RU2775290C1 - Freight cars articulation device - Google Patents

Abstract

FIELD: railway transport.

SUBSTANCE: invention relates to the field of railway transport, in particular, to devices for articulating freight cars. The device contains a center and leash parts. The connecting end of the center part is made with a cavity. Inside the cavity, the connecting end of the center part is located, in which a cylindrical hole is made. Inserts-clips and a hinge with a spherical surface are installed in the hole. An annular saddle and an annular support are installed in the lower part of the connecting end of the center part. A spherical hinge rests on the saddle, and the connecting end of the driving part rests on the support. The rod is placed in a cylindrical hole of the hinge with a spherical surface and in the holes of the lower platform and the upper shelf of the connecting end of the center part.

EFFECT: strength of the articulation device is increased.

3 cl, 6 dwg

Description

The invention relates to the field of railway vehicles and can be used for the articulation of freight cars.

A hinge-type device for articulating cars is known, which is taken as the closest analogue, including a hinged part coupled by means of a rod with a driving element and a center plate with a cavity in the body, in which the upper and lower liners with internal spherical surfaces are installed, fixed from above by means of a clamping flange on the body and holding the hinge in the form of a ball, made with the specified rod and a hole on the opposite side of the rod to accommodate the kingpin of the car bogie, while the rod is oriented upwards and fixed in the driving element of the hinged part, and the hinged and pivot parts contain box-section shanks designed for fastening to the center beams of wagons (RU 2738496 C1, publ. 12/14/2020).

The technical problem of the known device is the asymmetry of loading the structure with longitudinal forces acting during the movement of a railway vehicle and during shunting operations. In particular, in the case of application of tensile forces to the center part of the device, the force from the ball with the rod is transferred to the driving element of the hinged part of the device, which is located with eccentricity relative to the shank of the hinged part, fixed in the car center beam. As a result, the hinged part bends at the junction of the driving element and the shank, causing excessive stresses and, as a result, the need to increase strength, for example, by increasing the consumption of materials.

The technical result of the proposed technical solution is to increase the strength of the device for articulating freight cars.

The specified technical result is achieved by the fact that the freight car articulation device, which, like the closest analogue, contains a center part and a driver part, made with shanks for attachment to the car center beams and with connecting ends hinged by means of a rod, and inserts-clips with internal spherical surfaces, holding the hinge with a spherical surface, according to the invention, has the following differences: the connecting end of the center part is made with a cavity, inside which the connecting end of the driving part is located, made with a cylindrical hole in which inserts-clips are installed, a hinge with a spherical surface made with a cylindrical hole, in the lower platform of the connecting end of the center part, an annular saddle contacting with spherical surfaces and an annular support are successively installed, on which the connecting end of the driving part rests, while the rod is placed in a cylindrical hole of the hinge with a spherical surface and in the holes made in the lower platform and the upper shelf of the connecting end of the center part.

In particular cases, the inserts-clips are made with collars for fixation in the end groove, made in the upper part of the cylindrical hole of the connecting end of the driving part.

In particular cases of implementation, the rod is made with an annular groove for fixing on the upper shelf of the connecting end of the center part by means of a pin.

To clarify the essence of the invention, drawings are presented, which show:

in fig. 1 - composition of the device for articulating freight cars, isometric view;

in fig. 2 - device articulation of freight cars in the collection, isometric projection;

in fig. 3 - driving part of the device, main view with a local longitudinal section;

in fig. 4 - insert-clip, main view;

in fig. 5 - hinge with a spherical surface, main view, combined with a longitudinal section;

in fig. 6 - ring support, main view, combined with a longitudinal section.

The freight car articulation device comprises a center part 1 and a driving part 2, each with a box-shaped shank (positions not shown) intended for attachment to the wagon center beam, and with a connecting end 1.1, 2.1, respectively.

The connecting end 1.1 of the Friday part 1 is made with a cavity formed by the lower platform 1.2, the upper shelf 1.3 and the side walls (position not shown). In the lower part, the connecting end 1.1 is equipped with a center plate 1.4.

The connecting end 2.1 of the driving part 2 is made with a lower support surface 2.2 and a cavity, which is a cylindrical hole 2.3 oriented vertically in the composition of the device. The connecting end 2.1 of the driving part 2 is located in the cavity of the connecting end 1.1 of the center part 1. Between themselves, the connecting ends 1.1 and 2.1 are pivotally linked by means of a rod 3 oriented vertically in the composition of the device.

Inside the cylindrical hole 2.3 of the connecting end 2.1, at least two inserts-cages 4 are installed, holding the hinge 5 together.

The hinge 5 is made with an outer spherical surface 5.1 and with a cylindrical hole 5.2, which is oriented vertically in the composition of the device and is designed to accommodate the rod 3 inside it. plain bearing of any known design can be used.

