WO2015067134A1 - Automatically adjusting telescopic connector for seamless rail - Google Patents

Abstract

An automatically adjusting telescopic connector for a seamless rail, the connector being used to connect two rails respectively located at the front and rear sides of the connector, and comprising two connecting heads (11, 12), a plurality of steel bridge blocks (2), a steel bridge box (3) and a base (5); the base (5) is disposed below the two rails, and used to install the steel bridge box (3); the steel bridge box (3) is disposed above the base (5) between the two rails, and used to bear the steel bridge blocks (2); the plurality of steel bridge blocks (2) are installed at the upper end of the steel bridge box (3), and used to support the wheels of a train; the plurality of steel bridge blocks (2) are plugged together front to back in a series, and an elastic piece (6) is disposed between two neighboring steel bridge blocks (2) so as to enable the distances between the plurality of steel bridge blocks (2) connected in a series to be adjustable; the two connecting heads (11, 12) are respectively located at the front and rear sides of the steel bridge box (3), and respectively fixed to two rails and plugged and cooperate with the corresponding steel bridge blocks (2); and elastic pieces are disposed between the two connecting heads (11, 12) and the corresponding steel bridge blocks (2). The connector automatically relieves stress in rails due to temperature changes.

Description

 Seamless rail retractable automatic adjustment connector

Technical field

The invention relates to the technical field of seamless rail stress regulation, in particular to a seamless rail telescopic automatic adjusting connector.

Background technique

With the speed of railway transportation, the industry is increasingly demanding railroad tracks. In order to ensure the smooth operation and safety of high-speed trains, high-speed railways nowadays generally adopt a seamless line scheme. Due to the material properties of the rail itself in the line, thermal expansion and contraction will occur. For example, the deformation of the 1000 km rail in the length direction is up to 400 m at a temperature difference of 40 degrees. In order to solve the problem of expansion and contraction of seamless lines, the industry usually adopts two kinds of seamless circuit schemes - temperature stress type and discharge temperature stress type.

However, the temperature stress type seamless line has high requirements on the strength of the rail and the roadbed, affects the service life of the rail and the roadbed, and monitors the maintenance cost in the railway operation. It is necessary to inspect the rail for the inspection and prevent the occurrence of the expansion rail in time. Derailment accident. The release temperature stress type is divided into an automatic release temperature stress type and a periodic release temperature stress type. The automatic release type has the disadvantages of complicated equipment manufacturing and high construction cost; and the regular release of the temperature stress type has the disadvantages of large labor demand and high maintenance cost.

Summary of the invention

The main object of the present invention is to provide a seamless rail expansion and contraction automatic adjusting connector, which aims to achieve the purpose of automatically releasing the stress generated by the temperature change of the rail and solving the problem of expansion and derailment caused by thermal expansion and contraction of the rail. .

To achieve the above object, the present invention provides a seamless rail telescopic automatic adjusting connector for connecting two sections of rails respectively located on the front and rear sides thereof, including two joints, a plurality of steel bridge modules, a steel bridge box and a base. ;among them,

The base is disposed below the two sections of rails for mounting the steel bridge box;

The steel bridge box is disposed above the base and disposed between the two sections of rails for supporting the steel bridge module;

The plurality of steel bridge modules are installed at an upper end of the steel bridge box for supporting train wheels, and the plurality of steel bridge modules are arranged in series in front and rear, and elastic between adjacent steel bridge modules The pieces are used to make the distance between the plurality of steel bridge modules in a series shape adjustable;

The two connecting heads are respectively located on the front and rear sides of the steel bridge box, respectively fixed to the two sections of rails, and are respectively mated with the corresponding steel bridge modules, and the two connecting heads are opposite thereto The elastic member is disposed between the steel bridge modules.

Preferably, the steel bridge module includes a body and a convex portion that protrudes forward from a front end surface of the body and a concave portion that is recessed forward by a rear end of the body, the concave portion providing another steel on a rear side thereof a convex portion of the bridge module is inserted, and the upper end faces of the body and the convex portion are used together for frictional contact with the train wheel;

One of the two connecting heads is provided with a convex portion for inserting and engaging with a concave portion of a steel bridge module in front thereof; and the other is provided with a concave portion for inserting and engaging with a convex portion of a steel bridge module at the rear thereof.

