JP4903640B2 - Railroad crossing warning sound control device for maintenance vehicles - Google Patents
Railroad crossing warning sound control device for maintenance vehicles Download PDFInfo
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- 238000012423 maintenance Methods 0.000 title claims description 39
- 238000009413 insulation Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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Description
本発明は、保線作業等を行なう保守用車両が装備する踏切り警報音制御装置の改良に関する。 The present invention relates to an improvement of a railroad crossing warning sound control device provided in a maintenance vehicle that performs track maintenance work and the like.
通常、軌道の踏切り位置では、列車が接近すると、自動的に警報音が鳴り、遮断機が降りるようになっている。軌道の踏切り近傍部には、踏切警報機の作動を司る踏切制御用のリレーと、遮断機の作動並びに鉄道信号灯の切り換えを司る鉄道信号用のリレーとが、いずれも左右の軌道間を電気的に接続するように設けられているからであり、そこに列車が入ってくると、列車の車輪を介して鉄製の輪軸に電気が流れ、上記の各リレーには電気が流れなくなる。踏切警報機および遮断機は、これらのリレーに電気が流れていれば作動せず、電気が流れなくなると、列車の接近を知らせる踏切警報音を鳴らし、遮断機を降ろすとともに鉄道信号灯を青信号から赤信号に切り換えて、他列車の接近を禁止するのである。 Usually, at the railroad crossing position, when the train approaches, an alarm sound is automatically sounded and the circuit breaker is lowered. In the vicinity of the railroad crossing, there are a railroad crossing control relay that controls the operation of the railroad crossing alarm and a railroad signal relay that controls the operation of the breaker and the switching of the railroad signal lights. This is because when the train enters, electricity flows to the iron wheel shaft through the train wheels, and electricity does not flow to each of the relays. Railroad crossing alarms and circuit breakers do not operate if electricity is flowing through these relays. When electricity stops flowing, a railroad crossing warning sound is sounded to notify the approach of the train. Switch to the signal and prohibit the approach of other trains.
ところが、専ら夜間に保線作業等を行なう保守用車両の場合は、踏切りを通過する際や、踏切り近くで停止する場合等に踏切警報音が鳴り響くと、踏切り近傍の沿線住民に迷惑をかけることになる。このため、保守用車両には、従来より踏切り位置に接近しても踏切警報音が鳴らないようにする踏切り警報音制御装置というものが装備されている。 However, in the case of maintenance vehicles that perform track maintenance work at night, etc., if a crossing warning sound is heard when passing through a crossing or stopping near a crossing, it may cause inconvenience to residents along the crossing. Become. For this reason, maintenance vehicles are conventionally equipped with a crossing warning sound control device that prevents a crossing warning sound from sounding even when approaching a crossing position.
従来のこの種の踏切り警報音制御装置は、図４および図５に示すように、保守用車両の輪軸１両端部に嵌入される左右の車輪２，２を、いずれも輪心２ａと外輪２ｃの間に絶縁体２ｂを介在させた絶縁車輪に形成する。そして保守用車両の車体側には、交流電源１５を設置するとともに、輪軸１側に向かって突出し上記交流電源１５により励磁される１次コイル１６を設ける。また輪軸１側には、その外周面に前記１次コイル１６に対向させて巻回される２次コイル１７と、該２次コイルに接続されたリレーコイル１８、それに輪軸１両端部の絶縁車輪２，２間を短絡する短絡回路１９に介装されるリレー接点２０とを設ける。概ねこのような構造になっている（例えば、特許文献１参照）。 As shown in FIGS. 4 and 5, this type of conventional railroad crossing warning sound control device has left and right wheels 2 and 2 fitted to both ends of a wheel shaft 1 of a maintenance vehicle. It forms in the insulated wheel which interposed the insulator 2b in between. An AC power supply 15 is installed on the vehicle body side of the maintenance vehicle, and a primary coil 16 that protrudes toward the wheel shaft 1 and is excited by the AC power supply 15 is provided. Further, on the wheel shaft 1 side, a secondary coil 17 wound around the outer peripheral surface thereof facing the primary coil 16, a relay coil 18 connected to the secondary coil, and insulated wheels at both ends of the wheel shaft 1. A relay contact 20 interposed in a short circuit 19 for short-circuiting between 2 and 2 is provided. This structure is generally such (see, for example, Patent Document 1).
