A special universal three-claw top drill for top tightening of drilling rig, boom, rock drill

A technology for rock drills and drilling rigs, which is applied in the field of universal three-claw top drilling for drilling rigs, booms, and rock drills. It can solve the problems of uneven drilling sections, low efficiency, and inability to position, so as to eliminate eccentric force and improve rigidity. , the effect of increasing strength

Inactive Publication Date: 2017-03-29
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the rock drill jacking devices of drilling rigs in the domestic and foreign markets are single-claw top drills. Due to the large size of the body, uneven drilling cross-section, insufficient rigidity of the mechanical arm, and large force on the top drill, the drill arm of the drilling rig Rock drills generally have the problems of difficult or even impossible positioning of the drill pipe, inconvenient operation, and low efficiency, which greatly restricts the production efficiency of rock roadway drilling operations

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  • A special universal three-claw top drill for top tightening of drilling rig, boom, rock drill
  • A special universal three-claw top drill for top tightening of drilling rig, boom, rock drill
  • A special universal three-claw top drill for top tightening of drilling rig, boom, rock drill

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Embodiment Construction

[0019] The specific embodiment of the present invention will be described with reference to the accompanying drawings.

[0020] A special universal three-claw top drill for top-tightening drilling rig boom rock drill, consisting of a base 1, a fixer 2, and a positioner 3, wherein the base 1 is installed on the mechanical arm at the end of the drilling rig boom rock drill, and its center The position is hollow, which can be extended by the drill bit of the rock drill, and a semicircular locator 3 is buckled on the base 1, and the locator 3 is fixed on the base 1 by the fixer 2. The drill bit of the drilling rig passes through the center of the ball of the universal three-claw top drill, so that the tolerance of the three-claw top drill to the drill bit is realized.

[0021] The base 1 is composed of a fixed seat 1-1, a support hemisphere 1-2, a base threaded hole 1-3, and a base drilling hole 1-4. Among them, the fixed seat 1-1 is mainly used to realize the connection between ...

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Abstract

A universal three-jaw push borer special for holding a boom / jumbo rock drill comprises a base (1), a fixing device (2) and a positioning device (3). The base (1) is mounted on a mechanical arm at the tail end of the boom / jumbo rock drill, and the middle of the base (1) is hollow and allows passage of a bit of the drill. The positioning device (3) which is semicircular is placed upside down on the base (1). The positioning device (1) is fixed to the base (1) through the fixing device (2). The problems that a current boom / jumbo rock drill has difficulty in drilling due to insufficient holding force, is inconvenient to operate and low in positioning precision are effectively solved; the three-jaw push borer is used, the base is a solid half ball, and thus overall strength is improved and the borer can bear large holding force; three jaws enclose the bit, eccentric force generated during operation of the drill is effectively eliminated, and overall rigidity of the mechanical arm is improved.

Description

technical field [0001] The invention relates to a mechanical mechanism, in particular to a special universal three-claw top drill for jacking up a drilling rig, a drill arm, and a rock drill. Background technique [0002] According to the "Twelfth Five-Year Plan" for the development of the coal industry, by 2015, the degree of mechanization of large-scale coal mining in my country will reach more than 95%, and the degree of automation of medium-sized coal mines will also be greatly improved. In the construction of unified coal mines and new wells in my country, there are a large number of rock roadway development and excavation work every year, and the degree of automation of excavation equipment has become the main factor restricting the improvement of production capacity of coal mines. [0003] At present, most of the rock drill jacking devices of drilling rigs in the domestic and foreign markets are single-claw top drills. Due to the large size of the body, uneven drillin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B1/00
Inventor 秦乐乐张付祥蔡立强
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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