The drum tooth coupling belongs to the rigid flexible coupling, which has the ability to compensate for radial, axial, and angular axis deviations. Compared with the CL type straight tooth coupling, it has the advantages of compact structure, small turning radius, large bearing capacity, low transmission and noise, and long maintenance cycle
Classification of drum tooth couplings:
GCLD type drum tooth coupling (JB/T 8845.1-2001)
WGP type drum tooth coupling with brake disc (JB/T7001-93)
WGC type vertical installation drum tooth coupling (JB/T7002-93)
WGZ type drum tooth coupling with brake wheel (JB/T7003-93)
WGT type drum tooth coupling with intermediate sleeve (JB/T7004-93)
TGL type - Nylon inner ring gear drum type coupling (JB/T5514-91)
WGJ type - Intermediate shaft drum type coupling (JB/T8821-1998)
NGCL type - Brake wheel type (JB/ZQ4644-97)
NGCLZ type - Brake wheel type (JB/ZQ4645-97)
WG type - Brake wheel type (JB/ZQ4186-97)
CL type toothed coupling
CLZ Type tooth coupling
NL type - Nylon inner ring gear drum tooth coupling (DB 3202-87)
The characteristics of drum tooth couplings:
1. Load bearing.
. Under the same outer diameter of the inner gear sleeve and the large outer diameter of the coupling, the bearing capacity of the drum tooth coupling is on average 15-20% higher than that of the straight tooth coupling2. The angular displacement compensation is large. When the radial displacement is equal to zero, the allowable angular displacement of the straight tooth coupling is 1& Ordm;, The allowable angular displacement of the drum tooth coupling is 1& Ordm; 30&# 39&# 39;, Increase by 50%, under the same modulus, number of teeth, and tooth width, the allowable angular displacement of drum teeth is greater than that of straight teeth3. The drum shaped tooth surface creates contact conditions between the inner and outer teeth, avoiding the drawbacks of compression and stress concentration at the edge of straight teeth under angular displacement conditions. At the same time, it reduces friction and wear on the tooth surface, reduces noise, and has a long maintenance cycle4. The outer gear sleeve has a horn shaped tooth end, making it easy to install and remove the inner and outer teeth5. Transmission reaches 90%. Based on the above characteristics, drum teeth have been widely used instead of straight tooth couplings. The variety and specifications of drum tooth couplings shall comply with the corresponding standards. The drum tooth coupling has high rigidity, flexibility, and no elasticity, so it is not suitable for machinery that requires strict vibration reduction, buffering, and two axis alignment requirements