すなわち、保守用車両の車体側に設置した交流電源１５のオン・オフにより、輪軸１両端部の絶縁車輪２，２間を短絡する短絡回路１９のリレー接点２０を開閉操作して、上記短絡回路１９を短絡状態と絶縁状態とに切り換えることが可能であり、短絡状態に切り換えた場合のみ、該短絡回路１９に軌道を流れる前記踏切制御用および鉄道信号用のリレー信号が流れて、踏切警報音が鳴り、遮断機が降りるとともに鉄道信号灯が赤信号に切り換わるようにしたものである。 That is, by switching on and off the AC power supply 15 installed on the vehicle body side of the maintenance vehicle, the relay contact 20 of the short circuit 19 that short-circuits between the insulated wheels 2 and 2 at both ends of the wheel shaft 1 is operated to open and close. 19 can be switched between a short-circuited state and an insulated state, and only when the short-circuited state is switched, the crossing control relay signal and the railroad signal relay signal flowing through the track flow through the short-circuit circuit 19, and a crossing warning sound is generated. , The breaker gets off, and the railway signal light switches to a red light.
しかしながら、上記したように従来の踏切り警報音制御装置は、保守用車両の絶縁車輪２，２間に設けられた短絡回路１９を、交流電源１５のオン・オフにより単純に全ての信号が流れる完全短絡状態と、全ての信号が全く流れない絶縁状態との２位置に切り換えるだけのものであった。このため、絶縁位置では、前記短絡回路１１には、軌道からの踏切制御用のリレー信号と鉄道信号用のリレー信号がともに流れず、該保守用車両の軌道走行状態は、踏切警報音が鳴らず（非鳴動）、かつ遮断機も作動せずに鉄道信号灯が青信号を表示する状態となる。反対に完全短絡位置に切り換えた場合には、前記短絡回路１１には、軌道からの踏切制御用のリレー信号と鉄道信号用のリレー信号がともに流れることとなり、該保守用車両の軌道走行状態は、踏切警報音が鳴り（鳴動）、かつ遮断機も作動して鉄道信号灯が赤信号を表示する状態となるのである。 However, as described above, the conventional railroad crossing warning sound control device is such that all signals simply flow through the short circuit 19 provided between the insulated wheels 2 and 2 of the maintenance vehicle simply by turning on and off the AC power supply 15. It has only been switched to two positions: a short circuit state and an insulation state where no signal flows at all. For this reason, in the insulated position, both the relay signal for railroad crossing control from the track and the relay signal for railroad signal do not flow through the short circuit 11, and a railroad crossing warning sound is generated in the track running state of the maintenance vehicle. (Non-ringing), and the railroad signal lamp displays a green signal without operating the breaker. On the contrary, when switching to the complete short circuit position, both the relay signal for railroad crossing control from the track and the relay signal for the railroad signal flow through the short circuit 11, and the track running state of the maintenance vehicle is as follows. The railroad crossing warning sound sounds (sounds), and the breaker is also activated, so that the railway signal light displays a red signal.
したがって、夜間における騒音対策上、踏切警報音は鳴らしたくないが、安全面では鉄道信号用のリレー信号を活用して、遮断機を作動させるとともに鉄道信号灯には赤信号を表示させるという走行状態、すなわち前記短絡回路１１に踏切制御用のリレー信号は通さず、鉄道信号用のリレー信号のみを通過させるという、保守用車両にとっては最も必要性の高い軌道走行状態を設定することができなかった。 Therefore, for noise countermeasures at night, I do not want to sound a railroad crossing warning sound, but in terms of safety, using a relay signal for railway signals, operating the circuit breaker and displaying a red signal on the railway signal light, That is, it is not possible to set a track running state that is most necessary for a maintenance vehicle in which only a railroad signal relay signal is allowed to pass through the short circuit 11 without passing a railroad crossing control relay signal.
