Overload protection for hard to access drives

With the EAS-reverse, mayr power transmission has developed a disengaging torque limiter on which all functional processes can be automated through the drive. It is easy to handle, permits long run-out times and re-engages again through slow backwards rotation. The housing also makes the clutch resistant to dust or spray water.

In case of rough operating and ambient conditions such as dust, dirt, spray water, heat or cold, the drive lines, particularly in heavy mechanical engineering, are frequently encapsulated and hard to access. But these machines in particular require reliable overload protection. The EAS-reverse automatically re-engages, making it suitable for drives without access possibilities for re-engagement without the use of pneumatics or hydraulics.

On the EAS-reverse torque limiter, all functional processes can be automated via the drive alone. In case of overload, if the torque exceeds the value set on the clutch, a disengagement mechanism separates the input and output almost residual torque-free with high switch-off and repetitive accuracy. The kinetic energy from the rotating masses stored in the system can slow down freely. After responding, the clutch can withstand long drive run-out times.

The unit is said to transmit the torque with low wear of < 0.05° and features hardened functional parts. It is easy to handle and represents adaptable, branch-optimised solutions with its numerous versions and additional characteristics. In this way, for example, the combination with an elastomer coupling permits easy separation of the drive line by loosening a few screws, without the motor or gearbox having to be displaced. In addition, applications with load-holding outputs can also be combined with a brake disk on the output side. The EAS-reverse can also be integrated into a solid housing with standard IEC or NEMA dimensions.

The torque limiter already covers the first three construction sizes with a torque range from 80-2500Nm, and this range is to be extended with a fourth construction size up to 5000Nm and a bore diameter of up to 100mm. The EAS-reverse provides permanent protection for machines and protects them against overload damage, ensuring operational safety and maximum productivity.