齿形

From the experiment on multitooth mesh, several valuable results are obtained. It is verified that the crown gear coupling with optimum crowning curve has advantage in transmission properties.

进行了鼓形齿联轴器多齿啮合实验，得出若干有价值的实验结论，并通过实验，验证了优化鼓度曲线的鼓形齿联轴器具有优越的传动特性。

In order to solve the theoretical backlash problem of the teeth, which is crucial to the number of actual contact pairs of teeth in the research on multi teeth contact of crown gear coupling , the theoretical backlash of teeth flank with the concept of backlash angle is first time defined and described in the paper, and the minimization model of its variables is set up.

为解决鼓形齿联轴器多齿接触研究课题中的实际接触齿对数的关键技术轮齿理论间隙的问题，首次用间隙角的概念对轮齿理论间隙作了定义和描述；建立了该变量的极小化模型；对一鼓形齿联轴器作了实际优化计算，得出了鼓形齿联轴器多齿接触研究中计算实际接触齿对数所需的不同啮合状态下的最小间隙角

The characteristic of teeth meshing and,further,circumferential load distribution of non-conjugate crown gear coupling are analyzed,by which an effective method is given for analyzing the effect of obliqueness on the load distribution of engaged teeth in crown gear coupling .

分析了轧机用非共轭鼓形齿联轴器的齿面啮合特征，并在此基础上进一步研究齿间周向载荷的分配规律，给出一种分析非共轭鼓形齿联轴器工作倾角对其齿间载荷分配影响的有效方法。

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。

Based on data,aims to set up the mathematical model of the working practice of the cutter gear used on the coal mining machine working in coal layers and the force bearing of the pick-shaped cutter gear.

以试验数据为基础，对采煤机镐形截齿实际工况的煤层和镐形截齿受力建立数学模型；对镐形齿受力进行计算机模拟，且模拟的曲线反映截齿随不同参数的变化。

After analyzing the curvature of the forming surface and the relativ emotion between the forming surface and the curved tooth surface during envelope tooth cutting,the authors work out the equations for calculating the induced normal curvature and geodesic deflection,the principal curvature and direction of the tooth surface of this kind of circular-arc gear .

通过对产形面曲率和包络切齿时产形面与齿曲面相对运动关系的分析，推导出双向圆弧齿轮齿面的诱导法曲率、诱导短程挠率和齿面的主曲率、主方向等计算公式。

Leaves subsessile or lower ones with petioles 1-2 mm; cauline blade ovate to lanceolate to lanceolate-elliptic, spatulate near base, 1-2.5 × 0.5-1 cm, subglabrous with faintly strigillose margin and midvein, base cuneate to broadly so, margin denticulate with 3-9 teeth per side, apex acute to obtuse.

叶近无柄或下部的具叶柄1-2毫米；茎生叶卵形的到披针形到披针形椭圆，匙形的近基部， 1-2.5 * 0.5-1 厘米，近无毛微弱具短糙伏毛的具边缘和中脉，基部楔形到宽如此，边缘具小齿具齿每边3-9，先端锐尖到钝。

LiWei INC was founded in 1999, integrating scientific research, design, production, operating in one, professional production and sale of Rock Drilling, mining accessories, engineering tools, rock drilling tools, milling machine milling teeth, milling Machine Cutter, road Mixer Cutter, coal mine cut teeth with various types of Shearer with conical teeth, knife-shaped cross-sectional tooth, boring machine with boring tooth, shield knives, metro shield machine shield configuration tools and various types of mining bits, rock drills, anchor drills, rotary drilling engineering cut-off teeth, using rotary drilling rig Rotary Drilling teeth, tooth roadheader, Rotary Drilling teeth, bucket teeth, tooth Block, and a variety of Rock Drilling Bits, including word, cross drill head, the ball tooth drill head, drill sets, drill tail, drill rod and so on.

香港立威刀具有限公司始建于1999年，集科研、设计、生产、经营于一体，专业生产和销售凿岩钎具、矿山配件、工程工具、岩土钻掘工具、铣刨机用铣刨齿、铣刨机刀头、路拌机刀头、煤矿用截齿、各种型号的采煤机用镐形截齿、刀形截齿、掘进机用掘进齿、盾构刀具、地铁盾构机用盾构刀具及各种型号的矿用钻头、岩石钻头、锚杆钻头、工程用旋挖截齿、旋挖钻机用旋挖齿、掘进机截齿、旋挖齿、斗齿、齿座和各种凿岩钎具包括一字钎头、十字钎头、球齿钎头、钎套、钎尾、钎杆等。

Drum-shaped teeth coupling is inelastic coupling components, mainly by the ring gear and drum-shaped teeth, tooth bushings, and other major component parts.

鼓形齿式联轴器属于无弹性元件联轴器，其主要由内齿圈和鼓形齿外齿轴套等主要零件组成。

The 3D precise geometrical model of a straight bevel gear was established by using UG with the sphere involutes.

在UG中以球面渐开线方法建立了精确的直齿圆锥齿轮三维几何模型，采用圆弧曲线对直齿圆锥齿轮齿廓进行修形，给出了最大修形量、修形圆弧中心和半径的确定方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。