齿轮

It mainly by the gear transmission chain drive components, gear transmission gear from the two groups to achieve variable-speed rotary tiller planting problems.

它主要由齿轮传动链传动组成，其中齿轮传动由2组齿轮来达到旋耕播种变速速问题。

Pass to expati at e the characteristics of segment double circular arc gear, introducing the appl ication of segment double circular arc gear in turbine compressor, It presented that segment double circular arc gear in the high speed and large deeply turbi ne compressor was necessary.

通过阐述分阶式双圆弧齿轮传动特点，介绍了分阶式双圆弧齿轮在透平压缩机中的应用，说明在高速、型透平压缩机中采用分阶式双圆弧齿轮是必要的。

On the basis of analyzing the relationship between the coincidence coefficient and the gear bearing capacity in gear drives, the coincidence coefficient round number design method and the coincidence coefficient equation represented by the gear basic parameters.

对齿轮啮合传动中重迭系数与齿轮承载能力的关系进行了初步的探讨和分析，并推导出用齿轮基本参数直接表达的重迭系数方程和提出了"重迭系数圆整设计法"的概念。

The general type that decelerate the machine has:The cylinder wheel gear decelerates the machine ,cone wheel gear decelerates the machine ,wheel gear-cochlea pole decelerates the machine ,stalk park type decelerates machine ,assembles type decelerate machine ,couplet type decelerate machine ,couplet type decelerate machine .

减速器的一般类型有：圆柱齿轮减速器、圆锥齿轮减速器、齿轮-蜗杆减速器、轴装式减速器、组装式减速器、轴装式减速器、联体式减速器。

Selection of drum gear coupling tooth gear coupling, gear coupling crown gear axis to allow the two larger angular displacement, load-bearing capacity is relatively strong, and easy to install and adjust.

齿轮联轴器选用鼓形齿齿轮联轴器，鼓形齿齿轮联轴器允许两轴线有较大角位移，相对承载能力较强，并且易于安装调整。

Based on the one to one correspondence of the points on the tooth trace of plunge shaving cutter and the shaved gear, a method used to calculate the axial modification of the plunge shaving cutter when processing a crown gear is proposed.

用抛物线近似表示被剃齿轮的齿向鼓形量，采用一一对应映射方式将被剃齿轮的齿向鼓形量加到径向剃齿刀理论齿向线上各对应点的修形量上，得到加工鼓形齿轮的径向剃齿刀最终齿向修形量。

Bilayer gears, crown gears, bevel gear, wheel, Helical, Worm, safety clutch teeth, small modulus gear and steering gear copper server.

双层齿轮、皇冠齿轮、伞齿轮、滚轮、斜齿、蜗杆、安全离合齿、小模数铜齿及舵机伺服器等。

Owing to its cyclic symmetry the complex constraint method for the eigenproblems of cyclic symmetric structure is applied to calculating the eigenpairs of the helical gear structure.

根据齿轮结构的循环对称性，以仅含有一个完整轮齿的扇形子结构作为齿轮有限元计算模型，用计算循环对称结构特征值问题的复约束方法，通过求解一个扇形子结构的特征值问题得到整个齿轮结构的特征值和特征向量。

Moreover, they are not suitable for gears manufactured by different cutting tools. Based on gear generation principle, a new method to establish accurate 3D solid model of cylindrical gear by mechanism function of Pro/E is proposed. Taking the manufacture of spur-gear with pre-grinding hob as an example, this method is introduced in details and the accurate 3D solid model is set up.

以范成法加工齿轮的原理为理论基础，介绍在Pro/E平台下利用其机构模块的"轨迹曲线"功能精确构建各种刀具加工出来的渐开线圆柱齿轮齿廓曲线的方法，并以磨前滚刀加工直齿圆柱齿轮为例，详细介绍该方法的使用步骤，构建其精确的三维实体模型。

In order to put the rack-head-on-machine measuring large gear method into practice, key problems, such as measuring device precision fix to the machine tool. precision angle measurement. eccentric compensation.

为了实施大型齿轮齿条形刃边测头在机测量方案，文中针对测量装置在机床上的精密安装与定位、精密角度测量、齿轮安装偏心补偿及测量数据处理等，这些对于大型齿轮测量具有共性特征的关键技术进行了系统分析。

No clear conclusions can be made about the predictie alidity of specific measures, they found, except for criteria for the underuse of drugs for cardioascular disease.

除了心血管病不合理用药标准外，对于特定评价方法的预测效度没有明确的结论。

The third and last is that almost all of them, being infinite in number, have been impostures, and by idle and crafty brains merely contrived and feigned after the event past.

第三、即最后一点是：几乎所有这些不胜枚举的预言都是欺人之谈，都是在事件过后由无聊而狡猾的脑筋推测与凭空捏造的。