摘要本文根据给定的调距桨相关参数,完成了桨叶砂型铸造工艺系统的设计工作。 对于给定的调距桨叶片,借助三维建模软件,首先完成了三维模型的建立。接下来进行铸造工艺性分析以确定铸造工艺方案,之后进行本设计关键环节——确定铸造 工艺参数和浇注系统以及冒口、出气孔等设计工作,最后完成铸造工艺装备的设计和 铸造设备的选用工作。84553
对于三维建模,主要利用“缠绕法”来完成。先完成调距桨断面曲线的绘制,然 后进行曲线链的拟合和实体化操作。
铸造工艺参数和浇注系统及冒口、出气孔等的设计工作,则参考《铸造手册》等 工具书、《铸造工艺设计》等相关书籍和已有的螺旋桨砂型铸造成功案例及相关论文 来计算并给定数值。最后,工艺装备设计参考标准工艺设备完成简单的设计。
就国内而言,生产的螺旋桨多为定距桨,作为更加先进的调距桨的生产相对较少。 因此,对调距桨叶片的砂型铸造工艺系统进行相关探索是很有必要的。
本文针对给定的调距桨叶片,拟定了一套砂型铸造工艺系统方案,可以作为调距 桨叶片砂型铸造的模型进行更加深入的研究。
毕业论文关键词:调距桨 砂型铸造 工艺系统设计
Abstract to related parameters of the given CPP, the papper completed the design about process system of sand casting。
For a given pitch propeller blade, the 3D model is established with the aid of 3D modeling software。 Next step is to analysis the CPP to determine the casting process。For the design of key link—determining the casting process parameters and gating system and
riser, air outlet hole design, the final completion is to complete the casting process and equipment design and casting equipment selection。
For three-dimensional modeling, use "winding method" to complete。 The curve of pitch curve is drawn firstly, and then ,the fitting and the operation of the curve are carried out。
Design work of casting process parameters and gating system and riser, air outlet hole are finished referring to the manual casting tool books and other books and existing propeller about sand casting and papers about casting process。 Finally,costing process equipment design is completed according to standarded process equipment。
Domestically, the production of the propeller as a fixed pitch is popular。On the contact, the advanced pitch propeller production is relatively rare。 Therefore, sand casting process system research of variable pitch propeller blade is very necessary。
This paper sets a model of sand casting process of CPP ,which can be a model for more in-depth research in the future。
Keywords: Controllable pitch propeller sand casting process system designing
目 录
第一章 绪 论 1
1。1 课题研究背景 1
1。2 选题的目的和意义 2
1。4 本课题主要研究内容 3
1。5 本章小结 3
第二章 铸造工艺设计总体考虑 4
2。1 关于调距桨 4
2。2 设计对象的生产状况和尺寸参数 4
2。3 审查零件结构的铸造工艺性 6