Concrete crossing slab suitable for meter gauge railway and level crossing track structure

Abstract

The invention discloses a concrete crossing plate suitable for a meter-gauge railway and a level crossing track structure, and the concrete crossing plate comprises a crossing plate body which is provided with two track bearing grooves; the limiting plate is connected with the side wall of the side, close to the center of the crossing plate body, of the rail bearing groove and provides a limiting effect for steel rail installation; a mounting window is further formed in the limiting plate; and the cover plate is detachably arranged at the mounting window of the limiting plate, so that when the steel rail is mounted in the rail bearing groove through a fixing piece until the rail web of the steel rail abuts against one side of the limiting plate, the rail web of the steel rail, the limiting plate and the side wall of the rail bearing groove form a drainage groove structure. According to the concrete crossing plate, the situation that the crossing plate is upwarped and uneven under the long-term effect of vehicle impact loads can be avoided, the vehicle passing safety and smoothness are guaranteed, and the maintenance workload of the crossing plate in the operation period is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of meter-gauge railway tracks, and in particular to a concrete crossing plate and a level crossing track structure suitable for meter-gauge railways. Background Art

[0002] Level crossings not only have to bear the load of railway trains, but also the impact of cars passing through. Therefore, they are the sections with the largest amount of maintenance and repair work in the line. In my country, early highway-railway level crossings were generally paved with concrete, stone or wooden materials. Due to the complex structure, such crossing panels were severely damaged, and the geometric dimensions of the track were difficult to maintain, endangering driving safety. At present, the commonly used types of crossing panels are steel plate paved crossing panels and rubber wire-embedded crossing panels. Among them, steel plate paved crossing panels have the characteristics of high strength, good flatness and good overall appearance, but their elasticity is poor and they cannot reduce the impact of vehicles, which causes the crossing pavement to warp and become uneven, increasing the impact on rail vibration. The impact damage of steel plates has a great impact on sleepers and is difficult to repair; rubber wire-embedded crossing panels are rubber crossing panels laid on gravel roadbed sleepers. They have good elasticity, but after a period of use, they are easy to loosen and warp. Some of them are indirectly damaged or even broken by overloaded cars on concrete sleepers. The geometric dimensions of the track are difficult to maintain, and the workload of later maintenance and repair is large. In addition, the fixings used to connect the rails and sleepers are mostly directly exposed to the outside. As the use time increases, rain and snow will corrode the connecting parts, resulting in a reduction in the service life of the pavement and an increase in the workload of subsequent maintenance.

[0003] In view of this, it is necessary to design a concrete crossing slab and a level crossing track structure suitable for meter-gauge railways to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a concrete crossing plate and a level crossing track structure suitable for meter-gauge railways, which can avoid the situation that the crossing plate is warped and uneven under the long-term action of vehicle impact load, ensure the safety and smoothness of vehicle traffic, and reduce the maintenance and repair workload of the crossing plate during operation.

[0005] To achieve the above-mentioned object of the invention, the present invention provides a concrete crossing slab suitable for meter-gauge railway, comprising: A crossing plate body, wherein two rail bearing grooves are arranged on the crossing plate body; A limit plate, the limit plate is connected to the side wall of the rail bearing groove close to the center of the crossing plate body to provide a limit for rail installation; the limit plate is also provided with an installation window for facilitating rail fixation; The cover plate is detachably arranged at the installation window of the limit plate, so that when the rail is installed in the rail bearing groove through the fixing part until the rail waist abuts against one side of the limit plate, a drainage groove structure is formed between the rail waist, the limit plate and the side wall of the rail bearing groove.

[0006] As a further improvement of the present invention, the limit plate is inclined along the extension direction of the rail.

[0007] As a further improvement of the present invention, the limit plate is an inclined plate inclined downward in a direction close to the center of the crossing plate body.

[0008] As a further improvement of the present invention, it also includes a connecting assembly for connecting adjacent crossing plates.

[0009] As a further improvement of the present invention, the connection assembly includes mutually matching grooves and protrusions respectively arranged at the lower parts of both ends of the crossing plate body, and the diameter of the protrusion gradually increases in the direction away from the crossing plate body.

[0010] As a further improvement of the present invention, each right-angled edge on the upper portion of the crossing plate body is provided with an angle steel frame.

[0011] As a further improvement of the present invention, the limit plate is connected to the waist of the rail by waterproof glue.

[0012] As a further improvement of the present invention, a plurality of embedded sleeves for installing fixing parts are arranged on the crossing plate body.

[0013] As a further improvement of the present invention, suspension connectors are provided on both sides of the crossing plate body for facilitating lifting of the crossing plate.

