How To Choose Reducer Coupling?

Most couplings have been standardized or standardized. The designer’s task is to choose, not design. The basic steps for selecting a coupling are as follows:
Choose the type of coupling according to the size of the transmitted load, the speed of the shaft, the installation accuracy of the two parts to be connected, etc., refer to the characteristics of various couplings, and select a suitable coupling type.
The following points can be considered when making specific choices:
1. The size and nature of the torque to be transmitted in the gear reducer and the requirements for the buffering and damping function. For example, for high-power and heavy-duty transmissions, gear couplings can be selected; for transmissions that require severe impact loads or to eliminate shaft torsional vibration, tire couplings and other couplings with high elasticity can be selected.
2. The working speed of the coupling and the centrifugal force caused by it. For high-speed transmission shafts, couplings with high balance accuracy, such as diaphragm couplings, should be selected, rather than eccentric slider couplings.
3. The magnitude and direction of the relative displacement of the two axes. When it is difficult to maintain strict and precise alignment of the two shafts after installation and adjustment, or when the two shafts will have a large additional relative displacement during the working process, a flexible coupling should be used. For example, when the radial displacement is large, you can choose a slider coupling, and when the angular displacement is large or the connection of two intersecting shafts, you can choose a coupling.
4. The reliability and working environment of the coupling. Generally, couplings made of metal elements that do not require lubrication are more reliable; couplings that require lubrication are easily affected by the perfect degree of lubrication and may pollute the environment. Couplings containing non-metallic components such as rubber are more sensitive to temperature, corrosive media and strong light, and are prone to aging.
5. The manufacturing, installation, maintenance and cost of the coupling. Under the premise of meeting the convenience of use, couplings that are convenient for assembly and disassembly, simple for maintenance, and low cost should be selected. For example, the rigid coupling is not only simple in structure, but also easy to assemble and disassemble, and can be used for low-speed, high-rigidity drive shafts. General non-metallic elastic element couplings (such as elastic sleeve pin couplings, elastic pin couplings, plum-shaped elastic couplings, etc.), due to their good comprehensive capabilities, are widely used in general small and medium-sized Power transmission.
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