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Non-drill rod boring tool

A technology without drill pipes and drilling tools, which is applied to drilling equipment, earthwork drilling, and driving devices for drilling in boreholes. and other issues, to achieve the effects of reducing power consumption, enhancing engineering adaptability, and improving rock breaking ability

Inactive Publication Date: 2010-12-15
DALIAN CRANE & MINING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the maximum drilling depth is a key parameter in the design of the drilling machine, the change of the maximum drilling depth will directly lead to the change of the structure of the drilling machine, and will also affect the stability and mobility of the whole machine. heavily restricted

Method used

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Experimental program
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Embodiment Construction

[0010] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0011] Depend on Figure 1-Figure 3 It can be seen that the present invention includes a drill bit 1, which is connected to the drill bit 1 and the telescopic pressurization mechanism 2 used to provide power, drilling pressure and drilling stroke for the drill bit 1, and the telescopic pressurization mechanism 2 is used to support the entire drill bit. The tool is fixedly connected with the supporting device 3 for counteracting the counter torque. The drill bit 1 is a rotary bucket, a short screw, a grab bucket or an impactor. The structure of the telescopic pressurizing mechanism 2 is that an inner sliding sleeve 13 is placed inside the cylindrical outer sliding sleeve 12, and a motor 9, an inner pressurizing oil cylinder 10 and a submersible motor 11 are fixed inside it, and the upper end of the outer sliding sleeve 12 is Connect the outer ...

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Abstract

The invention discloses a drilling tool without a drilling rod, which comprises a drill bit which is connected with an elastic pressurization mechanism which is used for providing driving force, drilling pressure and drilling process for the drill bit; the elastic pressurization mechanism is fixedly connected with a supporting device which is used for supporting the whole drilling tool and offsetting countertorque; since the invention changes the structure of current drilling tools thoroughly and adopts the specially-designed elastic pressurization mechanism and the supporting device; in a drilling machine without a drilling rod, a section of structure similar to the drilling rod of a traditional drilling machine is arranged between the drilling tool without the drilling rod and the supporting device thereof; a motivation driving device of the drilling tool without the drilling rod is integrated with the drill bit as one; when the drilling depth is changed, the length of the 'drillingrod' is not changed significantly; the structure not only can reduce the deformation of the drilling rod and ensure the quality of the drilling holes, but also can decrease the power consumption of the drilling tools and improve the rock-breaking capacity of the drill bit. The maximum drilling depth is no longer an important parameter for the design, and the adaptability of the drilling machine to a project is enhanced.

Description

technical field [0001] The invention relates to a drilling tool, in particular to a drilling tool without a drill rod on a drilling machine used for foundation construction and old foundation reconstruction. Background technique [0002] At present, the drilling tool of the traditional drilling machine is suspended on the column through the wire rope, and the power head drives the drill pipe, and then drives the drilling tool to excavate the rock and soil. The reaction force of the rock and soil on the drilling tool is transmitted to the The mechanical body (that is, the chassis) is offset by the friction between the chassis and the ground. The driving torque and maximum drilling depth of the drilling tool is a key parameter in the design of the drilling machine. Since the maximum drilling depth is a key parameter in the design of the drilling machine, the change of the maximum drilling depth will directly lead to the change of the structure of the drilling machine, and wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B4/04
Inventor 胡长胜赵伟民胡长军
Owner DALIAN CRANE & MINING MACHINERY
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