JPH0834346A - Truck with car body inclination device for rolling stock - Google Patents

Abstract

PURPOSE:To provide a truck with a car body inclination device for rolling stock which can improve curve traveling speed further as the wheel weight of the inner track side of the truck is not reduced at the time of car body inclination and which is improved so that riding comfort may not be extremely worsened even in the case in which car body inclination control has failed. CONSTITUTION:The truck is equipped with a support stand 5 that is built on a truck frame 7 and stands up to the vicinity of the roof of a car body 1; a swing member 3 that is arranged at its upper part and swung with the car body inclination center O0 of the car body 1 lower part as a center; a car body inclination actuator 13; and a bolster spring 2 provided between the swing member 3 and the car body 1. In a case in which the car body 1 is inclined with a curve into the curve inside, the gravity center of the car body 1 is moved to the inner side than the track center of the curve, and it is prevented that the wheel weight of the inner track side of the truck becomes small.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bogie with a vehicle body tilting device for a rail vehicle for improving the running performance of the rail vehicle in a curved section of a rail track.

[0002]

2. Description of the Related Art FIG. 8 shows a center of gravity of a vehicle body, a center of inclination of a vehicle body, a center of a shaft spring, a pillow spring (air spring) in a conventional vehicle (pendulum vehicle) with a roller type vehicle body tilting device for actively performing tilt control. ) A schematic front view showing the positional relationship of the centers. FIG. 9 is a schematic front view showing a state where the vehicle body is tilted in the vehicle shown in FIG. Here, 1 is a vehicle body, 2 is a pillow spring, 3 is a pendulum beam, 7 is a bogie frame, 9 is an axial spring, 10 is a wheel axle, 13 is a vehicle body tilting actuator, 20 is a vehicle body tilting device (roller type), and G is The center of gravity of the vehicle body, O ₀ is the center of inclination of the vehicle body, O ₁ is the center of the axial spring, and O ₂ is the center of the pillow spring.

A vehicle with a roller type vehicle body tilting device includes a vehicle body 1, a pillow spring 2, a pendulum beam 3, a bogie frame 7, a shaft spring 9, and an axle 1.
0, a vehicle body tilting device (roller type) 20, and the like. In a vehicle of natural pendulum type (inclination is not actively controlled), the vehicle body is tilted around a center of rotation O ₀ of the vehicle body by a centrifugal force acting on a center of gravity G of the vehicle body at a curved portion. In addition, recently, in order to improve the riding comfort by gently and gently inclining the vehicle body with a gentle curve provided at the entrance / exit of the curve, the pendulum beam 3 and the bogie frame 7 are provided.
A vehicle body tilting device with a control is also practical in which a vehicle body tilting actuator 13 such as a pneumatic cylinder is attached between the two, and a vehicle body tilting control force is added to the centrifugal force acting on the center of gravity G of the vehicle body to actively perform tilting control. It has become. However, even in the case of the vehicle body tilting device with control, when the vehicle body tilting control fails, a natural pendulum that tilts the vehicle body only by centrifugal force is possible, so the tilt center height of the vehicle body should be the same as that of the conventional natural pendulum. ing.

As described above, since the conventional pendulum wheel in Japan basically utilizes the centrifugal force generated during curved traveling as the vehicle body tilting force, the height of the vehicle body tilting center O ₀ as shown in FIG. Is as high as 2275-2300 mm above the rail surface,
The height of the center of gravity G of the vehicle body should be as low as 1300 to 1500 mm on the rail surface, and the moment force about the center of leaning of the vehicle body due to the centrifugal force acting on the center of gravity G of the vehicle body (the distance between the center of body leaning and the center of gravity of the vehicle It becomes the length). In addition, the height of the center O ₂ of the pillow spring is set to 9001 to 000 mm on the rail surface in most vehicles due to the structure of the vehicle body.

However, in relation to the center of gravity of the vehicle body, the center of inclination of the vehicle body, and the height of the center of the pillow spring of such a vehicle with a vehicle body tilting device, various problems are encountered when trying to improve the performance of the vehicle with a vehicle body tilting device. Therefore, it is impossible to improve the performance. This is because when the vehicle body is tilted inside the curve around the vehicle body tilt center along a curved line, the center of gravity G of the vehicle body moves to the outer track side from the track center of the curved line (G-G 'in FIG. 9).
In S), the wheel load applied to the wheels on the inner gauge side of the bogie is reduced. As a result, in an extreme case, there is a risk of derailment, which becomes a limiting factor in improving the curve traveling speed.

