JP4090111B2 - Railway vehicle pendulum device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pendulum device for a railway vehicle that can tilt the vehicle body to the inside of the curved road when the railway vehicle passes through the curved road.
[0002]
[Prior art]
Conventionally, a roller type and a link type are known as a railcar pendulum device for tilting a vehicle body. The roller-type pendulum device includes a roller between a vehicle body and a carriage, and a curved guide on which the roller rolls. Further, as shown in FIG. 6, the link-type pendulum device includes a pair of left and right links 204 and 206 that couple the vehicle body 200 and the carriage 202 (Japanese Patent Laid-Open No. 6-270806).
[0003]
[Problems to be solved by the invention]
However, in such a conventional device, for example, a roller-type pendulum device, if the inclination center of the vehicle body is set to a position lower than the center of gravity of the vehicle body, the curvature of the roller curve guide becomes small and a curve guide is formed. There is a problem in that the tilt center position of the vehicle body cannot be freely selected, and the degree of freedom in design is low.
[0004]
When the link type shown in FIG. 6 is used for the forced pendulum device that tilts the vehicle body 200 by the actuator, the position of the center of gravity G moves up and down when the vehicle body 200 tilts, and a large actuator is required depending on the configuration of the links 204 and 206. There was a problem to do. Further, when the inclination center O is made lower than the case shown in FIG. 6, the angle of the “C” of the link increases, so that the axial force applied to the link increases and the strength of the shaft is required. There was a problem that the degree of freedom was low.
[0005]
The subject of this invention is providing the pendulum apparatus for rail vehicles with the high freedom degree of design of an inclination center position.
[0006]
[Means for Solving the Problems]
In order to achieve this problem, the present invention has taken the following measures in order to solve the problem. That is,
In a railway pendulum device that supports a swinging support of the tilting beam between the tilting beam on which the vehicle body is placed and the bogie frame, and supports the vehicle body swingably,
Wherein the link mechanism includes a pair of vertical links connected to be swingable right and left of the inclined beam, around a swingably supported L-shaped pair of respective pivot pin on the left and right of the bogie frame A pair of the vertical links and a pair of the swing links are provided at symmetrical positions, and a pair of the vertical links at one end of the pair of swing links with respect to the fulcrum pin. Each of the links is swingably connected, and a horizontal link is swingably connected to the other end of the pair of swing links with respect to the fulcrum pin, and the inclined beam and the horizontal link or the This is a railcar pendulum device characterized in that it is connected to the carriage frame so as to restrict relative lateral movement and allow vertical movement .
[0007]
In addition, a restriction pin erected on the other side is slidably inserted into the elongated hole formed on one side, and the horizontal link and the inclined beam are restricted from moving relative to each other in the left-right direction, and allowed to move up and down. It may be connected . Alternatively, a restriction pin erected on the other side is slidably inserted into the elongated hole formed on one side, and the carriage frame and the inclined beam are restricted from moving in the left-right direction to allow up-down movement. It may be connected .
[0008]
Furthermore, the horizontal links are each composed of a pair of left and right horizontal links that are swingably connected to the pair of swing links, and the left and right horizontal links are respectively swinged around the fulcrum pins via elastic members on the inclined beams. It is good also as a structure connected so that movement was possible.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, reference numeral 1 denotes a vehicle body, which is placed on an inclined beam 6 via air springs 2 and 4. Reference numeral 8 denotes a carriage frame, and a link mechanism 10 is provided between the inclined beam 6 and the carriage frame 8.
[0010]
The link mechanism 10 includes a pair of vertical links 16 and 18 that are swingably connected around first fulcrum pins 12 and 14 that are provided at symmetrical positions on the left and right ends of the inclined beam 6. In addition, a pair of swing links 20 and 22 are supported on the carriage frame 8 so as to be swingable around a pair of second fulcrum pins 24 and 26 provided at symmetrical positions.
[0011]
In the present embodiment, the pair of swing links 20 and 22 are formed in an L shape, and the vertical links 16 and 18 are parallel to one end of the pair of swing links 20 and 22, respectively. The connecting pins 28 and 30 are connected so as to be swingable. Both ends of one horizontal link 32 are connected to the other ends of the pair of swing links 20 and 22 by second connecting pins 34 and 36, respectively.
[0012]
Although the vertical links 16 and 18 are parallel to each other, the present invention is not limited to this, and the vertical links 16 and 18 are arranged so that they are somewhat “C” -shaped when the inclined beam 6 is in a horizontal state. However, it can be implemented even if it is arranged in a somewhat inverted “C” shape. In the state of the small “C” and the inverted “C”, the variation in the center of gravity of the vehicle body is somewhat larger than in the case where the vertical links 16 and 18 are parallel and vertical, but there is no practical problem.
