JPH08268275A - Truck with body tilter for rolling stock - Google Patents

Abstract

PURPOSE: To provide a truck with body tilter for rolling stock capable of solving any trouble due to snow penetration and freezing as well as dust penetration into a body tilter part, and suitable for running the snowy region and muck in dust. CONSTITUTION: A pendulum beam 4 to tilt a car body 2 is provided on a truck frame (cross beam 6 and side beam 7). This pendulum 4 is formed into a hollow box. A part or the whole of a rocker supporting mechanism (bearing guide) of the pendulum 4 and a rocking drive mechanism (body tilt control cylinder 11) is set up in a hollow part of the pendulum 4. This pendulum beam 4 itself performs its duties of a snow cover a dust cover, covering the rocker the supporting mechanism and a rocking drive mechanism entirely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bogie for a railway vehicle (so-called pendulum bogie) having a vehicle body tilting device for intentionally tilting a vehicle body in a curve of a track. In particular, the present invention relates to a bogie with a vehicle body tilting device for a railroad vehicle, which is improved so as to be suitable for traveling in a snowy area or a line section with a lot of dust. Further, the present invention relates to a bogie with a vehicle body tilting device for a railway vehicle, which has good controllability and responsiveness by directly mounting the control valve on the vehicle body tilting control cylinder.

[0002]

2. Description of the Related Art When a railroad car travels on a curve of a railroad track, a pendulum bogie that tilts the car body in a direction that apparently cancels centrifugal force applied to the car body (including passengers inside) is a high-speed rail car such as JR. It is becoming more and more frequently used. This is because it is possible to improve the passenger comfort when traveling at high speed on a sharp curve track and to speed up the vehicle.

FIG. 3 is a partially exploded perspective view showing the construction of a bogie with a vehicle body tilting device for a railroad vehicle (tentatively called RDT9037 bogie) having a bearing guide as a swing support mechanism proposed in Japanese Patent Application No. 6-72950. is there. Cart 1 of FIG.
′ Is a wheel axle assembly 8, a bogie frame (side beam 7, side beam 6),
The pendulum beam 4 and other parts are provided.

Wheels 43 are supported by axle bearings in an axle box (bearing box) 47 via an axle 49. Axle 4
Reference numeral 9 denotes a motor (main electric motor) 102 via a speed reducer 103.
Driven to. The axle box 47 is elastically supported by the side beam 7 via an axle spring 41. The wheel 43, the axle 49, the axle bearing, and the axle box 47 are referred to as the wheel axle assembly 8.

Left and right side beams 7 and front and rear two side beams 6
Are rigidly fixed (welded, etc.) to form a bogie frame. The traveling direction of the vehicle is referred to as the front-rear direction, and the direction perpendicular to the front-rear direction is referred to as the left-right direction. The bogie frame is mounted on the front and rear two wheel axle assemblies 8.

The pendulum beam 4 is a beam having a lower end profile in the shape of a partial arc. An arc-shaped bearing guide rail 23 is fixed to the side surface of the pendulum beam 4. The bearing guide rail 23 is slidably supported by the bearing block 21 via bearing balls (not shown) (see FIG. 4). The bearing guide rail 23, the balls 22, and the bearing block 21 form a bearing guide as a swing support mechanism. The bearing block 21 is fitted and fixed in a groove-shaped bearing block receiver 101 at the center of the side beam 7. Therefore, the pendulum beam 4 is attached to the side beam 7
It is supported so that it can swing to the left and right with respect to (the bogie frame).

The swing of the pendulum beam 4 is driven and controlled by a vehicle body inclination control cylinder 11 and a vehicle body inclination control valve (not shown) mounted on the lower surface of the vehicle body. One end of the vehicle body tilt control cylinder 11 is fixed to a cylinder receiver on the lateral beam 6 of the bogie frame, while the tip of the cylinder rod is connected to the cylinder receiver on the outer wall side of the pendulum beam 4.

A pillow spring 3 is placed on the pendulum beam 4, and a vehicle body (not shown) is placed on the pillow spring 3.
The yaw damper 109 is a damper that connects the left and right ends of the pendulum beam 4 and the vehicle body in the rail direction, and the bogie with respect to the vehicle body while traveling is periodically swiveled to the left and right around the vertical axis (such movements). Is called a snake action). Further, reference numeral 107 denotes a laterally-moving damper, which is a device for damping / suppressing lateral vibrations of the vehicle body supported by an air spring with respect to the truck to improve riding comfort.

[0009]

By the way, the pendulum truck that has been conventionally used is used when traveling in a snowy area.
It has been a problem that malfunction of the vehicle body tilting device is likely to occur. That is, snow that has adhered to or entered the trolley is pressed and fixed at the movable part of the vehicle body tilting device to narrow the movable range of the same part, or snow that has entered and melted is frozen again in the vehicle body tilting device and the There was something that hindered the operation.

