JP2007082320A - Rotating mechanism of asymmetric pantograph - Google Patents

Rotating mechanism of asymmetric pantograph Download PDF

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JP2007082320A
JP2007082320A JP2005266384A JP2005266384A JP2007082320A JP 2007082320 A JP2007082320 A JP 2007082320A JP 2005266384 A JP2005266384 A JP 2005266384A JP 2005266384 A JP2005266384 A JP 2005266384A JP 2007082320 A JP2007082320 A JP 2007082320A
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pantograph
asymmetric
conductive
rotation
rotating
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JP4478090B2 (en
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Hitoshi Nagasaka
整 長坂
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Railway Technical Research Institute
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an air lubrication bearing having a rigid and simple constitution, in a rotating mechanism that changes the direction of an asymmetric pantograph. <P>SOLUTION: The rotating mechanism of the asymmetric pantograph is constituted of a conductive upper-part rotating board 1, to which a rotating shaft 3 is fixed at the center of the lower surface, and the asymmetric pantograph 7 is attached to the upper face; a conductive lower-part fixing board 2 in which the conductive upper-part rotating board 1 is seated by making the rotating shaft 3 rotatably penetrate a penetration hole 2a formed at the center; a pressure feed tube 4 that feeds compressed air between the lower face of the conductive upper-part rotating board 1 and the upper face of the conductive lower-part fixing board 2; and a motion converting mechanism 5, such as a pinion/rack mechanism that rotatively drives the rotating shaft 3 of the conductive upper-part rotating board 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は鉄道車両用集電装置であって車両の前後方向について非対称な形状の非対称型パンタグラフの回転機構に関する。 The present invention relates to a railway vehicle current collector and relates to a rotation mechanism of an asymmetric pantograph having an asymmetric shape with respect to the longitudinal direction of the vehicle.

高速列車用のパンタグラフは空力的な騒音を小さくするために形状が工夫されており、その多くは前後非対称の形状である。現状では前後両方向に走行できるように作られているが、走行方向によってその空力特性と空力騒音の大きさは異なる。将来的にはより一層の低騒音化を図るため、一方向のみの使用に限定したパンタグラフが作られる可能性がある。このような一方向だけに使用されるパンタグラフを営業列車に搭載する場合、車両の屋根上に前後別の方向に２つのパンタグラフを搭載するか、パンタグラフを回転して走行方向に応じた向きを転換する回転機構が必要である。 Pantographs for high-speed trains are devised in order to reduce aerodynamic noise, and many of them are asymmetrical in the longitudinal direction. Currently, the vehicle is designed to be able to travel in both the front and rear directions, but the aerodynamic characteristics and the aerodynamic noise level differ depending on the traveling direction. In the future, in order to further reduce noise, there is a possibility that a pantograph limited to use in only one direction may be made. When mounting a pantograph that is used only in one direction on a commercial train, install two pantographs in different directions on the roof of the vehicle, or rotate the pantograph to change the direction according to the direction of travel. A rotating mechanism is required.

実開平５−５５７０４（特許文献１）には、台枠を上台枠と下台枠の二階建ての構成とし、上台枠上に非対称パンタグラフを取付け、この上台枠を回転装置で支持し、前記回転装置を絶縁碍子に固定した前記下台枠に取付けた非対称型パンタグラフの回転機構が開示されている。前記回転装置は、エアシリンダとピストンと前記ピストンを選択的に左右に移動させる圧縮空気供給手段とで構成された空気アクチュエータと、前記ピストンに固定されたラックと、前記ラックと噛み合うピニオンとで構成されている。そして、前記ピニオンは前記上台枠の回転軸の端部に固定されている。このような構成によって、この従来の非対称型パンタグラフの回転機構は、パンタグラフの方向転換時に非対称型パンタグラフを１８０度回転させることができるものである。パンタグラフ１台当たり数百アンペアから千アンペア程度の大電流を架線から車両に供給している新幹線のような高速鉄道車両に設置されて、パンタグラフを回転して走行方向に応じた向きを転換する回転機構である。   In Japanese Utility Model Laid-Open No. 5-55704 (Patent Document 1), the frame has a two-story structure of an upper frame and a lower frame, an asymmetric pantograph is mounted on the upper frame, and the upper frame is supported by a rotation device. A rotating mechanism of an asymmetrical pantograph attached to the lower frame fixed to an insulator is disclosed. The rotating device includes an air actuator including a pneumatic cylinder, a piston, and a compressed air supply unit that selectively moves the piston to the left and right, a rack fixed to the piston, and a pinion that meshes with the rack. Has been. And the said pinion is being fixed to the edge part of the rotating shaft of the said upper frame. With this configuration, this conventional asymmetric pantograph rotation mechanism can rotate the asymmetric pantograph 180 degrees when the direction of the pantograph is changed. A pantograph is installed in a high-speed railway vehicle such as the Shinkansen that supplies a large current of several hundred amperes to a thousand amperes per vehicle, and the pantograph rotates to change the direction according to the direction of travel. Mechanism.

