Crane wheel load testing device and method

Abstract

Provided is a crane wheel load testing device. The device comprises a magnetized coil current and an anisotropic property output coil used for extracting magnetic characteristic anisotropic effect of a tested point; the device is further provided with an oscillating circuit, and the oscillating circuit is connected to the magnetized coil current through an amplifying circuit; the anisotropic property output coil is connected to a bridge rectifier circuit through the amplifying circuit, the magnetized coil current is also electrically connected to the bridge rectifier circuit, and the bridge rectifier circuit is connected to a signal acquisition and processing circuit; the other end of the signal acquisition and processing circuit is further in communication connection to a data acquisition module, and the data acquisition module is in communication connection to a computer system. The invention further discloses a crane wheel load testing method. According to the crane wheel load testing device and method, there is no need for surface treatment, non-contact measuring can be achieved, the measuring efficiency is high, the result is an absolute value, the measuring method is simple, there is no consumed materials, the measuring cost is low, the measuring precision is high, and measuring to the distribution of crane wheels can be achieved.

Description

technical field [0001] The invention relates to a wheel pressure test device, in particular to a crane wheel pressure test device, and also relates to a method for using the device to perform wheel pressure test. Background technique [0002] Crane wheel pressure is a key important parameter in the design of hoisting machinery, generally refers to the vertical pressure of a wheel on the ground or rail surface. The maximum value of the wheel pressure not only affects the mechanism design of the crane, such as the size and number of wheels, but also affects the design of the bridge frame, gantry structure and foundation pressure bearing capacity of the crane. [0003] In traditional crane design, the wheel pressure is calculated according to the static balance equation based on the crane’s self-weight, span, hoisting weight, etc. according to the design manual; The distribution of is also related to the rigidity of the structure, so the accuracy of the wheel pressure value ca...

AI Technical Summary

Problems solved by technology

[0009] At present, domestic designers use empirical formulas and data based on classical mechanics, which cannot meet the requirements of optimal performance and lightweight design of hoisting machinery

Engineering practice requires a more accurate maximum wheel pressure value, but now most crane wheel pressure distribution is statically indeterminate, and its distribution is related to the structure of the crane, foundation stiffness, manufacturing accuracy and track flatness, so direct accurate measurement or theoretical calculation is required It is very difficult, so it is necessary to study a method and device that can accurately and conveniently test the maximum wheel pressure of hoisting machinery

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