RU58080U1 - DEVICE FOR MOVING RAILWAY CARS - Google Patents

Abstract

The utility model relates to means of maneuvering 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 to move along the guides 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 of the monitoring system and control the movement of the trolley;

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. Implementation of the device will be carried out during 2006. P. f.5, Fig. four

Description

The utility model relates to means of maneuvering 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.

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 by means of a satellite trolley. The movement mechanism is made in the form of a drive endless chain gear equipped with pushers for interacting with the transverse beams of the satellite trolley placed along the satellite trolley with a step corresponding to the pitch of the pushers of the chain gear, each of the two chain drive chain sprockets being rigidly connected to the drive sprocket which, for their alternate inclusion in operation when the drive is reversed, are connected by a chain drive with sprockets mounted between the traction and drive sprocket blocks a block of drive sprockets freely mounted on the drive sleeve, each drive sprocket of the block provided with diametrically arranged crackers for interacting with diametrically located crackers of the sleeve, and each pusher is made in the form of a carriage, two cheeks attached to the chain symmetrically to its axis and moving along the guides rollers, two rollers on each side of the chain along the axes of its links so that the distance between the rollers of each pair of rollers on each side of the chain corresponds to the chain pitch (RF Patent 2207425).

The main disadvantage of this device is the need for a second railway line, which reduces the scope of the known device and low reliability of the chain transmission.

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 inability to move units of the rolling stock back and forth from any point on the path, as well as the lack of monitoring and control of the movement of the trolley.

The closest in technical essence to the proposed utility model is a shunting unit with pulling trolleys for wheelsets, designed for maneuvering and positioning self-propelled rolling stock units of the Sokol type on straight and level sections of the track through an external washing unit. 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. 07/12/2000)

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 reached one of these switches,

she 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 wings, an arrester with a running roller, a clamping spindle and a buffer spring is installed; 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. For contactless actuation of workers and safety

limit switch pulling cart is equipped with a limit switch bus. The length of this tire corresponds to the length of the pulling trolley.

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 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 to move along the guides by means of several spring-loaded pairs of rollers, some of which are equipped with hooks in contact with the stops on which the end

switches that are sensors of the control system and control the movement of the trolley;

- between the auxiliary rails mounted rear, intermediate and front stops contacting with hook rollers when moving the copier along the guides;

Besides:

- the rope drive of the trolley includes a traction winch and a return winch equipped with autonomous drives;

- the front stop is equipped with a pneumatic cylinder and its rod position sensors;

- the number of intermediate stops depends on the type of rolling stock.

The design of the device for moving railway cars is shown in Figures 1-4.

Figure 1 shows the layout of the equipment included in the device.

It shows: the main railway 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, cable tension units 6, designed to change the direction of the cable laying on the way from the winch to the truck, the front, intermediate and rear stops, respectively 7, 8, 9, on which limit switches are installed, which are sensors for the control system of the position of the pulling cart; stands 10, rednaznachennye to prevent the cables touch the support surface; ropes 11, 12 of different diameter connected with opposite ends of the pulling carriage.

In fig. 2 shows the design of the pulling cart 5.

The cart consists of: a frame 13, wheelsets 14, a copier 15, consisting of four connected profile surfaces, guides 16, pushers 17 connected to the swing arms 18 and spring-loaded with a mechanism 19, equipped with traction rollers 20, a roller system for moving the copier 15 along the guides 16 including: rollers with flange 21, smooth rollers 22, springs 23 and hook rollers 24 and 25, characterized by the design of the hooks.

In fig. 3 shows the design of an intermediate stop designed to translate the trolley to its working position. The emphasis is mounted on the base 26 and contains: a lever 27, a limit switch 28, which is a position sensor of the trolley 5, a stand 29, a screed 30, installed between the levers 27, which are attached to the base 26 using brackets 31.

Figure 4 shows the design of the front stop, designed to translate the trolley 5 into the transport position and the restrictions on the forward movement of the trolley.

It is placed on the base 32, on which are installed: racks 33 with a limit switch 34. On the base there is a pneumatic cylinder 35, the rod of which is connected to the carriage 36, moved along the guides 37, sensors 38, 39 of the end positions of the rod of the pneumatic cylinder 35; levers 40, mounted on the base with brackets 41 and couplers 42. On the base 32 are also installed stands for the cable 43, 44 and limit switch 45, which is a sensor of the position of the levers 40.

The design of the remaining nodes of the device for moving railway cars (rear stop, blocks and supports) is simple and obvious, therefore it is not given, because will be clear from the description of the operation of the device.

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 clutch through a gear transmission provides torque transmission from the drive to the drum, on which a cable (rope) of the corresponding diameter is wound.