Preferably, the lower surface of the convex portion of the steel bridge module is formed with a buckle, and the upper surface of the concave portion is formed with a buckle that can be engaged with the buckle; the elastic member between the adjacent two steel bridge modules is a compression spring The front end surface and the rear end surface of the steel bridge module are correspondingly provided with spring mounting holes for fixing the compression spring.

Preferably, the steel bridge box comprises an upper wall, a lower wall, a support wall and a cavity between the upper wall and the lower wall, and an upper longitudinal hole and an outer length of the steel bridge box are opened a hole, the inner longitudinal hole and the outer longitudinal hole extending in a front-rear direction of the steel bridge box and communicating with the cavity;

The steel bridge module further includes an inner convex leg and an outer convex leg formed on a lower end surface thereof; the inner convex leg is inserted into the cavity through an inner longitudinal hole of the steel bridge box, and the outer convex leg is inserted Inserting an outer longitudinal hole of the steel bridge box into the cavity;

The seamless rail telescopic automatic adjustment connector further includes a plurality of sliding spacers located in the cavity, and the plurality of sliding spacers are respectively coupled to the inner and outer convex legs of the plurality of steel bridge modules.

Preferably, a surface of the sliding washer is opposite to a lower surface of the upper wall of the steel bridge box, and a steel ball is further disposed between a lower surface of the upper wall of the steel bridge box and the sliding washer, the steel ball Rotatablely embedded on the sliding pad.

Preferably, the method further includes a averaging device for adjusting a pitch of the plurality of steel bridge modules, the averaging device comprising a casing having a through cavity, a plurality of sturdy seats disposed in the through cavity and arranged in series, and The spacers are connected to each other and extend upwardly to pass through the plurality of equalizing rods of the outer casing and the spacers disposed between the two adjacent ones, and the spacers are adjacent to the two Said to be stable connection, to limit the distance between the two stable seats within a certain range;

The equalizer is installed in the steel bridge box, and the front and rear ends thereof are respectively fixed with the two connecting heads; the plurality of equalizing bars are respectively connected with the plurality of steel bridge modules to stabilize the plurality of The spacing between steel bridge modules.

Preferably, the upper wall of the steel bridge box further includes a middle longitudinal hole between the inner longitudinal hole and the outer longitudinal hole; the uniform seat is disposed in the cavity of the steel bridge box, The equal-stabilizing rods are respectively extended upward by the middle longitudinal holes to be respectively fixed to the convex portions of the plurality of steel bridge modules.

Preferably, the upper surface of the uniform seat is formed with a toothed protrusion, and the lower surface of the outer casing is provided with a rack portion at a position corresponding to the tooth shape of the uniform seat.

Preferably, a cavity is formed inside the uniform seat, and opposite facing surfaces of the two adjacent seats are formed with a shaft hole communicating with the cavity; the spacer of the stabilizer includes a spring and a connecting rod, the connecting rod comprising a rod body and an end cap located at two ends of the rod body, wherein the two end caps are respectively received in the cavity of the pair of the stable seats, and the rod body passes through the two blocks a shaft hole, the connecting rod is used to limit the longest distance between the two grounding seats; the two ends of the spring respectively abut the opposite faces of the two grounding seats to limit the shortest of the two grounding seats spacing.

Preferably, further comprising a booster disposed on an outer side of the plurality of steel bridge modules, the boosting member for limiting the outward movement of the steel bridge module.

The seamless rail expansion and contraction automatic adjustment connector (hereinafter referred to as a stress adjustment connector) disclosed in the present invention has a stress adjustment connector disposed between two rails, and the stress adjustment connector is when the rail is heated and expanded and the distance is shortened. The spacing between two adjacent steel bridge modules can be compressed to facilitate the expansion and deformation of the rail; when the rail is stretched by the cold and the distance is elongated, between the two adjacent steel bridge modules in the stress adjustment connector The spacing can be stretched to facilitate rail shrinkage and shorten deformation. The stress adjustment connector disclosed in the embodiment actively solves the temperature stress problem of the rail, and the structural design of the connecting rail is reasonable and innovative, the maintenance is convenient, the cost is relatively low, and the rail can be integrated into the whole; the stress adjustment connector Applicable to existing seamed lines, it can transform ordinary lines into seamless lines, realize high-speed operation of trains and rapid transformation and development of seamless lines.

