CN110863393A

CN110863393A - Track circuit insulation system

Info

Publication number: CN110863393A
Application number: CN201911323805.9A
Authority: CN
Inventors: 王之冰; 魏康军; 彭旭涛; 刘立隆
Original assignee: SHANGHAI HIGH SPEED RAIL ELECTRICAL TECHNOLOGY Co Ltd
Current assignee: SHANGHAI HIGH SPEED RAIL ELECTRICAL TECHNOLOGY Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-03-06

Abstract

A track circuit insulation system relates to the technical field of railways, and comprises sleepers, stock rails, switch rails, angle irons, switch machines, joint irons and tip irons; the switch machine is fixedly connected with the stock rail by utilizing angle iron, an action rod of the switch machine is connected with the switch rail through joint iron, and a representation rod of the switch machine is connected with the switch rail through the switch iron; the angle iron, the joint iron and the tip iron are made of polyurethane materials. The switch machine drives the point rail to move relative to the stock rail to complete the rail change operation. The angle iron, the joint iron and the tip iron are all made of polyurethane materials, compared with the mode that iron materials and an insulation structure are adopted in the prior art, the insulation reliability is higher, the service life is longer, and potential safety hazards caused by insulation problems can be fundamentally eliminated.

Description

Track circuit insulation system

Technical Field

The invention relates to the technical field of railways, in particular to a track circuit insulation system.

Background

In the railway field, under the requirement of electrification, the railway track system needs insulation treatment, particularly the position of a turnout, and the requirement on the insulation performance of a connection part is higher due to the complex structure and the frequent movement. In the prior art, the part of the turnout track with insulation requirements is generally internally provided with a nylon insulating sleeve or a base plate is arranged between two parts, and the base plate and the nylon sleeve are easily abraded to cause insulation failure, generate signal faults and influence the driving safety.

Therefore, a rail circuit insulation system with higher reliability and longer service life is lacked in the prior art.

Disclosure of Invention

The invention solves the technical problem of how to improve the insulation performance of the railway at the position of the turnout in the prior art.

To solve the above technical problem, an embodiment of the present invention provides a rail circuit insulation system, including a sleeper, a stock rail, a point rail, angle iron, a switch machine, joint iron, and point iron; the switch machine is fixedly connected with the stock rail by utilizing angle iron, an action rod of the switch machine is connected with the switch rail through joint iron, and a representation rod of the switch machine is connected with the switch rail through the switch iron; the angle iron, the joint iron and the tip iron are provided with polyurethane materials.

In the above technical solution, further, the switch machine is installed on a fixed frame; the fixing frame is fixedly connected with the stock rail by utilizing angle iron; the angle iron is a first L-shaped workpiece made of polyurethane composite materials, one side of the first L-shaped workpiece is fixedly connected with the stock rail through a bolt, and the other side of the first L-shaped workpiece is fixedly connected with the fixing frame through a bolt.

In the above technical solution, further, the joint iron includes a first duckbill and two second L-shaped workpieces; the action rod is fixedly connected with the first duckbill, the first ends of the two second L-shaped workpieces are aligned and arranged in the first duckbill, and the second ends of the second L-shaped workpieces are fixedly connected with the switch rail; the first duckbill is made of metal materials, and the second L-shaped workpiece is made of polyurethane materials.

In the technical scheme, furthermore, the first end of the second L-shaped workpiece is aligned and accommodated in the first duckbill and is fixed by using a pin; the first ends of the two second L-shaped workpieces are in interference fit with the first duckbills.

In the above technical solution, further, the tip iron includes a second duckbill and a third L-shaped workpiece; the indicating rod is fixedly connected with the second duckbill, one end of the third L-shaped workpiece is fixed in the second duckbill, and the other end of the third L-shaped workpiece is fixedly connected with the switch rail; the second duckbill is made of metal materials, and the third L-shaped workpiece is made of polyurethane materials.

In the above technical solution, further, one end of the third L-shaped workpiece is accommodated in the second duckbill and fixed by a pin; one end of the third L-shaped workpiece is in interference fit with the second duckbill.

In the above technical solution, further, the rail gauge rod is installed between the stock rails, and the rail gauge rod is made of polyurethane material.

