RU2647111C2 - Floor covering of the dump car body - Google Patents

Abstract

FIELD: transportation.

SUBSTANCE: invention relates to railway transport, and more particularly to the construction of the body of a dump car, and can be used at mining and processing plants to transport waste products that have a high heating temperature. Floor of the body of the dumpcar car contains the base (4) of the flooring installed on the frame of the longitudinal (1) and transverse (2) beams, on which there is a cushioning layer (5) made of wood and an upper protective sheet (3). Between the upper safety sheet (3) and the wooden cushioning layer (5), a metal grating (6) is installed.

EFFECT: invention extends the maintenance-free life of the floor covering of the body of the dump car.

1 cl, 1 dwg

Description

The invention relates to railway transport, and more particularly to the construction of a dump car wagon body, and can be used at mining and processing plants for the transport of industrial wastes having a high heating temperature (200-300 ° C).

Known flooring of the body of the dump truck (RU 96108086 A, IPC B61D 9/06, publ. 07/10/1998), containing mounted on the frame the base of the flooring and the safety sheet, between which is located a shock-absorbing layer made of wooden boards, tightly pressed one to the other. The cushioning layer is provided with additional elastic elements that wrap wooden boards on three sides.

The disadvantages of the described design of the flooring of the dump truck can be attributed to the fact that when transporting hot waste at mining and processing plants, such flooring does not withstand the high temperature of the heated load (300-400 ° C) and after a short period of operation, heating of the wooden shock-absorbing layer leads to its slow decay and destruction. As a result of the destruction of the wooden cushioning layer, it ceases to fulfill its function of amortizing the load, especially when the car is loaded with large pieces of cargo, which violate the integrity of the weakened cushioning layer, which also leads to a gradual increase in the dynamic load on the longitudinal and transverse elements of the upper frame , reducing the period of its overhaul.

The invention solves the problem of extending the maintenance-free period of the flooring of a dumpcar used for the transportation of heavy goods having a high heating temperature (up to 300 ° C) by reducing the heating of the wooden cushioning layer of the flooring and increasing its impact strength.

To obtain the necessary technical result in the flooring of the dump car wagon containing the base of the flooring installed on the frame of longitudinal and transverse beams, on which there is a shock-absorbing layer made of wood and an upper safety sheet, it is proposed between the upper protective sheet and the wooden shock-absorbing layer install the metal grill.

The attached to the description of the drawing shows the proposed design of the flooring of the floor of the car-dump car in cross section. In the drawing, the following notation:

1 - a longitudinal beam;

2 - transverse beam;

3 - upper protective sheet;

4 - base;

5 - shock-absorbing wood layer;

6 - metal grill.

In the present invention, to eliminate the heating and decay of the cushioning wood layer 5, a metal grate 6 is installed on it, with which an air gap is formed between the upper safety sheet 3 and the cushioning wood layer 5. The coefficient of thermal resistance depends on the height of the air gap. The metal grill 6 can be welded from wire and have several layers.

As the tests performed under operating conditions on dump cars with a flooring made using a metal grill showed that an air gap of 16-20 mm in height can reduce the heating of the shock-absorbing wood interlayer 5 to a sufficient degree to prevent its premature destruction. In addition, the metal grate (a double-layer grate welded from a wire with a diameter of 8-10 mm was used in the tests) significantly increased the impact strength of the flooring, which positively affected the entire structure of the upper frame of the car. The flooring of the carriage withstood loading with large pieces of cargo without visible significant damage for a long period.

Thus, the proposed flooring of the body floor of a dump car designed for the transport of heavy goods with a high heating temperature, in comparison with the closest analogue, avoids heating the shock-absorbing wooden layer of the flooring and increases its impact strength, which allowed to extend the period of the maintenance-free period of operation of the car by 30-50%.

Claims (1)

The flooring of the dump truck car body containing the base of the flooring mounted on a frame of longitudinal and transverse beams, on which there is a shock-absorbing layer made of wood and an upper safety sheet, characterized in that a metal grill is installed between the upper safety sheet and the wooden shock-absorbing layer .

Images