[0014] The present invention also provides a level crossing track structure, comprising an ordinary section formed by the concrete crossing plate described in the above technical solution and a composite section arranged between the ordinary section and the non-level crossing gravel roadbed structure, wherein the composite section comprises the concrete crossing plate and an elastic plate with a certain elasticity connected to the bottom of the concrete crossing plate.

[0015] The beneficial effects of the present invention are: 1. The present invention sets a limit plate on one side of the center of the rail bearing groove near the crossing plate body. On the one hand, when installing the rail, the waist of the rail can be fitted on one side of the limit plate, that is, the left and right positions of the rail can be quickly positioned by using the limit plate, and then the front and rear positions of the rail can be further adjusted to complete the positioning of the rail, so as to achieve rapid installation of the rail; on the other hand, after the rail is fixed on the crossing plate by the fixing member, the installation window can be covered by the cover plate, so that the limit plate can be used as a shielding plate to shield the fixing member located below the limit plate, to a certain extent, avoid rain and snow from scouring the fixing member below the limit plate, and increase the service life of the fixing member. In addition, because the limit plate abuts against the waist of the rail, a drainage groove structure is formed between the waist of the rail, the limit plate and the side wall of the rail bearing groove, so that in rainy and snowy weather, rainwater gathers in the drainage groove and is quickly drained away, avoiding rainwater from gathering in the crossing plate and affecting the service life of the crossing plate.

[0016] 2. The present invention provides a composite section between the ordinary section and the conventional non-level crossing gravel ballast structure composed of gravel and sleepers, and uses the composite section as a transition section to gradually increase the stiffness of the non-level crossing gravel ballast to the ordinary section, thereby increasing the smoothness and comfort of the level crossing track structure.

[0017] 3. The crossing plate of the present invention adopts an integrated design of sleepers and roadbed, which has a simple structure and good integrity, and can avoid the situation where multiple parts are connected and loosened, deformed and lifted under the impact load of vehicles. In addition to being used for level crossings, the concrete crossing plate can also be used in railway freight yards, urban rail transit, trams, standard gauge or other gauge railways and other scenarios, and has wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a plan view of a concrete crossing slab suitable for meter-gauge railway according to the present invention.

[0019] Figure 2 This is a plan view of a concrete crossing slab without a cover slab installed.

[0020] Figure 3 A side view of a concrete crossing slab.

[0021] Figure 4 This is the AA cross-section diagram.

[0022] Figure 5 This is a schematic diagram after the rails are installed in the rail groove.

[0023] Figure 6 Schematic diagram of top view of grooves and bumps on the crossing plate.

[0024] Figure 7 This is a schematic diagram of the connection between adjacent crossing plates.

[0025] Figure 8 A schematic diagram of a composite segment.

[0026] Reference numerals 10. Crossing plate body; 11. Rail bearing groove; 12. Embedded sleeve; 13. Trapezoidal groove; 14. Lifting ring; 20. Fixing piece; 30. Limiting plate; 31. Installation window; 32. Cover plate; 33. Bolt; 40. Rubber filling layer; 51. Bump; 52. Groove; 60. Angle steel; 70. Rail; 80. Elastic plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the drawings, while other details that are not closely related to the present invention are omitted.

[0029] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0030] like Figure 1-Figure 5 As shown, the present invention provides a concrete crossing slab suitable for a meter-gauge railway, comprising: A crossing plate body 10, wherein two rail bearing grooves 11 are provided on the crossing plate body 10; The limiting plate 30 is connected to the side wall of the rail bearing groove 11 close to the center of the crossing plate body 10 to provide a limiting function for the installation of the rail 70; the limiting plate 30 is also provided with an installation window 31 for fixing the rail 70; The cover plate 32 is detachably arranged at the installation window 31 of the limit plate 30, so that the rail 70 is installed in the rail groove 11 through the fixing member 20 until the waist of the rail 70 abuts against one side of the limit plate 30, and a drainage groove structure is formed between the waist of the rail 70, the limit plate 30 and the side wall of the rail groove 11.

[0031] Specifically, the crossing plate body 10 adopts an integrated design of the sleeper and the roadbed, with a simple structure and good integrity. It can avoid the loosening, deformation and warping of multiple components connected under the impact load of the vehicle, ensure the safety, smoothness and comfort of the vehicle operation, and reduce the workload of operation and maintenance.

