SU1279896A1 - Method of checking distribution of static pressure from wheels of railway rolling stock and device for effecting same - Google Patents

Abstract

1. A method of controlling the distribution of static pressure from the wheels of a railway rolling stock, including sequential measurement of the rail gfo-bender under each wheel of the moving rolling stock unit, according to which pressure distribution between the wheels is measured, in order to reduce the measurement error , the wheelsets are centered relative to the axle of the track, and the pressure of the wheels on the rails is determined by the uniform movement of a rolling stock unit back and forth, 2, According to claim 1, containing a freely bending section of the running rail, the ends of which are rigidly connected with an additional longitudinal beam, strain gauges are installed under the running rail on its vertical axis of symmetry, characterized in that, p. In order to reduce the measurement error, additional beams are placed under the rail section, and centering plates are installed in front of this section and after it on the inner side of the rail heads. 3. The device according to claim 2, of which is that the running rails are installed with an inclination inside the track. - Oh @ (lu 00 00 od

Description

112 The invention relates to transport and can be used to control the distribution of static pressure from the wheels of a rail vehicle. The purpose of the invention is to reduce the measurement error. Figure 1 shows the device, a general view; figure 2 - section aa in figure 1; on fig.Z - section bb on fig.Z; figure 4 - rail, a transverse section along the axis of the strain gauge. The method of controlling the distribution of static pressure from the wheels of a rolling stock involves sequentially measuring the deflection of a rail under each wheel of a moving unit of rolling stock, which is used to judge the distribution of pressure between the wheels. In this case, the wheel pairs are centered relative to the track axis, and the wheel pressure on the rails is determined with the uniform movement of the rolling stock unit back and forth. The device contains a free-bending section of the drive rail, the ends of which are rigidly connected to the additional longitudinal beam. In addition, strain gauges are installed under the running rail on its vertical axis of symmetry. Additional beams are placed under the running rail section, and centering plates are installed in front of the said section and after it on the inner side of the rail heads. Running rails are installed with a slope inward track. The device contains a free-running section of the running rail 1 equal to one and a half — two locomotive lengths or two car lengths. Measurement 2 deformations are installed in the center of the freely bending section of the running rail and fastened along the vertical axis of the rail 1 with screws 3. To reduce the error from turning the rails on the freely bending section of the rail 1, the latter is inclined inside the track 4 on the linings 4. To reduce the errors created by applying external forces from adjacent wheelsets to the running rails 1, each running rail 1 is rigidly attached to an additional longitudinal beam 5. To the inside of the heads of the rails 1 are attached to the center rupture pads 6. The strain gauges 2 are placed in the housings 7, made with windows. The rolling stock unit (locomotive, wagon), the weight distribution of which over the wheels is subject to control, moves forward and backward on a freely stretching section of the running rail at a speed not exceeding 1.5 km / h. Preliminarily, the wheelsets 6 are centered about the track axis. The static pressure for each wheel of a rolling stock unit is assumed to be proportional to the average deflection of the running rail 1 when the rolling stock unit moves forward and backward in order to compensate for errors caused by the transfer of axles of wheel sets, friction in axle boxes and wheel-mounted blocks, displacement of axles of carts. The recorded readings of the strain gauges 2 are combined and processed to estimate the longitudinal (distribution of static pressures on axes) and transverse (distribution of static pressures on the wheels of one axle) weighing of the rolling stock unit. According to the results of comparison with the standards of longitudinal and transverse weighing, measures are being taken to adjust it. 6 6 povermuto Srig.

Claims (3)

1. A method of controlling the distribution of static pressure from the wheels of a railway rolling stock, comprising sequentially measuring the deflection of the rail under each wheel of a moving unit of a rolling stock, which judges the distribution of pressure between the wheels, which consists in that, in order to reduce the measurement error , the wheel pairs are centered relative to the axis of the track, and the pressure of the wheels on the rails is determined with a uniform movement of the rolling stock units back and forth. 2. The device for implementing the method according to claim 1, comprising a free-bending portion of the running rail, the ends of which are rigidly connected to an additional longitudinal beam, and strain gauges are installed under the running rail on its vertical axis of symmetry, characterized in that, p. In order to reduce the measurement error, additional beams are placed under the section of the running rail, and centering plates are installed on the inner side of the rail heads before and after the section. 3. The device according to claim 2, wherein the running rails are mounted with an inclination inward of the track.