| 摘要: |
| 在深入研究涡旋压缩机型线包络啮合原理的基础上,提出了涡旋齿端型线的三角函数类修正几何理论,给出了齿端型线的通用修正方程并探讨了各种可能的修正形式.采用等距线法导出了任意封闭压缩腔容积的通用解析表达式和内容积比计算公式.系统地分析了各修正参数对涡旋齿端形状、压缩机内容积比和气体载荷特性的影响,精确地给出了它们之间的定量关系,总结了修正参数变化与容积效率、摩擦泄漏损失变化之间的规律,指出了三角函数类修正与圆弧类修正的转化条件.上述结论同样适用于其他涡旋型机械的型线修正. |
| 关键词: 动力机械工程 型线 修正 三角函数 涡旋 |
| DOI： |
| Revised:June 02, 2003 |
| 基金项目:甘肃省自然科学基金 |
|
| Modification of Top Profile with Trigonometric Curve for Scroll Compressor |
|
|
|
| Abstract: |
| In this study, the geometry theory of top profile with trigonometric curve was presented based on research on the engaging principle of scroll compressors. General modification equations were given and various modifying patterns were discussed. The equidistant method was employed to calculate the volume of the compression chamber and a general equation was described. Modification parameters that affect the shape of top scroll, volume-reduction ratio, and gas forces were analyzed systematically, and the relations between them were accurately determined. The regularity between variation of modification parameters and that of volume efficiency and leakage loss was summarized. The condition for transformation between trigonometric-curve modification and arc-shape-curve modification was explained. The results can also be applied to modification of top profile in other scroll-type machines. |
| Key words: Dynamic machine engineering, trigonometric curve, profile, modification, scroll |
