JPH10175546A - Car body inclination device for rolling stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent penetration of dirt and dust to a bearing guide due to output and input of outside air incurring in linkage with expansion and contraction of a bellows during operation of a pendulum, to provide an increased life for the bearing guide, and to improve reliability. SOLUTION: No air hole communicated with outside air is formed in a bellows 8 to cover a rail 7, and bellows 8 on the expansion side and the contraction side, making a pair, arranged on both sides of a bearing guide body 5 are intercommunicated through an air pipe 9. By moving internal air between the bellows 8 intercommunicated through the air pipe 9, penetration of outside air is prevented from occurring and a trouble, such as wear of the bearing guide by a contamination material contained in outside air, is prevented from occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body tilting device for a railway vehicle, and more particularly to a vehicle body tilting device suitable for a vehicle having a rolling portion as a tilting mechanism.

[0002]

2. Description of the Related Art As shown in Japanese Utility Model Application Laid-Open No. 4-51861, a conventional vehicle body tilting device for rolling stock covers a roller and a roller support with bellows as a dustproof mechanism of a pendulum support device, and air flying during traveling. It prevents dust and dust from adhering to the rollers and the rolling surface of the roller receiver. FIGS. 4 and 5 show an example of a conventional body tilting device having a bellows-based dustproof mechanism and a bearing guide as a vehicle body tilting mechanism. In the figure, the bearing guide is provided between a bogie frame 4 constituting a bogie and a pendulum beam 3 supporting a vehicle body via an air spring. As shown in the right half of FIG.
And a rail 7 fixed to the pendulum beam 3 and combined with the bearing guide body 5. In the bearing guide, a portion directly exposed on the outer periphery of the rail 7 as shown in the left half of FIG. .

[0003]

In the conventional dustproof mechanism using the bellows 8, as shown in FIG. 4, the inner volume of the bellows 8 changes due to the expansion and contraction of the bellows 8 due to the pendulum operation of the bearing guide. As the inner volume of the bellows 8 changes,
The internal pressure of the bellows 8 changes, and air flows in and out through the gap 12 between the bearing guide and its mounting surface. At this time, dust and dust in the outside air were sucked into the bellows 8. The dust and dirt adhere to the bearing rolling surface of the rail 7 and then enter the bearing guide body 5 to promote wear of the bearing rolling surface and the bearing itself, thereby shortening the life of the bearing. . Further, when all of the gaps 12 into which the dust and dust enter are closed, the bellows 8 perform the same operation as the air cylinder, which hinders the body tilting operation or the fluctuation of the pressure inside the bellows 8 causes the bellows 8 to move. There was a concern that deformation would occur. Therefore, it is also difficult to prevent the intrusion of the dust and dust by closing all the gaps 12 in the attachment portion of the bellows 8.

[0004] It is an object of the present invention to prevent infiltration of a fouling substance into a vehicle body tilting mechanism and to prevent problems of the vehicle body tilting mechanism caused by the fouling substance.

[0005]

An object of the present invention is to support a vehicle body by two trucks, and to have a tilt mechanism for tilting the vehicle body in the width direction of the vehicle on each of the trucks. The mechanism comprises a rail member and a guide member engaged with the rail member, wherein the rail member is formed on an inclined locus of the vehicle body, and the guide member is movably installed along the rail member. In the vehicle body tilting device for a railway vehicle, two bellows of an airtight structure that covers the outer periphery of the rail member are installed along the rail member on both sides of the guide member, and the bellows are installed on both sides of the guide member. This is achieved by communicating each bellows with air communication means.

The object of the present invention is to provide a rail member arranged along one of the pendulum beam and the bogie frame along the width direction of the bogie, and the other of the pendulum beam and the bogie frame along the rail member. In a bogie for a railway vehicle in which a guide member that movably engages is installed, two bellows of an airtight structure that covers the outer periphery of the rail member are installed on both sides of the guide member, and on both sides of the guide member. This is achieved by connecting the installed bellows with air communication means.

