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Manual gripper for tunnel drilling rig with double-layer centralizer and gripping method

A technology for tunnel drilling rigs and grippers, which is applied in the direction of drill pipes, drill pipes, drilling equipment, etc., can solve the problems of low drilling precision and high construction risk, achieve high drilling precision, avoid accidents caused by pad forks, The effect of simple structure

Active Publication Date: 2018-07-20
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly solves the technical problems of low drilling precision and high construction risk existing in the prior art, and provides a manual clamper and clamping method for tunnel drilling rigs with double-layer centralizing devices

Method used

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  • Manual gripper for tunnel drilling rig with double-layer centralizer and gripping method
  • Manual gripper for tunnel drilling rig with double-layer centralizer and gripping method
  • Manual gripper for tunnel drilling rig with double-layer centralizer and gripping method

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Embodiment

[0026] like Figure 1-Figure 3 As shown, the present invention includes a connecting seat 2, a lifting mechanism 3, a sliding guide mechanism 1, a lifting cylinder 6 and a pad fork 7. Wherein the connecting seat 2, the lifting mechanism 3 and the sliding guiding mechanism 1 are fixed by bolts, and the two sliding guiding mechanisms 1 are symmetrically arranged left and right. A double-layer centralizing device composed of a base 4 and a centralizing ring 5 is arranged on the connecting seat 2 and the lifting mechanism 3 . The two ends of the lifting oil cylinder 6 are fixed on the lifting mechanism 3 and the connecting seat 2.

[0027] like Figure 4-Figure 5 Shown, connecting base 2 is made up of connecting plate 8, rib plate 9, base plate 10, column 11, riser 12, and pierce ground spearhead 13 welding. Connecting plate 8 is fixed with drilling rig main body, and waist-shaped groove 14 is arranged on column 11, and lifting mechanism 3 can slide up and down by lifting oil c...

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PUM

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Abstract

The invention relates to a clamper and a clamping method, belonging to the technical field of underground drilling in coal mines, in particular to a manual clamper and a clamping method for a tunnel drilling machine with double-layer centralizing devices. It includes: a connection seat with a bottom plate, characterized in that it also includes a lifting mechanism arranged parallel to the bottom plate, and columns and sliding guide mechanisms are respectively arranged on opposite sides of the bottom plate; The above-mentioned sliding guide mechanism is matched; the relative position of the bottom plate and the connecting seat is provided with a centralizing device, and the centralizing device is located between the column and the sliding guiding mechanism. The clamper and the method have the advantages of simple structure, flexible operation, high safety factor and strong adaptability.

Description

technical field [0001] The invention relates to a clamper and a clamping method, belonging to the technical field of underground drilling in coal mines, in particular to a manual clamper and a clamping method for a tunnel drilling machine with double-layer centralizing devices. Background technique [0002] Gripper is widely used in tunnel drilling rigs. Its main function is to clamp the drilling tool in the hole to prevent the drilling tool from sliding, and it can also cooperate with the power head to unscrew and unscrew the drill pipe. The structure of the clamping device is various. According to the different power sources that provide the clamping force of the drill pipe inside, the clamp can be divided into hydraulic type, spring type and manual type. The drilling accuracy of the conventional manual clamper is low, and usually the worker directly holds the drill pipe with the pad fork, and unscrews the drill pipe through the reverse rotation of the power head. High de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/10
CPCE21B19/10
Inventor 阚志涛李旺年张幼振邵俊杰赵江鹏李旭涛张宁王贺剑李栋邢望
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP