Rolling and lathing parameter measuring device by artificial viewing for railway vehicle wheels
First Claim
1. a precision measuring device for the rolling parameters of flange thickness and height, qR factor, wheel diameter, distance between internal sides, gradient on the rolling circle, warping, ovalisation, three dimensional shape and offset lathing parameters on both axles, for railway wheels, using artificial viewing, characterised in that it comprises two laser light sources (2, 2′
- ) illuminating a line along the profile and rolling band of the wheel (1) to be measured;
a video camera (4) which captures two simultaneous views of the illuminated zone (3) in each image captured in the camera;
a set of sensors (10) actuating image capture in the camera;
a periscope consisting of two mirrors (5), one of which may be a semi-mirrored sheet and providing the second view to obtain the complete profile; and
an artificial viewing system (6) which, connected to the video camera (4), records, digitalises, composes both profile views, analyses and calculates the measurement-parameters, as well as stores the obtained images;
1 Assignment
0 Petitions
Accused Products
Abstract
A measuring device for the rolling and lathing parameters of railway wheels (1) permitting the viewing of both sides of the flange and the rolling band by means of artificial viewing methods, using two laser light sources (2), each one of which projects a line of light along the profile to be measured. A camera (4) simultaneously captures both sides of the illuminated profile (3) with the aid of a two mirror periscope system (5). The periscope design permits simultaneous viewing of both the flange and the rolling band with a single camera. A set of wheel presence sensors (10) activates image capture by the camera. Each captured image is sent to an electronic artificial viewing equipment (6), where the two profile views containing the recorded image are composed resulting in a complete profile. The obtained results are displayed in the electronic equipment itself or in a computer (7).
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Citations
11 Claims
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1. a precision measuring device for the rolling parameters of flange thickness and height, qR factor, wheel diameter, distance between internal sides, gradient on the rolling circle, warping, ovalisation, three dimensional shape and offset lathing parameters on both axles, for railway wheels, using artificial viewing, characterised in that it comprises two laser light sources (2, 2′
- ) illuminating a line along the profile and rolling band of the wheel (1) to be measured;
a video camera (4) which captures two simultaneous views of the illuminated zone (3) in each image captured in the camera;
a set of sensors (10) actuating image capture in the camera;
a periscope consisting of two mirrors (5), one of which may be a semi-mirrored sheet and providing the second view to obtain the complete profile; and
an artificial viewing system (6) which, connected to the video camera (4), records, digitalises, composes both profile views, analyses and calculates the measurement-parameters, as well as stores the obtained images;
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- ) illuminating a line along the profile and rolling band of the wheel (1) to be measured;
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10. A device according to previous claims, characterised in that the artificial viewing system (6) is linked with a computer (7) and/or with the numeric control of the pit lathe with which it performs data exchange.
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11. A device according to previous claims, characterised by the use of a greater number of cameras, lasers and/or periscopes.
Specification