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Coupling function and deviation description

Author: Ever-Power Coupling Release Date: 2016-03-09 08:51 Click:
Coupling is a component that connects two shafts axially and transmits torque and movement. It has the ability to compensate for the deviation of the two shafts. In order to reduce the vibration of the mechanical transmission system and reduce the impact peak load, the coupling should also have buffering Shock absorption performance.The coupling sometimes also has an overload protection function.

  The function of the coupling
  Coupling is a component that connects two shafts axially and transmits torque and movement. It has the ability to compensate for the deviation of the two shafts. In order to reduce the vibration of the mechanical transmission system and reduce the impact peak load, the coupling should also have buffering Shock absorption performance.The coupling sometimes also has an overload protection function.
  Heat treatment and machining requirements:
  Post-forging heat treatment: Forgings should be pre-heated after forging to improve the structure and workability.
  Rough machining: Rough machining should be carried out before heat treatment of forging properties, leaving a small machining allowance.
  Performance heat treatment: Forgings should be quenched and tempered to achieve the required performance.
  Machining after performance heat treatment: After the mechanical properties are qualified, the forging is processed to the size and surface roughness specified by the drawing provided by the buyer.But if the cutting amount of any surface exceeds 5mm, the forging shall undergo stress relief treatment.
  Stress relief treatment: The stress relief temperature of the forging should be 30° lower than the final tempering temperature. After heat preservation, it should be cooled slowly.If the stress relief temperature is not lower than the final tempering temperature of 30°, the forging shall be subjected to mechanical performance test again after stress relief.
  The elastic coupling can transmit torque and rotation angle, while absorbing shaft installation deviation. When the installation deviation exceeds the allowable value, it may cause vibration or shorten the life of the coupling. Therefore, ensure that the deviation is adjusted appropriately.
  There are three types of shaft deviations, namely radial deviation, angular deviation, and axial deviation.Please adjust the deviation so that it is lower than the allowable value listed in the specification table of each product
  Deviation does not only occur in the work process of equipment assembly, but vibration, thermal expansion, bearing wear, etc. during the work process will cause deviations. Therefore, it is recommended to adjust the axial deviation to less than 1/3 of the maximum value.
  Let's talk about the deviation of these three axes:
  Radial deviation: When the two shafts are installed, the parallel single center lines are not on the same straight line. The deviation produced at this time is called the radial deviation.
  Angular deviation: During installation, the deviation caused by the center lines of the two shafts at an angle to each other is called angular deviation.
  Axial deviation: The deviation of reciprocating micro-motion between shafts due to mechanical reasons is called axial deviation.
 

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