CN210946306U

CN210946306U - Integral switch tie structure of protection electric affairs

Info

Publication number: CN210946306U
Application number: CN201920734954.3U
Authority: CN
Inventors: 王阿利; 张莉; 雷洁; 孙立彬; 王忠伟
Original assignee: China Railway Baoji Bridge Group Co Ltd; China Railway Hi Tech Industry Corp Ltd
Current assignee: China Railway Baoji Bridge Group Co Ltd; China Railway Hi Tech Industry Corp Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-07-07
Anticipated expiration: 2029-05-22

Abstract

The utility model relates to an integral switch tie structure with electric affairs safeguard function, by electric affairs switch tie, rubber backing plate, the backing plate of increaseing, protector, spring washer, switch tie bolt is constituteed, electric affairs switch tie has two central lines, one is switch tie central line before the traction point, another is switch tie central line behind the traction point, space between the front portion of integral electric affairs switch tie and the rear portion is electric affairs member installation region, switch tie central line and traction point back switch tie central line pre-buried switch slide bed board respectively before the traction point, the sleeve pipe of dust keeper installation, the dust keeper both sides adopt switch tie bolt and sleeve pipe to connect soon. The advantages are that: firstly, the integral electric switch tie can provide better stability for switch conversion; secondly, set up protector on the switch tie of electric affairs, for the electric affairs conversion member provides a clean and tidy, spacious, warm operational environment, avoid foreign matter to block up and ice and snow under the high and cold climate environment seals the conversion member, ensure that electric affairs conversion system normally works, improve the fail safe nature of switch conversion.

Description

Integral switch tie structure of protection electric affairs

Technical Field

The utility model relates to an integral switch tie structure with electric affairs safeguard function belongs to switch tie field of making.

Background

The turnout is important basic equipment for railway construction and is an integrated system of power and electricity integration. The speed-up turnout in China adopts a transfer conversion mode, a connecting rod is not arranged between a curved switch rail and a straight switch rail, and a steel turnout sleeper is a special turnout sleeper and is mainly used at the traction point of the turnout, a turnout electric switch rod piece can be arranged in the turnout sleeper, the maintenance operation of a large machine is facilitated, the speed-up turnout solves the problem of incompatibility of various workers and electricity, and the turnout conversion equipment in China is improved to a new level at that time. However, due to the special structural form and stress mode of the steel switch tie, the rigidity of the steel switch tie is not matched with that of the adjacent concrete switch tie, so that a switch part is in a bad state of a hanging plate and a hidden hanging plate for a long time, the abrasion of a fastener is serious, the track gauge is enlarged, the track direction is bad, and the longitudinal rigidity of the track is not smooth. Meanwhile, as time goes on, the steel sleeper gradually oxidizes and rusts, so that reliable supporting conditions cannot be provided for the upper component and the internal conversion equipment of the steel sleeper, and troubles are brought to daily maintenance of power and electricity. In the research of high-speed turnouts, steel turnout sleepers are omitted at electric traction points.

The high-speed turnout of China adopts concrete turnout sleepers before and after a traction point, a rod piece of conversion equipment is arranged between the two concrete turnout sleepers at the traction point, the concrete turnout sleeper has high rigidity and high friction coefficient with railway ballast, a stable support and conversion platform is provided for a switch rail, the stability and smoothness of the turnout are guaranteed, and the defect of the steel turnout sleeper for accelerating the turnout is avoided. The concrete switch tie is adopted at the electric service traction point to improve the power and electricity integration level of the turnout by one step, but on one hand, the area where the conversion rod is arranged between the two electric service switch ties is inconvenient for the tamping drum of a large-scale road maintenance machine, in the past, the ballast at the traction point is intentionally hardened and has different rigidity from the ballast bed in other areas of the turnout area, and the smoothness of the turnout and the riding comfort of passengers are influenced; on the other hand, a rod piece of the electric switching equipment is exposed between the two switch sleepers, is easy to be stepped and deformed by maintenance personnel, is easy to be filled by foreign matters such as garbage, ice, snow, sand and the like, influences the normal switching of the switch, and has potential safety hazards, particularly in cold areas with low temperature.

Disclosure of Invention

The design purpose is as follows: the defects in the prior art are avoided, and the integral switch tie structure capable of fundamentally solving the problem that the electric service conversion equipment rod is exposed between two switch ties and protecting the electric service is designed.

