GⅡCL type-drum gear coupling

GⅡCL typeDrum gear couplingIt is a rigid coupling. The GⅡCL drum-shaped 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 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 clearance is larger than that of ordinary gears. Drum-shaped gear couplings allow Larger angular displacement (compared to spur gear coupling), the contact conditions of the teeth can be improved, the torque transmission ability is improved, and the service life is prolonged.The contact state along the tooth width when there is angular displacement. The GⅡCL drum gear coupling 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, high transmission efficiency, low noise and long maintenance period. It is suitable for low-speed and heavy-duty working conditions, such as metallurgy, mining, lifting and transportation industries, and also suitable for shaft transmission of various machinery such as petroleum, chemical, general machinery and so on.

The GⅡCL drum gear coupling structure is used for the direct connection of two horizontal concentric shafts. It is composed of two outer gear sleeves and an inner gear ring.The lubricating oil used in the coupling requires high viscosity and flowability, and it is commonly used as vehicle oil.For couplings that work in the open air, lubricating oil with lower viscosity should be used when the weather is cold.For general connection, all cylindrical shaft holes.

When the GⅡCL drum 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 needs Work in a good and sealed state. GⅡCL drum gear coupling has small radial dimension and large load capacity. It is often used in shafting transmission under low-speed and heavy-duty conditions. The high-precision and dynamically balanced gear coupling can be used for high-speed transmission, such as combustion engines. The shafting transmission of the steam turbine.Since 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 those who choose should try not to choose them.

Type I-the sealed end is a separate type, with a large tooth spacing, which can allow a large radial displacement, and can be connected with Y, J1, and Z1 shaft extensions.

Type Ⅱ-sealing end is integral, with small tooth spacing, relatively small radial displacement, compact structure, small moment of inertia, and can be connected with Y and J1 shaft extensions.

Main features of GⅡCL drum gear coupling (compared with straight gear couplings, it has the following characteristics):

1. Strong carrying capacity.Under the same outer diameter of the inner gear sleeve and the outer diameter of the coupling, the carrying capacity of the drum gear coupling is on average 15-20% higher than that of the straight gear coupling.

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 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 teeth very convenient.

5. High transmission efficiency.

Based on the above characteristics, at present, drum-shaped teeth have generally been substituted for straight-tooth couplings.

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