RU2682156C1 - Repair kit for anchor rail fastening arf and method for repair of anchor fastening - Google Patents

Abstract

FIELD: construction.SUBSTANCE: invention relates to the field of repair and rehabilitation of railway tracks. Repair kit for anchor fastening ARF contains a rail chair, anchor bolt and rail pad. At one end of the rail pad there is a hole for the installation of an anchor, and at the other end there is a hole for passing an intact anchor head through it. Dismantle a damaged fastening unit when repairing the rail fastener ARF. Remove the damaged head. Hang the rail and install the rail pad with an under rail pad. Lower the rail and fix it on the restored fastening.EFFECT: increase in the safety of train movement along the restored sections of the railway is achieved.5 cl, 4 dwg

Description

"The technical field to which the invention relates"

The invention relates to railway transport, to railway transport structures, in particular to rail fasteners, namely, to a repair kit for APC anchor rail fastenings and to a method for repair of APC anchor rail fasteners with a broken or damaged head of an arch-type anchor, which allows to restore operational characteristics of the damaged APC rail anchor.

"Prior art"

Known repair and repair kit RK-ARS and a method of repairing rail fastenings (patent No. 124689, RU, 2013) for the temporary restoration of the operational characteristics of a damaged anchor rail fastening until the defect is removed, i.e. before replacing the sleepers with a damaged anchor. The disadvantages of the kit RK-ARS and the method of repairing rail fastening are

1. The product is suitable only for the temporary restoration of the operational characteristics of a damaged anchor rail fastening until the defect is removed, i.e. before replacing sleepers with a damaged anchor;

2. Limited use only on railway tracks damaged by rolling stock;

3. The limitation in ensuring safe passage of trains in the service life to the time the tonnage has been reached is not more than 50 million tons of barrels;

4. The inability to use it to restore the service properties of a damaged single sleepers, including due to the high cost of the product.

"Disclosure of inventions"

The technical result of the present invention is:

1. Reconstruction of a railway track with an APC anchor rail fastening for the movement of trains after fractures of anchors on reinforced concrete sleepers due to an accident;

2. Improving the reliability of the railway track with the fastening of the ARS due to the repair of single broken (damaged) heads of frame-arch type anchors;

3. Improving the safety of train traffic by restoring the pressure force of the rail, and replacement of reinforced concrete sleepers is not required;

4. Long service life of the repair kit.

The technical result is achieved due to the repair kit for the APC anchor rail fastening, including a rail lining, an anchor bolt and an under-rail gasket (under-rail shock absorber). While the lining contains the first end part, the Central part and the second end part. At the first end part, there is a head similar to the head of a frame-arch type anchor, consisting of two brackets, and a hole designed for installing an anchor bolt. An under-rail gasket is installed on the central part, and on the second end part there is an opening intended for passing (threading) through it an intact anchor head.

According to the present invention, the surface of the Central part of the rail lining is located below the surfaces of the first and second end parts due to the presence of bevels on both sides of the Central part.

According to the present invention, the hole at the first end portion is round in shape and the hole at the second end portion is rectangular.

The technical result is also achieved due to the repair method of the APC anchor rail fastening with a broken or damaged frame-arch type anchor head, which consists in dismantling the damaged anchor rail fastening unit, removing the damaged frame-arch type anchor head from the reinforced concrete sleepers, hanging the rail, installing the above repair complete set, lowering the rail and completing the installation of the APC anchor rail fastening in the usual way.

According to the present invention, the installation of a repair kit includes passing (threading) an undamaged head of an arch-type anchor through a rectangular hole located on the second end part of the rail lining, drilling through a round hole on the first end part of the rail lining, holes in the reinforced concrete sleepers, screwing the anchor bolt through the hole located on the first end of the rail lining, the rail lining to the railroad tie and laying the rail rail on the central part of the rail lining.

"Brief Description of the Drawings"

The present invention is illustrated by the following drawings:

In FIG. 1 shows the main view of the repair kit;

In FIG. 2 is a top view of a repair kit.

In FIG. 3 and FIG. 4 is a view of a repaired anchor rail fastener with an installed repair kit assembly.

"Implementation of the invention"

The repair kit for the APC anchor rail fastening comprises a rail lining 1 (which can be conditionally divided into three integral parts), on the first end part (i.e., on one side of the rail lining 1) which has a head similar to the head of a frame type anchor, consisting of two brackets 2, and a round hole 4, designed for installation of the anchor bolt 5. On the second end part of the rail lining 1 (i.e., on its other side) there is a rectangular hole 3, designed for transmission (threading) through it an intact anchor head. An anchor bolt 5 is screwed into the hole 4. The rail liner 6 is mounted on the central part located in the recess (i.e., below the surfaces of the first and second end parts due to the presence of bevels on both sides of the central part) of the rail lining 1.

