JP4526992B2 - Pantograph mechanism - Google Patents

Description

  The present invention relates to a pantograph mechanism arranged on a roof of a railway vehicle for supplying power to the railway vehicle.

The conventional pantograph mechanism and vibration system have a structure in which the sliding contact portion with the overhead wire (trolley wire), the buffer spring portion, and the center of the pedestal are supported vertically, that is, vertically, with respect to the vehicle roof. The boat body of the pantograph has a longitudinally symmetrical shape and is arranged so as to be orthogonal to the traveling direction of the vehicle, that is, orthogonal to an overhead line (trolley line) (see Patent Document 1 below).
FIG. 8 is a schematic diagram of such a conventional pantograph mechanism (part 1; rhombus pantograph), and FIG. 9 is a top view of a sliding contact portion between the boat body and the overhead wire of the pantograph mechanism (part 1).

In this figure, 101 is a vehicle roof, 102 is an insulator, 103 is a pantograph pedestal, 104 is a frame, 105 is a spring, 106 is a ceiling pipe, 107 is a hull, 108 is a sliding board, 109 is an overhead line (trolley line) is there.
As shown in FIG. 9, the sliding plate 108 of the boat body 107 and the overhead wire (trolley wire) 109 are arranged so as to be orthogonal (90 °).

FIG. 10 is a schematic diagram of a conventional pantograph mechanism (part 2; single arm type pantograph).
In this figure, 201 is a vehicle roof, 202 is an insulator, 203 is a pantograph pedestal, 204 is a frame, 205 is a spring, 206 is a ceiling pipe, 207 is a hull, 208 is a sliding board, 209 is an overhead wire (trolley line) is there.

Also in this case, although the structure of the frame 204 is different from that of FIG. 5, the sliding plate 208 of the boat body 207 and the overhead wire (trolley wire) 209 are arranged to be orthogonal to each other as in FIG. 6.
FIG. 11 is a schematic diagram of the conventional pantograph mechanism and vibration system.
This figure shows a further simplified structure of the conventional pantograph shown in FIGS.

In FIG. 11, 111 is a support portion, 112 is a buffer spring portion, 113 is a sliding contact portion, and 114 is an overhead wire (trolley wire). As described above, the conventional pantograph has a structure in which the buffer spring portion 112 and the sliding contact portion 113 are vertically supported, that is, the support that pushes the overhead wire (trolley wire) 114 from below and makes sliding contact. It has a structure.
JP 2004-301591 A

As described above, the conventional pantograph has a structure in which the sliding contact portion, the buffer spring portion, and the center of the pedestal are vertically supported, and the hull glide plate is arranged so as to be orthogonal to the overhead wire. Therefore, the longitudinal stiffness of the hull is likely to occur due to stick-slip, and the aerodynamic Karman vortex is generated during high-speed driving , resulting in the vertical vibration of the hull and the noise from the hull. There was a problem that it increased rapidly .

  In view of the above situation, the present invention reduces and eliminates the wavy wear of overhead wires due to stick-slip, reduces the generation of Karman vortices, suppresses longitudinal and vertical vibrations, and reduces noise from the hull. An object of the present invention is to provide a pantograph mechanism that can perform the above.

In order to achieve the above object, the present invention provides
[1] In the pantograph mechanism, the pantograph hull is disposed behind the center of the pantograph pedestal in the vehicle front-rear direction, and the pantograph hull is directed toward the traveling direction of the vehicle when viewed from above. a V-shaped open and disposed with a oblique angle in the range of 65 ° from 25 ° with respect to the overhead line, characterized in Rukoto.

[2] In [1] Symbol mounting of the pantograph mechanism, characterized in that the base of said pantograph comprises a mechanism for rotating the direction of travel of the vehicle.

  According to the present invention, it is possible to reduce and eliminate the wavy wear of the overhead wire due to stick-slip, reduce the generation of aerodynamic Karman vortex, and to suppress the front and rear and vertical vibrations and reduce the noise from the hull. it can.

