JP3115503B2 - Truck with body tilting device 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 bogie with a vehicle body tilting device for a railway vehicle for improving the running performance of a railway vehicle in a curved track section of a railway track.

[0002]

2. Description of the Related Art FIG. 8 shows a conventional vehicle-type vehicle with a vehicle body tilting device (a pendulum) that actively controls the tilt, the center of gravity of the vehicle body, the center of tilt of the vehicle body, the center of a shaft spring, and a pillow spring (air spring). FIG. 4 is a schematic front view showing the positional relationship between centers. FIG. 9 is a schematic front view showing a state where the vehicle body is inclined in the vehicle of FIG. Here, 1 is a vehicle body, 2 is a pillow spring, 3 is a pendulum beam, 7 is a bogie frame, 9 is a shaft spring, 10 is a wheel axle, 13 is a body tilting actuator, 20 is a body tilting device (roller type), and G is The center of gravity of the vehicle body, O ₀ is the inclination center of the vehicle body, O ₁ is the center of the shaft 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 a wheel axle 1.
0, a vehicle tilting device (roller type) 20 and the like. The natural pendulum of (no actively tilt control) vehicle, in curved track section, the centrifugal force acting on the vehicle body center of gravity G, is made to the vehicle body inclination as the center of rotation of the tilt center O ₀ of the vehicle body. In recent years, a pendulum beam 3 has been used to improve the ride comfort by allowing the vehicle body to be inclined slowly and gently on a relaxed curve track provided at a curved track entrance.
A vehicle body with a control that mounts a vehicle body tilting actuator 13 such as a pneumatic cylinder between the vehicle body 7 and the bogie frame 7 and adds a centrifugal force acting on the center of gravity G of the vehicle body and a vehicle body tilt control force to actively control the tilt. Tilt devices are also in practical use. However, also in the case of the body tilting device with control, when the vehicle body tilt control fails, the natural center pendulum that tilts the vehicle only by the centrifugal force can be used. ing.

As described above, the conventional pendulum vehicle in Japan basically utilizes the centrifugal force generated during running on a curved track as the vehicle body tilting force. Therefore, as shown in FIG.
The height of _{0 is} as high as 2275-2300 mm above the rail surface, and the height of the center of gravity G of the vehicle body is as low as 1300-1500 mm above the rail surface. The moment force around the inclination center (the distance from the vehicle body inclination center to the vehicle center of gravity becomes the arm length of the moment) is increased. The height of the center O ₂ of the pillow spring is 9001 to 000 mm on most rails because of the structure of the body.
And

However, the relationship between the center of gravity of the vehicle body, the center of leaning of the vehicle body, and the height of the center of the pillow spring of such a conventional vehicle with a vehicle body tilting device has various problems in improving the performance of the vehicle with the vehicle body tilting device. And the performance cannot be improved. Because, when tilting the vehicle body in the curved track to the vehicle body tilt center around the inside of the curved track, the vehicle center of gravity G is songs
Since the track moves to the outer track side from the track center of the linear track (S between G and G ′ in FIG. 9), the wheel load applied to the wheels on the inner track side of the bogie decreases. As a result, in an extreme case, there is a risk of derailment, which is a limiting factor in improving the curved track traveling speed.

Further, in order to increase the moment force around the vehicle body inclination center due to the centrifugal force acting on the center of gravity G of the vehicle body to facilitate natural pendulum, the height of the vehicle body inclination center is set to the height of the conventional vehicle equipped with a vehicle body inclination device. With such a height, the amount of lateral movement of the vehicle body floor surface when the vehicle body is tilted increases. In that case, standing and walking passengers feel that their feet are scooped, and seated passengers also experience greater left-right vibration, which makes riding comfort worse and improves curved track traveling speed. Becomes difficult.

Recently, due to competition with automobiles and airplanes,
Improving traveling speed and riding comfort on curved tracks has become an important issue for railways. To accomplish this task,
It was necessary to change the configuration of the vehicle with the body tilting device so that the running performance and the riding comfort could be greatly improved.

