GEODETIC BASES FOR IMPROVEMENT OF GEODETIC CONTROL OF LIFTING AND TRANSPORT EQUIPMENT
Journal Title: Вестник Харьковского национального автомобильно-дорожного университета - Year 2019, Vol 84, Issue
Abstract
The theoretical work on the method of determining the deformation of the running wheels of bridge and gantry cranes is presented. The measurement procedure can be performed, both in production and in the manufacture, installation of crane equipment at manufacturers' plants. The existing methods of geodetic measurements, based mainly on linear measurements (lateral leveling), are considered, when determining the angles of inclination of running wheels of bridge and gantry electric cranes, as well as the angles of skew of the end beams. It was concluded that in the existing methods of measuring the angles of the inclination of the running wheels and the angles of the inclination of the end beams, the accuracy of the determination of these parameters does not always satisfy the permissible values, according to normative documents. The disadvantages of installations include the fact that they are poorly or almost not adapted to the specific production conditions in which measurements have to be made and do not provide continuous visual inspection when installing or correcting the running wheels and end beams. Fundamentally new measurement technologies are proposed and developed, providing with the required accuracy continuous visual inspection of structural deformations of lifting and transport equipment. The main point of the proposed theoretical development is that the directed laser beam on the mirror plane is mapped when the mirror plane rotates by the value of the double angle. Using the set scale on the source of radiation, you can determine the count for the global reflection of the beam, and also measure the distance from the scale to the plane of the mirror, determine the required angle of rotation of the mirror. It has been determined that such technology can completely resemble determining the angles of inclination of running wheels and end beams of lifting and transport equipment. The mathematical calculation and the mean square error of measurement of the angles of inclination of the running wheels of the crane have been fulfilled. The proposed estimation of accuracy meets the conditions of the tolerances of limit errors completely according to the existing norms. The conclusions are drawn and it is determined that the main advantages of the developed theoretical proposals are the high accuracy of measurements, as well as the possibility of continuous visual observation of the changes.
Authors and Affiliations
T. A. Nalivayko, T. Nalyvayko
Keywords
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- EP ID EP553231
- DOI 10.30977/BUL.2219-5548.2019.84.0.62
- Views 107
- Downloads 0
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