RU154770U1 - CAR CARRIER FOR MOVING RAILWAY CARS - Google Patents

Abstract

A railroad car pusher comprising a railway platform with automatic couplings mounted on biaxial railway carts and equipped with a body consisting of an engine room and ballast compartments, a control unit and a power drive installed in the engine room, consisting of an electric motor connected to the control unit and to the drive gearbox, while the axles of the driving wheelsets are equipped with axial gears kinematically connected by a cardan drive with a gear drive, characterized in that the unit The board includes a controller, a vector frequency converter connected to the controller and the electric motor, and a brake chopper connected to the frequency converter, while the plunger is additionally equipped with an automatic electro-pneumatic brake connected via brake linkage with brake pads mounted on all axles of the wheelsets, and the controller of the control unit, the rheostatic brake installed in the engine room and including the block of brake resistors located on the roof the engine room and connected to the brake chopper of the control unit, an automatic pneumatic control unit for the composition brakes installed in the engine room and connected to the brakes of the moving composition and to the controller of the control unit, a sand supply unit comprising eight sand bunkers located on carts and connected to the controller the control unit, proximity sensors limiting its working area, installed on the platform and connected to the controller of the control unit, proximity sensors

Description

This utility model relates to the field of industrial railway transport, namely to a special railway traction rolling stock of 1520 mm gauge and can be used on internal railway tracks of enterprises of various industries, for example, for moving railway cars along the front of loading (unloading) on the enterprise’s dead end track as in a continuous way, and in a carriage, as well as for pushing cars into the car dumper or defrosting device.

A patent is known for the invention “CAR TROLLEY FOR MOVING RAILWAY CARS (OPTIONS) AND PLATFORM OF CAR TROLLEY FOR MOVING RAILWAY CARS” [RF 2477694, publ. 03/20/2013], from the description of which a car pusher for moving railway cars is known, comprising a railway platform with automatic couplings mounted on biaxial railway carts, a power drive mounted on the platform and consisting of an electric motor connected to the drive gearbox. At the same time, the axles of the drive wheels are equipped with axial gears, the drive gearbox is kinematically coupled to the axle gears of the drive wheels and with an electro-hydraulic brake mounted on its high-speed shaft, the platform is equipped with a body consisting of an engine room and ballast compartments. The pusher is equipped with a distribution control station, a trolley power supply system, trip blocking switches installed on the platform, "skis" installed on the railway, and track cleaners. The car pusher is controlled from the remote control of the car pusher.

This well-known technical solution is selected as a prototype, as it has the largest number of essential features that match the essential features of the claimed utility model.

However, this prototype has a significant drawback, namely, low safety when using it, due to the large braking distance due to the supply of the car pusher with only one brake - electro-hydraulic, installed on the drive gear shaft, and a small degree of control of its position in the working area and the presence of foreign objects on the tracks, since its working area is limited only with the help of “skis” and travel switches. It should be noted that when applying an electro-hydraulic brake, brake pressure is not monitored, which can lead to wheel use during braking or to an increase in stopping distance if brake pressure is insufficient.

The objective of this utility model is to create a new car pusher for moving railway cars with the following technical result: increasing the safety of its use by reducing its stopping distance and by ensuring the possibility of timely response when it leaves the working area or when foreign objects are on the tracks.

The problem is solved due to the fact that in the well-known pusher of railway cars containing a railway platform with automatic couplings mounted on biaxial railway carts and equipped with a body consisting of an engine room and ballast compartments, a control unit and a power drive installed in the engine room, consisting of an electric motor associated with the control unit and with the drive gear, while the axles of the drive wheelsets are equipped with axial gears kinematically connected by cardan a driver with a drive reducer, according to this utility model, the control unit includes a controller, a vector frequency converter connected to the controller and the electric motor, and a brake chopper connected to the frequency converter, the plunger additionally equipped with an automatic electro-pneumatic brake connected via a brake lever transmission with brake pads installed on all axles of the wheelsets, and with the controller of the control unit, rheostatic brake installed in the engine dividing and including a block of brake resistors located on the roof of the engine room and connected to the brake chopper of the control unit, an automatic pneumatic brake control unit for composition brackets installed in the engine room and connected to the brakes of the rolling stock and to the controller of the control unit, sand supply unit including eight sand bunkers located on carts and connected to the controller of the control unit, proximity sensors limiting its working area, installed on p atforme and connected to the controller control unit, proximity sensors determine its location on ways mounted on the platform and connected to the controller control unit, proximity sensors detect obstacles on ways mounted on the platform and connected to the controller control unit.