[0008]

As described in the prior art, a vehicle equipped with a body tilting device that has been put to practical use in Japan has been used to enable a natural pendulum or to reduce the configuration of the vehicle. From Fig. 8, 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 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 located below the body frame. It was common to arrange.

[0009] For this reason, the vehicle at the time of the curve track traveling curve trajectories
Tilting the road inside, the body center of gravity is moved out of the curved track rail side, the wheel load of the curve inside of the truck is reduced, the curve
There was a problem that the speed improvement of the orbit was limited. Further, when the vehicle body tilt center is high, the amount of lateral movement of the vehicle body floor surface becomes large when the vehicle body is tilted, and there is a problem that the riding comfort is deteriorated. In addition, if the mounting height of the pillow spring is low, the vehicle body rolls and leans outward when traveling on a curved track , so that the vehicle body tilting angle by the vehicle body tilting device is substantially slightly reduced, and the ride comfort is deteriorated. there were.

In recent years, there has been a very strong need to further improve the traveling speed of a vehicle equipped with a vehicle body tilting device on a curved track or a comfortably curved track . An object of the present invention is to significantly change the vehicle structure of a conventional pendulum vehicle and change the relationship between the vehicle body tilt center height, the vehicle body weight center height, and the center height of a pillow spring, thereby reducing a curved track traveling speed. Even in the case of further improvement, the running performance is improved by preventing the wheel load on the inner rail side of the bogie from decreasing, and the amount of right and left sway of the vehicle body floor when the vehicle body is tilted and the rolling of the vehicle body are suppressed. It is to improve comfort.

Another object of the present invention is to mount a pillow spring of a vehicle body support device at a high position and naturally incline the vehicle body several degrees inside a curved track by a centrifugal force during traveling on a curved track , thereby to increase centrifugal acceleration. It is an object of the present invention to provide a bogie with a vehicle body tilting device for a railway vehicle, in which the influence of the vehicle body tilting device is improved by reducing the influence of the vehicle body tilting control, and the riding comfort is not extremely deteriorated even when the vehicle body tilt control fails.

[0012]

According to the present invention, there is provided a truck with a vehicle body tilting device for a railway vehicle, comprising: a wheelset assembly including wheels, an axle, an axle box, and the like; a bogie frame supported on the wheelset assembly; A support gantry that rises to the vicinity of the roof of the vehicle body that is erected on the bogie frame; a swing member that is arranged above the support gantry and swings about a vehicle body tilt center below the vehicle body; and the support gantry and the swing An actuator for tilting the vehicle body provided between members , and a centrifugal force acting on the vehicle body while the vehicle is traveling on a curved track
For tilting the car body so that it is apparently canceled in the car body.
A control device for driving an actuator; and a vehicle body elastic support means (pillow spring) provided between the swing member and the vehicle body , wherein the vehicle body tilt center is positioned with respect to the center of gravity of the vehicle body.
It is characterized by being below.

A truck with a vehicle body tilting device for a railway vehicle according to one embodiment of the present invention includes a wheel set of a railway vehicle, a bogie frame supported on the wheel set via a shaft spring, an air spring supporting the vehicle body, and the like. oil pressure control and the body supporting apparatus mounted at a high position close to the vehicle body roof, and a vehicle body tilt system, such as a bearing-guided tilting the vehicle body in the curved track inside the curved track or roller type or link type, the vehicle body inclination Including actuators such as cylinders or pneumatic cylinders ,
The centrifugal force acting on the car body while both cars are traveling on a curved track
Actuator for tilting the vehicle body
A vehicle body tilt control device for driving the vehicle body, and a support base fixed on the bogie frame for mounting the vehicle body support device and the vehicle body tilt device at a high position near the body roof. In the bogie with a body tilting device , the center of tilt of the vehicle body is lower than the center of gravity of the vehicle body and the floor of the vehicle body is tilted by the structure of the vehicle body tilting device such as the curvature of the bearing guide or roller type guide of the vehicle body tilting device or the link of the link type. by setting so that the order of the height, the vehicle body in a curved track
When tilting the curved track inside the body center of gravity curve trajectories
It moves inside the track center of the road to prevent the wheel weight on the inner rail side of each bogie from becoming smaller, improving running performance, and reducing the lateral movement of the vehicle body floor when the vehicle inclines, reducing ride comfort. There so as to improve, by mounted the body supporting device such as an air spring at a high position close to the vehicle body roof, in addition to the vehicle body tilt angle by the body-tilt system, curved track vehicle body by centrifugal force during curved track traveling Inclines several degrees naturally inside
Ride is improved by decreasing the left and right constant acceleration at the vehicle body floor for that, also, even when the body tilt control is fail, it has to prevent the riding comfort by the natural pendulum effect is extremely poor It is characterized by.

