Lifting and leveling system for cross-arm assisted aerial work platforms

By designing a lifting and leveling system for cross-arm-assisted aerial work platforms, the problems of high labor intensity, high risk and low work efficiency in the existing technology when installing cross-arms are solved, and stable and efficient operation is achieved in complex terrain.

CN119079912BActive Publication Date: 2025-09-23STATE GRID HUNAN ELECTRIC POWER COMPANY LIMITED +1
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Patent Information

Application Number
CN202411499355.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2025-09-23
Estimated Expiration
2044-10-25

AI Technical Summary

Technical Problem

Existing aerial work platforms have problems such as high labor intensity, high risk, low work efficiency, high cost and poor passability when installing crossarms, especially in complex terrain environments where stable operation is difficult.

Method used

A lifting and leveling system for a cross-arm-assisted aerial work platform is designed. It includes a hydraulic system, a power unit, a control unit, and an actuator unit. Through the coordinated control of the leveling cylinder, the boom luffing cylinder, and the swing cylinder, combined with an overpressure protection device and a pressure stabilizing device, precise control of the work platform's posture and improved stability are achieved.

Benefits of technology

It achieves precise posture control of the working platform, improves operational convenience and safety, reduces equipment costs, and enhances passability and stability in complex terrain.

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Abstract

A lifting and leveling system for a cross-arm assisted aerial work platform includes a power unit, a control unit and an execution unit; the power unit includes a coupling connected to the engine flywheel, a hydraulic pump driven by the coupling and an oil tank connected to the oil inlet of the hydraulic pump; the execution unit includes a leveling cylinder, a flying arm luffing cylinder and a swing cylinder; the control unit includes a multi-way valve, an overpressure protection device, a pressure stabilizing device, an electrically controlled reversing valve and a back pressure valve, the multi-way valve includes a first valve, a first electromagnetic reversing valve and a second electromagnetic reversing valve, the first electromagnetic reversing valve is connected to the leveling cylinder in turn through the overpressure protection device and the pressure stabilizing device, for controlling the movement of the leveling cylinder, the second electromagnetic reversing valve is connected to the flying arm luffing cylinder and the swing cylinder respectively through the electrically controlled reversing valve, for controlling the swinging of the swing cylinder and the luffing movement of the flying arm luffing cylinder. The present invention can accurately control the posture of the working platform and is convenient for operation and maintenance.
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