Summarize and share the common questions in the application process of sliding ring products

Summarize and share the common questions in the application process of sliding ring products

In the practical application process of sliding ring, there will always be some problems. Today we will focus on summarizing to share with you, the details are as follows:

First, the slip ring is short-circuit

When the slip ring uses a short circuit after a period of time, it may be the life of the slip ring, or the overload causes the slip ring to burn. Generally, if the new sliding ring has a short circuit, it is caused by the internal insulation material of the sliding ring or the brush wire and brush wire direct short circuit, wire breaking and other reasons. This must be tested by exclusion method.

Second, the signal slip ring interferes too much

The sliding ring can be used to transmit the power supply and the signal, and there will be interference between the power supply and the signal, which is divided into internal interference and external interference. For the designer must clearly know the type of signal, for special signals must be used in a special wire for internal and external shielding processing. For the formed sliding ring, if the sliding ring signal is interference, it can shield the external wire by itself. If it is still not solved, the internal structure of the sliding ring can only be redesigned.

Third, the sliding ring does not turn well:

Excluding the problem of sliding ring assembly and the problem of the selection of bearings, the cause of such problems is usually that the customer does not put forward seismic requirements when choosing the sliding ring, and the environment used has strong vibration. Causes the damage of the thin-walled bearing in the slip ring and the rupture of the plastic main shaft.

Fourth, the protection level is not consistent with the use environment

Normally unspecified conductive slip ring with protection level ip 54. Some customers do not add additional protection, put it in the waterproof requirements, making the slip ring internal water, causing internal short circuit, causing the failure of the slip ring.

Fifth, the circuit design of the unprotected circuit leads to

Usually when the conductive slip ring leaves the factory, the insulation performance of the product will be tested with a high voltage of more than 5 times the operating voltage. Even so, under some working conditions, it can not meet the demand and cause the slip ring is broken and short circuit burned.

Sixth, the sliding ring overload is burned

The maximum current allowed by the sliding ring is the current value that can operate safely determined according to the comprehensive factors such as 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 rotation speed. Beyond this value, the conductive slip ring may have a light heat, a heavy contact surface fire, and even form a welding point between the brush and the conductive ring.