Further, in order to increase the moment force around the center of leaning of the vehicle body due to the centrifugal force acting on the center of gravity G of the vehicle body to facilitate natural pendulum, the height of the center of leaning of the vehicle body of the conventional vehicle with a body leaning device is adjusted. With such a high value, the amount of left / right swaying of the floor surface of the vehicle body increases when the vehicle body leans. If this happens, standing passengers and walking passengers will feel like they are scooping their legs, and seated passengers will also experience large lateral vibrations, which will result in poor riding comfort and further improvement in curving speed. It will be difficult.

Recently, due to competition with automobiles and airplanes,
It is an important issue for railways to further improve the curving speed and riding comfort. In order to achieve this problem, it was necessary to change the configuration of the vehicle with a body leaning device so that the running performance and riding comfort could be greatly improved.

[0008]

As described in the prior art, a vehicle with a body tilting device that has been put to practical use in Japan so far is capable of a natural pendulum and a reason for the configuration of the vehicle. Therefore, the relationship between the center of inclination of the vehicle body, the center of gravity of the vehicle body, and the height of the center of the pillow spring is as follows. As shown in Fig. 8, the center of inclination of the vehicle body is as high as possible, the center of gravity of the vehicle body is as low as possible, and the pillow spring is placed under the body underframe. It was common to place them.

Therefore, when the vehicle body is tilted to the inside of the curve during traveling on a curve, the center of gravity of the vehicle body moves to the outer gauge side of the curve, and the wheel load on the inner gauge side of the bogie becomes smaller, which limits the speed improvement of the curve. There was a problem that Further, when the center of inclination of the vehicle body is high, there is a problem in that the amount of swaying of the floor surface of the vehicle body when the vehicle body is inclined becomes large and the riding comfort deteriorates. In addition, if the mounting height of the pillow spring is low, the vehicle body rolls and leans outward when traveling on a curve, so that the vehicle body tilting angle by the vehicle body tilting device becomes substantially slightly smaller, which deteriorates riding comfort. It was

Recently, there has been a strong demand for further improving the traveling speed on a curve of a vehicle with a vehicle body tilting device and the riding comfort on a gentle curve. An object of the present invention is to significantly change the vehicle structure of a conventional pendulum vehicle, and to change the relationship between the vehicle body tilt center height, the vehicle body center height, and the pillow spring center height from the conventional one to further improve the curve traveling speed. Even if it improves, the running weight is prevented by reducing the wheel weight on the inner gauge side of the bogie, and the ride comfort is suppressed by suppressing the amount of left / right swaying of the vehicle floor when the vehicle leans and rolling of the vehicle. Is to improve.

Another object of the present invention is to mount the pillow spring of the vehicle body supporting device at a high position, and to naturally incline the vehicle body by a few degrees by the centrifugal force when traveling on a curved line, to influence the centrifugal acceleration. It is an object of the present invention to provide a trolley with a vehicle body tilting device for a railroad vehicle, in which the riding comfort is improved by reducing the height and the riding comfort is not extremely deteriorated even when the vehicle body tilt control fails.

[0012]

A bogie with a vehicle body tilting device for a railroad vehicle according to the present invention comprises a wheelset assembly including wheels, an axle, an axle box, and a bogie frame supported on the wheelset assembly. A support cradle that stands up to the vicinity of the roof of the vehicle body that is erected on the bogie frame, a swinging member that is disposed above the support cradle, and that swings around the vehicle body tilt center at the lower portion of the vehicle body, and the above-described support cradle A vehicle body tilting actuator provided between the members and a control device therefor, and a vehicle body elastic support means (pillow spring) provided between the swing member and the vehicle body are provided.

