绞肉机的设计__毕业设计.doc

绞肉机的设计 PAGE iii 毕业论文题目 摘 要 随着人们生活水平的提高以及对产品小型化，精致化，安全，便捷地需要，越来越多的小型的家用绞肉机走进了人们的日常生活中。 本文就主要论述了家用绞肉机的工作原理、主要技术参数、传动系统、典型零件的结构设计等等。首先介绍了家用绞肉机的工作原理，即将肉放进托盘后，因为肉的重力和推进螺杆的作用，将肉连续地送往绞刀口进行切碎。托盘面积较大，待绞肉时，可将多余的肉放在托盘上，逐步地推进绞筒内，减缓对刀具的压力。同时采用弹性活销联轴器联结螺杆和电机，结构简单，可靠性高，工作平稳可靠，拆卸方便。推进螺杆的螺距后大前小，根径后小前大，使其推进螺杆与绞筒之间的容积逐渐减小，实现了对物料的挤压作用。采用可替换的绞刀和挤肉样板，可以满足顾客绞肥肉和瘦肉的不同需求。 这种绞肉机结构简单，拆洗方便，体积较小，适合普通家庭使用。 关键词：家用绞肉机；推进螺杆；弹性活销联轴器；托盘；绞刀；挤肉样板； Abstract With the improvement of living standards as well as the miniaturization of products, refined, safe, and convenient to the needs of people，a growing number of small-scale household meat grinder is going into peoples daily life. This article focuses on the domestic meat grinder of the working principle, main technical parameters, transmission system, the structural design of typical parts and so on. First of all,it introduced the working principle of the household meat grinder,make the meat into the tray, as the meat of the gravity , the role of promoting the screw will be continuously sent to the meat cutter to shred edge. The tray is big , and the meat can be placed on the extra tray, then be gradually pushed into the cutter,so it can slow down the pressure to the tool. At the same time a flexible coupling is using to link the pin screw and motor. Its structure is simple , high reliability, stable and the disassembly is convenience. The advancing large screw pitch before the small, small front after the root diameter,and as it twist, the volume between the cage and the winch spool will be reduced gradually, then it has realized to the material suqeezing action. As the cutter knife and squeeze can be replaced, it can meet customers different needs to cut the fat and lean meat . The structure of this meat grinder is simple. It can be taken apart easyly , washed conveniently.Besides the volume is small, suits for the ordinary family use. Key words: Household meat grinder;Advancing screw; Flexible coupling live