Stz-450 brake electromagnet

For the elevator, the brake is both a working device and a safety device. With the development of technology and the promotion of energy conservation and environmental protection requirements, a growing number of gearless permanent magnet synchronous machine will replace the traditional type of worm and worm wheel traction machine, thus can no longer separate installed uplink overspeed protection device, this kind of gearless permanent magnet synchronous machine (should be) the type testing of the brake has upgoing overspeed protection function. According to the requirements of article 9.10 of the GB 7588-2003, capsules upgoing overspeed protection device is usually performed by the speed monitoring element and slow components of two parts, and the brake of gearless permanent magnet synchronous machine (all participating to the brake wheel or disk brake force f parts set is considered these two assembly parts exist within the redundancy) it is as a reduction of the element that the elevator to slow down or stop. Therefore, in the inspection, the type test certificate and report with uplink overspeed protection function should be checked for the actuator, and whether the brake and the traction wheel are directly rigidly connected. I there should be an electrical device to verify whether the brake works normally, but it is not necessary to string it into the safety loop. The braking performance of its uplink overspeed protection shall also meet the relevant requirements of article 9.10 of GB 7588-2003.

TSG T700 -2009 requires the elevator manufacturing unit to provide the type test qualification certificate of the driving host. The author has reviewed some type test qualification certificates and reports of the driving host, including the contents of the brake. Compared with the previous one, this one has an extra safety check whether in the mechanical part or the electrical part.