JPH0531361B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a linear motor propulsion bogie, and particularly to a mounting and supporting system for a linear motor that is effective for small cross-section subways.

[Background of the invention]

Conventionally, when mounting a motor on a truck, it is customary to mount a motor that is configured separately from the truck. When the main electric motor is a rotary motor, it is attached to the horizontal beam of the bogie frame, and the wheel axle is driven from a flexible joint through a gear system to allow the wheels to move up and down. Further, when the main electric motor is a linear motor, it is attached to the side beam of the bogie frame, and the thrust of the motor is transmitted to the vehicle body via the side beam. Furthermore, in the case of a linear motor, there are examples in which the trolley and the motor are inseparable (for example, JP-A-56
108344), which is shown in Figures 5 and 6.

In the figure, bearing boxes 2 are fixed to the front, rear, left, and right sides of a vehicle upper part 1, and bearings 4, axles 5, and wheels 6 are attached via ring-shaped elastic bodies 3 made of rubber or the like. Further, air spring supports 7 are fixed to both sides of the central portion of the vehicle upper body 1 to support the vehicle body 9 via air springs 8. However, the structure is such that an arm 10 is fixed near the center of the vehicle upper 1, and thrust is transmitted to the vehicle body via a thrust rod 11 and a center pin 12 installed on the vehicle body.

In the above example, since the rigidity of the axle support part in the longitudinal direction is large, there is a problem of increased lateral pressure when passing through a curve,
There is a drawback that so-called "squeak" noise occurs due to the contact between the wheel flange and the rail.
There was a drawback in that it was difficult to maintain the gap size between the onboard element and the ground secondary conductor (reaction plate) at a predetermined value as the rails wore out.

In order to solve this problem, an axle is provided so as to be swingable relative to the bogie, a bearing means is provided in the center of the axle that allows the axle to swing, and the upper part of the vehicle is supported by the axle via the bearing means. There is an example of a structure in which an anti-rolling device is provided between an axle and a vehicle upper child as a means to suppress rolling of the vehicle child, but in this case, the anti-rolling device must be installed on the axle via a bearing. Therefore, there was a drawback that the installation mechanism on the axle was complicated.

[Purpose of the invention]

It is an object of the present invention to simplify the structure of the roll suppressing means of the above-mentioned onboard child, and furthermore, to allow the self-steering operation of the axle, thereby reducing wear and creaking of the wheels and rails. An object of the present invention is to provide a linear motor propulsion truck that can reduce noise.

[Summary of the invention]

The present invention comprises a pair of axles which are disposed at the front and rear of a bogie so that their axes extend in the width direction of the bogie, each having wheels at both ends thereof, and a reaction plate installed on a track. an upper vehicle element disposed below the pair of axles and supported by the pair of axles via bearing means comprising a spherical bearing installed at the axial center position of each axle; and a bogie frame supported by the pair of axles via an axle box installed at each axle end and an axle spring that supports a vertical load while allowing relative displacement in the horizontal direction; and the bogie frame, with their axial directions extending in the longitudinal and width directions of the bogie, and are rotatable about horizontal axes with one end attached to the upper car body and the other end connected to the bogie frame. each pair of rods arranged in the longitudinal direction and the width direction of the bogie constitutes a connecting means arranged symmetrically with respect to the center of the bogie, and the bogie frame. A torsion bar is rotatably installed on one side of the cross beam at equal intervals from the center in the width direction of the bogie and at a position close to the side beam on the top surface of the upper car body, and a torsion bar arm fixed to the torsion bar is installed. An anti-rolling means in which the connected link is rotatably connected to the other, and the anti-rolling means is installed at the center of the bogie so that its longitudinal direction coincides with the front and rear direction of the bogie, and one end is attached to the bogie frame and the other end is attached to the lower part of the vehicle body. a thrust rod rotatably connected around a horizontal axis in the width direction of the bogie; and air springs installed on both sides of the bogie in the front-rear center on the bogie frame to support the vehicle body relative to the bogie; It is characterized by being composed of the following.

