RU77838U1 - DEVICE FOR MOVING AND POSITIONING RAILWAY CARS - Google Patents

Abstract

The utility model relates to maneuvering means of rolling stock and is intended to move railway cars over short distances to position them, for example, when washing railway cars or repairing rolling stock. The technical task of the proposed utility model is to increase the operational reliability of the device for moving railway cars by simplifying the design of the unit that controls the operation of the traction rollers, changing the control system for the movement of the pulling cart and the design of its drive. The technical result is achieved due to the fact that in the known device for moving railway cars, containing a pulling trolley with wheelsets that freely moves between the rails of the normal gauge along separately laid auxiliary rails, connected on both sides to the traction cable drive, inside the frame of the pulling trolley is placed a mechanism controlling spring-loaded pairs of pushers rigidly connected to the swing arms and dual traction rollers mounted on both sides of the body frame LCD with the possibility of coupling with the flange of the wheelset of a railway carriage and a control system for the position and movement of the pulling trolley, changes and additions have been made, namely: - the mechanism that controls the traction rollers is made in the form of a copier, consisting of four profile surfaces connected with the possibility of moving along guiding by means of spring-loaded several pairs of rollers, some of which are equipped with hooks in contact with the stops, on which limit switches are located, which are sensors emy control and management of truck traffic; In addition, a number of design changes were made to the device. A new installation project has been completed and new units are being manufactured. The implementation of the device will be carried out during 2006. P.F.5, Fig. 4

Description

The utility model relates to maneuvering means of rolling stock and is intended for moving railway cars over short distances and for positioning them, for example, when washing railway cars or repairing rolling stock.

Known methods for maneuvering rolling stock can be divided into two classes. The first is the movement of cars by pushing them using carts or other means moving along the main rails. The second - with the help of pulling trolleys that are moved along additional tracks and equipped with a mechanism for hard contact with the wheelsets of wagons or other crew units.

A device for moving railroad cars is known, including a traction drum with a drive, a traction rope and a bypass unit, the drum drive being equipped with a brake, and the traction rope is made in the form of an endless branch and is equipped with a rope pre-tensioning device and a gripper located on the lower branch of the traction rope (Patent RF №29023, published on April 27, 2003).

A disadvantage of the known device is the low reliability of the tension rope, because there is no direct contact with the wheelset of the car and the possibility of moving the car only in one direction.

A device is known for moving railway cars over short distances, comprising a drive traction member located along the track with a carriage fixed to it, on the housing of which support rollers are mounted, which can be supported on guides laid inside the track, and a pushing roller for interacting with wheel pair elements . The carriage body is made in the form of a two-shouldered balancer with a central protrusion, bearing supporting rollers and a pushing roller, respectively, at the ends and on the protrusion. The axis of the balancer is located from the surface of the rails at a distance greater than the radius of the support rollers and less than the distance from the surface of the rails to the axes of the support rollers.

The carriage body profiles in the longitudinal vertical plane between the support and pushing rollers are described by curves with a radius of a circle equal to the radius of the axis of the wheelset (RF Patent No. 2046046).

The disadvantages of the known device include the impossibility of moving units of the rolling stock back and forth from anywhere in the way, as well as the lack of monitoring and control of the movement of the trolley.

Known shunting installation with pulling trolleys for wheelsets, designed for maneuvering and positioning self-propelled units of rolling stock type "Falcon" on straight and level sections of the track through the installation of external washing. The 2000/015 WESUMAT unit was developed by the German company Vollerf GmBh for Russian railways and is widely used in Russia. (Project: October Railway, St. Petersburg, Metallostroy II - Sokol, Functional Description. 12.07. 2000)

The shunting installation consists of a combined drive station, traction rope tension units, installation of a control cable drive and an alarm system, end cable rollers, guide cable rollers, a pulling cart for wheelsets, traction and control ropes, as well as a control system including electronic and electrical equipment ( motors, couplings, gearboxes, limit switches).

Shunting during the washing process occurs automatically. Limit shunt switches on both sides of the shunt path limit the travel of the pulling cart forward and backward. After the pulling trolley has reached one of these switches, it can only move in the opposite direction. The pulling trolley of the wheelset moves freely between the rails of the normal track along the separately laid auxiliary rails. The cart is attached on both sides to an endless (closed) reversible traction rope. With the help of four spring-loaded pairs of traction rollers, the pulling trolley moves or brakes the wagons behind the flanges of the wheel pairs, while the brakes of all the wagons moved must be released during shunting operations. In order to bring the traction rollers into working or non-working position in any position on the shunting path, a control link is mounted on the pulling trolley. By means of an axial cable system driven by a control cable drive, the traction rollers are squeezed outward into the operating position by the control link. The backstage stroke, coaxial to the rail track, is approximately 240 mm, the traction roller stroke is approximately 65 mm. When pulling the traction rollers, the buffer springs mounted on the pulling carriage accelerate the unwinding of the control cable from its drive.

