RU178588U1 - CLEANING MACHINE - Google Patents

Abstract

The invention relates to the arrangement of machines for removing the ballast layer of a railway track, namely, to the design of the chain working bodies of crushed stone cleaning machines, and is intended for use in the designs of movable joints of the rake and connecting links of the scraper scraper chain. The scraper-chain working body contains 1 scraper mounted on the chain 2, in the sole groove of which the roller support 4 is mounted using the axis 3. Moreover, the roller support 4 is installed in the groove of the sole of the scraper 2 with gaps z from the bottom of the scraper a and b from the walls of the scraper. At the working chute 5, the lower and one of the side walls are associated belt conveyors 6 and 7, moving in one direction and equipped with low-power drives 8 and 9. The conveyors are located on roller bearings 10 and 11, and their tension it is provided with standard tensioning devices, for example, screw type. The proposed design of the cutting device of the rubble-cleaning machine allows to reduce abrasive wear of the working chute, to reduce friction in the sole installed on the chain of the scraper and, as a consequence, reduces the required power carving device. 6 ill.

Description

The technical field to which the utility model relates.

The utility model relates to the arrangement of machines for removing the ballast layer of a railway track, namely, to the design of the chain working bodies of crushed stone cleaning machines, and is adapted for use in the designs of movable joints of rake and connecting links of a scraper scraper chain.

State of the art

Known dredging chain for transporting crushed stone ballast bed, having connected via hinges links guided along the transport chute. The chain links are equipped with scrapers for interacting with crushed stone. The sections of the inner surface of the gutter, along which the chain links slide when moving along the gutter, are equipped with overlays made of highly wear-resistant material. To ensure the possibility of changing these pads, they are detachably connected to the walls of the gutter (see, for example, the description of the patent of the Russian Federation for invention No. 2264496 in classes ЕВВ 27/04, E02F 3/14, B65G 17/40 and B65G 19/04, with priority dated July 14, 2004).

The disadvantage of this chain is the high abrasive wear of the transport trough and chain links, due to the significant sliding friction forces arising from the operation of the device between the chain and the trough, as well as between the surface of the trough and the rubble sliding on this surface.

Known chain conveyor for gripping and transporting contaminated ballast of the railway track for a crushing machine, equipped with an endless chain guided along the transport chute, having links, some of which are equipped with scrapers for interacting with crushed stone. The chain conveyor driven by the drive passes along two inclined longitudinal grooves and a transverse guide passed under the rail-sleeper grid. The inclined sections of the gutter are equipped with rollers mounted above and below the chain with horizontal axes of rotation, while the chain links are provided with guide plates below and below for guiding the chain between these rollers (see, for example, RF patent for invention No. 1296015 in class Е01В 27/11, with priority of 12/9/1983).

The direction of the chain links on the inclined sections of the groove along the horizontal axis rollers reduces the abrasive wear of these sections of the groove. However, the position of the rollers does not coincide with the position of the center of mass of the chain moving the crushed stone along the transport trough. This causes additional loads on the chain and leads to its rapid wear. In addition, the abrasive wear of the gutter from interaction with crushed stone moving along it is also preserved.

A crushed stone cleaning machine is known, comprising: a guide chute; an endless bar (cutting) chain installed in the specified trough on guide rollers, having ridges and fingers on the links for gripping and transporting crushed stone; a chain drive and a conveyor for feeding crushed stone into the cleaning system, while on the inner surface of the guide chute there are removable panels with a protective coating in the form of carbide plates, and the plate installed at the entrance to the chute has a drop-shaped front edge in the cross section (see, for example, patent RF invention №2306378 for classes ЕВВ 27/10, B65G 11/16 and B65G 19/28, with priority dated 06/22/2005).

This technical solution allows to reduce the wear rate of the gutter from the rubble transported during cleaning, however, during the operation of the bar chain, significant sliding friction forces remain between the scrapers installed on the chain and the gutter, as well as between the surface of the gutter and the rubble sliding on this surface.

The closest analogue is a chain conveyor with an endless chain, at least partially guided along the transport chute, in which the chain consists of loading elements that are equipped with scrapers, while at least part of the loading elements are equipped with rolling elements installed on the bottom of the transportation troughs with roller elements, the rolling surface of which is located below the lower surface of the loading elements on which they are installed, and on the loading elements above the bottom shelves are cantilevered between the scrapers of adjacent loading elements so that the roller element corresponding to these loading elements is located in the recess of the shelf covering it from above or in the neckline of the shelf (see, for example, RF patent for invention No. 2333878 for classes B65G 19/04 and ЕВВ 27/04, with priority of 08/09/2006).

This technical solution partially solves the problem of increased friction in the places where the soles of the scrapers, ballast and troughs interact, however, the abrasive wear of the trough from interacting with crushed stone moving along it remains.

Thus, all the described structures are subject to abrasive wear of the working trough when the cut ballast ballast moves along it, and also do not sufficiently reduce friction at the points of interaction of the soles of the scrapers, ballast and troughs.