DRAWINGS

1 is a schematic view showing the assembly structure of an embodiment of a seamless rail expansion and contraction automatic adjusting connector according to the present invention;

2 is a partial cross-sectional view showing the assembled structure of the seamless rail expansion and contraction automatic adjusting connector of FIG. 1;

3 is a schematic structural view of a steel bridge module of the seamless rail expansion and contraction automatic adjustment connector of FIG. 2;

4 is a schematic structural view of a rear connector of the seamless rail expansion and contraction automatic adjusting connector of FIG. 2;

Figure 5 is a schematic structural view of the front connector of the seamless rail expansion and contraction automatic adjusting connector of Figure 2;

6 is a schematic structural view of a steel bridge box of the seamless rail expansion and contraction automatic adjustment connector of FIG. 2;

Figure 7 is a partially enlarged structural view of the seamless rail expansion and contraction automatic adjustment connector of Figure 2;

8 is a schematic structural view of a sliding gasket of the seamless rail expansion and contraction automatic adjusting connector of FIG. 7;

9 is a schematic structural view of a homogenizer of the seamless rail expansion and contraction automatic adjustment connector of FIG. 2;

Figure 10 is a partially enlarged structural view of the stabilizer of Figure 9;

Figure 11 is a schematic structural view of the assisting member of the seamless rail expansion and contraction automatic adjusting connector of Figure 2;

12 is a schematic structural view of a connecting plate of the seamless rail expansion and contraction automatic adjusting connector of FIG. 2.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that, in the embodiment of the present invention, according to the XYZ rectangular coordinate system established in FIG. 1, one side in the positive direction of the X-axis is defined as the inner side, and the side located in the negative direction of the X-axis is defined as the outer side; One side in the positive direction of the Y-axis is defined as the front side, and the side in the negative direction of the Y-axis is defined as the rear side; the side located in the positive direction of the Z-axis is defined as the upper side, and the side located in the negative direction of the Z-axis is defined as the lower side.

The present invention provides a seamless rail expansion and contraction automatic adjustment connector (hereinafter referred to simply as a stress adjustment connector) for connecting two sections of rails respectively located on the front and rear sides thereof, with reference to FIGS. 1 and 2, in an embodiment. The stress adjustment connector includes a connector 11 , 12 , a plurality of steel bridge modules 2 , a steel bridge box 3 , a stabilizer 4 , and a base 5 . The base 5 is disposed under the two sections of the rails for mounting the steel bridge box 3; the steel bridge box 3 is disposed above the base 5 and is disposed between the two sections of the rails for carrying the steel bridge module 2; the steel bridge The module 2 is installed at the upper end of the steel bridge box 3 for supporting the train wheels, and the plurality of steel bridge modules 2 are arranged in series in front and rear, and elastic members 6 are arranged between the adjacent steel bridge modules 2 for The distance between the plurality of steel bridge modules 2 in series is adjustable, that is, the plurality of steel bridge modules 2 in series have a retractable effect; the two connecting heads 11 and 12 are respectively located in front and rear of the steel bridge box 3 The side is respectively fixed with the two sections of rails, and is respectively inserted and matched with the corresponding steel bridge module 2, and the elastic members 6 are disposed between the two connecting heads 11, 12 and the steel bridge module 2 opposite thereto. The fixing of the connecting heads 11, 12 and the rails may be welded or screwed.

In the stress adjustment connector disclosed in the embodiment, the stress adjustment connector is disposed between the two sections of the rail. When the rail is heated and the distance is shortened, the spacing between the adjacent two steel bridge modules 2 in the stress adjustment connector is Can be compressed to facilitate the expansion and deformation of the rail; when the rail is contracted by the cold and the distance is elongated, the spacing between the adjacent two steel bridge modules 2 in the stress adjustment connector can be stretched, thereby facilitating the rail contraction Shorten the deformation. The stress adjustment connector disclosed in the embodiment actively solves the temperature stress problem of the rail, and has reasonable structural design, innovation, convenient maintenance, low cost, and integral with the rail; and the stress adjustment connector is suitable for the existing With seamed lines, ordinary lines can be transformed into seamless lines to achieve rapid transformation and development of seamless lines.

