Device and process for measuring ovalization, buckling, planes and rolling parameters of railway wheels
First Claim
1. A device for measuring ovalization, buckling, planes and rolling parameters of railway wheels using artificial viewing, characterised in that it comprises on each side of the railway track a measuring area (L);
- a rolling rail (2) along which the wheel (1) to be measured is made to pass at a speed of about 10 km/h;
a counterrail (3) to centre said wheel (1) during the measuring process;
a collimated laser beam coming from a laser system (6), illuminating the flange and the rolling profile whilst the wheel (1) crosses the measuring area;
a screen (4) on which the contour shadow is projected;
a video camera (5) to capture and transmit the images projected on the screen;
an artificial viewing system (9) connected to the video camera which digitalises and processes the received images, obtaining the parameters to be measured relative to ovalization, buckling, planes and rolling parameters;
a computer (10) connected to the artificial viewing system, showing the obtained values and storing the captured images;
optical wheel position sensors (7) detecting the wheel presence and enabling and disabling image capture; and
a control system (8) governing the sensors (7).
2 Assignments
0 Petitions
Accused Products
Abstract
Device and process for measuring ovalization, buckling, planes and rolling parameters of railway wheels by use of a rolling rail (2) along which the outermost part of the wheel (1) to be measured is made to pass at approximately 10 km/h. Various sensors (7) detect the presence of the wheel in the measuring area, such that they activate the device. A collimated laser beam system (6) projects a solid light beam on the wheel, constantly interfering therewith producing images which are reflected on a screen (4). These images are recorded by a camera (5) and sent to an artificial viewing system (9) where the necessary parameters are calculated, on the basis of which the required measurements are obtained. The results obtained are sent to a computer (10) where the measurement reports are generated.
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Citations
10 Claims
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1. A device for measuring ovalization, buckling, planes and rolling parameters of railway wheels using artificial viewing, characterised in that it comprises on each side of the railway track a measuring area (L);
- a rolling rail (2) along which the wheel (1) to be measured is made to pass at a speed of about 10 km/h;
a counterrail (3) to centre said wheel (1) during the measuring process;
a collimated laser beam coming from a laser system (6), illuminating the flange and the rolling profile whilst the wheel (1) crosses the measuring area;
a screen (4) on which the contour shadow is projected;
a video camera (5) to capture and transmit the images projected on the screen;
an artificial viewing system (9) connected to the video camera which digitalises and processes the received images, obtaining the parameters to be measured relative to ovalization, buckling, planes and rolling parameters;
a computer (10) connected to the artificial viewing system, showing the obtained values and storing the captured images;
optical wheel position sensors (7) detecting the wheel presence and enabling and disabling image capture; and
a control system (8) governing the sensors (7). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- a rolling rail (2) along which the wheel (1) to be measured is made to pass at a speed of about 10 km/h;
Specification