The traditional elevator is the organic room, the host, […]
The traditional elevator is the organic room, the host, control screen, etc. placed in the engine room. With the progress of technology, traction machine and electrical components of the miniaturization, as well as the rise of screw-type elevator, people are more and more interested in the elevator room. Machine room less elevator is relative to the organic room elevator in terms of, that is, save the engine room, the original room of the control panel, traction machine, speed limiter, etc. to the shaft, etc., or other technology to replace. No machine room elevator is characterized by no room for the builders to reduce costs, and other machine room less elevator generally use frequency control technology and permanent magnet synchronous motor technology, so energy saving, environmental protection, do not take up space in addition to the hoistway.
With the development of new elevator technology, the control cabinet, drive the host and other equipment installed in the hoistway mode has occupied a considerable share in the elevator field. As the machine room less elevator will control cabinets, drive the host and other equipment installed in the hoistway, relative to the traditional traction elevator excellent new technical characteristics, in the maintenance of inspection and test operations, such as face to face security has been reduced. Therefore, it is necessary to add new security requirements and take security measures to eliminate the risk and reduce the risk.
Elevator is a special equipment, its maintenance is a need for specialized qualification of special types of work, must be implemented before the implementation of the corresponding safety measures, strict compliance with safe operating procedures, otherwise there will be a high risk hidden dangers. General elevator traction machine, control cabinet, speed limiter and other components are located in the engine room, the maintenance of these equipment can be completed in the engine room, the work space is more spacious and safe and convenient, working methods are also familiar to the maintenance staff. As the main equipment and equipment are all installed in the hoistway, the maintenance of these equipment need to be carried out in the car roof area, not only the work space is small and added a lot of danger. Therefore, the operation must be carried out in accordance with the special maintenance and safety procedures.
Need to focus on the point is that there is no room, machine room less elevator maintenance work often requires workers in the top floor of the entrance and the top of the well. Under normal circumstances, the top floor of the entrance and exit location will pass by passers-by, so the operating staff in the maintenance of non-engine room elevator must pay attention to take the appropriate safety isolation protection measures.