2012年7月13日星期五

Conducting ring main detection performance index briefly reviewed

In the industrial use, Miniature Slip Rings mainly plays the role of a rotary joints. What is the performance index for its stable, reliable operation provides a guarantee? Here we conducting ring of some of the main parameters, make simple analysis, including its inspection method, inspection occurred in some abnormal factors and solutions.

Travel conducts conduct ring main product performance inspection for the assembly size shape of inspection, in single contact resistance test, the conductive Capsule Slip Rings in the operation of contact resistance testing, between loop insulation strength, high crushing strength test, turn the friction torque detection. Here, we which turn contact resistance of the fluctuation of the insulation between the loop and intensity of focus. Single contact resistance of fluctuation signal, current directly influence the quality of the transmission and conducting ring operation stability, the test method is put conducting ring into testing instrument, makes conductive slipring running in state, with micro the slightly nationalism to single dynamic resistance measured the fluctuation. Each contact resistance fluctuation should not 10 backhoe Europe, general cause contact resistance fluctuation is mainly due to excessive brush wire and metal ring contact bad, bad reason most is not enough pressure or a foreign body in the interface or because the metal ring deformation caused by factors.

This requires the production process for "five S" on the strict execution; On the other hand to the process of production of, in the installation of brush line pressure adjusting brush line, the pressure don't too much and do not too small, long-term experiment that force is around 10 g is more appropriate, can meet the requirements of the contact resistance, also won't friction too big effect life; And there is the installation of the metal ring aging, let stress get released in full, do not cause ring way deformation. Insulation intensity between loop is to point to in the next to two road use 500 V or 1000 V insulation compression test instrument. If I can't pass the test are the main reasons: the short-circuit, loop between the conductive medium connectivity, or wire line to hurt a short circuit, or processing project of the partial ring cause; And is the decline in insulation, insulation performance declines could be the cause of the material, and may be encapsulating compound happened when crack, holes and other bad, humidity is too big because humidity to enter insulation performance to decline.

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