The cart 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, and in reverse, the cable of the return winch. The copier 15 can be rolled back and forth along the guides 16, and the rollers with flanges 21 roll along the upper ends of the guides, and the smooth rollers 22 are pressed along the lower ends of the guides 23, which are pressed against the guide springs 23. The lower ends of the guides 16 at the front and rear of the trolley have inclined surfaces, therefore, when the copier is in the extreme forward position, the rollers - hooks 25 are raised up, and the rollers - hooks 24 are lowered down, respectively, when the copier is in the extreme rear position, vice versa. The interaction of the rollers - hooks with stops will be described below. When the copier 15 is in its extreme forward position, the pushers 17 and levers 18 are pressed against the frame, the springs 19 are compressed. The compression force of the spring is transmitted from the profiled surfaces of the copier, and through them to the traction rollers 20, which are mounted on the pushers 17.

When moving the copier to its extreme rear position, the traction rollers 20 roll out on the surfaces of the copier, the springs 19 push the pushers 17 and the levers 18 to the sides. The levers 18 rollers that are mounted on the ends of the levers abut against

lateral surfaces of the main rails, limiting the position of the pushers 17 (the pushers cannot touch the rail). When the cart moves, these rollers roll along the side surfaces of the main rails. When the pushers and levers are tightened, the trolley freely rolls under the train (return stroke). With the pushers and levers extended, the trolley moves the train (forward stroke).

Consider the work of the stops intermediate and front.

For example, the trolley moves in the opposite direction and is in the transport position. The levers 18 and the pushers 17 are preloaded except 13, the copier 15 is in its frontmost position, the rollers - hooks 24 are lowered. When the trolley passes over the stop, the rollers - hooks 24 tilt the levers 27 on the axes of the brackets 31. As soon as the rollers - hooks 24 pass over the levers 27, the levers take their initial position. When the levers are tilted, the screed 30 deflects the lever of the sensor 28, the sensor is triggered, and the control system receives a signal about the passage of this particular stop (there may be several intermediate stops) and, if necessary, stops the carriage. The trolley starts moving forward (working stroke), the rollers - hooks 24 abut against the levers 27 and stop the copier 15 of the trolley 5 (the trolley itself continues to move), therefore, the copier 15 moves to the rear position. At the end of the stroke, the roller-hook 24 together with the roller 21 goes up and slips over the lever 27, at this point the copier is moved to the rear position and therefore the trolley is in the working position. Next is the movement of the composition.

The front stop is designed to translate the trolley into the transported position and limit the forward movement of the trolley. The trolley 5 moves in the forward direction and is in the working position. The levers 18 and the pushers 17 are extended, the copier 15 is in the extreme rear position, the rollers - hooks 24 are raised, and the rollers - hooks 23 are lowered. With the passage of the trolley 5 above the stop, the rollers-hooks 23 tilt the levers 40 on the axes of the brackets 41, as soon as the roller-hook 23 has passed over the lever 40, the lever takes its initial position. When the lever 40 is tilted, the screed 42 deflects the sensor lever 45, the sensor is triggered, and the control system receives a signal about the passage of the stop and stops the carriage. The pneumatic cylinder 35 retracts the rod, which pulls the carriage 36 with levers 40 along the guides 37. The levers capture the hook rollers 23 and move the trolley copy 15 forward. At the end of the stroke, the roller-hook 23 together with the roller 21 goes up and slips over the lever 40. At this point, the copier 15 is moved to the front position and, therefore, the trolley is in the transported position. About this in

the control system receives a signal from the sensor 45. Then the trolley returns, and the pneumatic cylinder 35 returns the carriage 36 to its original position. On the basis of the 32 stops, limit switches 38, 39 are also installed, which are sensors of the position of the rod of the pneumatic cylinder 35.

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 passage is a 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.

In the initial state of the trolley, the sensor for the initial position of the trolley (DNPT) is closed; in the final state, the sensor for the final position of the trolley (DKPT) is closed. If the sensor is closed, the icon corresponding to it flashes on the screen.

After the arrival of the next train to the sink, the operator enters the operating mode: automatic, type of train, number of cars in the train.

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 wrist.

The device includes a control system for the movement of the trolley, including electrical and electronic elements. The system operates according to commands received from sensors located on the respective stops.

The team "GO". This command supplies power (the brakes are turned off, the clutch closes, the traction winch motor is turned on to move forward). The command cannot be executed if the trolley is on the front stop.

