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Drilling machine clamp holder

A gripper, drilling rig technology, applied in drill pipe, drill pipe, drilling equipment and other directions, can solve problems such as danger, and achieve the effect of ensuring service life, reducing wear and improving operation reliability

Inactive Publication Date: 2014-01-22
ZHENJIANG ANDA COAL MINE SPECIAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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  • Drilling machine clamp holder

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Embodiment Construction

[0008] As shown in the figure, the drill holder includes a holder body 1, in which slips 2 are installed, and the end face of the holder body is closed by a flange 3, which is provided with a hole for drilling tools to pass through. A through hole 4; the edge of the through hole is also provided with a number of internal and external hollow grooves 5 through. There are two empty grooves 5, which are arranged symmetrically in a direction perpendicular to the opening and closing direction of the slips.

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Abstract

The invention relates to a coal mine drilling device, in particular to a drilling machine clamp holder used in drilling machine equipment. The drilling machine clamp holder comprises a clamp holder body, wherein slips are installed inside the clamp holder body, the end face of the clamp holder body is closed through a square flange, a through hole through which a drilling tool passes is formed in the square flange, a plurality of empty slots are formed in the edge of the through hole, and the interior and the exterior of each empty slot are communicated. As the empty slots are formed in the square flange, whether the slips are in an opened state or a closed state can be observed conveniently in the drilling process, then the abrasion to the slips can be reduced when the slips are used, and not only are the slips and a drilling rod protected, but also the service life of a drilling machine is prolonged. In addition, when the drilling machine is used for drilling in an elevation angle mode, leaked crushed stones and silt can flow out through the empty slots in the square flange, so that the situation that the slips cannot be opened or cannot be closed completely is avoided, and operation reliability is improved.

Description

technical field [0001] The invention relates to coal mine drilling equipment, in particular to a drilling rig holder used in the drilling rig equipment. Background technique [0002] As an important part of the drilling rig, the gripper is mainly used to coordinate the forward and reverse movements with the motor of the drilling rig when automatically loading and unloading the drill pipes, so as to realize the docking and disengagement of the drill pipes, the disassembly of the drill bit, etc., and to clamp the drill in the hole when necessary. Therefore, its performance will directly affect the performance of the drilling rig, drilling efficiency and drilling quality. At present, the forms of integrated devices for drilling rig holders at home and abroad include: closed hole type without opening; open type, etc. Due to the harsh environment under the mine, there are often some problems with existing forms of grippers. For the clamper with no hole type, during use, because...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/18E21B19/10
Inventor 周英俊黄晶王潇邹作佳
Owner ZHENJIANG ANDA COAL MINE SPECIAL EQUIP