The pulling trolley for wheelsets consists of:

the base frame, in which eight supporting wheels are installed, an adjustable link connected to the spring is movably placed inside the frame; on an adjustable curtain mounted arretir with a running roller, a clamping spindle and a buffer

spring; on the base frame there are four swing arms connected by a spring-loaded linkage mechanism with push beams.

The adjustable link is guided by a control cable drawn through pulleys mounted on the link and on the base frame.

On the stop beams there is one pair of pusher rollers (dual pusher rollers) mounted on tapered roller bearings. On the other hand, there are one running roller driven when moving the wings.

When approaching the wheel flange, the traction rollers rise to the working position and are fixed by the support arm. The car is pushed or braked within the shunting path.

If the car is in the required position, the traction rollers are retracted again. In this case, the support arms are unlocked and the rollers again fall into a horizontal position. Before cleaning, the running brake is slightly disinhibited to achieve easier cleaning of the traction rollers, with the aid of the possibly overlapping flanges of the wagon wheel. Moving the pulling cart is carried out by one winch with a reverse drive, a brake and three drums: one common (traction) and two others to move the cart forward and backward. This drive is similar to that described in the invention by ed. testimonial. No. 1439003.

The main disadvantages of the known technical solutions identified during operation of the installation are in the design of the mechanism that controls the traction rollers. The design of the wings with a massive counterweight, controlled by an additional axial rope with the help of additional pulleys, and cable tension control units by means of a torsion spring, a cage with an additional running roller and clamping device, etc. It is relatively complex and does not provide the required reliability during operation due to the difficulty of ensuring the tension of ropes of different diameters. Reversible winch drive with three reels complicates the reliability of the movement of the truck at the time of switching the direction of its movement and complicates the control of the tension of the rope.

The closest technical solution to the claimed utility model is a device for moving and positioning railway cars, protected by RF patent No. 58080 and published November 10, 2006.

A device for moving railway cars contains a pulling trolley with wheelsets, which freely moves between the rails of the normal track along separately laid auxiliary rails, connected from two

sides to the traction cable drive, inside the frame of the pulling trolley there is a mechanism that controls the pushers rigidly connected to the swing arms and twin pairs of traction rollers mounted on both sides of the frame of the trolley with the possibility of coupling with the flange of the wheel pair of a railway carriage, a control system for the position and movement of the pulling trolleys, moreover, the mechanism controlling the traction rollers is made in the form of a copier, consisting of four profile surfaces connected with the possibility of moving along additional m guiding by means of an additional roller unit containing several spring-loaded pairs of rollers, including those equipped with hooks that contact the stops during movement of the copier, on which limit switches are located, which are sensors of the control system for controlling the movement of the pulling trolley.

As a result of the operation of this device, it turned out that the pusher control unit made in the form of a copier is structurally complex and massive, which reduces the reliability of the device.

In addition, there are a number of disadvantages affecting the operational efficiency of the device, in particular, there is no connection between the rope tension control unit and the control system for controlling the movement of the pulling trolley.

The technical task of the proposed utility model is to increase the operational reliability of the device for moving railway cars by simplifying the design of the unit that controls the operation of the traction rollers, changing the control system for the movement of the pulling cart and the position of the railway car.

The technical result is achieved due to the fact that in the known device for moving and positioning railway cars, containing a pulling trolley with wheel pairs, which freely moves between normal track rails along separately laid auxiliary rails, forward and backward by means of separate ropes located on the traction winch and return winch equipped with autonomous electromechanical drive, inside the frame of the pulling trolley there is a mechanism that controls pairs of traction (pushing) roles s installed on both sides of the bogie frame with the ability to ensure adhesion to the rim wheelsets of railway wagon, the position of the train control system and motion pulling carts amended and supplemented as follows:

- rope tension sensors are additionally introduced into it, connected to the control and monitoring system for the movement of the pulling trolley;

- position sensor of the wheelset of the car, to monitor the initial position of the wheelset of the railway carriage;

- the mechanism controlling the pushing rollers is made in the form of balancers located on the front and rear surfaces of the trolley, each of which is paired with each other through a shaft equipped with levers that translate the pushing rollers from the transport state to the working one and vice versa;

In addition, in the control system for the position of the pulling trolley, the following are introduced: brake, stop and emergency sensors installed in the zone of maximum permissible movement of the pulling trolley.

