JPS5824304B2 - Tetsudoshi Yariyoushya Tie - Bogie - Lenketsouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coupling device for connecting a railway vehicle body and its bogie.

In particular, by way of example, two
Applies to bogie wagons.

In suitable implementation conditions, the invention can likewise be applied to double bogie freight cars which sit at each end on the joint of two combined basic bogies.

Conventional devices for supporting the body of a freight car on a transport bogie generally consist of a central pivoting support surface or a central hemispherical thrust bearing completed by a laterally sliding support.

These devices create large frictional effects that make it difficult to cut curves with small radii.

This creates abnormal lateral forces on the track, wears the tires and flanges of the wheels, and often necessitates re-alignment of the wheels.

Furthermore, when a vehicle passes over a section of track that is out of alignment, for example at the end of an inclined or therefore locally submerged section of this track, the high wear of its pivot axis may cause some of the wheels to lift up and thus There is a risk of going off track.

It is often also the same for compound bogie vehicles in which the body is seated on a frame that distributes the load between two basic bogies, said frame then having a planar pivoting central support or thrust bearing and a lateral sliding It is supported on each elementary bogie by a support section.

The invention eliminates these deficiencies by means of a connection between the transport bogie and the vehicle body that ensures turning with minimal friction and passing over irregularities without significant lifting of the wheels.

The present invention is applied to a vehicle that can be made to sit on a bogie provided with a crossbeam having a central pivot axis.

The present invention provides a cross beam having a pivot axis located in the middle, a balance bar pivotally connected to the pivot axis and extending laterally, and an elastic block that can also be deformed laterally for transmitting the weight of the vehicle body to the cross beam. In a device for connecting a car body and a bogie in a railway vehicle, the car body is supported at both ends of a balance bar via one device, and when a load is applied, the balance bar rotates as described above. The ends of the counterbalance bar are supported on the crossbeam via the elastic blocks so as to provide vertical flexibility that transmits significantly reduced forces to the axis, and the counterbalance bar is supported on the crossbeam on the pivot axis. The coupling bar is held at zero by a nut and a ring so that the elastic block is under a slight pretension in an unloaded state, and the vehicle body is provided with a slider for transmitting tensile force and braking force. , the slider is a device for connecting a heavy body and a bogie in a railway vehicle, characterized in that the slider is engaged in mutually opposing grooves of a support member.

According to the special shape of the invention, the support of the vehicle body on each end of the balance bar is carried out by an intermediate support on the flat side of the vehicle body on this support, and by a cylindrical surface on this balance bar. The support is supported.

According to another special configuration of the embodiment, the support of the vehicle body on each end of the balance bar is provided via a support with a flat support surface of the vehicle body on this support and also with the axis of the vehicle body on said support. This is carried out by a swinging angle lever pivoted around an axis parallel to the core, and the first arm of the angle lever is brought into contact with the end of the balance bar as a cylindrical part, and the second arm is brought into contact with the end of the balance bar. The arms are each connected to a similar arm on the other side of the balance bar by means of tie bars pivoted at both ends.

The invention applies to a railway vehicle seated on at least one connection of both elementary bogies, in which the connections of the bogies are arranged on both sides close to the longitudinal axes of both elementary bogies. This is done by means of two longitudinally pivoting levers, such that the vehicle body is seated midway between each of said inner longitudinally pivoting levers.

The invention will now be described in detail with reference to specific embodiments shown in the accompanying drawings and given by way of example.

Referring first to FIGS. 1, 2 and 3, a transport bogie of the usual type is briefly illustrated by the transverse beam 1 of the pivot section, which is seated on a transverse apposition 3 via an elastic support 2. However, the spars are supported on the axle box in a known manner.

In order to make the attached drawings more clear, the cross beams 1, the elastic casings or supports 2 and the beams 3 are not shown in section, but in simple outlines.

The pivot shaft 5 is fixed to the cross beam 1.

The balance bar 6 is pivotally mounted on the first contact surface 7 of the pivot shaft 5,
A synthetic resin bushing 8 that works without lubrication is inserted.

The annular surface facing the counterbalance bar and the base of the pivot axis is
Similarly, it is lined with sliding annular plates 9 and 10 made of synthetic resin.

This balance bar 6 is restrained to the pivot by a support or ring 121, the support itself being pivoted at a second abutment surface of the pivot and maintained by a nut 13.

A support member or ring 12 is utilized to provide anchoring points for the swing of the linkage, which anchoring points may be of any conventional type and are not shown.

This support member or ring 12 is arranged obliquely by shear pins 14 forming safety members.

