a safety elevator

Abstract

The invention relates to a safe elevator which comprises a car and a car traction system. The car traction system comprises a steel cable traction device and a pulley assembly. The steel cable traction device comprises a steel cable and a power traction shaft set. The steel cable comprises a car traction segment steel cable body with one end fixedly connected with the top face of the car and a traction end steel cable body. The power traction shaft set comprises a power traction shaft and a standby power traction shaft. The pulley assembly comprises a car traction pulley achieving vertical reversing, a reversing pulley set achieving horizontal reversing and a traction end pulley set achieving vertical reversing. The reversing pulley set comprises a first reversing pulley and a second reversing pulley which are arranged on the same horizontal plane. The traction end pulley set comprises a first traction end pulley and a second traction end pulley which are coaxial. According to the safe elevator, a traction wheel cable for standby emergency is added in the existing motor traction lifting scheme, meanwhile, the overall length of the steel cable is reduced, and the safe elevator has the beneficial effects of being safe, reliable and low in manufacturing cost.

Description

technical field [0001] The invention relates to an elevator, in particular to a safe and reliable elevator, and belongs to the field of elevators. Background technique [0002] In 1852, E.G. Otis of the United States developed a safety elevator that was lifted by a wire rope. In the 1880s, the drive device was further improved, such as the motor driving the winding reel through the worm drive, using a balance weight, etc., and at the end of the 19th century. Friction wheel transmission greatly increases the lifting height of the elevator. Existing elevator is mostly a kind of vertical lift that adopts motor output power, and box-like gondola is housed, takes advantage of people or carries goods for multi-storey building. The most common vertical elevator usually has a car and a counterweight device that pulls the car up and down. The specific components of the elevator can be divided into traction system, guide system, car, door system, weight balance system, power Drag sy...

AI Technical Summary

Problems solved by technology

[0005] The safety elevator of the present invention discloses a new scheme, in which an emergency spare traction sheave is added to the existing scheme of motor traction lifting, which solves the problem that the existing elevator relying on pulley cable traction does not have an emergency spare sheave scheme

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