[Embodiments of the invention]

An embodiment according to the present invention will be explained with reference to FIGS. 1 to 4.

In the figure, reference numeral 1 denotes an onboard element of a linear motor, and a bearing box 2 is provided at a position corresponding to the center of an axle 5. The bearing box 2 has a built-in spherical bearing 13, and the vehicle upper body 1 is supported by the axle 5 via the spherical bearing 13 and the bearing box 2. Reference numeral 6 denotes a wheel attached to the axle 5, and an axle box 23 is provided on the outside thereof, that is, at the end of the axle 5. The axle box 23 is connected to the side beam 2 of the bogie frame via an axle spring 24.
I support 2. Note that the side beams 22 on both sides are connected by a horizontal beam 27 to form a bogie frame.

Reference numeral 7 denotes an air spring holder that receives an air spring 8, and supports the vehicle body 9 with respect to the bogie frame via the air spring holder 7 and the air spring 8. A thrust rod 11 has one end attached to the horizontal beam 27, and the other end is connected to a center pin 12 attached to the bottom surface of the vehicle body 9.
This is for transmitting thrust from the bogie frame to the vehicle body 9. A shim 14 is provided between the bearing box 2 and the upper part of the vehicle 1, and is used to adjust the gap between the upper part of the vehicle 1 and the ground member (not shown). 15 is a link receiver installed on the horizontal beam 27, and the link receiver 15
The link 17 is fastened with a pin or the like. Reference numeral 21 is a torsion bar bearing attached to the upper surface of the vehicle upper part 1 and supports the torsion bar 18. The torsion bar 18 has a torsion bar arm 19 and a pin 16.
It is fastened to the link 17 via. 20
is a shim for adjusting the installation height of the torsion bar bearing 21.

Reference numeral 25 indicates an arm provided on the upper surface of the vehicle upper body 1 corresponding to the horizontal beam 27, 28 indicates an arm provided on the lower surface of the horizontal beam 27, and 26 indicates the arm 25 and 2.
8 is connected to transmit the longitudinal force of the vehicle upper part 1 to the bogie frame.

Note that the arms 25, 28 and the rod 26
are provided at symmetrical positions with respect to the center of the truck.
Reference numeral 29 is an arm provided on the upper surface of the upper car body 1 corresponding to the side beam 22, 31 is an arm provided on the side surface of the side beam 22, and 30 is a link between the arms 29 and 31 to connect the upper car body 1 and the bogie. It is a rod that transmits the left and right forces between it and the frame.

In addition, the arms 29, 31 and the rod 30
are also provided at symmetrical positions with respect to the center of the truck.
The arms 25, 28 and the rod 26, the arms 29, 31, and the rod 30 are connecting means for connecting the vehicle upper part 1 and the bogie frame. In addition, the car body 9
The left-right movement and the left-right force are transmitted by a stopper metal fitting 32 attached to the lower surface of the vehicle body 9 and a stopper rubber 33 provided on the bogie frame in correspondence with the stopper metal fitting 32.

In such a configuration, when traveling on a curved track, the upper car body 1 is supported by an axle 5 via a spherical bearing 13, and the axle 5 is swingably attached to the bogie frame. Therefore, the axle 5 swings in the longitudinal direction of the vehicle body 9 due to the self-steering effect due to the slope of the tread surface of the wheels 6. Therefore,
The lateral pressure applied to the wheels 6 is equalized between the front and rear wheels 6, and the lateral pressure applied to the front wheels 6 can be reduced. This can reduce wear on the wheels 6 and rails, as well as reduce squeak noise. It can also travel at high speed on curved tracks with a small radius.

By the way, the rolling of the vehicle upper part 1 is supported by anti-rolling means constituted by a torsion bar bearing 21, a torsion bar 18, a torsion bar arm 19, a link 17, and a link support 15.