Thus, this claimed technical solution, with its whole set of essential features, allows to increase safety when using a car pusher by reducing its braking distance, thanks to its additional equipment with an electro-pneumatic and rheostatic brake, as well as an automatic pneumatic brake block for controlling the composition brakes and sand supply unit. At the same time, equipping the car pusher with non-contact sensors restricting its working area, determining its location on the tracks and detecting obstacles on the tracks provides a timely response when it leaves the working area or when foreign objects are on the tracks, which, in turn, also increases safety during its use. At the same time, equipping the control unit with a controller, a vector frequency converter and a brake chopper ensures the operability of these sensors and brake blocks.

The essence of the claimed utility model and the possibility of its practical implementation is illustrated by the description and drawings below.

FIG. 1 - General view of the pusher.

FIG. 2 - View of the carriage of the pusher.

The wagon pusher of railway cars contains (Fig. 1, 2) a railway platform 1 with automatic couplings 2 mounted on biaxial railway trolleys 3 and equipped with a body consisting of an engine room 4 and two ballast compartments 5. In the engine room 4, a control unit 6 and a power drive are installed consisting of an electric motor 7 connected to the control unit 6 and to the driving gear 8. The axles of the driving wheel pairs 9 of the bogies 3 are equipped with axial gears 10 kinematically connected by a cardan gear (shafts) 11 to the driving gear 8 m.

A three-phase asynchronous electric motor 7 with a squirrel-cage rotor is installed on the car push. The electric motor 7 is designed to convert electrical energy into mechanical energy and transfer it to the high-speed shaft of the gear 8. The electric motor 7 is mounted on the platform 1 on two channel beams (not shown) and the floor sheet of the platform 1. From the electric motor 7 through a gear coupling (not shown shown) rotation is transmitted to the drive gearbox 8, and from it through the cardan drive 11 and axial gearboxes 10 to all four axles of the wheel pairs 9 of the car pusher. The reactive moment of the axial gears 10 by rods with shock absorbers is transmitted to the pivot beam (not shown) of the truck 3.

The control unit 6 is located in a metal cabinet installed in the engine room 4 and includes a controller (not shown in the drawing), a vector frequency converter (not shown in the drawing) for controlling the electric motor in traction and braking mode, connected to the controller (in the drawing not shown) and an electric motor 7, and a brake chopper (not shown in the drawing) connected to a frequency converter (not shown in the drawing).

The car pusher is equipped with an automatic electro-pneumatic brake (not shown in the drawing), a rheostatic brake, an automatic pneumatic brake block (not shown in the drawing) for controlling the composition brakes and a sand supply unit. Due to this, the braking efficiency is increased, i.e. the braking distance is reduced and thereby the safety of using a car pusher is increased.

The electro-pneumatic brake (Fig. 2) is connected through a brake linkage 12 with brake pads 13 mounted on all axles of the wheelsets 9 of the bogies 3 and with the controller of the control unit 6. Pressing the pads 13 is one-way. On both carts 3, two brake cylinders 14 are installed, each of which drives the lever gear 12 of the brake on one side of the cart 3. During braking, air is supplied to the brake cylinders 14 and the brake force is transmitted to the brake pads 13 through the brake link gear 12 pressed against the wheelsets 9. The braking force is distributed on all axles of the car pusher.

The rheostat brake is installed in the engine room 4 and includes a brake resistor unit 15 located on the roof of the engine room 4 and connected to the brake chopper (not shown) of the control unit 6. The electric power generated by the traction motor 7 in the rheostatic braking mode is extinguished in the block 15 of the braking resistors and leads to a complete stop of the car pusher.

