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Hydraulic elevator system with ultra-low noise and stable operation

An elevator system and ultra-quiet technology, applied in the field of elevators, can solve problems such as poor car stability, high running noise, and large deviation of car running speed, etc., to achieve stable car running, constant protection pressure, and pressure adjustment Excellent effect

Active Publication Date: 2015-03-11
WEIBO ELEVATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of elevator has a relatively large deviation in the running speed of the car, poor stability of the car, and high operating noise.

Method used

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  • Hydraulic elevator system with ultra-low noise and stable operation
  • Hydraulic elevator system with ultra-low noise and stable operation

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Effect test

Embodiment

[0015] Embodiment: a kind of ultra-quiet and running steady hydraulic elevator system, constitutes as figure 1 As shown, a car 1 is included, and a hydraulic cylinder 2 is fixed on the bottom of the car 1. The hydraulic cylinder 2 is connected to an oil circuit system 3, and the oil circuit system 3 is connected to a control system 4; the oil circuit system 3 includes an oil cylinder 5, Oil cylinder 5 is connected with filter 6, filter 6 is connected with oil pump 7, oil pump 7 is connected with three-position four-way valve 8 and is connected with A port of three-position four-way valve 8, B port of three-position four-way valve 8 is connected with oil cylinder 5 The C port of the three-position four-way valve 8 is connected to the electro-hydraulic proportional speed control valve 9, and the electro-hydraulic proportional speed control valve 9 is connected to the cylinder bottom of the hydraulic cylinder 2; the D port of the three-position four-way valve 8 is connected to the...

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Abstract

The invention discloses a hydraulic elevator system with ultra low noise and stable operation. The hydraulic elevator system comprises a car, wherein a hydraulic cylinder is fixed at the bottom of the car and is connected with an oil way system; the oil way system is connected with a control system and comprises an oil cylinder; the oil cylinder is connected with a filter; the filter is connected with an oil pump; the oil pump is connected with a three-position four-way valve and is connected with a port A of the three-position four-way valve; a port B of the three-position four-way valve is connected with the oil cylinder; a port C of the three-position four-way valve is connected with an electric-hydraulic proportional velocity regulating valve; the electric-hydraulic proportional velocity regulating valve is connected with the bottom of the hydraulic cylinder; a port D of the three-position four-way vale is connected with the extension end of the hydraulic cylinder; and a speed detecting module is arranged on the car and is connected with the electric-hydraulic proportional velocity regulating valve via an amplifier. The hydraulic elevator system can correct the operation speed deviation of the car in real time, and can largely improve the car stability and reduce the elevator operation noise.

Description

technical field [0001] The invention relates to an ultra-quiet and stable hydraulic elevator system, which belongs to the technical field of elevators. Background technique [0002] Hydraulic elevators quickly seized a part of the domestic market with its advantages of flexible room layout, safety, reliability, and convenient maintenance. Existing hydraulic elevators generally include an oil cylinder, which is connected in turn with a hydraulic pump and an electromagnetic reversing valve. The electromagnetic reversing valve is connected to the bottom of the hydraulic cylinder through an oil circuit, and oil is injected into the bottom of the hydraulic cylinder through the oil pump when the elevator car rises. , and then start the electromagnetic reversing valve to realize the descent of the elevator by unloading oil. However, in this kind of elevator, there is a large deviation in the running speed of the car, poor stability of the car, and relatively high operating noise. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B9/04B66B11/04
CPCB66B9/04B66B11/0423
Inventor 姚逸峰庄奕君刘来忠赵敏王兵
Owner WEIBO ELEVATOR
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