RU130565U1 - RAILWAY SEMI-WAGON - Google Patents

Abstract

A railway gondola is proposed comprising a body and a running gear; the body includes side walls, end walls, and a frame on which said walls are located. The pivot beam of the frame has an enlarged mounting part of the lower pivot leaf for attachment to the spinal beam. The chassis includes a spring kit in which antifriction polyurethane pads are located on the working surfaces of the friction wedges. The proposed gondola car has improved strength characteristics and an extended service life due to hardening of the pivot assembly and ensuring proper damping of the gondola car’s vibrations during its operation.

Description

Technical field

This utility model relates to the field of railway transport, and more particularly to a gondola car, which is intended for the transportation of bulk and bulk cargoes that do not require protection from precipitation.

State of the art

Railway gondola cars are widely used for transportation of goods such as ore, coal, flux, timber, and other goods that do not require protection from atmospheric precipitation by rail. The gondola car body does not have a roof, which makes it possible to use various means of mechanization when loading and unloading gondola cars (bridge and gantry cranes, dumpers, etc.).

Known four-axle gondola car model 12-196-01 manufactured by OAO NPK Uralvagonzavod (see http://myrailway.ru/guide/item/12-196-01), which is the closest analogue of the claimed utility model. Gondola car model 12-196-01 consists of a body and chassis, including freight carts, as well as brake equipment. The body of a known open wagon includes two side walls, two end walls connected to each other, and a frame that contains a spinal beam, and end, pivot and intermediate beams located across it. The pivot beams of the frame contain lower pivot sheets, each of which has a mounting pad by which the pivot beam is connected to the spinal beam. The freight trolley contains a spring kit containing friction wedges. The side walls of the body of a known open wagon are reinforced by intermediate vertical struts located along the side walls at the same distance from each other, and a horizontal strapping running along the side walls supported by the specified vertical struts. The end walls of the body of a well-known open wagon are reinforced with additional longitudinal beams and horizontal strapping running along the end walls.

A disadvantage of the known open wagon is the low reliability of the attachment point of the pivot beams to the spinal beam. In addition, during operation, the details of a known open wagon are exposed to shock loads due to insufficient damping of vibrations by spring sets of freight carts.

Utility Model Disclosure

The objective of this utility model is to create a gondola car with improved strength characteristics and an extended service life.

This problem is solved by manufacturing a railway gondola car described in this utility model.

According to one implementation option, the proposed gondola car consists of a body and a running gear, the body including a frame that contains a spine beam and pivot beams, the pivot beams of the frame contain lower pivot sheets, each of which has a mounting pad, through which the pivot beam is connected to the spinal beam beam, and the chassis contains a cargo trolley with a spring kit containing friction wedges. The proposed gondola car is characterized in that the width of the indicated mounting platform is in the range from 656 millimeters to 686 millimeters, its length is in the range from 735 millimeters to 835 millimeters, and antifriction polyurethane linings are located on the working surfaces of the friction wedges of the spring set of the freight trolley.

This constructive solution provides a technical result in the form of increasing the reliability of the pivot assembly (the place of attachment of the pivot beams to the spine beam) by using a mounting pad with the declared dimensions, as well as by increasing the friction coefficient between the friction wedge and the spring bar, which reduces dynamic loads acting on the pivot node.

According to one particular embodiment, the joints of the spinal beam and pivot beams are reinforced with reinforcing plates that are welded longitudinally to the spinal beam to its bottom shelf end-to-end with the bottom sheet of the pivot beam. This design solution allows you to further strengthen the pivot node.

According to another particular embodiment, the gondola includes a torsion mechanism for opening the covers of the discharge hatches, which comprises a torsion bar with a diameter of 23 mm. The increase in the diameter of the torsion bar makes it easier to open the covers of the unloading hatches and provide the ability to perform this operation with the efforts of one person.

According to another particular embodiment, the height of the side walls and end walls of the proposed open wagon is from 2420 to 2430 mm. Thus, the gondola car body volume can be increased and the economic efficiency of transportation can be increased.

According to another particular embodiment, at least the frame parts and the walls of the gondola car body are made of steel grade 09G2S, 09G2D, or 10KhDP, which provides the possibility of reliable operation of the gondola car in climatic zones with temperature conditions from + 60 ° C to -60 ° C .

Brief Description of the Drawings

The design features of the proposed railway gondola will become more apparent from the following description of the preferred implementation, given with reference to the accompanying drawings, in which:

figure 1 shows a General view and an end view of the proposed railway gondola according to a preferred embodiment;

figure 2 shows a side view and an end view of the body of the gondola car shown in figure 1;

figure 3 shows a side view and a top view of the frame of the gondola car shown in figure 1;

4 shows a perspective view of a pivot beam, on which, for clarity, the lower pivot sheet is separated from the beam;

figure 5 shows a bottom view of the lower pivot leaf of the pivot beam of the gondola car frame shown in figure 4;

Fig.6 shows a cross section of the spring set of the freight car of the open wagon shown in Fig.1.

Utility Model Implementation

Figure 1 shows a General view of the proposed railway gondola 1 according to a preferred embodiment. Said gondola 1 includes a body 2, a running gear 3 on which a body 2 is mounted, and an impact-pull coupling device 4 connected to the body 2.