上述の従来の非対称型パンタグラフの回転機構は、上面に非対称型パンタグラフが取付けられた回転部である上台枠と、前記回転部を回転自在に支持する固定部である回転装置と、前記回転装置を絶縁碍子に固定した固定部である下台枠に取付けた非対称型パンタグラフの回転機構である。ところが、非対称型パンタグラフの回転機構を実用化する上の重要なポイントである前記上台枠と前記回転装置を結合する軸と軸受の構造が、特許文献１に開示も示唆もない。   The conventional asymmetric pantograph rotating mechanism described above includes an upper frame that is a rotating part having an asymmetrical pantograph attached to the upper surface, a rotating device that is a fixed part that rotatably supports the rotating part, and the rotating device. It is the rotation mechanism of the asymmetrical pantograph attached to the lower base frame which is a fixed part fixed to the insulator. However, Patent Document 1 neither discloses nor suggests the structure of the shaft and the bearing connecting the upper frame and the rotating device, which is an important point in putting the rotating mechanism of the asymmetrical pantograph into practical use.

そこで、鉄道分野で広く使われている油潤滑軸受を、回転部と固定部の間の軸受に採用することを考えてみると、次のような問題があることが分かった。一般に、油潤滑軸受では、軸受に電流を流すとその電流による潤滑油の損傷または軸受接触面の電食によって軸受が損傷する。従って、一般に使用される油潤滑軸受を、上述の従来の非対称型パンタグラフの回転機構の軸受にそのまま採用することはできない。軸受の箇所以外を避けてケーブルによる通電経路を形成すれば、油潤滑軸受の採用も可能であるが、一般に大電流を流すことができるケーブルは直径が太く、可撓性はきわめて低いので、頻繁にケーブルを動かすことはケーブルの耐久性を損なうことになる。更に、ケーブルは車体に対して十分な絶縁性を確保しなければならない。これらの問題があるので、上述の従来の非対称型パンタグラフの回転機構において、回転部と固定部との間の通電経路をケーブルによって確保することは容易ではない。
実開平５−５５７０４ Therefore, considering the use of oil-lubricated bearings widely used in the railway field for the bearings between the rotating part and the fixed part, it was found that there are the following problems. In general, in an oil-lubricated bearing, when a current is passed through the bearing, the bearing is damaged by damage of the lubricating oil due to the current or by electrolytic corrosion of the bearing contact surface. Therefore, a generally used oil lubricated bearing cannot be used as it is for the conventional asymmetric pantograph rotation mechanism. Oil-lubricated bearings can be used if the current-carrying path is formed by avoiding the parts other than the bearings, but cables that can carry large currents generally have a large diameter and very low flexibility. Moving the cable into the cable will impair the durability of the cable. Furthermore, the cable must ensure sufficient insulation with respect to the vehicle body. Because of these problems, it is not easy to secure a current-carrying path between the rotating part and the fixed part with a cable in the conventional asymmetric pantograph rotating mechanism described above.
5-55704

本発明が解決しようとする第１の課題は、パンタグラフが取付けられた回転部を方向転換時に固定部に対して１８０度回転させる非対称型パンタグラフの回転機構において、前記回転部を安定的に且つ円滑に回転させる堅牢で簡単な構成の軸受を備えた非対称型パンタグラフの回転機構を提供することである。
本発明が解決しようとする第２の課題は、パンタグラフが取付けられた回転部を方向転換時に固定部に対して１８０度回転させる非対称型パンタグラフの回転機構において、走行中に前記回転部と前記固定部との間に大電流を流すことが可能な非対称型パンタグラフの回転機構を提供することである。
本発明が解決しようとする第３の課題は、パンタグラフが取付けられた回転部を方向転換時に固定部に対して１８０度回転させる非対称型パンタグラフの回転機構において、パンタグラフから車両の電動機などの電気装置までの集電ケーブルを損傷しないようにした非対称型パンタグラフの回転機構を提供することである。 The first problem to be solved by the present invention is that in a rotating mechanism of an asymmetrical pantograph that rotates the rotating part to which the pantograph is attached by 180 degrees with respect to the fixed part when the direction is changed, the rotating part is stably and smoothly operated. An asymmetric pantograph rotation mechanism having a robust and simple structure bearing that rotates in a straight line is provided.
A second problem to be solved by the present invention is a rotating mechanism of an asymmetrical pantograph that rotates the rotating part to which the pantograph is attached by 180 degrees with respect to the fixing part when the direction is changed. It is to provide a rotating mechanism of an asymmetric pantograph capable of flowing a large current between the two parts.
A third problem to be solved by the present invention is an asymmetrical pantograph rotating mechanism that rotates a rotating part to which a pantograph is attached by 180 degrees with respect to a fixed part at the time of turning. It is an object of the present invention to provide an asymmetric pantograph rotation mechanism that prevents damage to the current collecting cable.