In a conventional vehicle with a vehicle body tilting device in which the vehicle body tilt center is at a high position, when the vehicle body is tilted inside a curved track , the center of gravity of the vehicle body always moves to the outer track side of the curved track , and the inside of each bogie The wheel weight on the rail side is reduced. In order to prevent the reduction of wheel weight on the inner rail side of each bogie when tilting the vehicle with the configuration of the vehicle with the conventional vehicle tilting device, the entire vehicle is moved horizontally inside the curved track in accordance with the timing of the vehicle tilting Must. However, this approach is very bulky and impractical. Further, if the tilt center of the vehicle body is at a high position as in a conventional vehicle with a vehicle body tilting device, the lateral movement of the vehicle body floor surface inevitably increases when the vehicle body is tilted, making it difficult to take countermeasures.

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 of the conventional vehicle with the vehicle body tilting device is changed so that when the vehicle body is inclined on a curved track , the inner rail side of each bogie is used. Various vehicle configurations were studied so that the wheel weight of the vehicle did not decrease and the lateral vibration of the vehicle body floor was reduced.

FIG. 1 shows the center of gravity of the vehicle body of the vehicle with the vehicle body tilting device.
It is explanatory drawing which shows the relationship between 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 tilt center of the vehicle body, O ₁ is the center of the axial spring, and O ₂ is the center of the pillow spring. Case [1] Case [5], such that to improve the curved track during running of the running performance and riding comfort of the vehicle with the vehicle body tilt system, vehicle body gravity center G, vehicle body tilt center O _0, the axial spring center O ₁ is an example of a vehicle configuration that combines the various heights of the relationship bolster center O _2.

Case [1] is a configuration of a conventional vehicle equipped with a vehicle body tilting device, in which the center of inclination O ₀ of the vehicle body is set as high as possible and the center of gravity G of the vehicle body is set as low as possible to facilitate natural pendulum. In case [2], as compared to case [1], the center of inclination O ₀ of the vehicle body is lowered as far as the natural pendulum is possible, so that the amount of movement of the center of gravity G of the vehicle body and the amount of lateral sway of the floor surface are reduced. This is the vehicle configuration. Case [3] is different from case [2]
In this configuration, the inclination center O ₀ of the vehicle body and the center of gravity G of the vehicle body are simultaneously reduced as much as possible to further improve the performance of the vehicle with the vehicle body inclination device.

Case [4] is different from case [3] in that
By mounting the pillow spring at a higher position while keeping the center of inclination O _{0 of} the vehicle body and the height of the center of gravity G of the vehicle body equal, the curve
In spring action of centrifugal force and bolster during track traveling, a few degrees of the vehicle body plus the vehicle body inclination angle by the vehicle body tilt system, the curve
This configuration is designed to improve the ride comfort of a vehicle with a vehicle body tilting device by inclining the track inside.

