Design and Application of Drum Gear Coupling

Published: 2019-12-17

Coupling manufacturersAsk you to introduce, the design and application of drum gear coupling:

Drum gear couplingDesign and application of drum gearsCouplingThe structure is basically symmetrical.The two external gear sleeves can be press-fitted or hot-fitted on the shaft head through a key connection.The tooth surface of the external gear sleeve is a circular arc tooth along the length direction, which is profiled through a template.According to the direction of the tooth tip, the teeth on the outer gear sleeve are drum-shaped, and the tooth thickness gradually decreases from the center to the sides.The teeth on the inner ring gear that mesh with it are straight teeth.Because the tooth tip and tooth surface of the external gear sleeve are arc-shaped, the entire coupling is a double movable joint, which is flexible, so it can adapt to the large deflection angle between the two shafts, and can be lubricated with thin oil or dry oil.The drum gear coupling has compact structure, small size, light weight, small size, large moment of inertia, all parts are circular, and the unbalanced moment is small.

Drum gear couplingIt is one of the basic components in the machinery industry.It is widely used in transmissions with heavy loads, large adjustment errors, and large swing angles of the two axes.It can compensate the angular, axial and radial installation errors caused by the misalignment of the two connecting shafts, and allow the displacement of the two shafts.The direction of rotation can be clockwise or counterclockwise.It can be driven horizontally or vertically under the structure.It has great advantages in general machinery manufacturing.Especially in the following situations, it is particularly superior: intermittent motion machinery; machinery with heavy transmission load; large adjustment errors of the two connecting shafts, etc.Based on the above characteristics,Drum gear couplingIt is widely used in metallurgy, mining, steel rolling and other sectors.

Drum gear couplingThe bearing capacity, allowable deviation or swing angle of the tooth is directly related to the radius of curvature (curvature) of the tooth.From the perspective of improving the bearing capacity, the larger the radius of curvature, the better the allowable swing angle, and the smaller the radius of curvature. When the hob moves along the arc during the machining process, the better the arc of the drum-shaped tooth side is naturally formed, so The size of the radius The radius of the feed arc (the radius of the indexing arc RB) determines the radius of curvature of the tooth.

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