[0032] Exemplarily, the crossing plate body 10 is an ordinary reinforced concrete structure, including a steel skeleton and concrete poured on the steel skeleton, the concrete strength grade is C50, the steel skeleton includes upper, middle and lower three layers of steel bars, wherein the longitudinal bars, transverse bars and stirrups are made of ordinary hot-rolled ribbed steel bars HRB400, the steel skeleton adopts the connection method of the middle transverse bars and the lower transverse bars hooking the longitudinal bars of this layer, and the upper transverse bars hooking downwards the lower longitudinal bars, and the stirrups are arranged in a "plum blossom" shape to form a stable steel skeleton, so that the steel skeleton and the concrete together form the crossing plate body 10 in the form of a reinforced concrete slab, which ensures the bearing capacity of the crossing plate, and can well meet the bearing requirements of the crossing when the traffic forms and loads of the level crossing are diverse and the vehicles are sometimes overloaded.

[0033] Specifically, the limit plate 30 is an inclined plate slanting downward along the center direction of the crossing plate body 10, and is inclined along the extension direction of the rail 70, so that rainwater can gather on the limit plate 30 and quickly flow out along the drainage trough structure, thereby preventing rainwater from gathering in the crossing plate and affecting the service life of the crossing plate.

[0034] For example, Figure 5 As shown, taking the rail bearing groove 11 at the right part of the crossing plate body 10 as an example, when the rail 70 is installed in the rail bearing groove 11, the limit plate 30 is located on the left side of the rail 70. Above the limit plate 30 is the train wheel flange placement area.

[0035] Since the limit plate 30 is arranged on the left side of the rail 70, the limit plate 30 can be used as a shielding plate to provide shielding for the fixing part 20 on the left side of the rail 70, thereby preventing rain and snow from eroding the fixing part 20 below the limit plate 30 to a certain extent, and increasing the service life of the fixing part 20; illustratively, a rubber filling layer 40 is arranged on the right side of the rail 70, and the upper surface of the rubber filling layer is flush with the surface of the crossing plate body 10, so that the rubber filling layer 40 can be used to reduce the bumps when the vehicle passes, and at the same time, the rubber filling layer 40 can also be used to provide a certain rain and dustproof effect for the fixing part 20 on the right side of the rail 70.

[0036] Specifically, the limiting plate 30 is connected to the waist of the rail 70 by waterproof glue, so as to avoid the presence of a gap at the joint between the limiting plate 30 and the waist of the rail 70, which may cause rainwater to seep through the gap.

[0037] Specifically, it also includes a connection assembly for connecting adjacent crossing plates. Figure 6 and Figure 7As shown, the connection assembly includes mutually matching grooves 52 and protrusions 51 respectively arranged at the lower parts of both ends of the crossing plate body 10, and the diameter of the protrusions 51 gradually increases along the direction away from the crossing plate body 10, so that the grooves 52 on the opposite sides of the adjacent crossing plate bodies 10 match with the protrusions 51 to achieve the connection of the adjacent crossing plates. For example, the protrusions 51 are trapezoidal blocks. The crossing plate is installed along the direction from the grooves 52 to the protrusions 51, that is, after the first crossing plate is installed in place, the grooves 52 of the second crossing plate are aligned with the protrusions 51 of the first crossing plate, and the second crossing plate is lowered by the sling, so that the grooves 52 of the second crossing plate cover the protrusions 51 of the first crossing plate, that is, the connection between the first crossing plate and the second crossing plate is achieved, and because the grooves 52 and the protrusions 51 are arranged at the lower part of the crossing plate body 10, when the grooves 52 and the protrusions 51 are engaged, the upper surfaces of the first crossing plate and the second crossing plate can fit tightly.

[0038] Specifically, each right-angled side of the upper portion of the crossing plate body 10 is provided with an angle steel 60 frame, which is inserted into the crossing plate body 10 through connecting steel bars to ensure that the angle steel 60 is firmly installed. The crossing plate body 10 is protected by the angle steel 60 hemming, which can prevent the impact of municipal traffic vehicle wheels from damaging the crossing plate edge.

[0039] Exemplarily, the rail bearing groove 11 is a dovetail groove. The dovetail design of the rail bearing groove 11 can reduce the harmful space for vehicle passage and reduce the impact of vehicles on the crossing plate while meeting the requirements of the rail 70, fastener installation and wheel flange groove space, while ensuring the stability of traffic vehicles passing.

[0040] Specifically, the crossing plate body 10 is provided with a plurality of embedded sleeves 12 for facilitating the installation of the fixing members 20; the fixing members 20 are illustratively elastic fasteners. By threading the fasteners in the embedded sleeves 12, the rails 70 can be fixed on the crossing plate body 10.

