Portable electric seismic source device for shallow seismic exploration

Abstract

The invention provides a portable electric seismic source device for shallow seismic exploration, which comprises a chassis base, a support frame, a storage battery, an energy storage spring, a heavy hammer assembly and a driving assembly, and is characterized in that the support frame is fixed in the middle of the chassis base, and the heavy hammer assembly and the driving assembly are arranged on the support frame; the supporting frame comprises a plurality of stand columns and cross beams, the heavy hammer assembly comprises an upper connecting plate and a hammering rod, the hammering rod is sleeved with the upper connecting plate, stand column holes of the upper connecting plate are connected with the stand columns in a penetrating mode, and the stand columns are connected with the hammering rod in a sliding mode; an energy storage spring is arranged between the upper connecting plate and the cross beam; a motor in the driving assembly is in transmission connection with the input end of a speed reducer through a driving shaft, the driving shaft is arranged in a driving shaft barrel in a penetrating mode, the driving shaft barrel is in transmission connection with the output end of the speed reducer, a driving wheel arranged outside the driving shaft barrel is in transmission connection with a driven wheel arranged outside a driven shaft through a chain, and a stop pin of the chain can abut against a clamping block on the side portion of a hammering rod. The invention has the advantages of large impact energy, flexible control, high signal-to-noise ratio and various triggering styles.

Description

technical field [0001] The invention relates to the technical field of seismic exploration, in particular to a portable electric vibratory source device for shallow seismic exploration. Background technique [0002] Shallow seismic exploration technology refers to the exploration method that uses the propagation characteristics of seismic waves in different rocks and soils to detect the geological structure of the shallow crust (usually tens to hundreds of meters) and determine the physical and mechanical parameters of rock and soil. It is mainly used in Geophysical information detection, mineral census and exploration, oil and gas field development engineering and urban underground space exploration are one of the important methods for geological exploration, engineering, hydrology and environmental exploration, with the advantages of large detection depth, non-destructive environmental protection and high resolution. The excitation of seismic waves by the seismic source is...

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned patent uses a driving mechanism to drive the weight to the highest point, and releases the weight to hit the ground, it can realize the functions of simple structure, convenient disassembly and portability, but there is no energy storage device, and the speed and impact energy of the weight are relatively small. Turbine reducer, low mechanical efficiency, no control module, less flexible handling; no protection limit for stroke, easy to overtravel and damage the structure, and the heavy hammer is not equipped with a guiding structure, prone to center of gravity deviation, causing the heavy hammer to rub against the guide rail bracket Larger damage

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