Installation and use of serpentine spring coupling

Published: 2017-12-15

The serpentine spring coupling is a metallic coupling with a structure that relies on a serpentine spring leaf to transmit torque.It has good damping performance, long service life, large load variation, starting; transmission, operation, low noise, good lubrication, simple structure, convenient assembly and disassembly, and large installation deviations are allowed.Although the serpentine spring coupling has so many features and advantages, many brothers have changed it.As a user unit of the serpentine spring coupling, our company did not follow the example, but used it, and received good results. The two 2D-T3/34 high-pressure pumps have been running smoothly since they were put into use in 13.5.Pay attention to the following aspects in use.

1 Installation and alignment, control reasonable deviation

Although the serpentine spring coupling allows a large installation deviation, it should also be within the specified value during installation

(1) Align the gap and angular deviation between the two-lobe couplings. When installing, measure the gap between the two-lobe couplings every 90°, and the difference between the large value and the small value does not exceed 0.38mm.

(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.

2 Choose suitable grease

The temperature of the oil injection point is ≥150℃, which can resist centrifugal force, has separation stability, no impurities, and does not corrode carbon steel and nitrile rubber lithium-based grease.

3 Fill enough grease

Adequate grease is important for the work of the 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.