Power head of vertical shaft type rock core drilling machine

Abstract

The invention provides a power head of a vertical shaft type rock core drilling machine. The power head comprises a power head shell which is connected with a transfer case, wherein compression and decompression oil cylinders are arranged at left and right sides of the power head shell; a vertical shaft guide pipe is arranged in the power head shell in the vertical direction; the vertical shaft guide pipe is internally provided with a vertical shaft; the upper end of the vertical shaft is connected with a hydraulic clamping disc; a pressing beam is arranged between the upper side of the vertical shaft and the hydraulic clamping disc; the left and right ends of the pressing beam are downward and are connected with the compression and decompression oil cylinders; left and right guide rods are downward arranged at the front part of the pressing beam; the power head shell has a guide hole which is matched with the left and right guide rods to play the guiding role; a middle transmission section of the vertical shaft is cylindrical and a columnar surface of the middle transmission section of the vertical shaft is provided with an outer involute spline; an inner involute spline which is matched with the vertical shaft for transmission is arranged on the inner wall of the vertical shaft guide pipe; and the machining process performance of an involute spline vertical shaft is good, the guide precision is high, the drilling precision is correspondingly improved and a clamped grinding phenomenon is not generated. The power head has the advantages that the service life is greatly prolonged, the power head is suitable for large-batch production, the forming of a complete set is rapid, and the like.

Description

technical field [0001] The invention relates to a geological exploration technology, in particular to a power head of a vertical shaft core drilling rig. Background technique [0002] The vertical shaft series core drilling rigs all continue to use the traditional "hexagonal vertical shaft". The disadvantages are: difficult to manufacture, and it is not easy to improve the equal division, flatness and smoothness of the six sides. In particular, the equal division, flatness, and smoothness of the six sides in the "vertical shaft catheter" are even worse. Due to low manufacturing precision and special structure, the hardness of 'quenching' cannot be improved. Then cause the drill rig to be easily strained and ground to death during the long-term work of the inner and outer six face angles. Contents of the invention [0003] The technical problem to be solved by the present invention is to propose a power head of a vertical shaft core drilling machine which is easy to manuf...

AI Technical Summary

Problems solved by technology

[0002] The vertical shaft series core drilling rigs all continue to use the traditional "hexagonal vertical shaft".

Due to low manufacturing precision and special structure, the hardness of 'quenching' cannot be improved

It will lead to the grinding of the inner and outer six face angles of the drilling rig during the long-term work, which is easy to be strained and ground to death.

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