CL type gear coupling

CL type gear coupling: drum gear coupling is a rigid-flexible coupling. The gear coupling is composed of an inner gear ring with the same number of teeth and a flange half coupling with external teeth. .The 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 spherical surface is on the gear axis. The tooth side is larger than that of ordinary gears. Large angular displacement (compared to straight tooth couplings), the contact conditions of the teeth can be improved, the ability to transmit torque is improved, and the service life is extended.The contact state along the tooth width when there is an angular displacement.It has the ability to compensate for axis deviation in radial, axial and angular directions, and has the advantages of compact structure, small gyration radius, large carrying capacity, low transmission, low noise and long maintenance period. It is especially suitable for low-speed and heavy-duty conditions, such as metallurgy, Shafting gear couplings in mining, lifting and transportation industries, and also suitable for various types of machinery such as petroleum, chemical, general machinery, etc., when working, the two shafts produce relative angular displacements, and the tooth surfaces of the inner and outer teeth are periodically used as the shaft. Sliding relative to each other will inevitably cause tooth surface wear and power consumption. 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 shaft transmissions under low-speed and heavy-duty conditions. The dynamically balanced gear couplings can be used for high-speed transmissions, such as gas turbine shaft transmissions.

The characteristics of drum gear couplings (compared to straight gear couplings with the following characteristics):

1. Strong carrying capacity.The load-carrying capacity of drum gear couplings is 15-20% higher than that of straight gear couplings on average.

2. Large angular displacement compensation.When the radial displacement is equal to zero, the allowable angular displacement of the spur gear coupling is 1o, and the allowable angular displacement of the drum gear coupling is 1o30', an increase of 50%.Under the same modulus, number of teeth, and tooth width, the allowable angular displacement of the drum gear is larger than that of the straight tooth.

3. 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 maintains it. The cycle is long.

4. 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.

5. The transmission reaches 99.7%.

Based on the characteristics of warp, drum-shaped gears have generally been used to replace straight gear couplings.

江苏CL type gear coupling　Shandong CL type gear coupling