JP2019199219A - Insulation/short circuit control device for track maintenance vehicle - Google Patents

Abstract

To obtain an insulation/short circuit control device for a track maintenance vehicle, which is small in size and light in weight, has good maintainability, and can be easily mounted, while enabling stable operation by grasping a state of an actual insulated wheel through the bidirectional communication.SOLUTION: The insulation/short circuit control device includes: a switching detection device mounted on an insulated wheel of a track maintenance vehicle having an inner wheel and an outer wheel, which are insulated from each other, to switch between the insulation and the short circuit between the outer wheel and the inner wheel and detect a state thereof; and an operation panel, which is provided on a vehicle body to operate the switching detection device by performing bidirectional wireless communication with the switching detection device and notify of a result of the state detection.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an apparatus for controlling a railroad crossing, a circuit breaker, a railway signal light, and the like by short-circuiting or insulating between insulated wheels used in track maintenance vehicles.

  2. Description of the Related Art Conventionally, track maintenance vehicles are known that run on railway tracks and perform maintenance and inspection work on structures around the tracks such as overhead lines. Track maintenance work using such track maintenance vehicles is generally performed at night when business vehicles do not operate. Conventionally, when a track maintenance vehicle passes through a level crossing or stops near a level crossing, a level crossing warning sound is generated. If it sounds, it will cause inconvenience to the residents along the railroad crossing, so the crossing warning sound will not sound even if it approaches the railroad crossing position.

  In order to realize this, Patent Document 1 (conventional example 1) describes a conduction device for insulated wheels for track maintenance vehicles. As shown in the schematic configuration diagram of FIG. 8, the above apparatus has left and right wheels 11 and 11 fitted to both ends of the axle 1 of the maintenance vehicle, and an insulator 11b is interposed between the inner ring 11a and the outer ring 11c. The brush 15 is fixed to the vehicle body by a support portion from a vehicle body (not shown). The carbon brush 13 at the tip of the brush 15 is connected to the outer ring 11c by being biased by the spring 14 toward the side surface of the outer ring 11c. As shown in FIG. 8, the left and right outer rings 11c, 11c are connected to each other via the lead wires 17 to the carbon brushes 13, 13 connected to each other, and can be short-circuited or insulated by a switch 16 provided on the vehicle body. It is configured as follows. If the switch 16 is turned off to insulate the left and right outer wheels 11c, 11c, it is possible to prevent the alarm from operating when the track maintenance vehicle passes the railroad crossing, and the switch 16 is turned on to turn the left and right outer wheels By short-circuiting 11c and 11c, a warning sound can be sounded as usual when the track maintenance vehicle passes through the railroad crossing. As described above, the switch 16 can be switched from the vehicle body side as required.

FIG. 9 shows another conventional example (conventional example 2) using the brush 15. Although the brush portion 15 is fixedly held to the vehicle body by a support portion from a vehicle body (not shown), it is the same as the conventional example 1, but one wheel is connected to the outer ring 11c and the inner ring 11a via a lead wire 19. The inner ring 11 a is connected to the axle 1. The other wheel is configured such that the carbon brush 13 is connected to the outer ring 11c and the inner ring 11a via the conductive slip portion 18 by urging the carbon brush 13 directed toward the axle in the direction of the axle 1 by the spring 14. Yes. The slip portions 18 connected to the outer ring 11c and the inner ring 11a are disposed adjacent to each other, but since there is an insulating member 20 between them, the outer ring 11c and the axle 1 are not connected on the other wheel side. Not. However, the inner ring 11a and the axle 1 are connected internally. Here, since the outer ring 11c of one wheel is connected to the inner ring 11a of the other wheel by the axle via the lead wire 19 and the inner ring 11a, the operation of the switch 16 provided on the vehicle body causes the one wheel 11c and the other wheel to be connected. The wheel 11c can be short-circuited. In this respect, this conventional example is also configured to be short-circuited or insulated on the same principle as described above.
In the present specification, the terms “axle” and “axle side” are described as including wheels that rotate as the axle rotates unless otherwise specified.

