Dale_Mahalko
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- Mar 26, 2016
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For people with epilepsy and other consciousness control disabilities such as narcolepsy, it is dangerous to have a seizure or loss of control when you're next to a running high-torque machine.
A deadman's switch that must be squeezed or pressed to keep it running is a good idea to stop the machine, but it may still take several seconds for heavy rotors and spinning loads to coast to a stop.
There is a safety device called a power-off brake, which is electromagnetic. When powered, the brake is disengaged and the device operates normally.
When power is cut, springs engage the brake to rapidly stop the equipment. Depending on how strong the brake is, this can provide up to nearly instantaneous stopping of the load, to render it safe as quickly as possible.
There are also combination clutch-brakes, so that the load disengages from the power source, reducing the amount of mass to be halted by the brake.
I have no idea on the costs, but it seems worth researching as an add-on machine tool safety measure.
One example Google search result for this:
http://www.warnerelectric.com/power-off-brake-products.asp
A deadman's switch that must be squeezed or pressed to keep it running is a good idea to stop the machine, but it may still take several seconds for heavy rotors and spinning loads to coast to a stop.
There is a safety device called a power-off brake, which is electromagnetic. When powered, the brake is disengaged and the device operates normally.
When power is cut, springs engage the brake to rapidly stop the equipment. Depending on how strong the brake is, this can provide up to nearly instantaneous stopping of the load, to render it safe as quickly as possible.
There are also combination clutch-brakes, so that the load disengages from the power source, reducing the amount of mass to be halted by the brake.
I have no idea on the costs, but it seems worth researching as an add-on machine tool safety measure.
One example Google search result for this:
http://www.warnerelectric.com/power-off-brake-products.asp