A bogie with a vehicle body tilting device for a railway vehicle according to one aspect of the present invention comprises an axle of a railway vehicle, a bogie frame supported on the axle via a shaft spring, an air spring for supporting the vehicle body, and the like. A vehicle body support device mounted at a high position near the vehicle body roof, a vehicle body tilting device of a bearing guide type, a roller type or a link type that tilts the vehicle body inside the curve with a curve, and a hydraulic cylinder or a hydraulic cylinder that controls the inclination of the vehicle body. A vehicle body inclination control device including an actuator such as a pneumatic cylinder, and a support frame fixed on the bogie frame for mounting the vehicle body support device and the vehicle body inclination device at a high position near the vehicle body roof. In a trolley with a vehicle body tilting device for railway vehicles; the tilting of the vehicle body by the curvature of the bearing guide or roller guide of the vehicle body tilting device or the structure of a link type link. By setting the center of gravity so that it is below the center of gravity of the car body and about the height of the floor surface of the car body, the center of gravity of the car body moves inward from the center of the orbit of the curve when tilting the car body inside the curve. It prevents the wheel load on the inner gauge side of each bogie from decreasing and improves the running performance.It also reduces the left-right swaying of the vehicle floor when the vehicle leans and improves the riding comfort. By mounting the vehicle body support device at a high position near the roof of the vehicle body, in addition to the vehicle body inclination angle by the vehicle body inclination device, the vehicle body naturally inclines several degrees inside the curve due to centrifugal force during curved traveling. The left-right steady acceleration on the floor decreases and the riding comfort improves,
In addition, even when the vehicle body tilt control fails, the natural pendulum action prevents the ride comfort from being extremely deteriorated.

According to another aspect of the present invention, there is provided a bogie with a vehicle body tilting device for a railroad vehicle, which comprises an axle of a railroad vehicle, a bogie frame supported on the axle via an axial spring, an air spring for supporting the vehicle body, and the like. A vehicle body support device mounted at a high position near the vehicle body roof, a vehicle body tilting device such as a bearing guide type, a roller type or a link type that tilts the vehicle body inside the curve with a curved line, and a hydraulic pressure that controls the inclination of the vehicle body A vehicle body tilt control device including an actuator such as a cylinder or a pneumatic cylinder; and a support frame fixed on the bogie frame for mounting the vehicle body support device and the vehicle body tilt device at a high position close to a vehicle body roof. In a trolley with a vehicle body tilting device for a railway vehicle configured as described above; the curvature of a bearing guide or roller guide of the vehicle body tilting device or the structure of a link-type link By setting so that the center of inclination is below the center of gravity of the vehicle body and about the height of the floor surface of the vehicle body, the center of gravity of the vehicle body moves inward from the center of the trajectory of the curve when the vehicle body is tilted inwardly in a curve. In addition, the wheel load on the inner gauge side of each bogie is prevented from being reduced to improve the running performance, and the lateral vibration of the vehicle body floor surface when the vehicle body is tilted is reduced to improve the riding comfort. Even if the control fails, the vehicle body support device such as an air spring is mounted at a high position near the vehicle body roof, so that the vehicle body naturally tilts inside the curve by a few degrees due to centrifugal force when traveling on curved roads. The feature is that it prevents the left-right steady acceleration in the vehicle from decreasing and making the riding comfort extremely bad.

In a conventional vehicle with a vehicle body tilting device in which the vehicle body tilt center is located at a high position, when the vehicle body is tilted inwardly of a curve, the center of gravity of the vehicle body always moves to the outer track side of the curve, and the inner track side of each bogie. The wheel load of is reduced. If it is attempted to prevent the wheel load on the inner track side of each bogie from being reduced when the vehicle body is tilted with the existing vehicle body tilting device configuration, the entire vehicle body is moved horizontally inside the curve at the timing of the vehicle body tilting. There must be. However, this method is not realistic because the device becomes very large. Further, if the center of inclination of the vehicle body is located at a high position as in a vehicle with a conventional vehicle body inclining device, the lateral movement of the vehicle body floor surface is inevitably large when the vehicle body is inclined, and it is difficult to take measures. Therefore, by changing the relationship between the center of inclination of the vehicle body, the center of gravity of the vehicle body, and the height of the center of the pillow spring of a vehicle with a vehicle body tilting device, the wheel weight on the inner gauge side of each bogie when tilting the vehicle body in a curve is changed. Various vehicle configurations were studied so that they would not decrease and that the horizontal vibration of the vehicle body floor surface would be reduced.

FIG. 1 shows the center of gravity of a vehicle body with a vehicle body tilting device,
It is explanatory drawing which shows the relationship of the inclination center of a vehicle body, and the height of a pillow spring center. Here, G is the center of gravity of the vehicle body, O ₀ is the center of inclination of the vehicle body, O ₁ is the center of the axial spring, and O ₂ is the center of the pillow spring. Cases [1] to [5] include the center of gravity G of the vehicle body, the center of inclination O _{0 of the} vehicle body, and the center O of the axial spring O so as to improve the running performance and riding comfort of the vehicle with the vehicle body tilting device during curved travel.
₁ is an example of a vehicle configuration in which the height relationships of the pillow spring center O ₂ are variously combined.

