RU2826910C1 - Device for double-circuit closure and double control of position of switch points for high-speed railways - Google Patents

Abstract

FIELD: rail vehicles.

SUBSTANCE: invention relates to railroad switches. Device for double-circuit closure and double control of position of switch points for high-speed railways, mounted on a switch, contains electric drive installed on foundation angles in the first section, and having control rods and adjustable working rod, made with possibility of providing mechanical connection with external contactor installed in the first section. At the same time by means of working rods, double-arm levers and longitudinal rod there provided is mechanical connection with external contactor installed in the second section. In the second section there is a position control device having a mechanical connection to the switch points by means of control rods.

EFFECT: improvement of accuracy, reliability, service life and safety of train movement.

3 cl, 2 dwg

Description

Field of technology to which the invention relates

The invention relates to railway automation and telemechanics devices and is intended to provide dual-circuit closure of switch points in extreme positions and dual control of the position of turnouts for organizing high-speed and high-speed train movement on railway transport.

State of the art

A switch headset for an electric drive is known for installing a switch electric drive [1]. A unified headset for a switch on reinforced concrete beams is also known for installing electric drives of the SP and VSP types on switch projects 2726.00.000 PTKB TsP2].

Along with the known advantages, these devices have a number of disadvantages due to the complexity of the design, the presence of a large number of units and parts operating with friction of units, sliding elements requiring intensive lubrication, having increased wear, but also not providing sufficiently reliable closure of the switches in extreme positions and control of the position of the turnouts and, as a consequence, low reliability, short service life, high operating costs.

Also known are devices for monitoring the position of a turnout switch, where the switch position sensor is mounted directly on the neck of the stock rail [3, 4, 5], which do not allow monitoring the position of the switches in the other extreme position - removed from the stock rail and the position of the switch is controlled directly by the action of the switch on the sensor, as well as devices for monitoring the position of a turnout switch, where the switch position sensors are mounted as a cantilever on a special frame, creating a structure of irrationally large mass and dimensions.

Disclosure of invention

The objective of the present invention is to eliminate the above-mentioned shortcomings, to provide an increased level of safety by duplicating the main functional units responsible for closing and position control, to expand the scope of application, to unify closing and control devices, to increase the reliability, reliability, service life and safety of train traffic.

The technical result of the device consists in increasing the level of train traffic safety, expanding the scope of application, unifying closing and control devices, increasing the reliability, reliability, service life and safety of train traffic.

The specified task is achieved by means of a device for double-circuit closing and double control of the position of switch blades for high-speed railways, mounted on a switch and containing an electric drive installed on foundation angles in the first section, and having control rods and an adjustable working rod, designed with the possibility of providing a mechanical connection with an external switch installed in the first section, wherein by means of the working rods, double-arm levers and a longitudinal rod a mechanical connection is provided with an external switch installed in the second section, and in the second section a position control device is installed, having by means of the control rods a mechanical connection with the switch blades.

The features of the proposed device are ensured by the following technical characteristics:

- a joint integrated approach to the construction of a kinematic diagram and, accordingly, the design of a device for closing and monitoring the position of switch blades;

- the presence of a design for a mechanism for double locking of the switches at different points - at the tip of the switches and at the end of the planed part directly onto the frame rail, thereby ensuring double-circuit locking and holding of the switches in extreme positions;

- the presence of a tracking type control system with the location of control devices at different points - at the tip of the switches in the electric drive housing and at the end of the planed part directly in the switch closure zone, located inside the track and built on the principle of independent control of the position of the switch switches;

- the presence of a mechanism for controlling the position of the control rods with a device for adjusting the extreme control positions.

Brief description of the drawings

Fig. 1 shows a device for double-circuit closing and double control of the position of switch points for high-speed railways;

Fig. 2 shows a diagram of the construction of a two-circuit closure and holding of the switches in the extreme position.

Implementation of the invention

The device for dual-circuit closing and dual control of the position of switch blades for high-speed railways (Fig. 1) comprises: 1 - electric drive, 2 - adjustable working traction, 3, 12 - working traction, 4 - two control tractions, 5 - external closeers (two sets), 6 - longitudinal connecting strip, 7 - longitudinal connecting strips with a frame fixed to them, 8, 10 - double-arm levers, 9 - adjustable longitudinal traction, 13 - brackets for fastening two control tractions of the control device, 14 - two control tractions for fastening control rulers of the control device with brackets (pos. 13), 15 - switch position control device, 16 - two foundation squares and 17 - two transverse squares for installing the switch electric drive.

The diagram in Fig. 2 shows the principle of constructing a two-circuit locking and holding of switches in extreme positions, where the required result is achieved due to the presence of two circuits of the mechanism for locking switches in extreme positions in the first and second sections of the switch switches, constructed on the basis of external locks (pos. 5) according to the general view shown in Fig. 1.

