Regulation control system, method and device for suspension of wheel crane and wheel crane

Abstract

The invention relates to the technical field of hoisting machinery, and discloses a regulation control system, method and device for a suspension of a wheel crane and the wheel crane. The regulation control system for the suspension of the wheel crane comprises a transition switch, an angle sensor, a length detection device, suspension oil cylinder control valves and a control device, wherein the suspension oil cylinder control valves correspond to suspension oil cylinders respectively. When the transition switch detects that the wheel crane is in the transition working condition, and the angle sensor detects that the included angle between a frame and the horizontal direction is no smaller than a set angle threshold valve, a speed limiting signal is output to an engine, and is used for controlling the wheel crane to run within a set safety speed range; the regulating length of an oil rod of each suspension oil cylinder is determined according to the included angle between the frame and the horizontal direction, and the extension length of the oil rod of each suspension oil cylinder, and a corresponding oil rod length regulating signal is output to each suspension oil cylinder control valve so that the included angle between the frame and the horizontal direction can be smaller than the set angle threshold valve. Balance performance of a chassis of the wheel crane is improved, and safety of the transition operation process of the wheel crane is improved.

Description

technical field [0001] The invention relates to the technical field of hoisting machinery, in particular to a wheeled crane suspension adjustment control system, method, device and wheeled crane. Background technique [0002] Wheeled cranes are mounted on ordinary car chassis or special chassis and can travel on the road by themselves. They are especially suitable for lifting operations in freight yards, docks, and various construction sites. They have the largest output and are most widely used. type of crane. The chassis structure of existing wheeled cranes usually includes: vehicle frame, axle, gearbox, tires and suspension. Suspension is the general name of the force transmission connection device between the vehicle frame and the vehicle axle. The force and torque between the frame and the frame can buffer the impact force transmitted from the uneven road to the frame or body, and adjust the balance performance of the chassis to ensure that the car can run smoothly. It...

AI Technical Summary

Problems solved by technology

[0003] With the development of society, wheeled cranes are often required to carry out transition operations between certain short-distance workplaces. When heavy objects (such as the truss arm in the lifting state) are very likely to affect the balance performance of the chassis of the wheeled crane, and then affect the balance of the wheeled crane vehicle, and even cause safety accidents in which the vehicle overturns during driving

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