连续拉弯矫直机承载能力分析  

Carrying Capacity of Stretching-bending Rectifier

作　　者：宋朝省[1] 朱才朝[1] 张晓蓉[1] 吴佳芸[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030

出　　处：《重庆大学学报（自然科学版）》2007年第7期22-25,共4页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(50005025);教育部新世纪优秀人才支持计划资助项目(NCET-05-0766)

摘　　要：针对目前连续拉弯矫直机延伸率达不到设计要求,V型带磨损严重,并出现打滑这一问题,在分析连续拉弯矫直机构成和矫直原理的基础上,推导出了矫直机传动系统速比及理论延伸率的计算公式。对传动系统承载能力进行了分析,得出了无级变速器额定输出扭矩偏小是连续拉弯矫直机延伸率达不到要求的主要原因。提出了增加弹簧刚度以增加无级变速器输出扭矩的改进措施,使矫直机实际延伸率满足生产要求,具有一定的理论和工程实用价值。In accordance with the deficient elongation of the Stretching-bending Rectifier, as well as the severe wear and slipping of V-belt , the driving system velocity ratio of rectifier and the calculation formula of the theoretical elongation are deduced, which are based on the analysis of its structure and reeling principle. The carrying capacity of the driving system is also analyzed and it reaches the main reason for the elongation of the stretching-bending rectifier that cannot reach request, which is caused by the step less torsion of fixed output of the continuously variable transmission. The improvement measure which can be achieved by increasing the stiffness of the spring to increase the output torsion of the continuously variable transmission is proposed. Thus it makes the actual coefficient of elongation,which can satisfiy the producing request.

关 键 词：拉弯矫直机 无级变速器 承载能力 延伸率 

分 类 号：TG333.2[金属学及工艺—金属压力加工]