RU2747060C1 - Device for mechanical cleaning of ice from contact wire - Google Patents

Abstract

FIELD: electrified transport.SUBSTANCE: invention relates to the field of electrified transport. A device for mechanical cleaning of ice from a contact wire contains a lift with a bit installed on it, the rotation frequency of which is regulated by a frequency generator. When the bit acts on the contact wire, it vibrates, as a result of which the ice is removed from the contact wire.EFFECT: invention is aimed at ensuring high-quality cleaning of the contact wire from ice.3 cl, 6 dwg

Description

Technology area

The invention relates to the field of electrified railway transport, namely, to devices for carrying out work on the mechanical cleaning of the contact wire from ice formations.

During icing, the contact wires are covered with a layer of ice and frost, which increase the weight and disrupt the adjustment of the contact suspension, increase the sag of the wires, which in turn can lead to a deterioration in the current collection and breaks of the contact wires. There are four main methods of dealing with ice on wires. These are preventive heating of wires, melting of already formed ice, applying a protective coating on the contact wire and mechanical removal of ice.

The invention makes it possible to clean the ice layer on the surface of the contact wire with the help of mechanical removal of ice and improve the quality of the current collection of the railway electric rolling stock.

State of the art

Known devices for mechanical cleaning of the contact wire from ice, consisting of a pantograph with a fiber drum:

1. Ice-cleaning device MOG-6.

2. Ice cleaning device MTF-7.

3. Vibrating pantograph.

4. Pneumatic drum.

The disadvantage of the MTF-6 and MTF-7 devices is the possibility of breaking the contact wire at maximum zigzags, in the catching zone of the air arrow runner and at the junctions of the anchor sections. In this connection, the operator needs to constantly monitor the operation of the MTF-6 and MTF-7 devices in order to lower the head of the device in the catching zone of the air arrow runner and at the joints of the anchor sections.

The disadvantage of the vibrating pantograph and the pneumatic drum is the complexity of the hydraulic, electrical and mechanical systems, which increases the cost of production and maintenance of equipment. Existing devices have poor reliability at low temperatures, which leads to increased operating costs for routine maintenance.

The disadvantages of all known devices are poor-quality cleaning of the contact wire from ice, as well as deformation of the contact wire due to blows of the bits on the contact wire with a constant bit speed, without the possibility of adjusting the bit speed.

Also known is a device for applying a protective coating to a contact wire (Invention No. RU 2699202 C1). A device for applying a protective coating to a contact wire, characterized in that it contains a lift with a container for liquid, a liquid supply tube and a shaft with blades installed in the container, located at an angle to the axis of the railway track.

The technical problem of the claimed invention is to overcome the technical disadvantages inherent in analogs, which leads to the need to create a reliable device that provides high-quality cleaning of the contact wire from ice, without monitoring the device along the entire length of the contact wire, including on the air switches and the joints of the anchor sections, with the ability to adjust the frequency of rotation of the bit.

Disclosure of the essence

The technical result of the claimed invention is achieved due to the minimum mechanical action of the bit on the surface of the contact wire, with the possibility of adjusting the rotation of the bit, while improving the quality of mechanical cleaning of the contact wire from ice throughout the entire length of the contact wire, including on the air arrows and the joints of the anchor sections

The technical result is achieved by creating a device for mechanical cleaning from ice from a contact wire, including a hoist with a bat installed on it, the speed of which is regulated by a frequency generator.

Due to the configuration of the bit and the runner, the minimum mechanical action of the bit on the contact wire is ensured.

By adjusting the bit rotation frequency for a given wall thickness of ice on the contact wire, the quality of mechanical cleaning of the contact wire from ice is improved.

Due to the configuration of the contact runner, mechanical cleaning of ice is provided along the entire length of the contact wire, including on air switches and interfaces of anchor sections.

In particular cases, the device may contain a hoist, a motor, an electric power generator, a geared motor, an insulating shaft, a frequency generator, a winch, a counterweight and a limit switch.

Due to the lift, the bits are lifted to the contact wire, to ensure mechanical cleaning of ice along the entire length of the contact wire, including on the air switches and the joints of the anchor sections.

Due to the electric motor, the insulating shaft rotates, ensuring the rotation of the rotor of the generator of electrical energy.

The electric power generator supplies power to the geared motor.

Due to the gear motor, rotation of the bit is provided for mechanical cleaning of ice along the entire length of the contact wire, including on the air switches and interfaces of the anchor sections.

The insulating shaft provides electrical isolation between the grounded parts of the electric motor and the parts of the electric generator that are under the operating voltage of the railway contact network, which is necessary for the safe performance of work on the mechanical cleaning of the contact wire from ice under the voltage of the direct and alternating current contact network.