The cross beam 16 of the vehicle body is seated on the upper flat portions of both support members 17 which can be in the shape of a yoke.

The yoke support member 17 supports in its lower part a shaft 19 about which the angle lever 20 is pivotally mounted.

The first arm of this angle lever forms a fork-like protrusion or arm 21 which is supported on the end of the balance bar 6 with a wear member 22 interposed therebetween; it should be noted that the supporting surface is slightly cylindrical. This is to facilitate the transfer of the protrusion, that is, the arm 21 on the member 22.

The second arm of the angle lever 20 is used as a cylindrical transfer support for the cross beam 25, and the two facing cross beams 25 are connected by two tie bars 26.

The swinging angle lever 20 connected by the tie bars 26 is thus formed into a deformable parallelogram by shifting the two cylindrical surfaces.

Finally, the ends of the balance bar 6 are seated on the pivoting crossbeam 1 by means of an elastic support block 30 constructed as a rubber-steel sandwich.

If the bogie is not loaded from the vehicle body, the blocks 30 are kept slightly compressed by the pivot shaft support member or ring 12 which does not allow the balance bar 6 to float freely.

Loading this bogie, on the other hand, determines the flexibility of the elastic blocks 30, as shown, so that their compressive failure under the load of the car body occurs between the balance bar 6 and the ring 12. However, the small gap between the sliding annular plates 9 and 10 is not eliminated.

In this way, under normal loads as shown in the drawings, the balance bar is freely pivoted on the pivot axis 5 and does not transmit vertical loads, since the load of the vehicle body is transferred to the yoke support member 1.
7. This is because the angle lever 20, the end of the balance bar 6, and the elastic block 30 directly transmit the signal to the transverse beam 1 of the bogie.

Of course, in the event of an overload, the gap between the sliding annular plates 9 and 10 can be eliminated, but the load transmitted by the counterbalance bar 6 to the pivot shaft 5 is significantly reduced.

It is thus found that when passing through a curve, the relative rotation of the bogie with respect to the body of the vehicle takes place completely friction-free, and the simple torque is provided by the lateral flexibility of the elastic block 30 at the exit of the curve. This is to counteract the bogey's returning action.

When the vehicle passes over an uneven track, lateral sway must be created between the vehicle body and the bogie, taking into account the unloading of the wheels (vehicle) or the twisting of the body.

However, these restrictions have their limits.

These limitations are then provided by the features described below.

When the vehicle passes over an irregular track section, for example an inclined section of the track or a locally sunken section, the parallelogram deformation of the ankle lever 20 transmits significant torsional forces to the vehicle bodywork. The deviation of the above orbit without causing
It can be absorbed by Bogey.

In this case, the restriction of the relative lateral vibrations between the car body and the bogie, which is normally the task of the lateral bearings, is reduced by the yoke support member 17 when the gap 32 is eliminated as a result of the large lateral vibrations. Each angle lever 20 that comes into contact with the upper part
is provided by the upper arm 24 of.

This body-bogie connection, which ensures the transmission of traction or braking forces, is created by a simple slider 35 which is fixed to the chassis of the vehicle body and which engages in a groove 36 in the yoke support member 17.

The car body-bogie connection device described so far not only ensures the turning, deflection, and drive functions of the car body-bogie, but also
It has also been found that the bogie itself contains all the turning and guiding mechanisms; the wagon chassis merely carries the drive slider of the bogie.

This facilitates bogie interchangeability and therefore increases value, since the same bogie can be used for various types of chassis particularly suited to a particular function.

The slider 35, which reliably transmits traction and braking force during use, has a concealable pawl 3 that is used to secure the bogie to the car body in the event of an accidental power outage following a derailment, for example.
It carries 8.

Reference is now made to FIG. 4, which is designed to simplify the previously described apparatus.

In this case, the main components of the body-bogie connection, in particular the balance bar 6, which is freely pivotable on the pivot axis 5 of the bogie, the support;
It can be seen that, via the intervention of the end of the balance bar 6 and the elastic block 30, a device is provided for transmitting the weight of the vehicle body to the pivot crossbeam 1 without passing through the pivot axis 5.

However, in this case, the support of the vehicle body on the balance bar 6 is
This is carried out directly by two intermediate supports, said intermediate supports each having an upper plane on which the cross beam of the wagon chassis seats, and an arm on the wear pace 22 which is directly associated with the end of the balance bar 6. 21, respectively.

The arm 21 has a cylindrical contact surface that facilitates rolling on the base 22.

