Drilling bucket anti-clamping device for drilling machine

Abstract

The invention discloses a drilling bucket anti-clamping device for a drilling machine. The drilling bucket anti-clamping device comprises a protective cylinder and a drilling bucket body, wherein theprotective cylinder is correspondingly arranged at the top of the drilling bucket body in a sleeving manner; an auxiliary supporting frame is additionally arranged on the outer side of the lower halfcylinder body of the protective cylinder in a fixed manner; two left moving positioning rollers are correspondingly mounted on a left L-shaped clamping plate in a rotating manner; two right moving positioning rollers are correspondingly mounted on a right L-shaped clamping plate in a rotating manner; a first pinion is matched with the upper tooth surface of a lower transmission rack in a gear-rackmeshing manner; a first gearwheel is arranged right behind the first pinion; a second gearwheel is arranged right behind a second pinion; and the second gearwheel and the second pinion are coaxiallyand integrally arranged in a rotating manner. The drilling bucket anti-clamping device is good in deviation rectifying effect; the drilling bucket body can rise along the central axis of the protective cylinder; and the drilling bucket body and the protective cylinder are positioned on the same central axis, so that the smoothness of the rising work of a drilling bucket is guaranteed.

Description

technical field [0001] The invention relates to the related technical field of drilling rig equipment, in particular to a drilling bucket anti-jamming device for a drilling rig. Background technique [0002] Because of its high efficiency, less pollution, and many functions, the rotary drilling rig adheres to the concept of people-oriented and environmental protection while adapting to the current pursuit of high-speed economic development. Therefore, it has occupied the main force in the construction of cast-in-place concrete piles at home and abroad. The status of the model; due to the special hole-forming process of the rotary drilling rig and the multiple reciprocations of the drill bit, and the gap between the drill pipe connections of the rotary drilling rig is very large, when the depth of the drilling tool rotary drilling exceeds the depth of the casing When deep or encountering uneven rock, the drilling tool will deviate, and when the drill pipe is retracted, the dr...

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Problems solved by technology

[0002] Because of its high efficiency, less pollution, and many functions, the rotary drilling rig adheres to the concept of people-oriented and environmental protection while adapting to the current pursuit of high-speed economic development. Therefore, it has occupied the main force in the construction of cast-in-place concrete piles at home and abroad. The status of the model; due to the special hole-forming process of the rotary drilling rig and the multiple reciprocations of the drill bit, and the gap between the drill pipe connections of the rotary drilling rig is very large, when the depth of the drilling tool rotary drilling exceeds the depth of the casing When deep or encountering uneven rock, the drilling tool will deviate, and when the drill pipe is retracted, the drill bucket will be stuck at the lower end of the casing and cannot be retracted. Therefore, it is necessary to propose an effective solution to solve the above problems

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