In operation, the stress connector provided in this embodiment is detachable and replaceable by the steel bridge module 2 thereon, so that the steel bridge module 2 with different specifications can be used as needed to adapt to the temperature characteristics of different regions. In order to reduce the production cost and improve the stability of the stress connector, in the plurality of steel bridge modules 2 in series, the two steel bridge modules 2 at the beginning and the end are non-standard parts, and the remaining steel bridge modules 2 are standard parts. And by replacing or adjusting two steel bridge modules 2 which are non-standard parts at the beginning and the end, for example, using a longer or shorter steel bridge module 2, etc., so that the entire steel bridge module 2 is connected in series The spacing is kept within the preferred range.

Specifically, the joints 11, 12 are used to intersect the rails, so that a wear resistant steel material having a high strength similar to that of the rails is used. And the connector needs to be kept in a plane with the rail to avoid a joint having a height difference; the rail portion has a rail expansion space between the lower portion of the joints 11, 12 and the steel bridge box. The steel bridge box 3 is made of steel, and a joint hole groove 35 is provided at each of the front and rear ends for respectively accommodating the joints 11 and 12; the lower end of the steel bridge box 3 is kept in line with the rail to be integrated with the rail.

Referring to FIG. 3, in the present embodiment, the steel bridge module 2 includes a body 21 and a convex portion 22 protruding forward from the front end of the body 21 and a concave portion 23 recessed forwardly from the rear end of the body 21, and the concave portion 23 is located therein. The convex portion 22 of the other steel bridge module 2 on the rear side is inserted, and the upper end faces of the body 21 and the convex portion 22 are both used for contact friction with the train wheels.

Referring to FIG. 4 and FIG. 5, one of the two connecting heads 11 and 12 is provided with a convex portion 111 for inserting and engaging with the concave portion 23 of the steel bridge module 2 in front thereof; and another connecting head 12 is provided. The recess 121 is for inserting and engaging with the convex portion 22 of the steel bridge module 2 at the rear thereof.

The stress adjustment connector provided in this embodiment is the upper end surface of the convex portion 22 of the rear steel bridge module 2 and the front steel bridge module 2 in each adjacent two steel bridge modules 2 in the train wheel pressure. The upper end faces of the body 21 are simultaneously pressed; therefore, the adjacent two steel bridges do not have a slope due to uneven force, thereby avoiding the impact of the train wheels from one steel bridge module 2 to the other.

In this embodiment, the lower surface of the convex portion 22 of the steel bridge module 2 is formed with a buckle 221, and the upper surface of the concave portion 23 is formed with a buckle that can be engaged with the buckle 221 (not visible in the drawing, not labeled); The elastic member 6 between the adjacent two steel bridge modules 2 is a compression spring, and the front end surface and the rear end surface of the steel bridge module 2 are correspondingly provided with spring mounting holes 24 for fixing the compression spring. In other embodiments, the inner and outer end faces of the convex portion 22 of the steel bridge module 2 may be formed with a buckle 221, and the inner and outer end faces of the concave portion 23 are formed with buckles; or, the adjacent two steel bridge modules may pass Bolted screws are connected to each other.

Referring to FIG. 6 in combination, in the present embodiment, the steel bridge box 3 includes an upper wall 31, a lower wall 32, a support wall 33 and a cavity 34 between the upper wall 31 and the lower wall 32, and the upper wall 31 of the steel bridge is opened. There are an inner longitudinal hole 311 and an outer longitudinal hole 312. The inner longitudinal hole 311 and the outer longitudinal hole 312 extend along the front and rear direction of the steel bridge box 3 and communicate with the cavity 34; the steel bridge module 2 further includes The inner convex leg 25 and the outer convex leg 26 of the lower end surface; the inner convex leg 25 is inserted into the cavity 34 through the inner longitudinal hole 311 of the steel bridge box 3, and the outer convex leg 26 passes through the outer longitudinal hole of the steel bridge box 3. 312 is inserted into the cavity 34. Further, in the middle of the upper wall 31 of the steel bridge box 3, there is a fixing module 36. The structure of the fixing module 36 is the same as that of the steel bridge module 2, and can be regarded as a steel bridge module 2 integrally formed with the steel bridge box 3; The effect of forming a fixed support between the plurality of steel bridge modules 2 is achieved, and the instability caused by excessively long moving parts is avoided.

