JP3194981B2 - Pendulum cart for railway vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pendulum bogie for a railway vehicle used for a pendulum type railway vehicle traveling on a curved road at high speed.

[0002]

2. Description of the Related Art In recent years, bolsterless bogies are often used as pendulum bogies for railway vehicles, like other general bogies (non-pendulum bogies). This pendulum type bogie for railway vehicles has pendulum rollers that perform pendulum action on the bogie frame, pendulum beams are provided on each pendulum roller, and the entire vehicle body is mounted via bolsterless air springs. It is configured so that

[0003] Therefore, in the above-mentioned pendulum-type bogie for railway vehicles, the pendulum beam and the bogie frame are deviated together because the bogie is deflected when passing on a curved road between the vehicle body and the pendulum beam. In the pendulum operation, the pendulum beam and the vehicle body operate together.

Conventionally, this type of bolsterless pendulum truck for railway vehicles is configured as shown in FIGS. 4 to 8A and 8B (Japanese Patent Laid-Open No. 60-163760).

[0005] In other words, in FIGS. 4 to 8 (a) and (b), a bogie frame 2 is provided on each side of a wheel axle (axle) 1 with a shaft spring 3.
The pendulum roller (also referred to simply as a roller) 4 is mounted on both sides of the upper part of the bogie frame 2 so as to roll. As shown in FIG. 5, each pendulum roller 4 has a bearing box (bearing box) 5 of the bogie frame 2 and a bearing 6 composed of a thrust bearing and a radial bearing.
Each of the pendulum rollers 4 is mounted on a support shaft 7 via a corresponding one of the rollers.
a, 9b are provided in contact with each other. Further, a vehicle body 10 is mounted on both upper sides of the pendulum beam 8 via respective air springs 11, and a longitudinal force is transmitted to the bearing box 5 located before and after each of the roller receiving members 9 a and 9 b. Cam followers 12 are provided in contact with each other.
Further, a dustproof cover 13 and a dustproof lip 14 are provided before and after the pendulum beam 8 located outside the bearing box 5 so as to prevent dust from entering.

On the other hand, as shown in FIG. 6, a pair of pendulum stopper devices 15 using a cylinder device are provided inside the bogie frame 2, and each output shaft 15a of each pendulum stopper device 15 is connected to the output shaft 15a. The pendulum beam 8 comes into contact with a pendulum stopper 16 with an elastic material that is vertically suspended in the middle. In the middle of the vehicle body 10, a center shaft 17 is provided.
The center shaft 17 is fitted on the pendulum beam 8, and a traction device 18 is provided on the pendulum beam 8.

[0007] Therefore, when the pendulum-type truck described above travels on a curved road, the excessive centrifugal force F due to the shortage of the cant causes the vehicle body 10 to fail.
When the center of gravity G of the vehicle body 10 is below the center O of the pendulum, a moment M is generated around the center O of the pendulum, and the vehicle body 10 is in a pendulum state. The perceived centrifugal force of the passenger is reduced (see FIGS. 4 and 8). In addition, there is one in which a pendulum operation is performed by a control cylinder as shown by a dashed line in FIG.

Further, since the above-mentioned bolsterless pendulum bogie for a railway vehicle is a bolsterless pendulum, steering of the bogie accompanying traveling on a curved road is performed by the vehicle body 10 and the pendulum beam 8
This is performed by giving a relative displacement in the front-rear direction to the air spring 11 between.

Therefore, only the pendulum movement needs to be observed between the pendulum beam 8 and the bogie frame 2, and each pendulum roller 4 for transmitting the vertical force mainly performs the movement. The roller receiving members 9a and 9b are guided to perform a pendulum action so that a relative displacement in the front-rear direction between the pendulum beams 8 is not generated by a force.

That is, as shown in FIG. 7, the bolsterless pendulum bogie for a railway vehicle described above performs the deflection of the bogie between the vehicle body 10 and the pendulum beam 8 when the vehicle penetrates a curved road. It deviates together with the bogie frame 2. Moreover,
As shown in FIGS. 8A and 8B, in the pendulum operation, the pendulum beam 8 and the vehicle body 10 operate together.

The above-mentioned bolster-less pendulum truck for railway vehicles is, for example, Japanese Patent Publication No. 2-62421 (a pendulum type bogie for railway vehicles) and Japanese Patent Application Laid-Open No. 2-57467 (natural pendulum device for railway vehicles). Both have already been proposed as similar configurations.

[0012]

However, the above-described pendulum type bogie has the following problems due to the pendulum operation between the bogie frame 2 and the pendulum beam 8.

[0013] The purpose of causing the pendulum operation of the vehicle is originally
Although being on a curved road, the bogie frame 2 is naturally offset with respect to the vehicle body 10. However, in the above-described bolsterless pendulum truck for railway vehicles, the bogie frame 2 and the pendulum beam 8 are displaced together, and as shown in FIG. Therefore, it is difficult to perform a smooth pendulum operation, and it is desirable that the smooth pendulum operation is also positioned at right angles to the front and rear pendulum beams 8 with respect to the vehicle body 10.

