RU2305147C1 - Rail brace anchor - Google Patents

Abstract

FIELD: rail road construction, particularly for continuous welded rail track laying.

SUBSTANCE: anchor comprises stem to be embedded in sleeper and upper part limiting side rail displacement and adapted for resilient clamp connection. The anchor is made of scored and bent rolled material, namely of plate having side cut-out and bent parts projecting over sleeper surface. Central part of the plate remaining after plate scoring defines the stem. One or two orifices or depressions are made in upper plate part. Wall created in upper plate orifice part or depression and brought into contact with clamp during clamp fixation is inclined in direction of clamp advancing over rail during clamp mounting operation.

EFFECT: decreased metal consumption and costs of anchor production due to possibility of anchor forming of plate in cold stamping operation.

7 cl, 7 dwg

Description

The invention relates to the construction of railways and can be used when equipped with fasteners continuous joint path.

Known anchor rail fasteners / 1 / containing a shank, embedded in the sleepers, and the upper part, limiting the lateral movement of the rail and adapted for attaching an elastic terminal. These signs coincide with the essential features of the claimed invention. The anchor is molded, its upper part, adapted for attaching an elastic terminal, is made with two inclined grooves on the sides of the anchor.

The disadvantage of the anchor of this bond is the large material and energy costs for its manufacture. The complex design of the anchor with grooves and protrusions does not allow it to be made from a simple workpiece by cold stamping. Such an anchor can only be made by precision casting, which is several times more expensive than cold stamping, and worsens the environment.

Known anchor rail fasteners / 2 / containing a shank, embedded in the sleepers, and the upper part, limiting the lateral movement of the rail and adapted for attaching an elastic terminal. Anchor made of rolled metal. These signs coincide with the essential features of the claimed invention. The anchor is made of a flange profile, for example a rail, an I-beam, two channels, a T-shaped profile.

The disadvantage of the anchor of this bond is the high consumption of metal, since it is impossible to select a profile from the existing product range that matches the size and configuration of the size and shape of the anchor without finalizing the profile with a significant portion of it being sent to metal waste. In addition, the fastening of the flange profile in the stamp during its deformation is difficult due to its complex shape.

The closest in technical essence to the claimed one is a rail fastening anchor / 3 / containing a shank that is embedded in a railroad tie and an upper part restricting lateral movement of the rail and adapted for fastening an elastic terminal, and made of partially notched and curved rolled products. These signs coincide with the essential features of the claimed invention. A rental is a corner, from the middle part of one shelf of which a shank is formed by notching and folding.

The disadvantage of the anchor of this fastening is the large consumption of metal, since corners with a large difference in the length of the shelves are absent in the product mix and part of the shortened trim of the shelf serving as the wall of the anchor is sent to waste. In addition, fixing the corner in the stamp during its deformation is difficult due to its complex shape.

The basis of the invention is the task in the anchor rail fastening by means of a new form of its execution from the plate to ensure a reduction in metal consumption and the cost of processing rolled products.

To solve this problem, a rail fastening anchor containing a shank embedded in a tie and an upper part restricting lateral movement of the rail and adapted for attaching an elastic terminal is made of partially notched and curved rolled products. In contrast to the prototype, the plate is rolled, and the lateral notched and curved parts of the plate are partially or completely protruding above the surface of the sleepers, and the middle part of the plate remaining after the incision serves as a shank. In the upper part of the plate, one or two holes or recesses are made. The wall, made in the upper part of the hole or recess, in contact with the terminal when it is fixed, is inclined to the direction of the mounting movement of the terminal on the rail. The ends of the incised and bent parts of the plate protruding above the sleepers are made in the shape of the supporting part of the terminal, for example, in the form of a curved depression. The upper part of the plate is made curved in the direction of mounting movement of the terminal on the rail. The thickness of the plate is 0.15-0.3 of the height of the upper part of the anchor. The middle part of the plate remaining after the incision is made curved.

The foregoing features of the claimed invention provide a technical result, which consists in reducing the consumption of metal and costs in the manufacture of the anchor due to the execution of the anchor from the plate by cold stamping.

The execution of the anchor from the plate, moreover, the execution of the lateral notched and curved parts of the plate partially or completely projecting above the surface of the sleepers, and the middle part of the plate remaining after cutting, as a shank, makes it possible to reduce the consumption of metal and simplify the technology of manufacturing the anchor through the use of a strip cut out by industry on measuring plates of the required length, from which the wall, shank and terminal support are then formed by cold stamping without waste.

The execution in the upper part of the plate of one or two holes or recesses allows you to provide loading of the terminal sections of the terminal with the necessary force when moving them in the indicated holes or recesses.

The execution of the wall in the upper part of the hole of the anchor in contact with the terminal when it is fastened, inclined to the direction of the mounting movement of the terminal onto the rail, makes it possible to load the terminal with a gradual increase in force as the ends of the terminal come into contact with the inclined wall of the hole and rotate during the terminal is fixed.

The execution of the notched and curved ends of the plate protruding above the sleeper in the form of the supporting part of the terminal, for example, in the form of a curved recess, allows the terminal to be reliably secured from possible slipping from the rail sole under the action of cyclic loads from the train wheels.

The execution of the upper part of the plate bent in the direction of the mounting movement of the terminal on the rail makes it possible to increase the travel of the terminal under load during its movement on the rail in the fastening structure with the terminal fixed at the end sections and at the same time reduce the effort on the lever tool that moves the terminal.

The performance of the plate thickness equal to 0.15-0.3 the height of the upper part of the anchor allows you to provide the optimal ratio of the strength of the anchor and the metal flow to it.