An object of the present invention is to provide a bogie for a railway vehicle provided with a bogie frame and a vehicle body tilting mechanism that allows the vehicle body to tilt with respect to the bogie frame, wherein the vehicle body tilting mechanism allows the vehicle body to tilt. This is achieved by providing a cover member that has a rolling surface and covers the rolling surface, and a filter member that is permeable to air between the inside and outside of the cover member is provided on the cover member.

An object of the present invention is to provide a bogie for a railway vehicle provided with a bogie frame and a vehicle body tilting mechanism that allows the vehicle body to tilt with respect to the bogie frame, wherein the vehicle body tilting mechanism allows the vehicle body to tilt. This is achieved by providing a rolling surface, a cover member covering the rolling surface, and air supply means for supplying clean air into the cover member.

Further, by providing a pressure regulating means for maintaining the pressure in the cover higher than the atmospheric pressure in the air supply means,
The object of the present invention can be achieved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1, 2 and 3. FIG. FIG. 1 is a sectional view showing a detailed structure of a vehicle body tilting device in a railway vehicle using a bearing guide as a vehicle body tilting mechanism. In FIG. 1, a vehicle body 1 is supported on a pendulum beam 3 via two air springs 2 at two front and rear positions. The pendulum beam 3 is supported by a bogie frame 4 via a bearing guide. The bearing guide includes a bearing guide body 5.
And a rail 7, which are engaged with each other via a bearing installed inside the bearing guide main body 5, and allow relative movement in the vehicle body width direction. The bearing guide body 5 is fixed to the bogie frame 4. On the other hand, a rail 7 that engages with the bearing guide body 5 to perform a pendulum operation and tilt the vehicle body is fixed to the pendulum beam 3. The rail 7 is formed in an arc shape concentric with the center of inclination of the vehicle body 1, and is arranged with its longitudinal direction along the vehicle width direction. The bearing guide body 5 and the loop 7 are installed between the pendulum beam 3 and the bogie frame at positions symmetrical with respect to the center in the vehicle width direction. The bellows 8 is formed in a substantially U-shape, as shown in the cross-sectional shape on the right side in FIG. 3, and covers the bearing rolling surfaces provided on both the upper and lower surfaces of the rail 7 to form the pendulum beam 3. Installed. A mounting portion of the bellows 8 to the pendulum beam 3 is configured to be slidable with the relative movement of the rail 7 and the bearing guide body 5, and a dustproof lip 17 is provided at a tip of the mounting portion. Have been. The end of the bellows 8 on the bearing guide body 5 side is
It is fixed to the bearing guide body 5. Further, the end of the bellows 8 opposite to the bearing guide body 5 is fixed to a rail end fixing portion for fixing the end of the rail 7 to the pendulum beam 3. The bellows 8 is made of a material that does not have air permeability by itself, and although a fixing portion of the bellows 8 to the pendulum beam 3 and the bearing guide body 5 and a contact portion of the dust proof lip 7 are light, It has an airtight structure. Therefore, the space surrounding the rail 7 constituted by the bellows 8 is kept airtight. Each bellows 8 provided on both sides of the bearing guide body 5 in the vehicle width direction is communicated with the inside thereof in a bidirectional manner by an air guard 9.

In such a configuration, as shown in FIG. 2, when the vehicle approaches the curve of the left curve and the vehicle body 1 leans to the left in the figure, the left side of the bearing guide body 5 in the vehicle width direction, that is, inside the curved track. The bellows 8 located shrinks and its internal volume decreases. On the other hand, the bellows 8 located outside the curved track of the bearing guide main body 5 is elongated, and its internal volume increases. The internal spaces of the bellows 8 are communicated with each other by the air pipes 9, and even if the respective internal volumes change, the air moves from the one where the internal volume decreases to the one where the internal volume increases. Therefore, the pressure in each bellows 8 does not fluctuate, and the outside air containing dust such as dust and dust is not sucked into the bellows due to the decrease in the bellows internal pressure unlike the related art. As described above, since dust and the like are not sucked into each bellows 8 in accordance with the tilting operation of the vehicle body, problems such as wear of the bearing guide main body 5 and the rail 7 due to the entered dust and the like can be prevented, and the bearing guide can be prevented. Life can be extended.

