In recent years, drum gear couplings in many industries in my country have been widely used, from high-speed turbine units to medium and low-speed heavy metallurgy, mining, lifting and transportation equipment, and a large number of applications have also formed their own standard series. Rich experience in manufacturing has also been accumulated. Gear coupling is composed of internal gear ring with the same number of teeth and flange half coupling with external teeth. Gear coupling is a new type gear coupling developed by digesting and absorbing foreign advanced technology on the basis of spur gear coupling. It is composed of an outer gear sleeve with a drum-shaped tooth thickness and a matching inner gear ring that connects two shafts. It is suitable for heavy load and two-axis transmission that requires axis displacement compensation.
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. In recent years, drum gear couplings in many industries in my country have been widely used, from high-speed turbine units to medium and low-speed heavy metallurgy, mining, lifting and transportation equipment, and a large number of applications have also formed their own standard series. Rich experience in manufacturing has also been accumulated. Under normal circumstances, it is required that the two shafts to be connected are concentric, and it is impossible to continue to maintain the concentric state during operation. Because of installation errors, bearing wear, force deformation, foundation sinking, etc., the axis produces radial and angular directions. To displacement.
The drum gear coupling has the characteristics of compensating the above displacement, reduces the additional load caused by the axis displacement, improves the working stability and reliability of the transmission device, and thus prolongs the service life of the transmission device. It can be used to connect heavy-duty and vibrating machines with mechanical shaft drive. Coupling A half-moving half-coupling with an internal gear, which forms a closed circuit with the gear. The large width of the radial groove is slightly smaller than the thickness of the elastic element bundle to ensure that the elastic element is pre-tightened after being installed in the radial groove.
As the distance between the gears decreases, the rigidity of the coupling will increase. The elastic element will work in a bent state, and the sheet bundle will be relatively sheared. This will make the coupling obtain some non-linear characteristics to ensure that the coupling has large elastic vibration damping performance. When the driving coupling rotates, the gear interacts with the gear, and the gear warp shaft transmits torque to the driven half coupling. At this time, the two half couplings will work under certain relative rotation conditions. When the coupling stops working, the gear will return to the initial position under the action of the elastic element.