In the above technical solution, further, the stock rail includes a plurality of sections, two adjacent sections are connected by a fishplate, and the fishplate is made of polyurethane material.

In the above technical solution, further, the sleeper includes a sleeper main body, at least two rail fixing plates, and a tie plate; the sleeper main body comprises a frame and a filling structure, and the filling structure is filled in the frame; the rail fixing plates are fixed on the top surface of the sleeper main body, and the two rail fixing plates are positioned at the two ends of the sleeper main body; the sleeper main body is made of polyurethane material, and the filling structure is made of polyurethane foam; the tie plate is installed at the bottom of the sleeper body.

In the above technical solution, further, the rail fixing device further includes a heating device, the heating device is fixed in the frame by using the filling structure, and the heating device is located in an area opposite to the rail fixing plate.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

the embodiment of the invention provides a track circuit insulation system.A point switch drives a point rail to move relative to a stock rail so as to complete rail change operation. The angle iron, the joint iron and the tip iron are all made of polyurethane materials, compared with the mode that iron materials and an insulation structure are adopted in the prior art, the insulation reliability is higher, the service life is longer, and potential safety hazards caused by insulation problems can be fundamentally eliminated.

Drawings

FIG. 1 is a schematic illustration of a track circuit insulation system according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 1 at the angle iron;

FIG. 4 is an enlarged view of a portion of FIG. 1 at the joint iron;

FIG. 5 is an enlarged view of a portion of FIG. 1 at the tip iron;

fig. 6 is a structural view of a sleeper according to an embodiment of the present invention.

Reference numerals:

11-a sleeper; 12-stock rail; 13-a point rail; 14-a switch machine; 15-a fixed frame; 16-angle iron; 18-an action lever; 19-joint iron; 20-represents a rod; 21-tip iron; 22-gage rod; 23-fishplates; 24-a first duckbill; 25-a second L-shaped workpiece; 26-a second duckbill; 27-a third L-shaped workpiece; 28-tie body; 29-rail fastening plate; 30-a backing plate; 31-heating means.

Detailed Description

As understood by those skilled in the art, as mentioned in the background, the insulation structure of the track at the position of the turnout is prone to wear, which is prone to cause insulation failure, signal failure and influence on driving safety.

To solve the above problems, an embodiment of the present invention provides a rail circuit insulation system, including a sleeper, a stock rail, a point rail, angle iron, a switch machine, joint iron, and point iron; the switch machine is fixedly connected with the stock rail by utilizing angle iron, an action rod of the switch machine is connected with the switch rail through joint iron, and a representation rod of the switch machine is connected with the switch rail through the switch iron; the angle iron, the joint iron and the tip iron are provided with polyurethane materials.

The switch machine drives the point rail to move relative to the stock rail to complete the rail change operation. The angle iron, the joint iron and the tip iron are all made of polyurethane materials, compared with the mode that iron materials and an insulation structure are adopted in the prior art, the insulation reliability is higher, the service life is longer, and potential safety hazards caused by insulation problems can be fundamentally eliminated.

Furthermore, the fishplate and the gauge rod of the embodiment of the invention are made of polyurethane materials, so that the fishplate and the gauge rod have better insulating property.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

FIG. 1 is a schematic illustration of a track circuit insulation system according to an embodiment of the present invention; fig. 2 is a partially enlarged view of fig. 1.

As shown in fig. 1 and 2, the embodiment of the present invention provides a track circuit insulation system including sleepers 11, stock rails 12, switch rails 13, a switch machine 14, a fixed frame 15, angle irons 16, gauge bars 22, joint irons 19, tip irons 21, gauge bars 22, and fishplates 23.

The stock rail 12 and the switch rail 13 are both mounted on the sleeper 11, the switch rail 13 is located on the inner side of the stock rail 12, and the switch rail 13 moves relative to the stock rail 12 under the driving of the switch machine 14 to complete the rail changing action.

The stock rails 12 are of a segmented structure, two adjacent stock rails 12 are connected by a fishplate 23, and the fishplate 23 is made of polyurethane material. The gauge bars 22 are mounted between the stock rails 12, the gauge bars 22 being of polyurethane material.