The case [1] is a structure of a conventional vehicle with a body tilting device, in which the lean center O ₀ of the body is as high as possible and the center of gravity G of the body is as low as possible to facilitate natural pendulum. In case [2], the tilt center O ₀ of the vehicle body is made lower than that in case [1] within a range in which a natural pendulum is possible, and the amount of movement of the center of gravity G of the vehicle body and the amount of horizontal swaying of the floor surface are kept small. This is the vehicle configuration. Case [3] differs from Case [2] by
The configuration is such that the lean center O ₀ of the vehicle body and the center of gravity G of the vehicle body are simultaneously lowered as much as possible to further improve the performance of the vehicle with the vehicle body leaning device.

The case [4] is different from the case [3] in that
By mounting the pillow spring at a high position while keeping the same height of the body center of inclination O ₀ and the center of gravity G of the body, the body tilt by the body leaning device is caused by the centrifugal force and the spring action of the pillow spring during curved traveling. This is a configuration in which the vehicle body is tilted inward by several degrees in addition to the angle to the inside of the curve to improve the riding comfort of the vehicle with the vehicle body tilting device.

The case [5] has a vehicle structure in which the bogie with a vehicle body tilting device for a railroad vehicle according to one aspect of the present invention is mounted. The case [4] has a pillow spring center O ₂ and a center of gravity G of the car body. While the height remains the same, the center of inclination O ₀ of the vehicle body is the center of gravity G of the vehicle body.
The car body tilting device is configured to be lower, and when the car body is tilted inside the curve with a curve, the center of gravity of the car body is moved to the inside of the track center of the curve to reduce the wheel load on the inner track side of each bogie. I am trying to suppress it. By constructing the center of lean O ₀ of the vehicle body as low as possible and the center of the pillow spring O ₂ as high as in case [5], the running performance and the riding comfort, which were the problems of the vehicle with the body leaning device, can be simultaneously and significantly improved. It becomes possible to improve.

[0020]

Embodiments of the present invention will be described below. First, with reference to FIGS. 10, 11 and 12, a rocking support mechanism for a vehicle body of a bogie with a vehicle body tilting device for a railway vehicle according to the present invention will be described. The bogie with the vehicle body tilting device for a railway vehicle of the present invention uses the following two swing support mechanisms in combination. A swinging member (a pendulum beam or the like) that swings around the vehicle body tilt center in the lower part of the vehicle body and its drive actuator (hereinafter referred to as a pendulum mechanism): Provided between the swinging member arranged on the upper part of the vehicle body (upper support frame) and the vehicle body Elastic support means (hereinafter referred to as a pillow spring tilt mechanism):

FIG. 10 is a front view schematically showing a swing support mechanism for a vehicle body in a bogie with a vehicle body tilting device for a railway vehicle according to an embodiment of the present invention. FIG. 11 is a front view schematically showing a state where the pendulum mechanism is activated in the bogie with a vehicle body tilting device for railway vehicles shown in FIG. 10. 12 is the same as FIG.
FIG. 3 is a front view schematically showing a state in which a vehicle body leaning mechanism using a pillow spring is activated in the bogie with a vehicle body leaning device for a railroad vehicle.

In FIG. 10, a vehicle body 1 (hatched) is a relatively soft pillow spring 2 such as an air spring.
Is supported by the pendulum beam 3 via. The pendulum beam 3 is placed at a considerably upper portion of the vehicle (position close to the ceiling of the vehicle body 1), and swings in an arc of radius R centering on the vehicle body inclination center O _o which is considerably below the vehicle. Move. Specifically, the lower edge of the pendulum beam 3 is an arc of radius R, and the roller type vehicle body tilting device 20 (may be a bearing guide) attached to the upper part of the support frame 5.
It is placed so that it can swing freely.

The support base 5 is erected on the bogie frame 7,
A pair of left and right columnar structures. The upper end of the support base 5 is
The vehicle body 1 extends to the vicinity of the ceiling, and its upper end is connected by a bridge 6.

The pendulum beam 3 includes a body tilt control cylinder 13
It is driven with respect to the support base 5 by (oil or pneumatic cylinder or the like). The base of the vehicle body tilt control cylinder 13 is fixed to the support frame 5, and the tip of the rod is fixed to the pendulum beam 3. That is, when the rod of the cylinder 13 extends, the pendulum beam 3 moves to the right, and when the rod of the cylinder 13 contracts, the pendulum beam 3 moves to the left.

