电梯The core components of the following categories:
      1.Electric drive system: provides power for the elevator and realizes speed control system, including traction motor power supply system, speed feedback device, motor speed regulation device, etc。
      2.Electrical control system: responsible电梯Operation and management, including control device, position display device, control panel cabinet, leveling device, layer selector, etc。
      3. Safety protection system: used to ensure the safe use of the elevator, including speed limiters, safety clamps, buffers, terminal protection devices, etc。
      4.  Traction system: responsible for the transmission of power to the elevator car, mainly by traction machine, traction wire rope, guide wheel, reverse rope wheel composition。
      5.Guidance system: limits the freedom of movement of the car, so that it can only move on the guide rail, mainly composed of guide guide boots and guide rail frame。
      6.Car: An elevator component that carries passengers and cargo, usually consisting of a car frame and a car body。

      7.Door system: including car door, floor door opening machine, door lock device, etc., used to close the elevator landing entrance and car entrance。
      8. Weight balance system: The system that maintains the weight difference between the car and the counterweight, mainly composed of the counterweight and the weight compensation device。
      此外，电梯还包括变频器、制动器、缓冲器、安 全钳、限速器、引入装置、自动开关、变压器、整流器、刀开关、转换开关、接触器、电磁继电器、选择器、主令电器、终端开关、门的连锁触点、制动电磁铁、灯光讯号盘、楼层灯光讯号、讯号显示器、信号铃、导轨、梯井、机房等部件。