A drill pipe with adjustable bore diameter

A technology of adjusting and caliber, applied in drill bits, earth-moving drilling, drilling equipment, etc., it can solve the problem of complicated operation of adjusting the pore diameter, and achieve the effect of stable rolling of the bearing.

Active Publication Date: 2022-07-01
ZHEJIANG URUS TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of drilling in the way of "one hole, one device". Such a drilling method has the problem of complicated operation of adjusting the aperture, and proposes a drill pipe with adjustable drilling diameter.

Method used

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  • A drill pipe with adjustable bore diameter
  • A drill pipe with adjustable bore diameter
  • A drill pipe with adjustable bore diameter

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation are therefore not to be construed as limitations o...

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Abstract

The invention discloses a drill rod with adjustable drilling diameter, comprising a blade fixing device including a fixing disc, the blade fixing device comprising a plurality of limit pins, a plurality of compression springs and a plurality of baffles, a plurality of all The baffles are circumferentially arranged on the fixed plate, the limit pins are fixedly arranged on the inner sidewall of the baffles, and the compression springs are sleeved on the outer sidewalls of the limit pins, and a plurality of drill knives are arranged in the blade fixing device, A rotating body is coaxially arranged on the fixed plate, and a plurality of balls are arranged between the drill and the rotating body. In the present invention, the position of the spiral body on the rotating rod can be adjusted by adjusting the position of the ball, so that the position of the drill can be controlled, and finally the aperture size of the hole to be drilled can be changed to achieve the effect of rapid expansion; , The different pitches of the second helix and the third helix and the different positions of the spherical grooves can change the rolling position of the balls, and the steel balls can play the effect of stable rolling of the bearing.

Description

technical field [0001] The invention relates to the technical field of drill pipes, in particular to a drill pipe with adjustable borehole diameter. Background technique [0002] At present, a large number of drilling machines are needed in construction, but most of the existing drilling instruments use the "one hole and one device" method to drill holes. Such a drilling method has the complicated operation of adjusting the hole diameter. At the same time, it is impossible to adjust the operation during the rotation process. At the same time, the debris generated by the traditional reaming drilling will be taken out with the drilling process, and the generated debris cannot be collected. effect, it is easy to cause subsequent cleaning troubles. [0003] To this end, we designed a drill pipe with adjustable drilling diameter. SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to solve the problem of "one hole and one device" for drilling, such a dri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B10/32
CPCE21B10/32
Inventor 张浩
Owner ZHEJIANG URUS TOOLS
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