As can be seen from figure 2, the body 2 includes a frame 7, two side walls 8, two end walls 9 and floor 10. Floor 10 is formed by fourteen covers of unloading hatches 12 for unloading bulk cargo gravitationally. Manhole covers 12 open and close using a torsion mechanism 13, mounted on the frame 7 and connected to the specified cover. The torsion mechanism 13 comprises a torsion bar connected to the manhole cover, which when opening the manhole cover is twisted around its axis by an angle from 25 ° to 35 °. The torsion bar has an increased diameter, which is 23 mm, which makes it easier to open the hatch cover 12 and to ensure that this operation can be performed by one person. The upper strapping 15 is fixed on the upper edge of the wall 8, and the lower strapping 16 is fixed along the lower edge of the wall 8. The stiffness of the walls 8 is provided by intermediate vertical posts 17 made of omega-shaped profile and reinforced with plates at the junctions to the lower strapping. Reinforcing plates (not shown) are installed end-to-end with a shelf of the lower strapping 16 and the edge of the rack 17. Each rack 17 corresponds to two reinforcing plates located on its sides. Inside the profile of the struts 17 are additionally welded strips that increase the resistance of these racks to bending. The end walls 9 are reinforced with longitudinal beams 18. The upper strapping 15 is made of an open box-shaped profile, which allows to increase the resistance to deformation during unloading on car dumper.

As can be seen from figure 3, the frame 7 of the body has a spinal beam 18, consisting of two Z-shaped profiles welded together by a longitudinal seam. The frame 7 also includes two end beams 19, two pivot beams 20 and four intermediate beams 21 located across the spinal beam 18 and fixedly mounted on it. The pivot beam 20 is designed to transfer the load from the body to the cargo truck, as a result of which the junction of the pivot beam 20 with the spine beam 18 (pivot assembly) is subject to intense wear.

As can be seen from figure 4, the pivot beam 20 has a box section, which contains two longitudinal vertical sheets 24, and two transverse vertical sheets (not shown), located transversely between the sheets 24, as well as the upper pivot sheet 25 and the lower pivot sheet 26.

The pivot beam 20 is connected to the spinal beam 18 by means of the lower pivot sheet 26 shown in FIGS. 4 and 5. The lower pivot sheet 26 at the intersection with the spinal beam has a mounting pad 27 and two bent sections 28 extending longitudinally on both sides of the mounting pad 27 and forming bends at the boundary between the mounting platform 27 and the bent portion 28. To ensure the strength of the connection node of the spinal and pivot beams, the platform 27 has a width between bend points of 656 to 686 mm, and a length between edges of 735 to 835 mm. In addition, at the junction of the pivot beam 20 and the spinal beam 18 longitudinally last, reinforcing plates are placed, each of which is butt-joined to the bottom sheet of the pivot beam 20 and welded to the lower shelf of the Z-shaped profile of the spinal beam 18, which can further increase the strength of the frame 7 .

Gondola chassis 2 includes a freight trolley equipped with a spring kit to dampen gondola vibrations during its operation. As can be seen from Fig.6, the spring kit includes a spring bar 30, which has an inclined interaction surface, two friction wedges 31, each of which has an inclined working surface installed in cooperation with the corresponding inclined surface of the spring beam 30. The spring set also includes a set of springs consisting of internal springs 32 and external springs 33, which abut against the base of the frame of the cargo trolley in which the spring kit is installed, and support the beam 30 and wedges 31. Wedges 31 with one the first side interact with the beam 30 on the working surface, and on the other hand rely on the walls 34 of the frame of the cargo truck, in which the spring kit is installed. To improve the damping of vibrations, which the gondola car is subject to during operation, antifriction polyurethane linings 35 are located on the working surfaces of the wedges 31. During vertical vibrations between the wedges 31 and the linings 35, frictional forces arise that create resistance to the oscillatory motion of the pressure beam 30, thereby improving the damping of vibrations, transferred from the cargo trolley to the gondola car frame. Said pads 35 may be fastened with suitable fastening means, for example bolts.

The chassis 2 also includes a brake system (not shown in the drawings). The specified brake system includes two brake cylinders, each of which interacts with one of the cargo bogies. The output rods of said brake cylinders, by means of a system of levers, brake pads are pressed against the rolling surfaces of the wheels of the trucks. Each cylinder corresponds to a brake lever regulator, which regulates the stroke of the brake cylinder rod and thus maintains a constant gap between the rolling surface of the wheels and brake pads as they wear.

Improving the cushioning characteristics of the spring set, as well as increasing the strength of the pivot assembly, allows to increase the carrying capacity of the gondola and increase the volume of the body to 90 m ³ by increasing the height of the walls 8 and 9 to 2420-2430 mm. Thus, the economic efficiency of freight transportation using open wagons can be increased. Beams 18, 19, 20, 21, as well as walls 8, 9 are made of steel grades 09Г2С, 09Г2Д, 10ХНДП, which ensures the reliability of a gondola car in climatic zones with temperature conditions from + 60 ° С to -60 ° С.

Claims (5)

1. A railway gondola containing a body and a chassis, the body including a frame that contains a spine beam and pivot beams, the pivot beams of the frame contain lower pivot sheets, each of which has a mounting platform by which the pivot beam is connected to the spine beam and the chassis the part contains a freight trolley with a spring kit containing friction wedges, characterized in that the width of the specified mounting pad is in the range from 656 mm to 686 mm, its length is in the range from 735 m to 835 mm, and on the working surfaces of the friction wedges spring group trolley disposed antifriction polyurethane lining. 2. The gondola according to claim 1, in which the junction of the spinal beam and pivot beams are reinforced with reinforcing plates that are welded longitudinally to the spinal beam to its bottom shelf end-to-end with the bottom sheet of the pivot beam. 3. Gondola according to claim 1, comprising a torsion mechanism for opening the covers of unloading hatches, which contains a torsion bar with a diameter of 23 mm 4. Gondola according to claim 1, the height of the side and end walls of which is from 2420 to 2430 mm. 5. Gondola according to claim 1, at least the details of the frame and the body wall of which are made of steel grade 09G2S, 09G2D or 10KHD.

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