The case [5] has a vehicle configuration in which the bogie with a vehicle body tilting device for a railway vehicle according to one embodiment of the present invention is mounted. The case [4] has a pillow spring center O ₂ and a center of gravity G of the vehicle 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.
Configure the vehicle body tilt system to be lower, the song of the vehicle body centroid when tilting the vehicle body in the curved track inside the curved track
It is moved inward from the center of the line track to reduce the wheel load on the inner rail side of each bogie. As in case [5], the center of inclination O _{0 of the} vehicle body is as low as possible, and the center of the pillow spring O ₂
, The traveling performance and the riding comfort, which have been issues of the vehicle with the body tilting device, can be simultaneously and significantly improved.

[0020]

Embodiments of the present invention will be described below. First, with reference to FIGS. 10, 11 and 12, a description will be given of a swing support mechanism for a vehicle body included in a bogie with a vehicle body tilting device for a railway vehicle according to the present invention. The bogie with a vehicle body tilting device for a railway vehicle according to the present invention uses the following two swing support mechanisms in combination. A swinging member (a pendulum beam, etc.) swinging about the vehicle body tilt center at the lower part of the vehicle body and its driving actuator (hereinafter referred to as a pendulum mechanism): provided between the swinging member arranged on the upper body part (the upper part of the support base) and the vehicle body. Elastic support means (hereinafter referred to as pillow spring tilt mechanism):

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 one embodiment of the present invention. FIG. 11 is a front view schematically showing a state in which a pendulum mechanism is operated in the bogie with a vehicle body tilting device for a railway vehicle in FIG. 10. FIG.
FIG. 4 is a front view schematically showing a state in which a vehicle body tilting mechanism is activated by a pillow spring in the bogie with a vehicle body tilting device for a railway vehicle.

In FIG. 10, a vehicle body 1 (hatched) is a relatively soft pillow spring 2 such as an air spring.
Via the pendulum beam 3. Pendulum beam 3 is placed quite on the part of the vehicle (a position close to the ceiling of the vehicle body 1), around the body tilt center O _o located below significant vehicle, swinging an arc of radius R Move. Specifically, the lower edge of the pendulum beam 3 is on 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 base 5.
It is placed swingably.

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

The pendulum beam 3 includes a vehicle body tilt control cylinder 13
(For example, an oil or pneumatic cylinder), it is driven with respect to the support base 5. The base of the vehicle body tilt control cylinder 13 is fixed to the support base 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 the axle spring 9. The shaft spring 9 is formed 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
2 etc. are called wheelset assemblies.

FIG. 11 is a front view schematically showing a state in which the pendulum mechanism is operated in the bogie with a vehicle body tilting device for a railway vehicle in FIG. That is, the vehicle body tilt control cylinder 1
The rod 3 is contracted, and the pendulum beam 3 is moving (swinging) to the left. With the swing of the pendulum beam 3, the body 1 supported by the pendulum beam 3 is also inclined by an angle α to the left around the body tilt center O _o. At this time, the center G of the vehicle body 1 is
It has moved to G 'on the left by a distance S.

The inclination of the vehicle body 1 to the left as shown in FIG.
This is when the vehicle is traveling on a curved trajectory centered on a distant point on the 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 so that the centrifugal force apparently cancels out in the vehicle body 1. One feature of the present invention is that when the vehicle body 1 is actively tilted in this way, the center of gravity of the vehicle body 1 moves from G to G 'to the left, that is, inside the curved track . By moving the center of gravity, the wheel weight of the inner (left) wheel 24 'can be increased, and a decrease in wheel weight of the inner wheel due to centrifugal force can be compensated.

Next, with reference to FIG. 12, another vehicle body tilting mechanism of the railway vehicle with the vehicle body tilting device shown in FIG. 10, which is a vehicle body tilting mechanism by expansion and contraction of 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 trajectory centered on a distant point on the left side, centrifugal force acts on the right side of the figure. The centrifugal force is canceled out by the moment due to the difference between the reaction forces 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 uneven expansion and contraction of the left and right pillow springs 2. The result of such action, the body 1 is centered about a point O ₃ of the center of both the pillow spring 2 is swung to the right, tilt to the left.