上記課題を解決するために、下面の中心部に回転軸が固着され且つ上面に非対称型パンタグラフが取付けられた上部回転盤と、中心部に設けられた貫通穴に前記回転軸を回転自在に貫挿させ、且つ前記上部回転盤が通常時には回転固定手段によって回転しないようにして着座する下部固定盤と、前記非対称型パンタグラフの方向転換時に前記上部回転盤の下面と前記下部固定盤の上面との間に圧縮空気を供給して空気潤滑軸受を形成させる圧縮空気供給手段と、前記回転軸を介して前記上部回転盤を回転させる回転駆動手段とで、非対称型パンタグラフの回転機構を構成した。   In order to solve the above-described problems, an upper rotating plate having a rotating shaft fixed to the center portion of the lower surface and an asymmetric pantograph attached to the upper surface, and a through hole provided in the central portion, the rotating shaft is rotatably passed through. A lower fixed platen that is inserted so that the upper rotary plate is not normally rotated by a rotation fixing unit, and a lower surface of the upper rotary plate and an upper surface of the lower fixed platen when the direction of the asymmetric pantograph is changed. A rotating mechanism of the asymmetrical pantograph is constituted by compressed air supplying means for supplying compressed air between them to form an air lubricated bearing and rotation driving means for rotating the upper rotating disk via the rotating shaft.

本発明により、上部回転盤と下部固定盤と圧縮空気供給手段とで構成された堅牢で簡単な構造の非対称型パンタグラフの回転機構の空気潤滑軸受が提供された。従って、前記空気潤滑軸受を備えた非対称型パンタグラフの回転機構は、非対称型パンタグラフの方向転換を安定的に且つ円滑に行えるようになった。また、前記空気潤滑軸受を備えた非対称型パンタグラフの回転機構は、通常時には上部回転盤を下部固定盤に対してロックする回転固定手段を備えているので、走行時の非対称型パンタグラフの姿勢は安定する。更に、上部回転盤と下部固定盤を導電性材料で構成した本発明に係る非対称型パンタグラフの回転機構は、パンタグラフから車両の電動機などの電気装置までの集電ケーブルに方向転換時に捻りや曲げが生じないので、集電ケーブルの損傷がなくなった。   According to the present invention, there is provided an air-lubricated bearing for a rotating mechanism of an asymmetric pantograph having a robust and simple structure, which includes an upper rotating disk, a lower fixed disk, and compressed air supply means. Therefore, the rotating mechanism of the asymmetric pantograph provided with the air-lubricated bearing can stably and smoothly change the direction of the asymmetric pantograph. In addition, since the rotation mechanism of the asymmetric pantograph having the air-lubricated bearing normally includes a rotation fixing means for locking the upper rotating disk with respect to the lower fixed disk, the asymmetric pantograph has a stable posture during traveling. To do. Furthermore, the rotating mechanism of the asymmetrical pantograph according to the present invention in which the upper rotating plate and the lower fixed plate are made of a conductive material is not twisted or bent when the direction is changed to the current collecting cable from the pantograph to an electric device such as a motor of a vehicle. Since it does not occur, the current collecting cable is no longer damaged.

本発明に係る非対称型パンタグラフの回転機構は、下面の中心部に回転軸が固着され且つ上面に非対称型パンタグラフが直接取付けられた導電性上部回転盤と、中心部に設けられた貫通穴に前記回転軸を回転自在に貫挿させて前記導電性上部回転盤が通常時には回転しないようにロックして着座する導電性下部固定盤と、前記非対称型パンタグラフの方向転換時に前記上部回転盤の下面と前記下部固定盤の上面との間に圧縮空気を供給して空気潤滑軸受を形成させる圧縮空気供給手段と、前記回転軸を介して前記導電性上部回転盤を回転させる回転駆動手段とで構成されている。そして、集電ケーブルの一端は、前記導電性下部固定盤に接続されている。 The rotating mechanism of the asymmetric pantograph according to the present invention includes a conductive upper rotating disk having a rotating shaft fixed to the center of the lower surface and an asymmetric pantograph directly attached to the upper surface, and a through hole provided in the center. A conductive lower fixed plate that is locked so as to prevent rotation of the conductive upper turntable so that the conductive upper turntable does not rotate normally, and a lower surface of the upper turntable when changing the direction of the asymmetric pantograph Compressed air supply means for supplying compressed air to the upper surface of the lower fixed platen to form an air-lubricated bearing, and rotation driving means for rotating the conductive upper rotating plate via the rotating shaft. ing. One end of the current collecting cable is connected to the conductive lower fixed platen.

