Installation and working principle of serpentine spring coupling

Plum couplingIt is a kind of elastic coupling. It is widely used in the transmission of pulverized coal machine. It is widely used by customers, such as large amount, simple and cheap to use.Plum-shaped elastic coupling: The working principle is to install a whole plum-shaped elastic ring between the two convex claws of the same shape half coupling to realize the connection of the two half couplings.The materials are mainly cast steel and 45# steel; the connection forms include keyway connection, set screw connection, clamping connection, or a combination of two forms of connection.Axial plug-in installation.If radial installation is required, it can be made into a flange type to transmit power through the extrusion between the protruding claw and the elastic ring, and the relative deviation of the two shafts can be compensated by the elastic deformation of the elastic ring to achieve vibration reduction and buffering.There are many types to choose from, such as keyway type, clamping type, extended type, flange type and so on.

The plum blossom coupling of the pulverized coal machine is a flexible coupling with different structures and performances through the elastic deformation of metal elements to compensate for the relative deviation of the two shafts and to reduce vibration and buffer.

The temperature of the oil injection point of the serpentine spring coupling is ≥150℃, which can resist the action of centrifugal force. It has separation stability, no impurities, and does not corrode carbon steel and nitrile rubber. The lithium-based grease is better.Adequate grease is important for the work of the serpentine spring coupling, and it is recommended to check it once a year.Use a dry grease gun to inject grease until there is excess grease overflow in the hole.

Since the serpentine spring coupling is in point contact with the curved surface of the tooth, the coupling can obtain greater flexibility.It can be installed to work normally under conditions of radial, angular and axial deviations at the same time.The following methods are mainly followed during installation:

(1) Align the gap between the two-part couplings and the angular deviation. When installing, measure the gap between the two-part Lingsi serpentine spring couplings every 90°.

(2) Correction of radial deviation.Put a ruler on the two-part coupling, measure it every 90°, and check with a ruler, the radial deviation does not exceed 0.38mm.