In the bogie with a vehicle body tilting device for a railway vehicle according to the present invention, the two vehicle body tilting mechanisms are mixed or selectively operated depending on the case. Of the tilting mechanism by the pendulum mechanism and the pillow spring
Mode in which both are activated: In this mode, too, the inclination by the pillow spring has an additional meaning, based on the vehicle body inclination by the pendulum mechanism. For example, at the entrance or exit of the transition curve path , when starting or stopping the vehicle body leaning before the generation or disappearance of the centrifugal force so that the body leaning operation is not delayed,
Corresponds to the tilt by the pendulum mechanism. In this mode, the actual inclination angle is measured momentarily 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.

Mode of operating only the pendulum mechanism: This is the most common mode, in which the pillow spring tilt mechanism is locked and
Activate only the pendulum mechanism. As a specific means for locking the inclination of the pillow spring, there is a means for adjusting the height of the pillow spring so as to always keep the height of the pillow spring constant. For example, a device that is generally put to practical use when an air spring is used as a pillow spring always measures the height of the air spring, and supplies and discharges air to and from the reference spring when the air spring deviates from a 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, since a time delay of the adjusting operation of the height adjusting device and a dead zone exist in the height adjusting operation,
The pillow spring also slightly tilts the body. for that reason,
Since the inclination angle of the vehicle body is always positive, the left-right steady acceleration is small and the riding comfort is improved. Even in this mode, if the control of the pendulum mechanism fails,
Switching to the mode of tilting by the pillow spring has an advantage that the riding comfort can be prevented from being extremely deteriorated.

Only the inclination mechanism by the pillow spring is made.
Movement mode: When the control device of the pendulum mechanism fails, the tilting mechanism by the pillow spring is operated so that the riding comfort is not extremely deteriorated. In addition, when the vehicle travels along a line where there is no curved track data necessary to perform control by the pendulum mechanism, if the vehicle is driven by using the tilting mechanism using the pillow spring, it is possible to improve the riding comfort without significantly deteriorating the riding comfort. It has the advantage that it can run faster than a pendulum car. As a specific means to prevent the pendulum mechanism from tilting, turn off the control device of the pendulum mechanism,
There is a method of fixing the movement of a pendulum beam using a vehicle body tilt suppressing cylinder. Further, in order to make use of the tilting mechanism by the pillow spring, there are methods of not operating the height adjustment device of the air spring, or connecting the air chambers of the left and right air springs with communication tubes.

Next, a case where the truck with a vehicle body tilting device for a railway vehicle of the present invention is applied to an articulated vehicle will be described with reference to the drawings. FIG. 2 is a side view showing a case where the bogie with a vehicle body tilting device for a railway vehicle according to one embodiment of the present invention is applied to an articulated vehicle and arranged between vehicle bodies. FIG. 3 is a view of the bogie and the vehicle in FIG. 2 as viewed from AA. FIG. 4 is an arrow view of the bogie and the vehicle of FIG. 2 as viewed from BB. FIG.
FIG. 5 is a detailed perspective view of a bearing guide constituting a bearing guide type vehicle body tilting device used in the truck of the embodiment of FIGS. FIG. 6 is a view of the truck and the vehicle in FIG. FIG. 7 is a front view of the bogie according to one embodiment of the present invention having a vehicle body tilt suppressing actuator for holding the vehicle body at the 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 inclining device (bearing guide type), 5 is a support stand, 6 is a connection of the support stand, 7 Is a bogie frame, 8 is an axle box support device, 9 is a shaft spring, 10
Is a wheel axle, 11 is a through road between the vehicle bodies, 12 is a yaw damper, 1
Reference numeral 3 denotes a vehicle body tilting actuator, 14 denotes a vehicle body tilting suppressing actuator, 15 denotes a vehicle limit, 16 denotes a bearing guide block, 17 denotes a bearing guide rail, 1
8 is a ball of a bearing guide, 19 is a seal of a 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, R
Is the radius of curvature of the body tilting device guide.