本発明の実施例１は、図１に示す如く、下面の中心部に回転軸３が突設された且つ上面に非対称型パンタグラフ１０が取付けられた導電性上部回転盤１と、中心部に設けられた貫通穴２ａに回転軸３を回転自在に貫挿させ、且つ導電性上部回転盤１が通常時には回転固定手段によって回転しないようにして着座する導電性下部固定盤２と、非対称型パンタグラフ１０の方向転換時に導電性上部回転盤１の下面と導電性下部固定盤の上面との間に圧縮空気を供給して空気潤滑軸受を形成させる圧縮空気供給手段と、回転軸３を介して導電性上部回転盤を回転させる回転駆動手段とで構成された対称型パンタグラフの回転機構である。導電性下部固定盤２は、絶縁碍子９によって電車の車体１２から電気的に絶縁された支持基台７の上に固定されている。 As shown in FIG. 1, the first embodiment of the present invention is provided with a conductive upper rotating disk 1 having a rotating shaft 3 protruding from the center of the lower surface and an asymmetric pantograph 10 attached to the upper surface, and a central portion. A conductive lower fixed platen 2 in which the rotary shaft 3 is rotatably inserted into the through-hole 2a and the conductive upper rotary platen 1 is normally seated so as not to be rotated by the rotary fixing means; and an asymmetric pantograph 10 Compressed air supply means for supplying compressed air between the lower surface of the conductive upper rotating disk 1 and the upper surface of the conductive lower fixed disk at the time of changing the direction and forming an air-lubricated bearing; It is a rotation mechanism of a symmetric type pantograph comprised with the rotation drive means which rotates an upper turntable. The conductive lower fixed platen 2 is fixed on a support base 7 that is electrically insulated from the vehicle body 12 of the train by an insulator 9.

前記圧縮空気供給手段は、電車の車体１２に配置されている図示しない圧縮空気源から複数の圧力供給管４を介して、導電性上部回転盤１の下面と導電性下部固定盤の上面との間に圧縮空気を供給する手段である。 The compressed air supply means connects a lower surface of the conductive upper rotating disk 1 and an upper surface of the conductive lower fixed disk through a plurality of pressure supply pipes 4 from a compressed air source (not shown) disposed in the car body 12 of the train. Means for supplying compressed air between them.

前記回転固定手段は、電車の車体１２に配置されている図示しない真空圧源から複数の圧力供給管４を介して、導電性上部回転盤１の下面と導電性下部固定盤の上面との間に真空圧を供給する手段である。 The rotation fixing means is provided between the lower surface of the conductive upper rotating disk 1 and the upper surface of the conductive lower fixing disk via a plurality of pressure supply pipes 4 from a vacuum pressure source (not shown) disposed on the vehicle body 12 of the train. Means for supplying a vacuum pressure to the.

前記圧縮空気供給手段と前記回転固定手段は、複数の圧力供給管４を共用しており、前記複数の圧力供給管４は通常時には前記真空圧源に切替え、対称型パンタグラフの方向転換時には前記圧縮空気源に切替えられて使用されるのである。 The compressed air supply means and the rotation fixing means share a plurality of pressure supply pipes 4. The plurality of pressure supply pipes 4 are normally switched to the vacuum pressure source, and the compression is performed when the symmetric pantograph is turned. It is used by switching to an air source.

前記回転駆動手段は、支持基台７の取り付けられた空気アクチュエータ６と運動変換機構５とで構成されている。運動変換機構５は、空気アクチュエータ６のピストンで直線駆動されるラックと、前記ラックと噛み合うピニオンとで構成されている。前記ピニオンは導電性上部回転盤１の回転軸３の下端に固着されている。空気アクチュエータ６には、電車の車体１２に配置されている図示しない圧縮空気源から、一対の圧縮空気供給管８を介して駆動用圧縮空気が供給される。   The rotation driving means is composed of an air actuator 6 to which a support base 7 is attached and a motion conversion mechanism 5. The motion conversion mechanism 5 includes a rack that is linearly driven by a piston of the air actuator 6 and a pinion that meshes with the rack. The pinion is fixed to the lower end of the rotating shaft 3 of the conductive upper rotating disk 1. Compressed air for driving is supplied to the air actuator 6 through a pair of compressed air supply pipes 8 from a compressed air source (not shown) disposed in the vehicle body 12 of the train.

