How to prevent the broken 2 wheel in the idling

In grinding operation rules have a provision, requires the operator to install new grinding wheel before grinding should let it idle for a few minutes, the purpose is to observe the possibility of broken. Wheel the reason why the idling broken, mainly because it in the rotation of the front has a crack. Therefore, the prevention of such broken should be to prevent the wheel in the transport, storage and installation of the cracks.

2.1 correct grinding wheel transport mode and method

(1) long distance transport, handling should be complete package, available has no significant impact on the environment of soft materials will wheel fully infilled, to prevent the handling process of vibration and impact.

(2) short distance transport:

A. handling to prevent the wheel from falling or hit by the impact of such impact;

B. must scroll, to spread on the ground to buffer wood, rubber or straw bags such as, in the gently rolling;

C special heavy grinding wheel should be used when handling special handling tools, the use of tools should be equipped with soft materials of the liner, the vehicle should be equipped with inflatable tires.

However in the practical work, we can often see short distance conveying wheel in did not take any protective measures, in the factory on the road rolling wheel, a solid wheel cart to transport the wheel (especially in the trenches cut grinding wheel), they are ignoring wheel transport regulations on the storage, irresponsible to the personal safety of the operators, safety accident hidden trouble.

2.2 correct grinding wheel keeping method

(1) the requirements of the storage environment:

A. grinding wheel should be placed in a dry, temperature change is small, and the room temperature should not be less than 5 degrees celsius;

B. where there is no vibration;

C rubber bonded grinding wheel can not contact with oil, resin bond wheel should not be in contact with alkali;

D. rubber bonded grinding wheel and resin bond grinding wheel storage temperature is best at 5 degrees 20 degrees Celsius, the relative humidity should not be greater than 60%, to avoid direct sunlight and close to the heat sink, drainage device.

(2) requirements for storage space and manner

A, the wheel should not be piled up at random, should be stored within the appropriate stent, cabinets or drawers, should be in accordance with the specifications are placed separately, storage should be with signs, in order to avoid confusion and error.

B. placement method should be considered the shape and size of the grinding wheel, the larger diameter or thickness of the grinding wheel should be upright or slightly inclined placed, thinner and smaller grinding wheel should be stacked, but stacked height not more than 60 a 500 0mm;

C. small wheel diameter (diameter 50 mm below) be used rope on the safe, bowl, cup and saucer shaped wheel should be to the bottom face under a stack, but placed height can not be too high.

D. rubber or resin sheet grinding wheel stack height to below 200 mm, and in the upper and lower put a flat iron plate to prevent deformation of the grinding wheel, with the sharp edge of the sheet wheel shall be stacked and in the middle pad to pad thick paper or other soft material);

E. resin bond, rubber bonded grinding wheel in the process of storage, the bond will be aging to reduce its strength, so the storage period of the grinding wheel generally can not be more than one year. The grinding wheel must be re examined before it can be used after the storage period;