RU2265542C2 - Train emergency stop system - Google Patents

Abstract

FIELD: railway transport; traffic control.

SUBSTANCE: according to invention, bogie wheel drive electric motor is connected to contact wire. Control of electric motor of bogie wheel drive is provided from locomotive by high-frequency currents through high-voltage contact wire with automatically keeping preset distance from bogie to locomotive.

EFFECT: enlarged operating capabilities.

2 dwg

Description

This invention relates to rail with electric traction. In the prior art, this invention corresponds to the prior art railway. transport currently in use around the world. The analogues of the proposed emergency train stop system are patents:

SU No. 1524802 A3, B 61 L 23/24, 03/01/83 and

RU 2139214 C1, 12/30/97

The advantages of the invention are: any distance of the trolley from the locomotive, the absence of sensors along the entire roadway, ease of operation, low cost.

The essence of the proposed emergency train stop system is the presence of a locomotive rolling in front at a distance of about one kilometer of an autonomous trolley 2, not mechanically connected to it. For its movement, the trolley has an electric motor 3, fed through the control station 4 by means of a pantograph 5 from the contact wire 6. A high-frequency generator 7, driven from the wheels of the trolley 2 and electrically connected to the control station 4, is also installed on the trolley to control the speed of the trolley on the locomotive 1 the high-frequency generator 8, the electric motor 9 and the second half of the electromagnetic clutch 10 are seated on the same shaft. The first half of the clutch 10 is driven from the wheels of the locomotive. The high-frequency generator 8 is electrically connected to the connection device 11, which is connected to the pantograph of the locomotive 1. The electric motor 9 receives power from the low-voltage network of the locomotive through a switching device (not shown). When moving the train, first the locomotive 1 pushes the trolley 2 in front of him, then to install the trolley at the required distance from the locomotive, the driver disconnects the clutch 10 and simultaneously turns on the electric motor 9. The current frequency of the generator 8 increases and becomes greater than the frequency of the current of the generator 7. The equipment of station 4 compares the frequencies of the generators 7 and 8 and gives an impulse to turn on the electric motor 3 of the trolley. Trolley 2 develops a speed greater than the speed of locomotive 1, and goes forward. When the trolley reaches the required distance from the locomotive, the driver simultaneously turns off the electric motor 9 and turns on the electromagnetic clutch 10. The system is adjusted so that when the speeds of the locomotive and the trolley are equal and, therefore, the frequencies of the currents of the generators 7 and 8 are equal, the trolley will move at a speed equal to the speed of the locomotive . To approach the carriage to the locomotive, the clutch is switched off accordingly, the generator 8 reduces the rotational speed and the current frequency, and the control station equipment 4 reduces the rotational speed of the electric motor 3 of the carriage 2. An inertial circuit breaker similar to that used in the aforementioned RU patent is installed on the carriage 2, which acts on signal, or to the emergency braking system of the train during a continuous journey or a collision of a truck with an obstacle. Depending on the type of current and the magnitude of the voltage of the contact network, the following equipment can be used to complete the control station 4 and the connection device 11:

1. High-frequency chokes.

2. Communication capacitors.

3. Connection filters.

4. Equipment for coding and modulation of signals.

5. Modems.

6. Conventional devices for telecontrol and telemetry on the railway

All of the above equipment is widely used for remote control of power plants and substations using high-frequency communication on high voltage transmission lines.

List of drawings

Figure 1 - Trolley.

Figure 1 shows: trolley 2, electric motor 3, control station 4, pantograph 5, contact wire 6, generator 7.

Figure 2 - Locomotive.

Figure 2 shows: locomotive 1, generator 8, electric motor 9, electromagnetic clutch 10, connection device 11.

Sources of information

1. Efremov V.E. Information transfer on 6-35 kV distribution networks.

2. Bykhovsky Y. L. High-frequency communication in power systems.

3. Mikutsky G.V. High-frequency communication on alternating and direct current transmission lines.

Claims (1)

A train emergency stop system, including a trolley rolling in front of the locomotive, on which an inertial circuit breaker is installed with the possibility of affecting the signal or emergency train stop device when the trolley collides with an obstacle, characterized in that the trolley wheel drive motor is connected to the contact wire and it is controlled from the locomotive by high-frequency currents through the high-voltage contact wire, automatically maintaining the set distance of the trolley from locomotive.

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