Moreover, the thing of patent document 2 (conventional example 3) is also used.
As shown in the schematic configuration diagram of FIG. 10, on the vehicle body side of the maintenance vehicle, an AC power source 25 that converts and outputs DC to AC signals by inverter control is installed and protrudes toward the axle 1 side. A primary coil 23 excited by the AC power supply 25 is provided. On the axle 1 side, a secondary coil 24 wound around the outer peripheral surface of the axle 1 so as to face the primary coil 23, a relay coil 21a connected to the secondary coil 24, and insulation at both ends of the axle 1 are provided. A relay contact 21b interposed in a short circuit 22 for short-circuiting the wheels 11 is provided. That is, by switching on and off the AC power supply 25 installed on the vehicle body side of the maintenance vehicle, the relay contact 21b of the short circuit 22 that short-circuits the insulating wheels 11 and 11 at both ends of the axle 1 is opened / closed to open / close the short circuit. 22 can be switched between a short-circuited state and an insulated state, and only when the short-circuited state is switched, the switching signal for the railroad crossing control and the railroad signal flowing through the track flows through the short-circuit circuit 22 and a railroad crossing warning sound is generated. , The breaker gets off, and the railway signal light switches to a red light.

  Further, there is also conceived a patent document 3 (conventional example 4) obtained by further improving the above-mentioned patent document 2. In this apparatus, as shown in FIG. 11, the primary coil 30 projects from the vehicle body side toward the axle 1 and is excited by a first AC power source 32 and a second AC power source 33 similar to the AC power source 25. The secondary coil 31 is fixed to the axle 1 so as to face the primary coil 30. The receiving unit 28 is connected to the secondary coil 31, and is connected to the secondary coil 31 in the same manner as the first relay coil 26a that allows the signal from the first AC power supply 32 to pass through. And a second relay coil 27a that allows only a signal from the second AC power source 33 to pass therethrough. A first relay contact 26b and a second relay contact 27b are arranged in series in the short circuit 29 for short-circuiting the insulating wheels 11, 11, and a filter 27c is arranged in parallel with the second relay contact 27b. Has been.

In the conventional railroad crossing warning sound control device having such a configuration, when both the first AC power supply 32 and the second AC power supply 33 are turned on, the first and second relay contacts 26b and 27b of the short circuit 29 are provided. Since both are activated and turned on, the short circuit 29 is in a complete short circuit state in which both a switching signal for railroad crossing control from the track and a switching signal for railway signals flow.
When both the first AC power supply 32 and the second AC power supply 33 are off, both the first and second relay contacts 26b and 27b of the short circuit 29 that short-circuits the insulated wheels 11 and 11 of the tracked vehicle operate. Therefore, the short circuit 29 is in an insulated state in which a switching signal for railroad crossing control from the track and a switching signal for railway signals do not flow at all.

  When the first AC power supply 32 is turned on and the second AC power supply 33 is turned off, the first relay contact 26b arranged in series in the short circuit 29 that short-circuits the insulated wheels of the tracked vehicle is turned on. Since the relay contact 27b is turned off, the short circuit 29 switches the signal passing through the filter (low-pass filter) 27c arranged in parallel with the second relay contact, that is, switching for a low-frequency railway signal from the track. Only the signal passes, and the switching signal for high-frequency crossing control is in a partially short-circuited state. By setting this partial short-circuit state in advance, the track maintenance vehicle in a quiet and practical state where the railroad crossing warning light does not sound at the level crossing position and only the breaker goes down and the railway signal light displays a red signal. It is possible to carry out orbital travel.