Due to the frequency generator, the rotation of the bit is regulated, ensuring the removal of ice from the contact wire at different thickness of the ice wall.

Due to the winch, the counterweight is raised and lowered for free movement of the hoist over the entire range of the overhead wire suspension height.

Due to the limit switch, the power supply circuit of the winch is switched off to bring the device into a safe transport position.

Brief Description of Drawings

FIG. 1 is a schematic diagram of the operation of the device.

FIG. 2 - 3D model of the device bit.

FIG. 3 - 3D model of a device for mechanical cleaning of ice from a contact wire.

FIG. 4 - 3D model of the device head.

FIG. 5 - 3D model of a device for mechanical cleaning of ice from a contact wire, combined with a device for applying a protective coating to the contact wire.

FIG. 6 - 3D model of a device for mechanical cleaning of ice from a contact wire, combined with a device for applying a protective coating on the contact wire, installed on a four-axle railway platform.

The device (Fig. 1) consists of an electric power generator (1), a three-phase connector of the device (2), a frequency generator of electric power (3), a bit (4), an electric motor (5), an electric power generator (7), a gear motor (8), control panel (11), contact wire (13), winch (15), beacon (17), searchlight (18).

The device (Fig. 2) consists of bits (4).

The device (Fig. 3) consists of a bit (4), an electric motor (5), an insulating shaft (6), an electric power generator (7), a gear motor (8), a king pin (9), a movable bracket (10), a counterweight (16), beacon (17), searchlight (18).

The device (Fig. 4) consists of a bit (4), a gear motor (8), guides (14).

The device (Fig. 5) consists of a module for mechanical cleaning of ice (12), a contact wire (13), a module for applying a protective coating to the contact wire (19).

The device (Fig. 6) consists of a module for mechanical cleaning of ice from the contact wire (12) and a module for applying a protective coating to the contact wire (19).

Implementation of the invention

The operation of the device for cleaning ice from a contact wire is as follows:

1. Connect the frequency generator of electrical energy (1) to the sockets of the device using two three-phase plugs, according to FIG. one.

2. Connect the generator of electrical energy to the three-phase connector of the device (2), according to FIG. one.

3. Switch on the generator of electrical energy.

4. Switch on the frequency generator of electrical energy (3) by pressing the start button, according to FIG. one.

5. By turning the knob of the frequency regulator, adjust the bit rotation frequency (4), which is optimal for removing ice, according to FIG. 2. The optimum bit rotation speed is determined depending on the thickness of the ice wall on the contact wire.

6. The electric power generator supplies voltage to a frequency electric power generator, which supplies voltage to the electric motor (5) according to FIG. one.

7. The electric motor, rotating the insulating shaft (6), transmits the voltage to the rotor of the electric power generator (7), according to FIG. 3.

8. The electric power generator transmits voltage to the gear motor (8), driving the bit (4), according to FIG. four.

9. Remove the king pin (9) from the fixing movable bracket (10), according to FIG. 3.

10. Using the control panel (11), press the down button, according to FIG. 1. When the movable bracket reaches the lowest point, release the button.

11. The movable frame of the module for mechanical cleaning of ice (12) from the overhead wire rises to the overhead wire according to FIG. five.

12. When the bit acts on the contact wire (13), it vibrates, as a result of which ice is removed from the contact wire, according to FIG. five.

13. The resulting ice is thrown to the sides through the guides (14) of the head of the device, made in the form of a gable roof, according to FIG. four.

14. After completing the work, the operator on the frequency generator reduces the number of revolutions to zero, and after pressing the stop button, the bits stop rotating.

15. Press the up button on the control panel to raise the movable arm.

16. The control panel controls the direction of rotation of the rotor of the winch (15), according to FIG. one.

17. Under the action of the bracket, the counterweight (16) pulls the movable frame with it until it is completely lowered, according to FIG. 3.

18. Secure the king pin in the hole with a cotter pin.

19. Press the stop button on the power generator.

20. In the process of clearing the ice, the flashing light (17) is lit, warning of the presence of high voltage on the movable frame, and the spotlight (18) illuminates the place of work, providing visibility in low light, according to FIG. 3.

21. FIG. 6 shows a combined device consisting of a module (12) for mechanical cleaning of ice from a contact wire and a module for applying a protective coating to the contact wire (19), installed on a four-axle railway platform (20).

22. One person is required to operate the device.

Claims (3)

1. A device for mechanical cleaning of ice from a contact wire, characterized in that it contains a hoist with a bit installed on it, the rotation frequency of which is regulated by a frequency generator. 2. The device according to claim 1, characterized in that there can be several bits. 3. The device according to claim 1, wherein the frequency generator is electrically isolated from the bit.

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