Power Tools Carbon Brush before use need to undertake what kind of work
What kind of work should be done before the power tool carbon brush is used? Electric tools used for carbon brush brush motor inside with the top on the surface of phase switcher, motor rotation, send electricity through phase switcher to coil, due to its main component is carbon, known as electric tools carbon brush, it is easy to wear. Cangzhou yongxin Power Tools Carbon Brush manufacturer is here to remind you what needs to be done before the new Power Tools Carbon Brush is used?
There are four things that need to be done before the new Power Tools Carbon Brush is used:
1, new electric tools carbon brush before use must be conformal grinding mill (arc), to ensure the electric tools carbon brush and slip ring surface contact was 80%, and the electric tools within the carbon brush into the brush holder should assure to be able to move freely up and down, if you have any unsmooth phenomena, electric tools should be carbon brush with sand paper burnish all around, keep electric tools for the inner surface of carbon brush and brush clearance should be between 0.1 0.3 mm, in order to prevent electric tools carbon credit card in the brush holder or because of the gap is too large to produce. The distance from the surface of the sliding ring should be kept at about 3mm ~ 4mm.
2. In the same time, only 1 to 2 electric tools will be used on each brush rack, and the new and old electric tools must be consistent with the carbon brush model.
3. Regularly use dc clamps to measure the current distribution of carbon brushes in each power tool.
Using the spring scale, the pressure should be uniform for all Power Tools Carbon Brushes, and the unit pressure is usually between 1.1 kg and 2.5kg, and the differential pressure difference between the Power Tools Carbon Brush is less than 5%.
What's the problem with the abrasion of the power tool carbon brush?
Different power tool carbon brush manufacturers and different power tools carbon brush models are different in composition and construction, so the wear rate of Power Tools Carbon Brushes will not be the same. Therefore, we recommend that the majority of customers choose the same kind of Power Tools Carbon Brush, because this can reduce the wear rate of the power tool carbon brush imbalance caused by the product model.
Four factors affecting the carbon brush wear of power tools:
1. A very important basis for determining the quality performance of the power tool carbon brush is the wear rate of the power tool carbon brush. Roughness on the surface of the slip ring can cause a certain carbon brushes for electric tool wear: if the finish on the surface of the slip ring is high, because of its generated by the friction coefficient is relatively small, then the electric tools carbon brush wear rate can be decreased.
2. The material of the Power Tools Carbon Brush can also affect the wear and tear of the power tool carbon brush.
3. The pressure of the pressure spring will also affect electric tool wear of carbon brush: moderate pressure spring pressure must be adjusted, because if the spring pressure is too large, will increase the electric tools mechanical wear of carbon brushes
4. The current can also affect the wear and tear of the Power Tools Carbon Brush. In general, graphite electric tools of carbon brush carbon brush in the positive electric tools through the current than the cathode electric tools carbon brush flow of electric current is relatively larger, casual can cause the anode electric tools of carbon brush wear degree than the carbon brush of the cathode electric tools wear.
First, use a special wrench to loosen the screw, loosen and tighten the screw, and prevent the screw loose; Take off the power tool carbon brush braid; Remove the Power Tools Carbon Brush and the equalizer spring. When installing the power tool carbon brush, first brush the power tool carbon brush into the brush; Pressure all springs; Use a special wrench to tighten the screw fastening and tighten the screw to prevent the screw from being damaged; Check the power tool carbon brush in the brush holding internal movement, the spring should press the power tool carbon brush center position, the pressure is normal