Author: Foshan Electrical and Mechanical center

        Large-scale machinery and equipment for the two-axis adjustment more difficult, should choose to use durable and easy to replace wearing parts of the coupling. Metal elastic element of flexible couplings in general than non-metallic flexible coupling elastic element long life. Require lubrication and the use of non-durable sealing couplings, will increase the maintenance workload. For long-term continuous operation and high economic efficiency of the occasion, such as China's metallurgical enterprises in the high-speed end mill drive system, now widely used in the gear coupling, gear coupling Although theoretically transmit torque, but must be lubrication and seal durable good conditions to work.

    The main consideration to select the desired coupling transmission shaft rotational speed level, the size of the load, the two parts are coupled the mounting accuracy, etc., various kinds of coupling characteristics of the reference rotation stability, price, etc., to select a combination of coupling type.

    You may consider the following specific choice:

    1. Size and nature of the required torque transmission and vibration function for buffering requirements. For example, heavy-duty power transmission, the choice of gear coupling. Severe shock loads or require the elimination of drive shaft torsional vibration, the choice of tire type couplings.

    2. Due to manufacturing, installation, deformation under load and temperature changes and other reasons, when the installation and adjustment, it is difficult to maintain a strict two-axis precision alignment. There is a certain degree of x, Y direction displacement and skew angles CI. When the radial displacement of the larger, optional Oldham coupling, the angular displacement of the two axes intersect larger or join optional universal couplings. When the course of their work have a greater additional two axes relative displacement, flexible couplings should be used.

    3. Coupling low operating speed and centrifugal force caused by the size. For high-speed shaft, the balance should be used in high precision couplings, such as a diaphragm couplings, etc., but should not use the presence of eccentric slider couplings.