Choosing a suitable sleeve coupling requires consideration of multiple key factors. The following are the main considerations when choosing a sleeve coupling:
The magnitude and direction of the relative displacement between the two axes:
When there is a need for radial displacement, angular displacement, or connection between two intersecting axes, a suitable type of sleeve coupling should be selected. For example, when the radial displacement is large, a slider coupling can be selected; Universal couplings can be used for connections with large angular displacement or intersecting axes.
Working speed and centrifugal force:
For high-speed transmission shafts, couplings with high balance accuracy should be selected to reduce issues such as wear, lubrication deterioration, and loose connections. Diaphragm couplings and other types with high balance accuracy are suitable for high-speed operation, and it is not advisable to use slide couplings with eccentricity.
Torque magnitude and properties:
Select the appropriate sleeve coupling based on the magnitude and nature of the torque to be transmitted, as well as the requirements for buffering and vibration reduction functions. For example, gear couplings can be used for high-power heavy-duty transmission; For transmission with severe impact loads or requirements to eliminate shaft torsional vibration, couplings with high elasticity can be selected.
Reliability and working environment:
Considering the reliability and working environment of couplings, couplings made of metal components and not requiring lubrication are usually more reliable. Couplings containing non-metallic components such as rubber are sensitive to temperature, corrosive media, and strong light, and are prone to aging.
Manufacturing, installation, maintenance, and cost:
On the premise of meeting the performance requirements, couplings that are easy to install and disassemble, easy to maintain, and low-cost should be selected. For example, rigid couplings have a simple structure and are easy to assemble and disassemble, making them suitable for low-speed, rigid transmission shafts; General non-metallic elastic element couplings are widely applicable to general medium and low power transmissions.
In summary, selecting a suitable sleeve coupling requires comprehensive consideration of multiple factors such as relative displacement between the two shafts, working speed, torque magnitude and properties, reliability and working environment, as well as manufacturing, installation, maintenance, and cost. By comprehensively evaluating these factors, it can be ensured that the selected sleeve coupling can meet practical application needs.