JPH0134823B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a linear motor propulsion truck that travels by the propulsive force of a linear motor.

Generally, when mounting a main motor on a bogie, it is customary to construct the main motor and a bogie frame separately, and to mount the main motor on the bogie frame. If 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 armature that allows the wheels to move up and down and transmits power. If the main motor is a linear motor,
It is attached to the side beam of the bogie frame, and thrust is transmitted to the vehicle body via the side beam. By the way, in the case of the linear motor, there is one in which the truck and the linear motor are integrated. This example 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 ends of an onboard element 1 of a linear motor, and a bearing 4 is inserted into the bearing box 2 via a ring-shaped elastic body 3 made of rubber or the like.
An axle 5 having wheels 6 at both ends is supported by the bearing 4 relative to the vehicle upper part 1. There are air spring receivers 7 on both sides of the central part of the onboard child 1.
A vehicle body 9 is supported by the vehicle upper body 1 via an air spring 8 provided on the air spring receiver 7. The vehicle body 9 of the propulsive force of the vehicle upper child 1
The transmission of the force to is carried out by an arm 10 provided near the center of the vehicle upper 1, a center pin 12 provided on the bottom surface of the vehicle body 9, and a thrust rod 11 connecting the arm 10 and the center pin 12.

However, in such a configuration, the axle 5
The rigidity of the portion supporting the vehicle upper body 1 with respect to the vehicle upper body 1 is large in the longitudinal direction, and rocking of the axle 5 in the horizontal plane is not allowed. Therefore, there are disadvantages in that the lateral pressure acting on the wheel 6 increases when passing through a curve, causing so-called squeaking noise due to contact between the wheel flange and the rail, and wear of the axle 6 and the rail. Note that wear on the axle 6 and rails affects the gap size between the upper car element 1 and the ground element that constitute the linear motor, so it is necessary to keep the wear to a minimum in bogies using linear motors. There was a problem that it had to be done.

In order to solve this problem, the axle is swingably attached to the bogie frame via a bearing means arranged at the center of the axle and allowing swing, and the bogie frame and the bogie body are formed separately. There is a structure. However, in this structure, due to the relationship with the shape of the upper car body (height and length in the longitudinal direction of the car body), if the car body child is longer than the distance between the front and rear axles, and the wheel diameter is small, the axle and The disadvantage was that the gap between the train and the track surface was small, making it impossible to mount an onboard vehicle.

In view of the above points, the present invention has an effect on the axle when traveling on a curve by integrally configuring the upper part of the linear motor and the bogie frame, and by attaching the axle to the upper part so as to be able to swing. The purpose of this is to reduce the lateral pressure exerted by the vehicle, prevent wear on the wheels and rails, and improve running stability.

The present invention comprises an upper car body and a bogie frame, an axle is swingably attached to the car body via bearing means that allows the axle to swing, and the rolling of the car body is prevented. The vehicle is characterized in that a suppressing means is provided to reduce the lateral pressure acting on the wheels when traveling on a curve.

Next, an embodiment according to the present invention will be described with reference to FIGS. 3 to 7. 3 is a plan view of a linear motor propulsion truck according to the present invention, FIG. 4 is a side view of FIG. 3, FIG. 5 is a front view of FIG. 3, and FIG. 6 is a cross section taken along line B-B in FIG. 3. 7 are cross-sectional views along the line C-C in FIG. 3. In the figure, the same reference numerals as in the conventional example indicate the same members. Reference numeral 2' denotes a bearing box provided at the center of the front and rear of the vehicle upper body 1, in which a spherical bearing 13 and a shock absorber 14 made of rubber or the like are incorporated. The axle 5 is inserted into the spherical bearing 13, and is connected to the vehicle upper part 1 via the spherical bearing 13, the buffer body 14, and the bearing box 2', and supports the vehicle upper part 1 through these. A bearing 4' is provided at an intermediate portion between the spherical bearing 13 of the axle 5 and the wheel 6, and the bearing 4' is built in the axle box 16.
Further, the axle box 16 and the vehicle upper body 1 are connected via a shock absorber 17 such as a coil spring, and the axle box 16 and the shock absorber 17 are located at symmetrical positions with respect to the bearing box 2' of the axle 5. It is set in. By providing the axle box 16 and the shock absorber 17, the rocking of the vehicle upper 1 can be supported by the axle 5, and rolling can be suppressed. Reference numeral 18 denotes a disk brake holder provided on the axle box 16, and a shoe 2 disposed corresponding to the wheel disks 15 provided on both end surfaces of the axle 6.
1, a brake lever 19 that supports the shoe 21 via the shoe holder 22, and the brake lever 19.
A shoe 21 is provided at one end of the wheel disk 15.
A brake mechanism consisting of a brake cylinder 20 is installed which presses against the brake cylinder 20. 23 is a pillow supported on the air spring receiver 7 via the air spring 8;
Reference numeral 24 denotes a side support provided between the pillow beam 23 and the vehicle body 9, which supports the vertical load of the vehicle body 9 with respect to the pillow beam 23. 25 is a car child 1 and a pillow 2
3 is a longitudinal force transmission rod that transmits longitudinal force; 26 is a receiver provided on the bottom of the vehicle body 1;
Reference numeral 27 denotes a buffer body attached to a receiver 28 provided on the pillow beam 23 corresponding to the receiver 26, and transmits lateral force between the receivers 26 and 28 via the buffer member 27. do. Note that the money receiver 26 and the buffer body 2
A predetermined gap is provided between the vehicle upper part 1 and the headrest 23, and the lateral force is transmitted only when a lateral force accompanied by a large displacement acts between the upper part 1 and the pillow beam 23. A damper 29 is a damper provided between the vehicle upper 1 and the headrest 23, and serves as a buffering means for relieving the lateral force acting therebetween. Reference numeral 30 denotes an adjustment plate provided between the bearing box 2' and the lower car body 1 in order to adjust the gap size between the lower car body 1 and the ground element, and 32 denotes an adjustment plate used for holding and adjusting the adjustment plate 30. This is an adjustment screw that can be adjusted. Reference numeral 31 denotes an adjustment plate provided between the axle box 16 and the support portion of the buffer body 17, which, like the adjustment plate 30, adjusts the gap size between the onboard lower element 1 and the ground element. Reference numeral 33 is an adjustment screw provided for the dimension adjustment.