The bellows provided on both sides of the bearing guide main body 5 are configured such that when the rail 7 and the bearing guide main body 5 move relative to each other, the amount of expansion and contraction becomes the same. In this case, those having the same specifications are used so that the amount of air movement accompanying the movement is equal.

Another embodiment of the present invention will be described below. In the above-described embodiment, the bellows provided on both sides of the bearing guide main body are connected to each other by the air pipe 9. However, instead of the air pipe, the bearing guide main body may be provided with a communication passage communicating between the two bellows. good. With such a configuration, it is not necessary to use the air pipe as a separate member, so that the number of parts can be reduced and the structure can be simplified.

Another embodiment of the present invention will be described. Each of the above embodiments has a communication structure in order to keep the internal pressure in each bellows constant. However, if a configuration is adopted in which dust or the like is not sucked into the bellows, it is possible to solve the problem that has been conventionally concerned. . Therefore, in this embodiment, each bellows itself has an airtight structure similarly to the above-described embodiment, and the bellows is provided with a vent provided with a filter that does not allow the passage of dust or the like that causes wear of the bearing guide. The vent hole allows ventilation inside and outside of the bellows by the expansion and contraction operation of the installed bellows, and can prevent dust and the like from entering the bellows. The filter installed in the vent needs to be periodically replaced.

According to such a configuration, a structure for communicating a pair of bellows is not required, and the configuration can be simplified. In particular, since the communication work between the bellows is not required, the assembly work of the vehicle body tilting apparatus can be simplified.

Another embodiment of the present invention will be described. In the present embodiment, it is possible to prevent a problem caused by intrusion of dust or the like even in a vehicle body tilting mechanism including a bearing guide or a roller place receiver. As a dustproof means for covering the vehicle body tilting mechanism having a rolling portion or a sliding portion such as the bearing guide or the roller place receiver, a cover using rubber capable of permitting displacement with the bellows or the roller place receiver, A cover that covers the vehicle body tilting mechanism by sequentially displacing the plate members and superimposing them may be considered. When covering the vehicle body tilting mechanism such as the bearing guide or the roller place receiver with these dustproof means, a part of the compressed air used for the air control of the railway vehicle is supplied to the inside of the dustproof means under reduced pressure. And The structure of the bearing guide will be described as an example. An air supply pipe is provided for reducing the pressure of compressed air from a source air reservoir installed on a vehicle body and supplying the compressed air to a bearing guide body. The air supply path which supplies the air sent by the said air supply pipe to the said bearing guide main body into each bellows is comprised. A pressure regulating valve is installed at an air supply port for supplying air from the air supply path into each bellows. The pressure regulating valve is set with a maximum pressure and a minimum pressure to adjust the internal pressure in order to keep the pressure in the bellows within a pressure range that does not deform the bellows more than necessary.

When the bellows shrinks and the pressure in the bellows becomes equal to or higher than the maximum pressure in accordance with the vehicle body tilting operation of the vehicle body tilting mechanism, the air in the bellows is discharged to the atmosphere by the pressure regulating valve.
Further, when the bellows expands and the inside thereof becomes lower than the minimum pressure, the pressure regulating valve operates to supply clean air from the air supply pipe into the bellows via the air supply port.

According to such a configuration, the pressure in the bellows can be kept higher than the atmospheric pressure, and the outside air does not enter the bellows. Can be prevented.

