A drilling machine for engineering supervision

Abstract

The invention discloses a rod sounding machine for engineering supervision, which relates to the technical field of building exploration equipment. The rod sounding machine includes a rack, a lifting mechanism, and a ramming rod mechanism, wherein the lifting mechanism and the ramming rod mechanism are respectively arranged on the rack, the lifting mechanism is connected with a rammer, the rod sounding mechanism includes a drilling rod, a ramming part fixedly arranged on the drilling rod, a limit piece fixedly connected with the drilling rod and a vertical guide rail fixedly arranged on the rack, the ramming part is slidably arranged on the vertical guide rail in the length direction of the vertical guide rail, the rammer reciprocates between the limit piece and the ramming part through a lifting mechanism, an actuating switch is arranged on the limit piece and electrically connected with the lifting mechanism, the ramming part is provided with a pressure sensor, and the pressure sensor is electrically connected with the lifting mechanism. According to the rod sounding machine, the accuracy of test data and the construction quality are improved.

Description

technical field [0001] The invention relates to the technical field of construction exploration equipment, more specifically, it relates to a drilling machine for engineering supervision. Background technique [0002] Before the construction of the building, it is necessary to explore the condition of the foundation soil layer to understand the condition of the soil layer; at present, the commonly used method is to drill and detect. The method is to manually lift an 8-10-pound hammer to a height of 70-80cm Then it falls freely, and the steel drill is driven into the soil layer little by little, every 30-50cm is a section, and there are five sections in total, with a depth of 1.5-2.5m. Record the number of hammers for each section. If the number of hammers for each section is the same, it means that the soil layer is uniform. If the number of hammers for one section is less, it means that there are loose or hollow underground structures in the soil layer of this section. [...

AI Technical Summary

Problems solved by technology

[0004] By using the extension pin set on the circulating chain to move the drop hammer to rise along the guide rod, when it rises to the specified height, when the extension pin on the chain starts to make a circular motion around the sprocket, the drop hammer will fall off and complete a hammer strike. When the extension pin on the chain turns to contact with the falling hammer again, it hangs the falling hammer to rise along the guide rod again, and repeats this to achieve hammering again and again; but this method cannot control each falling hammer well during the rising process. The stable distance from the brazing probe leads to inaccurate detection data

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