JPH0741833B2 - Railcar body support device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a vehicle body supporting device for a railway vehicle bogie, and particularly to a vehicle body supporting device for a railway vehicle bogie suitable for a bolsterless type bogie without a pillow beam. It is about.

[Conventional technology]

A conventional body support device in a bolsterless type bogie has a cylinder in which a center pin installed in a lower part of a body and a bogie frame are connected by a link, and a central axis is horizontally arranged at a connecting portion between the center pin of the link and the bogie frame. It was configured with a rubber bush. Further, the shafts passing through the tubular rubber bush are connected to the center pin or the bogie frame by two bolts, respectively.

In addition, as for the device related to this kind of device, for example, Japanese Patent Publication No.
-17708 is mentioned.

[Problems to be Solved by the Invention]

In the above-mentioned prior art, sufficient consideration is not given to workability when connecting and disconnecting the vehicle body and the bogie.
That is, since the air spring is not functioning when the vehicle body is placed on the trolley, it is necessary to move the vehicle body while the vehicle body is hung on the trolley to perform relative alignment. Was complicated. Further, the deformation caused in the bush due to the relative vertical or horizontal displacement between the vehicle body and the carriage becomes relatively large, and it is necessary to pay sufficient attention to its durability.

It is an object of the present invention to provide a vehicle body supporting device for a bogie for a railway vehicle, which can improve workability when connecting or disconnecting the vehicle body and the bogie.

[Means for Solving the Problems]

The above object is to connect a vehicle body and a bolsterless type bogie, and to connect the center pin and the bogie frame with a center pin installed at a lower portion of the car body and having a tip portion penetrating the bogie frame of the bogie. In a vehicle body supporting device for a railroad vehicle, which comprises a link, a taper shaft that is arranged vertically in the axial direction and whose outer diameter decreases downward is formed at the tip of the center pin. The direction is arranged along the traveling direction of the vehicle, and one end of the link is pivotally supported by the bogie frame via an annular rubber, and the upper end of the inner surface is directed upward at the other end of the link. There is an outer cylinder with a tapered inner diameter that increases the inner diameter and a lower inner surface that is cylindrical. A rubber ring with a tapered outer circumference is formed on the top and an inner circumference is formed with a taper. Rubber ring at the bottom This is achieved by arranging the taper shaft and the outer cylinder to be fitted with each other, and installing a presser foot that pre-compresses the rubber ring at the tip of the taper shaft of the center pin.

[Action]

Since a taper shaft is provided at the tip of the center pin and an outer cylinder having an inner surface formed into a taper shape that fits the taper shaft is arranged at the other end of the link, the shaft centers of the two are displaced. Can be engaged easily. Further, not only the fitting portion of the taper shaft and the outer cylinder is formed in a tapered shape, but one end of the link in which the outer cylinder is arranged is pivotally supported by the bogie frame via the annular rubber. Therefore, the portion of the outer cylinder can swing in the width direction of the carriage along with the deformation allowed by the annular rubber.

For this reason, when the vehicle body and the bogie are displaced from each other in the width direction, the link is rocked in the horizontal direction to allow the deviation, and the longitudinal displacement of the vehicle body due to the rocking of the link is tapered. This can be allowed by the tapered shaft and the outer cylinder.

Therefore, when the center pin installed on the vehicle body and the outer cylinder installed on the link are fitted together, the degree of freedom in the alignment of the vehicle body and the bogie can be increased, and the workability can be greatly improved.

〔Example〕

Hereinafter, embodiments according to the present invention will be described with reference to the drawings. First
1 and 2 show an embodiment of a vehicle body supporting device according to the present invention, in which 1 is a vehicle body, 3 is a bogie frame,
An air spring 2 elastically supports the vehicle body 1 with respect to the bogie frame 3. Reference numeral 4 denotes a center pin provided at the center position of the bogie frame on the lower surface of the vehicle body 1 and arranged so as to hang downward. Reference numeral 4a is a taper shaft provided at the tip of the center pin 4 via a liner 8 and is formed in a shape in which the outer diameter decreases downward. A screw is formed at the tip of the taper shaft 4a, and a presser foot 9 described later is supported by a bolt 10. Reference numeral 5 is a link that connects the center pin 4 and the bogie frame 3, and is arranged with its axial direction along the traveling direction of the vehicle. An outer cylinder 5a, which has a vertical central axis at one end of the link 5 and has a tapered inner part with an inner diameter increasing upward and a cylindrical inner part lower part, is installed at the other end. Is formed with an outer cylinder 5b having a central axis arranged horizontally. 6a and 6b are rubber rings installed between the taper shaft 4a and the outer cylinder 5a. The rubber ring 6a has a tapered outer circumference, and the rubber ring 6b has a tapered inner circumference. Then, the rubber rings 6a and 6b are provided with a presser foot 9 from below.
And, it is assembled in a state of being pre-compressed by the nut 10. On the other hand, an outer cylinder 5b of the link 5 is press-fitted into a cylindrical rubber bush 7 as an annular rubber, and a shaft 7a provided at the center of the cylindrical comb bush 7 is joined to the bogie frame 3.