12 and 13 show Reference Example 1. FIG. 12A is a view seen from the axle direction, while FIG. 12B is a view seen from the direction perpendicular to the axle. FIG. 13 is a schematic configuration diagram illustrating the entire wiring and the like of Reference Example 1.
As shown in FIGS. 12 and 13, a rotation mounting member 2 and a fixed mounting member 3 are mounted on the outer periphery of the axle 1. The rotation mounting member 2 is fixed to the axle 1, while the fixed mounting member 3 is mounted on the outer peripheral side of the rotation mounting member 2 with a slight gap. The rotation mounting member 2 and the fixed mounting member 3 are connected to each other by a ball bearing 12 provided on the rotation mounting member 2 and a conductive contact member 4 (4a, 4b). As the conductive contact member 4, a conductive bearing, a rotary connector, a slip ring or a brush is desirable. The fixed mounting member 3 is provided with a connecting portion 3 c for connecting to a ball bearing 12 provided on the rotary mounting member 2. One electrode is connected to the conductive portion 3 a of the fixed mounting member 3 from the vehicle body side, and the other electrode is connected to the conductive portion 3 b of the fixed mounting member 3. The conductive portions 3a and 3b are both made of a conductive member, and both are connected and held by the insulating member 5 together with 3c. The conductive portions 3a and 3b are in contact with the contact members 4a and 4b provided on the rotation mounting member 2, respectively. As a result, the lead wire 17 is energized.
When the axle rotates, the rotary mounting member 2 rotates with the rotation of the axle, but the fixed mounting member 3 does not rotate. Further, when the rotation mounting member 2 rotates, the contact members 4a and 4b also rotate around the axle accordingly, so that centrifugal force acts on the contact members 4a and 4b, and the contact condition with the conductive portions 3a and 3b becomes good, respectively. This increases the stability of energization.

FIG. 14 is a schematic configuration diagram illustrating the entire wiring and the like of Reference Example 2 corresponding to Conventional Example 4. For ease of explanation, however, the vehicle body and other parts unnecessary for explanation are omitted. Parts that are not particularly described have the same configuration and operation as the conventional ones.
In Reference Example 2, the energization device of Reference Example 1 is applied to Conventional Example 4, and the rotational mounting member 2, the fixed mounting member 3, the contact member 4 and the like have the same configuration as in Reference Example 1.

Published practical use Heisei 2-33775 gazette JP 2000-52980 A JP 2009-18598 A

However, in the case of using the current energization device, since the one-way communication was the premise configuration, it is difficult to feed back the actual insulation / short circuit state to the main body side, especially carbon brush, coil, contact member, etc. In other words, it was impossible to grasp the situation of the axle side, particularly the insulated wheel, from the boundary between the vehicle body and the axle.
In addition to simple switching between insulation and short-circuiting (complete short-circuiting) of track-bearing vehicles, complicated switching is required when switching between complete short-circuiting and partial short-circuiting as in Conventional Example 4 and Reference Example 2. In such a complicated configuration, the signal may be temporarily interrupted due to physical influences such as vibration during operation, which causes malfunction or failure.
In addition, a gap between the vehicle body and the axle may be widened or narrowed due to a load or vibration from the outside, which may cause a problem in stable transmission. Moreover, the work of attaching or adjusting the carbon brush, coil, contact member, etc. to the vehicle body or the axle has been very difficult and labor intensive.

  The present invention has been made in view of the above problems, and a track maintenance vehicle that can be stably operated by grasping the actual state of an insulated wheel by two-way communication, is small and light, has good maintainability, and can be easily attached. An object of the present invention is to provide an insulation / short-circuit control device.

  The inventor has arrived at the present invention as a result of intensive studies to make up for such conventional drawbacks. To achieve the above object, the insulated / short-circuit control device for a track maintenance vehicle according to claim 1 is provided. A switch detection device that is attached to an insulated wheel in which an inner ring and an outer ring of a track maintenance vehicle are insulated, switches between insulation and short circuit between the outer ring and the inner ring, and detects a state; and two-way wireless communication with the switch detection device provided on a vehicle body And an operation panel for performing notification of the operation of the switching detection device and the result of the state detection.

By enabling wireless two-way communication in this way, it is possible to grasp the state of the insulated wheels from the vehicle body side as to whether insulation or short-circuiting is performed as instructed. For example, ascertaining whether the insulated wheel is actually short-circuited or insulated as instructed by the operator, or providing a sensor or the like on the wheel or axle side, The situation can be judged, and more stable operation is possible.
In addition, you may supply the power supply of a switching detection apparatus from the vehicle main body side with a brush etc. FIG. In this case, unlike the conventional case, it is only necessary to supply power, so that troubles caused by complicated mechanisms are reduced. Furthermore, by providing a battery in the switching detection device, it is not necessary to ensure energization from the vehicle main body to the insulated wheels, so that a simple configuration can be achieved and easy installation is possible.