The bogie frame 7 is supported on the axle box 22 via an axle spring 9. The shaft spring 9 is made of a relatively strong coil spring, rubber or the like. The axle box 22 is supported by an axle 26 and wheels 24. Wheel 24, axle 26, axle box 2
The second class is called a wheel set assembly.

FIG. 11 is a front view schematically showing a state in which the pendulum mechanism is operating in the bogie with a vehicle body tilting device for railway vehicles shown in FIG. That is, the vehicle body tilt control cylinder 1
The rod of 3 contracts, and the pendulum beam 3 moves (swings) to the left. Along with the swing of the pendulum beam 3, the vehicle body 1 supported by the pendulum beam 3 also leans to the left about the vehicle body tilt center O _o by an angle α. At this time, the center G of the vehicle body 1 is
It has moved to the left side G ′ by the distance S.

Inclining the vehicle body 1 to the left as shown in FIG.
This is when the vehicle is traveling on a curved track centered on a point on the far left side of the vehicle. In such a case, a centrifugal force acts in the right direction in the figure, but the vehicle body 1 is tilted in order to apparently cancel this centrifugal force in the vehicle body 1. It is one of the features of the present invention that the center of gravity of the vehicle body 1 moves leftward from G to G ′, that is, inside the curve when the vehicle body 1 is actively tilted in this way. By moving the center of gravity, the wheel weight of the inner (left) wheel 24 'can be increased, and the decrease in wheel weight of the inner wheel due to centrifugal force can be compensated.

Next, with reference to FIG. 12, another vehicle body leaning mechanism of the railway vehicle with a vehicle body leaning device of FIG. 10, which is a vehicle body leaning mechanism by expanding and contracting a pillow spring, will be described. In FIG. 12, the vehicle body is not tilted by the active pendulum mechanism. As in the case of FIG. 11, when the vehicle is traveling on a curved track centered on a point on the far left side, centrifugal force acts on the right side of the figure. The centrifugal force is canceled by the moment due to the difference in the reaction force of the pillow springs 2 supporting the vehicle body 1 and the oblique component of gravity due to the inclination of the vehicle body 1 due to the uneven expansion and contraction of the left and right pillow springs 2. As a result of such an action, the vehicle body 1 is swung to the right around the point O ₃ which is substantially the center of both pillow springs 2, and tilted to the left.

In the bogie with a body tilting device for a railroad vehicle of the present invention, the two body tilting mechanisms described above are mixed or either of them is selectively operated depending on the case. Of the tilt mechanism by the pendulum mechanism and the pillow spring
Mode that activates both: In this mode as well, the inclination by the pillow spring has an additional meaning based on the inclination of the vehicle body by the pendulum mechanism. For example, when starting or stopping the vehicle body leaning prior to the generation or disappearance of centrifugal force at the entrance or exit of the relaxation curve so that the leaning operation of the vehicle body is not delayed, the leaning by the pendulum mechanism is used. In this mode, the actual inclination angle is measured moment by moment and fed back to the control device, the inclination of the pillow spring is subtracted from the target vehicle body inclination angle at that time, and the remaining angle is controlled as the required inclination angle by the pendulum mechanism. It will be.

Modes for operating the pendulum mechanism only:
This is the most common mode, in which you lock the tilt mechanism with pillow springs,
Only the pendulum mechanism is activated. As a concrete means for locking the inclination of the pillow spring, there is a means provided with a height adjusting device for the pillow spring so as to keep the height of the pillow spring constant. For example, a device that is generally put into practical use when an air spring is used as a pillow spring constantly measures the height of the air spring, and supplies air to the air spring when the height deviates from the reference height. This is a device that works to keep the height of the air spring constant. However, even when such a device is provided, there is a dead zone in the height adjustment operation and the time delay of the adjustment operation of the height adjustment device.
The pillow spring also causes the body to tilt slightly. for that reason,
Since the lean angle of the vehicle body always tends to be positive, the lateral steady acceleration is small and the riding comfort is improved. Even in this mode, if the control of the pendulum mechanism fails,
Switching to a mode in which the pillow spring is used for inclining has an advantage that the riding comfort can be prevented from being extremely deteriorated.