本発明は、従来のこのような問題を解決するためになされたものであり、保守用車両が装備する踏切り警報音制御装置を改良することにより、保守用車両の絶縁車輪間を短絡する短絡回路が従来同様の単純な絶縁状態と完全短絡状態とに切り換えられるだけでなく、軌道に流れる踏切制御用のリレー信号と鉄道信号用のリレー信号のうち、鉄道信号用のリレー信号のみを短絡させる部分短絡状態にも切り換え可能に構成して、踏切警報音は鳴らさずに遮断機のみを作動させ、鉄道信号灯に赤信号を表示させる状態での軌道走行を可能とした保守用車両の踏切り警報音制御装置の提供を目的とする。 The present invention has been made to solve such a conventional problem, and is a short circuit for short-circuiting between insulated wheels of a maintenance vehicle by improving a railroad crossing warning sound control device equipped on the maintenance vehicle. Is not only switched between the simple insulation state and the complete short circuit state as before, but also of the relay signal for railroad crossing control and the relay signal for railroad signal that flows on the track, the part that short-circuits only the relay signal for railroad signal It can be switched even in a short-circuit state, and the railroad crossing warning sound control of the maintenance vehicle that can run on the track with the railroad signal light displaying a red signal without operating the crossing warning sound without sounding the railroad crossing warning sound. The purpose is to provide a device.
上記目的を達成する本発明の保守用車両の踏切り警報音制御装置は、輪軸両端部に絶縁車輪を備える保守用車両の車体側に設けられた交流電源と、該保守用車両の車体側から輪軸に向かって突出し、前記交流電源により励磁される１次コイルと、１次コイルに対向するように輪軸に巻回された２次コイルと、２次コイルに接続されたリレーコイルと、輪軸両端部の絶縁車輪間を短絡する短絡回路に介装されたリレー接点とを備え、前記交流電源のオン・オフにて前記短絡回路のリレー接点を開閉操作することにより、該短絡回路を完全短絡状態と絶縁状態とに切り換えて軌道を流れる鉄道信号用のリレー信号および踏切制御用のリレー信号のオン・オフ制御を行なう保守用車両の踏切り警報音制御装置において、
前記短絡回路に第１のリレー接点および第２のリレー接点を直列に設けるとともに、踏切制御用のリレー信号をカットするフィルタを第２のリレー接点に並列に設け、
前記交流電源として、周波数が異なる第１交流電源および第２交流電源を、第１交流電源の出力信号に第２交流電源の出力信号が重畳されるように設けるとともに、これらの交流電源には、２次コイルに接続され、第１交流電源からの出力信号を通過させる第１のリレーコイルと、同じく２次コイルに接続され、第２交流電源からの重畳信号のみをバンドパスフィルタにて検出し通過させる第２のリレーコイルとを備える受信ユニットを組合せることにより、
第１交流電源のみの通電時においては、前記短絡回路の第１のリレー接点のみが短絡状態となり、該短絡回路にフィルタを通過する軌道からの鉄道信号用のリレー信号のみが流れて踏切制御用のリレー信号がカットされ、第１交流電源と第２交流電源の両通電時においては、前記短絡回路の第１のリレー接点および第２のリレー接点がともに短絡状態となり、該短絡回路に軌道からの鉄道信号用のリレー信号および踏切制御用のリレー信号がともに流れるように構成したことを特徴としている。
A maintenance vehicle level crossing warning sound control apparatus according to the present invention that achieves the above object includes an AC power source provided on a vehicle body side of a maintenance vehicle having insulating wheels at both ends of the wheel shaft, and a wheel shaft from the vehicle body side of the maintenance vehicle. A primary coil that is excited by the AC power source, a secondary coil that is wound around the wheel shaft so as to face the primary coil, a relay coil that is connected to the secondary coil, and both ends of the wheel shaft And a relay contact interposed in a short circuit that short-circuits between the insulated wheels, and by opening and closing the relay contact of the short circuit by turning on and off the AC power supply, the short circuit is completely short-circuited. In a railroad crossing warning sound control device for a maintenance vehicle that performs on / off control of a relay signal for railway signals and a relay signal for railroad crossing control that switches to an insulated state and flows on a track,
A first relay contact and a second relay contact are provided in series in the short circuit, and a filter for cutting a relay signal for crossing control is provided in parallel with the second relay contact.
