JPH0227180B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elastic side support device for a railway vehicle, particularly a vehicle such as a rental car, using an elastic side support.

The spring system of the running gear (hereinafter referred to as "bogie") of general railway vehicles is a dual system consisting of pillow springs that support the pillow beams and shaft springs that support the bogie frame on the axle box. The structure is such that pillow springs are used to deal with vibrations, etc., and shaft springs are used to deal with vibrations caused by the height and torsion of the track. However, in terms of running speed, number of vehicles manufactured, manufacturing cost, etc., rental vehicles use relatively simple carts with only pillow springs and no shaft springs. Despite the large weight difference between the two cars, it is unavoidable that the driving performance is inferior to other car models due to restrictions on the height of the coupler and the inability to soften the pillow springs. There is no place. In particular, in vehicles such as tank cars and hotspot cars, which have a large payload and a high center of gravity, wheel load fluctuations (variations in the vertical load applied to the wheels) due to car body rolling caused by track irregularities are particularly important. Therefore, the rate of wheel unloading (reduction in the number of wheeled vehicles), which is one of the causes of so-called competitive derailment accidents, tends to increase.

To explain this in more detail with reference to FIGS. 1 and 2 using a tank car as an example, the weight of the car body 1 is as follows: It is conveyed in the order of 7. In addition, on the curved portion of the track, the bogie rotates as necessary around the center center 2 (hereinafter referred to as "bogie turning") to facilitate passage of the curve. When the vehicle is stationary,
The side support 3 is usually provided with a gap of 6 to 8 mm between it and a car body side support 33 formed on the opposite side of the car body. The side support 33 touches the side support 3 to prevent extreme inclination, but the side support 3
Since it itself is a block of iron, that is, a rigid body,
The energy of the car body rolling induced by the irregular track could not be absorbed, and instead the roll was repeated due to the repulsion, and the cycle of the car body rolling and the cycle of the track twisting matched, resulting in a resonance state. In this case, the rate of wheel unloading increases, and the vertical load applied to the wheels 7 decreases. In such a state, if a certain amount of lateral force (horizontal force applied to the wheel due to a curve or track irregularity) acts on the wheels 7, the risk of derailment increases.

In order to solve these problems, the present inventor replaced the conventional trolley with a trolley with a larger diameter core 2 (hereinafter referred to as the "large-diameter core method") and conducted a running test. As a result, it was confirmed that stable driving performance could be obtained. However, this method is not only sufficient to replace only the core 2, but also requires replacing the conventional truck with a new truck with the core 2 having a larger diameter, which poses an economical problem.

The present invention aims to provide an elastic side support device for a vehicle that can achieve an effect equal to or greater than that of a large-diameter center-center system without replacing the bogie.
The outer box and the inner box each have a flange, and the outer box is fitted into the inner box with the flanges facing each other, and both boxes have a predetermined elastic range at a length that creates a gap between the flanges in both boxes. An elastic side support device is fixed to the vehicle body, in which a spring material that is elastically supported within is interposed, and both flanges are connected at appropriate intervals with bolts and nuts so that they can approach and separate. At the same time, it is mounted on the trolley side facing the side support with a gap, and on one opposing surface of the side support,
It is characterized by being provided with a sliding member.

Embodiments of the elastic side support device for a vehicle according to the present invention will be described below with reference to the drawings.

