JPH0531362B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a linear motor propulsion truck.

[Background of the invention]

Conventionally, when mounting an electric motor on a truck, it has been customary to mount the electric motor, which is configured separately from the truck, on the truck. When the main electric motor is of a rotary type, it is attached to the side beam of the bogie frame, and drives the wheel axle through a gear system and a flexible joint that allows the wheels to move up and down. When the main electric motor is a linear motor (for example, JP-A-56-108344), it is attached to the side beam of the bogie frame, and the thrust of the motor is transmitted to the car body via the side beam. Moreover, in the case of the linear motor, there is one that is constructed integrally with the truck. This will be explained with reference to FIGS. 1 and 2. In the figure, a bearing box 2 is fixed to both the front and rear sides of an onboard element 1 constituting a linear motor, and a bearing 4 is provided inside the bearing box 2 via a ring-shaped elastic body 3 such as rubber. is installed. Air spring receivers 7 are provided on both sides of the central portion of the vehicle upper body 1, and a vehicle body 9 is supported on the air spring receivers 7 via air springs 8. Further, propulsion force is transmitted via an arm 10 provided near the center of the vehicle upper 1, a thrust rod 11, and a center pin 12 provided on the vehicle body 9. In such a configuration,
Since the axle support section has high rigidity in the longitudinal direction, the lateral pressure increases when passing through a curve, resulting in a so-called "squeak" sound caused by contact between the wheel flange and the rail. In addition, the wheels 6, the onboard coil 1 and the ground coil (reaction plate) due to rail wear.
There was a drawback that it had an adverse effect on the maintenance of empty dimensions.

In order to solve the above-mentioned problems, the vehicle upper child is supported by the axle via a bearing means which is arranged in the center of the axle and allows rocking, and the vehicle child is supported between the vehicle body child and the axle. There are structures that are equipped with anti-rolling devices as a means of suppressing the child's rolling.
In such a configuration, it is necessary to provide the anti-rolling device. For this reason, the structure of the part to which the anti-rolling device is attached becomes complicated, resulting in disadvantages such as complicated manufacturing and maintenance work.

[Purpose of the invention]

The purpose of the present invention is to provide a structure that allows self-steering of the axle, to reduce malfunctions when traveling on curves, to suppress rolling of the upper part of the vehicle by supporting it with the axle, and to prevent rolling of the complex structure consisting of torsion bars. It is an object of the present invention to provide a linear motor propulsion truck whose structure can be simplified without using any equipment, thereby improving workability during manufacture and maintenance and inspection.

[Summary of the invention]

The present invention includes two axles arranged at the front and rear of a bogie with the axial direction extending in the width direction of the bogie, each having a wheel at both ends, and disposed below these two axles, It is coupled to a bearing means consisting of a spherical bearing installed at the axial center of one of the two axles, and at a position inside the wheels of the other one of the two axles. an onboard element coupled to two bearing means installed at equal intervals from the axial center of the axle, and each installed between the two bearing means of the other axle and the onboard element; There are two shock absorbers that are hard in the vertical direction and soft in the front and back directions, and an axle box installed at each end of the two axles, and a vertical load is supported by allowing relative displacement in the horizontal direction. a bogie frame supported by the two axles via an axial spring, and one end of each of which is installed with its axial direction extending in the front-rear direction and width direction of the bogie between the bogie upper child and the bogie frame. two pairs of rods, the other ends of which are connected to the vehicle upper element and the other ends of the rods to the truck frame so as to be rotatable about horizontal axes, each pair of rods being arranged in the longitudinal direction and the width direction of the truck. each has a connecting means arranged symmetrically with respect to the center of the bogie, and a connecting means installed at the center of the bogie so that its longitudinal direction coincides with the longitudinal direction of the bogie, with one end attached to the bogie frame and the other end 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]

