Features of the gear coupling
The gear coupling is composed of the same inner ring and the flange half coupling of the outer tooth. Divided into straight teeth and drum tooth outside two kinds of tooth shape, tooth is the so-called drum will made spherical outer teeth, spherical center on the gear axis, backlash is generally large gear, drum gear couplings allows a larger angular displacement (as opposed to straight tooth coupling), can improve the tooth contact conditions, improve the ability to transfer torque, prolong service life. The contact state along the tooth width in angular displacement.
Low coupling at work, two relative angular displacement of the shaft of the internal and external gear tooth surface of periodic axial relative sliding, inevitable formation of tooth surface wear and power consumption, therefore, the coupling should be in good and sealing state work. Type coupling radial size is small, large carrying capacity, often used for shaft transmission of working condition of low speed and heavy loading, high precision and the dynamic balance of coupling can be used for high-speed transmission, such as gas turbine shaft transmission. Because the drum type coupling Angle is greater than the direct coupling to the compensation, both at home and abroad widely used drum type coupling, straight type coupling are eliminated products, choose those should not choose as far as possible.
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