[0013]
A regulation pin 38 is erected at the center of the horizontal link 32, and the inclined beam 6 protrudes toward the horizontal link 32, and a long hole 40 that is long in the vertical direction corresponding to the regulation pin 38 is formed in the inclined beam 6. Is formed on the center line a. A restriction pin 38 is inserted into the elongated hole 40 so as to be movable along the elongated hole 40.
[0014]
The inclined beam 6, the vertical links 16 and 18, the swing links 20 and 22, and the horizontal link 32 that constitute the link mechanism 10 are formed symmetrically. In this embodiment, since the distance between the second fulcrum pins 24 and 26 of the swing links 20 and 22 and the second connection pins 34 and 36 is short, the link mechanism 10 is inclined with respect to the center of gravity G of the vehicle body 1. The tilt center O of the beam 6 is at a low position, and an actuator (not shown) is required to tilt the vehicle body 1. When the vehicle body 1 is forcibly tilted, a forcible cylinder as an actuator is provided between the carriage frame 8 and the link mechanism 10 or the inclined beam 6. If the condition of the relationship between the swing efficiency and the storage space is satisfied, It may be inserted at a position.
[0015]
Next, the operation of the above-described railcar pendulum device of the present embodiment will be described.
As shown by a two-dot chain line in FIG. 1, when the inclined beam 6 is tilted by an actuator (not shown), the pair of swing links 20 and 22 swings around the second fulcrum pins 24 and 26. And since a pair of rocking | linkage links 20 and 22 are connected by the horizontal link 32, they rock | fluctuate in parallel in the same direction at the same angle.
[0016]
Thereby, one side of the inclined beam 6 is pulled down via the vertical links 16 and 18 and the other is lifted. At that time, the inclined beam 6 is restricted from moving in the left-right direction relative to the horizontal link 32 by the restriction pin 38, but is allowed to move in the up-down direction along the elongated hole 40.
[0017]
Therefore, the inclined beam 6 is inclined with the swing center O as the center. The movement of the inclined beam 6 in the left-right direction relative to the horizontal link 32 is restricted by the restriction pin 38. Further, the center line a of the inclined beam 6 passes through the center of the regulation pin 38 and also through the swing center O. Therefore, the instantaneous tilt center O of the tilted beam 6 is a fixed position.
[0018]
Further, the height position of the swing center O is determined by the distance between the second fulcrum pins 24 and 26 of the pair of swing links 20 and 22 and the connecting pins 34 and 36. If the distance is short, the swing center O is lower than the center of gravity G of the vehicle body 1 as in this embodiment. If it becomes longer, the position of the swing center O becomes higher.
[0019]
Next, a second embodiment in which the swing center O is positioned higher than the center of gravity G of the vehicle body 1 will be described with reference to FIG. The same members as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. The same applies hereinafter.
The link mechanism 50 of the second embodiment is different from the above-described embodiment mainly in the distance between the second fulcrum pins 24 and 26 of the swing links 20 and 22 and the connecting pins 34 and 36, and the pair of swing links 51. 52, the distance between the fulcrum pins 54 and 56 and the connecting pins 58 and 60 is long. Thereby, the rocking center O of the inclined beam 6 is at a position higher than the center of gravity G of the vehicle body 1 and can be used as a natural pendulum device without using an actuator.
[0020]
Further, the swing center O is not limited to the position described above, and can be implemented by the link mechanism 60 of the third embodiment shown in FIG. In this link mechanism 60, a restriction pin 62 is erected on the carriage frame 8, and the restriction pin 62 is movably inserted into a long hole 64 formed in the inclined beam 6. In the link mechanism 60, the swing center O of the inclined beam 6 coincides with the center of the restriction pin 62. Even in this case, the swing center O does not move even if the tilted beam 6 swings.
[0021]
Next, a fourth embodiment with different swing centers will be described with reference to FIG. As shown in FIG. 4, in the link mechanism 70 of the fourth embodiment, a pair of swing links 72 and 74 and a horizontal link 76 are above the second fulcrum pins 24 and 26 and are connected by connecting pins 78 and 80. It is connected. A restriction pin 82 erected at the center of the horizontal link 76 is movably inserted into an elongated hole 84 formed in the inclined beam 6. According to this link mechanism 70, the swing center O of the inclined beam 6 is lower than the vehicle body 1, and the swing center O does not move due to the tilt of the tilted beam 6.
