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A gear coupling is a mechanical device for transmitting torque between two shafts that are not collinear. It consists of a flexible joint fixed to each shaft. The two joints are connected by a third shaft, called the spindle.
Each joint consists of a 1:1 gear ratio internal/external gear pair. The tooth flanks and outer diameter of the external gear are crowned to allow for angular displacement between the two gears. Mechanically, the gears are equivalent to rotating splines with modified profiles. They are called gears because of the relatively large size of the teeth.
Gear couplings and universal joints are used in similar applications. Gear couplings have higher torque densities than universal joints designed to fit a given space while universal joints induce lower vibrations. The limit on torque density in universal joints is due to the limited cross sections of the cross and yoke. The gear teeth in a gear coupling have high backlash to allow for angular misalignment. The excess backlash can contribute to vibration.
Gear couplings are generally limited to angular misalignments, i.e., the angle of the spindle relative to the axes of the connected shafts, of 4-5°. Universal joints are capable of higher misalignments.
Advantages of Tanso gear coupling
1.Lowest price based on large scale production.
2.High and stable quality level.
3.Widely used in various mechanical and hydraulic fields.
4.Compensation for axial, radial and angular misalignment.
5.Convenient axial plugging assembly.
6.No brittlement at low temperature.
7.Good slippery and frictional properties.
8.Resistance to chemical corrosion.
9.Rich experience working with big companies in this field.
Type I – sealed end is a separate type, the tooth spacing is large, can allow a large radial displacement, and can be connected with the Y, J1, Z1 type shaft extension.Type II – The sealed end is integral, with small tooth spacing, relatively small radial displacement, compact structure, small moment of inertia, and can be coupled with Y and J1 shaft extensions.
The drum-shaped gear coupling has the advantages of radial, axial and angular equiaxed deviation compensation, and has the advantages of compact structure, small radius of gyration, large carrying capacity, high transmission efficiency, low noise and long maintenance period. Low-speed heavy-duty conditions, such as metallurgy, mining, lifting and transportation, etc., are also applicable to shafting transmission of various types of machinery such as petroleum, chemical, general machinery, and drum-shaped gear couplings are rigid flexible couplings. The toothed coupling is composed of a ring gear with the same number of teeth and a flanged half coupling with external teeth. The external teeth are divided into two types of teeth: straight teeth and drum teeth. The so-called drum teeth are made of spherical teeth, the center of the spherical surface is on the gear axis, the tooth side clearance is larger than the general gear, and the drum gear coupling can be Allowing for larger angular displacements (relative to spur gear couplings) improves tooth