RU6199U1 - AUTOMATIC CONTROL SYSTEM - Google Patents

Abstract

An automatic control system for a track-crossing machine, containing a computer, with the inputs of which are connected sensors of the position of the machine at the track point, the current state of the track at this point, and a flash card of the design state of the track and / or its alignment parameters, and with the computer's outputs, devices for generating executive signals for corresponding working bodies, characterized in that the sensors of sleeper and rail plates connected to the corresponding computer inputs are introduced into the system.

Description

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The proposed utility model relates to devices for repairing rail tracks, in particular, to straighten a track in a longitudinal profile, in level and in plan, compacted ballast under the sleeper w and from the ends of the sleepers, and relates to automatic control systems for straightening-tamping and straightening maashnagZh,

Known straightening-tamping-leveling (overhanging) machines, for example, BIIP-02 machine (see. Ju., Technical Description I02o.00.00.000 TO, M., Transport, 1995).

A well-known machine contains a measuring system and working bodies of doshas located on the carriage. perform technological operations to repair the track.

The measuring system serves to: determine deviations in the path and give commands to the working bodies, that is, in essence, is not only a measuring system, but also to a certain extent a control system that automates a number of technological operations.

The working bodies (actuators) include a lifting and straightening device acting on the rails, and tamping blocks acting on the ballast.

The well-known guide-way machine works either by the method of smoothing, when the control and measuring system automatically sends commands to the lifting-leveling device, reducing deviations in the position of the track in plan, longitudinal and transverse profiles, or according to fixed point methods, when the path is preliminarily divided, which determine the necessary size of the shift and the lifting of the path every 4-5 nshal, when the shift and lifting is recorded on the corresponding sleepers and when straightening is installed on the operator panel.

As a result of studies related to the development of measures to improve traffic safety, it was found that the design parameters of the track plan and elevation of the outer rail, as a rule, are not maintained neither during the initial laying of the track, nor during subsequent straightening. Smoothing machines using the smoothing method Without taking into account the parameters of the curves, they create long horizontal irregularities, claim} to; they form the shapes of the transition curves, transform single-radius curves into complex components, dimension and inter-track distances are formed. The current norms in terms of paths, regulating only the differences of the bending arrows, do not limit the deviations of the curve parameters (radii, lengths of transition curves, positions typical of i © 4tic,). It should also be noted that the quality of repair of a track using a well-known overhead car, despite its rather high degree of automation, depends to a large extent on the qualifications and condition of the driver (operator), since there are many parameters that determine the measure of the impact of the working bodies of the machine on the track and ballast , and, on the other hand, the degree of control of the outcome of these effects is subjective.

Tools have been developed to address these

deficiencies (see GC R &. Siberian State Academic Academy of Railways. Scientific and Engineering Center Prayets. Novosibirsk., 1966). These tools contain computers

 2

into the measuring system of the road knife of the machine, to the corresponding inputs of which are connected: a sensor of the traveled path, a flash card with the data necessary for setting the path to the design position, and track status sensors.

The current signals received at the computer inputs and s, the data are processed and removed from the computer outputs in the form of signals controlling the actuators,

A disadvantage of the known control system is that the natural state of the path is determined by one object (rails), while bringing the path to the design state is carried out by acting on another: the object (ballast). For example, the measurement of the path subsidence at a point is carried out along the rail, and the repair lifting of the path at this as point is carried out by tamping the ballast under the corresponding pshals. At the same time, it may turn out that the working bodies of the tamping block will hit not the ballast, but the sleeper, wsh, moreover, when the sleeper is skewed, it will be impossible to synchronize the operation of two oppozitno located blocks acting on the ballast along the claws of the same sleeper. In addition, there are cases when the roller grips of the lifting-leveling device fall on the side plates of the rail joints, as a result of which the rails break from the grips or are not captured at all. These circumstances require that the driver (operator) and his assistant constantly visual control, taking some decisions: and specific actions, which ultimately hinders the complete automation of the machine, reducing: thereby productivity (due to traffic intensity: -d. transport, time counting during overhaul work is carried out for minutes) and the quality of repair work.

The utility model was tasked with improving the quality and productivity of overhaul work.

The problem is solved by the fact that the proposed automatic control system of the guide-post machine, comprising. A computer, with the inputs of which are connected sensors of the location of the machine at the track point, the current state of the track at this point, and a flash card of the design state and / or track alignment parameters, and with outputs, devices for generating executive signals for the corresponding working bodies,

New in the proposed system is that it includes sensors for surface and rail sensors, overlays associated with the corresponding inputs of the CMM,

The drawing shows a block diagram of a control system.

