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1. slip ring short circuit
When the slip ring is used for a short period of time, it may be that the slip ring life is up, or the slip ring is overloaded, causing the slip ring to burn off. In general, if a new slip ring is short-circuited, it is caused by a problem with the inner insulating material of the slip ring or a direct short circuit between the brush wire and the brush wire, and the wire is broken. This must be tested using the exclusion method.
2. the signal slip ring interference is too large
The slip ring can be used to transmit power and signals, and interference between the power supply and the signal is divided into internal interference and external interference. For the designer to know the type of signal, special signals must be used for internal and external shielding for special signals. For the slip ring that has been formed, it is found that the slip ring signal is disturbed, and the external wire can be shielded by itself. If it is still impossible to solve, the internal structure of the slip ring can only be redesigned.
3. The slip ring does not rotate smoothly:
Excluding the problem of slip ring assembly and bearing selection, the cause of such problems is usually that the customer did not propose seismic requirements when selecting the slip ring, and the environment used has strong vibration. Causes damage to thin-walled bearings in the slip ring, cracking of the plastic spindle, etc.
4. The degree of protection does not match the usage environment:
A conductive slip ring, usually not specified, with a protection rating of IP54. Some customers do not add additional protection, put them in the place where there is waterproof requirement, so that the inside of the slip ring enters water, causing internal short circuit and causing the slip ring to fail.
5. circuit design without protection circuit leads to:
When the normal conductive slip ring is shipped from the factory, the insulation performance of the product is tested with a high voltage of 5 times or more. Even in some cases, the slip ring is broken down and burned due to the demand.
6. the slip ring overload burned:
The maximum current allowed by the slip ring is the safely operable current value determined by a combination of the cross-sectional area of ??the conductive ring, the contact area of ??the brush, the pressure of the brush and the contact surface, and the rotational speed. Beyond this value, the conductive slip ring may have a slight heat, and the contact surface may be ignited, or even a solder joint may be formed between the brush and the conductive ring. Although the design phase of the conductive slip ring will take into account a certain safety factor, it is recommended that the customer supply the slip ring manufacturer to the maximum current actually used. Slip ring