The design scheme is as follows: in order to achieve the above design objectives. In the structural design, aiming at the safety problem that the electric service switching mechanism at the traction point is blocked due to exposure, the invention develops an integral switch tie with an electric service protection function, and achieves the following aims: firstly, merge two electric affairs concrete switch sleepers before the conventional traction point, back into a special concrete switch sleeper of integral electric affairs of taking the bottom structure to increase the rigidity of switch sleeper self and with the frictional force of railway ballast, can get rid of the railway ballast outside the switch sleeper in the traction point department simultaneously, make the railway ballast of traction point department daily need not to be tamped, ensured the stability of switch conversion. Secondly, set up protector on integral electric affair concrete switch sleeper upper portion, provide a clean and tidy, spacious, warm operational environment for the electric affair conversion member, avoid foreign matter to block up and ice and snow under the high and cold climate environment seals the conversion member, ensure that the electric affair conversion system normally works, improve the fail safe nature of switch.

The electric switch tie has the main function that an electric switch mechanism is arranged at the end head, and electric installation conditions are reserved at the two ends of the electric switch tie in order to meet the requirements of different lines of the electric switch machine arranged on a straight strand or a side strand; and slide plate is installed at both ends near the electric switch machine to support the switch rail and buckle the stock rail. In order to increase the rigidity of the switch tie and the friction force between the switch tie and a railway ballast, the front and the rear electric service concrete switch ties of a conventional traction point are combined into an integral electric service special concrete switch tie with a bottom structure, and the railway ballast at the traction point can be removed from the switch tie by the bottom structure, so that the railway ballast at the traction point is not required to be tamped daily, and the stability of the switch conversion is ensured. Meanwhile, the upper part of the middle section of the integral electric switch tie is provided with an electric switch protection device for protecting the conversion rod piece, and the protection device is connected and fastened with the switch tie through the switch tie embedded sleeve. The working principle diagram is shown in detail in figures 1 and 2.

In order to install a switch machine, a slide plate and a protective device on an integral electric switch tie, sleeves for the switch machine and the slide plate are respectively embedded at two ends of the switch tie according to the conventional practice of China, sleeves for installing the protective device are embedded in the middle section of the switch tie, prestressed steel wires, spiral ribs, longitudinal steel bars, stirrups and the like are arranged in the concrete switch tie, and the sleeves for the protective device and the sleeves for the slide plate are embedded in the same direction of the length of the switch tie for the convenience of switch tie design and construction. In addition, in order to reduce the diameter specification of the switch tie bolt, the embedded sleeve is consistent with the specification of the slide plate.

The slide plate is respectively arranged in front of and behind the traction point of the electric service integrated switch tie, and the installation hole positions of the slide plate on the side strand are different due to the line type change of the switch, so that the arrangement principles of the electric service, the slide plate and the sleeve for installing the protective device are the same. The positions of the sleeves for electric installation and the sleeves for the slide plate on the length center line of the switch tie are designed conventionally, in order to ensure that the concrete switch tie sleeves have enough strength, the distance between the sleeves is not too close, the distance between the edge of the slide plate and the bolt hole of the adjacent switch tie is concentrated at 35-54 mm, the distance between the edge of the protection device plate and the switch tie hole is designed at 50mm, the distance between the protection sleeve and the sleeve of the adjacent slide plate is designed at 150mm, and the gap between the slide plate and the protection device can be ensured at 46-65 mm.

The technical scheme is as follows: the integral switch tie structure for protecting electric service is formed from electric service switch tie, rubber base plate, height-regulating base plate, protecting device, spring washer and switch tie bolt, and the electric service switch tie possesses two central lines, one is the central line of switch tie before traction point and another is the central line of switch tie after traction point, and the space between front portion and rear portion of integral electric service switch tie is electric service bar mounting zone, and the central line of switch tie before traction point and central line of switch tie after traction point are respectively pre-embedded with switch slide plate and sleeve pipe mounted with dust-proofing device, and two sides of dust-proofing device are screw-connected with sleeve pipe by means of switch tie bolt.

Compared with the background technology, the utility model can provide better stability for the switch conversion; secondly, set up protector on the switch tie of electric affairs, for the electric affairs conversion member provides a clean and tidy, spacious, warm operational environment, avoid foreign matter to block up and ice and snow under the high and cold climate environment seals the conversion member, ensure that electric affairs conversion system normally works, improve the fail safe nature of switch.

Drawings

Fig. 1 is a schematic diagram of the working principle of an integrated switch tie for protecting electric service.

Fig. 2 is a schematic top view of fig. 1.

Fig. 3 is a schematic view of the assembly of the integrated switch tie components for protecting against electrical service.

Fig. 4 is a cross-sectional schematic view of an electricity-proof integrated switch tie.