The control system contains a computer, the corresponding inputs of which are connected to a flash card I, a track sensor 2, designed to determine the actual location of the touring machine on the straightened section of the track, two sensors 3 and 4 to determine the actual state of the track (horizontal and vertical deviations), sensors 5 sleepers and sensors 6 rail slips.

Since in a particular embodiment, a high-frequency computer is used, and the sensors 3 and 4 are analog, they are connected to the computer through analog-to-digital converters 7,

The actuators of the overhead machine not shown in the drawing are also controlled by analog signals, therefore, the computer outputs are connected to the shapers (not shown in the drawing due to the well-known) of these command signals through digital-to-analog converters 8,

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4 The main concept of the work of the control system is task assignment.

When working on an assignment, initially separate measuring means are determined by the actual state of the track. Then, under stationary conditions, the lash map I, the required parameters of the path straightening (task), is calculated and entered in ||). Flash card I with tasks is installed in the system, and the guideline nyTeBoiviy sensor -2 is displayed at the starting point of the straightened area. Upon reaching the starting point, data on the required path straightening parameters at this point (on the magnitude of errors) is received from the flash card I to the computer. The signals generated on the basis of these data are transmitted through digital-to-analog converter 8 to command signal conditioners for actuators controlling the operation of tamping blocks, ballast seals at the end of the sleepers, lifting device, etc. (not known in view of the drawing) Upon completion of the task entered in the flash card, which is monitored by sensors 3 and 4, the operation of the actuators ceases, and data on the natural state of the track are entered in the flash card.

When working in stand-alone mode, the design state of the track is entered into flash card I. Upon arrival at the place of work, the machine initially passes along the required straightening section of the track to remove its full-scale condition. After that, the actual state of the path is compared with its design angle, its correction (errors) is calculated, and the required parameters of the path alignment (task) are entered into the flash card. Next, the machine returns to its starting point and

According to the operator’s command, it starts work in the above-described mode on assignment.

However, the elements of the system involved in the described modes of operation do not provide complete automation during operation of the machine.

So, when a guide-way machine is brought to the required point of RICHTOV1Sh, the pshals often fall into the active zone of the working bodies of the tamping blocks, as a result of which the shock does not fall on the ballast, but on the sleepers. Similarly, although less frequently, lateral overlays of rail joints fall into the aon of the roller grips of the lifting-leveling device, as a result of which the rails either break down during the breakdown, or are not captured by the device at all. In well-known machines to prevent the indicated malfunctions in the work, maintenance personnel constantly monitor and manually correct the position of the machine, which in no way can be attributed to the automatic mode of its operation:

Compared with the prior art, the claimed device allows you to fully automate the operation of the trip-marking machine. For this, a sensor 5 of sleepers and a sensor 6 of rail plates (rail joints) are introduced into the control system thereof. In one of the possible embodiments, the sensor 5 can be structurally made in the form of two-inductance inductive receiving elements mounted on the machine oppositely to each other on opposite sides of the path. When combining the elements with both sleepers of one sleepers, a double signal is sent to the control system, indicating that both knocking blocks are located relative to the corresponding sleepers, and their operation is possible, including with some skewing of the sleepers. If the skew exceeds the permissible value, then the time difference between the signals from both elements of the sensor 5 will block the operation of the tamping blocks, and the further operation of the machine will be dictated by the program: embedded in the control system (for example, skipping one sleepers).

The operation of the double sensor of the rails E 1c of the overlays is comparable to the operation of the double sensor 5 except for the need for synchronous supply of signals from its two elements, each of which interacts with its rail,. unlike sensor 5, single; from any of the two elements of the sensor 6 will block the operation of the lifting device.

Thus, the proposed system provides automatic control of the full working cycle of the machine, including tamping ballast, straightening the path and moving the machine.

Authors

With L. Kozhanov

) rin

.Havtorin

D..I Titov

G.I. Kamsh10v

E.Yu. Kartashov

Claims (1)

An automatic control system for a track-crossing machine, containing a computer, with the inputs of which are connected sensors of the position of the machine at the track point, the current state of the track at this point, and a flash card of the design state of the track and / or its alignment parameters, and with the computer's outputs, devices for generating executive signals for corresponding working bodies, characterized in that the sensors of sleeper and rail plates connected to the corresponding computer inputs are introduced into the system.