Due to the use of two mechanisms for closing the switches in the extreme position in the first and second sections of the switch switches, made on the basis of external closeers, a circuit with a two-circuit closing and holding of switches in extreme positions and two control devices is constructed, made: the first - on the basis of an automatic switch of the electric drive, the second - on the basis of an independent electromechanical position control device, safety is guaranteed in case of emergency situations, namely in the event of:

- loss of mechanical connection between the electric drive gate and the working rod, since it does not lead to opening of external contacts and movement of the switches away from the stock rail;

- breakage of the external locking device - loss of mechanical strength of the clamp unit, since it does not lead to the tongues moving away from the stock rail, since they remain held in the closed state by the second external locking device;

- the presence of two control devices located in the first and second sections, since a defect in the switch locking mechanism is detected no later than the next switch change.

This design allows us to obtain new quality indicators, increase the reliability and safety of train traffic, unify and expand the areas of application of the electric switch drive, reduce operating costs and use it on high-speed sections of railways.

Comparative analysis shows that the indicated differences between the declared device and the prototype represent a number of new features, which determines its “novelty” criterion.

No solutions with similar distinctive features were found in the patent and scientific and technical literature. In this regard, a conclusion is made about the compliance of the invention application with the criterion of "significant differences".

The device for dual-circuit closing and dual control of the position of switch points for high-speed railways (Fig. 1 and Fig. 2) operates as follows:

Electric drive 1, installed on a special frame consisting of transverse angles 17, secured to foundation angles 16 and longitudinal strips 6 and 7, secured directly to the switch beams of the switch, by means of adjustable working rod 2 has a direct mechanical connection with external locking device 5, located in the first section - at the tip of the switch points, and also by means of working rod 3 of double-arm lever 8, adjustable longitudinal rod 9, double-arm lever 10, installed on longitudinal strip 11 and working rod 12 has a mechanical connection with external locking device 5, located in the second section - at the end of the planed part of the switch points.

The presence of two external locks located in the first and second sections of the switch points ensures dual-circuit locking of the switch points.

Electric drive 1, by means of two control rods 4, secured on one side to the switch blades in the first section - at the tip of the blades, and on the other side - to the control lines of the electric drive of the switch k, has a mechanical feedback connection, which, by means of an electromechanical device of the electric drive automatic switch, ensures control of the position of the blades relative to the stock rails in the first section - at the tip of the blades.

Mounted on the switch and connected by means of control rods 14 to the switch blades in the second section - at the end of the planed part of the switch blades, the Switch Blade Position Monitoring Device 15 (see Fig. 1) which, by means of an electromechanical device, monitors the position of the blades relative to the stock rails in the second section.

The presence of an electromechanical device of the electric drive automatic switch 1 in the first section and an electromechanical device for monitoring the position of the switches 15 ensures double monitoring of the position of the switches of the turnout.

Thus, in the described device for dual-circuit closing and dual control of the position of switch blades for high-speed railways, due to the use in the design of two external closeers 5, located in the first and second sections of the switch blades, dual-circuit closing of the switch blades is ensured (see Fig. 2), and, due to the use in the design of two electromechanical devices for monitoring the position of the blades relative to the stock rails in the first section - as part of the electric drive 1 and the electromechanical device for monitoring the position of the blades 15 (see Fig. 1), dual control of the position of the switch blades of the tracking type is performed, built on the principle of independent control of the position of the switch blades, safety is guaranteed in the event of emergency situations, the design is simplified, allowing for an expansion of the scope of their application, unification, a reduction in operating costs, an increase in the reliability, reliability of operation, service life and the safety of train traffic.

Sources of information

1. Electric drive pointer fittings. Patent No. RU 97697U1 dated 2010.09.20.

2. Unified fittings for a turnout on reinforced concrete beams. Patent No. RU 106203U1 dated 2011.02.08.

3. Switch position control device ELP 319. Technical data sheet. Siemens.

4. Device for monitoring the position of switch points and movable cores of switch frogs. Patent No. RU 2549316 C2 dated 2013.02.14.

5. Controller KEA-3. Technical data sheet. ABB.

Claims (3)

1. A device for dual-circuit closing and dual control of the position of switch blades for high-speed railways, mounted on a switch and containing an electric drive installed on foundation angles in a first section, and having control rods and an adjustable working rod, designed with the possibility of providing a mechanical connection with an external switch installed in the first section, wherein by means of the working rods, double-arm levers and a longitudinal rod a mechanical connection is provided with an external switch installed in the second section, and in the second section a position control device is installed, having a mechanical connection with the switch blades by means of the control rods. 2. The device according to item 1, characterized in that it contains an adjustable working rod, designed with the possibility of providing a mechanical connection with an external contactor installed in the first section, and by means of the working rods, double-arm levers and longitudinal rod, a mechanical connection is provided with an external contactor installed in the second section, in the presence of one electric drive installed in the first section, forming a double-circuit closing and holding the switches in extreme positions. 3. The device according to item 1, characterized in that it contains an electromechanical device in the form of an automatic switch of the electric drive, made with the possibility of ensuring control of the position of the switches relative to the stock rails in the first section, and a device for monitoring the position of the switches, made by means of an electromechanical device with the possibility of monitoring the position of the switches relative to the stock rails in the second section, which together provide double control of the position of the switches of the turnouts.