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A rotary drilling rig

A technology of rotary drilling rig and drilling mechanism, which is applied in the direction of drill pipe, drill pipe, drill bit, etc., which can solve the problems of limited operation range, low operation efficiency, and limited drilling depth, and achieve wide operation range, high operation efficiency, The effect of increasing the drilling depth

Active Publication Date: 2021-07-02
北京中新基业国际贸易有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When drilling with existing rotary drilling rigs, it is necessary to continuously lift the drill bit out of the hole to unload the soil. Continuous drilling cannot be realized, and the operation efficiency is low. Moreover, the structure of the existing rotary drilling rig is fixed and cannot be extended, resulting in limited drilling depth. limited scope of work

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Embodiment Construction

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. .

[0033] It should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" are Based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the inventive product is usually placed in use, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must Having a particular orientation, being constructed and operating in...

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Abstract

The invention discloses a rotary drilling rig, which comprises a main body of the rotary drilling rig, a pitch mechanism, a mast, and a drilling mechanism. The drilling mechanism includes a first lifting drive assembly, a first rotary drive assembly, a second rotary drive assembly, a drill bit The inner ring, the outer ring of the drill bit, the screw rod, the auger bit, and the discharge drilling assembly; the main body of the rotary drilling rig is connected to the mast through the pitch mechanism, and the first lifting drive assembly is installed above the mast , the first rotary drive assembly is connected to the first lifting drive assembly, the second rotary drive assembly is installed below the mast; one end of the outer ring of the drill bit rotates with the first lifting drive assembly Connection; one end of the screw is connected with the first rotary drive assembly. The invention realizes the function of automatic mud discharge during drilling, realizes continuous drilling, and at the same time, the screw rod and the outer ring of the drill bit can be lengthened, the drilling depth is increased, and the operation range is wide.

Description

technical field [0001] The invention relates to the technical field of construction machinery equipment, in particular to a rotary drilling rig. Background technique [0002] Rotary drilling rig is a construction machine suitable for hole-forming operations in building foundation engineering. It is mainly suitable for the construction of sandy soil, cohesive soil, silty soil and other soil layers, and is widely used in various foundation constructions such as cast-in-place piles, diaphragm walls, and foundation reinforcement. When drilling with existing rotary drilling rigs, it is necessary to continuously lift the drill bit out of the hole to unload the soil. Continuous drilling cannot be realized, and the operation efficiency is low. Moreover, the structure of the existing rotary drilling rig is fixed and cannot be extended, resulting in limited drilling depth. The scope of work is limited. Contents of the invention [0003] The purpose of the present invention is to o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/02E21B10/44E21B17/22E21B19/02
CPCE21B7/02E21B10/44E21B17/22E21B19/02
Inventor 王小豪
Owner 北京中新基业国际贸易有限公司
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