As a countermeasure against this, it has been attempted to prevent the intrusion of snow by covering a movable part such as a cylinder or a sliding part with a snow cover. Similar measures must be taken in the bearing guide type pendulum cart of FIG. 3, for example, as shown in FIG. 5, a snow cover 112 that covers the bearing guide 20 is attached. Was there. However, it is difficult to completely prevent snow intrusion with such a snow cover. In addition, an extra item is attached around the pendulum, which is an obstacle to design and maintenance.

In the conventional vehicle body tilt control bogie, the control cylinder for controlling the vehicle body tilt is attached to the outside of the pendulum beam and between the bogie frame, and the control valve for controlling it has a large outer shape and is weak against vibration. It was common to attach it under the floor of the vehicle, away from the control cylinder. Therefore, the pipe connecting the control valve and the control cylinder becomes long, and it is necessary to improve responsiveness and controllability.

The present invention provides a bogie with a body tilting device for a railway vehicle, which is capable of solving troubles caused by intrusion of snow or freezing into the body tilting device portion and which is suitable for traveling in a snowy area. With the goal. Another object of the present invention is to provide a bogie with a car body tilting device for railway vehicles, which has improved control response and controllability of a conventional car body tilt control bogie.

[0013]

In order to solve the above problems, a bogie with a vehicle body tilting device for a railroad vehicle according to the present invention is provided for turning a bogie with respect to a vehicle body by a pendulum beam and a curve for tilting the vehicle body. A bogie with a car body tilting device for a railway vehicle having a rotating beam on a bogie frame; a pendulum beam having a hollow box shape, and a part or all of a swing support mechanism and a swing drive mechanism of the pendulum beam. However, it is characterized in that it is installed in the hollow part of the pendulum beam and between the rotary beams.

A bogie with a vehicle body tilting device for a railroad vehicle according to one aspect of the present invention is characterized in that a bearing guide as a swing support mechanism of the pendulum beam is provided between the box-shaped pendulum beam and the rotary beam. .

[0015]

In the bogie with a vehicle body tilting device for a railway vehicle according to the present invention, a pendulum beam is formed in a box shape, and a swing support mechanism such as a bearing guide and a swing drive for a cylinder and a control valve thereof are provided therein. Since the mechanism is housed, the pendulum beam itself plays a role as a snow cover that covers the swing support mechanism and the swing drive mechanism. Therefore, it is possible to solve the problem of malfunction of the vehicle body tilting device due to the intrusion of snow. Since the bogie with the vehicle body tilting device for a railroad vehicle of the present invention is excellent not only in the entry of snow but also in dustproofness,
The present invention is not limited to snow-covered vehicles. In addition, a control valve was attached to the body of the control cylinder that controls the body tilt, and it was housed together in the pendulum beam, eliminating the need for piping between the control valve and the control cylinder, which was a problem with conventional body tilt control bogies. The responsiveness and controllability of the conventional control were improved.

[0016]

Embodiments of the present invention will be described below. Figure 1
It is a side sectional view showing typically the composition of the trolley | bogie with the vehicle body inclination device for railway vehicles which concerns on 1 Example of this invention. FIG. 2 shows FIG.
FIG. 6 is a front view schematically showing the configuration of a bogie with a vehicle body tilting device for railway vehicles of the same embodiment as in FIG. 1A is a view taken along the line AA of FIG. 1, and FIG. 1B is a view taken along the line BB of FIG.

The bogie 1 is composed of a wheel shaft assembly 8, a bogie frame (side beam 7, side beam 6), a pendulum beam 4, and the like. The wheel 43 is supported by an axle bearing 45 in an axle box (bearing box) 47 via an axle 49. The axle box 47 is elastically supported by the side beam 7 via an axle spring 41. The wheel 43, the axle 49, the axle bearing 45, and the axle box 47 are referred to as the axle assembly 8. The left and right two side beams 7 and the front and rear two lateral beams 6 are firmly fixed (welded or the like) to form a bogie frame. The bogie frame is mounted on the front and rear two wheel axle assemblies 8.

The pendulum beam 4 is a hollow / box-shaped beam having a partially arcuate lower end profile. An arc-shaped bearing guide rail 23 is fixed to the side surface of the inner wall of the hollow / box-shaped pendulum beam 4. Bearing guide rail 2
3 is slidably supported by the bearing block 21 via bearing balls 22. The swing of the pendulum beam is driven and controlled by a vehicle body inclination control cylinder 11 and a vehicle body inclination control valve 12 directly attached to the vehicle body inclination control cylinder. On the pendulum beam 4, a pillow spring 3
And the vehicle body 2 is placed on the pillow spring 3.

