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Drum-shaped gear coupling has the characteristics of high rigidity and flexibility. It is not suitable for equipment that requires vibration reduction and strict cushioning. Let's briefly understand its advantages.
1. 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 convenient.
2. Carrying.Under the same outer diameter of the inner gear sleeve and the outer diameter of the coupling, the carrying capacity of the drum gear coupling is on average 15-20% higher than that of the straight gear coupling.
3. The transmission reaches 99.7%.
4. The drum-shaped tooth surface makes the contact conditions of the inner and outer teeth avoid the disadvantages of squeezing the edge of the straight tooth and stress concentration under the condition of angular displacement. At the same time, it reduces the friction and wear of the tooth surface, reduces the noise and maintenance The cycle is long.
5. Large angular displacement compensation.When the radial displacement is equal to zero, the allowable angular displacement of the spur gear coupling is 1º, while the allowable angular displacement of the drum gear coupling is 1º30, which is increased by 50%. In the same modulus, number of teeth, When wide, the angular displacement of the drum gear is larger than that of the straight tooth.
Causes of damage to the drum gear coupling:
1. The main reason is that the vibration damper of the main engine has sunk, which makes the shafting of the coupling appear asymmetry, thereby increasing the additional torque, which makes the highly elastic coupling in use When there is a breakage accident due to fever.
2. When using couplings, the equipment in the shafting system, such as diesel engines, gearboxes, shafting and high-elastic couplings, must complement each other in design and use, and the level of design and manufacturing is relatively high. , The quality of the ship designed in this way is also very high.