How many kinds of technology you should learn as an Elevator man

Elevator technology includes both electricity and mechanics. For elevator trainees, the foundation needs to be laid first.

The basics of electricity, from what is charge, to the control of the elevator, all knowledge points on the line must be fully mastered, otherwise, once there is a dead corner, it will cause a bottleneck in future analysis and problem solving.

This line is basically this: the composition of matter, the concept of molecular atoms, nuclei and extranuclear electrons, positive and negative charges, Coulomb's law, electrostatic induction, power principles, current, voltage, resistance, Ohm's law, Kirchhoff's current law Kirchhoff ’s voltage law, AC and DC, rectification and inverter, equivalent concepts, 2-phase rectifier circuit, 3-phase rectifier circuit, single-phase inverter and three-phase inverter circuit, pulse width modulation Concept, switching power supply principle, inverter main circuit and control basis, inductance, capacitance, electromagnetic induction law, power generation and principle, motor principle, asynchronous motor, synchronous motor, transformer principle, welding machine principle, voltage transformer, current transformer Principles and Applications of Relays, Principles and Applications of Contactors, Similarities and Differences of AC and DC Relays, Application of Back-EMF and Freewheeling Diodes, Forward and Reverse Control of Motors, Control of Elevators at 2 and 2 Stations, Controls of Elevators at 3 and 3 Stations, The control of the elevators at the n floors and n stations and the establishment of the elevator main control circuit are completed. Specifically for a certain type of elevator of a certain manufacturer, it is necessary to recite the code description first, and then read the picture to understand the picture. Start with the main circuit driven by the motor, power circuit, safety circuit, door circuit, function circuit, door control circuit, and car interior lighting. The fan control circuit and intercom circuit are opened one by one.

Mechanical foundations include: the use of manual hacksaws, the use of electric drills, electric hammers, the use of electric welding machines, the safe use of toothless saws and hand-held cutting equipment, the use of feeler gauges, vernier calipers, the use of laser distance measuring instruments, point thermometers usage of. Understand and master the basic structure of the elevator, such as decomposition, traction system, suspension system, guidance system, hall door system, car door system, counterweight system, car system, weighing system, safety system, control system, etc. Of course, it can be further subdivided according to the actual situation, such as the relationship between the door knife and the hall door wheel and the hall door sill. Understand the installation manual, the layout of the elevator's machine room and the layout of the hoistway.

During the learning process, remember to swallow the jujube. If the concept is not clear, the next step is not carried out. It is recognized that a slower step can be swallowed by the camp. Continued efforts to attack a little will lay a solid foundation. Try to find the kind of self-sufficient experience. One concept, one concept, one component and one component to master. Gradually expanding the relationship will eventually become a qualified elevator expert.

After the foundation is solidified, it can develop in depth and enter into the in-depth understanding of elevators of specific brands. From knowing it to knowing why it is, we must not count on it overnight, and do not want to run without learning to walk. The harder the foundation is, the more we can grow upward.

The success of any one person will not be smooth sailing. If no hard work is done, not winter training, summer training, summer training and three volts, if you don't face the difficulties, you will be brave enough to overcome difficulties, and you will not achieve real success.

The fragrance of plum blossoms came from bitter cold, and Bao Jianfeng emerged from sharpening.