The insulation / short-circuit control apparatus for track maintenance vehicles according to the invention of claim 2 is characterized in that the switching is performed by a photocoupler.
With this configuration, there is no movable member in the switching circuit, and when power is supplied from the vehicle body side, the energization from the vehicle body side and the switching circuit are electrically disconnected. Can be eliminated. In the present invention, the photocoupler is used to include a photoMOS relay.

According to a third aspect of the insulation / short-circuit control apparatus for a track-holding vehicle according to the present invention, the switching is performed by a MOSFET.
With this configuration, there is no movable member in the switching circuit, and durability and reliability are improved. In addition, if a MOSFET with a smaller amount of electricity is used, even if a battery is provided in the switching detection device without energizing the switching detection device from the vehicle body side, the frequency of replacing the battery is reduced and long-term continuous operation is possible. It becomes possible. Moreover, it becomes possible to attach simply from such a structure.

The short circuit of the insulated vehicle short circuit control device of the invention of claim 4 includes a complete short circuit and one or more partial short circuits, and is configured so that the switching and state detection corresponding to each can be performed. Features.
Here, the complete short circuit indicates a state in which all control signals pass, and the partial short circuit indicates a state in which some control signals pass. For example, when there are three types of control signals, a state in which one or two types of control signals pass is a partial short circuit, and a state in which all three types of control signals pass is a complete short circuit.
With this configuration, for example, the track running of a tracked vehicle in a quiet and practical state where a railroad crossing warning signal does not sound at the railroad crossing position and only the breaker goes down and the railway signal light displays a red signal, as in the past. This can be realized without a complicated configuration.

The operation panel of the insulation / short-circuit control device for the track maintenance vehicle according to claim 5 includes an operation unit having a switch for switching between the insulation and short-circuit states by the switching detection device, and a state detection result from the switching detection device. And a notification unit including an illuminating means for notifying the above.
With this configuration, it is possible to confirm whether the switching detection device is operating as instructed, whether the battery is dead, or the like.

The switching of the insulation / short-circuit control device for the track maintenance vehicle according to the invention of claim 6 corresponds to both polarities.
With this configuration, even when the voltages received from both the left and right rails are reversed due to the opposite direction of the vehicle, the vehicle can operate normally.

As described in detail above, according to the present invention, stable operation can be performed by grasping the actual state of the insulated wheel by bidirectional wireless communication, and a semiconductor switch such as a photocoupler or MOSFET is adopted. Due to the reduction of the drive current, it is possible to drive even with a small battery in the switching detection device, the power supply from the vehicle side can be made unnecessary, and malfunction and durability due to various factors are improved.
In addition, there is an effect that it is possible to provide an insulated / short-circuit control device for a tracked vehicle that is less affected by vibration or the like than conventional products, has good maintainability and can be easily attached.

It is a schematic block diagram explaining this invention apparatus (Example 1). It is a schematic explanatory drawing explaining the wiring etc. of the switching detection apparatus of this invention. It is a schematic wiring diagram explaining the wiring etc. of the switching detection apparatus of this invention. It is a schematic explanatory drawing explaining the wiring etc. of the switching detection apparatus of this invention. It is a schematic diagram explaining the operation panel of the present invention. It is a schematic block diagram explaining this invention apparatus (Example 2). It is a schematic block diagram explaining this invention apparatus (Example 3). It is a schematic block diagram explaining a conventional apparatus (conventional example 1). It is a schematic block diagram explaining a conventional apparatus (conventional example 2). It is a schematic block diagram explaining a conventional apparatus (conventional example 3). It is a schematic block diagram explaining a conventional apparatus (conventional example 4). It is a schematic block diagram explaining the reference example 1 for demonstrating this invention. It is a schematic block diagram explaining the reference example 1 for demonstrating this invention. It is a schematic block diagram explaining the reference example 2 for demonstrating this invention.

  Embodiments of the present invention will be described below with reference to the drawings. Note that the present invention is not limited to the description of the present embodiment. In particular, the present embodiment relates to an operation panel and a switching detection device in an insulated / short-circuit control device for a track maintenance vehicle, but the present invention is not limited to this, and any form used in the conventional insulation / short-circuit device for a track maintenance vehicle. It is included.

