JPH06316266A - Rail vehicle body tilt control device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a vehicle body inclination control device for a railway vehicle equipped with an air spring, which enables the use of an air spring having a small effective diameter. [Structure] An inclined beam 4 is supported on air springs 3 provided on the left and right sides of a bogie 2, and two or more laminated elastic bodies 5 each having a through hole vertically provided between the inclined beam 4 and the vehicle body 1 are provided. Supports the car body 1,
The left and right air chambers of the double-acting cylinder 6 attached to the vehicle body 1 are connected to the left and right air springs 3 by the air pipelines 16 with the through holes of the laminated elastic body 5 interposed therebetween, and are provided in the left and right air pipelines 16. The detection signal from the height controller 8 is input to the control device 10,
A control signal relating to the vehicle body tilt from the control device 10 is input to the drive device 7 of the double-acting cylinder 6. [Effect] An air spring with a small internal volume and a pneumatic cylinder can be used, and space can be saved. Further, the riding comfort can be improved by reducing the mass between the springs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body inclination control device for a railway vehicle equipped with an air spring.

[0002]

2. Description of the Related Art A railroad vehicle passing through a curved road, unless it travels at a speed commensurate with the cant amount, causes lateral acceleration to act on passengers to make the ride uncomfortable. In order to improve the riding comfort on a curved road, the vehicle body may be tilted so as to cancel out the lateral acceleration. As the body tilting method,
Among several methods, one of the methods using an air spring is an apparatus shown in FIG. 3 disclosed in Japanese Patent Laid-Open No. 58-110368.

This device comprises a double-acting pneumatic cylinder 17
The left and right air chambers and the left and right air springs 3 are connected by air pipes 21, respectively, and a controller 20 outputs a detection signal from a height detector 19 provided on the left and right sides between the vehicle body 1 and the bogie 2. A motor and a rack operated by control signals obtained by arithmetic processing,
The piston is moved to the left and right through the drive device 18 composed of a pinion to expand one of the air springs 3 and at the same time compress the other to tilt the vehicle body.

[0004]

If the conventional vehicle body inclination control device by adjusting the height of the air spring is applied to a railway vehicle traveling on a route with many small curves, a large horizontal displacement between the vehicle body and the bogie will occur. An air spring with a large effective diameter is required to allow it. However, at this time, the volume of the double-acting cylinder required to adjust the height also becomes large, so that it is difficult to mount the double-action cylinder on the carriage due to the configuration of other parts.

Further, since the weight of the double-acting cylinder is heavy, the weight between the carriages is increased, which leads to deterioration of riding comfort. Therefore, a structure is required in which sufficient allowable displacement is obtained and the weight between springs is small even if an air spring having a small effective diameter is used.

In order to solve the above-mentioned problems in the conventional vehicle body tilt control by the air spring, the present invention bears most of the horizontal displacement between the vehicle body and the bogie by another mechanism, and the displacement by the air spring is prevented. (EN) Provided is a vehicle body tilt control device for a railway vehicle with an air spring, which enables use of an air spring having a small effective diameter by reducing the burden.

[0007]

In order to achieve the above object, a vehicle body inclination control device for a railroad vehicle with an air spring according to the present invention supports inclined beams on air springs provided on the left and right sides of a bogie, and Two or more laminated elastic bodies with through holes provided vertically between the beam and the vehicle body are provided to support the vehicle body, and the left and right air chambers of the double-acting cylinder attached to the vehicle body are laminated elastically on the left and right air springs, respectively. They are connected by an air duct with a through hole in the body, and a detection signal from a height controller provided in the left and right air ducts is input to the control unit, and a control signal regarding the vehicle body tilt from the control unit is sent to the double-acting cylinder. It is configured to input to the driving device.

[0008]

The displacement of the bogie of the bogie, that is, most of the horizontal displacement between the car body and the bogie is borne by the laminated elastic body on the inclined beam, and the rest is borne by the air spring. By reducing the displacement load of the air spring, an air spring having a small effective diameter can be used.