実施例１の非対称型パンタグラフの回転機構において、通常時には導電性上部回転盤１は回転固定手段によって回転しないようにして導電性下部固定盤２に着座している。前記回転固定手段は、通常時に導電性上部回転盤１の下面と導電性下部固定盤２の上面との間に負圧を供給する負圧供給手段である。図２（Ａ）と図３（Ａ）は、通常時に矢印の方向に負圧が加えられて、導電性上部回転盤１の下面と導電性下部固定盤２の上面は隙間が無い程に密着している状態を拡大して示したものである。非対称型パンタグラフと導電性上部回転盤１の自重による着座だけでなく、負圧による密着効果があるので、通常時には導電性上部回転盤１は回転しないようにして導電性下部固定盤２に安定して着座している。   In the rotating mechanism of the asymmetric pantograph of the first embodiment, the conductive upper rotating disk 1 is normally seated on the conductive lower fixing disk 2 so as not to rotate by the rotation fixing means. The rotation fixing means is a negative pressure supply means for supplying a negative pressure between the lower surface of the conductive upper rotating disk 1 and the upper surface of the conductive lower fixing disk 2 at a normal time. 2A and 3A, a negative pressure is normally applied in the direction of the arrow, and the lower surface of the conductive upper rotating plate 1 and the upper surface of the conductive lower fixed plate 2 are in close contact so that there is no gap. This is an enlarged view of the current state. Since the asymmetric pantograph and the conductive upper rotating disk 1 are not only seated by their own weight, but also have a close contact effect due to negative pressure, the conductive upper rotating disk 1 is normally stabilized on the conductive lower fixed disk 2 so as not to rotate. Sitting.

通常時に導電性上部回転盤１が回転しないようにして導電性下部固定盤２に安定的に着座するのを更に確実にするために、図３に示す如く、ロックピン１４を用いることもできる。ロックピン１４はヘッド付ピンであって、導電性上部回転盤１に設けられたロック用貫通穴１ａに自在に上下可能なように挿入されている。ロック用貫通穴１ａは、導電性下部固定盤２に設けられている圧縮空気供給用圧力供給管４の開口に一つに対向する位置に設けられている。 In order to further ensure that the conductive upper rotating plate 1 does not rotate during normal times and is stably seated on the conductive lower fixed plate 2, a lock pin 14 can be used as shown in FIG. The lock pin 14 is a pin with a head, and is inserted into a lock through hole 1 a provided in the conductive upper rotating disk 1 so as to freely move up and down. The lock through hole 1 a is provided at a position facing the opening of the compressed air supply pressure supply pipe 4 provided in the conductive lower fixed platen 2.

ロックピン１４は、通常時には図３（Ａ）に示す如く、自重によって落下し、その先端はロック用貫通穴１ａを介して圧縮空気供給用圧力供給管４内に達している。従って、導電性上部回転盤１の回転はロックされる。また、ロックピン１４は、非対称型パンタグラフの方向転換時には、図３（Ｂ）に示す如く、圧縮空気供給用圧力供給管４からの圧縮空気によって上方に持ち上げられ、その先端はロック用貫通穴１ａから充分に脱出している。従って、導電性上部回転盤１の回転はアンロックされる。 As shown in FIG. 3A, the lock pin 14 normally drops due to its own weight, and the tip of the lock pin 14 reaches the compressed air supply pressure supply pipe 4 through the lock through hole 1a. Accordingly, the rotation of the conductive upper rotating disk 1 is locked. When the direction of the asymmetric pantograph is changed, the lock pin 14 is lifted upward by the compressed air from the compressed air supply pressure supply pipe 4 as shown in FIG. 3B, and the tip of the lock pin 14 is at the lock through hole 1a. Escape enough from. Accordingly, the rotation of the conductive upper rotating disk 1 is unlocked.

非対称型パンタグラフ１０は、集電舟１０ａ、集電舟１０ａが架線１２に所定の圧力で接触するように支持するアーム１０ｂと主軸１０ｃ、及び主軸１０ｃを支持すると共に、非対称型パンタグラフ１０を導電性上部回転盤１の上面に固定する連結部材１０ｄとで構成されている。集電舟１０ａを架線１２に所定の圧力で接触させるための機構には、従来のパンタグラフ上昇・下降機構が採用されているが、説明を複雑にしないために省略されている。   The asymmetric pantograph 10 supports the current collecting boat 10a, the arm 10b that supports the current collecting boat 10a so as to contact the overhead wire 12 with a predetermined pressure, the main shaft 10c, and the main shaft 10c. It is comprised with the connection member 10d fixed to the upper surface of the upper rotating disk 1. As shown in FIG. As a mechanism for bringing the current collecting boat 10a into contact with the overhead wire 12 with a predetermined pressure, a conventional pantograph ascending / descending mechanism is employed, but is omitted for the sake of simplicity.

