As long as the gear coupling is not half-coupled, the basic connecting edges are connected by an inner gear ring and an outer gear ring through relatively drilled bolts. After the tooth surface of the gear coupling is carburized and quenched, the bearing capacity is high; the main failure mode of the gear coupling is wear. After the forced thin oil lubrication is used, the wear of the tooth surface is greatly reduced, and the amount of wear is grease About 10% of the lubrication, the circulating thin oil can take away the rolling heat at the end of the roll and the heat generated by the friction of the gear teeth, effectively preventing the reduction of the allowable contact stress on the surface of the gear tooth material.
Under normal conditions, there will be no tooth breakage, which meets the requirements of the working characteristics of the continuous rolling mill; the gear coupling can meet the requirements of the rolling mill for roll shifting and is very convenient to expand and contract; it is safe to use, clean, and efficient. Gear coupling is composed of internal gear ring with the same number of teeth and flange half coupling with external teeth. The external teeth are divided into two types: straight teeth and drum teeth. The so-called drum teeth means that the external teeth are made into a spherical surface. The center of the spherical surface is on the gear axis. The tooth side clearance is larger than that of ordinary gears. Allows a larger angular displacement (compared to the straight tooth coupling), which can improve the contact conditions of the teeth, increase the torque transmission capacity, and extend the service life. The contact state along the tooth width when there is angular displacement. Gear couplings are suitable for connecting horizontal two coaxial transmission shaft systems.
Gear couplings are rigid-flexible couplings. Gear couplings are composed of internal gears with the same number of teeth and flange half couplings with external teeth. The external teeth are divided into straight teeth and drum-shaped Two tooth shapes. With the rapid development of modern industrial technology, more and more technical and economic indicators such as the bearing capacity, reliability, efficiency, circumferential speed, volume and weight of the drum gear coupling have been put forward. Drum gear couplings are developed on the basis of straight gear couplings to meet the technical requirements of large inclination, variable inclination, small size and high reliability. The structure of the gear coupling is basically symmetrical. From the direction of the tooth tip, the teeth on the outer gear sleeve are drum-shaped teeth, and the tooth thickness gradually decreases from the center to both sides. The teeth on the inner gear ring that mesh with it are straight teeth.