Only the tilt mechanism using the pillow spring is made.
Mode to move: When the control device of the pendulum mechanism fails, the tilt mechanism by the pillow spring is activated to prevent the riding comfort from becoming extremely bad. Also,
When a vehicle travels in a line section where there is no curve data necessary for control by the pendulum mechanism, if the vehicle is driven by using the tilt mechanism with this pillow spring, the riding comfort will not be so bad and it will be better than a non-pendulum vehicle. There is an advantage that it can run at high speed. As a specific means for preventing the pendulum mechanism from tilting, there is a method in which the control device of the pendulum mechanism is turned off and the movement of the pendulum beam is fixed by a vehicle body tilt suppressing cylinder. Further, in order to make the most of the tilting mechanism by the pillow spring, there is a method in which the height adjusting device of the air spring is not operated or the air chambers of the left and right air springs are connected by a communication pipe.

Next, a case where the bogie with a vehicle body tilting device for a railway vehicle according to the present invention is applied to an articulated vehicle will be described with reference to the drawings. FIG. 2 is a side view when a bogie with a vehicle body tilting device for a railway vehicle according to an embodiment of the present invention is applied to a connecting vehicle and is arranged between vehicle bodies. FIG. 3 is an arrow view of the bogie and the vehicle of FIG. 2 as seen from AA. FIG. 4 is a view of the bogie and the vehicle of FIG. 2 as seen from the line BB. 5 is shown in FIG.
5 is a detailed perspective view of a bearing guide constituting a bearing guide type vehicle body tilting device used in the bogie of the embodiment of FIG. 4. FIG. FIG. 6 is a view of the bogie and the vehicle of FIG. 2 as seen from C-C. FIG. 7 is a front view of a bogie according to one embodiment of the present invention, which has a vehicle body tilt suppressing actuator that holds the vehicle body in a neutral position when the vehicle body tilt control is stopped or when the vehicle body tilt control fails.

Here, 1 is a vehicle body, 2 is a pillow spring, (air spring), 3 is a pendulum beam, 4 is a vehicle body tilting device (bearing guide type), 5 is a support frame, 6 is a connection of the support frame, 7 Is a bogie frame, 8 is an axle box supporting device, 9 is an axial spring, 10
Is a wheel axle, 11 is a through passage between vehicle bodies, 12 is a yaw damper, 1
3 is a vehicle body tilt actuator, 14 is a vehicle body tilt suppressing actuator, 15 is a vehicle limit, 16 is a bearing guide block, 17 is a bearing guide rail, and 1 is a bearing guide block.
8 is a ball of the bearing guide, 19 is a seal of the bearing guide block, G is the center of gravity of the vehicle body, O ₀ is the center of inclination of the vehicle body, O ₁ is the center of the axial spring, O ₂ is the center of the pillow spring, and R is R.
Is the radius of curvature of the vehicle body tilting device guide.

The basic idea of the vehicle with a body tilting device of the present embodiment is that the pillow spring (air spring) 2 is mounted at a position as high as possible, and at the same time, the tilt center O ₀ of the car body is further than the center of gravity G of the car body. The vehicle body tilting device is configured so as to be low and close to the floor surface of the vehicle body. Therefore, one embodiment of the present invention will be described. The pillow spring (air spring) 2
As shown in FIGS. 2 to 4, the vehicle body 1 was mounted at a high position near the roof. In addition, a vehicle body tilting device (bearing guide type) 4
2 to FIG. 4 because it is difficult to set the inclination center O ₀ of the vehicle body to a height of about the floor surface of the vehicle body in the configuration in which the vehicle body is mounted between the vehicle body and the vehicle body inclining device as in the conventional vehicle body inclination device. Pendulum beam 3 and body tilting device (bearing guide type) 4 like
Similarly, the pillow spring (air spring) 2 is mounted at a high position.

Since the present embodiment is an articulated vehicle, the air spring 2
As shown in FIG. 2, the vehicle body supporting device such as a pendulum beam 3 and the vehicle body tilting device (bearing guide type) 4 support the front and rear vehicle bodies independently and can be tilted as follows. Two sets of front and rear were provided on the trolley, and as shown in these FIGS. 2 to 4, the trolley was supported by the support frame 5 rising from the trolley frame 7. Further, as shown in FIG. 6, the left and right support pedestals 5 were connected by a support pedestal connecting beam 6 to enhance the strength of the support pedestal 5.

