RU113578U1 - SCALES FOR WHEEL WEIGHTING OF RAILWAY OBJECTS - Google Patents

Abstract

1. Scales for weighing in motion and statics, consisting of at least one weighing module installed on a section of a railway track and a weight controller transmitting data to a computer, characterized in that the weighing module is configured to be installed in the track of the railway track on the rail and consists of two-support beam or cantilever load cells, above which a load-receiving element is installed, the function of which is to transfer the weight force from the car wheel to the load cell, and the load cells themselves are installed on a support base placed between two rails on sleepers. ! 2. Scales for weighing in motion and statics according to claim 1, characterized in that the load cells are located in the area of the wheel flange. ! 3. Scales for weighing in motion and statics according to claim 1 or 2, characterized in that the balance consists of two or more modules.

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 _ry + 0.45V, m, where L _ry is the length of the cargo receiving device, m; V is the 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 movement 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.

A patent is known for a utility model of the Russian Federation No. 76711, in which, a railway scale, made in the form of a set of weight rail linings (GRP) in the weighing area. At the place of installation of the 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 can work in harsh operating conditions (dust, humidity, temperature limits).

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

The closest analogue is the patent for utility model of the Russian Federation No. 81318, in which the railway scales, made in the form of a set of weight modules, consisting of at least one weight module mounted on a rigid base in the form of two base plates installed between the sleepers under each track of the railway web and weight controller, and transmitting data to a computer, characterized in that the scales use a weight module based on cantilever strain gauges attached to the base plates. 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 disadvantage of the prototype is the dismantling of the railway track and the installation of weight modules at this place, which leads to significant time and material costs.

Technical result: simplification of the design of railway scales for weighing cars in motion and statics, elimination of the loading platform in the design of the scales, ease of installation / dismantling without the need to disassemble the railroad tracks, ease of maintenance, when checking the scales, it is not necessary to use a weighting car.

The specified technical result is achieved due to the fact that the scales for weighing in motion and statics, consisting of at least one weight module installed on a section of the railway track and a weight controller that transfers data to a computer, characterized in that the weight module is configured to installed in the track gauge on a rail and consists of double-beam or cantilever load cells, over which a load-receiving element is installed, the function of which is to transfer the weight Celia from wagon wheels to the load cell and strain gages themselves are mounted on a support base to be placed between two rails to the sleepers.

Strain gages can be located in the flange zone of the wheel.

A possible implementation of the utility model is that the balance consists of two or more modules.

Brief Description of the Drawings

Figure 1 shows the device of one of the assemblies of the double-beam support load cell in the weighing module, where, 1 - Wheel, 2 - Elements of the mount unit, 3 - Strain gauge, 4 - The support base of the sensors, 5 - Reinforced concrete sleepers, 6 - Rail.

Figure 2 shows the device of one of the nodes for mounting the cantilever load cell in the weight module, where the cantilever load cell is used as the load cell.

Figure 3 shows the device of the weighing module with a longitudinal arrangement of sensors, 7 - Spacer bar.

Figure 4 shows the device of the weight module with a transverse arrangement of sensors.

Figure 5 shows the device of the weight module in operation, where 8 is a Computer.

Utility Model Implementation

Scales consist of at least one weight module, are installed directly on the rails of the existing section of the railway track and the weight controller, transmitting data to the computer.

In the design of the weighing modules, two-support beam or cantilever load cells are used. The design of the railway scale is made in the form of a set of weight modules at the weighing section.

The weighing module consists of two assemblies of inlays with double-beam girders (see Figure 1) or cantilever (see Figure 2) load cells (3) mounted on a support base (4).

The weight module is installed in the track of the railway track on the rail (6). The force exerted by the flange of the wheel (1) through the load-receiving element (2) is converted into an electrical signal. The signal processed by the weight controller (not shown in the drawings) enters the computer (8) (see Figure 5), where the received data is processed.

Since the double-girder beam or cantilever load cells (3) included in the module (2) 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 proposed design of the scales can be installed on any railway tracks, depending on the weighing methods, it can work in harsh operating conditions (dust, humidity, temperature limits).

Depending on the principle of the arrangement of strain gauges (3) transversely (see Figure 4) or longitudinally (see Figure 3), either a flat base (4) or an expansion rod (7) can be used respectively, the function of which is a module spacer with separate longitudinal bases.

One of the advantages of the proposed scales is that scales are installed in the existing railroad track to allow weighing a pair of wagons on the flanges; there is no need to carry out construction work, there is no load platform in the scales. 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 5) allows 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.

When using two or more modules, you can weigh the whole car.

When checking the scales, you do not need to use a weighing car (its rental is very high from 80,000 rubles and above), since the scales are checked with ordinary M1 class weights.

Claims (3)

1. Scales for weighing in motion and statics, consisting of at least one weight module installed on a section of a railway track and a weight controller that transmits data to a computer, characterized in that the weight module is configured to be mounted on a rail track and consists of double-beam or cantilever load cells, over which a load-receiving element is installed, the function of which is to transfer the weight force from the car wheel to the load cell, and the load cells themselves mounted on a support base placed between two rails on the sleepers. 2. Scales for weighing in motion and statics according to claim 1, characterized in that the load cells are located in the flange of the wheel. 3. Scales for weighing in motion and statics according to claim 1 or 2, characterized in that the balance consists of two or more modules.