JPS6015253A - Car travelling stabilizing method using elastic side pad andelastic side pad device - 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 The present invention relates to a method for stabilizing the running of a railway vehicle, particularly a freight car, using elastic side supports, and an elastic side support device. The spring system is a dual system consisting of a pillow spring supported by the pillow and an axle spring supported on the axle box of the bogie frame. 3-71 Dog 1-Doing 1
It has a structure that uses an axial spring to cope with the vibrations caused by the small angle and the λ vibration of the fishing gear. However, in terms of running speed, number of cars manufactured, manufacturing cost, etc., freight cars use relatively simple bogies with only trench springs, without axle springs, and the difference between empty and loaded. Despite the large difference in l quantity, it is unavoidable that the running performance is inferior to other car models due to restrictions on the height of the coupler and the inability to make the pillow springs softer. It is a place. Particularly in vehicles such as tank cars and hopper cars, which have a large payload and a high center of gravity, wheel load fluctuations (variations in the vertical load on the wheels) due to body rolling caused by track irregularities. There is a tendency for the proportion of wheel unloading (reduction in wheel load), which is one of the causes of so-called competitive derailment accidents, to increase.

This can be explained in more detail with respect to Figures 1 and 2.
Taking a tank car as an example, the weight of the car body is 10, and the weight is 2.
→ Pillow beam 4 → Pillow is 3- 2F + I/m surface 11) Sea turning circle input sea In the curved section, the cart rotates as much as necessary around center point 2 (hereinafter referred to as ``turning the cart''), making it easier to pass through the curve. When the vehicle is stationary, the side support 3 normally has 6 points between it and the vehicle body side support 33 formed on the opposite side of the vehicle body.
~8 gaps are provided 4 to separate the vehicle body, and when the vehicle body tilts to a certain extent, the vehicle body side side supports contact the side supports 3 to prevent extreme inclinations, but the side supports 3
Since the vehicle itself is a rigid body, it cannot absorb the energy of rolling of the vehicle body induced by the irregularity of the track, and instead the rolling is repeated due to the repulsion effect, resulting in an increase in the period of rolling of the vehicle body and the distortion of the track. When the cycles match and a resonance state occurs, the rate of wheel weight loss described above increases, resulting in a state in which the vertical load on the wheels decreases.

Under such conditions, a certain amount of lateral force on the wheels (due to curves, irregularities in the track, etc.) increases the lateral force exerted on the wheels.

In order to solve these problems, the inventor of the present invention replaced the truck in the United States with a truck with a larger diameter core 2 (hereinafter referred to as the "large diameter core method") and conducted a running test. , it was confirmed that stable running performance could be obtained.0 However, this method does not suffice to replace just the core, but requires replacing the conventional trolley with a new one with a larger diameter. There is an economic problem.

The present invention aims to provide a vehicle running stabilization method that can achieve an effect equal to or better than that of a large-diameter off-center system without replacing the bogie, and an elastic side support device used in the method.

The present invention will be explained according to the embodiments shown in FIGS. 3(a) to 5(o)K.

10 is an outer box consisting of a box-like body between the lower surfaces, and 12 is an inner box consisting of a box-like body between the upper surfaces. The lower surface of the inner box 12 is fixed with a port 4'' to the upper surface facing the vehicle body side support 33 of the pillow beam 40 in FIG.

Horizontal protrusions 11.11 are integrally formed at the lower ends of the front and rear surfaces of the outer box IO in the longitudinal direction of the vehicle body, and
Horizontal protrusions 13.13 are also integrally formed in the middle portions of the front and rear surfaces of the inner box 12 in the longitudinal direction of the vehicle body.
The outer box 10 is set so that it can be placed so that the inner surface of its surrounding wall maintains a certain gap from the opposing outer surface of the surrounding wall of the inner box 12. box 10
In this embodiment, three coil springs 14 are arranged in parallel between the lower surface of the upper plate of the inner box 2 and the upper surface of the bottom plate of the inner box 2 facing therebetween. A pickpocket plate 18 is provided on the upper surface of the outer box 10 facing the vehicle side support 33, and when the vehicle is stationary, the pickpocket plate 18 is
directly supports the vehicle body side support 33 and has a through hole formed therein, and a bolt 16 is inserted into the through hole and tightened with a nut 17 to form a predetermined gap 19 between the protrusions 11 and 13. be able to. 151 is the protrusion 13
A required number of adjustment liners 1 having bolt through holes in the adjustment liner receiver 151 are fixed on the adjustment liner receiver 151.
By placing 5, Pol) 16. 17) and sew by adjusting the gap 19. Place the side supports with this configuration on the pillow beam 4 in Fig. It is fixed so as to face the side support 33.