If the plate thickness is less than 0.15 of the height of the upper part of the anchor, then the strength of the anchor will be insufficient. If the thickness of the plate is more than 0.3 of the height of the upper part of the anchor, then the metal consumption will be irrationally increased.

The execution of the middle part of the plate remaining after the incision, curved makes it possible to increase the force of resistance of the anchor pulling out of the sleepers.

The invention is illustrated by drawings, which depict:

figure 1 - General view of the anchor in the rail fastening;

figure 2 is a top view of figure 1;

figure 3 is a variant of the anchor with lateral notched parts of the plate, partially protruding above the surface of the sleepers;

figure 4 is a top view of figure 3;

figure 5 is a right view of figure 3;

figure 6 is a variant of the anchor with lateral notched parts of the plate, fully protruding above the surface of the sleepers;

7 is a variant of the anchor with a curved upper part of the plate in rail fastening.

The rail fastening anchor 1 comprises a shank 2 embedded in the tie 3 and an upper part 4, limiting lateral movement of the rail 5 and adapted for fastening the elastic terminal 6. The anchor is made of a partially notched and curved plate 7. Side notched and curved parts 8 of the plate, which made partially protruding above the surface 9 of the sleepers 3, have curved sections walled in the sleepers adjacent to the shank. When performing lateral incised and curved parts 8 of the plate completely protruding above the surface 9 of the sleepers 3, they have a flat shape. The middle part of the plate remaining after the notch serves as a shank 2. In the upper part 4 of the plate, a hole 10 is made in which both ends 11 of the terminal are located. Instead of an opening to accommodate the ends of the terminal in the plate, a recess may be provided. There can be two holes or recesses in the upper part of the plate, separately for each end of the terminal. The wall 12, made in the upper part of the hole 10 or the recess in the anchor, in contact with the terminal 6 when it is secured, is inclined to the direction of the mounting movement of the terminal on the rail. The terminal sections 11 that are moved in the direction of sliding on the rail along the wall 12 change the angle of inclination, and the effort of pressing the large terminal loop on the rail gradually increases. The ends of the notched and bent portion 8 of the plate protruding above the rail tie are made in the shape of the terminal portion of the terminal, for example, in the form of a curved recess 13. These recesses allow the terminal to be fixed when it is fixed to the rail in a certain position and prevent the terminal from sliding off the rail under lateral loads from it side.

An embodiment of a rail fastening anchor is possible, in which the upper part 4 of the plate is curved in the direction of the mounting movement of the terminal onto the rail. Then the ends 11 of the terminal in the process of sliding onto the rail move along the lower surface of the curved part 4 of the plate. From sliding from the anchor, the terminal is held by the inclined part of its end sections in contact with the wall 12 in the upper part of the hole 10.

The thickness of the plate 7 is 0.15-0.3 the height of the upper part of the anchor. For the bonding shown, the optimum ratio of the plate thickness of 12 mm to the height of the upper part of the anchor of 55 mm is 0.22.

The middle part of the plate remaining after the notch is made curved, for example, with the formation of a loop 14 at the end of the shank 2 from the wider one at the end of the plate formed after the notch. Out of the plane of the plate above the anchor loop 14, after it has been bricked up, a high layer of concrete is formed which prevents the anchor from being pulled out.

When mounting a fastener on a concrete railroad tie 3 with anchors 1 embedded in it, an insulating spacer 15 is placed between them. A rail 5 is installed on the spacer, and insulating inserts 16 are inserted between the rail sole and the upper parts of the 4 anchors, which transmit lateral forces from the rail to the anchor. On the insert 16, a large loop fits terminal 6, which is pushed onto the rail by a lever tool. The terminal end portions 11 of the terminal are slid into the hole 10 of the anchor, and the supporting portions of the terminal are included in the recesses 13 of the anchor.

The manufacture of an anchor from a plate by cold stamping reduces metal consumption by 15% compared with the technology for manufacturing an anchor from a standard angle with a length of one shelf 125 mm and another 80 mm, since a short shelf has to be cut to a length of 50 mm. In addition, the cost of stamping an anchor from a plate having a simpler shape than a corner is reduced, since the stamp and the number of technological operations are simplified.

Information sources

1. Patent of Russia 2125626, cl. ЕВВ 9/30.

2. Patent of Russia 2252286, cl. ЕВВ 9/30.

3. Patent of Russia 2228979, cl. ЕВВ 9/30.

Claims (7)

1. An rail fastening anchor comprising a shank embedded in a railroad tie and an upper part restricting lateral movement of the rail and adapted for fastening an elastic terminal and made of partially notched and curved rolled products, characterized in that the rolled sheet is a plate, the side notched and curved parts of the plate are made partially or completely protruding above the surface of the sleepers, and the middle part of the plate remaining after the notch serves as a shank. 2. Anchor according to claim 1, characterized in that one or two holes or recesses are made in the upper part of the plate. 3. An anchor according to claim 2, characterized in that the wall, made in the upper part of the hole or recess, in contact with the elastic terminal when it is secured, is inclined to the direction of mounting movement of the elastic terminal onto the rail. 4. Anchor according to claim 1, characterized in that the ends of the notched and curved parts of the plate protruding above the railroad tie are made in the form of the supporting part of the elastic terminal, for example, in the form of a curved recess. 5. Anchor according to claim 1, characterized in that the upper part of the plate is made curved in the direction of mounting movement of the elastic terminal onto the rail. 6. Anchor according to claim 1, characterized in that the plate thickness is 0.15-0.3 the height of the upper part of the anchor. 7. Anchor according to claim 1, characterized in that the middle part of the plate remaining after the incision is made curved.

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