Referring to FIGS. 6-8 together, in order to be able to fasten the inner and outer legs 25, 26, which are inserted into the cavity 34, the stress adjustment connector further includes a plurality of sliding pads 7 located in the cavity 34, a plurality of The sliding washers 7 are respectively connected to the inner convex legs 25 and the outer convex legs 26 of the plurality of steel bridge modules 2 (only the mounting effect on the side of the inner convex legs 25 is shown in the figure, and the mounting effect of the outer convex legs 26 is the same), specifically The sliding washer 7 is provided with a through hole 71. The inner protruding leg 25 and the outer protruding leg 26 are provided with screw holes (not labeled), and the sliding washer 7 and the steel bridge module 2 are screwed by a plurality of bolts 73. Further, the sheet surface of the sliding pad 7 is opposed to the lower surface of the upper wall 31 of the steel bridge box 3, that is, the stability is improved by increasing the contact area, so that the steel bridge module 2 can be prevented from being skewed by the train wheel. In order to reduce the friction between the sliding washer 7 and the inner surface of the upper wall 31 of the steel bridge box 3, a steel ball (not shown) is further disposed between the lower surface of the upper wall 31 of the steel bridge box 3 and the sliding washer 7. . Specifically, the steel ball is rotatably embedded on the sliding pad 7, and the sliding pad 7 is provided with four holes 72 for accommodating four steel balls. Correspondingly, a lubricating medium may be added between the upper surface of the upper wall 31 of the steel bridge box 3 and the steel bridge module 2 to reduce the friction between the steel bridge box 3 and the steel bridge module 2, and the steel module is The bridge box remains zero wear.

In other embodiments, the steel bridge box 3 may also be a solid rectangular parallelepiped, and a plurality of grooves are formed on the upper surface thereof for respectively defining each steel bridge module 2, and then the steel bridge module is adopted by the compact structure. 2 is installed in the groove of the steel bridge box 3.

Due to the large friction force generated during the high speed operation of the train, the steel bridge module 2 will move forward and backward on the steel bridge box 3, and the movement will cause the steel bridge module 2 and the steel bridge box 3 to rub against each other and also damage each other. Will cause instability to the train. To solve this problem, in the present embodiment, the stress adjustment connector further includes a stabilizer 4 for adjusting the spacing of the plurality of steel bridge modules 2, and the stabilizer 4 includes a housing 41 having a through cavity 411 located in the through cavity 411. A plurality of uniform seats 42 arranged in series and a plurality of equal stabilizer bars 43 connected to the uniform block 42 and extending upward to pass through the outer casing 41. The stabilizer 4 further includes a plurality of spacers 44, and a spacer 44 is disposed between each of the two stabilizers 42. Each spacer 44 is connected to two adjacent stabilizers 42 to limit two The distance between the blocks 42 is within a certain range. The equalizer 4 is installed in the steel bridge box 3, and the front and rear ends thereof are respectively fixed with the two connecting heads 11, 12 to be fixed with the two rails; the plurality of equal stabilizers 43 are respectively connected with the steel bridge module 2 to stabilize The spacing between the steel bridge modules 2. Specifically, the two ends of the stabilizer 4 are respectively connected to the two connectors 11 and 12 through two connecting rods 45. The two connecting rods 45 are provided with mounting holes for screwing with the connecting heads 11, 12 by bolts.

The stabilizer 4 can stabilize the steel bridge module 2 when the train is running and braking, so that the steel bridge module 2 maintains an equal distance, and can be linked with the rail expansion and contraction without affecting the adjustment function of the stress adjustment connector. The upper portion of the stabilizer bar 43 is further provided with an anti-slip plug 432 and a curvature elastic member 433 for increasing the stability of the stabilizer 4. Similarly, in operation, since the gap between the two ends of the rails is often in a range of fluctuations, the stabilizer 4 can be arranged in a row on the two connecting rods 45 of the stabilizer 4 in order to be able to adapt to these situations. Multiple mounting holes for bolting and fixing; or mounting holes for long holes.