Since the double-acting cylinder provided on the vehicle body side and the air spring provided on the dolly side are connected by the air pipe line having the through hole of the laminated elastic body, the double action cylinder is provided between the vehicle body and the dolly at the time of bogie bogie. Displacement is allowed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. Air springs 3 are placed on the left and right sides of the trolley 2, and the inclined beams 4 are supported between the left and right air springs. The slanted beam 4 is formed by recessing the left and right supporting ends of the slanted beam inward, and is formed of rubber on the left and right sides of the formed recess.
The laminated elastic body 5 supports the vehicle body 1. By forming the concave portion in this way, the mounting position of the laminated elastic body 5 can be lowered, and a stable and space-saving structure can be obtained.

Then, the left and right air chambers of the double-acting cylinder 6 provided on the vehicle are connected to each other by an air pipe 16 that passes through the inside of the inclined beam 4 through the through hole of the laminated elastic body 5. A height control cylinder 8 is provided between the double-acting cylinder 6 and the laminated elastic body 5, and a detection signal from the height control cylinder 8 is sent to the controller 1.
The control signal is input to 0, and a control signal obtained by comparison calculation with a preset limit height is input to the drive device 7 of the double-acting cylinder 6. In addition, 9 in the figure is a left and right support link.

The drive device 7 for the double-acting cylinder 6 is not particularly limited. For example, as shown in FIG. 2A, a hydraulic cylinder having a servo valve 11 with a hydraulic source 12 may be used, or as shown in FIG. 2B, Various types of devices can be used, such as using a drive device including a rack 14 provided on the piston rod of the double-acting cylinder 6 and a pinion 15 rotated by a motor 13.

With the above construction, the laminated elastic body 5 bears most of the horizontal displacement at the bogie of the bogie, and the air spring 3 bears the rest. Further, since the double-acting cylinder 6 and the air spring 3 are pneumatically connected through the through hole of the laminated elastic body 5, the pipe between the vehicle body 1 and the carriage 2 having a large relative displacement becomes unnecessary, and the air pipe No damage due to damage.

When a control signal from the controller 10 is input to the drive device 7, the double-acting cylinder 6 is driven based on the control signal.
The piston of is moved to the left or right, and the inner volume of the left and right air springs changes. As a result, the height of the air spring is adjusted, and the vehicle body leans toward the inner rail side.

[0015]

By making the laminated elastic body bear most of the horizontal displacement during bogie bogies, it is possible to use air springs and pneumatic cylinders with a small internal volume, thus saving space. Further, the riding comfort can be improved by reducing the mass between the springs.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of the present invention.

FIG. 2 is an explanatory view showing an embodiment of a drive device for a double-acting cylinder, in which A is a hydraulic cylinder with a servo valve, and B is a drive device composed of a motor-driven rack and pinion.

FIG. 3 is an explanatory diagram of a conventional vehicle body tilt control device using an air spring.

[Explanation of symbols]

 1 vehicle body 2 bogie 3 air spring 4 inclined beam 5 laminated elastic body 6 double-acting cylinder 7 drive device 8 height control cylinder 9 left and right support link 10 control device 11 servo valve 12 hydraulic power source 13 motor 14 rack 15 pinion 16 air line 17 Pneumatic cylinder 18 Drive device 19 Height detector 20 Control device 21 Air pipeline

Front Page Continuation (72) Inventor Yoshiki Onishi 5-1, 109 Shimaya, Konohana-ku, Osaka City, Osaka Prefecture Sumitomo Metal Industries, Ltd. Steel Works (72) Inventor, Yoshishi Sato 5-1-1 Shimaya, Konohana-ku, Osaka City, Osaka Prefecture No. 109 Sumitomo Metal Industries, Ltd. Steel Works (72) Inventor Toyoji Miki 5-1-1 Shimaya, Konohana-ku, Osaka City, Osaka Prefecture Sumitomo Metal Industries Co., Ltd. Steel Works

Claims (1)

[Claims] 1. A bogie with an air spring for a railway vehicle, comprising a laminated elastic body in which inclined beams are supported on air springs provided on the left and right sides of the bogie and a through hole is vertically provided between the inclined beam and the vehicle body. Supporting the car body with more than one unit, the left and right air chambers of the double-acting cylinder attached to the car body are connected to the left and right air springs by the air pipelines through the through holes of the laminated elastic body. A vehicle body inclination control device for a railway vehicle configured to input a detection signal from a height controller provided on a road to a control device and to input a control signal related to the vehicle body inclination from the control device to a drive device of a double-acting cylinder.