RU197099U1 - CONVEYOR TRANSPORTATION ROLLER - Google Patents

Abstract

The utility model relates to the field of transport engineering and is intended for operation during conveyor transportation of goods, including rail lashes and rail sleepers at rail welding and link assembling enterprises, as well as supports when transporting them to the place of work on special platforms. The technical result provided by the utility model is to increase the period of non-repair operation of a roller for conveyor transportation of goods. A roller for conveyor transportation of goods, comprising a cylindrical housing mounted on an axis, structural elements fixing the position of the housing and providing rotation of the housing around the axis, snap rings, covers; structural elements that fix the position of the housing and provide rotation of the housing around the axis are bushings, pressed between the housing and the axis, performing the function of sliding bearings; rings are installed at the ends of the bushings; the bushings and rings are made of a polymeric oil-containing material; cuffs are inserted in front of the covers. 2 ill.

Description

The technical field to which the utility model belongs.

The utility model relates to the field of transport engineering and is intended for operation during conveyor transportation of goods, including rail lashes and rail sleepers at rail welding and link assembling enterprises, as well as supports when transporting them to the place of work on special platforms.

The prior art.

The prior art knows the technical solution according to the patent of the Russian Federation for utility model No. 188516, LLC Euro-Asian Trading Company, B65G 39/09, F16C 35/00, publ. 04/16/2019, which presents a description of the housing of the bearing assembly made in the form of a support with an internal bearing seat made of a composite material containing a polymer binder and a mineral filler, the mass fraction of the mineral filler in the composite material is 60-67%. Common features that coincide with the essential features of the claimed utility model are: a bearing assembly for installation in conveyor rollers made of a composite material containing a polymer binder.

A technical problem that could not be solved using the above analogue of a utility model is that for the manufacture of a bearing assembly intended for installation in conveyor rollers, a composite material consisting of a polymer binder and a mineral filler in the form of sand (river, quarry) is used or quartz), which reduces the impact of operational loads on bearings, but does not solve the issues of corrosion, jamming and destruction of rolling bearings, causing detachment of their periodic maintenance during operation.

The technical solution for the utility model patent CN 205347903 (U), CHENGDU XINZHU ROAD & BRIDGE, EB01B 29/16, publ. 06/29/2016, which presents a description of a roller device for moving a rail containing a base, including a base and two side plates, as well as a cylindrical body, an axis, rolling bearings (structural elements that fix the position of the body and ensure the rotation of the body around the axis), spacer sleeves, inner rings (snap rings). Common signs that coincide with the essential features of the claimed utility model are: a roller device for moving a rail containing a cylindrical body, an axis, structural elements that fix the position in the body space and provide rotation of the body, retaining rings.

The disadvantage of the analogue is that the load on the roller is perceived at the point of contact of the balls or rollers of the bearing with the outer and inner bearing rings rigidly fixed through the retaining rings and spacer sleeves, which requires periodic lubrication and reconfiguration (tightening the nut) of the spacer sleeve system as the bearings wear. The design of the roller does not allow its long-term maintenance-free operation at high loads, because with a large weight of the transported load, the destruction of bearings is likely. Closest to the claimed technical solution is a flange roller for a rail train, offered for sale on the Internet (see http://samarapromsnab.ru/roliki_rebordnye) of PROMSTROY LLC (TIN: 6319214230), containing a metal cylindrical body, a metal axis, metal bearings (structural elements fixing the position of the housing and providing rotation of the housing around the axis), two metal retaining rings, two metal covers. Common signs that coincide with the essential features of the claimed utility model are: a roller containing a metal cylindrical body, a metal axis, structural elements that fix the position of the body and ensure the rotation of the body around the axis.

The technical problem in the operation of the above prototype is that the main load falls on the metal bearings. To maintain the roller in working condition, it becomes necessary to periodically disassemble the roller and lubricate the inner cavity of the bearings. The design of the above roller does not provide structural elements that prevent the penetration of abrasive particles into the roller, causing the roller to fail.

Disclosure of the essence of the utility model.

The technical result provided by the utility model is to increase the period of maintenance-free operation of the roller for conveyor transportation of goods. The technical result is achieved by making a roller for conveyor transportation of goods, containing a cylindrical body mounted on an axis, structural elements that fix the position of the body and provide rotation of the body around the axis, retaining rings, covers, while structural elements that fix the position of the body and provide rotation of the body around the axis are bushings pressed between the housing and the axis, which perform the function of sliding bearings; rings are installed at the ends of the bushings; the bushings and rings are made of a polymeric oil-containing material; cuffs are inserted in front of the covers.

The increase in the period of maintenance-free operation of the roller for conveyor transportation of goods (hereinafter roller) is provided by:

- the implementation of structural elements that fix the position of the housing in space and provide rotation of the housing around the axis, in the form of bushings pressed between the housing and the axis, acting as sliding bearings, which makes it possible to constructively increase the wall thickness of the housing and the diameter of the axis, eliminates the formation of a cavity between the housing and axis, preventing the destruction of the wall of the housing from shock;

- the use of bushings that perform the function of sliding bearings made of polymer oil-containing material, which eliminates contact stresses arising in the rolling bearings, eliminates the need for periodic maintenance of the roller during its operation due to the absence of the need to lubricate the friction parts of the roller, because polymer oil-containing material incorporates a mixed lubrication system that during the entire life of the roller does not dry out, does not need to be replenished and is not removed during machining or friction;

- the presence in the design of the roller rings made of a polymer oil-containing material that exclude friction of the side surfaces of the bushings on the metal (between the bushings and the metal separating structural element, between the bushings and the metal thrust rings), preventing their wear;

- the presence of cuffs inserted in front of the covers, which prevents the penetration of dust, abrasive particles into the roller, leading to increased wear of the bushings and the roller exit from the working state.