In this embodiment, the upper wall 31 of the steel bridge box 3 further includes a middle longitudinal hole 313 between the inner longitudinal hole 311 and the outer longitudinal hole 312; the stable seat 42 is disposed in the cavity 34 of the steel bridge box 3. The average stabilizer bar 43 is extended upward through the middle longitudinal hole 313 to be connected to the plurality of steel bridge modules 2, respectively. In order to facilitate the installation of the stabilizer, the bottom wall 32 of the steel bridge box 3 has an opening (not visible in the figure) at the position of the corresponding medium longitudinal hole 313 for mounting the stabilizer 4 to the cavity of the steel bridge box 3. 34. In this embodiment, the end of the stabilizer bar 43 is provided with a thread 413. The steel bridge module 2 is provided with a screw hole (not shown) at a corresponding position, and the stabilizer bar 43 and the steel bridge module 2 are screwed and fastened. Specifically, in order to achieve a good stabilizing effect, the stabilizer bar 43 is coupled to the lower end of the convex portion 22 of the steel bridge module 2, so that the steel bridge module 2 includes three mounting positions, respectively, the inner convex leg 25 and the outer side. At the convex portion 26 and the convex portion 22, the three mounting positions are triangular, so that a better stabilizing effect can be achieved.

In this embodiment, the upper surface of the stabilizer 42 is formed with a toothed protrusion 421, and the lower surface of the outer casing 41 is provided with a rack portion 412 at a position corresponding to the toothed protrusion 421 of the uniform seat 42 for use in the train. When the wheel is pressed, the outer casing 41 and the uniform seat 42 are engaged with each other to prevent the displacement of the uniform seat 42 in the through cavity 411 of the outer casing 41.

In this embodiment, the spacer 44 of the stabilizer 4 includes a spring 441 and a link 442 for limiting the longest interval between two adjacent seats 42; the spring 441 is used to limit the adjacent Both of them are the shortest distance between the seats 42 and are damped when the adjacent two equal seats 42 move toward each other. Specifically, a cavity 422 is formed in the inner block 42 and the opposite surfaces of the two adjacent seats 42 are formed with a shaft hole (filled by the link 442, not labeled) communicating with the cavity 422; The connecting rod 442 includes a rod body 4421 and an end cap 4422 at both ends of the rod body 4421. The two end caps 4422 are respectively received in the cavities 422 of the pair of stable seats 42. The rod body 4421 passes through the shafts of the two stabilizing seats 42. The hole and the connecting rod 442 are used to limit the longest distance between the two stabilizers 42. The two ends of the spring 441 abut the opposite faces of the two stabilizers 42 to limit the shortest spacing of the two blocks 42 .

In other embodiments, the spacer 44 may also be other structures. For example, other elastic members may be used instead of the spring 441, such as a rubber block to limit the shortest distance between the adjacent two stable seats 42; 442 can also be replaced by other connectors, such as a steel cable to limit the longest spacing between two adjacent seats 42; of course, magnetic force can also be used to limit the two adjacent seats 42 The shortest distance between them is, for example, that two magnets are respectively disposed on the two stabilizers 42 and are opposite to each other for generating a repulsive force.

Since the wheel of the train passes through the stress-adjusting connector, the wheel generates a pressing force from the inside to the outside. In order to overcome the pressing force, the embodiment further includes a boosting member 8 disposed on the outer side of the plurality of steel bridge modules 2, and the power is assisted. The piece 8 is used to restrict the steel bridge module 2 from moving to the outside. That is, under the rolling of the wheel, the assisting member 8 generates a downward movement, in which the assisting member 8 can also generate an inward pressing motion, thereby preventing the steel bridge module 2 from being outwardly deviated to achieve Stabilize the purpose of the steel module. In this embodiment, the boosting member 8 includes a boosting arm 81 and an elastic member 83 disposed at a lower end of the assisting arm 81. The cross section (not shown) of the boosting arm 81 is a trapezoid having a small upper end and a lower end, and the assisting arm 81 and An elastic member 84 is disposed between the steel bridge modules 2. When the train wheel is pressed past the booster arm 81, the elastic member 83 is compressed, and the larger upper end of the booster arm 81 is lowered, thereby causing the distance between the booster arm 81 and the steel bridge module 2 to become smaller, thereby squeezing The elastic member 84 is pressed therebetween to generate resistance toward the inner side. Further, the lower end of the assisting arm 81 is provided with a soft material 82 for generating deformation, and the upper end of the assisting arm 81 is prevented from generating excessive supporting force on the train wheel. In other embodiments, the auxiliary member 8 can also adopt other structures for pushing against the outer side of the steel bridge module 2, thereby playing a limiting role when the steel bridge module 2 is moved outward. For example, the booster 8 can also employ a hydraulic pusher to create resistance to the module for stabilizing the connector.

