Hydraulic power head for core sampling drilling machine and core sampling drilling machine

Abstract

The invention discloses a hydraulic power head for a core sampling drilling machine. A first power source drives a left transmission shaft and a left gear, a second power source drives a right transmission shaft and a right gear, and then the power torque is output to an intermediate output shaft through matching transmission of the left gear, a middle gear and the right gear, so that a drill rodtwisting joint and a casing pipe twisting joint in the intermediate output shaft are driven to rotate. The hydraulic power head is applied and has the beneficial effects that functions of two drill rods or / and casing pipes with different diameters can be automatically and alternately provided through a power head rotating and twisting mode in the drilling process; the invention further discloses acore sampling drilling machine which comprises the hydraulic power head, the core sampling drilling machine has the effects that stepless speed regulation can be realized through closed-loop control,parameters such as torque, rotating speed, feeding force and lifting force can be monitored in real time, the complicated operation of manually applying a casing pipe is avoided, and the constructionefficiency and the construction safety are greatly improved.

Description

technical field [0001] The invention belongs to the field of geological engineering exploration equipment, and in particular relates to a hydraulic power head for a core sampling drilling rig and a core sampling drilling rig. Background technique [0002] In the exploration of mineral resources in the field and infrastructure construction such as urban subways and skyscrapers, core sampling drilling rigs are often used in geological engineering to investigate the distribution of resources in the mining area and the structure of the urban surface soil layer, which is convenient for mining mineral resources and determining construction piles. base depth. [0003] During the core sampling drilling process, the core sampling drilling rig needs to rely on the rotation and twisting of the power head to install drill pipes in sequence until the required drilling depth is reached. However, in order to prevent the hole wall of the drilled soft soil layer from collapsing during const...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the fact that the power head of the core sampling drilling rig cannot automatically and alternately distribute drill pipes and casings of two different specifications (diameters) by means of rotation and twisting, and cannot steplessly adjust the speed, real-time monitoring of torque, speed, feed force and lifting force, etc. Due to the shortcomings of parameter information, a hydraulic power head for core sampling drilling rig is now proposed, the details are as follows:

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