can be calculated by the finite element method of stress magnitude different speeds to simulate the failure process and improve the design.
2013年8月2日星期五
How to use the grinding wheel
1 in the choice of grinding wheel should be based on their mode of operation, a reasonable choice of cutting and grinding wheel objects and conditions; particular
attention: cutting the workpiece should be used T41 or T42 grinder, grinding the workpiece should be used T27 or T27a type wheel.
2 wheel must be visually inspected prior to installation, not allowed to use it on if it is damaged.
3 When installing wheel, flange to meet technical requirements, and require contact with the wheel flange surface clean and smooth, tighten wheel elastic medium, too
loose, too tight or grinding wheel with flange contact surfaces are easily lead to uneven wheel damage; Only use special wrench hand
Workers reinforcement, such as prohibiting the use of a long wrench or spanner beat, and beat prohibited wheel installation, to prevent damage to the wheel man.
4 wheel drive spindle should meet the technical requirements, and match with aperture wheel. If the shaft is too small, the wheel mounting misalignment, use will cause
even blasting wheel beating.
5 Use the wheel, the wheel has to be installed protective cover, operating personnel required to wear protective equipment, and other personnel are prohibited on the
wheel work surface to ensure safe use.
6 wheel installed, should be idling 1 ~ 2min, then official use.
7 wheel speed should not exceed the mark with the specified operating speed when using pneumatic equipment, especially when multiple machines using the same gas
source, to control the air pressure, it is best to install a separate device for each pressure limiting valve to prevent pressure instability, resulting in too large
wheel
Exceed the maximum use of speed and cracked wounding.
8 when using the wheel slowly feed too much force could easily lead to wheel jammed and crashed wheel phenomenon. If there is jammed wheel and wheel lift off
immediately to avoid wheel burned out or broken card.
9 does not allow multiple pieces of stacked cut workpiece, because more than overlap without clamping, the Abrasive grinding wheel is stuck at work easily broken, leading to
serious accidents.
10 should not end with a cutting wheel for grinding work. Sheet cutting wheel cutting angle of 90 °, cymbals grinding wheel angle of 15 ° ~ 30 °. Installation disc,
only allows the use of a dedicated wrench tightening by hand, machine spindle should meet the requirements, when using the disc
, To slowly feed, to prevent too much force, the occurrence of millstones grinding angle of 0 to 30.
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