WGT type connecting middle sleeve drum gear coupling

The drum gear coupling belongs to the rigid-flexible coupling. The gear coupling is composed of an internal gear ring with the same number of teeth and a flange half coupling with external teeth.The external teeth are divided into two types of tooth shapes: 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 larger angular displacement (compared to the straight tooth coupling), the contact condition of the tooth can be improved, the ability of transmitting torque is improved, and the service life is prolonged.The contact state along the tooth width when there is angular displacement.It has the ability to compensate for axis deviations such as radial, axial and angular axis. It has the advantages of compact structure, small gyration radius, large carrying capacity, low transmission, low noise and long maintenance cycle. It is especially suitable for low-speed and heavy-duty conditions, such as metallurgy, It is also suitable for shafting transmission of various machinery such as petroleum, chemical industry, general machinery, etc. in mining, lifting and transportation industries.

When the gear coupling is working, the two shafts produce relative angular displacement, and the tooth surfaces of the internal and external teeth periodically slide relative to each other in the axial direction, which will inevitably cause tooth surface wear and power consumption. Therefore, the gear coupling must be in good harmony. Work in a sealed state.Gear couplings have small radial dimensions and large load-bearing capacity. They are often used in shafting transmission under low-speed and heavy-duty conditions. The dynamically balanced gear coupling can be used for high-speed transmission, such as gas turbine shaft transmission.Because the angular compensation of drum gear couplings is greater than that of straight gear couplings, drum gear couplings are widely used. Straight gear couplings are obsolete products and should not be used as much as possible.

The characteristics of the drum gear coupling (compared with the straight gear coupling, it has the following characteristics):

1. Strong carrying capacity.Under the same outer diameter of the inner gear sleeve and the large 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.

2、角位移补偿量大。当径向位移等于零时,直齿式联轴器的许用角位移为1o,而鼓形齿式联轴器的许用角位移为1o30',提高50%。在相同的模数、齿数、齿宽下,鼓形齿比直齿允许的角位移大,

3. The drum-shaped tooth surface makes the contact conditions of the inner and outer teeth avoid the disadvantages of squeeze the edge of the straight tooth tooth under the condition of angular displacement and stress concentration. At the same time, it reduces the friction and wear of the tooth surface, reduces noise, and maintains 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%.

Hangzhou WGT type connecting middle sleeve drum gear coupling　Hangzhou WGT type connecting middle sleeve drum gear coupling