Fig. 5 is a schematic diagram of the embedded position of the electricity-proof integrated switch tie bushing.

Fig. 6 is a front view of the guard.

Fig. 7 is a side view of the structure of fig. 6.

Fig. 8 is a schematic top view of the structure of fig. 6.

Fig. 9 is a schematic diagram of a rubber pad structure.

FIG. 10 is a schematic view of the rubber pad width design.

Fig. 11 is a schematic view of the thickness of the raised pad.

Detailed Description

Example 1: reference is made to fig. 1-4. An integral switch tie structure for protecting electric services is composed of an electric service switch tie 1, a rubber base plate 2, a heightening base plate 3, a protecting device 4, a spring washer 5 and a switch tie bolt 6, wherein the electric service switch tie 1 is provided with two center lines, one is a switch tie center line before a traction point, the other is a switch tie center line after the traction point, a space between the front part and the rear part of the integral electric service switch tie is an electric service rod piece mounting area 7, sleeve pipes for installing a switch slide bed plate and a dustproof device 4 are respectively embedded in the switch tie center line before the traction point and the switch tie center line after the traction point, and the two sides of the dustproof device are screwed with the sleeve pipes by the bolt 6.

The two sides of the dustproof device 4 are padded with heightening base plates 3, and the two sides of the dustproof device 4 are screwed with the sleeve through spring washers 5 and switch tie bolts 6 to fix the dustproof device 4.

The height of the electric switch tie is consistent with that of the common switch tie in the switch area. The height h of the electric service rod mounting area 7 is reserved according to the electric service rod. The top width of the switch tie in the switch area is the distance between the switch ties at the traction point plus the top width of the conventional switch tie, and the bottom width of the switch tie is the distance between the switch ties at the traction point plus the bottom width of the conventional switch tie. The guard was made from a 10mm thick embossed steel plate Q235. When the protection device is structurally designed, the protection area and the space are as large as possible, but after the curved switch rail 9 and the straight switch rail 10 are pulled to be in place, a gap of 50mm is formed between the end head of the protection device and the rail web of the switch rail in the horizontal direction, and a gap of 50mm is formed between the vertical direction and the upper surface of the switch rail limb. The electric integrated switch tie is respectively provided with a slide chair 8 in front of and behind the traction point. The electric integral switch tie is characterized in that two slide bed plates are respectively arranged on the straight strand and the side strand, and a switch machine is also respectively arranged on the outer side of each slide bed plate. Width of the rubber pad: one side of the central line of the hole is flush with the dustproof device, namely the distance between the hole and the plate edge is 50 mm; the other side ensures that the edge of the horizontal plane of the bottom plate of the dustproof device is 20mm away from the edge of the rubber gasket plate, so that a larger flexible supporting area is provided for the dustproof device.

Refer to fig. 5. In order to install a switch machine, a slide plate and a protective device on an integral electric switch tie, sleeves for the switch machine and the slide plate are respectively embedded at two ends of the switch tie according to the conventional practice of China, sleeves for installing the protective device are embedded in the middle section of the switch tie, prestressed steel wires, spiral ribs, longitudinal steel bars, stirrups and the like are arranged in the concrete switch tie, and the sleeves for the protective device and the sleeves for the slide plate are embedded in the same direction of the length of the switch tie for the convenience of switch tie design and construction. In addition, in order to reduce the diameter specification of the switch tie bolt, the embedded sleeve is consistent with the specification of the slide plate.

Reference is made to fig. 6-8. The protective device has the main functions of providing a clean and relatively warm working environment for the electric service switching mechanism, and avoiding the condition that the rod piece is treaded and deformed by maintenance personnel or the switching is influenced by the filling of foreign matters such as garbage, sand, ice and snow. The guard was made from a 10mm thick embossed steel plate Q235. When the protective device is structurally designed, the protective area and the protective space are as large as possible, but after the curved switch rail and the straight switch rail are pulled to be in place, a gap of 50mm is formed between the end head of the protective device and the rail web of the switch rail in the horizontal direction, and a gap of 50mm is formed between the vertical direction and the upper surface of the switch rail limb. The rod piece of the electric switching mechanism is arranged on the rail waist and sinks in a space area between the two switch sleepers, the protection device is positioned in the middle section of the switch sleepers and is far away from the tread of the wheel, the depth problem of a wheel rim groove does not need to be considered, and therefore the height of the protection device is safe when the protection device is designed to be 10mm lower than the top surface of the rail. Since only 4 switch tie bolts are used for each guard, the upper surface of the lower part of the guard is at the same height as the upper surface of the slide plate base plate in order to keep the length specification of the bolts and the switch tie bolts for the switch consistent.