As the AC power source, a first AC power source and a second AC power source having different frequencies are provided so that an output signal of the second AC power source is superimposed on an output signal of the first AC power source. The first relay coil that is connected to the secondary coil and passes the output signal from the first AC power source, and is also connected to the secondary coil, and only the superimposed signal from the second AC power source is detected by the band pass filter. By combining a receiving unit with a second relay coil to be passed,
When only the first AC power supply is energized, only the first relay contact of the short circuit is short-circuited, and only the relay signal for the railroad signal from the track passing through the filter flows through the short circuit to control the level crossing. When both the first AC power supply and the second AC power supply are energized, both the first relay contact and the second relay contact of the short circuit are short-circuited, and the short circuit is removed from the track. The relay signal for railway signals and the relay signal for level crossing control are configured to flow together.
本発明において、第１交流電源は商用電源であり、第２交流電源は高周波電源である。また、鉄道信号用のリレー信号は低周波信号、踏切制御用のリレー信号は高周波信号であり、踏切制御用のリレー信号をカットするフィルタは、低周波信号のみを通過させるローパスフィルタである。 In the present invention, the first AC power source is a commercial power source, and the second AC power source is a high frequency power source. The railroad signal relay signal is a low-frequency signal, the railroad crossing control relay signal is a high-frequency signal, and the filter that cuts off the railroad crossing control relay signal is a low-pass filter that passes only the low-frequency signal.
上記構成よりなる本発明の保守用車両の踏切り警報音制御装置によれば、保守用車両の車体側に設けられた第１交流電源をオン、第２交流電源をオフに設定すると、該保守用車両の絶縁車輪間を短絡する短絡回路に直列に配置された第１のリレー接点がオン、第２のリレー接点がオフとなり、該短絡回路は、上記第２のリレー接点に並列に配置されたフィルタ（ローパスフィルタ）を通過する軌道からのリレー信号、すなわち低周波の鉄道信号用のリレー信号のみが短絡し、高周波の踏切制御用のリレー信号はカットされる部分短絡状態となる。 According to the railroad crossing warning sound control apparatus for a maintenance vehicle of the present invention having the above-described configuration, when the first AC power source provided on the vehicle body side of the maintenance vehicle is set to ON and the second AC power source is set to OFF, the maintenance vehicle A first relay contact arranged in series with a short circuit that short-circuits the insulated wheels of the vehicle is turned on, a second relay contact is turned off, and the short circuit is arranged in parallel with the second relay contact. Only the relay signal from the track passing through the filter (low-pass filter), that is, the relay signal for the low-frequency railway signal is short-circuited, and the relay signal for high-frequency railroad crossing control is cut off.
したがって、従来のこの種の踏切り警報音制御装置では不可能であった、踏切警報音は鳴らないが遮断機は降りて鉄道信号灯が赤信号を表示するという、静かでかつ安全な状態での保守用車両の軌道走行が可能となる。 Therefore, maintenance in a quiet and safe state in which this kind of conventional level crossing warning sound control device is not possible, the level crossing warning sound does not sound but the breaker goes down and the railway signal light displays a red signal. The vehicle can be run on the track.
