Maintenance method of drum gear coupling: the necessary guarantee for the reliable operation of drum gear coupling is also to reduce wear.Under the conditions of sufficient tooth root bending strength and tooth surface contact strength, the tooth width should be determined with a larger degree of overlap, and the tooth width should not be blindly increased to avoid unnecessary increase in the structural size.The general tooth width factor is 8-14.The width of the small tooth should be determined by the allowable root stress, and the width required for the displacement of the force point along the tooth width caused by the inclination angle between the shafts should also be considered.An important way to increase the service life of drum-shaped gear couplings.The tooth width coefficient affects the tooth root bending strength and tooth surface contact strength of the tooth. The larger the tooth width coefficient, the greater the strength of these two items. The tooth width coefficient affects the coincidence degree. When the tooth width coefficient is less than a certain value, its value The increase of, has a greater impact on the increase in coincidence, and when it is greater than this certain value, the increase in device value has a smaller impact on the increase in coincidence. For drum-shaped gear couplings with arc drum curve, the tooth width still determines the drum The radius of the degree circle is also a parameter of the backlash. The larger the tooth width, the larger the radius of the drum circle, and the larger the backlash required. Therefore, the following two requirements are required: Drum-shaped drum-shaped gear coupling The tooth surface improves the contact conditions of the inner and outer teeth, avoids the disadvantages of squeeze and stress concentration at the edge of the straight tooth under the condition of angular displacement, and at the same time improves the friction and wear of the tooth surface, reduces the noise, and the maintenance cycle long.The tooth end of the outer gear sleeve is in the shape of a horn, which makes the assembly and disassembly of the inner and outer gears very convenient.

　　The drum gear coupling is a rigid-flexible coupling. The drum gear coupling is composed of an inner gear ring with the same number of teeth and a flange half coupling with external teeth.The external teeth are divided into straight teeth and drum teeth. The so-called drum teeth means that the external teeth are made into a spherical surface. The spherical surface is on the gear axis. The tooth side clearance is larger than that of ordinary gears. Drum-shaped gear couplings allow Larger angular displacement (compared to the straight tooth coupling) can improve the contact conditions of the teeth, increase the torque transmission capacity, and prolong the service life.The contact state along the tooth width when there is an angular displacement.It has the ability to compensate for axis deviation in radial, axial and angular directions. It has the advantages of compact structure, small gyration radius, large carrying capacity, high transmission efficiency, low noise and long maintenance period. It is especially suitable for low-speed and heavy-duty conditions, such as Metallurgy, mining, lifting and transportation industries, and also suitable for shafting transmission of various machinery such as petroleum, chemical industry, general machinery and so on.

　　When the drum gear coupling is working, the two shafts produce relative angular displacement, and the tooth surfaces of the internal and external teeth periodically slide relative to each other in the axial direction, which will inevitably cause tooth surface wear and power consumption. Therefore, the drum gear coupling requires Work in a good and sealed state.Drum-shaped gear couplings have small radial dimensions and large load-bearing capacity. They are often used in shaft transmissions under low-speed and heavy-duty conditions. High-precision and dynamically balanced drum-shaped gear couplings can be used for high-speed transmissions, such as combustion engines. The shafting transmission of the steam turbine.Because the angular compensation of drum-shaped gear couplings is greater than that of straight drum-shaped gear couplings, drum-shaped gear couplings are widely used both inside and outside.