JPS5948259A - Truck for linear motor driving car - 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 is applicable to a linear motor. J<Regarding the bogie of the moving vehicle, especially the installation of the linear motor upper part to the bogie °1
Regarding the book.

[Prior art]

In recent years, in order to reduce the construction costs of Iff and 'F railways, so-called small...F-surface subways with smaller tunnel cross-sectional areas have been excavated. In order to realize this small-section Ikeshita Railway, it is necessary to develop a so-called low-floor vehicle that has a low height from the rule surface to the floor of the vehicle body. Low floor heavy duty stand +I! : For closing, it is advantageous to use a °C linear motor with Il+<dynamic motor. This is because the height of a linear motor can be made smaller than that of a rotary motor, and therefore the wheel diameter can be made smaller.

First, since such small cross-section steel is mainly used for passenger transport within cities, it is necessary to be able to pass through curves with a small radius of curvature. Linear motors are generally installed on a bogie with a ground coil and rails that are placed on a VJt on a rail 1151.
The onboard shear may be a coil (on-vehicle primary power type) or an axle plate (ground-based single power type). However, in any case, the shape of the upper wheel is a flat plate, and it will be set on the lower side of (f, N (') L1tll'llll) so that it faces the lower wheel on the ground. trolley car 41
If an attempt is made to suspend a flat plate-like upper body under the +, the movement of the center axis may be restricted and smooth passage of the curve iDj may be hindered. When the movement of the axle is restricted, a relative slip occurs between the wheel 7 flange and the rail on the curve ifl and the rail, which increases the friction of the wheel 7 lange and requires frequent heavy wheel milling. However, the disadvantage is that the scale makes a squeaking noise, which may cause discomfort to passengers.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a trolley for a linear motor viewing vehicle that can cover a circle 11t by 1t1 even on a curve with a relatively small radius of curvature.

[Summary of the invention]

In order to achieve this object, the present invention provides a wheel set consisting of a bogie frame, one wheel, and a car lit, an axle box provided at both ends of a front axle, and an axle box that is attached to the bogie via wire powder. The above-mentioned system for a near-motor driven vehicle is equipped with an axle box support device to be attached, an upper vehicle element of a near motor placed below the ridge 11411, and a suspension system (ry) for suspending this upper element on the axle. The suspension device is attached to the center of the axle via a spherical roller bearing, and
IL! The lj curved box support device is characterized in that it has an axle box guide mechanism provided with a play that allows the axle box to move in the front-back direction.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4.

In FIGS. 1 and 2, 1 is a track bed, 2 is a rail, and 3 is a wheel set that extends from wheels 4 and an axle 5. Reference numeral 6 denotes axle boxes provided at both ends of the axle 50, which house axle support bearings. 7 is the bogie frame, 8 is its side beam, 9
is the same.

The axle box 6 is supported by a bogie 7 by an axle box support device 10 located before and after the axle box 6.
It is attached to the side beam 8 of. The axle box support device 10 has a coil spring 11 as a conflicting body.

12 is a pillow made of air splashes, and 13 is the vehicle body. The above configuration is similar to that of a +m-normal two-degree-of-freedom vehicle.

Next, the linear motor relationship will be explained. This embodiment shows an on-vehicle primary system, where 14 is a reaction plate installed on the track bed 1 as a ground member, and 15 is arranged below the axle 5 so as to face this reaction plate 14. This is a coil as one part of the car. The reaction plate 14 is preferably an aluminum plate in contact with a steel plate. A traction force or braking force is generated between the reaction plate 14 and the coil 15.

16 connects the coil 15 to the car IIIelt 5 K i+i'
i-frame wheel Ft: This is a frame wheel and is attached to the center of the axle 5 via a spherical roller Ii+11 bridge 17. FIG. 2 shows approximately half of the truck, and the flat coil 15 is similarly suspended on a power axle (not shown). Therefore, the important use of the coil 15 is the two spherical flow bearings 1, front and rear.
7. The spherical roller bearing 17 is
Relative winding (rotation around the 2-2 axis) between the axle 5 and the coil 15? J rolling (IHI rotation of X - X # as a cover) is restrained, 7:
(displacement in the direction of force) is a constraint.

18 is an anti-rolling device for suppressing rolling of the coil 15, and this device is installed on the side beam 90 of the bogie frame.
The coil 15 is supported at two points at the front and rear. In this embodiment, the anti-low link device 18 is placed between the coil 15 and the horizontal beam 9;
There is no problem even if it is provided between the axle 9 and the axle 9. 19 is coil 15
This is a horizontal support provided between the frame and the side beam 8 of the bogie frame.

