Aerial work vehicle with self-stabilizing system and self-stabilizing control method thereof

Abstract

The invention discloses an aerial work vehicle with a self-stabilizing system and a self-stabilizing control method thereof. The aerial work vehicle comprises a vehicle body assembly, a boom support, a boom assembly, hydraulic support legs and the self-stabilizing control system. The self-stabilizing control system comprises a balance weight device, a control box, a hydraulic support leg horizontal variable displacement sensor, a boom luffing angle sensor and a boom luffing oil cylinder pressure sensor. The balance weight device comprises a balance weight, a sliding guide mechanism and a balance weight push-pull hydraulic cylinder. In the working state of the aerial work vehicle with the self-stabilizing system, the balance weight is controlled to move according to feedback of all the sensors, so that the balance weight generates stabilizing moment to balance overturning moment generated by an operation platform, and then self-stabilizing control is achieved; the maximum operation height and operation amplitude in the complete-stretching state of the horizontal support legs under different horizontal support leg spans can be obtained; and the aerial work vehicle with the self-stabilizing system is especially suitable for conducting aerial work on narrow roads or small-space sites.

Description

technical field [0001] The invention relates to an aerial work vehicle and a control method, in particular to an aerial work vehicle with a self-stabilizing system and a self-stabilizing control method thereof, belonging to the technical field of aerial work vehicles. Background technique [0002] The high-altitude operation vehicle is a special special vehicle for transporting staff and equipment to the high altitude for installation, maintenance, and cleaning of equipment located at high altitudes. Compared with traditional operating methods such as scaffolding and ladders, it has good operating performance, high operating efficiency, Safety and other advantages are widely used in infrastructure industries such as electric power, transportation, petrochemical, communication, and gardening. [0003] At present, in terms of operational stability, the domestic aerial work vehicles mainly use the counter moment formed by the self-weight of the body on the outriggers to balance...

AI Technical Summary

Problems solved by technology

[0003] At present, in terms of operational stability, the domestic aerial work vehicles mainly use the counter moment formed by the self-weight of the body on the outriggers to balance the moment generated by the operating platform to achieve the stability of its operation. The continuous increase of aerial work vehicles requires that the operating height and range of aerial work vehicles also continue to increase, which in turn causes the outrigger span of aerial work vehicles to become larger and larger, but a larger outrigger span not only requires a larger work site space , and the larger outrigger span is likely to cause deformation of the frame, thereby affecting the safety of the operation

[0004] In order to adapt to different working environments, the existing aerial work vehicles usually manage the span of the horizontal outriggers in different levels, which are usually divided into three working conditions: fully extended, half-extended and non-extended horizontal outriggers. There are three different operating performance curves corresponding to each operating condition, which is often the operating environment that is adapted to the sacrifice of operating height and operating range. Taking the 18-meter high-altitude operating vehicle as an example, the maximum operating range when the horizontal outriggers are fully extended is 12 meters, the maximum operating height is 18 meters, the operating height is 12.5 meters when the operating range is 9 meters, and the operating height is 16 meters when the operating range is 6 meters; the maximum operating range when the horizontal outrigger is half extended is 9 meters, the operating height at this time is only 6 meters; the maximum operating range is 6 meters when the horizontal outriggers are not extended, and the operating height is only 6 meters at this time, and can only work in the rear area. When performing high-altitude operations on narrow roads or places with relatively small spaces, the corresponding working height and range under the condition of half-extended and non-extended horizontal outriggers often cannot meet the requirements of use, and can only use climbing ladders or other equipment to complete high-altitude operations. , which is a serious violation of the safe operation rules for working at heights, the operation is extremely unsafe and has high potential safety hazards, and personal injury or death accidents may occur in severe cases

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