DETERMINATION OF THE PARAMETERS OF SAFETY DEVICES PERMITTING THE PANTOGRAPH STRIP TO DEVIATE RESILIENTLY DURING INCURSION ONTO AN OBSTRUCTION

OPREDELENIE PARAMETROV PREDOKHRANITEL'NYKH USTROISTV, POZVOLIAIUSHCHIKH POLOZU TOKOPRIEMNIKA UPRUGO OTKLONIAT'SIA PRI NAEZDE NA PREPIATSTVIE (TRUDY O.M.I.I.T.A. 137)

The aim of ensuring reliable current collection, the prevention of possible damage of the current collector and the catenary network, led to the appearance of a series of protective devices built into various assemblies of the current collectors in such a manner that upon encountering an obstacle arising on the catenary network, the blow would be mollified and the runner, deflected downward, would elude the dangerous object. The requirements for recovering devices can be formulated as follows: (1) the mass of the parts of the current collector which are deflected upon interaction with impediment must be minimal; (2) the size of the recovering horizontal force must be independent of the height of the rise of the current collector and the height of the dip of the carriage; (3) The horizontal deflection of the runner must not exceed the allowable significance (following which it becomes impossible to re- turn the runner to an original position due to the appear- ance of a significant moment from the static depression of the current collector); (4) At the time of the blow it is desirable to have motion of the runner not only backward, but also downward (without lowering the frame of the current collector). The study concludes that (1) in order to calculate the parameters of the preventive devices which allow the runner to firmly deflect upon encountering an impediment, it is possible to utilize the methods proposed in the article and (2), the analysis carried out for lower deflecting devices in the upper junctions and the deflections of the beam frames of the current collectors attests to the significant influence of the angle of deflection (or the height) of the runner upon the reversal of the moment and the force.

  • Supplemental Notes:
    • Abstract only is available in English, original untranslated as of November 1976.
  • Corporate Authors:

    Omsk Scientific Research Institute (Om.I.I.Ta.)

    Omsk,   USSR 
  • Authors:
    • Mikheev, V P
  • Publication Date: 0

Language

  • Russian

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00130295
  • Record Type: Publication
  • Source Agency: Federal Railroad Administration
  • Report/Paper Numbers: No. 137 Proceeding
  • Files: TRIS, USDOT
  • Created Date: Nov 23 1977 12:00AM