The vehicle body tilting device (bearing guide type) 4 employs a bearing guide type vehicle body tilting device which is small in size and light in weight and easy in construction even when mounted at a high position. The details of the bearing guide forming the bearing guide type vehicle body tilting device are shown in FIG. That is, several grooves 17a are formed in the rail 17 of the arc-shaped bearing guide having the curvature radius R of the vehicle body tilting device guide,
This groove 17a and the row of balls 18 of the bearing guide circulating in the block 16 of the bearing guide are engaged with each other, and the block 16 of the bearing guide performs an arc motion centered on the center of curvature of the rail 17 of the bearing guide, and The load can be transmitted to and from the rail 17.

In the bogie of FIGS. 2 to 4, two or four sets of the bearing guides of FIG. 5 are provided between the pendulum beam 3 supporting the two pillow springs (air springs) 2 and the support base 5, and the guides thereof. The rail is mounted so that the center of curvature of the rail coincides with the center of inclination O ₀ of the vehicle body which is set to be near the height of the floor surface of the vehicle body. In addition, as shown in FIGS. 2 and 3, a pneumatic or hydraulic vehicle body tilt actuator 13 is mounted between the pendulum beam 3 and the support frame 5 to allow the vehicle body running on a relaxation curve or a circular curve to travel. The inclination of 1 is controlled to improve the riding comfort.

Next, another embodiment of the present invention will be described. In the bogie shown in FIG. 7, the pendulum beam 3 is provided to prevent the vehicle body 1 from becoming an inverted pendulum state and leaning in one direction to the left or right when the vehicle body tilt control is stopped or the vehicle body tilt control fails. A vehicle body tilt suppressing actuator 14 for sandwiching a stopper bracket 3a provided at the center of the vehicle body from the left and right and returning the vehicle body 1 to a neutral position and holding the vehicle body 1 is mounted on a connecting beam 6 of a support frame.

[0039]

As described above, according to the present invention, the center of inclination of the vehicle body is set lower than the center of gravity of the vehicle and is about the height of the floor surface of the vehicle body, or the pillow spring of the vehicle body supporting device is mounted at a high position near the vehicle body roof. By significantly changing the configuration of the car body tilting device and car body supporting device compared to the conventional pendulum car, the wheel load on the side of the curve inside the curve of each bogie is prevented from decreasing and driving performance is improved. It is also possible to improve the riding comfort by reducing the horizontal vibration of the vehicle body floor surface when the vehicle body leans, and it is possible to greatly improve the curve running performance.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a transition of a relationship between a center of gravity of a vehicle body, a center of inclination of the vehicle body, and a height of a pillow spring center of a vehicle with a vehicle body tilting device.

FIG. 2 is a side view showing a case where a bogie with a vehicle body tilting device for a railroad vehicle according to an embodiment of the present invention is applied to a connecting vehicle and is arranged between vehicle bodies.

3 is a view of the bogie and the vehicle body of FIG. 2 as seen from AA.

FIG. 4 is an arrow view of the bogie and the vehicle body of FIG. 2 as seen from BB.

FIG. 5 is a detailed view of a bearing guide forming the bearing guide type vehicle body tilting device used in FIGS. 2 to 4;

6 is a view of the bogie and the vehicle body of FIG. 2 as seen from the direction of the arrows CC.

FIG. 7 is a diagram showing a configuration of an actuator for leaning a vehicle body that holds the vehicle body in a neutral position according to another embodiment of the present invention.

FIG. 8 is an explanatory view showing a positional relationship among a vehicle body tilt center, a vehicle body center of gravity, a pillow spring center, and a shaft spring center in a conventional vehicle (pendulum car) with a roller type body tilting device with control.

9 is a schematic front view showing a state in which the vehicle body is tilted in the vehicle shown in FIG.

FIG. 10 is a front view schematically showing a swing support mechanism of a vehicle body in a bogie with a vehicle body tilting device for a railway vehicle according to an embodiment of the present invention.

FIG. 11 is a trolley with a vehicle body tilting device for railway vehicles of FIG.
It is a front view which shows the operating state of the pendulum mechanism typically.

12 is a front view schematically showing a state in which a vehicle body leaning mechanism using a pillow spring is operated in the bogie with a vehicle body leaning device for a railway vehicle of FIG.

