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, the speed limiter wire rope tensioning device, limit switch, flat layer sensor, accompanying cable, etc.;
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 machinery
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.
Four, touch screen
Features: 1): elevator group control training device by two complete with independent operation function of the sixth floor of station simulation teaching elevator components, through the 485 communication module connection was disconnected or set for independent operation can be used as two independent of the sixth floor of station simulation teaching elevator use. Elevator group function mainly includes: the conventional group, energy-saving group and peak group three patterns, which peak group and divided into peak uplink and down peak and midday service. Each function module includes: priority scheduling control, special service, parking control, "long waiting time" call control, running status monitoring. Students can clearly see the various states in the operation of the elevator on the touch screen interface, including the operation status of the elevator, the position of the car floor and the location of the fault.
2) main functions
1. State monitoring, the function can monitor main and auxiliary ladder group running status and fault alarm state, and a cage door, elevator running direction, elevator palanquin box position, priority scheduling of elevator, elevator response outbound call and overall outbound task settings.
2 conventional group, which adopts the conventional parallel operation strategy, can be set up on the basis of the priority of the elevator to start the call, "long wait" call control, parking control, special floor and regional settings.
3 energy saving group, which uses the priority to start the elevator to respond to the call strategy and parking control function, can be set on the special floor and area, so that the floor area to get faster response speed.
4 peak group, it uses the call bias strategy, so that a certain type of call to obtain a shorter response time than the original. It includes:
Uplink peak: the most high elevator response to the downstream along the ladder, the low priority scheduling to the base station scheduling strategy, so that the elevator scheduling bias in response to the call of the uplink to ignore the downstream call.
Peak downlink and uplink peak instead. In the model the low elevator uplink response of cis to block ladder, high lift priority scheduling to the high base station, the elevator scheduling tend to respond to down call is ignored in uplink call.
Midday service: in this mode the "long waiting call control compensation is a call position according to the original strategy mode, waiting for a long time in starting a call in the position of priority scheduling, so as to shorten the waiting time.
