RU2520833C1 - Travel direction switcher for trolleybus collectors at points of overhead contact system branching - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: device comprises the base adapted for fixture by anchoring wires to supports of trolleybus overhead contact system, a travel direction switcher mounted at the base, a drive mounted at the base and coupled to the switcher, insulators mounted between components of the device. The travel position switcher has two positions corresponding to two directions of branching in the overhead contact system and the base has a travel limiter for the switcher. The device is made as a turntable coupled to the drive where two pairs of guides are mounted for the trolleybus collectors. The device has an additional axis mounted on the base or a turntable that ensures angular motion of the turntable in regard to the base with potential passing of the trolleybus collectors along it. The turntable is made of non-conducting material.

EFFECT: improvement in reliability of the travel direction switcher for trolleybus collectors at points of the overhead contact system branching due to smooth switching.

7 cl, 4 dwg

Description

The invention relates to electrical equipment of contact networks of vehicles with electric traction, and in particular, to devices for switching the direction of movement of the current collectors of the trolleybus at the branching points of the contact network, containing a base adapted for fastening by means of anchor cables to the supports of the contact trolleybus network located on the basis of means for switching the direction of movement of the current collectors trolley bus, a drive located on the base and connected to a switching means, insulators, ra required between elements of the device, wherein the switching means has two positions corresponding to two lines branching catenary, and the base has an element limiting the movement of the switching means and can be used in urban trolley contact networks.

State of the art

From the description on the wikipedia resource, namely, devoted to trolleybus arrows (http://www.ru.wikipedia.org/wiki/Trolleybus arrow), there is a device for switching the direction of movement of current collectors of a trolleybus at points of branching of the contact network, namely a trolleybus arrow, comprising a base adapted for fastening by means of anchor cables to the supports of a contact trolleybus network, a means located on the base for switching the direction of movement of the trolleybus current collectors, a drive located on the base and connected second shifting means with insulators disposed between the elements of the device, wherein the switching means has two positions corresponding to two lines branching catenary, and the base has an element limiting the movement of the switching means.

The arrow pen is used as a switching means, and an electromagnet is used as a drive.

This solution is the closest in technical essence and the achieved technical result and is taken as a prototype of the invention.

The disadvantage of this solution is the low reliability of switching the direction of movement of the trolley bus current collectors at the branching points of the contact network, due to the fact that the current collector passes along joints that are located at an angle, the driver must pass the arrow at a low speed. At the same time, frequent failures in the operation of the arrows are explained by the poor conditions in which the arrows are located and the shakiness of their mechanisms. When the compressor is turned on, there are current surges - this can also lead to a false positive. In addition, it is not always possible to withstand the high-speed mode of passing the arrow, often depending on the different speed of passing the arrow behaves differently. The speed of passage may depend on the situation on the road.

Disclosure of invention

Based on this original observation, the present invention mainly aims to provide a device for switching the direction of movement of the current collectors of the trolleybus at the branching points of the contact network, which allows at least to smooth out one of the above disadvantages. Namely, to increase the reliability of switching the device for the direction of movement of the current collectors of the trolley in the branching points of the contact network by ensuring smooth switching, as well as the possibility of passing the switching point at any speed of the trolley.

To achieve this goal, the switching means is made in the form of a rotary platform connected to the drive, on which there are two pairs of rails for the trolley bus current collectors. The device additionally has an axis located on the base or on the turntable and providing angular movement of the turntable relative to the base with the possibility of simultaneously passing through it two current collectors of the trolley.

Thanks to this advantageous characteristic, it becomes possible to use a single unit assembled as a switching device

factory conditions, which by turning at a small angle would provide a translation of the direction of the current collectors of the trolley bus.

The turntable is made of non-conductive material.

Due to this advantageous characteristic, it becomes possible to prevent a short circuit during the passage of trolley bus current collectors through this device. Indeed, even on a de-energized section, when the trolleybus moves under its own traction, a potential difference can form on two current collectors, which can lead to a short circuit.

There is an embodiment of the invention in which the guides for the trolley bus collectors located on the turntable are made in the form of arcs.

Thanks to this advantageous characteristic, it becomes possible to ensure smooth switching of the device for the direction of movement of the current collectors of the trolley bus at any speed of the trolley bus.