[0022]
Next, a fifth embodiment different from the above-described embodiment will be described with reference to FIG.
In the link mechanism 90 of the fifth embodiment, one end of each of the two left and right horizontal links 92 and 94 is swung to the pair of swing links 20 and 22 via the connecting pins 34 and 36 without using the long hole 40. It is connected as possible. The other ends of the left and right horizontal links 92 and 94 are connected to restriction pins 96 and 98 erected on the inclined beam 6 via ring-shaped elastic members 100 and 102, respectively.
[0023]
When the inclined beam 6 swings, the elastic members 100 and 102 are elastically deformed to allow the vertical beam and the horizontal links 92 and 94 to move in the vertical direction. When the long hole 40 and the regulation pin 38 are used, it is necessary to consider dust prevention, but using the elastic members 100 and 102 is advantageous in terms of dust prevention.
[0024]
As in the first to fourth embodiments described above, the position of the swing center O can be provided at any position above and below the position of the center of gravity G of the vehicle body 1. Further, when the vehicle body 1 swings, the vertical movement of the swing center O is small, so that a good riding comfort can be obtained.
[0025]
The present invention is not limited to such embodiments as described above, and can be implemented in various modes without departing from the gist of the present invention.
[0026]
【The invention's effect】
As described in detail above, the pendulum device for a railway vehicle according to the present invention has a vehicle body center of gravity position that differs depending on the vehicle type, and by selecting an optimum link type for the vehicle, the swing center position is set to the vehicle body center of gravity position. It can be provided at any upper and lower positions. In addition, it is possible to obtain a good riding comfort with less vertical movement of the vehicle body due to the swing of the vehicle body. Therefore, it is possible to freely select the swing center position of the tilted beam according to the specifications of the railway vehicle, and even if the tilted beam is swung, there is little change in the swing center position. There is an effect that the degree of freedom is high.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a railcar pendulum device as an embodiment of the present invention.
FIG. 2 is a schematic configuration diagram of a railcar pendulum device as a second embodiment.
FIG. 3 is a schematic configuration diagram of a railcar pendulum device as a third embodiment.
FIG. 4 is a schematic configuration diagram of a railcar pendulum device as a fourth embodiment.
FIG. 5 is a schematic configuration diagram of a railcar pendulum device as a fifth embodiment.
FIG. 6 is a schematic configuration diagram of a conventional link type railcar pendulum device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1,200 ... Vehicle body 2, 4 ... Air spring 6 ... Inclined beam 8 ... Bogie frame 10, 50, 60, 70, 90 ... Link mechanism 16, 18 ... Vertical link 20, 22, 51, 52, 72, 74 ... Swing Moving links 32, 76 ... Horizontal links 38, 62, 82, 96, 98 ... Restriction pins 40, 64, 84 ... Slots 92 ... Left horizontal links 94 ... Right horizontal links 100, 102 ... Elastic members

Claims (4)

In a railway pendulum device that supports a swinging support of the tilting beam between the tilting beam on which the vehicle body is placed and the bogie frame, and supports the vehicle body swingably,
Wherein the link mechanism includes a pair of vertical links connected to be swingable right and left of the inclined beam, around a swingably supported L-shaped pair of respective pivot pin on the left and right of the bogie frame A pair of the vertical links and a pair of the swing links are provided at symmetrical positions, and a pair of the vertical links at one end of the pair of swing links with respect to the fulcrum pin. Each of the links is swingably connected, and a horizontal link is swingably connected to the other end of the pair of swing links with respect to the fulcrum pin, and the inclined beam and the horizontal link or the A pendulum device for a railway vehicle, characterized in that the bogie frame is connected to the carriage frame so as to restrict relative movement in the left-right direction and allow vertical movement . A restriction pin erected on the other side is slidably inserted into a long hole formed on one side, and the horizontal link and the inclined beam are connected to each other while restricting relative horizontal movement and allowing vertical movement. The pendulum device for a railway vehicle according to claim 1. A regulation pin erected on the other side is slidably inserted into a long hole formed on one side, and the cart frame and the inclined beam are connected to each other so as to regulate relative lateral movement and allow vertical movement. The pendulum device for a railway vehicle according to claim 1.   Each of the horizontal links comprises a pair of left and right horizontal links that are swingably connected to the pair of swing links, and the left and right horizontal links can swing about the fulcrum pins via elastic members on the inclined beams. The pendulum device for a railway vehicle according to claim 1, wherein the pendulum device is connected to the rail.

Images