Elevator hydraulic system for high-rise residential buildings

Abstract

The invention discloses a hydraulic system of a high-rise residential building elevator. The hydraulic system comprises a master oil tank (1), wherein the master oil tank (1) is connected with a working oil line via an oil filter (2). The hydraulic system is characterized in that the working oil line comprises a hydraulic pump A (3); an inlet of the hydraulic pump A (3) is connected with an outlet of the oil filter (2); an outlet of the hydraulic pump A (3) is connected with a safety valve A (5) and a P port of a three-position four-way proportional reversal valve A (8) in parallel via a one-way valve A (4); a B port of the three-position four-way proportional reversal valve A (8) is connected with an oil outlet of a hydraulic cylinder (13); a T port of the three-position four-way proportional reversal valve A (8) is connected with an oil tank A (7); and an A port of the three-position four-way proportional reversal valve A (8) is connected with an inlet of a speed regulating valve A (9) and an outlet of a one-way valve C (11) in parallel. The system is reasonable in design, simple in structure, easy to achieve, moderate in cost and convenient to service and maintain, can effectively improve safety and reliability of the elevator in an operating process, and runs stably and comfortably at the same time.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a hydraulic system applied to elevators in high-rise residential buildings. Background technique [0002] With the continuous improvement of the level of urbanization in our country and the continuous expansion of the city scale, the height of newly-built residential buildings is generally more than 20 to 30 floors. Stability issues are of great concern. Although traction elevator technology is relatively mature, many elevator accidents reported in recent years have shown that traction elevators still have many problems in ensuring people's life safety. [0003] The elevators in existing residential buildings mainly use traction technology. The traction-driven elevator is to hang the car at one end of the traction wire rope, and hang the counterweight at the other end. Friction is generated between the lead wire rope and the rope groove of the traction sheave, thereby driving...

AI Technical Summary

Problems solved by technology

However, when there are uncertain factors such as sudden power failure and mechanical failure, the car of the traction elevator is prone to free fall, causing great physical damage or even loss of life to the person taking the elevator. Therefore, the use of safer and more reliable technology to improve the safety of elevator operation has become an urgent problem to be solved.

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