Performance requirements for lubricating oil in elevators
Release time:
2023-09-04
The main components of various types of elevators are different, but they usually include eight major components: traction system, guide system, car, door system, weight balance system, and electric drive system.
The main components of various types of elevators are different, but they usually include eight major components: traction system, guide system, car, door system, weight balance system, electric drive system, electrical control system, and safety protection system.
Elevators are generally divided into two categories: elevators and escalators. The main components of various types of elevators are different, but they usually include eight major components: traction system, guide system, car, door system, weight balance system, electric drive system, electrical control system, and safety protection system. The main machines of the elevator are mostly located at the top, including the motor and control system. The motor rotates through gears or (and) pulleys as the power for the chassis and counterweight to move up and down. The control system controls the operation of the motor and other operations, including controlling the operation and braking of the elevator, as well as safety monitoring.
There are many parts that need to be lubricated in the elevator equipment, mainly including traction gear box, wire rope, guide rail, hydraulic buffer and car door machine.
For the toothed traction elevator, the function of the traction system reduction gearbox is to reduce the output speed of the traction machine and increase the output torque. Traction system reduction gear box structure has a variety of, commonly used are worm type, bevel gear type and planetary gear type. Most of the turbines of the turbine worm traction machine are wear-resistant bronze, and the worm is made of surface carburizing and quenching alloy steel. The sliding between the tooth surfaces of the worm drive is large, the contact time of the tooth surface is long, and the friction and wear are prominent. Therefore, no matter what kind of worm drive, there is a problem of extreme pressure and anti-wear.
Similarly, bevel gear type and planetary gear type traction machines also have the problem of extreme pressure and wear resistance. In addition, the oil used in the traction machine should have good fluidity at low temperatures and good oxidation stability and thermal stability at high temperatures. Therefore, the reduction gear box oil of the toothed traction machine usually selects the worm gear oil with the viscosity of VG320 and VG460. This kind of lubricating oil can also be used for the lubrication of the escalator chain. The anti-wear and lubrication performance has been greatly improved. A strong oil film is formed on the metal surface, which adheres to the metal surface for a long time, effectively reducing the friction between the metals, so that the gear can get a good lubrication protection immediately when starting. Gear lubricating oil has excellent water resistance, oxidation resistance and strong adhesion, which can improve the sealing of the gear box (worm gear box) and reduce oil leakage.Reduce oil leakage.
For the oil used for the reduction gear box of the traction machine, the temperature of each part and bearing of the general elevator reduction gear box should be less than 60 ℃, and the oil temperature in the chassis should not exceed 85 ℃. The oil used should be selected according to different models and functions of the elevator. Lubricating oil of different brands, and attention should be paid to the amount of oil, oil temperature and oil leakage.
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