The car pusher can additionally be equipped with a parking brake (not shown in the drawing), designed to provide the car pusher with brakes (against leaving) during work during repair and maintenance and prolonged sludge.

In the engine room 4 of the car pusher, a pneumatic automatic block (not shown) of the train brake control is installed, which is connected to the brakes of the train and to the controller of the control unit 6. This unit (not shown in the drawing) includes: a motor-compressor (not shown in the drawing), main reservoirs (not shown in the drawing) for a supply of compressed air, a valve (not shown in the drawing) for automatic control of the composition brakes, equipment (on drawing not shown) brake control composition. Thus, the safety of work is ensured, since it is possible to connect and control the brakes of the train, which reduces the braking distance, since when braking, all cars are braked, and not just the car pusher.

The sand supply unit is connected to the controller of the control unit 6 and includes eight sand bins 16 located on the bogies 3 and attached to the end beams 17 of the bogies 3, two electro-pneumatic valves (not shown) of sandboxes located in the engine room 4, eight nozzles 18, sand bins 16 mounted on the bottoms and a sand conduit 19. The sand supply is controlled by the control unit 6 in automatic mode by electro-pneumatic valves (not shown in the drawing), which, with the appropriate pressure ION (forward or backward) include a certain group of nozzles 18 (4 pcs.) under the sand feed wheel. The sand should be well-dried, free of dust and lumps. The amount of sand supplied under the wheels is regulated by sandbox nozzles: 0.7 - 1.2 kg / min for medium wheelsets and 0.7 - 0.8 kg / min for extreme ones. The presence of the sand supply unit reduces the stopping distance of the car pusher, increasing the safety of its use.

The car pusher is equipped with contactless sensors 20 for limiting its working area connected to the controller (not shown) of the control unit 6, proximity sensors 21 for determining its location on the tracks and proximity sensors 22 for detecting obstacles on the tracks. In this case, the location sensors 21 and the sensors 20 of the working area restriction are installed on the sides of the platform 1, and the obstacle detection sensors 22 are installed from the ends of the platform 1, for example, using supports 23. Moreover, the location sensors 21 are configured to interact with marks (in the drawing not shown) installed on the track supports (not shown in the drawing), and the sensors 20 of the working area restriction are configured to interact with reflectors (not shown in the drawing) also installed on the track pores (not shown in the drawing). As the sensors 20, 21, 22 can be applied optical, ultrasonic and magnetic. Thanks to these sensors and their control by the controller (not shown) of the control unit 6, it is possible to respond in a timely manner when the car pusher leaves the working area or when foreign objects are on the tracks, which at the same time as reducing the braking distance also increases the safety of its use.

Using a programmable controller (not shown) of the control unit 6, the entire operation of the car pusher is controlled. It can also be equipped with a graphic display (not shown in the drawing), which displays all the main parameters of the work (speed, direction of movement, readiness for work, etc.), as well as possible malfunctions.

The control unit 6 may also include circuit breakers (not shown) of power circuits, a frequency converter and control and lighting circuits, an input filter (not shown), a relay (phase not shown), phase monitoring and other electrical fittings.

The use of a vector frequency converter (not shown in the drawing) controlled by a controller (not shown in the drawing) allows the pusher to be equipped with a rheostatic brake and an automatically controlled electro-pneumatic brake (not shown in the drawing), which allows the pusher to operate in a wide range of precise speed control (t .e. regardless of the weight of the train, the ability to adjust the exact speed and its gradual increase / decrease, to the specified parameters). This allows loading wagons with bulk cargoes in motion, without stopping the wagon at the loading place, which significantly reduces loading time and increases the safety of its use.

Moreover, due to the connection of the control unit 6 with the sensors 20 to limit the working area, it is possible to automatically reduce the speed when approaching the marks located on poles (supports) at the end of the working area, the connection to the sensors 21 for determining the location allows the output image of the location of the pusher on the controller display and the connection with the sensors 22 detect obstacles on the tracks provides the ability to automatically reduce the speed and stop the pusher when approaching an obstacle Vey. This greatly increases the safety of the car pusher.

