Safety Clutches | Business Field Documentation - MAYR - #5

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mayr
Speed and Torque Paths
Speed and Torque Paths
After a collision, the .
torque increases very f rapidly to values which can be much higher
On overload, the clutch
disengages and separates input and output as quickly as possible. The stored
SB ----_ r
3
Motor
X
than the operating
co
torque. This overload leads to breaks in the drive line. The motor continues to run; the machine speed falls to 0.
rotatory energy is disconnected and runs free. A limit switch registers clutch disengagement and switches off the drive.
Time
Time
1 .
->
i Time
Time
Risk of Damage
The high accuracy and exact torque limiting mean that the drive
line is not damaged.
All components remain
within the flexible
deformation range.
Risk of Damage
Collisions without overload protection usually lead to the machine being completely damaged. The weakest link in the drive line breaks. The machine is no longer operational and downtime will last until the repairs have been carried out. 0
A
A
Totally damaged
Partly damaged due to plastic deformation
I
Flexible deformation
Flexible distortion
Dimensioning
Small and light constructions are possible due to accurate torque limiting and exact predictions on component load.
Dimensioning
Heavy, solid and slow-running constructions with high safety factors are necessary in order to keep collision factors as low as possible.
it
Costs
Costs incurred due to damage or wear are no longer to be expected.
After a short downtime to remove the overload, the system can be re-started.
Costs
Expensive replacement parts
• Complicated repairs
• Long downtimes

pageCatalog pdf di En 2012-02-07-17