  FIG. 1 is a schematic configuration diagram illustrating the overall configuration of the first embodiment. For ease of explanation, however, the vehicle body and other parts unnecessary for explanation are omitted. Parts that are not particularly described have the same configuration and operation as the conventional ones.

In Embodiment 1, the actual switching is performed on the axle side using wireless communication instead of switching the insulation and short circuit of the wheel on the vehicle body side in the configuration of Conventional Example 2. That is, an operation panel OB equipped with a wireless transceiver 35 is installed on the vehicle body side, and a switching detection device SD equipped with a wireless transceiver 36 is installed on the axle side. Two-way wireless communication is possible between them. When an instruction for insulation / short circuit is given on the operation panel OB, a signal is transmitted from the operation panel OB to the switching detection device through bidirectional wireless communication, and the controller in the switching detection device controls insulation / short circuit. In the first embodiment, power is supplied to the switching detection device SD provided on the axle side from the power source on the vehicle body side to the axle side via a brush (see FIG. 1).
Even if it is temporarily impossible to energize between the vehicle body and the axle for some reason, it is possible to eliminate the interruption of power supply by providing a power storage function such as a capacitor and a rechargeable battery in the switching detection device SD. Communication interruption can be eliminated.

FIG. 2 is a wiring diagram of the switching detection device SD. For ease of explanation, FIG. 2 shows an antenna, a power supply, a wiring diagram, and the like outside the switching detection device SD, but usually a part or all of these are arranged inside the SD. In the present invention, a part or all of these are included outside the switching detection device SD, and both are included inside the switching detection device SD.
In FIG. 2, the power supply of the switching detection device SD may be supplied from the vehicle body side or may be performed by providing a battery in the switching detection device SD. However, in the first embodiment (FIG. 1), as described above, the power supply of the switching detection device SD is performed from the vehicle body side.

Here, SW1 and SW2 are switching circuits for switching between insulation and short circuit, respectively. With regard to this switching circuit, in view of durability, reliability, power consumption, and the like, a semiconductor switch that does not have a physical movable part such as a photocoupler or MOSFET is desirable. In the embodiment of the present invention, a photocoupler or a MOSFET is used for the switching circuit.
When SW1 is ON, regardless of whether SW2 is ON or OFF, the outer ring and the inner ring are short-circuited, resulting in a complete short-circuit state in which both a switching signal for level crossing control from the track and a switching signal for railway signals flow.
When both SW1 and SW2 are OFF, the outer ring and the inner ring are insulated, resulting in an insulated state in which a switching signal for railroad crossing control and a switching signal for railway signals do not flow at all.
When SW1 is turned off and SW2 is turned on, the short circuit passes only the signal passing through the low-pass filter 7, that is, the switching signal for the low-frequency railway signal from the track, and the switching signal for high-frequency railroad crossing control is It is cut and it becomes a partial short circuit state. By setting the partial short-circuit state in advance, it is possible to make a state in which the railroad signal lamp displays a red signal without the crossing alarm sounding at the crossing position and only the breaker going down.

Further, it is possible to confirm whether or not actual insulation / short-circuiting has been performed. That is, in FIG. 2, the complete short circuit state can be detected by PC1, and the partial short circuit state can be detected by PC2. If neither PC1 nor PC2 can be detected, it is determined that the insulation state is such that neither signal flows.
Then, through bidirectional wireless communication between the operation panel OB and the switching detection device SD, it is confirmed by the operation panel OB installed on the vehicle body side whether or not such control is appropriately performed by the switching detection device SD. Is possible.

