2015年2月2日星期一

tile cutting wheels Wheel balancing test

Wheel imbalance caused due to gravity does not coincide with the wheel axis of rotation. The reason is that it produces defects in manufacture and installation of the grinding wheel, e.g., tile cutting wheels wheel uneven density, the end face is not parallel to the bore and outside geometry or concentricity error, wheel mounting eccentricity. Unbalanced rotation of the grinding wheel at high speed to produce a centrifugal force forcing the wheel deviates from the axis, causing the wheel vibrations. The consequences affect not only the grinding quality, but also accelerate the wheel spindle bearing wear; wheel strength when the centrifugal force exceeds the allowable range, the wheel will cause fragmentation. New wheel and trimmed by the first wheel, and the discovery of the operation should be carried out unbalanced wheel balance test. There are two ways to balance the static and dynamic balance adjustment wheel balancing methods tile cutting wheels
(1) Balancing Act. The method by means of a sensor mounted on the machine, the direct display of the unbalance wheel apparatus rotates, and the distance by adjusting the position of the balance weight, the amount of unbalance to a minimum. 
(2) static balance method. Static balance adjustment in the balance shelves conducted to identify the center of gravity wheel by hand way, the installation of balance blocks, adjust the position of the balance weight until the balance wheel, generally available in eight directions so that the grinding wheel to maintain balance. reinforced concrete cutting discs Wheel need to be installed after the protective cover to adjust the balance after idling test. Idling Test time: diameter ≥ 400mm, idle time is greater than 5min; diameter <400mm, idle time is greater than 2min. 
During the idle test, the operator should stand side wheel safety position, shall not stand in the front wheel or tangential direction, to prevent accidents. 

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