A micro-deformation detection device for a double-girder crane trolley

Abstract

The patent of the present invention belongs to the field of double-girder crane devices, and specifically discloses a micro-deformation detection device for a double-girder crane trolley, including: laser transmitters and photosensitive receiving lattices respectively installed at both ends of the steel beams on each side of the double-girder crane trolley. The photosensitive receiving dot matrix includes a plurality of photosensitive triodes, and the photosensitive triodes are connected with a microcontroller through an interface circuit; the interface circuit is an AND circuit connected in parallel by a plurality of diodes; the microcontroller according to the According to the laser light signal received by the photosensitive receiving dot matrix, the position information of multiple laser irradiation points is obtained; and according to the position information and the distance between adjacent photosensitive three-stage tubes, the offset distance information of the corresponding laser irradiation point is obtained; and according to The offset distance information obtains the offset angle information of the corresponding laser irradiation point. Through the above technical proposal, the present invention accurately detects the micro-deformation of the double-girder crane trolley, and avoids the rail gnawing phenomenon of the crane trolley.

Description

technical field [0001] The patent of the present invention relates to the field of double-girder crane devices, in particular to a micro-deformation detection device for a double-girder crane trolley. Background technique [0002] Double-girder cranes generally refer to double-girder bridge cranes. Double-girder bridge cranes are important tools and equipment for mechanization and automation of the production process in modern industrial production and lifting transportation. Therefore, double-girder bridge cranes are widely used in indoor and outdoor industrial and mining enterprises, It is widely used in iron and steel chemical industry, railway transportation, port terminals and logistics turnover and other departments and places. As a commonly used large-tonnage hoisting machinery, double-girder cranes occupy an important position in the hoisting industry. [0003] Double-girder cranes are generally composed of three major parts: mechanical, electrical and metal structu...

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Problems solved by technology

[0007] However, as mentioned above, figure 1 The span between the driving wheel and the driven wheel of the crane trolley is relatively large. When the user uses it, if there are many goods loaded, it is easy to cause deformation of the longitudinal and beams of the trolley, so that the data received by the laser receiver If there is a mistake, misjudgment will occur, which will affect the accuracy of the detection device; some crane manufacturers have improved the operating performance of the crane by increasing the strength of the crane trolley, but they still cannot fundamentally change the phenomenon of the crane trolley gnawing on the rails.

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