斜行电梯变角度机构减速器设计【摘要】该课题要求运用所给的斜行电梯运行的条件设计出一台蜗轮蜗杆升降机。蜗轮蜗杆机构是一种被广泛运用的,典型的传动机构。设计方法和基本的原理是电动机带动蜗杆进行转动,蜗杆与蜗轮之间配合旋转,蜗轮上的内螺纹带动丝杆进行转动,产生轴向的运动。首先根据斜行电梯的载重要求,计算出丝杆的承载力,再按照丝杆要求的长度计算出丝杆的直径。通过丝杆的直径对蜗轮蜗杆进行选型,并且求出传动比等相应的数据。根据要求的上升速度来算出螺距与公称直径等丝杆的参数。最后进行材料的选取与校验,使得整个机构能正常工作。完成设计后运用proe进行参数化建模,可以方便进行参数上的修改,以满足以后多种参数的需求,运用cad形成装配图和零件图,完成汇总。32657
【毕业论文关键词】升降机,蜗轮蜗杆,斜行电梯
Reducer design of Variable Angle mechanism of Oblique lift
[Abstract] The subject requirements to design a worm and worm wheel lifter according to the condition of oblique lift. Worm drive is a kind of widely used and typical transmission mechanism. The design method and the basic principle is the motor drives the worm to rotate, Cooperate with rotating between worm and worm gear, the worm wheel drives the screw rod to rotate, axial movement. According to the load requirements of ramp elevator, calculate the bearing capacity of the screw rod, then in accordance with the requirements of wire rod length to calculate the diameter of wire rod. The screw diameter selection of the worm, and calculate the transmission ratio of the corresponding data. According to the parameters to calculate the rising speed of pitch and the nominal diameter of the screw rod etc.. Finally, the selection and verification of materials, the mechanism can work normally. After the completion of the design using proe parametric modeling, can facilitate parameter modification, in order to meet the needs of various parameters after using CAD, the formation of assembly and parts drawing, complete summary.
Keyword: lift, worm, oblique lift
目录
第一章 绪论 1
1.1斜行电梯的发展 1
1.2升降机的发展与历史 1
1.3 问题的提出 2
1.4课题的研究意义 2
第二章 设计方案的选择 3
2.1 选用螺纹丝杠 3
2.2 选用滚珠丝杠 4
2.3 最终方案选择 4
第三章 蜗轮蜗杆的设计 5
3.1 传动比的确定 5
3.2 蜗轮蜗杆尺寸参数的确定 5
3.3蜗轮蜗杆参数表[11] 9
3.4 蜗杆轴的设计与校验 10
第四章 螺纹丝杠的设计 13
4.1螺纹丝杠材料选择 13
4.2螺纹丝杠牙型的选择 13
4.3 螺纹耐磨性计算 14
4.4螺纹丝杠自锁的验算 14
4.5螺纹丝杠稳定性的计算与长度的估算 15
4.6螺纹丝杠强度计算 16
4.7 螺纹牙的校验 17
第五章 滚珠丝杠的设计与校验 19
5.1滚珠丝杠简介 19
5.2 滚珠丝杠的设计与选型 20
5.3 滚珠丝杠动载荷校验 21
5.4 滚珠丝杠极限转速校验 22
5.5 滚珠丝杠强度计算 22
第优尔章 轴承的选择 24
6.1 滚动轴承的选择 24
6.2 推力轴承的选择 25
第七章 升降机附件的设计 26