The composition of the elevator is a very complex overall, different specifications of the elevator model, the composition of its components are not the same, and now, introduce some basic conditions.
1.Machine room
⑴Traction machine - is the elevator drive device, installed in the special load-bearing steel beam, it is mainly composed of the following components.
①Drive motor - VVVF is used to control the motor. The AC ladder is a special two-speed motor or three-speed motor.
②Brake - When the motor is energized, the brake is released and the brake is applied when the elevator is stopped and the position of the car is maintained.
③Reducer
④Traction sheave
⑵The speed governor, which is connected to the car by means of a wire rope, transmits the movement of the car to the governor to rotate the governor wheel. The speed governor functions when the speed of movement of the car exceeds the permissible safe speed.
⑶Control cabinet - with the help of the control device, the elevator to achieve the normal start and stop, up or down, fast or slow, and to achieve the scheduled automatic performance and safety performance.
2.Hoistway
⑴Rail - sub-car guide rail and counterweight guide rail, so that the car and the counterweight in the lift operation of the role of guidance.
⑵On the heavy - hanging on the rope, used to balance the car's own weight and 50% of the rated load of the elevator, in its upper and lower sides with guide shoes, so that the counterweight along the counterweight guide glide up and down.
⑶Buffer - installed in the car frame, the bottom of the hoistway pit under the heavy frame, when the elevator due to control failure, insufficient traction or braking failure occurred when the car or on the bottom squat, the buffer will absorb the car or The final kinetic energy, to provide the final protection to ensure the safety of personnel and elevator structure.
⑷The hoist terminal switch - installed at the upper and lower end stations of the hoistway and whose main function is to allow the elevator control system to recognize the absolute position of the elevator car at the hoistway terminal.
①Terminal deceleration switch
②Terminal limit switch
⒊The station
⑴Landing door - A door to the car is provided at each landing
⑵Summon button - When you press the up or down button of a station, the call signal is input to the elevator control system so as to accept the call signal.
⑶Gated door lights - installed in each layer of the station door on the side or above, and some with the call button together. The panel has a number indicating the stop floor and an arrow indicating the direction of travel.
⑴Car cabin - is the capacity of the elevator device.
⑵Safety gear
⑶Control box
⑷In-car indicator - Numbers indicate the position of the car in the hoistway, and the arrows indicate the elevator running direction.
⑸Automatic door machine - its role is based on the control signal to achieve automatic and smooth opening and closing the car door.
⑹Weighing device- A device capable of detecting the change of load in a car and signaling.
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