The switch machine 14 is arranged on a fixed frame 15, and the fixed frame 15 is fixedly connected with the stock rail 12 by utilizing an angle iron 16; the switch machine 14 comprises an actuating rod 18 and an indicator rod, the actuating rod 18 of the switch machine 14 being connected to the point rail 13 by means of a joint iron 19, and the indicator rod 20 of said switch machine 14 being connected to the point rail 13 by means of a point iron 21.

Fig. 3 is an enlarged view of a portion of fig. 1 at the angle iron.

As shown in fig. 3, the angle iron 16 is a first L-shaped workpiece made of a polyurethane composite material, one side of the first L-shaped workpiece is fixedly connected to the stock rail 12 by a bolt, and the other side is fixedly connected to the fixing frame 15 by a bolt.

Fig. 4 is an enlarged view of a portion of fig. 1 at the joint iron.

As shown in fig. 4, the joint iron 19 includes a first duckbill 24 and two second L-shaped pieces 25; the first ends of two second L shape work pieces 25 align, and first duckbilled 24 cover realizes interference fit at the first end of two second L shape work pieces 25, and the pin passes the first end of first duckbilled 24 and two second L shape work pieces 25, links together the three, and first duckbilled 24 and two second L shape work pieces 25 are the T shape.

The actuating rod 18 is fixedly connected to the fixing lug of the first duckbill 24 by means of a screw arrangement, and the second end of the second L-shaped workpiece 25 is fixedly connected to the point rail 13 by means of a screw.

The first duckbill 24 is stainless steel and the second L-shaped workpiece 25 is polyurethane.

Fig. 5 is an enlarged view of a portion of fig. 1 at the tip iron.

As shown in fig. 5, the tip iron 21 includes a second duckbill 26 and a third L-shaped piece 27; the indication rod 20 is fixedly connected with a second duckbill 26 through a bolt, and the second duckbill 26 is sleeved at one end of a third L-shaped workpiece 27 to realize interference fit and is fixed by using and utilizing a pin; the other end of the third L-shaped piece 27 is fixedly connected to the point rail 13 by means of a bolt arrangement.

The second duckbill 26 is made of stainless steel and the third L-shaped workpiece 27 is made of polyurethane.

In the prior art, the angle iron 16, the joint iron 19 and the tip iron 21 are all of a unitary structure, either a unitary steel structure or an outer insulation layer of a steel product. The joint iron 19 and the tip iron 21 provided by the invention are both composed of two parts, the duckbill made of metal is more favorable for being connected with the indication rod 20 and the action rod 18, and the L-shaped workpiece made of insulating material is connected with the switch rail 13 or the stock rail 12, so that good insulating property can be ensured.

Moreover, the angle iron 16, the second L-shaped workpiece 25 and the third L-shaped workpiece 27 are all made of polyurethane, so that the insulation reliability is higher, the service life is longer, and potential safety hazards caused by insulation problems can be fundamentally eliminated.

As shown in fig. 6, the tie 11 includes a tie body 28, at least two rail anchor plates 29, and tie plates 30.

The tie body 28 includes a frame including an outer frame and an inner support, and a packing structure including a partial packing member and an edge packing member.

The frame is first rectangular pipe, and the material is glass fiber/polyurethane combined material, has fine hardness, can keep sleeper 11's shape. The bottom of the top surface and the top of the bottom surface of the first rectangular pipe are respectively provided with a groove for fixing the inner support, and the groove is positioned on the central line of the long edge of the first rectangular pipe.

The inner support is a second rectangular pipe made of glass fiber/polyurethane composite materials, the second rectangular pipe is fixed in the groove of the first rectangular pipe, the long edge of the second rectangular pipe is perpendicular to the long edge of the first rectangular pipe, the middle of the first rectangular pipe is fully supported, and stability of the main structure of the sleeper rail is guaranteed.

A central filler member is located within the cavity of the inner support for connection to the rail anchor plate 29. In some embodiments, a threaded sleeve is provided within the centerfill member for connection to the rail anchor plate 29. In some embodiments, the mid-fill is a polyurethane foam and the threaded sleeve is a stainless steel material.

