JPH06270806A - Vehicle body inclination controller of rolling stock - Google Patents

Abstract

PURPOSE:To secure safety against turnover and realize safe high speed travel by making constitution in which the rotation center of a vehicle body can be regulated by controlling an interval between the respective upper ends or an interval between the respective lower ends of both links in the case of a device in which a pair of right and left links are interposed between the vehicle body and a truck. CONSTITUTION:In the case of a vehicle body inclination controller for a rolling stock, a pair of right and left links 3, 4 are interposed between a vehicle body 1 and a truck 2. In this instance, constitution is such that the rotation center O of the vehicle body 1 can be regulated by controlling an interval between the respective upper ends or the respective lower ends of both links 3, 4. For example, cylinders 5 that act in right and left directions are furnished to the vehicle body 1, and vehicle body side connecting portions 21 are coupled to the piston rods of these. By operating the right and left cylinders 5 in opposite directions to each other, a distance between the right and left vehicle body side connecting portions 21 is made to change freely, and then, the rotational center O is made to move to the upper side or the lower side with regard to the center of gravity G. As a result, safety against the turnover of the vehicle body 1 is secured, and at the same time safe high speed travel is achieved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a link type vehicle body inclination control device for a railway vehicle.

[0002]

2. Description of the Related Art When a railroad vehicle passes through a curved road, it receives a force that pushes outward due to a centrifugal force. Although it cancels the action, the passing speed at that time is naturally limited. In order to exceed the speed limit and increase the speed on the curved road, it is necessary to further incline the vehicle body. As a method of inclining the vehicle body, there are a roller type and a link type inclining device.

The roller type tilting device includes a natural pendulum type shown in FIG. 9 and a controlled pendulum type shown in FIG. In the natural pendulum type, a roller 17 mo is provided between the vehicle body 1 and the bogie 2, and a natural pendulum motion can be performed with a radius r around a point O above the center of gravity G of the vehicle body, and the vehicle can pass through a curved road. At times, the vehicle body leans toward the inner track due to centrifugal force. Further, in the pendulum type with control, an actuator 18 that acts in the left-right direction is provided between the vehicle body 1 and the bogie 2, and the vehicle body is forcibly tilted toward the inner rail side by the action of the actuator 18 when passing through a curved road.

Further, the link type tilt control device is used in the vehicle body 1.
An actuator 20 that connects the vehicle and the carriage 2 with a pair of left and right links 19 and acts between the vehicle body 1 and the carriage 2 in the left-right direction.
Is provided for the actuator 2 when passing through a curved road.
By the action of 0, the car body is forcibly tilted toward the inner track.

[0005]

In the above-mentioned conventional pendulum type inclining device, the height of the rotation center O is constant and invariable. Further, the height of the link type rotation center O is substantially constant although it moves geometrically with the inclination. Since the center of rotation O is above the center of gravity G of the vehicle body, the center of gravity G when leaning
Moves out of the curve, reducing the headroom of the vehicle. In addition, the link-type tilt control device uses the center of gravity G of the vehicle body.
Can be located above the center of rotation O, and the center of gravity when leaning can be moved to the inner rail side, so the margin for overturning the vehicle can be increased. However, when the control is stopped, the vehicle leans toward the outer gauge, which is opposite to the natural pendulum type, and the lateral acceleration on the floor becomes large, resulting in poor riding comfort. Further, since the center of gravity G moves to the outer rail side, the margin for overturning the vehicle is reduced.

The present invention eliminates the problems found in the above-described conventional link type inclination control device, and changes the distance between the left and right links to change the height of the center of rotation of the vehicle body. A control device is provided.

[0007]

In order to achieve the above object, a vehicle body leaning control device for a railway vehicle according to the present invention is a vehicle body leaning mechanism in which a pair of left and right links are provided between the bogie and the vehicle body. The height of the center of rotation of the vehicle body is adjustable by controlling the distance between the upper ends or the lower ends of the left and right links that are coupled between them.

Further, in a vehicle body tilting mechanism in which a pair of left and right links are provided between the bogie and the vehicle body, the left and right links connected between the bogie and the vehicle body are formed by two link pieces respectively connected in series. The height of the center of rotation of the vehicle body can be adjusted by controlling the distance between the link connecting portions of the left and right links.

[0009]

The operation of the present invention will be described in the case where the distance between the vehicle body side mounting portions of the links is variable. As shown in FIG. 3, the center of rotation O is lower than the center of gravity G when the distance L ₁ between the left and right links is large, and when the vehicle body is tilted to the inside of the curve by the vehicle body tilt control when passing through a curved road, the center of gravity G is inward. It is possible to move to the rail side and enhance the safety against capsizing.

As shown in FIG. 4, when the distance between the left and right links is narrowed to L ₂ and the center of rotation O is adjusted to substantially overlap with the center of gravity G, the vehicle body tilt control is erroneously operated and the vehicle body tilts improperly. Even when the center of gravity G is present, the lateral displacement of the center of gravity G does not occur. Therefore, the exacerbation of the effect on overturning does not increase.

Further, as shown in FIG. 5, when the space between the left and right links is narrowed to L ₃ (<L ₂ ) and the rotation center O is moved to a position higher than the center of gravity G, the effect of a natural pendulum is obtained. Therefore, if the space between the left and right links is narrowed to L ₃ when the vehicle body tilt control is stopped, the vehicle body can be tilted passively as a natural pendulum. Further, if the center of rotation O is set to a height close to the center of gravity G, the amount of movement of the center of gravity G to the outer gauge side can be reduced, and the safety against overturning does not decrease so much.