According to the pantograph mechanism of the present invention, the pantograph hull is disposed behind the center of the pantograph pedestal in the vehicle front-rear direction, and when the pantograph hull is viewed from above, the pantograph hull is directed toward the traveling direction of the vehicle. a V-shaped open and Ru are arranged with a oblique angle in the range of 65 ° from 25 ° with respect to overhead lines. Therefore, the wavy wear of the overhead wire due to stick-slip caused by repeated compression and restoration in the traveling direction is reduced and eliminated, and the generation of aerodynamic vibration due to Karman vortex is reduced, so that longitudinal vibration and vertical vibration are suppressed and Noise can be reduced.

Hereinafter, embodiments of the present invention will be described in detail.
1 is a top view of a sliding contact portion between a hull and an overhead wire of a pantograph mechanism showing an embodiment of the present invention, FIG. 2 is a schematic view of the pantograph mechanism, and FIG. 2 (a) is a first pantograph thereof. FIG. 2 (b) is a schematic diagram of the second pantograph mechanism.
In these drawings, 1 is a vehicle roof, 2 is an insulator, 3 is a pantograph pedestal, 4 is a frame, 5 is a spring, 6 is a ceiling pipe, 7 is a hull, 8 is a sliding plate, and 9 is an overhead wire (trolley wire). It is.

First, in this embodiment, a pantograph comprising a support part (insulator 2, pantograph pedestal 3), a buffer spring part (frame 4, spring 5) and a sliding contact part (boat body 7, sliding plate 8) is in sliding contact. The part is formed so as to be arranged rearward with respect to the traveling direction of the vehicle with respect to the front-rear direction center of the support part . A momentary compressive force is applied upward by the spring 5.

Further, as shown in FIG. 1, the boat body 7 and the sliding plate 8 and the overhead wire (trolley wire) 9 are arranged so as to have an oblique angle θ.
The oblique angle θ is preferably in the range of 25 ° to 65 °.
This is because if the oblique angle θ is too small, the boat body 7 and the overhead line 9 may be separated from each other, and in order to avoid this, a long-sized boat body is required. θ accordance becomes close to 90 °, Corrugation of the overhead line by the stick-slip is likely to occur, and because would be similar problems with the prior art arises such aerodynamic vibrations due Karman vortex occurs.

According to the present invention, since the structure described above, increases the rigidity in the longitudinal direction, reducing the corrugations of the contact wire by stick-slip, extinction is not Rutotomoni, to decline the occurrence of aerodynamic vibration by Karman vortices, longitudinal In addition, the vertical vibration can be suppressed and the noise from the hull can be reduced.
FIG. 3 is a schematic view showing a knitted vehicle in which a plurality of pantographs of the present invention are arranged, and FIG. 4 is a partial top view of a pantograph mechanism mounted thereon.

  In this embodiment, as shown in FIG. 4A, the preceding pantograph 11 has a boat body 12 and a sliding plate 13 similar to those in FIGS. 1 and 2 having an oblique angle θ with an overhead line (trolley line) 14. It is arranged to have. On the other hand, in the following pantograph 21, as shown in FIG. 4B, the boat body 22 and the sliding plate 23 are arranged so as to have an oblique angle of 180 ° -θ with the overhead line (trolley line) 14. .

Incidentally, 1 when placing the train 10 on three or more pantograph, a pantograph having a sliding contact portion of the oblique angle θ as described above, the sliding contact portion of the oblique angle 180 ° - [theta] as described above It is desirable to alternately arrange the pantographs that are provided.
By adopting such a pantograph mechanism, in addition to the above-described effects, the overhead wire is reduced by the sliding contact of the boat body with the overhead wire (trolley wire) at a constant sliding angle at all times. This has the effect of smoothing the wavy wear that has already been formed, and can extend the life of the overhead wire (trolley wire).

FIG. 5 is a top view of a sliding contact portion between a boat body and an overhead wire of a pantograph mechanism showing another embodiment of the present invention.
In this embodiment, a V-shaped boat body 31 opened in the traveling direction and a sliding plate 32 are formed on the boat body 31. In this case, it is desirable that the oblique angle θ of the boat body 31 with respect to the center line 33 of the boat body 31 is in the range of 25 ° to 65 °. When the oblique angle theta, can be a sliding plate 32 and the contact wire 34 to slide smoothly, greatly reduce the occurrence of stick-slip and aerodynamic vibrations.

