JPS593083B2 - Trolley device for normal conductive magnetic levitation vehicle - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a normally conducting magnetic levitation vehicle incorporating a safety wheel that receives the weight of the vehicle when the vehicle body is abnormally grounded or when the electromagnet is not energized. The present invention relates to a bogie device for a floating vehicle.

[Technical background of the invention and its problems]

The basic configuration of a normally conductive magnetic levitation vehicle is shown in FIG.

Levitation electromagnets b, b, and guide electromagnets c are mounted on the bogie frame a.
, c, and the respective levitation rails d.

d and guide rails e, facing each other with a gap.

Then, the gap is detected and the electromagnetic current is controlled to levitate the bogie frame a onto the rail.

A vehicle body g is placed on a bogie frame a via air splashes f and f.

Further, a linear motor is attached to the bogie frame a, which is installed in the same way as the rails d, d, e, and e, and runs and stops by the thrust generated between it and the near motor 22 secondary plate i.

Next, what is shown in Figure 2 is a safety wheel Jy added to the above thing.
It is the one with the letter J attached.

Safety wheels j. j is pivotally supported on a bracket on the lower surface of the vehicle body g via k, and faces the lower running rail 1.1.

Although not shown, there are safety wheels J on the bogie underframe a.

A slider is installed in a position where it does not interfere with the running rails 1 and 1, and when the levitation electromagnets S and B are demagnetized and the bogie frame a is lowered, it floats in contact with the running rails 1° ■. The electromagnets (S, B) and the levitation rails (C, C) should not be separated by a large distance in preparation for re-levitation.

When the vehicle body g is lowered by releasing the internal pressure of the air splashes f and f, the safety wheels JtJ come into contact with the traveling rail 1.1 and receive the vehicle body load.

Therefore, when the air splashes f, f are acting, there is no contact between the safety wheels J, J and the running rail, and a gap is taken that is larger than the gap between the slide plate and the running rail 1.1.

When the vehicle is stopped for a long time, the air from the air splashes f and f is removed to lower the vehicle body g, and the vehicle body g is directly supported on the traveling rail 1.1, so the load on the levitation electromagnets S and B is reduced. do.

Naturally, the excitation current is reduced, which suppresses the temperature rise of the electromagnets S and B, and is effective in reducing the weight of the electromagnet.

Even when re-energizing the demagnetized levitation electromagnets S and B to re-levitate them, by doing so with the air springs f and f removed, the load during levitation is limited to the weight of the bogie underframe a. This is effective in reducing the need for levitation electromagnets because all you have to do is think about it.

The safety wheels J, J have the above-mentioned effectiveness, and at the same time, they originally run in contact with the running rails 1, 1 when the vehicle body g bounces significantly.
The problem with this is steering when driving around curves.

If this steering is not performed properly, there is a risk of flying out of the curve.

In addition, abnormal wear of the safety wheels may occur due to the influence of the slip angle.

[Purpose of the invention]

In order to solve these problems, it is an object of the present invention to provide a bogie device for a normal conductive magnetically levitated vehicle, which is equipped with safety wheels and which provides steerability by making the safety wheels follow the swivel motion of the bogie. .

[Embodiments of the invention]

An embodiment of the present invention will be described in detail below with reference to FIGS. 3 and 4.

Bogie underframe 1, levitation electromagnet 2゜2 built into it, guide electromagnets 3, 3, levitation rails 4, 4, guide rails 5, 5, IJ near motor next 6, secondary plate 7 The configuration remains unchanged.

An upper rocking pillow 9 is placed on the truck frame 1 via air springs 8, 8.

The vehicle body 10 is rotatably coupled to the upper rocking pillow 9 by a center plate 11, and a portion of the vehicle body load is received by side supports 12, 12 on both sides.

A safety wheel 14.14 is pivotally supported by an arm 13.13 extending downward from the upper rocking pillow 9.

Furthermore, guide wheels 15.15 are pivoted laterally.

The safety wheels 14.14 are opposite the running rails 16.16, and the guide wheels 15,15 are opposite the said guide rails 5,5.

As shown in FIG. 3A, for the running rails 16, 16,
A slider 1B is provided on the lower surface of one of the middle beams of the bogie underframe 1, and is regulated to prevent the bogie underframe 1 from falling over a dimension of H2.

As a result, the levitation electromagnets 2, 2 do not become far apart from the levitation rail 4, and during the first levitation, the levitation electromagnets 2, 2 can perform sufficient levitation with an extremely small electromagnetic capacity. .

On the other hand, by setting the gap H1 between the safety wheel 14.14 and the running rail 16°16 to be larger than the dimension H2 between the slider 1B and the rail 16, it is possible to
Even if there is a large irregularity in the slider iB and the rail 16 comes into contact with each other, the shock is not transmitted directly from the safety wheel 14 to the upper rocker pillow 9, and the riding comfort of the vehicle is ensured. It is considered.

The upper rocker pillow 9 is provided with a polster anchor 17° 17 and is coupled to the bogie frame 1, and vertical displacement by the air springs 8.8 is allowed, but the upper rocker pillow 9 is not allowed to move in the longitudinal direction and swivel. and the bogie frame 1 are restrained so that they have the same displacement.

This is done to prevent the negative effects caused by the friction effect during the relative movement between the heave pillow and the bogie frame, and is mainly used in new type railway vehicle bogies.

On the other hand, it is also possible to use the sliders used in old-style railway vehicle bogies and omit the bolster anchors.