In this case, the functions of turning, traction and braking force transmission are carried out under the same conditions as in the device of FIGS. 1.2 and 3; only the relative deflection of the bogie with respect to the vehicle body is sufficiently limited.

A body-bogie connection of this type according to FIG. 4 can be used in combination with a connection allowing even greater deflections as in FIG. 1 when the track deviation does not exceed about 3 wn.

For track deviations of 3 to 6 m+++, bogies and coupling devices of the types shown in Figures 1 to 3 are preferably used.

In the case of a bogie coupling arrangement as shown in FIG. 5, it can be seen that two basic bogies 50 and 51 are coupled by means of two longitudinal balancers or pivot levers 53.

In this case, the railway vehicle body, whose support crossbeams 54 are shown schematically in dotted lines, is connected to a pivot lever 53 in each case by means of a pivoting device 55, which allows a relative angular deviation between the body and the balancer or pivot lever when passing through a curve. sit in the center of the

In FIG. 5, the pivot shaft 5 and the counterbalance bar 6 with which the two basic bogies 50 and 51 are provided are shown only briefly.

Reference is now made to FIG. 6, which shows the ends of the pivoting levers 53 each seated directly by means of projections 57 on the wear shoes 22 which are directly associated with the ends of the balance bar 6.

This protrusion 57 has a cylindrical contact surface that facilitates rolling on the shoe 22.

In this case, a device completely identical to that shown in FIG. They play the same role.

Of course, the invention is not strictly limited to the embodiments described above by way of example; the invention also extends to embodiments which differ only in details, variations in implementation or the use of suitable measures. The same shall be included.

Therefore, in the type of coupling device shown in Figs.
6 can be easily pivoted with the arms on these angle levers.

[Brief explanation of the drawing]

FIG. 1 is a partial cross-sectional view of the chassis of a railway vehicle and its bogie taken along line I--I in FIG. 2 and through the pivot axis of the bogie. FIG. 2 is a plan view taken in partial section along the line ■-■ in FIG. 1. FIG. 3 is a sectional view taken along the line ■-■ in FIG. 2. FIG. 4 is a partial cross-sectional view similar to FIG. 1 showing another embodiment of the invention. Fig. 5 is a simple plan view of the connection between the two basic bogies by two longitudinal swing levers arranged on both sides in close proximity to the axis of the car body and bogie assembly. 4 shows a partial sectional view similar to FIG. 4 for use in the case of a coupling device in which each basic bogie supports the end of a longitudinal pivot lever: 1...cross beam; 5...swivel; Axis, 6...
... Balance bar, 16... Car body, 20, 40.
53...Means for adding vehicle weight, 30...
...Elastic block.

Claims (1)

[Scope of Claims] 1. A cross beam having a pivot located in the middle, a balance bar pivotally connected to the pivot and extending laterally, and capable of being deformed laterally to transmit the weight of the vehicle body to the cross beam. In a device for connecting a car body and a bogie in a railway vehicle equipped with an elastic block, one car body is connected through one device,
supported on opposite ends of the balance bar, the ends of the balance bar providing vertical flexibility such that when loaded, the balance bar transmits significantly less force to the pivot axis; supported on the cross beam via the elastic block;
The counterbalance bar on the pivot shaft is held by a nut and a ring in such a way that the elastic block is under a slight pretension in the unloaded state, and the vehicle body transmits traction and braking forces. 1. A device for connecting a car body and a hoist in a railway vehicle, characterized in that the slider is engaged in mutually opposing grooves of a support member. 2. In the device for connecting a bogie and a car body in a railway vehicle according to claim 1, the car body rests on a support, and the support has a cylindrical surface on each side. A device for connecting a car body and a bogie in a railway vehicle, characterized in that the device is supported on one end of the balance bar via a bogie. 3. In the device for connecting a car body and a bogie in a railway vehicle as set forth in claim 1, the car body rests on the support member, and the support member has an axial center of the car body. An angle lever 20 is pivotally mounted about parallel axes, one arm of the angle lever being supported at each end of the balancing bar via a cylindrical surface, The other arm of the lever is connected by a tie bar to the corresponding arm of the angle lever on the other side of the balance bar. Device. 4. In the device for connecting a car body and a bogie in a railway vehicle according to claim 1, the car body is placed on at least one connecting part of two individual bogies, and The bogies are connected via two longitudinally oriented swivel levers located near and on either side of the axis of rotation of the individual hokies, the body being centered at the center of each of the swivel levers. A railroad characterized in that the swing lever is mounted on both ends of the balancing bar of the individual bogie via a protrusion having a cylindrical contact surface for connecting the car body and the bogie. A device for connecting the body and bogie of a vehicle.