新型斜面拉杆式曲柄调速机构设计及分析
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摘要
为了实现大功率无级变速器在运行过程中输出速度适时可调,文中通过一套特定调速机构的设计,达到了适时调节曲柄长度的目的。对调速机构进行结构设计,采用新型斜面拉杆式曲柄调速方法,通过对特殊空心主轴的设计,使其与斜面拉杆相作用,能够实现不停机调速和速度可以调到最低值零。为配合双输出无级变速器的结构形式,文中设计考虑到两项并联同时输出。通过ADAMS仿真分析,其结果表明该结构不仅能满足大功率无级调速的要求,同时曲柄长度呈线性稳定变化,为后续调速机构部分的刻度分度打下了基础。
In order to ensure that the output speed of the high-power step-less transmission during operation can be adjusted in a timely manner,a speed-regulating mechanism featuring the adjustable crank length is developed. For the mechanism,the structural design is conducted,and the new speed-regulating method based on the cant draw-bar crank is applied; the special hollow spindle interacts with the cant draw-bar,thus constantly regulating the speed and ensuring that the speed can be adjusted to zero—the lowest level. In order to match the structure of the double-output step-less transmission,two parallel items are output simultaneously. The result obtained from the ADAMS simulation analysis indicate that this mechanism is well suited to the high-power step-less transmission,and the crank length,liner as it is,changes steadily,which lay the foundation for the graduation of the follow-up speed structure.
In order to ensure that the output speed of the high-power step-less transmission during operation can be adjusted in a timely manner,a speed-regulating mechanism featuring the adjustable crank length is developed. For the mechanism,the structural design is conducted,and the new speed-regulating method based on the cant draw-bar crank is applied; the special hollow spindle interacts with the cant draw-bar,thus constantly regulating the speed and ensuring that the speed can be adjusted to zero—the lowest level. In order to match the structure of the double-output step-less transmission,two parallel items are output simultaneously. The result obtained from the ADAMS simulation analysis indicate that this mechanism is well suited to the high-power step-less transmission,and the crank length,liner as it is,changes steadily,which lay the foundation for the graduation of the follow-up speed structure.
引文
[1]周有强.机械无级变速器[M].北京:机械工业出版社,2001.
[2]聂松辉,刘宏昭,邱爱红.新型脉动式无级变速器的研制[J].华南理工大学学报:自然科学版,2007,35(8):44-48.
[3]张世昌,李旦.机械制造技术基础[M].北京:高等教育出版社,2007.
[4]郑文纬,吴克坚.机械原理[M].北京:高等教育出版社,2012.
[5]濮良贵,陈国定.机械设计[M].北京:高等教育出版社,2013.
[6]张晋西,邱骞,郭学琴.一种新型机械式无级变速器设计及运动模拟[J].机械设计,2012,28(6):38-39.
[7]杜力,任亨斌,黄勇刚,等.平面连杆机构曲柄调速结构设计[J].图学学报,2013,34(5):20-24.
[8]张世昌,李旦.机械制造技术基础[M].北京:高等教育出版社,2007.
[9]杜力,冯俊,黄茂林.双输出函数发生机构类型综合[J].机械设计,2008,25(6):33-34.
[2]聂松辉,刘宏昭,邱爱红.新型脉动式无级变速器的研制[J].华南理工大学学报:自然科学版,2007,35(8):44-48.
[3]张世昌,李旦.机械制造技术基础[M].北京:高等教育出版社,2007.
[4]郑文纬,吴克坚.机械原理[M].北京:高等教育出版社,2012.
[5]濮良贵,陈国定.机械设计[M].北京:高等教育出版社,2013.
[6]张晋西,邱骞,郭学琴.一种新型机械式无级变速器设计及运动模拟[J].机械设计,2012,28(6):38-39.
[7]杜力,任亨斌,黄勇刚,等.平面连杆机构曲柄调速结构设计[J].图学学报,2013,34(5):20-24.
[8]张世昌,李旦.机械制造技术基础[M].北京:高等教育出版社,2007.
[9]杜力,冯俊,黄茂林.双输出函数发生机构类型综合[J].机械设计,2008,25(6):33-34.