Report of Investigations 8983: Conical Bit Rotation as a Function of Selected Cutting Parameters

Details

• Journal Article:
  U.S. Bureau of Mines
• Personal Author:
  Hanson, Bruce D. ; Myren, Theodore A. ; Roepke, Wallace W. ; Wingquist, Carl F.
• Description:
  The Bureau of Mines is engaged in research to evaluate the effects of cutter bit wear at coal mine faces. This paper addresses one element of conical bit wear, bit rotation. A discussion on mounting configuration and bit forces and their effects on rotation is presented. The effects on rotation and bit forces of bit attack angle, cutting depth, and skew are determined for two types of conical bits during linear cutting of sandstone-inclusive rock. The results indicate that a 10 deg. Negative skew angle and 35 deg. Attack angle produce the maximum rotation of 17.5 Deg. For each foot of cutting. Data on bit rotation and bit forces are presented in an appendix. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Safety
• Keywords:
  Mining-equipment; Mining-industry; Mine-workers; Cutting-tools; Tools; Equipment-design
• Source:
  USBM 1985 Jan; :1-18
• Series:
  NIOSH Numbered Publications   ; Mining Publications  
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  Minnesota ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  TCRC - Twin Cities Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  23 pdf pages
• NIOSHTIC Number:
  nn:10004765
• NTIS Accession Number:
  PB86-155975
• Federal Fiscal Year:
  1985
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:f1a8c2d1b76f1e37a874f3eaf47bc9a0041f39b2d9e0928b6b64ef801f3ec4b5cd222772dad512157d494d82f3436b0d5b1725e0c096cbea58d21bd8b7f16965
• Download URL:
  https://stacks.cdc.gov/view/cdc/10378/cdc_10378_DS1.pdf
• File Type:
  [PDF - 7.90 MB ]