The controller (not shown) of the control unit 6 is remotely connected to the controller of the control panel (not shown) of the operator’s control (car dumper driver) located outside the car pusher and designed for remote automatic control of units and units of the car pusher, power supply of control circuits, lighting and signaling, protection of equipment from overloads. For this, the control unit 6 and the remote control (not shown) of the operator's control are equipped with industrial modems (not shown) based on the IEEE 802.11 (WI-FI) standard.

The control panel (not shown) of the operator control includes: buttons (not shown) for the car pusher, lamps (not shown) for power and movement control, a controller (not shown) with a graphic display (not shown) shown) to display information about the operation of the equipment, malfunctions, speed and direction of movement, temperature characteristics of the equipment and air in the working area, toggle switch (not shown in the drawing) emergency power off, unit (not shown in the drawing) p soap has data wirelessly. Using the control unit 6 and the operator’s control panel, it is possible to perform the following functions: providing a discrete change in speed in any direction of travel from 0 km / h to design speed; control of the “extreme positions” of the car pusher on the tracks using non-contact sensors; remote control; engine and wheel braking; motor protection by means of a frequency regulator; temperature control of the engine room of the car pusher; street temperature control; temperature control in the control unit and ventilation; heating and ventilation of the engine room of the car pusher; control of lighting devices, side lights, searchlights; light and sound signal management; control of the opening of the doors of the engine room; speed control; issue of diagnostics and all measured parameters to the dispatcher screen; the ability to control from the engine room; control of engine life; issuing warnings to the operator about a particular service; logging of accidents and warnings; car pusher stop in case of emergency.

For uninterrupted communication between the operator’s control panel and control unit 6, these devices are equipped with uninterruptible power supplies (not shown in the drawing) to ensure the operation of control and communication devices, as well as lighting and pusher control devices in emergency situations.

Platform 1 is a steel structure that accepts longitudinal traction, shock and compressive, as well as vertical loads from the mass of equipment installed on it and suspended from below. On the platform 1, automatic couplings 2 are installed, the nodes and parts of which have different purposes, for example, for coupling units of rolling stock, as well as transferring traction and shock loads. The automatic coupler 2 is equipped with an absorbing device that softens bumps and jerks, protecting the rolling stock from harmful dynamic influences. Engine room 4 and two ballast compartments 5 of the body are welded to the platform 1.

The body is made bonnet type. Inside, the body is equipped with lighting lamps (not shown in the drawing), an automatic ventilation and heating system of the engine room 4 (not shown in the drawing), fire extinguishers (not shown in the drawing) and other devices ensuring the proper operation of the car pusher. Outside the body of the engine room 4 on the side wall are handrails 24 to facilitate access to the roof. In the doorways of the side walls of the engine room body there are doors 25, removable hatches are installed on the roof (not shown in the drawing). Doors and hatches are sealed with rubber gaskets. In the engine room 4 air from the atmosphere enters through the strainers 26, positioned on both sides of the side walls of the body and an opening for sampling automatic ventilation and heating system of the air due to the presence of which is extended operating range vagonotolkatelya from - 45 to + 45 ^{° C} and has the ability to maintain an automatically set temperature (it can also be combined with air conditioning). Body doors, hatches, walls and roof are soundproofed.

Ballast compartments 5 are designed to increase the grip mass of the car pusher (by filling with recommended material), to accommodate the dismantled equipment and structural elements at the time of transportation. They have a removable roof and stiffeners. The difference in weight of the filled material in the ballast compartments should not exceed 6%.

The car pusher is equipped with sound and light alarms (not shown in the drawing) and is equipped with a trolley power supply system 27 and track cleaners 28. To organize power supply, a trolley system, open or closed, or a cable drum with a spring or electric drive mounted on platform 1 of the car pusher is used. Power is supplied by alternating current 380 V., 3 phases, 50 Hz.

The principle of operation of the car pusher is to transmit the torque of the traction motor 7 through a kinematic chain consisting of a cylindrical (driving) gear 8, cardan shafts 11 and axial gears 10 to the wheel pairs 9 of the car pusher in the traction and stop mode of the car pusher, in braking mode. Remote control of the drive is made via WI-FI channel from the operator's control panel.