In such a configuration, when traveling on a curved track, the upper train 1 is supported by the axle 5 via the spherical bearing 13 and the buffer 17, so it does not affect the rocking of the axle 5. , self-steering can be performed by the slope of the tread of the wheels 6.
Furthermore, since the brake mechanism is also provided in the axle box 16 as described above, the self-steering action of the axle 5 is not adversely affected. Due to the self-steering action of the axle 5 when traveling on a curve, the lateral pressure applied to the wheels 6 can be made uniform between the front and rear of the bogie. This makes it possible to reduce the maximum lateral force that conventionally acts on the wheels 6, and to reduce the squeaks and wear of various parts that occur between the wheels 6 and the rails. Moreover, the vertical and horizontal rigidity of the buffer body 17 provided between the upper car part 1 and the axle box 16 can suppress the meandering motion of the truck and the rolling of the upper car part 1. Furthermore, when adjusting the gap size between the lower car body 1 and the ground element, adjustment plates 30 and 31 provided between the bearing box 2' and the lower car body 1, and between the axle box 16 and the buffer body 17 are adjusted. It is only necessary to adjust the number of insertions using adjustment screws 32, 33, etc., and the operation is very simple.

According to such a configuration, self-steering of the axle 5 is possible, and the maximum lateral pressure acting on the axle 5 can be reduced, so that squeak noise and wear of the wheels 6 and the rails can be reduced. In addition, the upper car 1 is directly supported by the axle 5, and the pillow 23 is supported by the upper car 1 via the air spring 8, so that the upper car 1 has the function of a bogie frame. By doing so, there is no problem such as not being able to mount the vehicle upper part 1 even if the length of the vehicle upper part 1 is long and the wheel diameter is small.

As explained above, according to the present invention, it is possible to reduce the maximum lateral force acting on the wheels, reduce squeak noise and wear of the wheels, rails, etc., and even when the wheel diameter is small and the vehicle top is long, the vehicle The upper child can be supported and mounted without any problem.

[Brief explanation of drawings]

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. Fig. 4 is a side view of Fig. 3, Fig. 5 is a front view of Fig. 3, Fig. 6 is a sectional view taken along line B-B of Fig. 3, and Fig. 7 is a sectional view taken along line C-C of Fig. 3. It is. 1... Vehicle upper, 2'... Bearing box, 5... Axle,
6...Wheel, 9...Vehicle body, 13...Spherical bearing, 1
4, 17...Buffer, 16...Axle box, 23...Billboard, 24...Side support, 25...Fore and rear force transmission rod, 26, 28...Buffer, 29...Damper, 3
0, 31... Adjustment plate, 32, 33... Adjustment screw.

Claims (1)

[Claims] 1. In a linear motor propulsion bogie consisting of an onboard element that forms a linear motor with a ground element provided on the track and generates propulsive force, and an axle that supports the onboard element and the car body, the onboard element Let be the trolley frame,
A force transmitting means provided between the vehicle upper child and the vehicle body for transmitting longitudinal and lateral forces between the vehicle child and the vehicle body, and a spherical bearing provided at the front and rear of the vehicle child and engaged at the center of the axle. an axle box provided between the bearing means of at least one axle and the wheel and having a bearing that is engaged with the axle; and an axle box provided between the axle box and the upper body of the axle of the axle. A linear motor propulsion trolley comprising a rolling suppressing means constituted by a buffer body that allows displacement in the longitudinal direction.