Vertical lift with multi-stage electromagnetic auxiliary braking energy saving safety device and control method

Abstract

The invention provides a vertical lift with a multi-stage electromagnetic auxiliary braking energy saving safety device. According to the vertical lift, a control device is arranged at top of a lift car. A traction machine and pulley assembly is arranged above the lift car. A speed governor is arranged on one side of the traction machine and pulley assembly. A rope above the lift car is connected with a counterweight through the traction machine and pulley assembly and the speed governor. A traction machine of the traction machine and pulley assembly is connected with a rotary shaft of an electric generator. The electric generator is connected with an energy storage battery through a connecting line. A left electromagnet and a right electromagnet are mounted on the left side and the right side of the lift car correspondingly. Iron plates are fixedly mounted on the inner walls of a hoistway. The iron plates on the left side correspond to the left electromagnet. The iron plates on the right side correspond to the right electromagnet. Braking force of the vertical lift can be increased, and the problem of lift slippage due to insufficient lift mechanism braking force is solved advantageously; and meanwhile, motion resistance is increased, the operating speed of overspeed or stall lifts can be decreased advantageously, the safety and reliability of the lift are improved, and personal injuries to passengers are reduced.

Description

technical field [0001] The invention relates to the technical field of elevator safety, in particular to a vertical elevator with a multi-stage electromagnetic auxiliary braking energy-saving safety device and a control method. Background technique [0002] With the rapid development of modern high-rise buildings, elevators have become an indispensable means of vertical transportation in people's lives. By the end of 2015, the total number of elevators in the country exceeded 4 million, an increase of nearly 1.5 times compared with 2011. The number of elevators in my country ranks first in the world. However, in recent years, vicious elevator accidents have occurred frequently, and passenger casualties have continued. In 2015, there were as many as 8 elevator accidents in just one month, resulting in 6 deaths and 14 injuries, which seriously endangered the lives of passengers. Familiar with elevators, and have a crisis of confidence in the safety of elevators. On the other ...

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Problems solved by technology

[0003] In order to solve the above-mentioned existing problems, the present invention provides a vertical elevator with a multi-stage electromagnetic auxiliary braking energy-saving safety device and a control method, which can increase the braking force of the vertical elevator and help to solve the problem of sliding stairs caused by insufficient mechanical braking force of the elevator. At the same time, increasing the motion resistance helps to reduce the running speed of overspeed or stalled elevators, improve the safety and reliability of the elevator, and reduce the personal injury to passengers. Vertical elevator, including car, rope, traction machine and pulley assembly, speed limiter, generator, energy storage battery, counterweight, iron plate, electromagnet and control device, said vertical elevator is in the hoistway, said There is a control device on the top of the car, and there is a traction machine and a pulley assembly above the car, and a speed limiter on one side of the traction machine and the pulley assembly, and the rope above the car passes through the traction machine and pulley assembly and the limiter The gearbox is connected with the counterweight, the traction machine of the pulley assembly is connected with the shaft of the generator, the generator is connected with the energy storage battery through a connection line, and the left and right sides of the car are respectively installed There are a left electromagnet and a right electromagnet, the inner wall of the shaft is fixed with an iron plate, the iron plate on the left corresponds to the left electromagnet, and the iron plate on the right corresponds to the right electromagnet

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