The introduction of sensors for monitoring the tension of the cable ropes of the cable drive allows you to reduce the tension when the tension is exceeded by turning on the sensor by turning on the reverse of the drive of the corresponding winch for a certain time (1-2 turns) or stopping the drive.

The introduction of the sensor, fixing the position of the wheelset of the railway car, allows you to stop it in the area in which the pulling trolley should begin moving the railway car during washing or during repair.

The presence of brake, stop sensors of the position of the pulling cart limits the permissible zone of movement of the pulling cart.

The emergency sensor signals the state when the pulling trolley has exceeded the limits of its permissible movement zone, therefore, it is necessary to determine the cause of the violation of the pulling trolley's movement.

The proposed design of the node controlling the pushing rollers is much simpler than the known device, because does not contain complex structural elements, which increases the reliability of its operation.

The design of the device for moving railway cars is shown in figures 1-6.

The figure 1 presents the layout of the equipment included in the device.

It shows: the main railway track 1 (for the movement of the train; auxiliary track 2 (for the movement of the pulling trolley); traction winch 3 (for moving the train forward); return winch 4 (for moving the trolley back); pulling trolley 5, rope tension units (ropes) 6, designed to change the direction of the cable laying on the way from the winch to the carriage, sensor 7 of the car’s wheel pair, sensors of the control system for the position of the pulling carriage 8, 9, 13, respectively, brake, stop and emergency, supports 10 for ropes located in the track and n and winches

designed to prevent them from touching the supporting surface; ropes 11, 12 of different diameters connected to opposite ends of the pulling trolley.

Figure 2 shows the design of the pulling cart 5.

The trolley consists of: a frame 14, wheel pairs 15, balancers 16, connected in pairs by shafts 17, equipped with swing arms 18, traction rollers 19 fixed to the balancers, nodes 20 for attaching ropes 11 and 12.

This figure shows the operating position of the balancers 16, i.e. at the moment of contact of the traction rollers 19 with the wheelset of a railway carriage.

In the transport position of the trolley, the balancers 16 with the traction rollers 19 are located in the grooves 21 of the pulling trolley 5.

Figure 3 shows the design of the mechanism for controlling the tension of the cables 11 and 12 of the cable drive. It includes: a support 22 for two movable pulleys 23 and a stationary pulley 24, an arm 25 on which a measuring device and a rope tension sensor 26 are installed, balancing strips 27 are upper and 28 lower, a rod 29 is in contact with a tension sensor and pulleys.

Figure 4 shows the design of the installation of the wheel pair 7 sensor. The inductive sensor is mounted on the bracket 30 at a height corresponding to its triggering when passing the wheel pair of the car.

Figure 5 shows the installation of brake 8, stop 9 sensors that control the movement of the pulling cart 5. The sensors are mounted on the respective brackets 31, 32, and the bracket 33 is attached to the frame of the pulling cart 5.

Figure 6 shows the installation design of the emergency sensor 13. It shows the bracket 34 strap 35, which is attached to the sensor 7 and the mounting pin 36.

The control system for the device for moving and positioning railway cars is mounted on a separate panel and includes electrical, electronic elements and measuring and control devices, as well as a mnemonic diagram of the device. Their scheme is not given, because may vary depending on actual conditions and customer requirements.

The design of the traction and return winches is almost the same (they differ only in the brand of equipment) and are made traditionally. They contain an electromechanical drive, which includes an induction motor with a normally closed disc brake and a cylindrical gearbox. An elastic coupling through a gear transmission provides torque transmission from the drive to the drum, on which a cable (rope) of the corresponding diameter is wound.

Cart 5 interacts directly with the composition. It moves along the auxiliary rails 2, laid between the main rails 1. The height of the trolley allows it to freely pass under the train. In forward motion, the trolley is driven by a cable wound around the drum of the traction winch 3, and in reverse, the cable of the return winch 4.

A device for moving railway cars works as follows (for example, washing the composition). The work of moving the composition during washing is divided into 6 (six) passes, which are performed sequentially one after another. Each pass represents the process of moving the cart, controlled and controlled by the program. The number of the current passage is shown to the operator in the automatic mode screen. All work of the main equipment is shown on the mnemonic diagram.

