred wax machine is transmission. transmission device is a two speed transmission in the design,which can output both working speed,so it was designed to focus on difficult.The point of design is identification of the transmission program,the choice of motor,the distribution of transmission ratio, transmission parts structural design, Check, Box subsidiary structure and the design of components, and the selection of standard parts. The distribution of transmission rati is identified based on simple body structure,small size and light weight. Transmission parts by the strength of the design criteria for design,transmission parts assembly should enable the load on the body of the uniform distribution, handling convenience and the o