The pendulum bogie of this embodiment is compared with the conventional bogie of FIG. 3 in that the pendulum bogie has a rotating beam 5, that the bearing guide 20, the body tilt control cylinder 11, the body tilt control valve 12, and the body tilt are used. The swing support mechanism such as the restraining cylinder 17 and the swing drive mechanism are housed in the pendulum beam 4.

The rotary beam 5 is rotatable in a horizontal plane about a pin hole 31 provided at the center of the bogie frame (lateral beam 6). The center pin 29 protruding downward from the center of the lower surface of the rotary beam 5 serves as the center of rotation of the rotary beam 5 and rotates in the pin hole 31. The slide receiving portion 33 slidably supports both ends of the rotary beam 5 from below.

The rotating beam 5 absorbs (rotational displacement) around the vertical axis between the bogie frame (the lateral beam 6 and the side beam 7) and the vehicle body 2 when the vehicle travels on a curve.

In the conventional trolley shown in FIG. 3, the pillow spring 3 absorbs the relative rotational displacement between the trolley and the vehicle body when the vehicle travels on a curved line.
It was given at 09. The reason why the rotary beam 5 is adopted as in the present embodiment is that, as shown in FIG. 1, the lower part of the pendulum beam 4 that supports the bearing guide 20, the vehicle body tilt control cylinder 11 and the like, and is opened to incorporate these components therein. This is because it is useful as a member for closing the opening. Further, in the conventional bogie of FIG. 3, the single link 111 is adopted to transmit the traction force between the vehicle body and the pendulum beam, but this single link is longer than the front and rear width of the pendulum beam, Since this link squeezes out, this link presses snow adhering to the bogie when tilting the car body, which is one of the causes of poor tilting of the body of the pendulum car. We adopted the rotary beam method and omitted one link.

Next, the structure of the pendulum beam 4 will be described.
The bearing block 21 is fixed to the bearing guide support 25 on the rotary beam 5 with bolts (not shown). The bearing block 21 is provided with a bearing guide rail 23 through a bearing ball 22.
Is slidably fitted. As shown in FIG. 2A, the bearing guide rail 23 is provided so as to draw an arc having a radius R centered on the vehicle body tilt center. Therefore, on the rotating beam 5, the pendulum beam 4 swings so that the swing swings left and right. The bearing block 21, the bearing ball 22, and the bearing guide rail 23 are the bearing guide 20 as a swing support mechanism.
To form. The bearing guide 20 itself is similar to the conventional one in FIG.

It is the vehicle body tilt control cylinder 11 that swings the pendulum beam 4 with respect to the rotary beam 5. The vehicle body tilt control cylinder 11 is attached to a cylinder post 15 that rises upward from the rotary beam 5. The tip of the rod of the vehicle body tilt control cylinder 11 is fixed to an arm 13 protruding from the pendulum beam 4. Therefore, the pendulum beam 4 swings left and right on the rotating beam 5 according to the change in the length of the rod of the vehicle body tilt control cylinder 11.

Like the vehicle body inclination control cylinder 11, the vehicle body inclination control cylinder 17 is also housed in the pendulum beam 4.
The vehicle body tilt suppression cylinder 17 is used when the traveling speed is slow,
In order to hold the vehicle body in the neutral position when the control fails, a pair of vehicle body tilt restraint cylinders mounted facing the pendulum beam 4 or the rotating beam 5 is used to rotate the pendulum beam in the case of the former. Pendulum stopper 1 on beam 5
6 is fixed to the pendulum beam 4 by inserting the pendulum stopper on the pendulum beam 4 in the latter case of the rotary beam attachment.

As shown in FIG. 1, a seal 27 is provided on the gap 26 between the rotary beam 5 and the pendulum beam 4. The seal 27 prevents snow or the like from entering the pendulum beam 4 from the clearance 26. Further, bellows 28 (FIG. 2) are provided at the left and right ends of the pendulum beam 4 to prevent snow and the like from entering.

In FIG. 2, the vehicle body lower protrusion 51 and the lateral movement stopper 53 shown on the pendulum beam 4 restrict the lateral movement of the vehicle body 2 with respect to the pendulum beam 4, and the action of these stoppers causes the vehicle body to move. It is possible to keep out of a certain fixed limit (when a vehicle exits this limit,
For example, there is a risk of contact with the platform or the inner wall of the tunnel).

Although not shown in FIGS. 1 and 2, in an actual truck, a brake and a bolster anchor (a traction device) are used.
Known devices are attached as necessary.