There is an embodiment of the invention in which the guides for the trolley bus collectors located on the turntable are made in the form of grooves.

Due to this advantageous characteristic, it becomes possible to carry out an embodiment of the invention when the trolleybus current collectors pass through the grooves located on the turntable.

There is an alternative embodiment of the invention in which the guides for the trolley bus collectors located on the turntable are made in the form of sections of wires.

Thanks to this advantageous characteristic, it becomes possible to carry out an embodiment of the invention when the trolleybus current collectors pass through the wire sections located on the turntable.

There is an embodiment of the invention in which the drive is connected to a remote control unit that has an electromagnetic radiation receiver electrically connected to the drive and an electromagnetic radiation transmitter with controls located in the trolleybus driver's cab.

Thanks to this advantageous characteristic, it becomes possible to provide remote control of the drive of the turntable. In the driver's cab of the trolleybus there is an electromagnetic radiation transmitter with controls, with which the driver can remotely control the position of the turntable.

There is an embodiment of the invention in which the turntable has means for restricting the angular movements of the turntable.

Due to this advantageous characteristic, it becomes possible to limit the movement of the turntable to prevent trolley bus current collectors from converging.

There is an embodiment of the invention in which the turntable has means for returning the turntable to one of its extreme positions when the turntable drive is idle.

Thanks to this advantageous characteristic, it becomes possible to simplify the switching of the turntable, ensuring that it is located in one of the previously known positions by default. Accordingly, in half the cases, the trolley bus driver does not need to perform any operations to undergo branching, which increases the usability of the invention.

Brief Description of the Drawings

Other distinguishing features and advantages of the invention clearly follow from the description below for illustration and not being restrictive, with reference to the accompanying drawings, in which:

- figure 1 schematically depicts the bottom view of the device for switching the direction of movement of the current collectors of the trolley bus at the branching points of the contact network, in the initial (first) static position of the rotary platform, in the embodiment on the rotary platform, the guides for the current collectors of the trolley bus in the form of sections of wires according to the invention;

- figure 2 schematically depicts an external view of the bottom of the device for switching the direction of movement of the current collectors of the trolley in places

branching of the contact network, in another (second) static position of the rotary platform, in the embodiment of the manufacture of guides for trolley bus current collectors on the rotary platform in the form of sections of wires according to the invention;

- figure 3 schematically depicts the bottom view of the device for switching the direction of movement of the current collectors of the trolley bus in the places of branching of the contact network, in the initial (first) static position of the rotary platform, in the embodiment on the rotary platform, the guides for the current collectors of the trolley bus in the form of grooves, according to the invention;

- figure 4 depicts the steps of switching the direction of movement of the current collectors of the trolley at the branching points of the contact network, according to the invention.

According to figures 1, 2 and 3, a device for switching the direction of movement of the current collectors of the trolley bus (not shown in the figures) at the branching points of the contact network contains a base 1 adapted for fastening by means of anchor cables 2 to the supports 3 of the contact trolley network. Also contains located on the base 1 means of switching the direction of movement of the current collectors of the trolley bus, a drive 4 located on the base and connected with the switching means, insulators 5 located between the elements of the device. The switching means has two positions (first and second) corresponding to the two directions of branching of the contact network. One of them is shown in figure 1, and the second is shown in figure 2. The base 1 has an element of restriction 6 of the movement of the switching means.

The switching means is made in the form of a rotary platform 7 connected to the drive 4. On the rotary platform 7 there are two pairs of guides 8 for trolley bus current collectors.

The device additionally has an axis 9 located on the base or on the turntable and providing angular movement of the turntable 7 relative to the base 1 with the possibility of simultaneously passing through it two current collectors of the trolley.

The turntable 7 is made of non-conductive material. The guides 8 for the trolley bus current collectors located on the turntable 7 can be made in the form of sections of wires (see Figs. 1 and 2) or in the form of grooves (see Fig. 3.).

The drive 4 is connected to a remote control unit 10, which has an electromagnetic radiation receiver 11 electrically connected to the drive, and an electromagnetic radiation transmitter with controls located in the driver's cab of the trolley bus. The figures show a part of block 10 located on the base 1, a part of the remote control located in the driver's cab of the trolley bus is not shown.

The turntable has a means of restricting the angular movement of the turntable. In figures 1-3, such a tool is a recess 12, adapted for contact with the element restrictions 6 movement of the switching means located on the base 1.

