Back to results
US 5,101,358 AGranted
Method of programming and performing the reprofiling work of rails of a railroad track and a device to carry out the same
AssigneeSpeno International S.A.
InventorRomolo Panetti
Life of this patent
Estimating the term…
Abstract
A method for programming the work of reprofiling the rails of a railroad track, and/or for reprofiling the rails, and an apparatus to carry out this method is disclosed. The method is simple, precise, entirely automatic, and rapid and thus avoids interference with normal rail traffic. The method comprises dividing the track into a certain number of portions, and carrying out several steps on each portion. The method which permits the simultaneous use of diverse advanced techniques for measuring the profile, may be carried out immediately or be differed to a later time.
Claims11
A method of programming the reprofiling work of the rails of a railroad track, according to which the track is divided in a certain number of portions which comprises:
- carrying out the following operations for each of said portions:
- a. selecting among several reference profiles a preferred reference profile;
- b. determining a certain number of characteristical types of wearing off of the rail to be reprofiled among given different possible types of wearing off;
- c. selecting a type of reprofiling machine having to be used for the reprofiling among the types of machine at disposition, as well as the speed of working;
- d. defining standard tool configurations as well in position as in power;
- e. selecting as a function of the type of reprofiling machine to be used, the standard tool configurations which can be realized with said machine;
- f. measuring the wavelength and the amplitude of longitudinal undulations on the track portion envisaged;
- g. measuring a transverse profile of the head of the rail on the envisaged track portion;
- h. comparing the measured rail profile with the preferred reference profile and determining the excess of metal to be removed;
- i. comparing the measured transverse profile of the rail to the different possible types of wearing off and determining by this comparison a reprofiling category to be used which is representative for the considered portion;
- j. determining as a function of the representative reprofiling category the standard particular tool configuration to be used among the ones selected for the machine to be used;
- k. determining as a function of the particular tool configuration to be used, of the reprofiling category to be used, of the excess metal to be removed and of the longitudinal undulations amplitude, the total number of passes to be made;
- and
- l. entering data collected from the preceding steps into the selected reprofiling machine so as to have a thus programed machine.
11 more elements
A machine for performing the programming of reprofiling work of the rails of a railroad track comprising:
- selection means of a preferred reference profile among several reference profiles which are memorized;
- means to determine among all the memorized and detected types of wearing off a certain number of characteristical types of wearing off of the worn rail to be reprofiled;
- means to define the speed of work;
- means to memorize all possible standard configurations of tools for this machine;
- means to measure the amplitude of the longitudinal undulations of the rails;
- means to measure a transverse profile of the head of the rail;
- comparison means of the worn rail profile with the preferred reference profile to determine the excess metal to be removed;
- comparison means of the measured transverse profile to the different characteristical types of wearing off of the rail to be reprofiled to determine a reprofiling category to be used;
- means determining as a function of the reprofiling category to be used, the particular standard tool configuration to be used;
- means determining as a function of the tool configuration to be used, of the reprofiling category to be used, of the excess of metal to be removed and of the amplitude of the longitudinal undulations, the total number of passes to be made.
7 more elements
A method of performing the reprofiling work of the rails of a railroad track, according to which the track is divided in a certain number of portions which comprises:
- carrying out the following operations for each of said portions:
- a. selecting among several reference profiles a preferred reference profile;
- b. determining a certain number of characteristical types of wearing off of the rail to be reprofiled among given different possible types of wearing off;
- c. selecting a type of reprofiling machine having to be used for the reprofiling among the types of machine at disposition, as well as the speed of working;
- d. defining standard tool configurations as well in position as in power;
- e. selecting as a function of the type of reprofiling machine to be used, the standard tool configurations which can be realized with said machine;
- f. measuring the wavelength and the amplitude of longitudinal undulations on the track portion envisaged;
- g. measuring a transverse profile of the head of the rail on the envisaged track portion;
- h. comparing the measured rail profile with the preferred reference profile and determining the excess of metal to be removed;
- i. comparing the measured transverse profile of the rail to the different possible types of wearing off and determining by this comparison a reprofiling category to be used which is representative for the considered portion;
- j. determining as a function of the representative reprofiling category the standard particular tool configuration to be used among the ones selected for the machine to be used;
- k. determining as a function of the particular tool configuration to be used, of the reprofiling category to be used, of the excess metal to be removed and of the longitudinal undulations amplitude, the total number of passes to be made;
- l. entering data collected from the preceding steps into the selected reprofiling machine so as to have a thus programed machine.
- m. performing the reprofiling work of the rails using the programmed machine.
11 more elements
Dependencies are inferred from the claim text.