[0041] Specifically, the two sides of the crossing plate body 10 are provided with suspension connectors for suspending the crossing plate. For example, the suspension connectors are lifting rings 14, and the crossing plate body 10 is provided with four trapezoidal grooves 13, and the four lifting rings 14 are respectively arranged in the four trapezoidal grooves 13 ( Figure 3 ), the lifting ring 14 is made of Q235B round steel with a diameter of 32mm, and the tail end of the lifting ring 14 is made into a hook and anchored in the crossing plate body 10.

[0042] Exemplarily, the limiting plate 30 is formed integrally with the crossing plate body 10 , and screw holes for facilitating installation of the cover plate 32 are pre-buried on the limiting plate 30 .

[0043] Specifically, when installing the rail 70, a hanger is used to drop the rail 70 into the rail groove 11 through the space between the side wall of the rail groove 11 and the limit plate 30, and then the waist of the rail 70 is abutted against one side of the limit plate 30, thereby completing the left-right positioning of the rail 70, and further adjusting the front and rear positions of the rail 70 to complete the positioning of the rail 70; the fixing member 20 is installed through the installation window 31 so that the rail 70 and the crossing plate body 10 remain relatively fixed; the cover plate 32 is covered on the installation window 31 and screwed into the screw hole with bolts 33 to complete the installation of the cover plate 32; then, the gap at the abutment between the limit plate 30 and the waist of the rail 70 is sealed with waterproof glue; finally, the rubber is installed on the side of the rail 70 away from the limit plate 30, so that a rubber filling layer 40 is formed on the side of the rail 70 away from the limit plate 30.

[0044] The present invention also provides a level crossing track, comprising a common section formed by a concrete crossing plate and a composite section arranged between the common section and a non-level crossing gravel roadbed structure, wherein the composite section comprises a concrete crossing plate and an elastic plate 80 ( Figure 8 ).

[0045] By arranging an elastic plate 80 with a certain elasticity at the bottom of the concrete crossing plate, the stiffness can be reduced to a certain extent, so that when the composite section is arranged between the non-level crossing gravel roadbed structure composed of gravel and sleepers and the ordinary section, the composite section is used as a transition section to make the stiffness between the overall roadbed of the level crossing and the gravel roadbed of the non-level crossing gradually transition, so as to improve the smoothness and comfort of train operation.

[0046] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A concrete crossing slab suitable for meter-gauge railway, characterized in that: include: A crossing plate body, wherein two rail bearing grooves are arranged on the crossing plate body; A limit plate, the limit plate is connected to the side wall of the rail bearing groove close to the center of the crossing plate body to provide a limit for rail installation; the limit plate is also provided with an installation window for facilitating rail fixation; The cover plate is detachably arranged at the installation window of the limit plate, so that when the rail is installed in the rail bearing groove through the fixing part until the rail waist abuts against one side of the limit plate, a drainage groove structure is formed between the rail waist, the limit plate and the side wall of the rail bearing groove.

2. The concrete crossing slab suitable for meter-gauge railway according to claim 1, characterized in that: Along the extending direction of the rail, the limit plate is inclined.

3. The concrete crossing slab suitable for meter-gauge railway according to claim 1, characterized in that: The limit plate is an inclined plate which is inclined downward in a direction close to the center of the crossing plate body.

4. The concrete crossing slab suitable for meter-gauge railway according to claim 1, characterized in that: Also included is a connecting assembly for connecting adjacent crossing plates.

5. The concrete crossing slab suitable for meter-gauge railway according to claim 4, characterized in that: The connection assembly comprises mutually matching grooves and protrusions respectively arranged at the lower parts of both ends of the crossing plate body, and the diameter of the protrusions gradually increases in a direction away from the crossing plate body.

6. The concrete crossing slab suitable for meter-gauge railway according to claim 1, characterized in that: Each right-angled side on the upper part of the crossing plate body is provided with an angle steel frame.

7. The concrete crossing slab suitable for meter-gauge railway according to claim 1, characterized in that: The limiting plate is connected to the waist of the rail through waterproof glue.

8. The concrete crossing slab suitable for meter-gauge railway according to claim 1, characterized in that: The crossing plate body is provided with a plurality of pre-buried sleeves for installing fixing parts.

9. The concrete crossing slab suitable for meter-gauge railway according to claim 1, characterized in that: Suspension connectors are arranged on both sides of the crossing plate body for facilitating lifting of the crossing plate.

10. A level crossing track structure, characterized in that: It comprises an ordinary section formed by the concrete crossing plate according to claim 1 and a composite section arranged between the ordinary section and the non-level crossing gravel roadbed structure, wherein the composite section comprises the concrete crossing plate and an elastic plate with certain elasticity connected to the bottom of the concrete crossing plate.

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