The NGCLZ type band brake drum gear coupling is suitable for connecting the two horizontal coaxial transmission shafts, transmitting the nominal torque to 355 ~ 100000KN. M,

The drum gear coupling is a flexible coupling, and the gear coupling is made up of the same inner tooth ring and the flange half coupling of the outer tooth. Divided into straight teeth and drum tooth outside two kinds of tooth shape, tooth is the so-called drum will made spherical outer teeth, spherical center on the gear axis, backlash is generally large gear, drum gear couplings allows a larger angular displacement (as opposed to straight tooth coupling), can improve the tooth contact conditions, improve the ability to transfer torque, prolong service life. The contact state along the tooth width in angular displacement. Radial, axial and angular axis deviation compensation ability, has a compact structure, small turning radius, large carrying capacity, high transmission efficiency, low noise and long maintenance cycle, especially suitable for the condition of low speed and heavy loading, such as metallurgy, mining, lifting transportation and other industries, can also be applied to petroleum, chemical industry, general machinery and other kinds of shaft transmission of machine

Type coupling at work, two relative angular displacement of the shaft of the internal and external gear tooth surface of periodic axial relative sliding, inevitable formation of tooth surface wear and power consumption, therefore, the coupling should be in good and sealing state work. Type coupling radial size is small, large carrying capacity, often used for shaft transmission of working condition of low speed and heavy loading, high precision and the dynamic balance of coupling can be used for high-speed transmission, such as gas turbine shaft transmission. Because the drum type coupling Angle is greater than the direct coupling to the compensation, both at home and abroad widely used drum type coupling, straight type coupling are eliminated products, choose those should not choose as far as possible.

The characteristics of drum gear coupling (compared with the straight gear coupling) :

1. Strong carrying capacity. The load capacity of drum gear coupling is 15 ~ 20% higher than that of the straight gear coupling in the same inner tooth casing and the coupling maximum outside diameter

2. The offset of angular displacement is large. When the radial displacement is equal to zero, the allowable angular displacement of the direct tooth coupling is 1o, while the allowable angular displacement of the drum gear coupling is 1o30 ', which is increased by 50%. Under the same modulus, teeth, and width of the teeth, the drum teeth are larger than the allowed angular displacement of the straight teeth.

3, drum gear tooth surface of internal and external tooth contact conditions improved, avoided under the condition of angular displacement straight tooth gear tooth edge extrusion, the disadvantages of stress concentration, and at the same time improve the tooth surface friction, wear, reduced the noise, maintenance cycle is long.

4. The outer teeth of the outer teeth are honked in shape, making it convenient for the inside and outer teeth to be removed.

5. The transmission efficiency is up to 99.7%.

Based on the characteristics of the current, it is widely used to replace the straight tooth coupling with drum teeth.