The repair kit for the APC anchor rail fastening is designed to replace broken / damaged / worn anchor frames of the arch-frame type of anchor rail fastening: first of all, the head and bracket of the anchor. By partially dismantling the APC anchor rail fastening with broken / damaged / worn anchors, installing the repair kit for the anchor rail fastening and the subsequent installation of the APC anchor rail fastening in the usual way using previously used parts and assemblies (spring terminals, insulators (damping corners), mounting regulators (monoregulators), etc.) it is possible to recreate the integrity of the design of the ARS anchor rail fastening and its further operation .

The essence of the proposed repair kit for anchor rail fastening ARS is as follows.

During operation of the APC anchor rail fastening when straightening the track with track machines or in the event of an accident involving the rolling wheels off the rails, kinks of the heads or brackets of the APC anchors usually occur on one side of the rail thread.

Firstly, with single fractures of the heads or brackets of the anchors, it is impossible to install a terminal in the ARS fastening unit, which weakens the pressing force of the rail in the fastening unit by half, increases the dynamic effect of lateral forces on neighboring fastening nodes and reduces the reliability of the track design to resist longitudinal forces. The use of these repair kits allows you to restore the integrity of the track design almost in full.

Secondly, with continuous fractures of the heads of the anchors caused by the derailment of the wheels, the replacement of reinforced concrete sleepers is required to open the movement of trains. The use of these repair kits allows you to quickly restore the movement of trains along the railway track with an anchor rail fastening ARS with acceptable speeds.

The ARS anchor rail fastening repair kit can be installed with either single or continuous replacement of damaged anchors.

A method of repairing an APC anchor rail fastening with a broken or damaged frame type anchor head is as follows:

- the damaged node anchor rail fastening ARS dismantle,

- the damaged anchor head of the frame-arch type is removed from the reinforced concrete sleepers,

- hang out the rail,

- install the repair kit by passing (threading) the undamaged head of the frame-arch type anchor through a rectangular hole located on the second end part of the rail lining,

- drill through a round hole located on the first end of the rail lining, the hole for the anchor bolt in a reinforced concrete sleepers,

- screw the anchor bolt through the holes in the lining and the reinforced concrete sleepers rail lining to the sleepers,

- stack on the repair kit rail mounting,

- lower the rail,

- make further installation of the anchor rail fastening ARS in the usual way.

Thus, the APC anchor rail fastening repaired by the claimed repair kit and method will be in the form of a standard APC anchor rail fastening (however, its design will differ due to the special design of the claimed repair kit), which currently has the following design: frame anchor arched type with downward facing shanks, monolithic in reinforced concrete sleepers. Each anchor head has two brackets spaced along the rail. Two spring bar terminals with an anti-corrosion coating are worn on the anchor heads. The rectilinear rail part of the terminal presses the rail to the railroad tie through an insulator made in the form of a three-shelf element with a protrusion placed between the brackets of the anchor head. The insulator has an upper vertical shelf that prevents touching the straight-line rail part of the anchor head terminal. The straight ends (whiskers) of the terminals have limbs and are placed in the anchor heads between the brackets. The under-rail laying is located between the anchor heads on the under-rail platform of the reinforced concrete sleepers. The monoregulator provides the necessary amount of pressing the rail with the spring terminal to the sleeper by moving the monoregulator from the neutral position to the first, second, third or fourth position.

Claims (5)

1. A repair kit for an APC anchor rail fastener, including a rail lining, an anchor bolt and an under rail gasket, the rail lining comprising a first end part, a central part and a second end part, with a head similar to a head of an arch-frame anchor on the first end part type, consisting of two brackets, and a hole intended for installation of an anchor bolt, while a rail rail is installed on the central part, and a hole intended on the second end part Designed for passing through it an intact anchor head. 2. The kit according to claim 1, in which the surface of the Central part of the rail lining is located below the surfaces of the first and second end parts due to the presence of bevels on both sides of the Central part. 3. The kit according to claim 1, in which the hole located on the second end part has a rectangular shape, while the area of this hole is a larger area of the hole located on the first end part and having a round shape. 4. A method of repairing an APC anchor rail fastening with a broken or damaged frame anchor head, which consists in dismantling the damaged anchor rail fastening assembly, removing the damaged arch-arch anchor head from reinforced concrete sleepers, hanging the rail, installing the repair kit according to claim 1, lowering rail and completion of installation of the APC anchor rail fastening. 5. The method according to p. 4, in which the installation of the repair kit according to p. 1 includes passing the undamaged head of the frame type anchor through the hole located on the second end of the rail lining, drilling through the hole located on the first end of the rail lining, the holes in reinforced concrete sleepers, screwing the rail lining to the sleepers with the anchor bolt and laying the rail rail.

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