First, an overview
Transparent simulation teaching elevator is to cooperate with universities, colleges, junior colleges and special secondary schools, technical schools, vocational schools, employment training center, elevator maintenance property management department elevator related professional and industrial automation professional courses experimental demonstration, so that more people can better understand the elevator, elevator, train more professional elevator, to meet the needs of the development of elevator industry, our company through in-depth exploration and research, carefully designed.
The elevator is based on the most common lift structure, made of transparent organic materials, the structure of the elevator is the same as the actual, and almost all the functions of the elevator. In order to facilitate teaching, most of the elevator components are made of transparent organic materials, the internal structure of the elevator at a glance; at the same time, elevator operation process, and each action are very clear, and can be repeated in practical operation. So that students can be very intuitive, thorough understanding of the structure of the elevator and its action principle, to achieve a multiplier effect. Solve the previous elevator teaching in the pure theory of teaching methods or to visit the actual elevator is not safe, can not fully understand its internal structure and operational process, and other practical problems.
Electrical control system of the elevator using SIEMENS programmable logic controller (PLC) to achieve the logic of intelligent control, AC variable frequency drive, the composition and function of its hardware and the actual elevator is exactly the same. With automatic flat layer, open the door automatically closed, Shun shout a ladder signals, go straight, elevator safety protection operation and elevator emergency stop, slow, slow down, lights, fans, and other functions to the response of the car inside and outside. It has the characteristics of reliable performance, stable operation, simple operation, low energy consumption and convenient teaching.
In addition, XIOU transparent simulation teaching elevator hardware and software are using open structure, institutions can also use this set of devices for the two development of the study. Such as:
1, the elevator (lift unified multi station centralized parallel);
2, parallel control of the elevator (2-3 station elevator control lines in parallel, the logic control, common layer station outside the call button);
3, set the choice of control of the elevator;
4, signal control elevator, etc..
Two, the basic structure of the elevator
1, the machine part comprises a traction: traction motor, reducer, brake, traction wheel, rotary encoder;
2, control cabinet parts: the total power supply, control power supply, PLC programmable controller, inverter, wiring board and other equipment
3, the shaft part: including the guide rail, the weight of the device, the buffer, speed limiter wire rope tensioning device, limit switch, flat layer sensor, the accompanying cable
4, hall door: including the hall door, call button box, floor display device, etc.;
5 and a car part: including the car, car door and touch panel, speed switch, speed pull rod device, safety gear, guide boots, door machine, open switch position and closed in place of a switch, a flat layer of sensing device, car lighting, fans, etc..
Three, the basic functions of the elevator
A. over speed safety protection system
When the elevator accident, car speed or speed down (broken as a wire rope, car top pulley detachment, traction machine worm closing failure, motor speed down too high). At this time, governor will emergency braking, through safety cables and linkage, driven by action of a pair of safety tongs, the car card on the guide rail and can not fall down.
B. car, to reuse spring buffer device
Buffer is the limit position of the elevator safety device, when the elevator due to failure, resulting in the car or on heavy squatting bottom or top punching (limit switch protection failure), car or on heavy bombardment spring buffer, buffer absorption by the elevator energy, so that the car or on safety deceleration to stop.
C. door safety contact plate protection device
On the edge of the door of the car, a safety touch panel is provided. When the door in the closing process, contact safety contact plate and passengers or obstacles by safety contact plate connected with the connecting rod, touch is installed in the car door on the actions of the microswitch, make the door to open, to avoid accidents.
D. upper and lower limit switch:
In the elevator shaft, and the lower end of installed the switch, the and installed in the upper and lower limit switches, since the purpose is protecting box does not exceed this range, if it exceeds the upper limit or lower limit, the motor automatically stop, at work, keep up with, limit switch distinction lies in the power down the switch does not.
Automatic closing device for E. hall door
The door of the elevator door is opened and closed, which is realized by means of a door blade mounted on the door of the elevator. Each layer door is provided with a door lock. After the door is closed, the door lock is engaged with the mechanical locking hook, and the elevator can start operation.
F. layer door interlock switch:
When all the doors are closed, the elevator can be lifted, and if the door is open, the elevator is not running.
G. terminal limit switch safety protection system
A terminal limit switch is installed at the top of the elevator shaft and the bottom layer. When the elevator is out of control, the car has a top or bottom of the car, the terminal limit switch moves, the alarm signal is sent out and the control circuit is cut off, so that the car stops running.