[Explanation of symbols]

1 vehicle body 2 pillow spring (air spring) 3 pendulum beam 4 vehicle body tilting device (bearing guide type) 5 support platform 6 support platform connection beam 7 vehicle frame 8 axle box support device 9 axle spring 10 wheel axle 11 vehicle body through passage 12 Yaw damper 13 Body tilt actuator 14 Body tilt restraint actuator 15 Vehicle limit 16 Bearing guide block 17 Bearing guide rail 18 Bearing guide ball 19 Bearing guide block seal 20 Body tilting device (roller type) 22 Axle box 24 Wheel 26 Axle O ₀ Center of body inclination O ₁ Center of center spring O ₂ Center of pillow spring G Center of body center O ₃ Center of pillow spring R Radius of curvature of body tilting device guide

Claims (4)

[Claims] 1. A wheel axle assembly including a wheel, an axle, an axle box, etc., a bogie frame supported on the wheel axle assembly, a support stand that stands up to a roof of a vehicle body standing on the bogie frame, and a support. A swinging member arranged on the upper part of the mount for swinging about a vehicle body tilt center at the lower part of the vehicle body; a vehicle body tilting actuator provided between the support mount and the swinging member and a control device therefor; A bogie with a vehicle body tilting device for a railway vehicle, comprising: an elastic supporting means (pillow spring) for the vehicle body, which is provided between the member and the vehicle body. 2. A vehicle body supporting device mounted at a high position near a vehicle body roof, which comprises an axle of a railway vehicle, a bogie frame supported on the axle via an axial spring, an air spring supporting a vehicle body, and the like. A bearing guide type or roller type or link type body leaning device for leaning the vehicle body inside the curve with a curved line, and a vehicle body leaning control device including an actuator such as a hydraulic cylinder or a pneumatic cylinder for controlling the leaning of the vehicle body, In a bogie with a carbody tilting device for a railroad vehicle, comprising: a carbody support device and a support base fixed on the bogie frame for mounting the carbody tilting device at a high position near a carbody roof; Due to the curvature of the bearing guides or roller guides and the structure of the link type links, the tilt center of the car body is below the center of gravity of the car body and By setting so that when the vehicle body is tilted inwardly with a curve, the center of gravity of the vehicle body moves inward from the center of the trajectory of the curve, and the wheel weight on the inner track side of each bogie decreases. Preventing the vehicle from improving the running performance, reducing the horizontal movement of the vehicle floor surface when the vehicle leans, and improving the riding comfort, and mounting the vehicle body support device such as an air spring at a high position near the vehicle body roof. As a result, in addition to the vehicle body tilting angle by the vehicle body tilting device, the vehicle body naturally tilts inside the curve by a few degrees due to centrifugal force when traveling on a curved road, so the steady left / right acceleration on the floor surface of the vehicle body decreases and the riding comfort improves. In addition, even if the vehicle body tilt control fails, the bogie with a vehicle body tilting device for a railway vehicle is configured to prevent the ride comfort from being extremely deteriorated by the natural pendulum action. 3. A vehicle body supporting device mounted at a high position near a vehicle body roof, which is composed of an axle of a railway vehicle, a bogie frame supported on the axle via an axial spring, an air spring supporting a vehicle body, and the like. A bearing guide type or roller type or link type body leaning device for leaning the vehicle body inside the curve with a curved line, and a vehicle body leaning control device including an actuator such as a hydraulic cylinder or a pneumatic cylinder for controlling the leaning of the vehicle body, In a bogie with a carbody tilting device for a railroad vehicle, comprising: a carbody support device and a support stand fixed on the bogie frame for mounting the carbody tilting device at a high position near a carbody roof; Depending on the curvature of the bearing guide or roller type guide and the structure of the link type link, the center of inclination of the car body is below the center of gravity of the car body and the height of the car body is about the floor level. By setting so that when the vehicle body is tilted inwardly with a curve, the center of gravity of the vehicle body moves inward from the center of the trajectory of the curve, and the wheel weight on the inner track side of each bogie decreases. It prevents the vehicle body from tilting when the vehicle leans and improves the riding comfort by improving the lateral movement of the vehicle floor when the vehicle leans. By mounting it at a high position close to, the vehicle body naturally inclines inside the curve by a few degrees due to centrifugal force when traveling on a curved road, so the steady lateral acceleration on the floor surface of the vehicle body decreases and the riding comfort becomes extremely poor. A bogie with a vehicle body tilting device for railway vehicles, characterized in that 4. A vehicle body tilt control device is provided to bring the vehicle body to a neutral position in order to prevent the vehicle body from leaning in one direction to the left or right due to an inverted pendulum action when the vehicle body tilt control is stopped or the vehicle body tilt control fails. The bogie with a vehicle body tilting device for a rail vehicle according to any one of claims 1 to 3, wherein the vehicle body tilting restraining actuator to be held is added to return the vehicle body to a neutral position and hold the vehicle body.