以下、本発明の実施形態を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図１は、本発明を実施した保守用車両の踏切り警報音制御装置の一例を示す概略構成図であり、図２は、同装置の回路構成図である。 FIG. 1 is a schematic configuration diagram showing an example of a crossing warning sound control device for a maintenance vehicle in which the present invention is implemented, and FIG. 2 is a circuit configuration diagram of the same device.
図１および図２に示すように、本発明の装置は、輪軸１両端部に絶縁車輪２，２を備える保守用車両の車体側に設けられた第１交流電源３と第２交流電源４。該車体側より輪軸１に向かって突出し、前記第１交流電源３および第２交流電源４により励磁される１次コイル５。１次コイル５に対向するように輪軸１に巻回された２次コイル６。２次コイル６に接続され、第１交流電源３からの信号を通過させる第１のリレーコイル７と、同じく２次コイル６に接続され、バンドパスフィルタ８にて第２交流電源４からの信号のみを通過させる第２のリレーコイル９とを備える受信ユニット１０。前記絶縁車輪２、２間を短絡する短絡回路１１に直列に配置される第１のリレー接点１２と第２のリレー接点１３。上記短絡回路１１に第２のリレー接点１３と並列に配置されるフィルタ１４。これらの部品を必須構成要素として備えている。 As shown in FIGS. 1 and 2, the apparatus of the present invention includes a first AC power source 3 and a second AC power source 4 provided on the vehicle body side of a maintenance vehicle having insulating wheels 2 and 2 at both ends of a wheel shaft 1. A primary coil 5 that protrudes from the vehicle body side toward the wheel shaft 1 and is excited by the first AC power source 3 and the second AC power source 4. A secondary coil wound around the wheel shaft 1 so as to face the primary coil 5. Coil 6. A first relay coil 7 connected to the secondary coil 6 and allowing a signal from the first AC power source 3 to pass therethrough, and also connected to the secondary coil 6, and a second AC power source 4 by a band pass filter 8. And a second relay coil 9 that allows only a signal from the receiver unit 10 to pass therethrough. A first relay contact 12 and a second relay contact 13 arranged in series in a short circuit 11 for short-circuiting the insulating wheels 2 and 2. A filter 14 arranged in parallel with the second relay contact 13 in the short circuit 11. These parts are provided as essential components.
すなわち、保守用車両の輪軸１両端部に取り付けられた左右の絶縁車輪２，２は、その輪心２ａと外輪２ｃ間に環状の絶縁材２ｂを介在させて形成されている。 That is, the left and right insulating wheels 2 and 2 attached to both ends of the wheel shaft 1 of the maintenance vehicle are formed by interposing an annular insulating material 2b between the wheel center 2a and the outer ring 2c.
この保守用車両の車体側には、運転席部分に第１交流電源３と第２交流電源４とが並べて設置してある。図示例の第１交流電源３は、インバータ制御により２４ボルトの直流を、１１５ボルト５０Ｈｚの正弦波交流信号に変換し、出力するものである。また第２交流電源４は、図３に示すように、前記第１交流電源３の出力する正弦波交流信号Ｓ1 とは異なる高周波の正弦波交流信号（図示例では５ＫＨZ ）Ｓ2 を、第１交流電源の出力する正弦波交流信号Ｓ1 に重畳する形で出力するものである。 On the vehicle body side of the maintenance vehicle, a first AC power source 3 and a second AC power source 4 are installed side by side at the driver's seat. The illustrated first AC power supply 3 converts 24 volt DC into 115 volt 50 Hz sine wave AC signal by inverter control and outputs it. Further, as shown in FIG. 3, the second AC power source 4 generates a high-frequency sine wave AC signal (5 KH Z in the illustrated example) S 2 different from the sine wave AC signal S 1 output from the first AC power source 3. The signal is output in a form superimposed on the sine wave AC signal S 1 output from the first AC power source.