When moving the trolley can be in one of two states: working or transport. Working condition - the trolley moves the train. Transport condition - the trolley without contact with the train moves behind the next portion of wagons under the train.

By means of a locomotive, the composition is fed into the washing zone. When the wheelset of the last car is reached, the wheel pair position sensor 7 is activated, mounted on the bracket 30 (Fig. 4) at the height of the wheelset. When triggered, it will give a signal to the control system to stop the train, which stops at a certain place in the washing zone.

After the driver confirms that the train is ready for washing, the operator presses the appropriate key and the first pass, etc. begins.

Before the start of each pass, a check is made for possible emergency situations. The execution of any passage can be suspended at the initiative of the operator, or by a signal from the car wash complex (VMK). It is possible to switch from automatic mode to manual mode.

The pulling trolley 5 is located at the end of the washing zone. After installing the car and checking the readiness, the operator issues a “FORWARD” command. This command supplies power (the brakes are turned off, the clutch closes, the winch 4 return motor is turned on to move forward). The balancers 16 with traction rollers 19 are in the grooves 21 of the trolley. This is the transport mode for moving the cart.

When the trolley reaches the brake sensor 8, the bracket 33 closes it and a corresponding command is issued to the winch drive by the control system, and when the trolley reaches the stop sensor 9, a stop signal for the winch drive is issued.

At the beginning of the direct course, the traction trolley 5 should be located behind the wheelset of the car, which must be washed. After stopping the pulling trolley, the worker by means of swing levers 18 puts the balancers with the traction rollers 19 into contact with the wheelset and ensures their normal contact.

Then the operator starts washing the cars. Cars with a certain speed move through the corresponding zones: washing, washing, drying, degassing, by means of the fact that the pulling trolley 5 by the traction winch 3, the drive of which is turned on, winds the rope 11 through the pulleys 23 on the drum. At the same time, the tension of the rope is controlled by the tension unit 6, which includes a fixed pulley 24 in contact with the rod 29, acting on the rope tension sensor 26, which is located on the bracket 25. When the sensor 26 is triggered, a signal is sent to the control system for moving the pulling carriage to disable the corresponding winch drive which is involved at this moment. When the pulling truck reaches the location of the brake sensor 8 located on the bracket 32, the bracket 33 closes the sensor 8 and it gives a braking command to the control system, and when the bracket 33 reaches the sensor 9, a command is issued to turn off the drive of the traction truck.

If the pulling trolley does not stop, but continues to move the cars further, then when the emergency sensor 13 is activated, the control system for moving the pulling trolley stops the drive of the corresponding winch.

If everything is normal, then when the stop sensor is reached, the trolley stops, and the worker transfers the balancers to the transport state using levers 18.

The process is then repeated. The return trolley moves to the next carriage in the transport position. Washed wagons by locomotive moves along the main path, sequentially hooking the next washed wagons. When all the cars are ready, the train goes to the depot.

The proposed utility model has several advantages compared to well-known technical solutions:

- reliability in operation, as the mechanism controlling the pushing rollers is structurally more reliable than previously used;

- a system for monitoring the position of the pulling trolley and the working bodies of the device eliminates emergency situations;

- the introduction of a wheel pair sensor made it possible to install cars before washing in a specific place in the washing zone.

The introduction of brake, stop and emergency sensors for the position of the pulling trolley eliminates emergency situations.

A new installation project has been completed and new units are being manufactured.

The implementation of the device will be implemented during 2008.

Claims (2)

1. A device for moving and positioning railway cars, comprising a pulling trolley with wheelsets that freely moves between normal gauge rails along separately laid auxiliary rails, back and forth by means of separate ropes placed on the traction winch and return winch, equipped with an autonomous electromechanical drive, inside the frame of the pulling trolley there is a mechanism controlling the pairs of pushing rollers mounted on both sides of the frame of the trolley with the possibility of clutch with wheel sets of a railway carriage, a control system for the position and movement of the pulling trolley, characterized in that it additionally incorporates rope tension sensors and an initial position sensor for the wheel pair of the railway carriage, and the mechanism controlling the pushing rollers is made in the form of balancers pairwise connected shafts equipped with levers by means of which the pushing rollers are brought into the working or transport position. 2. The device according to claim 1, characterized in that the control system for the position of the pulling cart contains brake, stop and emergency sensors installed at the beginning and end of the zone of movement of the pulling cart.