Hydraulic tamping – a new era in track maintenance

Since the advent of the first tamping machine in the 1930’s, the tamping industry has focused its efforts refining this conventional tamping drive. With a conventional tamping drive the vibrations are generated mechanically by an eccentric shaft and flywheel mounted with multiple roller bearing assemblies. The latest fully hydraulic tamping drive however generates vibrations with a special hydraulic cylinder assembly which contains no rotating parts. In addition to the differing mechanical configurations of the conventional and hydraulic tamping drives, there are a number of new functions associated with the new hydraulic tamping drive. The noise emissions are significantly less, there are no vibrations when the work-head is in its raised position, increased opening widths and the frequency, amplitude of the vibrations are variable. In addition to these suggested benefits, hydraulic tamping drives can also measure the ballast consolidation, hardness and quality of the ballast, meaning not only is optimum consolidation achieved but this can be confirmed on a simple shift report, recording that the required consolidation has been achieved and providing details on the quality of the ballast. This paper will discuss the history of the development of the conventional and hydraulic tamping drives as well as the unique features of the hydraulic tamping drive.

Media Info

  • Pagination: 9p. ; PDF
  • Monograph Title: AusRAIL PLUS 2016, Rail - moving the economy forward, 21-23 November 2016, Adelaide, South Australia, Australia

Subject/Index Terms

Filing Info

  • Accession Number: 01636965
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: May 30 2017 3:33PM