To start moving in the right direction and automatically release the brakes of the car pusher, you need to press the speed increase button in the right direction on the remote control once, for a short time. The speed as a percentage of the maximum is shown on the controller screen of the operator’s control panel. Further, in order to increase or decrease the speed of the car pusher, it is necessary, once, for a short time, to press the button to increase or decrease the speed in the direction in which the car pusher is moving. The direction of movement is indicated by a green indicator light. When you press the speed reduction button, the car pusher will brake the engine.

To stop the car pusher, press the STOP button on the operator’s control panel. The speed on the controller screen will be indicated by 000% and the red “STOP” lamp will light up. In this case, the control unit gives an engine braking command and engages the air brake. Further movement is again carried out in the selected direction by pressing the buttons to increase (decrease) the speed. The speed reduction button can reduce the speed of the car pusher by only 5%. This is the lowest possible speed. To stop the car pusher, press the STOP button.

For an emergency stop of the car pusher or the need for emergency removal of voltage from the trolls, an emergency switch is located on the operator panel. To bring it into action, it is necessary to lift the toggle-switch cover and turn it on for a short time.

If the pneumatic brake fails (for example, the pressure sensor in the brake system has tripped, i.e. the pressure in the compressor reservoir has become less than 5 atm.), The car pusher cannot be started. An alarm lamp is lit on the operator’s control panel, a compressor failure message is displayed on the controller. The same message can be displayed at start-up after a long period without power supply, but it will disappear as soon as the compressor creates the necessary pressure in the system.

When a large object appears on the tracks at a short distance in front of the car pusher, the track obstruction sensor detects and the controller of the control unit stops the car pusher.

When the pusher reaches the border of the traffic area, i.e. if the sensor limits its working area, the controller of the control unit also stops the pusher. In this case, further movement is possible only in the opposite direction.

The temperature in the engine room is automatically adjusted. Its value is changed in the controller menu of the control unit in the engine room. The default value is +5 degrees in winter. In the summer, air is taken outside and the engine room is automatically ventilated. When the control unit overheats, the fan turns on, supplying air to it from the engine room.

In emergency cases, for example, if the operator control panel malfunctions or communication with the control unit fails, temporary control of the car pusher directly from the controller of the control unit in the engine room of the car pusher is possible. The right arrow and left arrow buttons of the controller in this case will allow you to select the direction of movement of the car pusher, and the up arrow and down arrow buttons of the controller will allow you to increase or decrease the speed, respectively. Stop is carried out by the STOP button of the controller.

Thus, the technical result of the claimed utility model is achieved, namely, increasing the safety of its use by reducing its stopping distance and by ensuring the possibility of timely response when it leaves the working area or when foreign objects are on the tracks.

Claims (1)

A railcar pusher containing a railway platform with automatic couplings mounted on biaxial railway carts and equipped with a body consisting of an engine room and ballast compartments, a control unit and a power drive installed in the engine room, consisting of an electric motor connected to the control unit and to the drive gearbox, while the axles of the driving wheelsets are equipped with axial gears kinematically connected by a cardan drive with a gear drive, characterized in that the unit The board includes a controller, a vector frequency converter connected to the controller and the electric motor, and a brake chopper connected to the frequency converter, while the plunger is additionally equipped with an automatic electro-pneumatic brake connected via brake linkage with brake pads mounted on all axles of the wheelsets, and the controller of the control unit, the rheostatic brake installed in the engine room and including the block of brake resistors located on the roof the engine room and connected to the brake chopper of the control unit, an automatic pneumatic control unit for the composition brakes installed in the engine room and connected to the brakes of the moving composition and to the controller of the control unit, a sand supply unit comprising eight sand bunkers located on carts and connected to the controller the control unit, proximity sensors limiting its working area, installed on the platform and connected to the controller of the control unit, proximity sensors sensors to determine its location on tracks installed on the platform and connected to the controller of the control unit, proximity sensors for detecting obstacles on the tracks installed on the platform and connected to the controller of the control unit.

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