RU39559U1 - ASSEMBLY SIDE ASSEMBLY OF A THREE-ELEMENT CARGO TRUCK - Google Patents

Abstract

The utility model relates to railway transport and relates to the connection node of the side frames of a three-element freight truck with diagonal ties. The connection unit of the side frames of the three-element freight cart contains diagonally located intersecting rods, the end parts of which are connected by means of elastic hinges to the eyes of the T-shaped transverse brackets rigidly fixed to the side frames, while the diagonally located rods are made with recesses in the middle parts and are installed recesses towards each other. The design of the proposed utility model allows to ensure the optimal layout of the trolley by placing the diagonal intersecting rods in the same plane.

Description

The proposed utility model relates to the construction of a freight wagon trolley and relates to a connection unit of the side frames of a three-element freight trolley.

Known trolley model 18-100, containing two side frames, two wheelsets with axle units, a sprung beam, two sets of spring suspension, wedge vibration dampers, lever brake transmission (Pastukhov I.F. et al. Wagons. - M., Transport, 1988, pp. 74-77).

Known trolley has several disadvantages:

the trolley at high speeds is prone to intense tortuous movement;

unsatisfactory fits into the curved sections of the track, which leads to wear of the rails and flanges of the wheels.

These shortcomings are explained by the fact that three-element carts have insufficient rigidity in the plan.

A technical solution is known (US patent No. 6357360, IPC B 61 F 5/00, publ. March 19, 2002), in which to increase the rigidity of the trolley in plan, the side frames are equipped with plates spaced in the longitudinal direction and angled to the longitudinal axis of the frame, to which four spacers are fixed through elastic hinges, united by a central clamp installed between the side frames and wheel pairs.

The disadvantage of this technical solution is that the possibility of arranging the spacers in one plane is ensured by the presence of a central clamp, which in turn necessitates the manufacture of connections between the side frames of four spacers and two half clamps. The massive middle part of the structure causes the appearance of

intense vibrations, which negatively affects the strength of the welded joints of the spacers with clamps.

The closest technical solution to the proposed utility model is the junction of the side frames of the railway carriage (RF Patent No. 1782826, M. class. B 61 F 3/02; 5/52, publ. 23.12.92), containing the diagonal end rods of which end parts , through elastic hinges connected to the eyes of the T-shaped transverse brackets rigidly fixed to the side frames. In this technical solution, there are no clamps, and four spacers are replaced by two diagonal rods, which simplifies the design and increases reliability in operation compared to the analogue.

The disadvantage of this technical solution is the lack of a constructive solution that ensures the location of diagonal ties in one horizontal plane.

The proposed utility model solves the problem of rational layout of the junction of the side frames by arranging diagonal intersecting rods in the same plane.

To achieve the specified technical result, the connection unit of the side frames of the three-element cargo truck containing diagonally located intersecting rods, the end parts of which, by means of elastic hinges, are connected to the eyes of the T-shaped transverse brackets rigidly fixed to the side frames, made with recesses in the middle parts and installed recesses towards each other. Recesses in the rods can be performed by the method of plastic deformation of the metal, for example, by forging or stamping.

The proposed connection node of the side frames of the three-element cargo cart is illustrated by the drawings shown in figures 1, 2, 3.

Figure 1 shows a General view of the node from above.

Figure 2 - remote element A.

Figure 3 is a section bB in figure 1.

The node connection of the side frames of the three-element cargo truck contains diagonally located intersecting rods 1, the end parts of which are connected to the eyes 2 of the T-shaped transverse brackets 3, rigidly mounted on the side frames 4. Diagonally located intersecting rods 1, the end parts of which are connected to the eyes 2 spatial hinges made in the form of elastic washers 5, the preliminary tightening of which is carried out using pressure washers 6 with nuts 7. To ensure the location of rzhney 1 in one plane, the latter formed with recesses 8 in the middle parts and the recesses are set against each other.

The proposed node connection of the side frames of the three-element cargo trolley operates as follows. When the car moves, the resistance forces on the track side tend to move the side frames 4 of the trolley relative to each other in the longitudinal direction. This is prevented by diagonally located intersecting rods 1, limiting the possibility of movement of the side frames 4 relative to each other by a value determined by the deformation of the elastic washers 5. The diagonally located intersecting rods 1 also move relative to each other. The use of recesses 8 in the middle parts of the rods 1 allows free movement of the rods 1 relative to each other.

The use of recesses in the middle parts of the diagonally located intersecting rods allows to ensure the optimal layout of the cart by placing the diagonal ties in the same plane.

Claims (1)

A node for connecting the side frames of a three-element cargo truck containing diagonally located intersecting rods, the end parts of which are connected via elastic hinges to the eyes of T-shaped transverse brackets rigidly fixed to the side frames, characterized in that the diagonally located rods are made with recesses in the middle parts and are installed recesses towards each other.