RU2785444C1 - Device for changing the geometry of the contact network above the railway crossing - Google Patents

Abstract

FIELD: contact networks.

SUBSTANCE: invention relates to a contact network. The device for changing the geometry of the contact network above the railway crossing contains a drive, which is connected to the tie rod system and the contact wire, a rod insulator and a transition profile by means of articulated joints. Moreover, the drive is located on the block of the crossbar and is fixed on metal supports, the traction system consists of a drive rod, a console, a supporting console and a tubular console. A rod insulator, a counterweight and a transition profile connected to the contact wire are installed on the supporting console. The tubular console is equipped with a bearing, and the drive rod is connected to the console and the drive.

EFFECT: increasing reliability and ensuring unhindered passage of large-tonnage vehicles at a serviced railway crossing.

6 cl, 5 dwg

Description

The invention relates to a contact network, namely to an automated remote change in the geometry of the contact network, including over a railway crossing.

Known rotary suspension of the contact busbar of the power supply system of high-speed electric trains, realizing the possibility of carrying out maintenance work on electric trains in enclosed spaces, due to the removal of the ceiling contact busbar in a horizontal plane from the upper maintenance area of electric trains using a system of rotary suspensions (patent No. 144854, IPC: V60M 1 /20, published on September 10, 2014, BI No. 25) - analogue.

The disadvantage of the known solution is the low reliability of the device and the impossibility of tapping the contact network in the vertical direction, which is necessary to ensure the normal operation of vertical loaders in the area of loading / unloading cars and container platforms at railway stations and in terminal logistics centers (TLC).

A device for the removal of a contact network with a change in its geometry is known (RF patent No. 2759355, IPC: V60M 1/20, publ 11/12/2021, bull. 32) - a prototype.

The known device for the removal of the contact network contains a drive and a damping element, and the device is made with a variable geometry and contains the upper and lower supporting structures placed on the support of the contact network, an electromechanical motor drive is attached to the lower supporting structure, and the electromechanical motor drive and is rigidly fixed on the support of the contact network the upper supporting structure is connected by means of articulated joints to a system of rods, including a drive rod, a console, a supporting rod, a synchronizing rod and an adjusting rod, and with a support of the contact network and a transition profile connected to the contact wire, and on the adjusting rod, the synchronizing rod and non-insulated console is equipped with rod retaining insulators.

The disadvantage of the known solution is that the known retraction mechanism is intended exclusively for operation on the side sections of railway stations, and its design and principle of operation do not allow achieving the required angle of change in the geometry of the existing contact network, and, therefore, the known device does not allow freeing the overcar space of the railway moving from the contact network with maximum clearance.

The technical result, to which the claimed solution is directed, is to increase the reliability and ensure the unhindered passage of large-capacity vehicles at the serviced railway crossing, due to the removal of the contact network to ensure the maximum size.

The specified technical result is achieved by the fact that the device for changing the geometry of the contact network above the railway crossing contains a drive, which is connected by means of articulated joints with a system of rods and a contact wire, a rod locking insulator and a transition profile, the drive being located on the crossbar block and fixed on metal supports, the rod system consists of a drive rod, a console, a supporting console and a tubular console, a rod fixing insulator is installed on the supporting console, a counterweight and an adapter profile connected to the contact wire, the tubular console is equipped with a bearing, and the drive rod is connected to the console and the drive placed on crossbar block.

A device characterized in that the drive is mounted on the crossbar block by installing support elements - tables.

A device characterized by the fact that an electromechanical drive is used.

A device in which an aluminum profile is used, designed to support the contact wire in the span of the contact network supports relative to the railway track.

A device in which the console is made of steel or aluminum.

A device in which the drive rod is cylindrical.

The proposed solution is specified in Fig. 1-5, where in Fig. 1 shows a general view of the device placed on the block of the crossbar, with the designation of the nominal dimensions Hkp (slave) - the distance to the contact wire when the trains are moving, Nkp (otv) - the distance in the allotted state for the passage of large-tonnage transport, in Fig. 2 is a general view of the proposed device, in Fig. 3 shows a kinematic change in the geometry of the proposed device during its operation, in Fig. 4 shows the support console, FIG. 5 - working position of the proposed device above the railway crossing.

The operation of the claimed device for automated remote geometry change consists in the fact that after removing the voltage, quickly and reliably by remote control from the remote control of the duty officer at the railway station, or the dispatcher of the terminal and logistics center (hereinafter referred to as TLC), the overcar space at the railway crossing is freed from the contact network, for passage of heavy vehicles. The removal of the contact network is carried out by moving it upwards in the vertical direction to the block of the crossbar, for which the geometry of the contact network is changed by means of a drive, a traction system, including a drive traction, a console supporting the console on which a rod retaining insulator is installed and articulated joints connecting the traction system with a crossbar block of the contact network and a transition profile connected to the contact wire.

The main advantage of applying the proposed solution in comparison with the prototype under operating conditions (daily cycle of passage through railway crossings) is the ability to travel through railway crossings without spending time on relocating cargo to the place of loading/unloading.

