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 us 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 very convenient.
2. Strong carrying capacity. Under the same outer diameter of the inner gear sleeve and the outer diameter of the coupling, the load-bearing capacity of the drum gear coupling is 15-20% higher than that of the straight gear coupling on average.
3. The transmission efficiency is as high as 99.7%.
4. The drum-shaped tooth surface provides the contact conditions between the inner and outer teeth, avoiding 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 noise and maintains 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.
Reasons for damage to the drum gear coupling:
1. The main reason is that the vibration damper of the host machine has sunk, which makes the shafting of the coupling appear asymmetry, thereby increasing the additional torque, so that the highly elastic coupling is in use A breakage accident occurred due to fever.
2. When couplings are used, 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.
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