A hydraulic control system and method for passenger boarding ladders based on energy recovery

A technology of hydraulic control system and energy recovery, which is applied in the direction of fluid pressure actuation system components, accumulator devices, mechanical equipment, etc., to reduce energy consumption, realize recycling and reuse, and reduce the amount of energy supplied

Active Publication Date: 2022-03-22
威海军之翼智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When evacuating the aircraft, the passenger boarding ladder does not need to retreat 15 meters before recovering the fixed ladder and sliding ladder

Method used

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  • A hydraulic control system and method for passenger boarding ladders based on energy recovery
  • A hydraulic control system and method for passenger boarding ladders based on energy recovery
  • A hydraulic control system and method for passenger boarding ladders based on energy recovery

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Experimental program
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specific Embodiment

[0085] Set the relevant parameter data of the passenger boarding ladder hydraulic system:

[0086] Recommend oil cylinder: diameter 80mm, stroke 4420mm

[0087] Lifting cylinder: diameter 100mm, stroke 180mm

[0088] Support cylinder: diameter 80mm, stroke 230mm

[0089] Tail ladder oil cylinder: diameter 40mm, stroke 160mm

[0090] Platform cylinder: diameter 50mm, stroke 500mm

[0091] The above diameters are the inner diameter of the oil cylinder, that is, the diameter in the rodless cavity

[0092] Total body weight: 8500kg

[0093] Slide ladder: 2000kg

[0094] Fixed ladder: 1200kg

[0095] by the formula The pressure required for the normal work of the support, push and lift cylinders can be obtained:

[0096] Support cylinder:

[0097] Push cylinder:

[0098] Lifting cylinder:

[0099] By the formula V=πR 2 H can calculate the amount of hydraulic oil (total energy) required for lifting, pushing, supporting, tail ladder, and platform cylinders to work ...

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Abstract

The invention discloses a hydraulic control system and method for passenger boarding ladders based on energy recovery, which utilizes two main oil cylinders, an elevating oil cylinder and a hoisting oil cylinder, to recover potential energy for driving the support, tail ladder and platform extension and retraction, and solves the problem of current boarding ladders. The problem that most of the gravitational potential energy released during the descending process cannot be used and is consumed in vain reduces the economic cost. The excess energy can also be stored in the accumulator, which is controlled by the electromagnetic reversing valve to realize the controllability of the energy release of the accumulator. The hydraulic system retains the separate working process of each oil cylinder when the existing passenger boarding ladder is docked with the aircraft, which changes the working process that the passenger boarding ladder does not need to move back 15 meters and then recover the fixed ladder and sliding ladder when evacuating the aircraft. It not only saves the time for the vehicle to evacuate the aircraft, but also improves the economic efficiency.

Description

technical field [0001] The invention relates to the technical field of airport ground equipment, in particular to a hydraulic system and a control method for recovering and reusing potential energy of passenger boarding ladders. Background technique [0002] The passenger boarding ladder is a common airport special equipment for passengers to get on and off the plane. After the plane is parked at the airport, the passenger boarding ladder is docked with the cabin door of the aircraft to facilitate passengers to get on and off the plane. Passenger boarding ladders include sliding ladders, fixed ladders, tail ladders, platforms and supports. At present, when passenger boarding ladders are docked with aircrafts, the sliding ladders need to be raised first, then the fixed ladders, and then the supports And the tail ladder, and finally the platform is stretched out to dock with the hatch. When the passenger boarding ladder evacuates the aircraft, in order to ensure the safety of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B1/02F15B13/08F15B13/044F15B21/041F15B21/14B64F1/315
CPCF15B1/024F15B13/0807F15B21/041F15B21/14B64F1/315F15B2013/0448F15B2211/20576
Inventor 韩云武刘宁韩燊睿张自军
Owner 威海军之翼智能科技有限公司
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