The gap 19 between the horizontal protrusions 11 and 13 is filled with a bolt 16.
, Natsu) 17 to maintain a predetermined gap with or without applying an initial load to the spring 14, and when the vehicle is stationary, the slide plate 18 does not directly support the vehicle body side support 33. ◎In this condition, if the vehicle body tilts due to rolling vibration while the vehicle is running,
The car body side side support 33 compresses the elastic side support via the slide plate [8], and the rolling energy of the car body is absorbed by the buffering effect of the coil spring [4], so vibrations are suppressed and the wheel weight is reduced to a certain extent. It is possible to stabilize the running performance by preventing the increase in paddy and running performance. 0 When the bogie turns around a curved section, the slide plate 18 and the side support 33 on the car body slide to reduce frictional resistance and reduce lateral pressure. Reduce. Side supports with built-in coil springs and the like are well known, but all of them have a structure in which a part of the static vehicle body load is distributed to the center of the vehicle at a predetermined ratio. When the vehicle is stationary, the side supports on the bogie side do not bear the weight of the vehicle body, but when the vehicle is tilted, the weight of the body is applied to the side supports on the bogie side for the first time, thereby suppressing wheel unloading due to rolling. The purpose, structure 1, action, and effect are completely different.

FIGS. 4(a) and 4(b) show a second embodiment of the present invention. In this embodiment, the elastic mechanism is replaced with the coil spring 14 in the first embodiment, and an anti-vibration rubber is used as the elastic mechanism. 22, and an oil vat 26 is used instead of the pickpocket plate 18. On the pillow beam 4, the upper plate 21. A mounting base consisting of a vertical connecting member 20 and a bottom plate 21'' is fixed, and an elastic member in which a vibration isolating rubber 22 is inserted and fixed between iron plates 221 and 222 is fixed on the upper plate 21, and on the elastic member, A bottom plate 223 having an oil vat storage chamber 25 in the center of the upper surface is attached to the iron plate 221.
Place it so that it can be attached and detached so that it covers the top. For example, three oil pads 26 are inserted and fixed into the oil bat storage chamber 25 using the partition wall 251. In this case, the oil bat 2
The upper surface of oil vat 6 is located above the upper end surface of oil vat storage chamber 25, and when the vehicle is stationary, oil vat 26 faces vehicle side support 33 without directly supporting the car body load.

In this embodiment as well, when the vehicle body is tilted due to rolling vibration while the vehicle is running, the vehicle body side support 33 may
26, the rolling energy of the vehicle body is reduced by the anti-vibration rubber 22.Similarly, wheel weight reduction prevents the ratio from increasing. Note that the oil pads 26 reduce friction on the side supports and reduce lateral pressure when the bogie turns around a curved section.

A third embodiment of the present invention is shown in FIGS. 5(a) to 5(c).

When comparing the third embodiment with the second embodiment, it is found that the structure of the vibration isolating rubber as an elastic mechanism is exactly the same as in the second embodiment, but the difference is that a roller system is used instead of the oil butt 26. are different.