Figures 3 and 4 show details of h1s of the axle box support device uzio. A center bin 2o is fixed downward to the lower surface of the side beam 80 of the bogie frame, and an inner cylinder 22 is concentrically attached around the center bin 20 via a cylindrical anti-vibration rubber 21.

The vibration isolating rubber 21GJ is firmly bonded to the center pin 20 and the inner cylinder 22 in a circular manner. An outer cylinder 23 fixed to the axle box 6 is arranged around the inner cylinder 22. These central bins 20
, the vibration-proof rubber 21, the inner tube 22, and the outer tube 23 are the coil springs 1.
The axle box guide (Yosu, %7) is controlled within a certain range while the relative displacement in the vertical direction is not restricted as much as possible.

A clearance ΔX in the longitudinal force direction (X-X direction) is provided between the inner f3i 22 and the outer cylinder 23. The size of this play ΔX is determined by the relative range of the longitudinal force direction 1111 between the axle box 6 and the bogie frame 7 that occurs when the wheelset 3 steers along the curved rail 2 as shown in FIG. The size is set to allow the position Δx1. This relative displacement Δx1 is defined as Δx1-αb/R, where the distance between the center of the bogie and the center shaft is al, the distance from the center of the rail to the axle box 6 is 5, and the minimum radius of curvature of the rule is R.・・・・・・(Can be obtained from 11, α-0,9sn5b-0,75m
In the general case of R""10' Om, Δx
The key is 1-6.75.

In addition, in order to enable the wheel set 3 to steer smoothly along a curve, and to prevent distortion from occurring due to relative displacement in the vertical direction between the bogie frame 7 and the axle box 6. In addition, it is preferable that IIJJJC of the inner cylinder 22 and the outer cylinder 23 be provided with a small clearance Δy also in the left-right direction (Y-Y direction) rC, as shown in FIG.

When VCt44 is configured as described above, when passing a curve, the car
The moment that opposes the steering of the wheelset along the curve due to the slope of the tread 101 of i is the lateral stiffness of the coil spring (j'o per axle box l O (l kg f
Since there is only a relatively small moment due to less than /ym, the wheelset can be easily steered and therefore there is virtually no relative slip between the wheels and the rail, and there is virtually no relative slip between the wheels and the rail. It is possible to drive on curves at H.

If the externality of the support J' in the longitudinal force direction of the axle box is made smaller as shown in the above ff+2 example, the stability of the snake action of the It has been clarified that in order to improve
B.

Be1l, J., Hedrick, “ΔCo
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and CurvinSJ Performan
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tionat Rαit V6hicte Tru
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1981, VOl, 103). Therefore, even with the above-mentioned bogie, by keeping the left-right clearance Δy of the axle box guide 'R' (?424) to a minute value, the bogie frame can be supported sufficiently in the left-right direction with respect to the wheel set. , it is possible to maintain one aspect of the stability of the snake action.

In addition, since the configuration is as shown in Figure 1, it is possible to suppress excessive relative displacement between the bogie frame and the axle box, thereby preventing the coil spring 11 from being damaged or falling off. It also has the effect of preventing you from doing something like this.

For the above-mentioned trolley, lllllI box guidance technique, ](h
Since the bogie frame is fully supported by the shaft 11), the horizontal support 19 is not necessarily necessary, but the horizontal support 19 is provided and the left-right play of the spherical roller bearing 17 is reduced. ,
The relative displacement in the left and right direction between the shaft 11j and the city shaft 118 caused by the snake action (the deflection of the Vijj swinging rubber 21 is small, so
The sum of the play in the left and right force directions of the axle support bearing and the axle box guide mechanism i
(can be approximated by the j1 value), the coil 15 will no longer follow the left and right sides of the wheelset 3 by about 4 degrees, and the quality Di of the coil 15 can be considered to be added to the bogie frame 7 instead of being added to the wheelset 3. As a result, the inertial force of the wheelset in lateral movement is reduced, resulting in an advantage that the stability of the meandering movement is improved.

No. 61 shows an embodiment of σ) in addition to the portion of the support device 10 for the support device 10. In this embodiment, the center bin 20 fixed downward to the base IL frame has an oval cross section that is long in the front and back direction, and the vibration isolating rubber 21 provided only on the left and right sides of the center bin 20 is It is fixed to the inner surface of an outer cylinder 23 fixed to the box.

A longitudinal clearance ΔX is provided between the center bin 20 and the outer cylinder 23 to allow movement of the axle box in the longitudinal direction, and a small clearance Δy in the left-right direction is provided between the center bin 20 and the vibration isolating rubber 210. be.

