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Let's discuss some of the characteristics of racks

Updated:2013-08-14 10:19:13Clicks:896Times font size:T|T
In mechanical transmission, rack took various forms, the common types of spur rack rack and rack was also shaped Oblique teeth gear rack, with those of their transmission parts are spur gears and helical cylindrical gears, and herringbone cylindrical gear

In mechanical transmission, rack took various forms, the common types of spur rack rack and rack was also shaped Oblique teeth gear rack, with those of their transmission parts are spur gears and helical cylindrical gears, and herringbone cylindrical gear.

Here I will look for its main features:

(1) it is different from the gear, rack tooth profile is a straight line, so easy to imagine, each point on the tooth profile with the same pressure angle, and equal to the inclination angle of the tooth profile, we usually called the profile angle of this angle, national standard value specified as 20 °.

(2) Because of this characteristic of the teeth, the tooth top line on a line parallel to either the same pitch, the modulus.

(3) parallel to the tooth and the tooth thickness of the top space width is equal to the line dividing line is called also called line, this line is calculated baseline rack size.

    Rotation of the gear rack meshing one kinds of special form, not only to power transmission, torque can also be changed.


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