That is, as shown in FIG. 7, the middle beam 1A of the bogie underframe 1
At the left and right ends of the frame side slider IC, IC are arranged in front and back,
There are slide plates 13A, 13A on the inside of the arms 13, 13 of the upper rocking pillow 9.
If these are arranged and made to slide, the same effect as the bolster anchor 17 described above can be expected.

Here, the slider 1B provided on the lower surface of one of the middle beams of the bogie frame has a gap H2 with the running rail 16, and the safety wheel 14 is set so as to have a gap H1 with the running rail 16. There is.

In this case, when the internal pressure of the air splash 8 is adjusted normally, the gap H2 between the slider 1B and the running rail 16 is
Even if the slider 1B contacts first due to a large track irregularity, the impact is buffered by the air spring 8, and when the air spring 8 is deflated, , the vehicle body load is slider 1B
It is devised so that it acts more directly on the running rail 16 than the safety wheel 14, regardless of the situation.

Reference numeral 18 indicates a beam that supports each rail 4, 5.6 and the linear motor secondary plate 7, 19 indicates a girder that supports the beam, and 20 indicates a pier that holds the girder 19 at regular intervals.

With the above structure, the safety wheels 14, 14 do not come into contact with the running rails 16, 16 during normal driving, and when the vehicle body 10 lowers due to a large bounce, the air springs 8, 8 are When the vehicle body 10 is lowered by falling out, it touches the running rails 16, 16 and supports the vehicle body 10.

When the upper rocker pillow 9 oscillates abnormally, the guide wheels 15.15
contacts the guide rails 5,5.

In such cases, especially when on a curve, the safety wheels 14
．． Although there is a problem with the X steering performance of 14 itself, the bolster anchor 17.
17 or the upper rocking pillow 9, that is, the safety wheel 14,
Since the safety wheels 14 are guided, the safety wheels 14,
14 is not likely to jump out from the running rail 16.16.

In addition, the slip angle prevents abnormal wear of the safety wheel tires, which conventionally tends to occur.

Also, when stopped for a long time, the air springs 8, 8 are deflated and the safety wheels are brought into contact with the running rail, so the levitation electromagnet 2,
2 only needs to support the weight of the truck, so the excitation current is reduced and the temperature rise of the electromagnet can be suppressed.

Furthermore, when the levitation electromagnet is demagnetized, the bogie descends and rests on the running rail on the slider, but at this time as well, the internal pressure of the air springs 8, 8 is lowered so that the safety wheels 14, 14 can take the weight of the car body. Then, the attraction force of the levitation electromagnet during re-levitation only needs to be considered based on the weight of the truck, so the capacity of the electromagnet can be set small, which is effective in reducing weight.

When lifting the car body by increasing the internal pressure of the air springs 8, 8 after levitating the bogie, the gap with the levitation rail is small, so the above small capacity levitation electromagnet is sufficient to lift the car body. Is possible.

〔Effect of the invention〕

As described above, the bogie device of the present invention is different from the conventional one in which a car body is mounted on a bogie via an air spring, by interposing a lifting pillow between the air spring and the car body, and attaching safety wheels to the lifting pillow. By lowering the internal pressure of the air spring and taking the weight of the car body with the safety wheels, it is possible to make the levitation electromagnet lighter and smaller, and at the same time, a bolster-anchor, etc. is installed between the bogie and the bobbing pillow. This makes it possible for the safety wheels to follow the swivel displacement of the bogie, which improves the steering performance of the safety wheels on curved sections and greatly prevents wear, making it extremely effective as a bogie device for normal conductive magnetically levitated vehicles. It is highly characteristic.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view explaining the principle of a normal conductive magnetically levitated vehicle, Fig. 2 is a longitudinal sectional front view showing an improved version of the same, Fig. 3 is a longitudinal sectional front view of the device of the present invention, and Fig. 3A is a slider and running vehicle. Figure 4 is a partial cross-sectional view showing the relationship between the rails, Figure 4 is a vertical side view of the same, Figures 5 and 6 are perspective views of the same main parts, Figure 7 is a sliding plate for sliding the upper rocker pillow and the bogie frame. FIG. 3 is a cross-sectional view at the center of the truck showing the moved structure. 1...Bogie frame, 1 person...Bolly frame middle beam, 1B...Slider, 1C...Slide board, 2... - Levitation electromagnet, 3... Guide electromagnet, 4... Levitation rail, 5...
・Guide rail, 6... Linear motor next, 7.
... Linear motor secondary plate, 8 ... Air spring, 9 ... Upper swing pillow, 10 ... Vehicle body, 1
3A...Sliding plate, 14...Safety wheel,
16... Running rail, 17... Bolster anchor, Hl... Gap between safety wheel and running rail in normal situation, H2... Normal situation The gap between the slider and the running rail.

Claims (1)

[Claims] 1. A spring, such as an air spring whose spring force is adjustable, is installed on a truck incorporating a levitation electromagnet facing a levitation rail and a guide electromagnet facing a guide rail using the side surface of the levitation rail. The lifting pillow is placed through a device, and a polster anchor or slide plate is interposed between the trolley and the lifting pillow to allow vertical displacement by the spring device but prevent back-and-forth and swivel movement. When the spring force of the above-mentioned spring device is small, the downwardly extending part of the lifting pillow comes into contact with the upper surface of the rail, and when the spring force is large, it floats on the rail, and the lower extension part of the bogie underbody frame provided on the bogie underframe is in contact with the upper surface of the rail when the spring force of the spring device is small. 1. A bogie device for a normally conductive magnetically levitated vehicle, characterized by having a bogie device for a normal conductive magnetically levitated vehicle, comprising a bogie device in which a safety wheel is held at a position higher than a slider that defines an amount of fall from a slider.