RU84540U1 - SCALES FOR WEIGHING IN MOTION AND STATICS WITH THE USE OF WEIGHT MODULES - Google Patents

Abstract

1. Scales for weighing in motion and statics, consisting of at least one weight module mounted on a rigid base in the form of two support plates installed between the sleepers under each track of the railroad track and the weight controller, and transmitting data to a computer, characterized in that the scales use a weight module based on cantilever load cells fixed to the base plates, and under each track of the railroad track reinforcement under the rail is made. ! 2. Scales for weighing in motion and statics according to claim 1, characterized in that the reinforcement is made using a sheet of metal or a channel, or a metal corner, or a metal beam.

Description

Application area

The utility model relates to a weight measuring technique and can be used to weigh railway objects in motion and statics.

State of the art

A device of scales is known (patent No. 2313069), which includes a flat sensor with a built-in assembly of the original design. The device contains a section of the railway track without joints, including rails and sleepers lying on the ground. On each railroad tie of the section under the rails, two flat compression force sensors are installed, each with an in-line assembly. The length L of the railway section is determined by the formula L = L _gy + 0.45V, m, where L _gy - the length of the receiving device, m; V-speed of rail transport, m / s. The flat compression force sensor comprises a lower and upper plate, an active sensing element and is additionally equipped with a passive sensing element and a sealed housing. The insertion unit contains a lining, on which a flat sensor of compression force is placed, and is equipped with an additional lining with sides for fixing the sensor on a lining under the rail.

The disadvantages of this invention are that the scales use a sensor of the original design, developed and manufactured specifically for this type of balance. The sensor included in the balance consists of several components. The number of sensors used in the balance depends on the speed of the cars. There is no provision for weighing railway cars in statics. Known invention (patent No. 2287137), in which weighing is carried out when moving a weighed railway object along uncut rails of standard length, and measure the current value of the force acting through the wheels of the weighed railway object, on one point section of each rail, installed on the same vertical the point of the rail section of the load cell, when passing through the point of the rail section of the wheels of the weighed railway object, record the maximum values of force, summarizing ie the values of all recorded maximums strength values.

The disadvantages of this invention is that weighing on the scales occurs in one short weight section. Scales have a low accuracy class. There is no provision for weighing railway cars in statics. This method is intended for axial weighing only. With this method of weighing, it is impossible to determine the direction of movement of the scales.

The closest analogue is the patent for utility model of the Russian Federation No. 76711, in which, railway scales, made in the form of a set of weight rail linings (GRP) in the weighing area. At the place of installation of scales on reinforced concrete sleepers ШС-1, replace the existing rails of the rail fastening on the GRP (Fig. No. 1) complete with embedded bolts for fastening to the railroad ties. Bolt length increased by 40 mm. Also, GRP can be installed on the embedded part, poured into the concrete base of the balance. The force applied by the wheel to the rail with the help of GRP is converted into an electrical signal. The signal processed by the weight controller enters the computer (Figure 2). Since GRP has a class C3 characteristic, its application will provide a weighing error for static weights of 0.1%, for weighing weights in motion 1%.

The proposed design of the scales can be installed on any railway tracks, depending on the weighing methods, it is able to work in harsh operating conditions (dust, humidity, temperature limits).

The disadvantage of the prototype is the use of a specialized load cell, made only for the specified type of balance.

EFFECT: simplification of the design of railway scales for weighing cars in motion and statics, modular construction of scales, elimination of the loading platform in the scale design, ease of installation and maintenance, increase in the total length of the weight section.

Brief Description of the Drawings

Figure 1 shows the device of the weighing module and the design of the scales, where 1 is a rigid support base, 2 is a base plate, 3 is a mounting unit, 4 is a reinforced concrete sleepers, 5 is a rail, 6 is a weight module, 7 is a cantilever load cell, 8 is Weight controller, 9 - Computer, 10 - gain, L1-distance between sensors in the module.

Figure 2 shows the device scales with several weight modules, where L2 is the distance between the weight modules themselves.

Utility Model Implementation

The claimed technical result is achieved due to the fact that the scales for weighing in motion and statics, consisting of at least one weighing module mounted on a rigid base in the form of two base plates installed between the sleepers under each track of the railway track and the weight controller, and transmitting data on a computer, characterized in that the scales use a weight module based on cantilever strain gauges fixed to the base plates, and under each track of the railway track reinforcement is performed under by rail.

Reinforcement can be performed using a sheet of metal or a channel, or a metal corner, or a metal beam.

Scales can consist of two or more weight modules.

In the design of weighing modules, single-arm console load cells are used. The design of the railway scales, made in the form of a set of weight modules at the weighing site.

The weighing module (6) (see Figure 1) consists of two base plates (2) installed between the sleepers (4) under each track of the railway track on a rigid, for example, concrete base (1) and cantilever load cells mounted on them (7) ) on which the railroad rails (5) are installed with the help of knots of inlays (3). The elements of the module are fastened together by bolted connections. The rail (5) can be reinforced with side pads. The force exerted by the wheel on the rails (5) using the weight module (6) is converted into an electrical signal. The signal processed by the weight controller (8) enters the computer (9), where the received data is processed. Since the cantilever load cells (7), which are part of the module (6), have a class C3 characteristic, their application will provide a weighing error for static weights of 0.1%, for weighing weights in motion 1%.

The gain allows you to increase the distance (L1) (see Figure 1) between the sensors in the module and the distance (L2) between the weight modules themselves, when they are multiple placed (see Figure 2). As a result, reinforcement (10) and weight modules (6) allow to increase the total length of the weight section.

The proposed design of the scales can be installed on any railway tracks, depending on the weighing methods, it is able to work in harsh operating conditions (dust, humidity, temperature limits). One of the advantages of the proposed scales is the absence of a loading platform in the balance. This, as well as open access to strain gauges, provides ease of installation and maintenance of the balance.

The installation of several modules in the balance (see Figure 2) allows you to obtain more accurate measurement results based on complex data and provides modularity, which allows the balance to conduct continuous measurements in the event of a breakdown or replacement of one of the modules.

Claims (2)

1. Scales for weighing in motion and statics, consisting of at least one weight module mounted on a rigid base in the form of two support plates installed between the sleepers under each track of the railroad track and the weight controller, and transmitting data to a computer, characterized in that the scales use a weight module based on cantilever load cells fixed to the base plates, and under each track of the railroad track reinforcement under the rail is made. 2. Scales for weighing in motion and statics according to claim 1, characterized in that the reinforcement is made using a sheet of metal or a channel, or a metal corner, or a metal beam.