ICGCM Papers:
Equipment Design and New Technologies
 
 
Development of a Six Drilhead Roof Bolting Machine
35th International Conference on Ground Control in Mining
Development of a Six Drilhead Roof Bolting Machine
by
Bill A Kyslinger, J.H. Fletcher & Co., Huntington, United States
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[Conference] 35th International Conference on Ground Control in Mining
[Price] Free  [Comments] 0
[Topical Area] Equipment Design and New Technologies
[Author] Bill A Kyslinger, J.H. Fletcher & Co., Huntington, United States
[Abstract] 
Key Conclusions:
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The six-head roof bolter allows fewer operators to drill and install roof and rib bolts, which in turn lowers the miners’ exposure per cut. The six-head roof bolter productivity has been measured to be very similar to the dual boom machine very early in its application causing anticipation of improvement over the dual boom machines.
Key Findings:
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The machine has been installed at the mine and has begun working in production. The machine has shown great promise with some early successes. The feed and rotation controls at each operator’s station include a latch control for drilling. The latch control will allow the operator to lock in the feed and rotation once the hole has been collared, allowing the operator to move on to the next hole and start it. Some additional guarding has been required by MSHA due to the unattended operator latched drill feed and rotation control. Some ergonomic issues have arisen because of the guarding but ongoing changes are being worked out as this paper is being written.
Objective of the Paper:
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To publish the results of the machine design, discuss obstacles in the design, and to publish the early results of the machine working underground.
Problem Statement:
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Design, build, and supply to a mine in Illinois an MSHA approved six head platform bolter that can simultaneously install four roof bolts and two rib bolts with 2-3 operators that is more efficient without a loss of safety as compared to the existing dual boom roof bolter fleet.