The basic concept of the bogie with a vehicle body tilting device of this embodiment is that the pillow spring (air spring) 2 is mounted at a position as high as possible, and the tilt center O ₀ of the vehicle body is further than the center of gravity G of the vehicle body. An object of the present invention is to configure the vehicle body tilting device so as to be low and at a height near the vehicle body floor. 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 was mounted at a high position near the roof of the vehicle body 1. In addition, the vehicle body tilting device (bearing guide type) 4
Is in the configuration in which mounted between the bogie and the vehicle body as in the conventional vehicle body tilt system with carriage, it is difficult to set the inclination center O ₀ of the vehicle as high as the vehicle floor, 2-4 Like pendulum beam 3 and body tilting device (bearing guide type) 4
Also, like the pillow spring (air spring) 2, it is mounted at a high position.

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

The vehicle body tilting device (bearing guide type) 4 employs a small and lightweight bearing guide type vehicle tilting device which can be easily configured even when mounted at a high position. FIG. 5 shows the details of the bearing guide constituting the bearing guide type vehicle body tilting apparatus. That is, several grooves 17a are machined in the rail 17 of the arc-shaped bearing guide having the radius of curvature R of the body tilting device guide,
The grooves 17a and the rows 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 about the center of curvature of the rail 17 of the bearing guide, and at the same time, the movement of the bearing guide. The load can be transmitted to and from the rail 17.

2 to 4, two or four sets of bearing guides shown in FIG. 5 are provided between a pendulum beam 3 for supporting two pillow springs (air springs) 2 and a support base 5, and the guides. center of curvature of the rail, is attached so as to match the tilt center O ₀ of the vehicle which is set to be in the vicinity of the vehicle floor level. As shown in FIGS. 2 and 3, a pneumatic or hydraulic body tilt actuator 13 is attached between the pendulum beam 3 and the support base 5, and the transition curve gauge is used.
The riding comfort is improved by controlling the inclination of the vehicle body 1 traveling on a road or a circular curved track .

Next, another embodiment of the present invention will be described. In the bogie shown in FIG. 7, the pendulum beam 3 is used to prevent the vehicle body 1 from being in an inverted pendulum state and leaning in one of the left and right directions when the vehicle body tilt control is stopped or the vehicle body tilt control fails. Is mounted on the connecting beam 6 of the support gantry by sandwiching the stopper bracket 3a provided at the center of the vehicle from the left and right, and holding the vehicle body 1 back to the neutral position and holding it.

[0039]

As described above, according to the present invention, the center of inclination of the vehicle body is set to be lower than the center of gravity of the vehicle and about the height of the vehicle body floor, and the pillow spring of the vehicle body support device is mounted at a high position near the vehicle body roof. By changing the configuration of the vehicle body tilting device and the vehicle body supporting device significantly compared to the conventional pendulum wheel, it is possible to prevent wheel weight reduction on the inner track side of the curved track of each bogie and improve running performance or enables and improves the ride quality by reducing the lateral sway of the vehicle body floor during body tilt, the curve
Track running performance can be greatly improved.

[Brief description of the drawings]

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

FIG. 2 is a side view of a case in which the bogie with a vehicle body tilting device for a railway vehicle according to one embodiment of the present invention is applied to an articulated vehicle and arranged between vehicle bodies.

FIG. 3 is an arrow view of the bogie and the vehicle body of FIG. 2 as viewed from AA.

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

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

FIG. 6 is an arrow view of the bogie and the vehicle body of FIG. 2 as viewed from CC.

FIG. 7 is a view showing a configuration state of a vehicle body inclination suppressing actuator for holding a vehicle body at 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 center of gravity, a pillow spring center, and a shaft spring center in a conventional vehicle (pendulum) with a vehicle body tilting device with roller control.