集電ケーブル１１は、その一端が導電性下部固定盤２に接続され、その他端は電車の車体１２内に配置されている電気装置に接続されている。従って、架線１２から非対称型パンタグラフ１０、導電性上部回転盤１、導電性下部固定盤２、集電ケーブル１１を順に介して、電車の車体１２内に配置されている電気装置に数百アンペアから千アンペアもの大電流が流れる。集電ケーブル１１は、固定部材である導電性下部固定盤２に接続されているので、非対称型パンタグラフ１０を１８０度回転させて方向転換しても、捩れや曲がりが生じることがない。なお、集電ケーブル１１は、説明を分かり易くするために露出して示してあるが、絶縁碍子９又はケーブルヘッドと呼ばれる専用の絶縁碍子を貫通して電車の車体１２内に引き込まれている。 One end of the current collecting cable 11 is connected to the conductive lower fixed platen 2, and the other end is connected to an electric device arranged in the car body 12 of the train. Accordingly, from the overhead line 12 to the electric device arranged in the train body 12 through the asymmetric pantograph 10, the conductive upper rotating disk 1, the conductive lower fixed board 2, and the current collecting cable 11 in order, from several hundred amperes. A large current of 1,000 amperes flows. Since the current collecting cable 11 is connected to the conductive lower fixed platen 2 which is a fixing member, even if the asymmetric pantograph 10 is rotated 180 degrees to change the direction, no twisting or bending occurs. Note that the current collecting cable 11 is exposed and shown for easy understanding, but is drawn into the vehicle body 12 of the train through the insulator 9 or a dedicated insulator called a cable head.

実施例１の非対称型パンタグラフの回転機構は、方向転換時には次の如く機能する。即ち、車両が終着駅に到着すると、図示しないパンタグラフ上昇・下降機構によって集電舟１０ａは架線１２から離される。続いて、複数の圧力供給管４を真空圧源から圧縮空気源に切替え、導電性上部回転盤１の下面と導電性下部固定盤２の上面との間には圧力供給管４から圧縮空気が供給され、導電性上部回転盤１の下面と導電性下部固定盤２の上面との間を経て外に吹き出す。このため導電性上部回転盤１は導電性下部固定盤２から微小間隔ｄだけ浮き上がる。微小間隔ｄは数１０ミクロンから数１００ミクロン程度である。この状態で、空気アクチュエータ６には、電車の車体１２に配置されている図示しない圧縮空気源から、一対の圧縮空気供給管８を介して駆動用圧縮空気が供給される。これにより、空気アクチュエータ６は、ラックとピニオンからなる運動変換機構５を介して導電性上部回転盤１を１８０度回転させ、非対称型パンタグラフ１０の方向転換を行う。 The rotating mechanism of the asymmetrical pantograph according to the first embodiment functions as follows when the direction is changed. That is, when the vehicle arrives at the terminal station, the current collecting boat 10a is separated from the overhead wire 12 by a pantograph ascending / descending mechanism (not shown). Subsequently, the plurality of pressure supply pipes 4 are switched from the vacuum pressure source to the compressed air source, and compressed air is supplied from the pressure supply pipe 4 between the lower surface of the conductive upper rotating disk 1 and the upper surface of the conductive lower fixed disk 2. Supplied and blown out through the space between the lower surface of the conductive upper rotating disk 1 and the upper surface of the conductive lower fixed disk 2. Therefore, the conductive upper rotating disk 1 is lifted from the conductive lower stationary disk 2 by a minute distance d. The minute interval d is about several tens of microns to several hundreds of microns. In this state, compressed air for driving is supplied to the air actuator 6 through a pair of compressed air supply pipes 8 from a compressed air source (not shown) disposed in the vehicle body 12 of the train. As a result, the air actuator 6 rotates the conductive upper rotating disk 1 180 degrees via the motion conversion mechanism 5 composed of a rack and a pinion, and changes the direction of the asymmetric pantograph 10.

このようにして、導電性上部回転盤１、導電性下部固定盤２、及び導電性上部回転盤１の下面と導電性下部固定盤２の上面との間に供給される圧縮空気は、空気潤滑軸受を構成する。そして、この空気潤滑軸受は安定的に且つ円滑に回転させる堅牢で簡単な構成の軸受であるだけでなく、非対称型パンタグラフの回転機構の回転駆動手段を小型の空気アクチュエータなどで実現することができるという利点を有する。更に、方向転換時に繰り返す回転によっても、導電性上部回転盤１と導電性下部固定盤２には摩擦による磨耗や損傷が殆ど生じない。 Thus, the compressed air supplied between the conductive upper rotating disk 1, the conductive lower fixed disk 2, and the lower surface of the conductive upper rotating disk 1 and the upper surface of the conductive lower fixed disk 2 is air lubricated. Configure the bearing. This air-lubricated bearing is not only a robust and simple bearing that rotates stably and smoothly, but also a rotational drive means of the rotational mechanism of the asymmetric pantograph can be realized by a small air actuator or the like. Has the advantage. Further, the conductive upper turntable 1 and the conductive lower fixed platen 2 are hardly worn or damaged by friction even when the rotation is repeated at the time of turning.

