Gears are mechanical parts that mesh with each other and have teeth. They are widely used in mechanical transmission and even in the entire mechanical industry, and in daily life. The application of gears has a long history and is still an indispensable and important part in the mechanical industry. Next, the guide screw manufacturer will explain to you the classification and main applications of gears and racks.

齿轮齿条工作原理：

Working principle of gear and rack:

齿轮齿条工作原理是将齿轮的回转运动转变为齿条的往复直线运动，或将齿条的往复直线运动转变为齿轮的回转运动。

The working principle of gears and racks is to transform the rotational motion of gears into the reciprocating linear motion of racks, or to transform the reciprocating linear motion of racks into the rotational motion of gears.

齿轮分类：

Gear classification:

平行轴齿轮

Parallel shaft gear

正齿轮&齿条

Spur gear&rack

内齿轮&斜齿齿轮

Internal gear&helical gear

斜齿齿条&人字齿轮

Helical Rack&Herringbone Gear

交错轴齿轮

Staggered shaft gear

直齿锥齿轮

Straight bevel gear

弧齿锥齿轮&零度锥齿轮

Spiral bevel gear&zero degree bevel gear

交错轴齿轮

Staggered shaft gear

圆柱蜗杆副&交错轴斜齿齿轮

Cylindrical worm gear pair&staggered helical gear\

其他特殊齿轮

Other special gears

鼓型蜗杆副&准双曲面齿轮

Drum worm pair&quasi hyperboloid gear

面齿轮

Face gear

齿轮齿条机构：

Gear and rack mechanism:

齿轮齿条机构是由齿轮和齿条构成的，齿轮前面我们有很详细的讲解。齿条分直齿齿条和斜齿齿条，齿条的齿廓为直线而非渐开线，相当于分度圆半径为无穷大圆柱齿轮。

The gear and rack mechanism is composed of gears and racks, which we have explained in detail before. The gear rack is divided into straight tooth rack and helical tooth rack. The tooth profile of the gear rack is a straight line rather than an involute, which is equivalent to a cylindrical gear with an infinite radius of the indexing circle.

齿条的主要特点

The main characteristics of the rack

由于齿条齿廓为直线，所以齿廓上各点具有相同的压力角，且等于齿廓的倾斜角，此角称为齿形角，标准值为20°。

Since the rack tooth profile is a straight line, all points on the tooth profile have the same pressure angle, which is equal to the inclination angle of the tooth profile. This angle is called the tooth profile angle, and the standard value is 20 °.

与齿顶线平行的任一条直线上具有相同的齿距和模数。

Any straight line parallel to the tooth crest line has the same tooth pitch and modulus.

与齿顶线平行且齿厚等于齿槽宽的直线称为分度线（中线），它是计算齿条尺寸的基准线。

The straight line parallel to the tooth crest line and with a tooth thickness equal to the width of the tooth groove is called the indexing line (centerline), which is the reference line for calculating the size of the gear rack.

齿轮齿条传动的应用范围：

The application range of rack and pinion transmission:

1、适用于快速、精准的定位机构

1. Suitable for fast and accurate positioning mechanisms

2、适用于重负荷、高精度、高刚性、高速度和长行程的CNC机床、加工、切割机械、焊接机械等

2. Suitable for CNC machine tools, machining centers, cutting machinery, welding machinery, etc. with heavy loads, high precision, high rigidity, high speed, and long stroke

3、适用于工厂自动化快速移栽机械、工业机器人手臂抓取机构等

3. Suitable for factory automation, rapid transplanting machinery, industrial robot arm grasping mechanisms, etc

齿轮齿条的分类及主要应用相关内容就讲解到这里了，您对此有怎样的疑惑或者需求，欢迎来我们网站http://www.jngongrun.com咨询！

That's all for the classification and main applications of gears and racks. If you have any doubts or needs, please feel free to come to our website http://www.jngongrun.com consulting service

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