The device for remote change of the geometry of the contact network (Fig. 2) is mounted on the crossbar block 1, fixed on metal supports 2, by installing support tables 3. The inventive device is made with a geometry that changes during operation and contains an electromechanical drive placed on the crossbar block 1 of the contact network 6 connected with the drive rod 4 and the console 5. The electromechanical motor drive 6 is connected by a swivel assembly 7 to one of the ends of the drive rod 4, the second end of which is connected by a swivel assembly 8 to the console 5, which is connected by a swivel assembly 9 with a supporting console 10 on which a rod retaining insulator 11 is installed, a counterweight 12, for example, a cast-iron load, and an aluminum transition profile 13. The counterweight 12 and the transition profile 13 are connected to the contact wire 14. The tubular console 15 is equipped with bearings 16 that drive the rotation shaft tubular console 15 in motion, and the drive rod 4 is connected to the console 5 and drive 6, placed on the crossbar block 1.

The counterweight used, in conjunction with other elements of the device, provides the necessary kinematic trajectory during the operation of the proposed device, and its mass dimensions depend, for example, on the installed drive power, the calculated trajectory of the change in the geometry of the contact network, the dimensions of the consoles, etc. In particular, for a UMP-II drive with a power of 250 W and a supporting console with a diameter of 60 mm, calculations were made for static and dynamic stability, a 3D model was built, and the result was obtained that the mass of the counterweight required to ensure a given trajectory and achieve the stated technical result is 25 ±0.2 kg.

In FIG. 3 shows a kinematic change in the geometry of the contact network for unimpeded passage at a manned railway crossing, the claimed device, which is controlled from the control panel of the duty officer at the railway station, or the dispatcher of the TLC who gives the command to change the geometry of the contact network by remote control to the actuator, made in the form of an electromechanical motor drive 6. An electromechanical motor drive 6 of domestic serial production is used, used in everyday operation on electrified railways, for example, UMP-II, UMPZ-II, PJz-3, etc. The electromechanical motor drive 6 is fixed on the crossbar block 1. When a control signal is applied to the electromechanical motor drive 6, a vertically translational downward movement is performed, followed by the movement of the drive rod 4 vertically downward. One end of the drive rod 4 is connected to the swivel assembly 7, the other end to the swivel assembly 8 of the console 5. The swivel assembly 9 serves to create the main effort to change the geometry of the contact network over the railway crossing. The supporting console 10, connected to the lower part of the console 5 by means of the shaft of rotation of the tubular console 15, when the main force is created in the hinged swivel assembly 7, begins to change the geometry of the contact network by moving upwards to the block of the crossbar. By means of a damping device 17, a contact wire of the MF brand (copper shaped) 14 is connected to the supporting console 10 through an aluminum transitional supporting profile 13. The main task of the damping device 17 is to improve the quality of current collection by the current collector of the electric rolling stock. Console (thrust) drive 4 is designed to set the geometry of the vertical movement of the contact network. The other end of the drive console 4 is connected to the console 5 through a swivel assembly 8. The main purpose of the console 5 is to set a fixed position of the contact network relative to the axis of the railway track. On the supporting console 10 there is a rod locking insulator 11 and a hinged swivel assembly 9 connecting the rod system with the crossbar block and the adapter profile 13 connected to the contact wire 14. In order to ensure the safe performance of work when adjusting the contact network, taking into account the current requirements of labor protection standards and electrical safety, supporting console 10, drive rod 4 and console 5 are electrically separated by means of a rod retaining insulator 11. As a rule, an aluminum adapter profile 13 is used that supports the contact wire 14 in a horizontal plane relative to the axis of the railway track.

Upon completion of the logistic cycle of passage through the railway crossing, the contact network returns to its original position by remote control from the station duty officer or the TLC dispatcher.

The use of the proposed solution, along with providing technical advantages, reduces the operating costs of fuel and energy resources by:

- exclusions from the technological cycle of shunting work for the redeployment of cargo and changes in the route;

- saving fuel and energy resources used for cargo transportation;

- ensuring a high level of electrical safety and compliance with labor protection standards, minimizing occupational injuries when organizing work in the area of a serviced railway crossing, through the use of the claimed device, and minimizing the influence of the human factor that occurs during the operation of contact network devices by operational personnel;

- increase in labor productivity, intensity of cargo work, increase in freight turnover;

- ensuring high technical and economic indicators by increasing the reliability of the contact network devices and improving the technical level of the quality of servicing devices in the area of the serviced railway crossing.

Claims (6)

1. A device for changing the geometry of the contact network over a railway crossing, containing a drive connected by means of articulated joints to a system of rods and a contact wire, a rod retaining insulator and a transition profile, characterized in that the drive is located on a crossbar block and fixed on metal supports, the system the rods include a drive rod, a console, a supporting console and a tubular console, and a rod locking insulator, a counterweight and an adapter profile connected to the contact wire are installed on the supporting console, the tubular console is equipped with bearings, and the drive rod is connected to the console and the drive located on the crossbar block . 2. The device according to claim 1, characterized in that the drive is mounted on the crossbar block by installing support tables. 3. The device according to claim 1, characterized in that an electromechanical drive is used. 4. The device according to claim 1, characterized in that an aluminum profile is used, which is designed to support the contact wire in the span of the contact network supports relative to the railway track. 5. The device according to claim 1, characterized in that the console is made of steel or aluminum. 6. The device according to claim. 1, characterized in that the drive rod is made of a cylindrical shape.

Images