A brief description of the drawings.

The utility model is illustrated by drawings, where in FIG. 1 shows a view of a roller for transporting a sleeper rail (universal removable equipment (USO) roller) and a view of a flange rail carrier when using a separating structural element in the form of an annular protrusion on the inner surface of the casing (side view in section); in FIG. 2 shows a view of a roller for transporting a sleeper rail (universal removable equipment (USO) roller) and a view of a flange rail carrier when using a separating structural element in the form of a collar on the axle in a roller construction (side view in section).

The positions in the figures indicated:

1 - cylindrical body,

2 - axis

3 - bushings (which are structural elements that fix the position of the housing and provide rotation of the housing around the axis, performing the functions of sliding bearings),

4 - polymer rings,

5 - polymer rings,

6 - thrust rings,

7 - covers,

8 - cuffs,

9 - retaining rings,

10 - retaining rings,

11 is a separating structural element.

Implementation of a utility model.

The design of the roller includes a cylindrical metal housing 1 mounted on a metal axis 2. Inside the roller between the housing 1 and the axis 2, two bushings 3 are pressed, separated by a structural element 11, interacting with the surface of the axis 2, fixing the position of the housing and providing free rotation of the housing 1 around axis 2, performing the function of plain bearings, made of a polymeric oil-containing material, which is used, for example, oil-filled caprolon (black), which has in its composed of a mixed lubrication system. In both ends of each sleeve 3 are installed polymer rings 4, 5, also made of a polymer oil-containing material. In the opposite end of the separating structural element 11, the end of each of the sleeves 3, after the polymer rings 5, in the following sequence, thrust rings 6 are installed symmetrically relative to the separating structural element 11, after which the retaining rings 9 and then the covers 7. are installed. Inside the roller between the retaining rings 9 and the covers 7 inserted cuffs 8, made in the form of seals made of reinforced rubber. After the covers 7, snap rings 10 are mounted on the housing 1.

The design and connection sequence of the structural elements of the roller for transporting a rail lash (roller flange rail train) and the roller for transporting the rail sleeper (roller universal removable equipment (USO)) do not have fundamental differences.

The inventive roller used for operation during conveyor transportation of goods, works as follows. During operation, the roller is subjected to significant shock loads acting on the cylindrical housing 1 mounted on the axis 2. To create conditions for effective long-term maintenance-free operation of the roller at the highest shock loads: bushings 3 pressed into the roller between the housing 1 and the axis 2 located on both the sides of the separating structural element 11 are made of a polymer oil-containing material, maximizing the sliding area with an extremely low coefficient of friction. At the ends of the bushings 3, four rings of polymer rings 4, 5 are installed, which are also made of a polymer oil-containing material, eliminating friction between the bushings 3 and the metal separating structural element 11, between the bushings 3 and the metal thrust rings 6. Available in the composition of the polymer oil-containing material the lubrication system during the entire life of the roller does not dry out, does not need to be replenished and is not removed during machining or friction, eliminating the need for lubrication of parts of the role ka. As a result of the replacement of metal rolling bearings by bushings 3, tightly seated between the housing 1 and the axis 2, the thickened wall of the cylindrical housing 1 and the axle 2 enlarged in diameter are capable of absorbing an increased shock load. The separating structural element 11 fixes the housing 1 against movements along the axis 2, in addition, together with the thrust rings 6, the separating structural element 11 limits the maximum abrasion of the bushings 3. Cuffs 8, made of reinforced rubber, inserted between the covers 7 and the retaining rings 9, prevent the penetration of abrasive particles inside the roller, preventing wear of the polymer sleeves 3. The retaining rings 9 fix the position of the thrust rings 6. The separating structural element 11 in the construction of the roller can be made bo on the axis 2 as the collar (FIG. 2) or in the form of an annular protrusion on the inner surface of the cylindrical body 1 (FIG. 1), depending on the need to increase axis strength, or housing, as well as from technological manufacturer's process.

To assess the effect of replacing metal rolling bearings in the roller design on bushings made of a polymer oil-containing material that perform the function of sliding bearings, strength calculations of sliding bearings (using the example of a flange rail train roller) were performed under certain conditions of operation of the roller. The calculation results presented in the table below revealed high performance of sliding bearings (bushings), which positively affect the increase in the period of non-repair operation of the roller.

The advantage of the inventive design of the roller for conveyor transportation of goods is the elimination of the need for periodic maintenance and repair of the roller during its operation.

Claims (1)

A roller for conveyor transportation of goods, comprising a cylindrical body mounted on an axis, structural elements fixing the position of the housing and providing rotation of the housing around the axis, retaining rings, covers, characterized in that the structural elements fixing the position of the housing and providing rotation of the housing around the axis are bushings pressed between the housing and the axis, performing the function of sliding bearings; rings are installed at the ends of the bushings; the bushings and rings are made of a polymeric oil-containing material; cuffs are inserted in front of the covers.

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