第１交流電源３と第２交流電源４の双方に接続されている１次コイル５は、保守用車両の車体底部に輪軸１に対して平行に固定してある。また２次コイル６は、輪軸１の上記１次コイル５との対向位置外周面にコイルを巻回して設けてあり、１次コイル５との間には一定の空隙Ｇ（図示例では１５ｍｍ程度）が設けられている。１次コイル５は、第１交流電源３および第２交流電源４からの正弦波交流信号Ｓ1 ，Ｓ2 が印加されると励磁され、上記空隙Ｇを介して輪軸１を軸方向に通過する磁束を発生する。２次コイル６は、この磁束との電磁誘導作用により、所要電圧の起電力を発生する。 The primary coil 5 connected to both the first AC power source 3 and the second AC power source 4 is fixed in parallel to the wheel shaft 1 at the bottom of the vehicle body of the maintenance vehicle. The secondary coil 6 is provided by winding a coil around the outer peripheral surface of the wheel shaft 1 facing the primary coil 5, and has a certain gap G (about 15 mm in the illustrated example) between the primary coil 5. ) Is provided. The primary coil 5 is excited when sine wave AC signals S 1 and S 2 from the first AC power source 3 and the second AC power source 4 are applied, and passes through the wheel shaft 1 in the axial direction through the gap G. Generate magnetic flux. The secondary coil 6 generates an electromotive force of a required voltage by electromagnetic induction action with this magnetic flux.
上記２次コイル６には、受信ユニット１０が接続してある。この受信ユニット１０は、第１のリレーコイル７と、第２のリレーコイル９とを備えている。第１のリレーコイル７は、２次コイル６を介して出力される前記第１交流電源３からの正弦波交流信号Ｓ1 を通過させ、所要出力に増幅して後述する第１のリレー接点１２を作動させるものである。また第２のリレーコイル９は、２次コイル６を介して前記第１の交流信号Ｓ1 に重畳されて出力される第２交流電源４からの高周波交流信号Ｓ2 のみをバンドパスフィルタ８により検出して通過させ、所要出力に増幅して後述する第２のリレー接点１３を作動させるものである。 A receiving unit 10 is connected to the secondary coil 6. The receiving unit 10 includes a first relay coil 7 and a second relay coil 9. The first relay coil 7 passes the sine wave AC signal S 1 from the first AC power source 3 output via the secondary coil 6, amplifies it to a required output, and a first relay contact 12 described later. Is to operate. The second relay coil 9 uses the band-pass filter 8 to output only the high-frequency AC signal S 2 from the second AC power source 4 that is superimposed on the first AC signal S 1 and output via the secondary coil 6. This is detected and passed, amplified to a required output, and a second relay contact 13 described later is operated.
短絡回路１１は、保守用車両の前記左右の絶縁車輪２，２間を短絡する回路である。この短絡回路１１には、第１のリレー接点１２と第２のリレー接点１３とが直列に配置してあり、フィルタ１４が、上記第２のリレー接点１３と並列に配置されている。 The short circuit 11 is a circuit for short-circuiting the left and right insulating wheels 2 and 2 of the maintenance vehicle. In the short circuit 11, a first relay contact 12 and a second relay contact 13 are arranged in series, and a filter 14 is arranged in parallel with the second relay contact 13.
第１のリレー接点１２は、前記第１のリレーコイル７からの出力信号によりオン作動して、短絡回路１１を短絡させるものである。第２のリレー接点１３は、前記第２のリレーコイル９からの出力信号によりオン作動して、短絡回路１１を短絡させるものである。またフィルタ１４は、低周波信号のみを通過させる所謂ローパスフィルタであり、第２のリレー接点１３のオフ時において、短絡回路１１に低周波の鉄道信号用のリレー信号のみを通過させ、高周波の踏切制御用のリレー信号をカットするためのものである。 The first relay contact 12 is turned on by an output signal from the first relay coil 7 to short-circuit the short circuit 11. The second relay contact 13 is turned on by an output signal from the second relay coil 9 to short-circuit the short circuit 11. The filter 14 is a so-called low-pass filter that allows only a low-frequency signal to pass. When the second relay contact 13 is turned off, the filter 14 allows only a relay signal for a low-frequency railway signal to pass through the short-circuit 11. This is for cutting the relay signal for control.
