JPS6148453B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bogie structure when a suspended vehicle is composed of a normal conductive magnetically levitated vehicle, a monorail vehicle, or the like.

Conventionally, methods for configuring a suspension center and methods for arranging a shock absorber in a suspended vehicle can be broadly classified into the following methods. Figure 1 shows an example in which a suspension system using a cross shaft 3 is arranged between a bogie 1 of a suspended vehicle and an arm 2 from the vehicle body. Movement and pitching movement are now allowed.

FIG. 2 shows an example of a suspension system using eight-shaped links 4, in which the swinging of the links determines the movement and inclination angle between the vehicle body 5 and the bogie 6.

Figure 3 shows an example in which the shock absorber 7 is arranged between the car body fishing arm 8 and the car body 9. Since there is a considerable degree of freedom between the bogie and the car body, coupled vibrations will occur unless the shock absorber is designed with great care. This results in a mechanism that is likely to cause Figure 4 shows a shock absorber 1 on the top of the trolley 10.
1, and the vehicle body 13 is suspended via the arm 12 that passes through the bogie 10. In this case, the arrangement of the shock absorber itself is very convenient.
Since the large suspension mechanism passes through the middle of the truck, this poses many problems in terms of truck design.

As mentioned above, there are various ways to configure a suspended vehicle using suspension systems, but none of them can be said to be completely perfect, and if the purpose is to reduce weight, we are waiting for the emergence of a new structure. ing. SUMMARY OF THE INVENTION An object of the present invention is to provide a suspension type vehicle bogie that is lightweight and structurally simple.

An embodiment of the present invention will be described below with reference to FIGS. 5 and 6. Fig. 5 shows an example in which the suspension type vehicle bogie of the present invention is applied to a normal conductive magnetically levitated vehicle, and shows a cross section of the bogie center section taken in a direction perpendicular to the longitudinal direction of the vehicle. The figure shows a partially omitted perspective view of this truck structure. First, the configuration of the truck structure will be explained with reference to FIGS. 5 and 6.

Bogie side beams 14a and 14b are connected at the middle beam 15 and end beams 35a and 35b at the ends to form a strong bogie underframe 14. From the side beams 14a, 14b of this bogie frame 14, arms 18a, 1
8b, 18c...... are protruded, and the levitation electromagnet 1
9a, 19b, 19c......, and an arm 20 extending from above the side beams 14a, 14b.
a, 20b, 20c... are guide electromagnets 21
a, 21b, 21c...... are held. The above-mentioned levitation electromagnets 19a, 19b, 19c......
The guide electromagnets 21a, 21b, 21c face the levitation rails 22a, 22b, and the guide rails 23a, 23b, and a gap sensor (not shown) detects the gap between the electromagnets and the rails, and as necessary. Using the value obtained by an acceleration sensor that detects the movement status of the electromagnet according to the current, the controller controls the current of each electromagnet so that the electromagnet and the orbit are always kept floating with a constant gap between them. Solid tires 36 are attached to the front and rear ends of the arms 20a, 20b, 20c, etc., so that they can support the load of the vehicle body when the levitation electromagnets are not energized. These floating rails 22a, 22b are track side plates 24a,
24b, the upper track plate 26 has a gate-shaped structure, and reinforcing ribs 25 are provided to maintain track rigidity.
a, 25b, and 27 are attached. Guide rails 23a, 2
3b is installed and fixed with shims etc. as necessary to correct manufacturing errors in the track and maintain correct alignment. A single side linear motor secondary conductor 29 reinforced by a reinforcing material 31 is disposed below the reinforcing rib 27, and an end beam 35 is provided on the side of the bogie frame 14.
Seats 37a, 37 attached to the tops of a, 35b
A single-side linear motor primary 28 reinforced by a reinforcing beam 30 is mounted oppositely so as to span b.