The edge filler is located in the space between the outside of the inner support and the outer frame. In some embodiments, the edge filler is a polyurethane foam.

The rail anchor plates 29 are fixed to the top surface of the tie body 28, and the two rail anchor plates 29 are located at both ends of the tie body 28. The rail anchor plate 29 is steel.

The tie plate 30 is mounted to the bottom of the tie body 28, and the tie plate 30 is a polyurethane elastomer.

In some embodiments, the sleeper 11 further comprises a heating device 31, said heating device 31 being fixed within the frame by means of a filling structure, said heating device 31 being located in the region opposite the rail fixing plate 29. Specifically, the heating device 31 may be a carbon fiber heating film.

In the icy and snowy weather, the heating device 31 operates to prevent the switch rail 13 from being frozen, so that the switch can normally operate.

Moreover, the heating device 31 is arranged in the frame by utilizing the filling structure, so that the heating device 31 is prevented from being exposed in the air, is not easy to be corroded by rain water, is not easy to be damaged by sand wind or stone particles, has longer service life and is more reliable in work. In addition, the heating device 31 is disposed only in the region opposite to the rail fastening plate 29, so that heat can be efficiently transferred to the rail fastening plate 29, and waste of power is avoided.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A track circuit insulation system comprising a sleeper, stock rails, point rails, angle iron, switch machines, joint iron and point iron; the switch machine is fixedly connected with the stock rail by utilizing angle iron, an action rod of the switch machine is connected with the switch rail through joint iron, and a representation rod of the switch machine is connected with the switch rail through the switch iron; the angle iron, the joint iron and the tip iron are provided with polyurethane materials.

2. The track circuit insulation system of claim 1 wherein said switch machine is mounted on a fixed frame; the fixing frame is fixedly connected with the stock rail by utilizing angle iron; the angle iron is a first L-shaped workpiece made of polyurethane composite materials, one side of the first L-shaped workpiece is fixedly connected with the stock rail through a bolt, and the other side of the first L-shaped workpiece is fixedly connected with the fixing frame through a bolt.

3. The track circuit insulation system of claim 1 wherein the joint iron comprises a first duckbill and two second L-shaped pieces; the action rod is fixedly connected with the first duckbill, the first ends of the two second L-shaped workpieces are aligned and arranged in the first duckbill, and the second ends of the second L-shaped workpieces are fixedly connected with the switch rail; the first duckbill is made of metal materials, and the second L-shaped workpiece is made of polyurethane materials.

4. The track circuit insulation system of claim 3 wherein the first end of the second L-shaped workpiece is received in alignment within the first duckbill and secured with the pin; the first ends of the two second L-shaped workpieces are in interference fit with the first duckbills.

5. The track circuit insulation system of claim 1 wherein the tip iron comprises a second duckbill and a third L-shaped piece; the indicating rod is fixedly connected with the second duckbill, one end of the third L-shaped workpiece is fixed in the second duckbill, and the other end of the third L-shaped workpiece is fixedly connected with the switch rail; the second duckbill is made of metal materials, and the third L-shaped workpiece is made of polyurethane materials.

6. The track circuit insulation system of claim 5 wherein one end of the third L-shaped workpiece is received within the second duckbill and secured with a pin; one end of the third L-shaped workpiece is in interference fit with the second duckbill.

7. The track circuit insulation system of claim 1, further comprising a gage rod mounted between the stock rails, the gage rod being a polyurethane material.

8. The track circuit insulation system of claim 1 wherein the stock rail comprises a plurality of sections, adjacent sections being connected by a fishplate, the fishplate being a polyurethane material.

9. The track circuit insulation system of claim 1 wherein the tie comprises a tie body, at least two rail anchor plates and a tie plate; the sleeper main body comprises a frame and a filling structure, and the filling structure is filled in the frame; the rail fixing plates are fixed on the top surface of the sleeper main body, and the two rail fixing plates are positioned at the two ends of the sleeper main body; the sleeper main body is made of polyurethane material, and the filling structure is made of polyurethane foam; the tie plate is installed at the bottom of the sleeper body.

10. The track circuit insulation system of claim 9 further comprising a heating device secured within the frame with the filler structure, the heating device being located in an area opposite the rail anchor plate.