なお、第１のリレー接点１２は第２のリレー接点１３のインターロックとなっている。すなわち、第１のリレー接点１２がオンしていないと、第２のリレー接点１３はオンしない。また、両方のリレー接点１２，１３がともにオン中でも、第１のリレー接点１２がオフすれば、第２のリレー接点１３もオフとなるのである。 The first relay contact 12 is an interlock of the second relay contact 13. That is, if the first relay contact 12 is not turned on, the second relay contact 13 is not turned on. Moreover, even if both the relay contacts 12 and 13 are both on, if the first relay contact 12 is turned off, the second relay contact 13 is also turned off.
上記構成よりなる本発明の踏切り警報音制御装置は、第１交流電源３および第２交流電源４がともにオフの状態では、保守用車両の絶縁車輪２，２間を短絡する短絡回路１１の第１および第２のリレー接点１２，１３がともに作動せずオフとなる。したがって、該短絡回路１１は、軌道からの踏切制御用のリレー信号および鉄道信号用のリレー信号が全く流れない絶縁状態となる。 The railroad crossing warning sound control apparatus of the present invention having the above-described configuration is provided with the first short circuit 11 for short-circuiting between the insulated wheels 2 and 2 of the maintenance vehicle when both the first AC power supply 3 and the second AC power supply 4 are off. Both the first and second relay contacts 12 and 13 do not operate and are turned off. Therefore, the short circuit 11 is in an insulated state in which a relay signal for railroad crossing control from the track and a relay signal for railway signals do not flow at all.
また、第１交流電源３および第２交流電源４の両方をオンにすると、前記短絡回路１１の第１および第２のリレー接点１２，１３がともに作動してオンとなる。したがって、該短絡回路１１は、軌道からの踏切制御用のリレー信号および鉄道信号用のリレー信号がともに流れる完全短絡状態となる。 When both the first AC power supply 3 and the second AC power supply 4 are turned on, both the first and second relay contacts 12 and 13 of the short circuit 11 are activated and turned on. Therefore, the short circuit 11 becomes a complete short circuit state in which both a relay signal for railroad crossing control from the track and a relay signal for railway signals flow.
そして、第１交流電源をオン、第２交流電源４をオフにすると、前記短絡回路１１の第１のリレー接点１２がオン、第２のリレー接点１３がオフとなる。したがって、該短絡回路１１は、フィルタ（ローパスフィルタ）１４を通過する信号、すなわち軌道からの低周波の鉄道信号用のリレー信号のみが通過し、高周波の踏切制御用のリレー信号はカットされる部分短絡状態となる。この部分短絡状態にあらかじめ設定しておくことにより、踏切り位置において踏切警報音は鳴らずに遮断機のみが降りて鉄道信号灯が赤信号を表示するという、静かでかつ安全な状態での保守用車両の軌道走行を行なうことができる。 When the first AC power supply is turned on and the second AC power supply 4 is turned off, the first relay contact 12 of the short circuit 11 is turned on and the second relay contact 13 is turned off. Accordingly, in the short circuit 11, only the signal passing through the filter (low-pass filter) 14, that is, the relay signal for low-frequency railway signals from the track passes, and the relay signal for high-frequency railroad crossing control is cut off. A short circuit occurs. By setting this partial short-circuit state in advance, the vehicle for maintenance in a quiet and safe state where the railroad crossing warning light does not sound at the railroad 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.