[0029]

INDUSTRIAL APPLICABILITY As described above, the bogie with a vehicle body tilting device for a railway vehicle of the present invention exhibits the following effects. Since the swing support mechanism such as the bearing guide and the swing drive mechanism such as the body tilt control cylinder are housed inside the box-shaped pendulum beam, malfunction of the body tilt device caused by snow intrusion or icing is prevented. Can be prevented. Since the pendulum beam itself is a snow cover structure, there is no need for an extra structure, so there is no problem in design and maintenance. A control valve is attached to the body of the control cylinder that controls the body tilt, and it is housed together in the pendulum beam, eliminating the need for piping between the control valve and the control cylinder. The responsiveness and controllability of were improved.

[Brief description of drawings]

FIG. 1 is a side sectional view schematically showing a configuration of a bogie with a vehicle body tilting device for a railroad vehicle according to an embodiment of the present invention.

FIG. 2 is a front view schematically showing the configuration of a bogie with a vehicle body tilting device for railway vehicles of the same embodiment as in FIG. (A) is diagram A
FIG. 3B is a view on arrow A, and FIG. 3B is a view on arrow BB in FIG. 1.

FIG. 3 is a partially exploded perspective view showing a configuration of a bogie with a vehicle body tilting device for a railroad vehicle (tentatively called RDT9037 bogie) having a bearing guide as a swing support mechanism proposed in Japanese Patent Application No. 6-72950.

FIG. 4 is a partially cutaway perspective view showing a structure of a bearing guide as an example of a swing support mechanism.

FIG. 5 is a side view schematically showing a snow cover structure of a conventional bogie with a vehicle body tilting device for railway vehicles.

[Explanation of symbols]

1 ... Bogie 25 ... Bearing Guide Support 2 ... Vehicle Body 26 ... Clearance 3 ... Pillow Spring 27 ... Seal 4 ... Pendulum Beam 28 ... Bellows 5 ... Rotating Beam 29 ... Center Pin 6 ... Side Beam 31 ... Pin Hole 7 ... Side Beam 33 ... Sliding receiving part 8 ... Wheel axle assembly 41 ... Shaft spring 9 ... Rail 43 ... Wheel 11 ... Vehicle body tilt control cylinder 45 ... Axle bearing 12 ... Vehicle body tilt control valve 47 ... Axle box 13 ... Cylinder receiving 49 ... Axle 15 ... Cylinder post 51 ... Vehicle lower projection 16 ... Pendulum stopper 53 ... Left / right movement stopper 17 ... Vehicle body tilt suppressing cylinder 55 ... Bellows 19 ... Cylinder receiver 101 ... Bearing block receiver 20 ... Bearing guide 102 ... Motor 21 ... Bearing block 103 ... Reducer 22 ... Ball 105 ... Center pin 23 ... Bearing guide rail 107 ... Left and right damper 109 ... Yoda damper 111 ... Single link 112 ... Snow cover 113 ... Bogie frame

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Yoshio Akiyama 2-8 Mitsumachi, Kokubunji, Tokyo 38 Inside the Railway Technical Research Institute

Claims (3)

[Claims] 1. A bogie with a car body tilting device for a railway vehicle, comprising a pendulum beam for tilting a car body on a bogie frame.
The pendulum beam is formed in the shape of a hollow box, and a part or all of the swing support mechanism and the swing drive mechanism of the pendulum beam are installed in the hollow portion of the pendulum beam. Trolley for vehicle body tilting device. 2. A bogie with a car body tilting device for a railway vehicle, comprising a pendulum beam for tilting a car body on a bogie frame.
The pendulum beam is formed in the shape of a hollow box, and the bearing guide as the swing support mechanism of the pendulum beam
A bogie with a vehicle body tilting device for a railway vehicle, which is provided in a hollow portion of the pendulum beam. 3. A bogie frame, and a rotating beam supported by a sliding member on the upper surface of a lateral beam of the bogie frame, wherein the rotating beam is rotated in a pin hole provided in a vertical axis turning center of the bogie frame. A center pin on the underside of the beam is fitted in, and is a member that allows rotational displacement between the car body and the bogie while imparting turning sliding resistance when the railway vehicle travels on a curve. A pendulum beam for tilting a vehicle body that is swingably supported about an axis in the vehicle front-rear direction (vehicle body tilt center), and a bogie with a vehicle body tilting device for a rail vehicle; It is configured in the shape of a hollow box with an opening at the bottom, and has a bearing guide as a swing support mechanism for a pendulum beam and a vehicle body tilt control cylinder, a vehicle body tilt control valve, a vehicle body tilt control cylinder as a swing drive mechanism, Part or all of the left-right motion damper, etc. A lower opening of the pendulum beam which is provided between the hollow box of the pendulum beam and the rotary beam, and which is provided to attach the swing support mechanism and the drive mechanism to the rotary beam, A bogie with a body tilting device for railway vehicles, which is configured to be closed using a sealing material fixed to the.