According to such a configuration, the anti-rolling means is connected to the upper car body 1 and the horizontal beam 27 constituting the bogie frame.
Since the structure of the truck is installed between the truck and the truck, the structure of the truck can be simplified because there is no need for a bearing to be interposed in the mechanism for suppressing rolling as in the past.
Furthermore, according to the above configuration, whereas the conventional rolling suppression mechanism requires two bearings, the anti-rolling means itself does not use bearings, so even if the spherical bearing 13 is installed on each axle 5, the bearing itself The number of installations can be reduced.

Furthermore, in the above configuration, each axle 5 supports the car upper 1 via the spherical bearing 13 and supports the bogie frame via the shaft spring 24 that allows relative displacement in the horizontal direction. , is configured to allow rocking of each axle 5 in a horizontal plane, that is, a self-steering operation, and can reduce wear on the wheels 6 and rails, as well as reduce squeaks caused by contact between the two. I can do it.

〔Effect of the invention〕

As explained above, according to the present invention, by providing the anti-rolling means, it is possible to accurately maintain the distance between the linear motor upper element and the ground element, and the anti-rolling means is also provided. By installing it between the car upper and the bogie frame, the structure of the rolling suppressing means can be simplified. Furthermore, each axle is configured to allow rocking in a horizontal plane using spherical bearings and shaft springs. Since the structure supports the child and the bogie frame, each axle can self-steering without any trouble, thereby reducing wear and squeaks between the wheels and rails.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of a linear motor propulsion vehicle according to the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is a sectional view taken along line B-B in FIG. 1, and FIG. 1 is a view from C in FIG. 1, FIG. 5 is a plan view of a conventional linear motor propulsion truck, and FIG. 6 is a sectional view taken along line A-A in FIG. 1... Vehicle upper, 2... Bearing box, 5... Axle, 9
... Vehicle body, 13 ... Spherical bearing, 17 ... Link,
18... Torsion bar, 19... Torsion bar arm, 21... Torsion bar bearing, 22... Side beam, 25, 28, 29, 31... Arm, 2
6, 30... Rod, 27... Flat.

Claims (1)

[Scope of Claims] 1. A pair of axles arranged at the front and rear of a bogie with their axes extending in the width direction of the bogie, each having wheels at both ends, and a reaction plate installed on a track. an upper vehicle element disposed opposite to each other below the pair of axles and supported by the pair of axles via bearing means comprising a spherical bearing installed at the axial center position of each axle; a bogie frame supported by the pair of axles via an axle box installed at each end of the pair of axles and an axle spring that supports vertical loads while allowing relative displacement in the horizontal direction; It is installed between the upper car body and the bogie frame with its axial direction extending in the front-rear direction and width direction of the bogie, with one end of each extending to the upper car body and the other end attached to the bogie frame around a horizontal axis. a connecting means consisting of two pairs of rods rotatably connected, each pair of rods arranged in the longitudinal direction and the width direction of the bogie, each of which is arranged symmetrically with respect to the center of the bogie; A torsion bar is rotatably installed on one of a horizontal beam constituting the frame at a position equidistant from the center in the width direction of the bogie and a position close to the horizontal beam on the upper surface of the car upper, and is fixed to the torsion bar. An anti-rolling means is provided in which a link connected to a torsion bar arm is rotatably connected to the other, and the anti-rolling means is installed at the center of the bogie so that its longitudinal direction coincides with the longitudinal direction of the bogie, and one end is connected to the bogie frame and the other end is connected to the vehicle body. Thrust rods are connected at the bottom so as to be rotatable around horizontal axes in the width direction of the bogie, and air rods are installed on both sides of the bogie in the front-rear center on the bogie frame to support the vehicle body relative to the bogie. A linear motor propulsion trolley characterized by comprising a spring.