The turntable has a means of returning 13 the turntable to one of the states when the turntable drive is idle. In figures 1-3, such a tool is shown as a spring, returning the turntable to the first position.

In general, the rotary actuator 4 may be of a liquid or mechanical or electrical nature. In figures 1-3 shows a variant when the drive is made of an electrical nature, for example in the form of an electromagnet.

The implementation of the invention

Switching the direction of movement of the current collectors of the trolley bus at the branching points of the contact network according to the proposed device from the initial (first) position of the rotary platform 7, corresponding to the contact of the guides 8 of the rotary platform 7 with the wires of the original (first) direction of the contact network of the trolley bus, is as follows (see Fig. 4):

- Stage A1 - the controls located in the driver’s cab of the trolleybus are supplied with a control electric signal to the transmitter of electromagnetic radiation, which, being caught by the receiver 11

electromagnetic radiation, electrically connected to the actuator 4, drives it;

- Step A2 - the drive 4 drives the rotary platform 7, as a result of which the rotary platform 7 makes an angular movement relative to axis 9;

- Step A3 - when the means for restricting the angular displacement of the turntable (recess 12) come into contact with the element for restricting the movement of the switching means 6 located on the base 1, the angular displacement of the turntable 7 relative to the axis 9 stops. At this moment, the guides 8 of the turntable come into contact 7 with wires of another (second) direction of the contact network of the trolley bus.

In the embodiment, when the remote control unit is not used, the proposed device can switch under the influence of a circuit connected to the drive at the moment the trolleybus passes through the contact network with the proposed device when the driver activates the trolleybus traction. At this moment, the trolleybus itself is a source of electric current, which makes the drive operate and thereby change the position of the turntable.

The proposed device for switching the direction of movement of the current collectors of the trolley at the branching points of the contact network can be implemented by a specialist in practice and, when implemented, ensures the implementation of the declared purpose. The possibility of being implemented by a specialist in practice follows from the fact that for each feature included in the claims on the basis of the description, the material equivalent is known, which allows us to conclude that the criterion of "industrial applicability" for the invention is met.

Thus, due to the fact that the switching means is made in the form of a rotary platform connected to the drive, on which there are two pairs of guides for the trolley bus current collectors, and the device additionally has an axis located on the base or on the rotary platform and providing angular movement of the rotary platform relative to the base with the possibility of simultaneously passing through it

two trolley bus current collectors, while the rotary platform is made of non-conductive material and the claimed technical result is achieved, namely, improving the reliability of switching the device to direct the movement of the trolley current collectors in the branching points of the contact network by ensuring smooth switching, as well as the possibility of passing the switching point at any trolley bus speed .

Claims (7)

1. A device for switching the direction of movement of the current collectors of the trolleybus at the branching points of the contact network, comprising a base adapted for fastening by means of anchor cables to the supports of the contact trolleybus network, located on the base means for switching the direction of movement of the current collectors of the trolleybus, a drive located on the base and associated with the switching means , insulators located between the elements of the device, and the switching means has two positions corresponding to two the branching directions of the contact network, and the base has an element for restricting the movement of the switching means, characterized in that the switching means is made in the form of a rotary platform connected to the drive on which there are two pairs of guides for trolley bus current collectors, and that the device further has an axis located on the base or on the turntable and providing angular movement of the turntable relative to the base with the possibility of simultaneous passage along two current collectors trolley, and in that the turntable is made of non-conductive material. 2. The device according to claim 1, characterized in that the guides for the trolley bus collectors located on the turntable are made in the form of arcs. 3. The device according to claim 1, characterized in that the guides for the trolley bus collectors located on the turntable are made in the form of grooves. 4. The device according to claim 1, characterized in that the guides for the trolley bus collectors located on the turntable are made in the form of sections of wires. 5. The device according to claim 1, characterized in that the drive is connected to a remote control unit, which has an electromagnetic radiation receiver, electrically connected to the drive, and an electromagnetic radiation transmitter with controls located in the driver’s cab. 6. The device according to claim 1, characterized in that the turntable has a means of limiting the angular movements of the turntable. 7. The device according to claim 1, characterized in that the turntable has a means of returning the turntable to one of the extreme positions with the idle drive of the turntable.

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