[0012]

【Example】

Embodiment 1 An embodiment of the invention of claim 1 will be described with reference to FIGS. 1 and 2. FIG. 1 shows an embodiment in which the distance between the vehicle body side connecting portions of the left and right links 3 and 4 (lower end side of the links) is variable,
In the case of FIG. 1A, the vehicle body side connecting portion 21 is coupled to the piston rod of the cylinder 5 that is attached to the vehicle body 1 and that acts in the left-right direction. Then, by operating the left and right cylinders 5 in opposite directions, the distance between the left and right vehicle body-side connecting portions 21 can be arbitrarily changed, and the rotation center O can be moved upward or downward with respect to the center of gravity G. . The vehicle body side connecting portion 21
The moving mechanism is not limited to the cylinder 5, but as shown in FIG. 1B, a female screw cylinder 6 slidably supported by the vehicle body 1 is provided.
Other mechanisms such as joining the vehicle body side connecting portion 21 to the female threaded cylinder 6 of the moving mechanism in which the male screw rod 8 screwed into the vehicle body 1 is rotated by the motor 7 supported by the vehicle body 1 can be used.

FIG. 2 shows an embodiment in which the distance between the trolley-side connecting portions of the left and right links (upper end side of the links) is variable. In this case, the cylinder 9 that works in the left and right direction on the left and right sides of the carriage 2
The trolley-side connecting portion 22 is joined to the connecting rod 10 that moves forward and backward by the cylinder 9. In this case as well, by moving the left and right connecting rods 10 in opposite directions, the interval between the truck-side connecting portions of the left and right links is arbitrarily changed, and the rotation center O is moved upward or downward with respect to the center of gravity G. You can

Embodiment 2 An embodiment of the invention of claim 2 will be described with reference to FIGS. 6 to 8. The left and right links connected between the carriage 2 and the vehicle body 1 are respectively connected in series, and the upper and lower link members 11 and 13 and the lower link member 1 in which the joint portions 23 thereof are bendable.
In the embodiment in which the cylinder 15 composed of Nos. 2 and 14 and having the piston rod connected to the joint 23 thereof is attached to the vehicle body 1 in the case of FIGS. 6 and 7, and attached to the carriage 2 in the case of FIG. is there.

In the case of FIG. 6, the piston rod of the cylinder 15 is moved backward, and in the case of FIG. 7, the piston rod of the cylinder 15 is moved forward, so that the distance between the left and right links is widened and the center of rotation O is increased. The position is configured to be low. Note that FIG. 7 shows the return spring 16
Is shown.

In the case of FIG. 8, the left and right lower link members 1 are moved by retracting the piston rod of the cylinder 15.
The angle formed by 2 and 14 is widened, and the center of rotation O ₁ is below the center of gravity G. Conversely, when the piston rod is advanced to bring the upper link members 11 and 13 and the lower link members 12 and 14 close to a straight line, the center of rotation O ₂ Is located above the center of gravity G.

[0017]

Since the height of the center of rotation of the vehicle body inclination can be arbitrarily set, the center of gravity of the vehicle can be shifted to the inner track side on a curved road when the vehicle body is inclined, and the safety against overturning can be enhanced. Further, when the vehicle body tilt control is stopped on a curved road, the center of rotation is set higher than the center of gravity of the vehicle and the mode is switched to the natural pendulum type, so that the vehicle can travel safely at high speed.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of the invention of claim 1, A is an overall explanatory view thereof, and B is a partial view showing another moving mechanism of a vehicle body side connecting portion.

FIG. 2 is an explanatory diagram showing another embodiment of the invention of claim 1;

FIG. 3 is an explanatory diagram of height variation of a vehicle body rotation center according to the embodiment of the present invention, showing a case where a rotation center O is lower than a center of gravity G.

FIG. 4 is an explanatory view of the height variation of the rotation center of the vehicle body according to the embodiment of the present invention, showing a case where the rotation center O coincides with the center of gravity G.

FIG. 5 is an explanatory view of the height variation of the vehicle body rotation center according to the embodiment of the present invention, showing a case where the rotation center O is higher than the center of gravity G.

FIG. 6 is an explanatory view showing an embodiment of the invention of claim 2;

FIG. 7 is an explanatory view showing a second embodiment of the invention of claim 2;

FIG. 8 is an explanatory view showing a third embodiment of the invention of claim 2;

FIG. 9 is an explanatory view of a conventional roller type natural pendulum device.

FIG. 10 is an explanatory view of a conventional roller type pendulum device with control.

FIG. 11 is an explanatory diagram of a conventional link-type tilt control device.

[Explanation of symbols]

 1 vehicle body 2 bogie 3, 4, 19 link 5, 9, 15 cylinder 6 female screw cylinder 7 motor 8 male screw rod 10 connecting rod 11, 13 upper link member 12, 14 lower link member 16 return spring 17 roller 18, 20 actuator 21 vehicle body Side connection part 22 Truck side connection part 23 Joint part

Claims (2)

[Claims] 1. In a vehicle body tilting mechanism having a pair of left and right links provided between a bogie and a vehicle body, a space between upper ends or lower ends of left and right links connected between the bogie and the vehicle body is controlled,
A vehicle body tilt control device for a railway vehicle, which is configured so that the height of the center of rotation of the vehicle body can be adjusted. 2. A vehicle body tilting mechanism comprising a pair of left and right links provided between a bogie and a vehicle body, wherein the left and right links coupled between the bogie and the vehicle body are each composed of two link pieces coupled in series. A vehicle body tilt control device for a railway vehicle, which is configured so that the height of the center of rotation of the vehicle body can be adjusted by controlling the distance between the link connecting portions of the left and right links.