Elevator single brake set redundancy hydraulic control loop

A technology of control loop and brake, applied in the direction of hoisting device, etc., can solve the problems of low braking pressure control accuracy, poor safety redundancy of hydraulic circuit, slow response, etc., so as to improve the safety redundancy and response of the system. Good characteristics and system stability, high pressure control effect

Active Publication Date: 2018-07-20
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, for the hoist brake system, there are still problems such as low brake pressure control accuracy, slow response, and poor safety redundancy of the hydraulic circuit.

Method used

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  • Elevator single brake set redundancy hydraulic control loop

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Embodiment Construction

[0011] Introduce detailed technical scheme of the present invention below in conjunction with accompanying drawing:

[0012] Redundant hydraulic control circuit for hoist single brake group, including: E1 brake pressure regulating valve 1, E2 brake pressure regulating valve 2, E3 brake pressure regulating valve 3, 3 pressure sensors 4, 3 A1 electromagnetic reversing valve 5, three A3 electromagnetic reversing valves 6, controller 10, three C1 electromagnetic reversing valves 11, D single brake group 12 and oil source 13; among them, D single brake group and Including: D1 brake 7, D2 brake 8 and D3 brake 9.

[0013] The oil source is respectively connected to the oil inlet ports of E1 brake pressure regulating valve, E2 brake pressure regulating valve and E3 brake pressure regulating valve through pipelines; E1 brake pressure regulating valve, E2 brake pressure regulating valve Pressure sensors are respectively installed at the oil outlets of valve and E3 brake pressure regula...

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Abstract

The invention discloses an elevator single brake set redundancy hydraulic control loop. The elevator single brake set redundancy hydraulic control loop comprises three brake pressure adjusting valves,three pressure sensors, three A1 electromagnetic reversing valves, three A3 electromagnetic reversing valves, a controller, three C1 electromagnetic reversing valves, a single brake set and an oil source. By reasonably arranging the brake pressure adjusting valves, the volume of a control containing cavity is decreased, and the pressure of the single set of brakes is controlled by the separate brake pressure adjusting valves, so that the dynamic response characteristic, control precision and stability of the pressure are improved. The elevator single brake set redundancy hydraulic control loop has the advantages of high pressure control precision, good response characteristic and system stability, safety redundancy and the like.

Description

technical field [0001] The invention belongs to the technical field of hoisting equipment, and in particular relates to a redundant hydraulic control circuit of a single brake group of a hoist. Background technique [0002] Hoists are widely used in oil drilling, road construction, lifting and mine hoisting, etc., and are responsible for important tasks such as lifting and lowering personnel and materials. The emergency braking system of the hoist is directly related to production efficiency, production safety and personnel safety. Therefore, how to develop a hydraulic braking system with the advantages of good safety performance, adjustable braking torque, high sensitivity, and compact structure has become an important research direction and research focus of large winch hydraulic braking systems. At present, the hydraulic braking system of the hoist mostly uses electro-hydraulic proportional reversing valves and servo proportional valves to control the braking pressure. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D5/14B66D5/26
CPCB66D5/14B66D5/26B66D2700/035
Inventor 黄家海郝惠敏王鹤贺亚彬
Owner TAIYUAN UNIV OF TECH
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