Each insert-cage 4 is made with an inner spherical surface 4.1, the radius of which corresponds to the radius of the spherical surface 5.1 of the hinge 5, and with an outer cylindrical surface 4.2 interacting with the surface of the cylindrical hole 2.3 of the connecting end 2.1 of the driving part 2. For fixing in the vertical direction, the inserts-clips 4 are made with beads 4.3, and the connecting end 2.1 with a reciprocal end groove 2.4 in the upper part of the cylindrical hole 2.3.

In the lower area 1.2 of the connecting end 1.1 of the center part 1, a cylindrical seat 1.5 is made, in which an annular seat 6 with an upper spherical surface 6.1 is placed, on which an annular support 7 is installed. The annular support 7 is made with a flat upper supporting surface 7.1 and a lower spherical surface 7.2. The connecting end 2.1 of the driving part 2 rests on the upper support surface 7.1 of the annular support 7 with its lower support surface 2.2.

The spherical surfaces 5.1, 6.1 and 7.2 of the hinge 5, the annular seat 6 and the annular support 7, respectively, have a common geometric center O in the composition of the device.

The rod 3 is placed in the cylindrical hole 5.1 of the hinge 5 and in the holes made in the lower platform 1.2 and the upper shelf 1.3 of the connecting end 1.1 of the center part 1. Moreover, the cylindrical hole 5.1 of the hinge 5 and the cylindrical hole 2.3 of the connecting end 2.1 of the driving part are located coaxially, and the rod 3 , hinge 5, inserts-holders 4, connecting end 2.1 of the driving part 2 and connecting end 1.1 of the center part 1 are installed in each other sequentially and arranged concentrically.

The rod 3 is fixed on the upper shelf 1.3 of the connecting end 1.1 of the center part 1. A pin 8 can be used to fix the rod 3. In this case, the rod 3 is made with an annular groove 3.1 in the upper part. With its middle part, the pin 8 is located inside the annular groove 3.1 of the rod 3 and ends in the holes of the ears 9, which are made on the upper shelf 1.3 of the connecting end 1.1 of the Friday part 1 of the device.

The design of the proposed articulation device for freight cars provides symmetrical loading by longitudinal forces due to the location of the common geometric center O and, accordingly, the inserts-clips 4 and the spherical hinge 5 in the vertical direction with a minimum eccentricity relative to the horizontal axes of the centerpiece 1 and the driver 2 parts - the longitudinal axis O- x and transverse axis O-y. Due to the minimum eccentricity, an increase in the strength of the articulation device of freight cars is achieved under the action of tensile and compressive forces during the movement of the articulated cars.

The relative deviations of the driving part 2 of the coupling device necessary for the movement of articulated cars around the longitudinal axis x and the transverse axis y are provided by turning the driving part 2 together with the annular support 7 around a common center O, which is possible due to the contact between the lower support surface 2.2 of the driving part 2 and the upper support surface 7.1 of the annular support 7, as well as due to the rotation of the hinge 5 between the inner spherical surfaces 4.2 of the shells 4 relative to the common center O. The relative deviations of the driving part 2 of the clutch device around the vertical axis O-z, necessary for the movement of articulated cars, around the vertical axis O-z are provided by due to the rotation of the driving part 2 around the axis of the cylindrical hole 5.2 of the hinge 5. The use of the hinge 5 with a spherical surface, held by the inserts-clamps 4, in the connecting end 2.1 of the driving part 2, and the contact pair "annular seat 6 - annular support 7" with spherical surfaces in soy the connecting end 1.1 of the driving part 1 provides three degrees of freedom relative to the longitudinal O-x, transverse O-y and vertical O-z axes of the device and a sufficient value of the angle of movement of the driving part 2 relative to the center part 1 of the freight car articulation device.

Claims (3)

1. An articulation device for freight cars, containing a center part and a driving part, made with shanks for attachment to the center beams of cars and with connecting ends hinged by means of a rod, and inserts-clips with internal spherical surfaces holding a hinge with a spherical surface, characterized in that that the connecting end of the center plate part is made with a cavity, inside which the connecting end of the driver part is located, made with a cylindrical hole in which inserts are installed, the hinge with a spherical surface is made with a cylindrical hole, in the lower part of the connecting end of the center plate part, contacting spherical surfaces, an annular saddle and an annular support, on which the connecting end of the driving part rests, while the rod is placed in a cylindrical hole of the hinge with a spherical surface and in the holes made in the lower platform and upper to her shelf of the connecting end of the Friday part. 2. The device according to claim. 1, characterized in that the inserts-clips are made with beads for fixing in the end groove, made in the upper part of the cylindrical hole of the connecting end of the driving part. 3. The device according to claim. 1, characterized in that the rod is made with an annular groove for fixing on the upper shelf of the connecting end of the center part by means of a pin.

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