期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
2BQF-2型气吸式精量播种机的改进
1
作者 刘万欣 《农业机械化与电气化》 2002年第5期37-37,共1页
1 2BQF-2型气吸式精量播种机的不足 为了响应农业部和省农机局 “关于实施农业节本增效工程技术” 的号召,1998年以后,葫芦岛市从外地先后引进两批小型精量播种机近50台投入田间使用,生产实践证明,该机还存在许多不足之处。
关键词 2BQF-2 气吸式精量播种机 改进 插板 鼓型轮 行距调整
下载PDF
Design and dynamic simulation for the transmission mechanism of drum-shaped gear with ring-involute teeth
2
作者 李笑 李庆凯 +1 位作者 李晓芳 赵永强 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2007年第2期166-169,共4页
The new mechanism of drum-shaped gear with ring-involute teeth is presented to implement dimensional transmission for the stairlift. The structure of the gear and rack in this actuating mechanism is designed, and then... The new mechanism of drum-shaped gear with ring-involute teeth is presented to implement dimensional transmission for the stairlift. The structure of the gear and rack in this actuating mechanism is designed, and then its inherent radius of turn and modulus selection have been studied. In order to make the mechanism move steadily, the drive guide is proposed. After using the dynamics simulation software ADAMS to analyze the 3D model, this kind of mechanism is confirmed to be able to implement dimensional track. The useful method and basis would be provided for the optimization design of the mechanism. 展开更多
关键词 spatial rack drive guide dynamic simulation
下载PDF
Development and Theoretic Validation of Model of Drum Level Sloshing
3
作者 曹小玲 刘孝锋 苏明 《Journal of Shanghai Jiaotong university(Science)》 EI 2007年第1期85-90,95,共7页
In order to develop a feasible model of drum level sloshing, the mechanism of drum level sloshing was analyzed, and the model of drum level sloshing was developed on the Easy5 software flat. The thermodynamic property... In order to develop a feasible model of drum level sloshing, the mechanism of drum level sloshing was analyzed, and the model of drum level sloshing was developed on the Easy5 software flat. The thermodynamic property of the model was validated by using the reference model, which was set up by using the method of lump parameter. The results indicate that the model can precisely reflect the phenomena of thermodynamic property inside drum, and the numeric error is within 1%. And the hydraulic property of the model was validated by the analytical theory of liquid sloshing, and the results indicate that the hydraulic property inside drum can also be correctly reflected by the model, and the sloshing period error is within 5%. The important work was done for exploring modeling for drum level sloshing, research of drum level sloshing and precision controlling of drum level. 展开更多
关键词 modularization modeling model of drum level sloshing combined cycle BOILER false level
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部