An all-terrain crane and its center of gravity monitoring device and method

Abstract

The invention discloses a center-of-gravity monitoring device of an all-terrain crane. The center-of-gravity monitoring device comprises a sensor and a controller, wherein the sensor is used for obtaining pressure information of a suspension oil cylinder of a crane chassis; the controller is used for obtaining shaft load distribution information of shafts and weight information of the whole crane according to a relation between the pressure information and the stress of the suspension oil cylinder, obtaining coordinates of the actual center of gravity of the crane in X and Y directions according to the shaft load distribution information of all the shafts and further obtaining a coordinate of the actual center of gravity of the crane in a Z direction according to the weight information of the whole crane; the controller is used for judging whether the actual center of gravity of the crane deviates from a safe range by comparing the position of the actual center of gravity of the crane in a three-dimensional coordinate system with a theoretical position under corresponding working conditions. The device can be used for monitoring and controlling the center of gravity of the all-terrain crane, thereby improving the stability and the safety of the all-terrain crane under different working conditions. The invention further provides a center-of-gravity monitoring method and the all-terrain crane to which the center-of-gravity monitoring device is applied.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a center of gravity monitoring device and method of an all-terrain crane. The invention also relates to an all terrain crane provided with said center of gravity monitoring device. Background technique [0002] All-terrain cranes, also known as all-terrain cranes, are high-performance products that combine the characteristics of truck cranes and rough-terrain cranes. It can not only transfer quickly and travel long distances like a truck crane, but also meet the requirements of working on narrow and rough or muddy sites. It has fast driving speed, multi-axle drive, all-wheel steering, multiple steering methods, It is a product with great development prospects because of its large clearance, high climbing ability, and the need for lifting weights without outriggers. [0003] At present, all-terrain cranes are widely used in large-scale hoisting constructions such a...

AI Technical Summary

Problems solved by technology

[0005] When the all-terrain crane is converted from one working condition to another, there are many parts that need to be disassembled or assembled and it is time-consuming

Therefore, there are a large number of cases where the operation is not carried out according to the regulations in the operation manual when the vehicle is transferred, resulting in the vehicle being in an overloaded driving state during the transfer, and even the center of gravity is seriously shifted.

[0006] When the center of gravity of the all-terrain crane shifts, the uneven distribution of the axle load is serious, and the damage to the transmission system, structural parts, and traveling mechanism is in an unknown state. Because there are no corresponding protection measures to control the damage, and the site The complexity of the road surface can easily cause the crane to tip over

[0007] To sum up, during the use of all-terrain cranes, the traditional technology has no monitoring and alarm prompts for its center of gravity, let alone relevant control measures, which may easily lead to dangerous accidents such as shifting of the vehicle's center of gravity or even overturning, causing major damage to users and manufacturers. economic loss

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