In the above embodiment, an example in which a bellows is used as the dustproof means has been described. However, even in a cover using rubber or a cover in which a plurality of plate materials are combined, the internal pressure can be maintained at or above the atmospheric pressure. As described above, it is possible to prevent the occurrence of a problem due to dust. This effect is similarly achieved by a vehicle body tilting mechanism including rollers and roller supports.

In the above embodiment, the amount of air supplied into the bellows is adjusted by the pressure regulating valve, but the amount of clean air is adjusted in accordance with the relative movement amount between the bearing guide body and the rail. The supply amount may be controlled. That is, the amount of clean air corresponding to the amount of displacement is calculated from the amount of displacement when the bellows is extended, and the valve means is operated to supply the amount of clean air corresponding to the amount of displacement from the air supply pipe. Even when the bellows shrinks, the air is discharged according to the displacement amount.

According to such a configuration, even if the tilting operation of the vehicle body tilting mechanism is performed, the inside of the dustproof means can always be kept at the atmospheric pressure or higher, so that a trouble due to dust intrusion can be prevented.

[0022]

As described above, according to the Japanese invention, the invasion of a fouling substance into the cover member covering the rolling surface of the vehicle body tilting mechanism is prevented, and the trouble of the vehicle body tilting mechanism due to the fouling substance is prevented. be able to.

[Brief description of the drawings]

FIG. 1 is a partial sectional view showing an embodiment of a vehicle body tilting device for a railway vehicle according to the present invention, viewed from a running direction.

FIG. 2 is a partial sectional view showing an operation state of the embodiment shown in FIG.

FIG. 3 is a sectional view showing an AA section and a BB section in FIG. 1;

FIG. 4 is a cross-sectional view of the same portion as FIG. 1 showing a conventional vehicle body tilting device for a railway vehicle.

FIG. 5 is a cross-sectional view showing a CC section and a DD section of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Body, 2 ... Air spring, 3 ... Pendulum beam, 4 ... Bogie frame, 5
… Bearing guide body, 7… Rail, 8… Ripple, 9…
Air tube.

Claims (5)

[Claims] 1. A vehicle body is supported by two carts,
An inclination mechanism for inclining the vehicle body in the vehicle body width direction on each of the carts, wherein the inclination mechanism includes a rail member and a guide member engaged with the rail member; The guide member is formed in a locus, and the guide member is installed on the railcar body tilting device so as to be movable along the rail member, wherein two bellows of an airtight structure covering an outer periphery of the rail member are provided by the guide member. A vehicle body tilting device for a railway vehicle, wherein the bellows installed on both sides of the guide member are communicated with each other by air communication means, the rails being installed on both sides along the rail member. 2. A rail member arranged along a width direction of a bogie on one of a pendulum beam and a bogie frame, and is movably engaged with the other of the pendulum beam and the bogie frame along the rail member. In the railcar having a guide member to be installed, two bellows of an airtight structure covering the outer periphery of the rail member are installed on both sides of the guide member, and the bellows are installed on both sides of the guide member. A bogie for a railway vehicle, characterized in that the bellows are communicated by air communication means. 3. A bogie for a railway vehicle comprising a bogie frame and a vehicle body tilting mechanism that allows the vehicle body to tilt with respect to the bogie frame, wherein the vehicle body tilting mechanism includes a rolling surface that allows the vehicle body to tilt. And a cover member that covers the rolling surface,
A bogie for a railway vehicle, characterized in that a filter member permeable to air between the inside and outside of the cover member is provided on the cover member. 4. A railway vehicle equipped with a bogie frame and a vehicle body tilting mechanism that allows the vehicle body to tilt with respect to the bogie frame, wherein the vehicle body tilting mechanism includes a rolling surface that allows the vehicle body to tilt. And a cover member that covers the rolling surface,
A bogie for a railway vehicle, comprising: an air supply means for supplying clean air into the cover member. 5. The bogie for a railway vehicle according to claim 4, wherein said air supply means is provided with a pressure adjusting means for keeping a pressure in said cover higher than the atmospheric pressure. .