Utility Model Disclosure

The objective of the utility model is to create an improved cutting device with a closed scraper-chain working body, which, in comparison with known technical solutions, has reduced abrasive wear of the working chute and reduced friction at the bottom of the scraper mounted on the chain to reduce the required power of the cutting device while maintaining its performance.

The technical result of the utility model is to increase the wear resistance of the device while reducing power consumption and maintaining performance.

The above technical result is achieved due to the cutting device of the rubble-cleaning machine with a closed-type scraper-chain working body containing roller bearings installed with the possibility of rolling in the soles of the scrapers, while the lower and side walls of the working chute are made in the form of drive belt conveyors, the working sections of the belts of which made with the ability to move at the same speed and direction of movement of the scraper-chain working body.

When the support roller is installed in the bottom of the bar chain scraper, its surface is not abraded to the same extent due to the fact that the blade does not move along the rubble but is rolled by the support roller (the sliding friction force is replaced by rolling friction force), as well as not wear of the surface of the gutters occurs, due to the fact that the speed of the cut ballast and conveyor belts are the same.

The decrease in the required power of the cutting device is due to the fact that the component of the rolling friction force is significantly lower than the component of the sliding friction force, and the force required to move the ballast along the working chute, the two walls of which are drive belt conveyors in which the working sections of the belts move with the same speed and direction the movement of the scraper-chain working body is also significantly lower than the force required to drag the ballast along the metal trough.

Implementation of the proposed design is carried out by manufacturing a special blade, which has a groove that provides unhindered rotation of the roller, holes for installing the roller axis, installation of roller bearings of conveyors in place of the lower and one of the side walls of the working chute, as well as installed belts, drives and tensioning devices.

Brief Description of the Drawings

in FIG. 1 - scraper-chain working body (top view), equipped with associated conveyors (only the side conveyor is shown);

in FIG. 2 is a view A in FIG. 1, a scraper-chain working body equipped with associated conveyors (only the lower conveyor is shown);

in FIG. 3 is a section BB in FIG. 2. a cross section of the working chute equipped with associated conveyors, with the shown blade, equipped with an axle and a roller support;

in FIG. 4 - a scraper equipped with a roller support and an axis, with a designated guaranteed clearance between the walls of the scraper and the roller support;

in FIG. 5 is a view B in FIG. 4, a scraper (including a local cut), equipped with a roller support and an axis, with a designated guaranteed clearance between the bottom of the scraper and the roller support;

in FIG. 6 is a view D in FIG. 4 (bottom view), a scraper equipped with a roller support and an axle.

Utility Model Implementation

As shown in the figures, the scraper-chain working element contains a scraper 2 mounted on the chain 1, in the groove of the sole of which the roller support 4 is mounted using the axis 3. scraper.

At the working chute 5, the lower and one of the side walls are associated belt conveyors 6 and 7, moving at the same speed and direction of movement of this working body and equipped with low-power drives 8 and 9. The conveyors are located on roller bearings 10 and 11, and their tension is ensured standard tensioning devices, for example, screw type.

When the crushing machine is operating in the crushed stone cutting section, the roller supports of the 4 scraper blades of the working body roll on the ground (ballast crushed stone), and in the section of the working chute 5, the rollers do not actually rotate, since the speed (V1) of chain 1 is equal to the speed (V2) of the motion installed on the groove 5 of the lower conveyor 6.

Thus, the proposed design of the cutting device of the rubble-cleaning machine allows to reduce the abrasive wear of the working chute, to reduce friction at the bottom of the scraper mounted on the chain and, as a result, allows to reduce the required power of the cutting device.

Positions in the drawings:

1 - chain (scraper-chain working body);

2 - a scraper;

3 - axis (roller support of the scraper);

4 - roller support (scraper);

5 - working trough (cutting device);

6, 7 - associated belt conveyors;

8, 9 - low-power drives (belt conveyors);

10, 11 - roller bearings (belt conveyors).

LITERATURE

1. RF patent for the invention No. 2264496 in classes ЕВВ 27/04, E02F 3/14, B65G 17/40 and B65G 19/04, with priority dated July 14, 2004;

2. RF patent for the invention No. 1296015 in the class ЕВВ 27/11, with priority dated 12/9/1983;

3. RF patent for the invention No. 2306378 in classes ЕВВ 27/10, B65G 11/16 and B65G 19/28, with priority dated 06.22.2005;

4. RF patent for the invention No. 2333878 in classes B65G 19/04 and ЕВВ 27/04, with priority dated 08/09/2006.

Claims (1)

Cutting device of a crushed stone cleaning machine with a closed-type scraper-chain working body containing roller bearings installed with the possibility of rolling in the soles of the scrapers, characterized in that the lower and side walls of the working chute are made in the form of conveyor belts, the working sections of the belts of which are movable with the same speed and direction of movement of the scraper-chain working body.

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