SU932270A1 - Scales for weighing vehicles in motion - Google Patents

Description

one

This invention relates to a weighing device.

Scales for weighing vehicles are known; The weight and support parts are connected by elastic ties that form a continuous surface in the upper part, and the weight part rests on the sensor tl.

The scales, due to the reduction of the measuring section by the size of the elastic connections and the appearance of flow forces and moments when supported by the sensor, have increased errors during weighing and, accordingly, cannot be used for weighing vehicles in motion.

The closest in technical essence to the present invention are scales, comprising a platform supported by a sensor, elastic connections for connecting the platform with the supporting structure. The platform rests on one sensor at a point that is

center of elastic rotation of the platform under the action of an arbitrary external moment t21.

In known scales, the platform is made in the form of a rectangular plate, which makes the design cumbersome, difficult to install and assemble. The impossibility of making these scales in the form of a single complete unit is the main obstacle

10 to the creation of modern mass production and increase the accuracy of the scales.

The purpose of the invention is to increase the accuracy of weighing.

t5

Claims (2)

The goal is achieved by the fact that the platform is made in the form of a beam, separated from the supporting structure by a through slit, and the horizontal elastic connections are formed by at least four steps, each of which is fixed by its ends on the sides of the platform and the supporting structure to form resilient parallelogram with one of the remaining tg, with an elastic adjustment element inserted between the platform and the support structure, mounted for movement along the beam axis. The drawing schematically shows the scales. The scales for weighing vehicles in motion contain a platform -1, made in the form of a beam, for example an I-beam on which rail 2 sections are fixed. Platform 1 is connected to the supporting structure 3 by elastic connections k placed on both sides of the platform to form an elastic parallelogram. Platform 1 is supported by a load sensor 5 at the point of elastic rotation of the system under the action of an arbitrary moment. To align the position of the sensor 5 bearing with the specified point, an elastic adjustment 6 is inserted with sliding supports 7. Platform 1 is separated from the supports; KOHCTpyKiiMM 3 through hole 8. To reduce the dicky effect, slot 8 can be performed sufficiently in the plan obliquely at a certain angle to the longitudinal rail 2. When weighing, a railroad car wheel (not shown) drives onto platform 1, which, together with elastic connections k, provides a constant force on sensor 5. During iBcero time spent on the wheel on platform 1, the dynamic component of the noise is filtered. A signal from sensor 5, proportional to the measured load, is transmitted to a recording device (not shown), where it is processed and measured. Scale for weighing p vehicles in, containing a platform supported by a sensor, horizontal elastic connections for connecting a platform with a support structure, characterized in that, in order to improve the weighing accuracy, the platform is made in the form of a beam separated from the support structure through the gap, and the horizontal elastic bonds are formed by at least four rods, each of which is fixed with its ends on the sides of the platform and the supporting structure, to form / a parallel parallelogram mm from one of the remaining m grams, with an elastic adjusting element inserted between the platform and the supporting structure, mounted for movement along the beam axis. : Sources of information taken into account in the examination 1. US Patent No. 3747715, cl. 177-1, 1973. 2, USSR Copyright Certificate No. N.2425055 / 18-10, cl. G 01 G 19/00, 01.1.76. I i V