Energy-saving elevator without traction motor

Abstract

The invention discloses an energy-saving elevator without a traction motor. In the energy-saving elevator, a car traction wheel is linked with a counterweight block traction wheel through a stepless transmission; the relative speed is adjustable; the elevating power of a car is realized by changing the relative torque difference between the car traction wheel and the counterweight block traction wheel through the stepless transmission; the weight of the counterweight block is constant; the weight of the car changes between idle load and full load; after the weight of the car is determined and the car is elevated or lowered, the transmission can be adjusted through a sensor and a controller in order to change the relative torque between the car traction wheel and the counterweight block traction wheel; if the torque of the car traction wheel is smaller than the torque of the counterweight block traction wheel, the car ascends; if the torque of the car traction wheel is greater than the torque of the counterweight block traction wheel, the car descends, so that the aims of eliminating the traction motor and saving energy are fulfilled.

Description

technical field [0001] The invention belongs to the field of energy-saving elevators, in particular to an energy-saving elevator without a traction motor. Background technique [0002] High-rise buildings are the most effective means of saving land. Therefore, in cities where land is scarce, there are many high-rise buildings. There must be elevators in high-rise buildings, otherwise it will be very difficult for people to go up and down the stairs. In the survey and statistics of electricity consumption in hotels, office buildings, etc., the electricity consumption of elevators accounts for more than 17%-25% of the total electricity consumption, second only to the electricity consumption of air conditioners, and higher than the electricity consumption of lighting and water supply. At present, elevators have become one of the largest households of civil power-consuming equipment in my country. Therefore, it is of positive significance to research, develop and promote the use...

AI Technical Summary

Problems solved by technology

The Chinese patent "Counterweight power adjustable energy-saving elevator" application number 200610124012.0, announcement number 1974361, changed the traditional traction motor reducer into a variable speed reducer, which played a certain role in improving the working conditions of the traction motor. But as we all know, labor saving is not labor saving, labor saving is not labor saving, its energy saving effect is limited, and the effect of using variable frequency traction motor is much better than it

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