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Mine bolter

a bolting machine and bolting technology, applied in the field of mine bolting machines, can solve the problems of difficult movement and relocation of machinery, unprotected operators of machinery,

Inactive Publication Date: 2014-01-30
RAMBOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a machine that can drill a hole in a rock layer and insert a bolt to reinforce it. The machine has a frame with spaced support positions and a device that can hold a drill bit and insert a bolt. The device can pivot about a horizontal axis to move through an angle of at least 90 degrees. A motor causes the device to move. The machine remains stable even when the device moves through a wide angle. The frame has wheels to move it smoothly and can receive a weight to change its center of gravity. The weight can be a container and water. The technical effects of the invention include improved stability and control when drilling holes in rocks.

Problems solved by technology

A disadvantage of the above described method of drilling and inserting the bolts is that frequently the operator of the machinery is not protected, and the machinery is difficult to move and relocate.

Method used

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  • Mine bolter
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Examples

Experimental program
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Embodiment Construction

[0024]In the accompanying drawings there is schematically depicted a mine tunnel 10 that is formed by a shearer (not illustrated). The shearer would travel in a direction normal to the plane of the drawing of FIG. 1.

[0025]The tunnel 10 has a floor 11 and a roof 12, with a chock 13 aiding in supporting the roof 12. The chock 13 includes a base 14 that rests on the floor 11 and a roof support 15 that engages the roof 12 to aid in supporting the roof 12 until bolts are inserted and mesh installed if required. Extending between the base 14 and roof support 15 is a hydraulic ram 16 that is extended in the direction 17 to support the roof 12 on the floor 11.

[0026]Also supported on the floor 11 is a conveyor assembly 18 that includes a pair of longitudinally extending rails 19 between which there extends a tray 20. A chain conveyor moves across the tray 20 to convey coal deposited thereon by the shearer.

[0027]Fixed to one of the rails 19 is a shield 21 that inhibits coal moving transversel...

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PUM

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Abstract

A machine (23) that is operable to drill passages in a surrounding rock layer and insert bolts therein. The machine (23) is operated by an operator (24) that stands on a platform (25) that is preferably secured to a rail upon which the machine (23) moves.

Description

TECHNICAL FIELD[0001]The present invention relates to machines that form passages in a rock layer and insert a bolt therein, and more particularly but not exclusively to machines that form passages in a rock layer surrounding a mine tunnel and inserting a bolt therein.BACKGROUND OF THE INVENTION[0002]In a mining operation a shearer is moved along a mine face, such as a coal face. A tunnel is formed in the direction of movement of the shearer. As the tunnel is formed, passages are drilled in the mined roof and bolts inserted. Frequently the bolts also secure in position mesh that lines the roof.[0003]Extending longitudinally of the tunnel is a conveyor that removes the mined material.[0004]Adjacent the conveyor the passages are drilled and bolts inserted. Hydraulically operated “chocks” aid in retaining the rock structure of the roof in position until the bolts are inserted. The chocks include a ground engaging base and a roof support, with a hydraulic ram extending between the base ...

Claims

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Application Information

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IPC IPC(8): E21D20/00E21D23/00
CPCE21D23/0052E21D20/003
Inventor MASTALIR, PETER
Owner RAMBOR