The gear coupling has the function of compensating the relative offset of the two shafts in a certain angular direction, plus the long-distance operation of the central shaft, the operating environment temperature is -20-+80℃, and the nominal torque transmitted is 0.4-4500Kn.m. The gear coupling is suitable for connecting two horizontal coaxial lines and a transmission shaft system with a certain angular displacement. Gear couplings have small radial dimensions and large load-bearing capacity. They are often used in shafting transmissions under low-speed and heavy-duty conditions. High-precision and dynamically balanced gear couplings can be used for high-speed transmissions, such as gas turbine shafting. transmission.
Therefore, the gear coupling needs to work in a good and sealed state. Gear couplings have small radial dimensions and large load-bearing capacity. They are often used in shafting transmissions under low-speed and heavy-duty conditions. High-precision and dynamically balanced gear couplings can be used for high-speed transmissions, such as gas turbine shafting. transmission. By heating, the gap between the nut and the bolt is enlarged, the rust is also easy to fall off, and the bolt disassembly becomes easier. If none of the above methods work, only damage the bolts, cut or drill the bolts, and replace them with new bolts during assembly. The new bolt must have the same specifications as the original bolt. The new bolt used for the coupling of the high-speed equipment must also be weighed so that the new bolt has the same weight as the connecting bolt on the same set of flanges. The coupling should be selected. Factors to consider.
The gear coupling is suitable for connecting two horizontal coaxial lines and a transmission shaft system with a certain angular displacement. When the two shaft ends are far apart, the GCLZ type is suitable. Gear couplings are characterized by strong load-bearing capacity. Under the same inner gear sleeve outer diameter and larger coupling outer diameter, the load-bearing capacity of gear couplings is even 15-20 higher than that of straight gear couplings. %; Gear couplings can allow greater angular displacement (compared to straight-tooth couplings), which can improve the contact conditions of the teeth, increase the ability to transmit torque, and prolong the service life. Contact state.
Because the angular compensation of drum gear couplings is greater than that of straight gear couplings, drum gear couplings are widely used at home and abroad. Straight gear couplings are obsolete products, and those who choose should try not to use them. Gear coupling is composed of internal gear ring with the same number of teeth and flange half coupling with external teeth. 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 center of the spherical surface is on the gear axis, and the tooth side clearance is larger than that of ordinary gears. When the gear coupling is working, the two shafts produce relative angular displacement, and the tooth surfaces of the inner and outer teeth periodically slide relative to each other in the axial direction, which will inevitably cause tooth surface wear and power consumption.
