Rod changer for a rock drill

Inactive Publication Date: 2010-12-09
BUCYRUS MINING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]The present invention solves one or more problems of the prior art by providing, in at least one embodiment, a rod exchanger for a rock drill system. The rod exchanger of this embodiment includes a rotatable carousal adapted to hold a plurality of drill rods. A carousal driver is in communication with the rotatable carousal. The carousal driver includes a driver gear and a driven gear. Both the gear and the driven gear are coated with a self-lubricating/anti-corrosive layer comprising a metal-containing composition and a fluorine-containing resin. The rod exchanger also includes a rod gripper for positioning a drill rod under a rock drill.
[0009]In another embodiment, a rod exchanger for a rock drill system is provided. The rock drill system includes a rotatable carousal adapted for holding a plurality of drill rods. A carousal driver is in communication with the rotatable carousal. The carousal driver includes a driver gear and a driven gear. The rock drill system also includes a rod gripper for positioning a drill rod under a rock drill. The rod gripper includes one or more pivot

Problems solved by technology

Experience has shown that these pivot and locking mechanisms are not properly maintained resulting in equipment lock up and failure.

Method used

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  • Rod changer for a rock drill
  • Rod changer for a rock drill
  • Rod changer for a rock drill

Examples

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Embodiment Construction

[0025]Reference will now be made in detail to presently preferred compositions, embodiments and methods of the present invention, which constitute the best modes of practicing the invention presently known to the inventors. The Figures are not necessarily to scale. However, it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for any aspect of the invention and / or as a representative basis for teaching one skilled in the art to variously employ the present invention.

[0026]Except in the examples, or where otherwise expressly indicated, all numerical quantities in this description indicating amounts of material or conditions of reaction and / or use are to be understood as modified by the word “about” in describing the broadest scope of the invention. Practice within the nume...

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Abstract

A rock drill system includes a rotatable carousal adapted to hold a plurality of drill rods. A carousal driver is in communication with the rotatable carousal. The carousal driver includes a driver gear and a driven gear. Both the driver gear and the driven gear are coated with a self-lubricating / anti-corrosive layer comprising a metal-containing composition and a fluorine-containing resin. The rock drill system also includes a rod gripper for positioning a drill rod under a rock drill. Another rock drill system of similar design is provided in which the rod gripper includes one or more pivot pins that are coated with a self-lubricating / anti-corrosive layer comprising a metal-containing composition and a fluorine-containing resin.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. provisional Application No. 61 / 183,870, filed Jun. 3, 2009, the disclosure of which is incorporated in its entirety by reference herein.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]In at least one aspect, the present invention is related to an improved rod changer for a drill.[0004]2. Background Art[0005]Construction and mining drills are used to drill deep holes in hard materials such as rock. Such drills use a plurality of rods to extend the deep to which drilling is to proceed. Rods are sequentially loaded to extend the drilling depth when necessary. A rod changer is typically used to handle adding or taking rods or pipes out of the drill string.[0006]A rod changer serves three functions in a drilling operation. The first function is to add more rods or pipes in line with the drill string. The second function is to remove rods or pipes from the drill string. The third funct...

Claims

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Application Information

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IPC IPC(8): E21B19/14
CPCE21B19/146E21B7/025
InventorCONNELL, STUART A.
OwnerBUCYRUS MINING EQUIP