RU91165U1 - WAGON SCALES WITH USE OF WEIGHT MODULES BASED ON TWO-SUPPORT BALED TENSO SENSORS - Google Patents

Abstract

The utility model relates to a weight measuring technique and can be used to weigh railway objects in motion and statics. Effect: simplification of the design of railway scales for weighing cars in motion and statics, modular construction of scales, elimination of the load-bearing platform in the design of scales, ease of installation and maintenance. The claimed technical result is achieved due to the fact that the scales for weighing in motion and statics, consisting of at least one weight module mounted on a crushed stone or rigid base, for example concrete or metal, in the section of the railway track and the weight controller, transmitting data to a computer, characterized in that the scale uses a weight module based on double-beam beam load cells.

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 track section is determined by the formula L = L _gu + 0.45V, m, where L _gu is the length of the receiving device, m; V is the speed of rail transport, m / s. The flat compression force sensor contains 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. It is not intended to weigh 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 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, and 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.

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 use of at least four cantilever load cells in one weight module, the load cells in the module are installed only on a special rigid base (base plates), a large number of bolt joints in the nodes of the load cell inlays (at least 48 bolt joints).

Effect: simplification of the design of railway scales for weighing cars in motion and statics, modular construction of scales, elimination of the load-bearing platform in the design of scales, ease of installation and maintenance.

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 weight module mounted on a crushed stone or rigid base, for example concrete or metal, in the section of the railway track and the weight controller, transmitting data to a computer, characterized in that the scale uses a weight module based on double-beam beam load cells. In addition, the balance may consist of two or more modules. In addition, in the weighing module, a channel or beam or a profile pipe is used as a rigid base.

Brief Description of the Drawings

Figure 1 shows the device of one of the two nodes of the installation of the double-girder load cell in the weight module, where 1 is the reinforced concrete sleepers, 2 - Elements of the installation unit, 3 - Double-girder beam load cell, 4 - Standard elements of rail fasteners, 5 - Rail.

Figure 2 shows the device of the weighing module and the design of the scales, where 6 is the Assembly unit assembly with a two-beam beam load cell, 7 is the Weight module assembly, 8 is the Weight controller, 9 is the Computer.

Figure 3 shows the device scales with several weight modules.

Utility Model Implementation

The weight module (7) (see Figure 2) consists of two nodes of inserts (6) with double-beam beam load cells (3) (see Figure 1) mounted on a reinforced concrete sleepers ШС-1 (1) (see Fig. 1) or other rigid base. The weight module (7) is installed in the track of the railroad track on a crushed stone or rigid base, for example, concrete or metal. The rail (5) can be reinforced with side pads. The force exerted by the wheel on the rails (5) using the weight module (7) (see Figure 2) is converted into an electrical signal. The signal processed by the weight controller (8) (see Figure 2) enters the computer (9) (see Figure 2), where the received data is processed. Since the double-beam beam load cells (3) (see Figure 1), which are part of the module (7) (see Figure 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). One of the advantages of the proposed scales is the lack 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 3) 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.

The exclusion of a large number of bolted joints in the nodes of the integrated strain gauges, which is characteristic of the prototype, simplifies the design of the claimed weights.

Claims (3)

1. Scales for weighing in motion and statics, consisting of at least one weight module mounted on a crushed stone or rigid base, for example concrete or metal, in a section of a railway track and a weight controller that transfers data to a computer, characterized in that in the scales a weight module is used based on two-support beam load cells. 2. Scales for weighing in motion and statics according to claim 1, characterized in that the balance consists of two or more modules. 3. Scales for weighing in motion and statics according to claim 1 or 2, characterized in that in the weight module a channel or beam or a profile pipe is used as a rigid base.