In this embodiment, the connecting plate 9 for connecting the steel bridge box 3 and the two sections of the rails is further included. Specifically, the connecting board 9 includes a long row of holes 91 for screwing, for the bolts to be along the length thereof. The row is moved so that the distance can be adjusted when the steel bridge box 3 and the rail are fastened.

The stress adjustment connector disclosed in the embodiment has the following advantages: actively solving the stress problem of the rail, does not cause the expansion and break accident, and improves the safety of the train; the relative tip rail adjuster is simple to install and convenient to maintain. The cost is low and can be integrated with the rail. At the same time, the size of the steel bridge module 2 and the gap between the steel bridge modules 2 can be determined according to the climate of different regions, so as to maintain the stability of the rail. And the railway maintenance staff can also observe the expansion and contraction condition and variation law of the rail by observing the gap between the steel bridge modules 2, which is more conducive to the maintenance work of the railway; the rail stress is released, and the tolerance of the roadbed and the rail is reduced. Sexuality improves the service life of railways; reduces technical requirements such as railway construction costs and roadbed strength.

At present, China is in the period of great development of railway construction. The development of high-speed railway has become the direction and driving force of China's railway and economic development. Now most large cities are planning and constructing subway seamless lines, and the scale is huge. The stress adjustment connector disclosed in this embodiment can be well utilized. China's original line is usually 25m (or 12.5m) standard rail laying, the gap between them is 8mm (or 16mm); when these lines are modified, the 25m line can be first welded to 200-500 meters and above. A seamless rail and the stress-adjusting connector between the two seamless rails to solve the stress problem of the seamless rail, achieving the cross-connect function of the two-span seamless rail; the stress-adjusting connector and the seamless rail It can meet the safe driving requirements of 350 km trains. With the transformation project of the stress adjustment connector, the input cost is relatively low, and the operation is convenient, and the rapid transformation and development of the seamless line can be realized. Railway transportation is the foundation and driving force for economic development. It has a very important impact on the national economic construction. In transportation, railways have a large amount of transportation and fast speed, which are particularly important for driving economic development. China is seriously lacking in railway transportation capacity. The country, exaggerating the work and the large floating population, is hard to find every year during the Spring Festival. If the Chinese railway can be completely transformed into a seamless route, it can not only improve the transportation capacity, but also reduce the investment and maintenance costs and technical difficulties and accelerate The development speed of high-speed railway will be of great significance to China's transportation, to people's lives and social environment.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Claims (10)

