gears

The gear is an element of mechanical transmission, consisting mainly of teeth on a rim that can continuously enter into the engagement for transmission and power .} gear usually adheres in pairs, and when one rotates, the other rotates with it, thus changing the direction of the transmission, the direction of rotation, the speed of rotation, the speed of rotation . there are many types of types Gear gears, including cylindrical, conical and worm, among which cylindrical transmissions are the most common type . gear gears are widely used in industrial production, and their importance for the entire area of mechanics is obvious .}}}}}}}}

The gears can be classified according to the shape of the teeth, the shape of the gears, the shape of the line of teeth, the surface on which the teeth of the gear are located, and the method of manufacture .}}}}

The tooth of the gear tooth includes the tooth profile curve, the angle of pressure, the height of the tooth and displacement . Evolvent transmission are relatively easy to manufacture, therefore, among the currently applied programs, the invalid majority make up the absolute majority, while cycloidal and arc transmissions are rarely used .}}}}}}}}}}

In the corner of the transmission pressure with small pressure angles, they have less bearing capacity; While gears with large pressure angles have a higher bearing capacity, but the load on the bearing increases with the same torque of transmission, so they are used only in special cases . The heights of gear of gears are standardized, and the standard heights of teeth . are usually used and are used in various types of mechanical equipment .

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