Next, one embodiment of the present invention will be described with reference to FIGS. 3 to 6. FIG. 3 is a plan view showing one embodiment of the linear motor propulsion vehicle according to the present invention;
The figure is a side view of FIG. 3, FIG. 5 is a sectional view taken along line BB in FIG. 3, and FIG. 6 is a front view of FIG. 3. In the figures, the same reference numerals as in the conventional example indicate the same members.
Reference numeral 1' denotes an on-vehicle component of a linear motor having only a propulsion function, unlike the conventional one, and a bearing box 13 is provided at a position corresponding to the center of one axle 5. A spherical bearing 14 is built into the bearing box 13, and the vehicle upper body 1' is supported by the one axle 5 through the spherical bearing 14 and the bearing box 13.
Also, between the wheels 6 of the other axle 5, that is, the intermediate portion 2
A bearing box 15 is provided at a position corresponding to the location. The bearing box 15 incorporates a shock absorber 16 and a bearing 17 that are hard in the vertical direction and soft in the longitudinal direction. It is supported by the other axle.
Therefore, the vehicle upper part 1' has two bearings 1 installed at positions equidistant from the axial center of the other axle 5.
Furthermore, since the shock absorber 16 is also stiff in the vertical direction, the upper part 1' is supported at two points in the width direction of the bogie, so that it cannot swing in the width direction of the bogie. That is, rolling can be suppressed by the other axle 5. An axle box 18 is provided at the end of each axle 5.
The axle box 18 supports a side beam 20 of the bogie frame via an axle spring 19. Note that the bogie frame side beams 20 on both sides are connected by a horizontal beam 21 to constitute a bogie frame. An air spring receiver 7 receives an air spring 8, and supports the vehicle body 9 on the bogie frame via the air spring receiver 7 and the air spring 8. A thrust rod 11 has one end attached to the horizontal beam 21, and the other end is connected to a center pin 12 attached to the bottom of the vehicle body 9 for transmitting thrust from the bogie frame to the vehicle body 9. A shim 22 is provided between the bearing boxes 13, 15 and the upper part of the vehicle 1', and is used to adjust the distance between the upper part of the vehicle 1' and the ground member. Reference numeral 23 indicates an arm provided on the upper surface of the vehicle upper part 1' corresponding to the crossbeam 21, 24 an arm provided on the lower surface of the crossbeam 21, and 25 connecting the arms 23 and 24. This is a rod that transmits the longitudinal force of ' to the bogie frame. A plurality of arms 23, 24 and rods 25 are provided at symmetrical positions with respect to the center of the truck. Reference numeral 26 indicates an arm provided on the upper surface of the vehicle upper part 1' corresponding to the side beam 20, and 27 indicates the side beam 2.
An arm 28 provided on the side surface of the vehicle is a rod that connects the arms 26 and 27 and transmits the lateral force between the vehicle upper element 1' and the bogie frame.
Note that a plurality of arms 26, 27 and rods 28 are provided at symmetrical positions with respect to the center of the truck.
The arms 23, 24, the rod 25, and the arms 26, 27, and the rod 28 are connecting means for connecting the vehicle upper part 1' and the bogie frame. Further, the left-right movement and the left-right force of the car body 9 are controlled by a stopper metal fitting 29 attached to the lower surface of the car body 9 and a stopper rubber 3 provided on the bogie frame corresponding to the stopper metal fitting 29.
Conveyed by 0.

In such a configuration, when traveling on a curved track, the onboard element 1' has a spherical bearing 14, a buffer body 16,
It is supported by the axle 5 via a bearing 17, and since the axle 5 is swingably attached to the bogie frame, the axle 5 is moved toward the vehicle body 9 by the self-steering effect due to the slope of the tread of the wheels 6. It swings back and forth. 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 squealing noise. It can also travel at high speed on curved tracks with a small radius.

According to such a configuration, the vehicle upper body 1 is supported at three points by the axle 5 disposed at the front and rear of the vehicle body body 1′, and an anti-rolling device is provided to suppress rolling of the vehicle body body 1′. There is no need to provide Further, each axle 5 is provided so as to be swingable relative to the bogie frame, and one axle 5 is provided with a spherical bearing 1.
4. The other axle 5 is connected to the vehicle upper body 1' via a buffer body 16 and a bearing 17, and is configured to allow relative rocking of each axle 5 in the longitudinal direction. There is no negative effect on the self-steering action of the

〔Effect of the invention〕

As explained above, according to the present invention, the structure allows the self-steering action of the axle without adversely affecting the self-steering action, thereby making it possible to reduce malfunctions when traveling on curves, and the anti-rolling device consisting of a torsion bar. Since there is no need to provide
The structure of the truck can be simplified, and workability during manufacturing, maintenance and inspection can be improved.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a conventional linear motor propulsion truck, FIG. 2 is a sectional view taken along line A-A in FIG. 4 is a side view of FIG. 3, FIG. 5 is a sectional view taken along line BB in FIG. 3, and FIG. 6 is a front view of FIG. 3. 1'... Vehicle top, 9... Vehicle body, 13, 15...
Bearing box, 14... Spherical bearing, 16... Buffer, 1
7...Bearing, 18...Axle box, 19...Axle spring, 2
0...Side beam, 21...Side beam, 23,24,2
6, 27... Arm, 25, 28... Rod.

Claims (1)

[Claims] 1. Two axles disposed at the front and rear of the bogie with their axes extending in the width direction of the bogie, and each having wheels at both ends; and is connected to a bearing means comprising a spherical bearing installed at the axial center of one of the two axles, and further inside than the wheel of the other one of the two axles. an undercarriage element connected to two bearing means installed at equal intervals from the axial center of the axle, and between the two bearing means of the other axle and the overcarriage element; The axle box is installed at each end of the two axles, and the axle box is installed at each end of the two axles, and the axle box is installed vertically to allow for relative displacement in the horizontal direction. A bogie frame supported by the two axles via an axial spring that supports a load, and installed with its axial direction extending in the longitudinal direction and width direction of the bogie between the bogie frame and the bogie frame. Each rod is made up of two pairs of rods, each of which has one end connected to the car upper element and the other end connected to the truck frame so as to be rotatable around a horizontal axis, and each rod is arranged in the longitudinal direction and the width direction of the truck. A pair of rods each have a connecting means arranged symmetrically with respect to the center of the bogie, and are installed at the center of the bogie with their longitudinal directions aligned in the front-rear direction of the bogie, with one end attached to the bogie frame and the other end attached 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 and.