毕业设计论文机械电子式软起动装置传动系统的设计.doc

PAGE 机械电子式软起动装置传动系统的设计 摘 要 当高速轴由电机驱动，带动太阳轮，然后带动行星轮转动，内齿圈固定，然后带动行星架输出运动的，在行星架上的行星轮既自转和公转，具有相同的结构。行星齿轮减速器是一种至少有一个齿轮的几何轴线绕着固定位置转动圆周运动的传动，变速器通常和若干行星轮和传递载荷的作用，为了使功率分流。渐开线行星齿轮传动具有以下优点：传动比大，结构紧凑，体积小、质量小，效率高，噪音低，运转平稳，因此被广泛应用于冶金，工程机械，起重，运输，航空，机床，电气机械及国防工业等部门，作为减速、变速或增速的齿轮传动装置. 本文设计的机械电子式软起动传动系统利用行星传动、蜗轮传动及变频调速技术，实现了对输送机输出速度的有效控制，达到了软起动目的。本文通过对机械电子式软起动装置的组成和工作原理的介绍和对传动系统进行分析和设计通过对调速电动机的转速控制, 使行星差动机构差动传动, 从而达到对输出轴无级调速的目的。 关键词：差动行星轮系,软起动,蜗杆传动机构 MECHANICAL ELECTRONIC FORMULA SOFT STRAT INSTALLMENT TRANSMISSION SYSTEM DESIGN ABSTRACT When the high speed shaft is driven by the electric motor, to drive the sun gear, and the planet wheel is driven to rotate, the inner gear ring is fixed, and then drives the planetary frame outputting motion, on the planet carrier planet wheel both rotation and revolution, has the same structure. Planetary gear reducer is driving a at least one gear geometric axis rotated around a circular motion of fixed position, the transmission is usually and planetary gear and transfer load, in order to make the power split. Involute planetary gear transmission has the following advantages: large transmission ratio, compact structure, small volume, small mass, high efficiency, low noise, smooth operation, so it is widely used in metallurgy, engineering machinery, lifting, transportation, aviation, machine tools, electrical machinery and defense industry and other departments, as gear reducer, gear or growth. The design of the mechanical electronic soft starting transmission system using planetary gear, worm gear drive and frequency conversion technology, realize the effective control of the output conveyor speed, reach the purpose of soft starting. In this paper, the composition and working principle of soft starting device for mechanical and electronic type introduction and analysis and design through to control motor speed control of the drive system, the planetary differential mechanism of differential drive, so as to achieve the purpose of the outpu