节点文献
新型变齿厚齿轮传动装置效率特性与实验
The Research on Efficiency Characteristics and Experiment of the Transmission Based on New Variable Tooth Thickness Gear
【作者】 李荣；
【导师】 王光建；
【作者基本信息】 重庆大学 ， 机械制造及其自动化， 2014， 硕士
【摘要】 课题来源于国家自然科学基金项目（50705100，51275538）。基于复合变位的新型渐开线变齿厚齿轮，在调隙、精密传动、车辆动力传动等领域具有广泛应用前景。在精密传动系统中，齿轮侧隙是重要参数之一，直接影响伺服控制的稳定性、精度和系统灵敏度。当侧隙过小时，齿轮容易发热，影响传动效率。论文针对不同侧隙时新型变齿厚齿轮传动效率特性展开理论和实验研究。论文主要内容如下：①根据新型变齿厚的结构特点，建立侧隙与变齿厚齿轮传动搅油损失的参数化数学分析模型；在此基础上，研究不同传动侧隙对传动效率的影响关系，为可调侧隙变齿厚齿轮传动提供理论依据；②以不同侧隙的大小为参数，考虑润滑和散热等条件，建立新型变齿厚齿轮不同侧隙时的热分析有限元模型，对复合变位变厚齿轮的发热进行仿真分析；③在恒功率和恒转矩时，不同侧隙条件下，对复合变位变齿厚齿轮传动开展了实验研究；实验结果表明理论分析和实验研究一致性较好。
【Abstract】 This subject is supported by the National Natural Science Foundation（NO.50705100，51275538）. The new type of variable-thickness involute gear basedon composite modification will have broad application prospects in transfer gap,precision driving, and vehicle powertrain and so on. The backlash is one of theimportant factor of the gear transmission. It will affect the stability of the servo control,precision and sensitivity of the system. When the backlash is too small, gears are easy toheat, and the transmission efficiency is poor. The thesis expand research of the newvariable gear tooth thickness efficiency characteristics against different backlash.This article mainly contains:(1) Establish a mathematical analysis model according to the structuralcharacteristics of the new variable tooth thickness. And compile corresponding programto analysis its transmission efficiency characteristic. Try to identify the relationshipbetween backlash and transmission efficiency. It will provide a theoretical basis foradjusting the backlash, so that the gear pair will has a good transfer performance.(2) Establish a finite element model of the new variable gear tooth thickness withthe different size backlash as parameter. In addition, Consider lubrication and coolingconditions make a heat simulation analysis on the new type of variable-thicknessinvolute gear.(3) Take the constant power or constant torque and different backlash as conditions,Composite variable displacement gear tooth thickness carried out a experimental studyon composite variable displacement gear tooth thickness. Experimental results showthat the consistency between theoretical analysis and experimental is good.