The switch tie bolt M30 × L is used for keeping the specification of the bolt for connecting the protection device and the switch tie consistent with that of a switch fastener as much as possible in order to facilitate construction.

Reference is made to fig. 9-10. Rubber base plate: each switch tie is provided with 1 rubber base plate, so that the flexible connection between the steel plate of the protection device and the switch tie can be ensured, and the strength of the parts of the protection electric switch tie can be prolonged. The thickness of the rubber cushion plate is kept consistent under the slide plate, so that the thickness specification is reduced, and the cost is reduced; the length of the rubber base plate is consistent with that of the lower part of the dustproof device.

Width of the rubber pad: one side of the central line of the hole is flush with the dustproof device, namely the distance between the hole and the plate edge is 50 mm; the other side ensures that the edge of the horizontal plane of the bottom plate of the dustproof device is 20mm away from the edge of the rubber gasket plate, so that a larger flexible supporting area is provided for the dustproof device.

Refer to fig. 11. Heightening the base plate: the rubber base plates with the same thickness are arranged below the slide plate and the dustproof device, the thickness of the base plate of the slide plate is normally 20-27 mm, the thickness of the dustproof device is only 10mm, in order to unify the specifications of the switch tie bolt, a heightening base plate is additionally arranged between the dustproof device and the rubber base plate, the appearance of the heightening base plate is consistent with that of the rubber base plate, and the thickness is the difference value between the thickness h of the bottom plate of the slide plate and the thickness of the dustproof device, which is 10 mm. The heightening base plate is made of a Q235 steel plate, belongs to conventional materials, is convenient to process and manufacture, and is beneficial to reducing the manufacturing cost.

It is to be understood that: although above-mentioned embodiment is right the utility model discloses a design has done more detailed word description, but these word descriptions, are only right the utility model relates to a simple word description of idea, rather than right the utility model relates to a restriction of idea, any do not surpass the utility model relates to a combination, increase or the modification of idea all fall into the utility model discloses a within the protection scope.

Claims

1. An integral switch tie structure for protecting electric services is characterized by comprising an electric service switch tie (1), a rubber base plate (2), a heightening base plate (3), a protection device (4), a spring washer (5) and a switch tie bolt (6), wherein the electric service switch tie (1) is provided with two central lines, one central line is a switch tie central line before a traction point, the other central line is a switch tie central line after the traction point, a space between the front part of the integral electric service switch tie and the rear part of the switch tie is an electric service rod piece mounting area (7), the central lines of the switch tie before the traction point and the switch tie central line after the traction point are respectively provided with a sleeve bolt hole in which a track bed slide plate, an electric service conversion device and the protection device are mounted in a pre-embedded mode, and two sides of the protection device (4) are in screwed connection.

2. The integral switch tie structure for protecting electric service of claim 1, wherein: the two side edges of the protection device (4) are padded with height-adjusting base plates (3), and the two side edges of the protection device (4) are connected with the sleeve pipe in a screwing mode through spring washers (5) and bolts (6) to fix the protection device (4).

3. The integral switch tie structure for protecting electric service of claim 1, wherein: the height of the electric switch tie is consistent with that of the common switch tie in the switch area.

4. The integral switch tie structure for protecting electric service of claim 1, wherein: the height h of the electric service rod mounting area (7) is reserved according to the electric service rod.

5. The integral switch tie structure for protecting electric service of claim 1, wherein: the top width of the integrated electric switch tie in the switch area is the switch tie spacing at the traction point plus the top width of the conventional switch tie, and the bottom width is the switch tie spacing at the traction point plus the bottom width of the conventional switch tie.

6. The integral switch tie structure for protecting electric service of claim 1, wherein: the guard was made from a 10mm thick embossed steel plate Q235.

7. The integral switch tie structure for protecting electric service of claim 1, wherein: slide plates (8) are respectively arranged in front of and behind the traction point of the electric integrated switch tie.

8. The integral switch tie structure for protecting electric service of claim 1, wherein: the electric integral switch tie is characterized in that two slide bed plates are respectively arranged on the straight strand and the side strand, and a switch machine is also respectively arranged on the outer side of each slide bed plate.

9. The integral switch tie structure for protecting electric service of claim 1, wherein: width of the rubber pad: one side of the central line of the hole is flush with the dustproof device, namely the distance between the hole and the plate edge is 50 mm; the other side ensures that the edge of the horizontal plane of the bottom plate of the dustproof protection device is 20mm away from the edge of the rubber gasket plate so as to provide a flexible supporting area for the dustproof device.