A bogie side beam 14 is provided at the center of the bogie frame 14.
A pair of left and right air springs 16a, 16b are disposed at the connecting portion between a, 14b and the middle beam 15. A cross beam 17 is placed on top of these air springs 16a and 16b.
The horizontal beam 17 is connected to the portal frame 32 and constitutes a part of the portal frame. The width of the cross beam 17 is sufficient to cover the air springs 16a and 16b, but the portal frame 32 passes through between the left and right side beams 14a and 14b so as to straddle the middle beam 15. The receiver 38 at the tip fits into the brackets 33a and 33b provided on the vehicle body 39, and the coupling pin 34
They are connected by a and 34b. For this reason, the crossbeam 17
A certain portal frame 32 constitutes a completely integral structure with the car body 39 when assembled, but the car body and truck can be freely separated by removing the coupling pins 34a and 34b. An anchor receiver 40 is provided on the portal frame 32, and is connected via a bolster anchor 41 between a seat 37a provided on the straddle 35a and an anchor receiver 42 provided on the center side of the truck. The vehicle body and bogie are connected in the longitudinal direction. In addition, a parking brake device, left and right solid tires, other safety stoppers, and a current collector device, which are omitted in this diagram, are installed to make up the trolley, but in order to avoid complicating the explanatory diagram and explanatory text. It goes without saying that it is actually installed in the vehicle.

Next, the functions of the suspended vehicle bogie according to the present invention shown in FIGS. 5 and 6 will be explained.

First, since the levitation effect by normal conduction magnetic levitation control has already been explained, it will be explained as a bogie function.

When the air springs 16a and 16b move up and down due to the vertical buffering effect, the portal frame 32 with the cross beam 17 and
By providing a sufficient gap with the primary reinforcing beam 30 of the single-side linear motor, the bolster anchor 41 is inclined to allow vertical relative displacement between the vehicle body and the bogie. Next, regarding the lateral displacement between the car body and the bogie, the air springs 16a and 16b allow lateral displacement and mutual expansion and contraction.
The vehicle body 39 produces a pendulum effect and is capable of displacement in the left-right direction and rolling displacement. In this case, as a feature of a suspended vehicle, it is normal for lateral movement and rolling to occur in a coupled manner, but especially with the bogie structure of the present invention, the center of rolling between the bogie and the car body is not clearly defined. Since the coupling of lateral movement and rolling does not necessarily occur, this is very advantageous in improving the ride comfort of the vehicle. In this case, the bolster anchor 41 allows this lateral displacement with rubber bushings or the like at both ends. Displacement in the pitching direction between the truck and the car body is made possible by the air springs 16a and 16b mutually displacing in the pitching direction and by the bolster anchor 41 being tilted up and down. The next swivel displacement between the bogie and the car body is achieved by the air springs 16a and 16b moving back and forth in opposite directions, and the bolster anchor 4
This is possible because 1 swings left and right. As described above, in the suspension type vehicle structure of the present invention, there is no sliding part between the bogie and the car body, and the space between the car body and the bogie is completely floatingly supported by air springs, resulting in extremely good riding comfort. It becomes possible to obtain. Next, FIGS. 7 and 8 show an example in which the bogie structure of this system is applied to a suspended monorail as a modified embodiment of the present invention.

In the case of monorail, the track 47 is the main running tire 44
Since the track 47 is constructed with the minimum width that can be suppressed by the tire treads of tires a and 44b and the bogie frame 14c, the bogie frame 14c itself ends up being composed of one beam. For this reason, the opening width below the track 47 cannot be made very large. Considering this as a condition, the air springs 16c, 1
6d are arranged in the front and rear, the cross beam 17a extends in the front and rear direction, and the portal frame 32a hangs down on both sides of the side beam 14a. At this time, the portion of the portal frame 32b that passes through the lower opening of the track 47 is required to have a small width, so one solution is to provide a separation seat 43 so that the upper and lower parts can be separated. . This lower portal frame 32b is connected to the brackets 33c and 33d of the vehicle body 39a.
They are connected to each other by connecting pins 34c and 34d. 41
The bolster anchor of a is the cross beam 17a and the side beam 14.
Connect between c in the front-back direction. Guide wheels 45a and 45b are placed at the front and rear ends of the truck to guide the truck along the track. 46a and 46b are electric motors and drive mechanisms used to drive the main running tires 44a and 44b.