The liner 8 is inserted above or below the air spring 2 when the wheel is being rectified, and is used together with the liner to keep the abnormal hose dimension h of the air spring 2 constant. It is also used to secure the horizontal position of the link 5.

According to this structure, when the vehicle body 1 is placed on the bogie and the two are connected to each other, the rubber rings 6a and 6b are interposed between the taper shaft 4a and the outer cylinder 5a of the link 5, Positioning of the vehicle body 1 and the carriage becomes easy. That is, since the contact surfaces of the taper shaft 4a, the outer cylinder 5a, and the rubber rings 6a, 6b are formed in a taper shape, even if there is some positional deviation, the taper shaft
It is possible to easily fit the outer cylinder 5a to the outer cylinder 4a. Furthermore, car body 1
Even if the carriage and the carriage are displaced in the respective width directions, the link 5
Is pivotally supported by the bogie frame 3 via the tubular rubber bush 7, so that the link 5 can be swung in the width direction of the vehicle body to easily fit the two. Further, the displacement of the mutual axial center in the vehicle body longitudinal direction due to the swing of the link 5 is allowed by the tapered portions of both. Thus, the workability can be further improved. Further, the taper shaft 4a is incorporated in the outer cylinder 5a in a state in which the rubber rings 6a, 6b are pre-compressed by the presser foot 9, so that even when a large traction force between the vehicle bodies and trucks acts, the taper shaft 4a is not compressed. The displacement can be suppressed to the minimum. Further, the rubber ring 6
Since a and 6b are formed independently with respect to the taper shaft 4a and the outer circumference 5a, even if a change occurs between them, the rubber rings 6a and 6b
It is possible to improve durability without causing excessive deformation of b.

Next, FIG. 3 shows another embodiment of the vehicle body supporting apparatus according to the present invention. In the figure, the same reference numerals as those used in the first embodiment denote the same members. In this example,
The difference from the above-described embodiment is that the taper shaft 4a is directly provided to the center pin 4. That is, when the inclination of the link 5 when the wheel is worn is slight, the above-mentioned configuration does not pose any problem. However, in the case of this configuration, the h dimension needs to be a dimension that takes wheel wear into consideration.

With such a configuration, the structure of the center pin 4 itself can be simplified.

Next, FIGS. 4 and 5 show another embodiment of the vehicle body supporting apparatus according to the present invention. In the figure, the same reference numerals as those used in the first embodiment denote the same members. In this embodiment, the connecting portion using the rubber rings 6a and 6b is used as the bogie frame 3
It is a structure provided on the side and both sides. As long as the connecting structure is such that the rubber rings 6a and 6b are interposed, there is no restriction on the installation position, and it is also possible to adopt the structure of this embodiment. Further, in the structure shown in FIG. 5, since the rubber rings 6a and 6b are installed at both ends of the link 5, it is easier to align the vehicle carriages.

〔The invention's effect〕

As described above, according to the present invention, the work can be easily performed when connecting or disconnecting the vehicle body and the bogie.

[Brief description of drawings]

1 is a front view showing an embodiment of a vehicle body supporting device according to the present invention, FIG. 2 is a side view showing a part of FIG. 1 in section, and FIG.
FIG. 4, FIG. 4 and FIG. 5 are side views showing another embodiment of the vehicle body supporting apparatus according to the present invention. 1 ... Car body, 2 ... Air spring, 3 ... Bogie frame, 4 ... Center pin, 5 ... Link

Claims (1)

[Claims] 1. A center pin for connecting a vehicle body and a bolsterless carriage, wherein the center pin is installed at a lower portion of the vehicle body and has a tip portion penetrating the carriage frame of the carriage, and the center pin is connected to the carriage frame. In the vehicle body supporting device for a railroad vehicle, the center pin is provided with a taper shaft arranged vertically in the axial direction and having an outer diameter decreasing downward, at the tip of the center pin. The axial direction is arranged along the traveling direction of the vehicle, and one end of the link is axially supported by the bogie frame via an annular rubber, and the other end of the link has an upper inner surface upward. There is an outer cylinder with a tapered inner diameter that increases toward the inside and a cylindrical inner bottom, and a rubber ring with a tapered outer circumference on the top and an inner circumference with a taper. Place the rubber rings on the bottom The taper shaft and the outer cylinder are fitted together, and a presser foot for pre-compressing the rubber ring is installed at the tip of the taper shaft of the center pin. Car body support device.