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Low rotary drilling rig with telescopic drilling mast

A rotary drilling rig, telescopic technology, applied in drilling equipment, earthwork drilling, drilling equipment and methods, etc., can solve the problems of human and material resource consumption, inconvenient use, long design and production cycle, etc., to improve adaptability, avoid The effect of lifting operations, reducing working time and labor costs

Pending Publication Date: 2022-03-25
XUZHOU XUGONG FOUND CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the traditional design method, in order to pursue deeper drilling, the drill mast extension is designed to increase the height of the drill mast, and the drill mast extension is fixed on the original drill mast by hoisting. The design and production cycle is long, and the height of the drill mast limits the depth of the drilling hole, which is inconvenient to use

Method used

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  • Low rotary drilling rig with telescopic drilling mast
  • Low rotary drilling rig with telescopic drilling mast

Examples

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Embodiment Construction

[0019] The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0020] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, it is only used to explain the relationship between the components in a certain posture. If the specific posture changes, the directional indication will also change accordingly.

[0021] Such as figure 1 As shown, the drill mast retractable low-profile rotary drilling rig includes a retractable drill mast, a drill pipe drilling tool 2, a goose head 4, a luffing mechanism 9, a tilting cylinder 8 and a telescopic oil cylinder 7. The drill pipe drilling tool 2 is hung on the goose head 4 by a wire rope,

[0022] The telescopic drill mast includes an auxiliary drill mast 5 and a main drill mast 6, the upper end of the auxiliary drill mast...

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PUM

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Abstract

The low rotary drilling rig is characterized in that the low rotary drilling rig comprises a gooseneck boom (4), an auxiliary drilling mast (5), a main drilling mast (6), a telescopic oil cylinder (7) and a luffing mechanism (9), the upper end of the auxiliary drilling mast (5) is fixedly connected with the gooseneck boom (4), the interior of the main drilling mast (6) is of a cavity structure, and the lower end of the auxiliary drilling mast (5) is embedded in the interior of the main drilling mast (6); the main drilling mast (6) is hinged with a frame of the rotary drilling rig through a luffing mechanism (9), a piston end of the telescopic oil cylinder (7) is hinged with the auxiliary drilling mast (5), and a cylinder barrel of the telescopic oil cylinder (7) is fixed on the main drilling mast (6).

Description

technical field [0001] The invention relates to a low-profile rotary drilling rig with a retractable drill mast, which belongs to the technical field of low-profile rotary drilling rigs in low clearance construction environments. Background technique [0002] In the demand of cast-in-situ pile operation, rotary drilling rig is the most commonly used construction equipment. Due to the diversity of operating environments, the demand for low-clearance rotary drilling rigs is increasing. Many construction sites are near bridges and culverts, which have great restrictions on the working height of equipment. Conventional rotary drilling rigs cannot enter the construction site under low clearance requirements, so low-profile rotary drilling rigs that meet various height restrictions are required. [0003] In the traditional design method, in order to pursue deeper drilling, the drill mast extension is designed to increase the height of the drill mast, and the drill mast extension ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/02E21B15/00
CPCE21B7/023E21B15/00
Inventor 孙余石信忠何文思徐帅魏亚坤
Owner XUZHOU XUGONG FOUND CONSTR MACHINERY