Lifting mechanism of long spiral drilling machine

By symmetrically arranging the fixed pulley system and auxiliary winding wire rope to assist in lifting, the problems of insufficient lifting force and deformation of the drill mast in the existing technology are solved, and the lifting force and structural stability of the long spiral drilling rig are improved.

CN223387269UActive Publication Date: 2025-09-26HEBEI NEW DIRECTION INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202422030723.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-21
Publication Date
2025-09-26
Estimated Expiration
2034-08-21

AI Technical Summary

Technical Problem

The single-rate pulley system of the existing long spiral drilling rig hoisting mechanism causes the drill mast to undergo significant deformation, affecting construction efficiency. The asymmetric structure also causes deformation of the drill mast and instability of the entire machine.

Method used

A symmetrically arranged fixed pulley system is adopted, including fixed pulley 1, fixed pulley 2, fixed pulley 3, fixed pulley 4, auxiliary reel fixed pulley 1, and auxiliary reel fixed pulley 3. The power head slides along the mast guide rail, and the main reel wire rope passes around multiple pulleys to achieve a 2-fold lifting rate, and the auxiliary reel wire rope is used to assist in lifting.

Benefits of technology

It achieves a 2-fold increase in lifting force, reduces the bending stress of the drill mast, improves the structural stability of the entire machine, and enhances construction efficiency.

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Abstract

The utility model belongs to the field of engineering machinery, and particularly relates to a lifting mechanism of a long spiral drilling machine. Comprising a drilling mast and a gooseneck boom, the drilling mast and the gooseneck boom are connected through pin shafts at the two ends, a first fixed pulley, a second fixed pulley, a third fixed pulley, a fourth fixed pulley, a first auxiliary reel fixed pulley and a third auxiliary reel fixed pulley are arranged on the gooseneck boom in the vertical direction, and a second auxiliary reel fixed pulley is arranged on the gooseneck boom in the horizontal direction; the power head can slide up and down on the mast along the mast guide rail; a main winding steel wire rope comes out of the main winch, sequentially winds around a third fixed pulley, a second fixed pulley, a power head movable pulley, a first fixed pulley and a fourth fixed pulley and then is fixed to the drilling mast. The auxiliary reel steel wire rope comes out of the auxiliary winch and sequentially bypasses the first auxiliary reel fixed pulley, the second auxiliary reel fixed pulley and the third auxiliary reel fixed pulley. According to the lifting mechanism of the long spiral drilling machine, the lifting force can be increased by two times, the drilling mast can bear small bending stress due to the reasonable structural arrangement, and the stability of the whole machine structure is facilitated.
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