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Grapple attachment for use with drill pipes

A hook device and drill pipe technology, which is applied in the direction of drill pipe, drill pipe, earthwork drilling, etc., and can solve problems such as danger and trouble

Active Publication Date: 2011-02-09
LAVALLEY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is a cumbersome and dangerous operation because it requires three or more workers (e.g. one worker operates the excavator and at least two workers are present)

Method used

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  • Grapple attachment for use with drill pipes
  • Grapple attachment for use with drill pipes
  • Grapple attachment for use with drill pipes

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Experimental program
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Embodiment Construction

[0013] For the terms defined below, these definitions shall apply unless a different definition is given in the claims or elsewhere in the specification.

[0014] All numerical values ​​herein, whether expressly stated or not, are deemed to be modified by the term "about". The term "about" generally refers to a range of values ​​that one of skill in the art would consider equivalent to the recited value (ie, having the same function or result). In many instances, the term "about" may be meant to include numbers that are rounded to the nearest significant figure.

[0015] The recitation of numerical ranges by endpoints includes all numbers within that range (eg, 1-5 includes 1, 1.5, 2, 2.75, 3, 3.80, 4, and 5).

[0016] Although the present disclosure discloses certain suitable dimensional ranges and / or values ​​for various components, features and / or specifications, those skilled in the art will appreciate from this disclosure that ideal dimensions, ranges and / or values ​​may...

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PUM

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Abstract

A grapple attachment (10) for use with a drill pipe having a diameter, that may include first and second gripping members (30) disposed on a rigid lateral member (16) tiltable up to 40 degrees from the horizontal and preferably continuously rotatable, wherein each of the first and second gripping members has a first and second claw (36) and a bracket (32) having a concave contact surface (40), each claw having a concave gripping surface (42), wherein the surface of the bracket and the gripping surfaces of the first and second claws come in contact with the drill pipe when the gripping member is in the closed position.

Description

technical field [0001] The present invention relates to a grapple for gripping and manipulating drill rods for directional drilling equipment which can be attached to trackhoes, backhoes, digging machine or other components of heavy construction equipment. Background technique [0002] Utility lines for gas, water, electricity and data are often buried underground. An increasingly common method of installing these pipelines is to drill the holes using horizontal directional drilling techniques. The technology enables holes to pass under existing structures (such as roads or sewers) and existing geographic features (such as rivers) without obstructing them. [0003] Typical horizontal directional drilling equipment includes a frame on which is mounted a drive mechanism that can slide along the frame and that is adapted to rotate the drill string. Sliding the drive mechanism while rotating the drill string enables the drill string to be lowered into the ground to form the h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/15E21B19/14
CPCE21B19/20E21B19/14E21B19/155Y10T403/32008
Inventor R·勒瓦利J·勒瓦利
Owner LAVALLEY IND