At the beginning of the forward stroke, the traction carriage 5 is located behind the front carriage of one of the cars. The copier 15 is in its extreme forward position, the levers 18 and the pushers 17 are pressed against the frame 13. When the trolley begins to move, the copier 15 is translated

in the extreme rear position, the levers 18 and the pushers 17 extend. Having approached the rear wheelset of the wagon, the front levers come into contact with the flanges of the wheelset and are pressed against the frame, compressing the springs 19 and dragging the front pushers along, the traction car continues to move, the levers 18 slide along the side surfaces of the wheels of the wagon. When the levers pass the pair of wheels, they, together with the pushers 17, will extend into the working position, the pair of wheels will be between the pushers. Next, the rear pushers of the cart with rollers 20 abut against the flanges of the wheels of the car, the train starts to move. When the front pusher roller 20 contacts the car wheel flange, the pusher rotates around its axis so that the second pusher roller 20 also comes into contact with the wheel flange. Thus, the force from the traction winch through the cable, frame 13, pushers 17 and rollers 20 is transmitted to the composition. After the trolley stops at the end of the forward stroke, the copier 15 is moved to the forward position, the levers 18 and the pushers 17 are pressed against the frame 13, the pusher is rotated to its original position. Then the trolley returns to its original position or to one of the intermediate positions, if you want to move the composition to a distance less than the full stroke of the trolley. The movement of the copier 15 from one extreme position to another has been described above and occurs when the rollers interact with the hooks 23 and 24 with the stops installed along the trolley. The interaction of the trolley with the stops was also described above.

Simultaneously with the “FORWARD” command, a command is issued to the pneumatic cylinder 35 of the front stop - “STOCK FORWARD”. By this command, the rod of the pneumatic cylinder 35 extends forward and is held in this position until the “STOCK BACK” command is received. By this command, the rod of the pneumatic cylinder 35 is retracted and held in this position until the command is removed. The position of the stem is monitored by sensors 38, 39.

The composition is fed to the sink in such a way that the first carriage is above the trolley. When approaching the front surface of the first carriage to the washing portal, the “STOP FORWARD” command is issued. 10 seconds after issuing a command to stop the composition, the command "STOCK BACK" is issued. The rod of the pneumatic cylinder 35 is retracted (the lever 18 must be compressed) and held. A BACK command is issued and the trolley moves in the opposite direction. When it reaches the second car, the sensor is triggered and the “STOP BACK” command is issued. The return winch is operating on the return stroke: the engine is on, the engine brake is off, the electromagnetic gear clutch is open on the traction winch.

After washing the front surface of the first carriage, the “FORWARD” command is issued again, the trolley together with the train moves forward to the front stop,

which is triggered and issues a “STOP FORWARD” command to the control system. The process of moving the trolley forward is carried out as previously described. The stopping place of the truck at each step of moving the train depends on the number of cars in the train and the length of the cars and is determined in advance (based on the type of train). After each stop, the trolley again receives a “forward” command and the train moves one step.

At the last step of moving the train, when the back surface of the last car approaches the washing portal, the STOP FORWARD command is issued again while washing this surface. After the last step of moving the trolley, i.e. the end of the washing process, the truck on the command "BACK" returns to its original position, and the command "STOP BACK" is issued.

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

- reliability in operation, as the mechanism controlling the traction 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 use of a separate stand-alone drive for moving the trolley simplified control over its movement.

A new installation project has been completed and new units are being manufactured. The implementation of the device will be implemented during 2006.

Claims (5)

1. A device for moving railway cars, containing a pulling trolley with wheel pairs, which moves freely between normal gauge rails along separately laid auxiliary rails, connected on both sides to the traction cable drive, inside the frame of the pulling trolley there is a mechanism that controls spring-loaded pairs of pushers, rigidly connected to the swing arms and dual pairs of traction rollers mounted on both sides of the trolley frame with the possibility of coupling with the flange of the wheelset railway carriage, a control system for the position and movement of the pulling trolley, characterized in that the mechanism controlling the traction rollers is made in the form of a copier, consisting of four profile surfaces connected to move along additional guides by means of an additional roller unit containing several spring-loaded pairs of rollers including those equipped with hooks in contact with the movement of the copier with stops on which limit switches are located, which are sensors of the systems control and management of truck traffic. 2. The device according to claim 1, characterized in that the front, intermediate and rear stops are installed on the auxiliary path, and the number of intermediate stops depends on the type of composition. 3. The device according to claim 1, characterized in that the trolley is moved forward and backward by means of separate ropes located on the traction winch and return winch, equipped with an autonomous electromechanical drive. 4. The device according to claim 2, characterized in that the intermediate stop is installed on the base and contains a lever, a limit switch, which is a sensor for the position of the pulling trolley, a stand for the rope, a tie installed between the levers mounted on the base with brackets. 5. The device according to claim 2, characterized in that the front emphasis is placed on the base and contains racks with a limit switch, a carriage moved along the guides by the rod of the pneumatic cylinder, sensors of the end positions of the rod, levers mounted on the base with brackets and ties, and also stands for the rope and limit switch, which is a sensor of the position of the levers.