9 is a schematic front view showing a state where the vehicle body is inclined in the vehicle of FIG. 8;

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

11 is a truck with a vehicle body tilting device for a railway vehicle in FIG. 10;
It is a front view which shows typically the state which the pendulum mechanism operated.

FIG. 12 is a front view schematically showing a state in which a vehicle body tilting mechanism is activated by a pillow spring in the bogie with a vehicle body tilting device for a railway vehicle in FIG. 10;

[Explanation of symbols]

REFERENCE SIGNS LIST 1 body 2 pillow spring (air spring) 3 pendulum beam 4 body tilting device (bearing guide type) 5 support frame 6 connecting frame of support frame 7 undercarriage 8 axle box support device 9 shaft spring 10 wheel axle 11 through-hole between vehicle bodies 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 tilt device (roller type) 22 Axle box 24 Wheel 26 Axle O ₀ Center of inclination of vehicle body O ₁ Center of spring axis O ₂ Center of pillow spring G Center of gravity of vehicle body O ₃ Center of pillow spring R Curvature radius of body inclination device guide

Claims (3)

(57) [Claims] 1. A wheel axle assembly including wheels, axles, axle boxes, and the like; a bogie frame supported on the axle assembly; a support frame that rises up to near a roof of a vehicle body standing on the bogie frame; A swinging member arranged at the upper part of the gantry and swinging about a vehicle body tilting center at a lower part of the vehicle body , a vehicle body tilting actuator provided between the support gantry and the swinging member , and a vehicle traveling on a curved track Working on the car body during
The vehicle so that the centrifugal force is apparently canceled in the vehicle body.
Comprising a control device for driving the body tilt actuator, the resilient support means of the vehicle body provided between the rocker member and the vehicle body (the pillow springs), and that the vehicle body tilt center is below the vehicle body centroid A bogie with a vehicle body tilting device for railroad vehicles. 2. A vehicle body supporting device mounted at a high position near a vehicle body roof, comprising a wheel set of a railway vehicle, a bogie frame supported on the wheel set via an axis spring, and an air spring supporting the vehicle body. comprises a body-tilt system, such as a bearing guide type or roller type or link type tilting the vehicle body in the curved track inside the curved track, an actuator such as a hydraulic cylinder or a pneumatic cylinder for controlling the vehicle body inclination, the vehicle is curved track Run
Appearance of the centrifugal force acting on the car body during the flight
A vehicle tilt control device that drives the vehicle body tilting actuator so as to be erased; and a vehicle tilt control device mounted on the bogie frame for mounting the vehicle body supporting device and the vehicle body tilting device at a high position close to a vehicle body roof. A fixed support base and a bogie with a vehicle body tilting device for a railway vehicle, comprising: a vehicle body tilting device such as a curvature of a bearing guide or a roller type guide of the vehicle body tilting device or a link type link; There below the vehicle center of gravity, by setting so that the order of the vehicle body floor level, the vehicle body in the curved track when tilting the curved track inside, on the inner side of the track center of the vehicle body centroid curved track It moves to prevent the wheel weight on the inner rail side of each bogie from becoming smaller, improving running performance. Spring By mounted a body supporting device such as a high position close to the vehicle body roof, in addition to the vehicle body tilt angle by the body-tilt system, curve trajectories
When running on the road , the body naturally moves inside the curved track due to centrifugal force.
Because the vehicle tilts several degrees , the steady acceleration on the left and right sides on the floor of the vehicle body decreases, improving ride comfort.Also, even if the vehicle body tilt control fails, the natural pendulum action prevents the ride comfort from becoming extremely bad. A bogie with a vehicle body tilting device for railroad vehicles. 3. When the vehicle body tilt control is stopped or when the vehicle body tilt control fails, the vehicle body tilt control device moves the vehicle body to the neutral position in order to prevent the vehicle body from tilting in one of the left and right directions due to the action of the inverted pendulum. by adding a vehicle body tilt suppressing actuator for holding, according to claim 1 or 2 body-tilt system with bogie for a railway vehicle according to to hold back the vehicle body to the neutral position