非対称型パンタグラフ１０の方向転換が完了すると、複数の圧力供給管４は圧縮空気源から真空圧源に切替えられ、導電性上部回転盤１の下面と導電性下部固定盤２の上面との間には真空圧が供給される。これによって、導電性上部回転盤１は回転しないようにして導電性下部固定盤２に安定的に着座し、通常時はこの状態を維持する。そして、通常時は、導電性上部回転盤１と導電性下部固定盤２は大きな面積で面接触するから、架線１２から電車の車体１２内の電気装置までの安定した通電経路の一部を構成する。 When the direction change of the asymmetric pantograph 10 is completed, the plurality of pressure supply pipes 4 are switched from the compressed air source to the vacuum pressure source, and between the lower surface of the conductive upper rotating plate 1 and the upper surface of the conductive lower fixed plate 2. Is supplied with vacuum pressure. Thus, the conductive upper rotating disk 1 is stably seated on the conductive lower fixed disk 2 so as not to rotate, and this state is normally maintained. In normal times, the conductive upper rotating disk 1 and the conductive lower fixed disk 2 are in surface contact with a large area, and thus constitute a part of a stable energization path from the overhead wire 12 to the electric device in the car body 12 of the train. To do.

なお、実施例１において、非対称型パンタグラフの回転機構の回転駆動手段は空気アクチュエータであるとしたが、油圧アクチュエータなどの他の回転駆動手段を採用することができることは勿論である。 In the first embodiment, the rotational drive means of the rotational mechanism of the asymmetrical pantograph is an air actuator, but it is needless to say that other rotational drive means such as a hydraulic actuator can be adopted.

一部に断面図を含む本発明の実施例１の非対称型パンタグラフの回転機構の側面図である。It is a side view of the rotation mechanism of the asymmetrical pantograph of Example 1 of the present invention partially including a sectional view. 負圧方式により上部回転盤が下部固定盤に固定された通常時（Ａ）と、空気潤滑軸受として機能しているパンタグラフ方向転換時（Ｂ）の上部回転盤と下部固定盤の相対位置関係を示す拡大部分断面図である。The relative positional relationship between the upper rotating plate and the lower fixed plate when the upper rotating plate is fixed to the lower fixed plate by the negative pressure method (A) and at the time of changing the pantograph direction that functions as an air lubricated bearing (B) It is an expanded partial sectional view shown. ピンロック方式により上部回転盤が下部固定盤に固定された通常時（Ａ）と、空気潤滑軸受として機能しているパンタグラフ方向転換時（Ｂ）の上部回転盤と下部固定盤の相対位置関係を示す拡大部分断面図である。The relative positional relationship between the upper rotating plate and the lower fixed plate when the upper rotating plate is fixed to the lower fixed plate by the pin lock method (A) and when the pantograph direction changing (B) functioning as an air lubricated bearing is changed. It is an expanded partial sectional view shown.

符号の説明Explanation of symbols

１ 導電性上部回転盤
１ａ ロック用貫通穴
２ 導電性下部固定盤
２ａ 貫通穴
３ 回転軸
４ 圧力供給管
５ 運動変換機構
６ 空気アクチュエータ
７ 支持基台
８ 圧縮空気供給管
９ 絶縁碍子
１０ 非対称型パンタグラフ
１０ａ 集電舟
１０ｂ アーム
１０ｃ 支軸
１０ｄ 連結部材
１１ 集電ケーブル
１２ 架線
１３ 車体
１４ ロック用ピン











DESCRIPTION OF SYMBOLS 1 Conductive upper turntable 1a Locking through-hole 2 Conductive lower fixed platen 2a Through-hole 3 Rotating shaft 4 Pressure supply pipe 5 Motion conversion mechanism 6 Air actuator 7 Support base 8 Compressed air supply pipe 9 Insulator 10 Asymmetric pantograph 10a Current collecting boat 10b Arm 10c Support shaft 10d Connecting member 11 Current collecting cable 12 Overhead wire 13 Car body 14 Locking pin











Claims (6)

