The unbalanced torque of the motor during start-up and operation can easily cause radial vibration of the collector device, which can cause uneven brush wear and shorten the service life of the brush; in the worst case, the collector ring and the brush will ignite due to poor contact. , Ablate the surface of the collector ring, and even damage the collector's diaphragm coupling; in the normal condition of the sensor equipment, the selected coupling is a rigid connection, which has a large sensation, and the concentricity is small and 0.2mm is greater than 0.05mm. Advocate the use of flexible connection.

　　Rigid connection can be used outside this scale.Secondly, when the torque sensor is in use, its equipment should be located between the power source and load of the two sets of couplings, and the power load and load equipment should be fixed firmly to prevent sensation, otherwise it will cause the appearance to fail to work normally.

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