FIG. 6 is a view showing the arrangement of a boat body and a sliding board showing an embodiment of the present invention, FIG. 6 (a) is the first embodiment, and FIG. 6 (b) is the second embodiment. is there.
As shown in FIG. 6 (a), a sliding plate 42 is arranged in a loose state in the boat body 41 so that the spring 43 biases the sliding plate 42 in a direction opposite to the traveling direction of the vehicle. Ru is configured. Reference numeral 44 denotes an overhead line.

Further, as shown in FIG. 6B, a sliding plate 53 having a pivotal support portion 52 is disposed in the boat body 51, and a push-up spring 54 is disposed below the sliding plate 53. Reference numeral 55 denotes an overhead line.
FIG. 7 is an explanatory diagram of a pantograph mechanism having a pedestal that enables rotation of the pantograph according to an embodiment of the present invention. FIG. 7A is a schematic diagram showing a first aspect of the pantograph, and FIG. ) Is a schematic diagram showing a second aspect of the pantograph rotated 180 degrees from FIG.

In FIG. 7A, a V-shaped boat body 63 opened in the traveling direction and a sliding plate 64 provided on the boat body 63 are formed on the frame 62 on the pedestal 61. Is in sliding contact . From this state, the state shown in FIG. 7B can be obtained by rotating the base 61 by 180 degrees.
That is, in this embodiment, when the vehicle that has traveled as shown in FIG. 7A turns back at the end point and travels in the reverse direction, as shown in FIG. A pantograph pedestal 61 having a slip plate 64 is rotated 180 degrees on a horizontal plane by a pneumatic rotary link or a motor (not shown) so that it can be locked. Therefore, the boat body 63 and the sliding plate 64 are also rotated 180 degrees in a horizontal state by the rotation of the pedestal 61, and can function without problems even when the vehicle travels in the reverse direction. Reference numeral 65 denotes an overhead line.

  In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.

  The pantograph mechanism of the present invention can be used as a pantograph mechanism that supplies power from an overhead line of a railway vehicle.

It is a top view of the sliding contact part of the hull and overhead wire of the pantograph mechanism which shows the Example of this invention. It is a schematic diagram of a pantograph mechanism showing an embodiment of the present invention. It is a mimetic diagram showing the formation vehicles in which a plurality of pantographs of the present invention are arranged. FIG. 4 is a partial top view of a pantograph mechanism mounted on the formation vehicle of FIG. 3. It is a top view of the sliding contact part of the boat body and overhead wire of the pantograph mechanism which shows the other Example of this invention. It is a figure which shows arrangement | positioning with the boat body and the sliding board which show the Example of this invention. It is explanatory drawing of the pantograph mechanism which has the base which can rotate the pantograph which shows the Example of this invention. It is a mimetic diagram of the conventional pantograph mechanism (the 1). It is a top view of the contact part of the hull and overhead wire of the conventional pantograph mechanism (the 1). It is a mimetic diagram of the conventional pantograph mechanism (the 2). It is a schematic diagram of a conventional pantograph mechanism and a vibration system.

DESCRIPTION OF SYMBOLS 1 Roof of vehicle 2 Insulator 3,61 Pantograph pedestal 4,62 Frame 5,43 Spring 6 Ceiling pipe 7,12,22,31,41,51,63 Hull 8,13,23,32,42,53,64 Sliding plate 9, 14, 34, 44, 55, 65 Overhead wire (trolley wire)
DESCRIPTION OF SYMBOLS 10 1 organization train 11 Pantograph ahead 21 Pantograph behind 33 33 Centerline 52 Pivot 54 Push-up spring

Claims (2)

The pantograph hull is arranged rearward of the center of the pantograph pedestal in the vehicle front-rear direction, and the pantograph hull is a V-shape that opens toward the traveling direction of the vehicle when viewed from above. and it is arranged with a oblique angle in the range of 65 ° from 25 ° with respect to the overhead line pantograph mechanism, wherein Rukoto. In claim 1 Symbol placement pantograph mechanism, a pantograph mechanism, characterized in that the base of said pantograph comprises a mechanism for rotating the direction of travel of the vehicle.

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