JP4395914B2 - Railcar bogie - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a railcar bogie that can be reduced in weight.
[000 2 ]
[Prior art]
The bolsterless bogie for high-speed railway vehicles are employed currently, in order to prevent the hunting oscillation of the carriage, it is mounted a yaw damper for the most part. In addition, when installing an anti-rolling device to prevent rolling of the vehicle body, it is necessary to give rigidity only to rolling while allowing the vehicle body to move up and down, back and forth, and left and right. It exists independently. As a method of attaching the yaw damper, for example, in Japanese Patent Laid-Open No. 61-241258, as shown in FIG. By connecting the torsion bar 8 provided in the direction of the sleepers and the yaw dampers 9 arranged at both ends thereof in the rail direction via the links 10, the vibration of the carriage 11 is transmitted via the yaw dampers 9. What prevents transmission to the vehicle body 12 is disclosed.
[000 3 ]
However, in the one disclosed in Japanese Patent Application Laid-Open No. 61-241258, although the vibration component transmitted through the yaw damper can be reduced, the number of parts such as a torsion bar and a link mechanism is greatly increased, and the weight of the carriage is increased. Cause increase.
[000 4 ]
[Problems to be solved by the invention]
As described above, in the conventional railroad vehicle bogie, when installed antirolling device in addition to the Yo Danpa, the weight of the base vehicle is disadvantageously increased.
[000 5 ]
The present invention has been made in view of the problems described above, even when provided with the anti-rolling device in addition to the Yo Danpa, provides bogie for railway vehicles that can be suppressed as much as possible the weight increase The purpose is to do.
[0006]
[Means for Solving the Problems]
In order to achieve the above-described object, the railway vehicle carriage according to the present invention is configured such that one end of each of the two yaw dampers arranged horizontally in the rail direction is placed at a position spaced a predetermined distance from the center of rotation of the carriage. Fixed to the left and right ends of the torsion bar arranged so as to be rotatable with respect to the carriage, and the other end of each yaw damper is pivotally connected to a damper receiving member suspended from the vehicle body. It was. In this way, even when an anti-rolling device is provided in addition to the yaw damper, an increase in weight can be suppressed as much as possible.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
In the railcar bogie of the present invention, one end of each of the two yaw dampers arranged horizontally in the rail direction is positioned at a predetermined distance from the center of rotation of the bogie and substantially parallel to the axle and to the bogie. The torsion bars arranged to be freely rotatable are fixed to the left and right ends, respectively, and the other end of each of these yaw dampers is pivotally connected to a yaw damper receiving member suspended from the vehicle body. The cylinder and piston constituting the yaw damper are restrained with one degree of freedom.
[00 08 ]
Railway vehicle bogie of the present invention, since it is configured as described above, the platform car, even when provided with the anti-rolling device in addition to the yaw damper, it is possible to suppress the increase in weight of the truck as much as possible.
[00 09 ]
【Example】
It will be described below with reference to the embodiment shown in FIGS. 1-2 the bogie for railway vehicles of the present invention.
1 (a) is a perspective view illustrating the overall outline of the railway bogie for a vehicle of the present invention, (b) is a partial view of the plus vehicle body (a), (c) is a rod torsion during vertical vibration yaw damper diagram for explaining the state is a view for explaining a main part schematic of another embodiment of (d) are for explaining the state of the torsion bar and the yaw damper during rolling FIG trolley for rail vehicles of FIG. 2 according to the present invention .
[0010]
1 and 2, reference numeral 22 denotes a yaw damper, such as an oil damper, disposed horizontally in the same direction as the rail, for example, one on the outside of each side beam 2 fixed by two transverse beams 1 disposed at the front and rear. A total of two are arranged. Then, in the railway vehicle bogie of the present invention, one end of the, The rewritable fixed to the left and right ends of the torsion bar 8 to rotate in the carriage 11 is supported so as to freely and the other end thereof yaw damper 22, the body 12 For example, the damper receiving member 23 suspended from the shaft is pivotally connected via a rubber bush 24, for example.
[001 1 ]
That is, in the railway vehicle bogie of the present invention, employing a yaw damper 22 as a mounting arm of an anti-rolling device mounted horizontally, the arms that interposed between the mounting arm i.e. the yaw damper 22 and the vehicle body 12, depending from the body 12 As the damper receiving member 23 provided in a shape, the function of the yaw damper is added to the anti-rolling device by being rigidly coupled to the vehicle body 12.
[00 12 ]
Therefore, when the vehicle body 12 and the carriage 11 are relatively moved in the vertical direction, as shown in FIG. 1 (c), rod 8 twist and the left and right yaw damper 22 is so rotated as a unit, to restrain the vertical movement There is nothing. On the other hand, when the vehicle body 12 rolls, as shown in FIG. 1 (d), the torsion bar 8 is twisted to generate a torsional reaction force, which acts as an anti-rolling device.
[00 13 ]
The movement in the front-rear direction is allowed by the rubber bush 24 and the yaw damper 22, and the movement in the left-right direction is supported so that the torsion bar 8 can freely move in the axial direction. 8 is allowed by the axial movement. Further, regarding the function of the yaw damper 22, the yaw damper 22 that also serves as the mounting arm is mounted almost horizontally, and it goes without saying that it functions as a normal yaw damper 22.
[00 14 ]
The railway bogie for a vehicle according to the present invention, by adopting the configuration described above, it is possible to add a function of yaw damper to antiroll device, the carriage 11, even when equipped with the anti-rolling device in addition to the yaw damper, dolly 11 weight increase can be suppressed as much as possible.
[00 15 ]
Further, in the above-described embodiment, a bending moment acts on the contact portion between the piston 22b of the yaw damper 22 and the cylinder 22a due to the structure. To avoid this, as shown in FIG. 2, the cylinder 22a And the vehicle body 12 may be connected by, for example, a link 25 to restrain the cylinder 22a and the piston 22b constituting the yaw damper 22 with one degree of freedom. In this way, when rolling occurs between the carriage 11 and the vehicle body 12, the cylinder 22a and the link 25 bear a bending moment that applies torque to the torsion bar 8. The member 23 bears only the longitudinal load via the piston rod 22c.
[00 16 ]
【The invention's effect】
As described above, the railway vehicle bogie of the present invention, since it is configured as described above, the platform car, even when provided with the anti-rolling device in addition to the yaw damper, as much as possible the weight increase of the carriage Can be suppressed.
[Brief description of the drawings]
1 (a) is a perspective view illustrating the overall outline of the railway bogie for a vehicle of the present invention, (b) is a partial view of the plus vehicle body (a), (c) the rod torsion during vertical vibration FIG. 4D is a diagram illustrating the state of the yaw damper, and FIG. 4D is a diagram illustrating the state of the torsion bar and the yaw damper during rolling.
2 is a diagram illustrating a main part schematic of another embodiment of the railway bogie for a vehicle according to the present invention.
FIG. 3 is a diagram showing a schematic configuration of a railway vehicle carriage disclosed in Japanese Patent Laid-Open No. 61-241258.
[Explanation of symbols]
1 Cross beam 2 Side beam
8 torsion bar 11 truck 12 car body
2 2 Yaw damper 22a Cylinder 22b Piston 23 Damper receiving member 25 Link

Claims (1)

A twist in which one end of each of the two yaw dampers arranged horizontally in the rail direction is arranged at a predetermined distance from the center of rotation of the carriage so as to be substantially parallel to the axle and rotatable relative to the carriage. A railcar carriage characterized in that the rod is fixed to both left and right ends, and the other end of each yaw damper is pivotally connected to a damper receiving member suspended from the vehicle body.

Images