minihelix

Analysis of filling quantity of miniature helical coiled evaporator of separated type heat pipe;

小螺旋管蒸发段分离式热管充液量分析

Meanwhile a concept of the minimum helix angle is expounded too.

对小齿数齿轮传动的特点和计算要点进行分析，为在设计中避免小齿轮发生根切和齿顶变尖，合理选择基本参数提供了依据，并提出了小齿数齿轮传动中最小螺旋角的概

Aim for the problem that producing gears exist precision low and error big in practical produce,passed to technically regenerate to differential hanging gears of primeval equipment(Y320 roll-gear machinery),improved some big module-small spiral angle gears of producing quantity,attained to user requirement,and received the satisfactory economic performance.

针对在实际生产中遇到的齿轮加工精度低和误差大等问题,通过对原有设备(Y320滚齿机)的差动挂轮技术改造,提高了几种大模数小螺旋角齿轮的加工质量,达到了客户要求,收到了良好的经济效益。

Based on the mathematics physics model established before, a simulation study about the effect of vapor pressure on the heat transfer enhancement performance of the inside and outside triangle finned tube with small spiral angles has been carried out under the condition of various condensation heat_transfer differences in temperature.

根据笔者此前所建立的数学物理模型 ,在不同的冷凝换热温差下 ,进行了蒸汽压力对小螺旋角内外螺旋翅片管强化传热特性影响的模拟研究 。