When the switching circuit used in the switching detection device is a photocoupler, when power is supplied from the vehicle body side, the energization from the vehicle body side and the switching circuit are completely disconnected from each other. Malfunctions and failures can be eliminated.
In the case of a MOSFET that uses a small amount of electricity, a battery may be provided in the switching detector without supplying power from the vehicle body side to supply power to the switching detector, and power may be supplied from there. Since the amount of electricity used is small, the frequency of battery replacement is reduced and long-term continuous operation becomes possible.
According to the present invention, by using a MOSFET with a small amount of electricity used, it is not necessary to replace the battery for at least one year. If only the battery is replaced at the periodic inspection performed every year, the other battery There is no need for replacement.
In addition, in the conventional insulation / short-circuit control device, the state on the axle side cannot be detected from the vehicle body side, whereas in the present invention, not only the insulation / short-circuit state but also the state of the battery and the switching detection device are always present. Since it can be confirmed on the operation panel, even if there is a problem with the battery or the switching detection device, it can be handled immediately, improving maintenance, reducing accidents and mistakes, and secondary damage. Can be reduced.

FIG. 3 is a wiring diagram using a photocoupler (photo MOS relay) in the switching circuit. Normally, one photocoupler (photo MOS relay) is used for each of SW1 and SW2 in FIG. 2, but in FIG. 3, Q1 and Q2 are assigned to SW1 and Q3 and Q4 are assigned to SW2 for the purpose of reinforcing the switching function. Two photocouplers (photo MOS relays) are used. However, the basic principle is the same as that described in FIG.
In this way, the use of a plurality of photocouplers (photo MOS relays) for SW1 and SW2 can reduce problems and malfunctions caused by the switching circuit.
In addition, since the voltages received from both the left and right rails are reversed when the direction of the vehicle is reversed, it is necessary to be able to cope with any of these cases. In order to cope with this problem, the photocouplers (photo MOS relays) indicated by Q1, Q2, Q3, Q4, PC1 and PC2 in FIG. 3 are configured to correspond to both polarities.
Note that the configuration, operation, effect, and the like of such a photocoupler (photoMOS relay) in FIG. 3 can be obtained in the same manner even if the photocoupler (photoMOS relay) is replaced with a MOSFET.

FIG. 4 is obtained by adding a switching circuit SW3 and PC3 for detecting an insulation / short-circuit state by using a bandpass filter (BPF) to FIG.
Thereby, in addition to the switching signal for the low-frequency railway signal and the switching signal for the high-frequency railroad crossing control, it is possible to realize a partial short-circuit state with a switching signal of another frequency.
By adding a switching circuit or the like in this way, a partial short-circuit state with a plurality of switching signals having different frequencies can be realized.

FIG. 5 shows the operation panel. FIG. 5A corresponds to FIGS. 2 and 3, and FIG. 5B is an operation panel corresponding to FIG.
As shown in FIG. 5 (a), the operation panel shows respective states of insulation, short circuit or LPF (partial short circuit), and a corresponding confirmation lamp and operation illumination push switch are arranged adjacent to each other. Has been. A desired state can be obtained by pressing an operation illumination push switch corresponding to each state of insulation, short circuit or LPF.
The confirmation lamp indicates the status of the insulation / short circuit device. An insulating lamp is lit when insulated, a short lamp is lit when short-circuited, and an LPF lamp is lit when partially short-circuited. For example, when an illuminated push switch for short-circuiting operation is pressed, two-way wireless communication is performed with a switching detection device installed on the axle side, and a short circuit is established by a switching circuit inside the switching detection device. When the short-circuit state is actually detected by the switching detection device, two-way wireless communication is performed with the operation panel, and the short-circuit lamp is lit. Even if the illuminated push switch for short-circuit operation is pressed, if the short-circuit state is not actually caused due to a failure or the like, the short-circuit state is not detected, so the short-circuit lamp is not lit.

FIG. 6 is a schematic diagram illustrating the entire wiring and the like of the second embodiment. For ease of explanation, however, the vehicle body and other parts unnecessary for explanation are omitted. In addition, about the place which is not demonstrated especially, it is the same structure and effect | action as a conventional thing and Example 1, etc.
The second embodiment uses the wireless communication instead of controlling the first and second relays 26 and 27 by the first AC power source 32 and the second AC power source 33 in the configuration of the first reference example. In other words, bidirectional wireless communication is possible between the wireless transceiver 35 provided on the vehicle body side and the wireless transceiver 36 provided on the axle side. However, the power supply of the wireless transceiver 36 provided on the axle side is not wireless, and the power source of the main body is used as in the first embodiment.