A seamless rail telescopic automatic adjusting connector for connecting two sections of rails respectively located on the front and rear sides thereof, comprising two connecting heads, a plurality of steel bridge modules, a steel bridge box and a base; wherein The base is disposed below the two sections of rails for mounting the steel bridge box; The steel bridge box is disposed above the base and disposed between the two sections of rails for supporting the steel bridge module; The plurality of steel bridge modules are installed at an upper end of the steel bridge box for supporting train wheels, and the plurality of steel bridge modules are arranged in series in front and rear, and elastic between adjacent steel bridge modules The pieces are used to make the distance between the plurality of steel bridge modules in a series shape adjustable; The two connecting heads are respectively located on the front and rear sides of the steel bridge box, respectively fixed to the two sections of rails, and are respectively mated with the corresponding steel bridge modules, and the two connecting heads are opposite thereto The elastic member is disposed between the steel bridge modules. A seamless rail expansion and contraction automatic adjustment connector according to claim 1, wherein said steel bridge module comprises a body and a convex portion projecting forward from a front end of said body and facing from a rear end of said body a recessed portion of the front recess, the recess being inserted into a convex portion of another steel bridge module located at a rear side thereof, and the upper end faces of the body and the convex portion are collectively used for frictional contact with the train wheel; One of the two connecting heads is provided with a convex portion for inserting and engaging with a concave portion of a steel bridge module in front thereof; and the other is provided with a concave portion for inserting and engaging with a convex portion of a steel bridge module at the rear thereof. The seamless rail expansion and contraction automatic adjustment connector according to claim 2, wherein a lower surface of the convex portion of the steel bridge module is formed with a hook, and an upper surface of the concave portion is formed with a buckle engageable with the buckle The elastic member between the adjacent two steel bridge modules is a compression spring, and the front end surface and the rear end surface of the steel bridge module are correspondingly provided with spring mounting holes for fixing the compression spring. A seamless rail expansion and contraction automatic adjustment connector according to claim 2, wherein said steel bridge box comprises an upper wall, a lower wall, a support wall and a cavity between said upper and lower walls, The upper wall of the steel bridge box is provided with an inner longitudinal hole and an outer longitudinal hole, and the inner longitudinal hole and the outer longitudinal hole extend along the front and rear direction of the steel bridge box and communicate with the cavity; The steel bridge module further includes an inner convex leg and an outer convex leg formed on a lower end surface thereof; the inner convex leg is inserted into the cavity through an inner longitudinal hole of the steel bridge box, and the outer convex leg is inserted Inserting an outer longitudinal hole of the steel bridge box into the cavity; The seamless rail telescopic automatic adjustment connector further includes a plurality of sliding spacers located within the cavity, the plurality of sliding spacers being coupled to the inner and outer convex legs of the plurality of steel bridge modules, respectively. A seamless rail expansion and contraction automatic adjustment connector according to claim 4, wherein a surface of said sliding washer is opposite to a lower surface of an upper wall of said steel bridge box, and an upper wall of said steel bridge box A steel ball is further disposed between the lower surface and the sliding gasket, and the steel ball is rotatably embedded on the sliding gasket. A seamless rail expansion and contraction automatic adjustment connector according to claim 4, further comprising a leveling device for adjusting a pitch of the plurality of steel bridge modules, the leveling device comprising a casing having a through cavity, located at a plurality of uniform stabilizers arranged in series in the through-cavity, and a plurality of equal-stable rods connected to the housing and extending upward to pass through the outer casing and two adjacent ones a spacer between the spacers and the two adjacent ones of the spacers are connected to limit the distance between the two stable seats within a certain range; The equalizer is installed in the steel bridge box, and the front and rear ends thereof are respectively fixed with the two connecting heads; the plurality of equalizing bars are respectively connected with the plurality of steel bridge modules to stabilize the plurality of The spacing between steel bridge modules. The seamless rail expansion and contraction automatic adjustment connector according to claim 6, wherein the upper wall of the steel bridge box further comprises a middle longitudinal hole between the inner longitudinal hole and the outer longitudinal hole; The two stabilizers are respectively disposed in the cavity of the steel bridge box, and the uniform stabilizer rods are respectively extended upward through the middle longitudinal holes to be fixed with the convex portions of the plurality of steel bridge modules. The seamless rail expansion and contraction automatic adjustment connector according to claim 6, wherein the upper surface of the uniform seat is formed with a toothed protrusion, and the lower surface of the outer casing is corresponding to the tooth of the uniform seat. A rack portion is provided at a position where the shape is convex. The seamless rail expansion and contraction automatic adjustment connector according to claim 6, wherein a cavity is formed inside the uniform seat, and opposing faces of the two adjacent seats are formed with a cavity a communicating shaft hole; the spacer of the stabilizer includes a spring and a connecting rod, the connecting rod includes a rod body and an end cap at both ends of the rod body, and the two end caps are respectively accommodated in the pair In the stable cavity, the rod body passes through the shaft holes of the two fixed seats, and the connecting rod is used to limit the longest distance between the two blocks; the two ends of the spring respectively abut the two holes The opposing faces of the seats are used to limit the shortest spacing of the two blocks. A seamless rail retractable automatic adjustment connector according to claim 1, further comprising a booster disposed on an outer side of the plurality of steel bridge modules, the boosting member for restricting movement of the steel bridge module .