In this invention, a portal frame directly fixed to the vehicle body rides on an air spring arranged on the bogie underframe, and vertical, horizontal, rolling pitching, and swivel movements are all performed by the vertical, horizontal, or tilting displacement of this air spring. Since there is no need for any mechanism to allow various movements between the car body and bogie, and there are no sliding parts, it not only improves the riding comfort of the vehicle, but also is mechanically simple and lightweight. Moreover, since a part of the car body structure is directly connected to the bogie structure, there is no risk of an accident in which the car body and bogie separate under any circumstances, something that could not be achieved with conventional vehicles. It is possible to obtain many advantages.

[Brief explanation of the drawing]

Fig. 1 is an example of the coupling structure between the body structure of a suspension type vehicle and a bogie structure according to a conventional example, Fig. 2 is an example of a coupling structure between the car body and bogie structure of a suspension type vehicle according to another conventional example,
The figure shows an example of the arrangement of a shock absorber in a conventional suspension vehicle, FIG. 4 shows another structural example of a shock absorber in a conventional suspension vehicle, and FIG. 5 shows a suspension normal conductive magnetically levitated vehicle according to the present invention. FIG. 6 is an explanatory diagram showing a central cross-section of the bogie, FIG. 6 is a perspective view for explaining the bogie of the present invention shown in FIG. 5 in an easy-to-understand manner, and FIG. FIG. 8 is a sectional view of the center of the bogie when applied to a monorail, and is an explanatory side view of the suspended monorail bogie shown in FIG. 7. 14...Bolly frame, 14a, 14b, 14c...
...Bogie side beam, 15...Bolly center beam, 16a, 16
b, 16c, 16d...air spring, 17, 17a
...Horizontal beam, 18a, 18b, 18c...Arm, 19
a, 19b, 19c... levitation electromagnet, 20a,
20b, 20c...Arm, 21a, 21b, 21c
... Guide electromagnet, 22a, 22b... Levitation rail, 23a, 23b... Guide rail, 24a, 2
4b... Track side plate, 25a, 25b... Reinforcement rib, 26... Track top plate, 27... Reinforcement rib, 28
...Single side linear motor primary, 29...
Single side linear motor secondary conductor, 30...
Reinforcement beam, 31... Reinforcement material, 32... Portal frame, 32
a...Upper portal frame, 32b...Lower portal frame, 33
a, 33b, 33c, 33d...Bracket, 3
4a, 34b, 34c, 34d...Connection pin, 3
5a, 35b... end beam, 36... solid tire, 37a, 37b... seat, 38... support, 39,
39a...Vehicle body, 40, 42...Anchor holder, 4
1, 41a... Bolster anchor, 43... Separation seat, 44a, 44b... Main running tire, 45
a, 45b... Guide wheel, 46a, 46b... Main motor and drive device.

Claims (1)

[Claims] 1. Bolster anchors for restraining in the front and back direction and air springs for buffering are installed between the bogie underframe and a portal frame that straddles the center of the bogie underframe and is connected to the vehicle body. A suspension type vehicle bogie characterized by having a configuration that allows free movement between the body and the bogie by vertical, horizontal, and inclination displacements of air springs. 2 The above-mentioned bogie underframe has a frame structure including two left and right side beams and a middle beam connecting the center portions, and a pair of left and right air springs are arranged in parallel at both ends of the middle beam of this bogie frame. The suspension type vehicle bogie according to claim 1, wherein both air springs support a portal frame connected to the vehicle body across the center beam. 3 If the above-mentioned bogie underframe has one central side beam, a plurality of air springs are arranged in parallel in the longitudinal direction of this side beam, and a support is placed on top of this air spring. 2. The suspension type vehicle bogie according to claim 1, wherein the portal frame is connected to the vehicle body by straddling a central beam of the bogie frame.