The bogie in the bolsterless pendulum bogie for railway vehicles described above is not preferable because it actually performs a pendulum operation by twisting the air springs 11.

2, since the position of each air spring 11 is on both sides of the pendulum beam 8, a pendulum vehicle limit 19 is applied as shown in FIG. Is difficult to achieve, which is very disadvantageous in preventing rolling of the vehicle body 10.

3, since each pendulum roller 4 of the above-mentioned bolsterless pendulum truck for railway vehicles is directly mounted on the bogie frame 2, each pendulum roller 4 supports the weight of the vehicle body 10. , Each pendulum roller 4 is in line contact due to the contact between the cylindrical surfaces, and the surface pressure increases,
The fact that each pendulum roller 4 is positioned below each vibrating air spring 11 may shorten the life of each pendulum roller 4.

4. Further, each pendulum roller 4 is protected by a dustproof cover 13 for smooth pendulum operation, but a pendulum stopper 16 is provided at the center of the pendulum beam 8.
Since these components are provided together, protecting them together causes problems such as restrictions on the mounting position. In addition, in a vehicle for a cold region or a snowy region, snow is applied to each pendulum stopper device provided at the lower portion of the bogie frame 2. It is also predicted that the malfunction will occur due to the intrusion into 15.

The present invention has been made in view of the above circumstances, and is a railway capable of smoothly performing a pendulum operation.
An object of the present invention is to provide a pendulum cart for vehicles .

[0019]

According to the first aspect of the present invention, there is provided a pendulum motion when traveling on a curved road.
Railroad vehicle in which the vehicle body is tilted inside the curved road by
Pendulum trucks, each on the left and right sides of the bogie frame
A pair of left and right air springs arranged on the air springs
Pendulum beam laid horizontally in the left and right direction
A pair of left and right rotatably mounted on both left and right sides respectively
The pendulum roller and the downwardly facing arcuate part are on the pendulum roller
An arc-shaped member mounted on a lower part of the vehicle body
And the pendulum beam is provided separately for each bogie frame.
And between the pair of left and right pendulum rollers
A storage recess that opens upward is recessed on the upper surface of the extending part.
The pair of left and right arc-shaped members move the inside of the storage recess to the left.
It reciprocates rightward.

The invention described in claim 2 is the same as the invention described in claim 1.
The pair of left and right circular arcs in the railway vehicle pendulum cart according to
A pair of right and left arranged respectively on the vehicle body side near the member
Abut against each of these stoppers,
A pair of left and right stopper devices disposed on the pendulum beam,
Further provisions are made.

[0021]

According to the present invention, 1. Whether the pendulum beam always extends in the width direction (left-right direction) of the vehicle body
Accordingly, a smooth pendulum operation can be performed. 2. A pair of left and right air springs are placed on both left and right sides of the bogie frame.
General vehicle limits will be applied because
Rolling by expanding the space between the pair of left and right air springs
The characteristics can be improved. 3. Since the pendulum roller is provided on the air spring,
Extend the life of the pendulum roller by reducing the acting impact load
be able to. 4. An upwardly open storage recess formed in the upper surface of the pendulum beam
A pair of left and right arc-shaped members can reciprocate in the left-right direction
The vehicle body closer to the pendulum beam
This makes it possible to lower the center of gravity of the vehicle body. 5. Since a pendulum beam is provided separately for each truck,
Comparison when using one pendulum beam extending between the subsequent bogies
In addition, the weight can be significantly reduced. 6. Provide a stopper near the pair of left and right arc-shaped members.
With a pair of left and right pendulum rollers and a pair of left and right stoppers and
The topper device can be reliably protected. Action
To play.

[0022]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

In FIGS. 1 to 3A and 3B, reference numeral 20 denotes a bogie frame of a bolsterless pendulum bogie for a railway vehicle that inclines the vehicle body inside a curvilinear road by pendulum motion when traveling on a curvilinear road. Each air spring 21 is provided on both sides of the bogie frame 20, and a pendulum beam 22 is laid on each air spring 21 so as to straddle the air spring 21.

On the upper sides of both sides of the pendulum beam 22, each pendulum roller 23 is mounted so as to roll, and on both sides of the lower surface of the upper body 24 of each pendulum roller 23, each arc-shaped member 25 is provided. Are provided in contact with the above pendulum rollers 23.

Furthermore, on the lower surface sides of the body 24 beside each arcuate member 25, the stoppers with elastic material 2
6a and 26b are attached to each of the stoppers 26a and 26b.
a, 26b on the pendulum beam 22 at a position facing each other,
A pair of pendulum stopper devices 27 are provided, and each output shaft 27a of each pendulum stopper device 27 comes into contact with each of the stoppers 26a and 26b.