A bottom plate 223 having a roller accommodating base 27 at the center of the upper surface is removably disposed on an elastic member in which a vibration-proof rubber 22 is inserted and fixed between iron plates 221 and 222 so as to cover the iron plate 221. consists of two cylindrical bodies whose cross sections form part of concentric circles and which have different radii (R1>R1) and are fixed together by welding or the like. The cross section of the cylindrical body 281 occupies a plane b that is thicker than a semicircle with a radius R8.The cross section of the cylindrical body 282 occupies a plane smaller than a semicircle with a radius R1, as shown in FIG. 5J. As shown in FIG. 5(b), when the cylinder body 282 is located at the center of the roller storage chamber 27, the shaft 2
Conical notches 283 and 284 are formed in the lower periphery of the symmetrical center about a vertical line passing through the axis of the cylindrical member 9 . on the other hand,
A conical notch 284 and a conical protrusion 31 are formed on the bottom surface of the roller storage chamber 27 corresponding to the notches 283 and 284. As will be described later, when the roller 28 rolls to the left in FIG. 5(b), the conical projection 31 fits into the conical notch 284, and the roller 2
8 rolls to the right, the conical protrusion 32 fits into the conical notch 283 to prevent the roller from shifting (horizontal movement) due to vibrations in the longitudinal direction of the vehicle, and to ensure that the center of the roller is always 029, which is set to return to the center of the storage chamber, is a concentric shaft of the roller 28, and both ends of the shaft 29 are arranged on both sides of the roller storage chamber 27 along guide fs30 with a width larger than the diameter of the shaft. It rotates horizontally without changing its height.

The truck side support having such a configuration is fixed on the sleeper beam 4.

In this case, when the vehicle is stationary, the roller 28 faces the vehicle body side support 33 so that its upper layer does not directly support the vehicle body load. When the vehicle body is tilted due to rolling vibration while the vehicle is running, the vehicle body side support 33 hits the roller 2BK, and the rolling energy of the vehicle body is absorbed by the shock absorbing effect of the anti-vibration rubber 22, thereby preventing the wheel weight from increasing. do. It should be noted that the rollers 28 can reduce the friction of the side supports and reduce lateral pressure when the bogie turns around a curved section, and can achieve the same purpose as in the first and second embodiments. In the third embodiment, even if the elastic mechanism in the filEl embodiment is used as the elastic mechanism, or the elastic mechanism in the second or third embodiment is used as the elastic mechanism in the first embodiment, Pickpocket board 18. The oil pad 26 and roller 28 may be used throughout each embodiment.

[Brief explanation of the drawing]

11- FIG. 1 is a front view showing an example of a tank car, FIG. 2 is a sectional view taken along line A-i in FIG. 1, and FIG. 3(a) is a sectional view showing the first embodiment of the present invention. FIG. 3(b) is a side view showing the first embodiment of the present invention, FIG. 3(C) is a sectional view of FIG. 3(b),
FIG. 4(a) is a plan view showing the second embodiment of the present invention, FIG. 4(6) is a front view of FIG. 4(a), and FIG. 5(a) is a plan view showing the second embodiment of the present invention. A plan view showing an example, FIG. 5(b) is a sectional view of FIG. 5(a), and FIG. 5(e) is a BB-B of FIG. 5(a).
"It is a line sectional view. 1... Vehicle, 9... Bogie frame, 14... Spring mechanism,
18.26... Sliding member, 22... Anti-vibration rubber, 28
1, 282 conflict・-Koro, 29...Koro's concentric axis, 3
3... Side support 12 on the vehicle body side - Fig. 1 Fig. 2 Fig. 3 (α) Fig. 3 (b) Fig. 3 (c) JP-A-15253 (6)

Claims (1)

[Claims] l) When the vehicle is stationary, the side supports on the bogie side are set so as not to directly support the vehicle body, and the side supports on the bogie side are elastically supported within a predetermined elastic range. A method for stabilizing vehicle running using elastic side supports, which is characterized by suppressing fluctuations in wheel load due to rolling. 2) The side support on the vehicle body side is fixed, and the side support on the white breath side is composed of a sliding member facing the side support on the vehicle body side, and an elastic mechanism that elastically supports part 4 within a predetermined elastic range, and The sliding member is an elastic side support device designed so that it does not directly support the vehicle body when the vehicle is stationary. 3)! The side support on the body side is fixed, and the side support on the bogie side is a roller formed by joining a concentric body member facing the side support on the vehicle body side,
an elastic mechanism that elastically supports the roller within a predetermined elastic range, and the roller is configured such that the center of the concentric circles maintains the same horizontal line over a predetermined range so that it can be moved freely; The elastic side support device is designed so that it does not directly support the vehicle body when it is stationary. 4) Elastic side support device according to claim 2 or 3, in which the elastic mechanism is a spring mechanism; 05) Elastic side support device according to claim 2 or 3, in which the elastic mechanism is vibration-proof rubber. Device.