下面の中心部に回転軸が固着され且つ上面に非対称型パンタグラフが取付けられた上部回転盤と、中心部に設けられた貫通穴に前記回転軸を回転自在に貫挿させ、且つ前記上部回転盤が通常時には回転固定手段によって回転しないようにして着座する下部固定盤と、前記非対称型パンタグラフの方向転換時に前記上部回転盤の下面と前記下部固定盤の上面との間に圧縮空気を供給して空気潤滑軸受を形成させる圧縮空気供給手段と、前記回転軸を介して前記上部回転盤を回転させる回転駆動手段とから構成された非対称型パンタグラフの回転機構。   An upper rotating disk with a rotating shaft fixed to the center of the lower surface and an asymmetric pantograph attached to the upper surface; and the rotating shaft is rotatably inserted into a through hole provided in the center; and the upper rotating disk However, when the asymmetric pantograph is changed in direction, compressed air is supplied between the lower surface of the upper rotating plate and the upper surface of the lower fixed platen. An asymmetric pantograph rotation mechanism comprising compressed air supply means for forming an air-lubricated bearing and rotation drive means for rotating the upper rotating disk via the rotating shaft. 前記上部回転盤は導電性上部回転盤であり、前記下部固定盤は車体に対して絶縁支持された導電性下部固定盤であり、前記非対称型パンタグラフは前記導電性回転盤の上面に直接取付けられており、更に、集電ケーブルの一端は前記導電性下部固定盤に接続されていることを特徴とする請求項１の非対称型パンタグラフの回転機構。   The upper rotating plate is a conductive upper rotating plate, the lower fixed plate is a conductive lower fixed plate insulated and supported with respect to a vehicle body, and the asymmetric pantograph is directly attached to the upper surface of the conductive rotating plate. Further, one end of the current collecting cable is connected to the conductive lower fixed platen, and the rotating mechanism of the asymmetric pantograph according to claim 1. 前記回転駆動手段は、空気アクチュエータと、前記空気アクチュエータにより直線駆動されるラックと、前記上部回転盤の回転軸に固着され前記ラックと噛み合うピニオンとで構成されていることを特徴とする請求項１又は２の非対称型パンタグラフの回転機構。 2. The rotation driving means includes an air actuator, a rack that is linearly driven by the air actuator, and a pinion that is fixed to a rotation shaft of the upper rotating disk and meshes with the rack. Or the rotation mechanism of two asymmetrical pantographs. 前記回転固定手段は、通常時に前記上部回転盤の下面と前記下部固定盤の上面との間に負圧を供給する負圧供給手段であることを特徴とする請求項１の非対称型パンタグラフの回転機構。   2. The rotation of the asymmetric pantograph according to claim 1, wherein the rotation fixing means is a negative pressure supply means for supplying a negative pressure between a lower surface of the upper rotating plate and an upper surface of the lower fixing plate at a normal time. mechanism. 前記回転固定手段は、ロックピンを用いた回転止め手段を更に備えることを特徴とする請求項４の非対称型パンタグラフの回転機構。   5. The asymmetric pantograph rotation mechanism according to claim 4, wherein the rotation fixing means further includes rotation stopping means using a lock pin. 前記圧縮空気供給手段は前記下部固定盤に設けられた複数の圧力供給口に接続された複数の圧力供給管と圧縮空気源とで構成され、前記負圧供給手段は前記下部固定盤に設けられた複数の圧力供給口に接続された複数の圧力供給管と負圧空気源とで構成され、更に、前記圧縮空気供給手段の圧力供給管と前記負圧供給手段の圧力供給管は共用されていることを特徴とする請求項１から５のいずれかの非対称型パンタグラフの回転機構。








The compressed air supply means includes a plurality of pressure supply pipes connected to a plurality of pressure supply ports provided in the lower fixed platen and a compressed air source, and the negative pressure supply means is provided in the lower fixed platen. A plurality of pressure supply pipes connected to the plurality of pressure supply ports and a negative pressure air source, and the pressure supply pipe of the compressed air supply means and the pressure supply pipe of the negative pressure supply means are shared. The asymmetric pantograph rotation mechanism according to any one of claims 1 to 5 , wherein








JP2005266384A 2005-09-14 2005-09-14 Rotation mechanism of asymmetric pantograph Expired - Fee Related JP4478090B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019537917A (en) * 2016-11-10 2019-12-26 ボルボトラックコーポレーション Current collector for vehicles
CN110962639A (en) * 2018-09-28 2020-04-07 郑州宇通客车股份有限公司 Vehicle-mounted confluence device
CN117341479A (en) * 2023-12-05 2024-01-05 常州中量高新技术有限公司 Pantograph mounting seat and pantograph emergency protection device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019537917A (en) * 2016-11-10 2019-12-26 ボルボトラックコーポレーション Current collector for vehicles
CN110962639A (en) * 2018-09-28 2020-04-07 郑州宇通客车股份有限公司 Vehicle-mounted confluence device
CN110962639B (en) * 2018-09-28 2024-04-12 宇通客车股份有限公司 Vehicle-mounted converging device
CN117341479A (en) * 2023-12-05 2024-01-05 常州中量高新技术有限公司 Pantograph mounting seat and pantograph emergency protection device
CN117341479B (en) * 2023-12-05 2024-01-30 常州中量高新技术有限公司 Pantograph mounting seat and pantograph emergency protection device

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