FIG. 7 is a schematic configuration diagram illustrating the entire wiring and the like of the third embodiment. For ease of explanation, however, the vehicle body and other parts unnecessary for explanation are omitted. Parts that are not particularly described have the same configuration and operation as those of the conventional one and Examples 1 and 2.
The third embodiment eliminates the need for energization from the vehicle body side in the configurations of the first and second embodiments. Specifically, a battery is provided in the switching detection device so as to cover the power supply of the switching detection device. By providing a battery in the switching detection device SD, long-term operation is possible even without power supply from the vehicle body side. Furthermore, the battery replacement frequency can be reduced by using a rechargeable battery or a capacitor for the switching detection device SD. In addition, if there is a function of charging or storing electricity using the current flowing through the rail, it is possible to further reduce the battery replacement frequency. In that case, it is desirable to use a diode bridge and a charge / discharge circuit.

  The present invention also includes a control method performed by the insulated vehicle short circuit control device. For example, a switch detection device that is attached to an insulated wheel in which an inner ring and an outer ring of a track maintenance vehicle are insulated and switches between insulation and short circuit between the outer ring and the inner ring and detects a state, and a bidirectional wireless communication with the switch detection device provided on a vehicle body. An insulated / short-circuit control method for a track maintenance vehicle including an operation panel that performs the operation of the switching detection device and notifies the result of the state detection is also included in the present invention.

OB Operation Board
SD switching detection device (Switching Device)
DESCRIPTION OF SYMBOLS 1 Axle 2 Rotation mounting member 3 Fixed mounting member 3a Conductive part to which electrode (one side) provided in fixed mounting member connects 3b Conductive part to which electrode (the other side) provided in fixed mounting member connects 3c Provided in fixed mounting member 4 Rotation connector (conductive contact member)
4a Rotary connector (one side) (conductive contact member)
4b Rotary connector (other side) (electrically conductive contact member)
5. Support device (fixed mounting member holder) attached to the main body side to fix the fixed mounting member
6 Low-pass filter for photocoupler 2 (PC2) 7 Low-pass filter for switching circuit 2 (SW2) 8 Bandpass filter for photocoupler 9 Bandpass filter for switching circuit 3 (SW3) 10 Car body 11 Insulated wheel 11a Inner ring 11b Insulating member 11c Outer ring 12 Ball bearing 13 Carbon brush 14 Spring 15 Brush 16 Switch 17 Lead wire 18 Slip portion 19 Lead wire 20 Insulating member 21 Relay 21a Relay coil 21b Relay contact 22 Short circuit 23 Primary coil 24 Secondary coil 25 AC power supply 26 First Relay 26a first relay coil 26b first relay contact 27 second relay 27a second relay coil 27b second relay contact 27c filter (low-pass filter)
28 Receiving Unit 29 Short Circuit 30 Primary Coil 31 Secondary Coil 32 First AC Power Supply 33 Second AC Power Supply 34 Antenna 35 Radio Transceiver 36 Radio Transceiver

Claims (6)

  A switch detection device that is attached to an insulated wheel in which an inner ring and an outer ring of a track maintenance vehicle are insulated, switches between insulation and short circuit between the outer ring and the inner ring and detects a state, and is provided in a vehicle body and performs bidirectional wireless communication with the switch detection device. An insulation / short-circuit control device for a track maintenance vehicle, comprising: an operation panel for operating the switching detection device and notifying a result of the state detection.   The insulation / short-circuit control device for a track maintenance vehicle according to claim 1, wherein the switching is performed by a photocoupler.   The insulation / short-circuit control device for a track maintenance vehicle according to claim 1, wherein the switching is performed by a MOSFET.   The short circuit includes a complete short circuit and one or more partial short circuits, and is configured to perform the switching and state detection corresponding to each of the short circuit. Insulation / short-circuit control device for track maintenance vehicles.   The operation panel includes an operation unit including a switch for switching between an insulation state and a short-circuit state by the switching detection device, and a notification unit including an illuminating unit that notifies a state detection result from the switching detection device. The insulated / short-circuit control device for a tracked vehicle according to any one of claims 1 to 4. The insulation / short-circuit control device for a track maintenance vehicle according to any one of claims 1 to 5, wherein the switching corresponds to both polarities.

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