Figures 7 and 8 show still other examples of the axle box support device 10. In this embodiment, a guide frame 25 is provided between l1r1 of the axle box 6 and the coil spring 11, that is, at the front and rear of the axle box 6, and which is fixed to the slot 8 of the bogie frame 7 in a straight direction, and this is the axle box guide mechanism. 24 to t
1q has been completed. q Slides 26 and 27 are fixed to the opposing surfaces of the guide 7 frame 25, respectively, and nf? A rear force direction gap ΔX is provided. Furthermore, a back plate 28 is fixed to the inside of the axle box 6 [ni] and extends so as to face one surface of the front and rear guide frames 25, and a slide plate 29 is attached to the portion of the guide frame 25 that faces the back plate 28. is fixed. Backing board 28 and sliding board 2
A minute clearance Δy in the left and right direction of force is provided between 9.

The real sister example in Figure 6 or the real sister example in Figures 7 and 8,
It has the same effect as the actual sister examples shown in Figures 1 to 14.

〔Effect of the invention〕

As explained above, according to the present invention, since the train shaft of the linear motor is suspended in the center of the axle via a spherical roller bearing, yawing of the city shaft relative to the train shaft is possible. Since the levers 111 at both ends of the city axis are capable of zero movement in the front and rear force directions, the wheelset can be smoothly steered along curves, resulting in a linear motor-driven heavy-duty bogie with good curve passing performance. be able to.

[Brief explanation of drawings]

Fig. m1 and Fig. 2 GJ A normal li drawing and a plan view showing an embodiment of the linear motor drive kl + vehicle platform of the present invention, ri 13
The figure shows the axle box support f of the same truck seen from the A-A direction in Figure 2.
A partially cutaway side view of i'4 Mis, FIG. 4 is a plan view of the same part seen from the direction BB in FIG. 3, and FIG. - Plan view 1, 6th showing Ij overload state
4 is a plan view corresponding to FIG. 4 showing another embodiment of the axle box support device portion of the bogie of the present invention, and FIG. 7 is a partially cutaway view corresponding to FIG. Side view,
Figure 8 is #jIJ7L: Same h (
It is a plan view of 5 minutes. 3...Wheel set, 4...Wheel,
5...Axle, 6...Axle 1tL7...
...Bogie frame, lO...Axle box support VtR11
......Coil spring (buffer), 15...
Coil (onboard), 16...A2f bodywork U':
tz 1't... Spherical roller bearing, 20...
... Center bottle, 21 ... Anti-vibration rubber, 22 ...
...Inner cylinder, 23...Outer cylinder, 24...
Axle box guide tA structure, 25...Guide frame. -335- Age 7

Claims (1)

[Scope of Claims] 1. A wheel set consisting of a bogie frame, wheels and one shaft, a 1y11 box installed at both ends of the +'J1 marked car 111i+1, and this shaft '4v1 connected through a buffer. (=1) axle box support device i'Y;14iJ; 1 and a near-motor upper car element placed below the axle; and this car J-child, suspended on the 1111 jjj axle. suspension system it
(In the case of 11u, the iU period tragic device r, V
In the center of the above t1t 71NF+, there is a battle between Korosuke Kimukai and
Mounted through the il, ll and nij axle box support) 4
A bogie for a linear motor-driven vehicle characterized by having a 1111 box guide (Peng 41"-7) provided with a clearance that allows movement of the axle box in the front and back direction. 2. Special feature 1' f In the range IV1'!1 of the TtiV calculation, the axle box guide 44'J ti'J GJs fi
iJ marked bogie frame A central bin fixed to the bogie frame, inner n'n attached concentrically around the center bin via anti-vibration rubber, and a surrounding r( Consisting of 1゛ (Sare 4) and 1 outside fixed to the Kisuke box,
1) A bogie for a linear motor-driven vehicle, characterized in that an Otl clearance is provided between the inner cylinder f, 'ii and the outer cylinder. 3 Claims [7JT paragraph 1, 11f En.
1st period Im=Inner case includes a center bin fixed downward to the bogie frame, an outer cylinder placed around [M] of this center bin and fixed to the axle box, and this outer cylinder. The inner surface of the rod is provided with anti-plum rubber which is rotated so as to be located on both sides of the central bottle, and a gap is provided between the central bottle and the outer cylinder. Trolley for near motor driven vehicles. 4. In Claim 1, it is stated that the said 11 box guide
It consists of a first guide frame that is fixed downward in such a way that there is a 1jfJ M between the axle box and the guide frame.
A bogie for a near-motor driven vehicle, which is characterized by a Q clearance.