JPS62110558A - Tractive force transmission gear for railway rolling stock - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a traction force transmission device for a railway vehicle, and particularly to a traction force transmission device for a railway vehicle suitable for reducing axle load movement.

[Background of the invention]

A conventional traction force transmission device for a railway vehicle is shown in FIGS. 4 to 6.

In the vehicle shown in FIGS. 4 and 5, an inclined link 3 and a horizontal link 4 are provided to transmit traction force between the vehicle body 1 and the bogie 2. One end of the horizontal link 4 is supported by a center pin 6 fixed to the lower surface of a crossbeam 5 fixed to the lower surface of the truck 2. The other end of the horizontal link 4 is supported by a guide member 7 rotatably supported by end beams 8 disposed at both ends of the truck 2. An inclined link is connected to the other end of the horizontal link 4. In this traction force transmission device for a railway vehicle, the amount of deflection between the car body and the bogie when the vehicle passes through a curve must be compensated for by prying at the connecting portion of the guide member 7, so the guide member 7 has a considerable length. It requires For this reason, it is necessary to move the aforementioned end beam 8 to a higher location. On the other hand, on the vehicle body, near the aforementioned end beam 8,
Since the tension box 9 that houses the coupler and shock absorber protrudes downward, if the end beam 8 is at a high position, it will interfere with the tension whistle 9, so it is necessary to move the tension box 9 forward. This means that the length of the vehicle body becomes longer, which has many disadvantages such as increased weight and increased manufacturing man-hours. Incidentally, Japanese Patent Laid-Open No. 57-201756 is known as related to this device.

Furthermore, the one shown in Fig. 6 was devised as an improvement of the one shown in Figs. 4 and 5, and has a horizontal link 11 pivotally supported on the cart 2 via a horizontal pin 10, and a horizontal link 11 connected to the other end. Since it was composed of an inclined link 12 and a restraining link 13 that restrains the vertical movement of the horizontal link 11, a spherical bushing or the like must be provided on the horizontal pin part to allow the bogie to rotate when passing through a curve. Another disadvantage is that the large number of pins increases the number of wear points.

[Purpose of the invention]

An object of the present invention is to address the above-mentioned conventional problems and provide a tractive force transmission device for a railway vehicle that reduces axle load movement, is simple in structure and assembly, and is lightweight.

[Summary of the invention]

In order to achieve the above object, the traction force transmission mechanism for a railway vehicle according to the present invention includes a horizontal link pivotally supported at the center of the lower surface of the bogie, and a horizontal link pivotally supported at the end of the horizontal link, which applies a tensile force to the vehicle body. The horizontal link and the inclined link are respectively arranged in the front-rear direction along the center line of the bogie, and the extension lines of the inclined links intersect near the rail surface corresponding to the center of the bogie. A roller is provided between the horizontal link and the bogie to smooth the horizontal movement of the horizontal link and prevent the horizontal link from moving upward, thereby preventing the axle load from shifting. , the structure is simplified, assembly work is facilitated, and weight is reduced.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

A bogie 15 attached below the vehicle body 14 is equipped with wheels 17 that run on rails 16, and in order to transmit traction force between the vehicle body 14 and the bogie 15, an inclined link 18 and a horizontal link 19 are provided.
is provided.

The horizontal link 19 is a horizontal link 20 fixed to the bottom surface of the trolley 15.
It is supported at the center of the lower surface of the truck 15 by a pin 21 on the lower surface. One end of the inclined link 18 is rotatably connected to both ends of the horizontal link 19 by a horizontal pin 22. The other ends of the two inclined links 18 pass through an elastic body 24 such as anti-vibration rubber at the tip of a supporting member 23 protruding from the lower surface of the vehicle body 14 and are held by the supporting member 23. The extension line is formed so that it passes through the center of the truck 15 near the surface of the rail 16. At the other end of the inclined link 18, a holder 26 supporting a spring 25 for applying a spring force in a direction in which the two elastic bodies 24 approach each other has a gap between it and the elastic bodies 24. installed. Further, a roller 27 is rotatably provided at one end of the horizontal link 19, and a rolling portion 28 of this roller 27 is provided at the lower part of a cart end beam 29 to guide the rolling of the roller 27. .

In the device configured as described above, the traction force is transmitted from the truck 15 to the horizontal link 19 and the inclined link 18 on the rear side in the direction of travel, through the pin 21 on the lower surface of the crossbeam 20, when the direction of the arrow is the direction of travel of the vehicle body 14. The receiver 26 attached to the inclined link 18 presses the spring 25 to eliminate the gap between it and the elastic body 24 such as anti-vibration rubber, and the car body 14 is moved to the bogie 15.
Traction force is transmitted by slightly shifting the position forward. At this time, by giving an appropriate spring constant to the elastic body 24 such as vibration isolating rubber, the longitudinal motion performance can be selected favorably. The link mechanism on the front side in the traveling direction does not receive force even when one bogie moves by providing an appropriate gap between the elastic body 24 and the receiver 26, and the gap is provided with a spring that applies an appropriate force. Since the vibration performance is not affected.

According to this embodiment, since the rollers 27 can accommodate the amount of left-right relative deviation between the horizontal link 19 and the bogie 15 that occurs when the vehicle passes through a curve, the bogie end beam 2
9 doesn't need to be in a high position. Therefore, the tension box 30 of the vehicle body can be placed in a position overlapping the bogie end beam 29, so that the length of the vehicle body can be shortened, which is highly effective in reducing weight and manufacturing man-hours.

[Effects of the Invention] According to the present invention, the position of the end beam of the truck can be lowered, so
Since the tension box of the car body can be brought to a position where it overlaps with the end beam of the bogie, the length of the car body can be shortened, which has a great effect on reducing the weight of the car body and manufacturing man-hours. Furthermore, if the length of the car body is fixed, the carts can be moved to the end of the car body, which increases the space under the floor between the carts, which also has the effect of making effective use of the space under the floor.

[Brief explanation of drawings]

FIG. 1 is a front view showing one embodiment of the traction force transmission device for railway vehicles of the present invention, FIG. 2 is a bottom view of FIG. 1, and FIG.
Figure 4 is a front view of the conventional traction force transmission device, Figure 5 is a bottom view of Figure 4, and Figure 6 is a front view of the improved device of Figure 4. . 14... Vehicle body, 15... Dolly, 18... Inclined link, 19... Horizontal link, 21... Pin, 27...
Roller, 28...Rolling part.

Claims (1)

[Claims] 1. One end is rotatably supported by a pin attached perpendicularly to the center of the lower surface of the bogie attached to the lower part of the car body,
Two horizontal links arranged in opposite directions at the center along the longitudinal direction of the bogie, an inclined link whose one end is rotatably connected to the other end of the horizontal link, and the other end of this inclined link is connected to the vehicle body. In a traction force transmission device connected to the lower part of the vehicle body on the center line of the bogie, and arranged so that the extension line of this inclined link intersects near the rail surface corresponding to the center of the bogie,
A tractive force transmission device for a railway vehicle, characterized in that a roller capable of rolling in the left-right direction of the vehicle is provided at the joint between the horizontal link and the inclined link, and a rolling portion of the roller is provided below the end of the bogie.