１ 輪軸
２ 絶縁車輪
３ 第１交流電源
４ 第２交流電源
５ １次コイル
６ ２次コイル
７ 第１のリレーコイル
８ バンドパスフィルタ
９ 第２のリレーコイル
１０ 受信ユニット
１１ 短絡回路
１２ 第１のリレー接点
１３ 第２のリレー接点
１４ フィルタ（ローパスフィルタ）
DESCRIPTION OF SYMBOLS 1 Wheel shaft 2 Insulated wheel 3 1st alternating current power supply 4 2nd alternating current power supply 5 Primary coil 6 Secondary coil 7 1st relay coil 8 Band pass filter 9 2nd relay coil 10 Reception unit 11 Short circuit 12 1st relay Contact 13 Second relay contact 14 Filter (low-pass filter)
Claims (3)
前記短絡回路に第１のリレー接点および第２のリレー接点を直列に設けるとともに、踏切制御用のリレー信号をカットするフィルタを第２のリレー接点に並列に設け、
前記交流電源として、周波数が異なる第１交流電源および第２交流電源を、第１交流電源の出力信号に第２交流電源の出力信号が重畳されるように設けるとともに、これらの交流電源には、２次コイルに接続され、第１交流電源からの出力信号を通過させる第１のリレーコイルと、同じく２次コイルに接続され、第２交流電源からの重畳信号のみをバンドパスフィルタにて検出し通過させる第２のリレーコイルとを備える受信ユニットを組合せることにより、
第１交流電源のみの通電時においては、前記短絡回路の第１のリレー接点のみが短絡状態となり、該短絡回路にフィルタを通過する軌道からの鉄道信号用のリレー信号のみが流れて踏切制御用のリレー信号がカットされ、第１交流電源と第２交流電源の両通電時においては、前記短絡回路の第１のリレー接点および第２のリレー接点がともに短絡状態となり、該短絡回路に軌道からの鉄道信号用のリレー信号および踏切制御用のリレー信号がともに流れるように構成したことを特徴とする保守用車両の踏切り警報音制御装置。 An AC power source provided on the vehicle body side of a maintenance vehicle having insulating wheels at both ends of the wheel shaft, a primary coil projecting from the vehicle body side of the maintenance vehicle toward the wheel shaft and excited by the AC power source, and a primary A secondary coil wound around the wheel shaft so as to face the coil, a relay coil connected to the secondary coil, and a relay contact interposed in a short circuit that short-circuits the insulated wheels at both ends of the wheel shaft By switching the relay contact of the short circuit by turning on and off the AC power supply, the short circuit is switched between a complete short circuit state and an insulation state, and the relay signal for railroad signals flowing on the track and for crossing control In a railroad crossing warning sound control device for a maintenance vehicle that performs on / off control of a relay signal of
A first relay contact and a second relay contact are provided in series in the short circuit, and a filter for cutting a relay signal for crossing control is provided in parallel with the second relay contact.
As the AC power source, a first AC power source and a second AC power source having different frequencies are provided so that an output signal of the second AC power source is superimposed on an output signal of the first AC power source. The first relay coil that is connected to the secondary coil and passes the output signal from the first AC power source, and is also connected to the secondary coil, and only the superimposed signal from the second AC power source is detected by the band pass filter. By combining a receiving unit with a second relay coil to be passed,
When only the first AC power supply is energized, only the first relay contact of the short circuit is short-circuited, and only the relay signal for the railroad signal from the track passing through the filter flows through the short circuit to control the level crossing. When both the first AC power supply and the second AC power supply are energized, both the first relay contact and the second relay contact of the short circuit are short-circuited, and the short circuit is removed from the track. A railroad crossing warning sound control device for a maintenance vehicle, characterized in that a relay signal for railroad signals and a relay signal for railroad crossing control flow together.
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| JP4229493B2 (en) * | 1998-08-04 | 2009-02-25 | 住金関西工業株式会社 | Conducting device for insulated wheels for track maintenance vehicles |
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