Reference numeral 10 denotes an outer box made of a box-like body with an open bottom, and 12 an inner box made of a box-like body with an open top. The lower surface of the inner box 12 is fixed with bolts 4 to the upper surface of the pillow beam 4 facing the vehicle body side support 33 in FIG. Horizontal flanges 11, 11 are integrally formed at the lower ends of the front and rear surfaces of the outer box 10 in the longitudinal direction of the vehicle body, and horizontal flanges are also formed at the intermediate portions of the front and rear surfaces of the inner box 12 in the longitudinal direction of the vehicle body. 13, 13 are integrally formed. The outer box 10 is configured such that it can be placed with the inner surface of its surrounding wall maintaining a constant gap from the opposing outer surface of the surrounding wall of the inner box 12. In this setting, in this embodiment, three coil springs 14 are arranged in parallel between the lower surface of the upper plate of the outer box 10 and the upper surface of the bottom plate of the inner box 12 facing thereto. Outer box 1
0, a sliding member 18 is placed on the upper surface facing the vehicle body side side support 33, and when the vehicle is stationary, the sliding member 18 is
It is fixed with a gap provided so that it does not directly support the vehicle body side support 33. Bolt through holes are formed in the flanges 11 and 13, and by loosely inserting a bolt 16 into the through hole and tightening it with a nut 17, a predetermined interval 19 is formed between the flanges 11 and 13. be able to. Reference numeral 151 designates an adjustment liner receiver fixed on the flange 13, which is formed using bolts 16 and nuts 17 by arranging a required number of adjustment liners 15 having bolt through holes on the adjustment liner receiver 151. The distance 19 can be adjusted.

The side support having such a configuration is fixed on the pillow beam 4 shown in FIG. 2 so that the sliding member 18 faces the vehicle body side support 33.

Distance 19 between flange 11 and flange 13
is, using bolt 16 and nut 17, spring 1
A predetermined interval is maintained with or without applying an initial load to the sliding member 4, and when the vehicle is stationary, the sliding member 18 is set with a gap so that it does not directly support the vehicle body side support 33. has been done.

As described above, the present invention is for attaching the elastic side support device to the bogie side facing the side support fixed to the car body and with a gap, so it can be easily attached to the conventional bogie. , it is possible to achieve an effect equal to or greater than that of the large-diameter centering method without replacing the truck with a new truck with a larger diameter centering.

That is, according to the elastic side support device for a vehicle according to the present invention, when the vehicle body is tilted due to rolling vibration while the vehicle is running, the body side side support compresses the elastic side support via the sliding member, and the body side support is compressed through the sliding member. Rolling energy is absorbed by the buffering effect of the spring material, which suppresses vibrations and prevents an increase in wheel weight loss, making it possible to stabilize driving performance.
When the bogie turns around a curved section, the sliding member and the car body side support slide to reduce frictional resistance and reduce lateral pressure. Furthermore, if the present invention is configured as in the embodiment, the elastic range of the elastic side support device can be adjusted not only by bolts and nuts, but also by interposing an appropriate number of adjustment liners between each flange. Therefore, load conditions etc.
This also has the effect of allowing the elastic range of the elastic side supports to be easily and quickly adapted to various conditions.

[Brief explanation of drawings]

Fig. 1 is a front view showing an example of a tank car, Fig. 2 is a sectional view taken along the line A-A' in Fig. 1, and Fig. 3a is a sectional view showing an embodiment of the elastic side support for a vehicle according to the present invention. , FIG. 3b is a side view, and FIG. 3c is a sectional view of the main part in FIG. 3b. 1... Car body, 4... Pillow beam (truck side), 1
0...outer box, 11...flange, 12...inner box,
13...Flange, 14...Coil spring (spring material), 16...Bolt, 17...Nut, 19...
...Distance, 33...Car body side support.

Claims (1)

[Claims] 1. An outer box and an inner box each having a flange, the outer box being fitted into the inner box with the flanges facing each other, and a length that creates a gap between the two flanges in both boxes. , an elastic side support in which a spring material is interposed to elastically support both boxes within a predetermined elastic range, and both flanges are connected at appropriate intervals by bolts and nuts so that they can approach and separate. A device for a vehicle, characterized in that the device is mounted on the bogie side facing a side support fixed to the vehicle body side and with a gap therebetween, and a sliding member is provided on one opposing surface of the side support. Elastic side support device. 2. Claim 1, wherein the appropriate spacing between the flanges of the inner box and the outer box is adjusted by an adjustment liner that is removably provided within the spacing.
Elastic side support device for a vehicle as described in .