[0026] In addition, as shown in FIG.
The portion 22a extending between the air springs 21 is attached to the bogie frame 20.
It is projected downward. In addition, each of the pendulum beams 22
On the upper surface 22b of the portion extending in the left-right direction between the pendulum rollers 23
Open upward corresponding to the portion 22a projecting downward.
Each of the storage recesses 22c is formed in a recess. And each circle
The arc-shaped member 25 reciprocates left and right in each of the storage recesses 22c.
I do.

[0027] The following is a description of the operation of the present invention.

[0028] Bolsterless pendulum table for railway vehicle of this embodiment
When a car travels on a curved road, as shown in FIG.
The bogie displacement when passing through a curved road is determined by the bogie frame 20 and the pendulum beam 2.
2 with each air spring 21. Thereby, the vehicle body 2
4 are parallel to each other and the pendulum beams 22 are parallel to each other.
4 always extends at right angles to the left and right direction (body width direction)
Violated. Then, as shown in FIGS. 3A and 3B, the pendulum
The operation is performed by each pendulum roller 23 between the pendulum beam 22 and the vehicle body 24.
Because it will be done. A smooth pendulum operation can be performed.

[0029] Further, each air spring 21 does not perform a pendulum motion.
Since each air spring 21 is provided on the bogie frame 20, a general vehicle
Both limits 28 (see FIG. 1) can be applied. This allows each
The space between the air springs 21 can be made wider in the left-right direction.
Therefore, the rolling characteristics can be improved.

[0030] Further, each pendulum roller 23 is placed on each air spring 21.
To reduce the impact load acting on each pendulum roller 23.
And the life of each pendulum roller 23 can be extended.
You.

[0031] Further, each strut is located near each arc-shaped member 25.
The hoppers 26a, 26b and each pendulum stopper device 27
Provided, each pendulum roller 23 and each pendulum stopper device 2
7 Make sure that the function of the dustproof
Can be.

The present invention can also be applied to a pendulum truck that performs a pendulum operation by a control cylinder indicated by a chain line in FIG.

[0033]

As described above, according to the present invention, the pendulum
Because the beam always extends in the width direction (left and right direction) of the vehicle body,
It can perform a simple pendulum operation. Also, each air spring
Since it is arranged on both right and left sides of the bogie frame, it is a general car
Both limits will apply and the spacing between each air spring will be
The rolling characteristics can be improved by spreading. Ma
In addition, since the pendulum roller is provided on the air spring,
Extend the life of the pendulum roller by reducing the acting impact load
be able to. Also, the upper part of the pendulum beam
Each arc-shaped member reciprocates in the left and right direction within the open storage recess
It is possible to place the car body closer to the pendulum beam and
And lower the center of gravity of the vehicle body.
Wear. In addition, since pendulum beams are provided separately for each truck,
When using one pendulum beam extending between bogies before and after the vehicle
The weight can be greatly reduced as compared with Also,
Since a stopper is provided near each arc-shaped member, each pendulum
B, each stopper and each stopper device are securely protected.
be able to.

[Brief description of the drawings]

FIG. 1 is a front view showing a main part of a railway vehicle pendulum truck according to the present invention.

FIG. 2 is a view for explaining the operation of the railway vehicle pendulum truck of the present invention.

FIG. 3 is a diagram for explaining the operation of the railcar pendulum cart of the present invention.

FIG. 4 is a front view showing a conventional railcar pendulum cart.

FIG. 5 is an enlarged sectional view taken along a chain line AA in FIG. 4;

FIG. 6 is an enlarged front view showing a main part of a conventional bolsterless pendulum cart for railway vehicles.

FIG. 7 is a view for explaining the operation of a conventional bolsterless pendulum cart for railway vehicles.

FIG. 8 is a view for explaining the operation of a conventional bolsterless pendulum cart for railway vehicles.

[Explanation of symbols]

 Reference Signs List 20 bogie frame 21 air spring 22 pendulum beam 23 pendulum roller 24 body 25 arc-shaped member 26 stopper 27 stopper device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B61F 5/22

Claims (2)

(57) [Claims] The vehicle is driven by a pendulum when traveling on a curved road.
Pendulum bogie for railway vehicles that inclines the body inside the curved road
And a pair of left and right sides respectively disposed on the left and right sides of the bogie frame.
Air springs and a pendulum horizontally mounted on these air springs
The beam and the pendulum beam are rotatably mounted on both the left and right sides, respectively.
A pair of left and right pendulum rollers and a downwardly facing arcuate part are placed on the pendulum rollers.
A pair of left and right arc-shaped members attached to the lower part of the vehicle body
And the pendulum beam is provided separately for each bogie frame.
The part extending in the left-right direction between the pair of left and right pendulum rollers
A storage recess that opens upward is formed on the upper surface, and the pair of left and right arc-shaped members move right and left in the storage recess.
Pendulum table for railcars, reciprocating in the direction
car. 2. The vehicle near the pair of left and right arc-shaped members.
A pair of left and right stoppers respectively arranged on the body side, Arranged on the pendulum beam that abuts each of these stoppers
A pair of left and right stopper devices, The railway according to claim 1, further comprising:
Pendulum cart for vehicles.