文档介绍：摘要
本次毕业设计是设计一个螺旋千斤顶,该千斤顶主要有底座螺母,螺杆,手柄,托杯等零部件构成。设计过程中主要进行以下几个方面的工作:查阅相关机械设计资料,初步确定螺旋千斤顶的整体设计方案;确定螺旋千斤顶的整体结构;对螺旋传动部分进行设计计算并进行强度校核;利用proe进行装配,对整体结构进行修改完善;绘制螺旋千斤顶的装配图及各零部件图;设计原始参数:螺旋千斤顶的最大起重重量,最大起升高度H=190mm。在这次毕业设计中,了解了千斤顶的结构原理,在设计过程中认识到三维建模的作用,还学会了简单的绘图技巧。
关键词:螺旋千斤顶;底座螺母;螺旋传动;强度校核
Abstract
The graduation project is to design a mechanical screw jack, the main design elements is the calculation of the size of the various parts, checking the strength of the special parts, to achieve a reasonable request under the premise of the pro / e assembly and simulation. First, by calculating the parameters check the manual as well as books to take reasonable parameters, and then modify the size, in the process of checking the structural data on the whole more optimization. Secondly, the pro / e assembly, we should pay attention to the types of constraints and constraint object known constraint conditions are not met, the new benchmark as a constrained object will affect the overall simulation. In the simulation to add two motors, respectively, as the up and down movement and rotation, to choose a reasonable speed before the capture. Export a reasonable view and proportion guide drawings, the new drawing, select, and then modify and save as dwg format files on the basis of this figure. In this graduation project, understand the principle of the structure of the jack, and recognize the role of three-dimensional modeling in the design process, learned a simple simulation and drawing skill.
Keywords: Screw jack ;design ;assembly ;pro/e ;emulate
目录
摘要 I
ABSTRACT II
1 绪论 1
起重机械的概述 1
目的 1
国内外千斤顶行业发展趋势 2
使用原理 2
2 计算及说明 3
(一) 螺杆的设计计算 4
(二) 螺母的设计计算 7
(三) 托杯的设计计算 9
(四) 手柄的设计计算 10
(五) 底座的设计计算 11
(六) 千斤顶的效率计算 12
3使用千斤顶的注意事项 13
4 结论 14
致谢 15
参考文献 16
1 绪论
起重机械的概述
起重机械是一种以间歇作业方式对物料进行起升和水平移动的搬运机械。起重机械的作业通常带有重复循环的性质。一个完整的作业循环一般包括取物、起升、平移、下降、卸载,然后返回原处等环节。经常起动、制动、正向和反向运动是起重机械的基本特点。起重机械广泛用于交通运输业、建筑业、商业和农业等国民经济各部门及人们日常生活中。
起重机械由运动机械、承载机构、动力源和控制设备以及安全装备