Laser automatic distance measuring and recording system for dynamic compaction machine

Abstract

The invention provides a laser automatic range finding recording system of a dynamic consolidation machine. The system comprises a laser measuring device, a master control unit and a display unit, the laser measuring device is fixedly mounted on a base plate in a ground clearance below a main shaft gear of a hoist, and the master control unit and the display unit are mounted in a cab of the dynamic consolidation machine; the laser measuring device comprises laser emitters placed at the two sides of the main shaft gear of the hoist respectively and a double-path laser receiver including two photodiodes, and laser emitted by the laser emitters is radiated to the double-path laser receiver via slits between teeth of the gear; and the double-path laser receiver receives the laser signals emitted by the laser emitters and transmits the laser signals to the master control unit, and the master control unit calculates the real-time height and single consolidation depth of the dynamic consolidation machine according to the signals of the double-path laser receiver, and then transmits the calculated height and depth to the display unit for display. According to the invention, a hoisting structure of equipment is not changed, installation is simple, and the system is practical, stable, high in measuring precision and can be widely applied to engineering and construction.

Description

technical field [0001] The invention provides a laser automatic ranging recording system for a dynamic compaction machine, which belongs to the technical field of industrial automation measurement. Background technique [0002] The dynamic compaction method, also known as the dynamic consolidation method (Dynamic Consolidation), usually refers to repeatedly hoisting an 80-400kN hammer (the heaviest up to 2000kN) to a height of 8-25m (the highest Up to 40m), and then release the load with automatic decoupling or fall freely with a hammer to form a strong shock wave and high stress in the soil, thereby improving the strength of the foundation, reducing compressibility, improving the ability to resist vibration (shock) vibration and liquefaction, and eliminating collapsibility properties, improving soil uniformity, reducing differential settlement, etc. According to the national standard of the People's Republic of China GB50202-2002 "Code for Acceptance of Construction Qualit...

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Problems solved by technology

[0003] In the prior art, the height measurement of the rammer is realized through the detection device of the rope output of the hoisting mechanism of the dynamic tamping machine, the pressure sensor of the hydraulic oil circuit, and the linkage counting switch of the ramming control structure, so it is necessary to install multiple linkages Mechanical devices, and the detection of strong tamping settlement through pressure sensors, but can not measure the number of tamping, therefore, invent a method that can measure the tamping height, tamping times and tamping depth of the dynamic tamping machine The automatic measuring system for measuring becomes very urgent

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