Ballastless track structure

Abstract

The utility model discloses a ballastless track structure which comprises a base plate and a track plate unit located on the base plate, a track bearing table is arranged on the track plate unit, a steel rail is installed on the track bearing table, and the ballastless track structure is characterized in that a groove is formed in one end of the track plate unit, and a square boss is arranged at the other end of the track plate unit; a limiting assembly is arranged between every two adjacent track plate units. The groove and the boss matched with the groove are arranged at the two ends of the track plate unit respectively, limiting is achieved through cooperation of the groove, the boss and the limiting assembly, the boss does not need to be manufactured on the base plate, the structure is simplified, and the manufacturing efficiency of the base plate can be improved; the groove is designed to be trapezoidal, the boss is designed to be square, the self-adaptive centering limiting plate is arranged in the groove, the limiting plate is hinged to the track plate units, and then the top plate is matched, so that connection between the two track plate units can be enhanced, warping displacement of the track plate units is limited, and smoothness of the ballastless track is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway engineering technical field, in particular to a ballastless track structure. BACKGROUND

[0002] Plate type ballastless track has the advantages of high laying precision, good line smoothness, etc., and is widely used in high-speed railway. In order to maintain the smoothness and stability of the track structure, the ballastless track needs to have good limiting function to strictly limit the overall displacement and torsion of the track component.

[0003] The present inventor has previously applied for a novel plate type ballastless track structure (authorized publication number CN 217052873 U), which limits the longitudinal and lateral overall displacement and horizontal torsion of the track plate unit by designing bosses and grooves on the base plate and track plate unit. The above-mentioned base plate and bosses thereon need to be made on site, and the production process is complicated and cannot guarantee that the precast track plate unit achieves the preset limiting effect. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a ballastless track structure, which cooperates with the limiting assembly through the groove and square boss arranged on the track plate unit, and no longer needs to arrange bosses on the base plate to limit the track plate unit.

[0005] To solve the above technical problems, the technical scheme adopted by the present application is as follows: a ballastless track structure, comprising a base plate and a track plate unit located thereon, the track plate unit is provided with a rail bearing platform, and a steel rail is installed on the rail bearing platform, the key lies in that: a trapezoidal groove is arranged at one end of the track plate unit, and a square boss is arranged at the other end of the track unit and extends into the groove of the adjacent track plate unit.

[0006] A limiting assembly is arranged between the two adjacent track plate units, the limiting assembly comprises a first limiting plate and a second limiting plate arranged in the groove and used for limiting different side surfaces and the same top surface of the square boss, a top plate located above the square boss and used for limiting the first limiting plate and the second limiting plate in the groove, the first limiting plate and the second limiting plate are both L-shaped and are hinged in the holes at the bottom of the groove through a hinge shaft, and both ends of the top plate are connected with the base plate.

[0007] Further, side steel sheets and top steel sheets matched with the first limiting plate or the second limiting plate are arranged on the side surfaces and the top surface of the square boss.

[0008] Further, a limiting block matched with the top steel sheet is arranged in the middle of the inner side of the top plate.

[0009] Further, a baffle is arranged on the inner side of the top plate to prevent the first limiting plate and the second limiting plate from rotating.

[0010] Further, a reinforcing rib is arranged on the top surface of the top plate.

[0011] Further, a limiting long slot for limiting the top of the hinge shaft is arranged on the inner side of the top plate.

[0012] Further, connecting plates are arranged at both ends of the top plate, and a plurality of connecting plates are arranged side by side, a connecting frame is fixed on the base plate, a plurality of connecting blocks on the connecting frame are inserted into slots formed by the connecting plates, and the connecting blocks are connected to the connecting blocks by connecting bolts.

[0013] The utility model discloses a groove and a boss matched with the groove are arranged at both ends of the track plate unit respectively, and limiting is realized through cooperation of the two and a limiting assembly, a boss does not need to be made on the base plate, the structure is simplified, and the manufacturing efficiency of the base plate can be improved; the groove is designed as a trapezoid, the boss is designed as a square, a limiting plate is arranged in the self-adaptive center of the groove, the limiting plate is hinged to the track plate unit, the limiting plate is initially unfolded outward, when the two track plate units are connected, the boss presses the limiting plate, the limiting plate is automatically folded to wrap the boss, and the top plate can be further matched to strengthen the connection between the two track plate units, limit the warping displacement of the track plate unit, and guarantee the smoothness of the ballastless track. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of the ballastless track structure of the utility model;

[0015] Figure 2 It is Figure 1 It is a schematic view of the structure after removing the top plate;

[0016] Figure 3 It is a schematic view of the limiting assembly in the ballastless track structure of the utility model;

[0017] Figure 4 It is a schematic view of the top plate in the ballastless track structure of the utility model;

[0018] Figure 5 It is a schematic view of the first limiting plate in the ballastless track structure of the utility model;

[0019] Figure 6 It is a schematic view of the track plate unit in the ballastless track structure of the utility model.

[0020] In the drawings, 1, base plate, 2, track plate unit, 2-1, groove, 2-2, square boss, 3, rail bearing table, 4-1, first limiting plate, 4-2, second limiting plate, 5, top plate, 5-1, limiting block, 5-2, limiting long slot, 6, baffle, 7, side steel sheet, 8, top steel sheet, 9, reinforcing rib, 10, hinged shaft, 11, connecting plate, 12, connecting frame, 12-1, connecting block, 13, connecting bolt. DETAILED DESCRIPTION

[0021] Referring to the drawings Figures 1-6 The utility model provides a ballastless track structure, including base plate 1 and track plate unit 2 on it, be equipped with rail bearing table 3 on track plate unit 2, and the rail is installed on rail bearing table 3. Anchor hole is equipped with in the middle part of track plate unit 2 to realize the connection with base plate 1 through bolt etc.

[0022] Referring to the drawings Figure 2 And 6 Track plate unit 2 is factory prefabricated, and on-site installation. The recess 2-1 of trapezoidal shape is provided at one end of the track plate unit 2, and the square boss 2-2 extending into the recess 2-1 of the adjacent track plate unit 2 is provided at the other end, and the limiting assembly is provided between the two adjacent track plate units 2. The two adjacent track plate units 2 are limited by the boss, the recess and the matching limiting assembly. The limiting assembly can allow the unit track plate to be oriented and stretched in the longitudinal direction, while limiting the transverse and vertical displacement of the end of the track plate unit 2.

[0023] Referring to the drawings Figures 2-5 The limiting assembly includes the first limiting plate 4-1 and the second limiting plate 4-2 arranged in the recess 2-1 and used for limiting different sides and the same top surface of the square boss 2-2, and the top plate 5 located above the square boss 2-2 and used for limiting the first limiting plate 4-1 and the second limiting plate 4-2 in the recess 2-1. The first limiting plate 4-1 and the second limiting plate 4-2 are both L-shaped and hinged in the hole at the bottom of the recess 2-1 through the hinged shaft 10, and both ends of the top plate 5 are connected with the base plate 1. The hinged shaft 10 is fixed on the outer side of the first limiting plate 4-1 and the second limiting plate 4-2, and the bottom of the hinged shaft 10 is limited in the hinged hole at the bottom of the recess 2-1, and the top of the hinged shaft 10 is limited in the limiting long slot 5-2 of the top plate 5, and the length of the hinged shaft 10 limited in the hinged hole at the bottom of the recess 2-1 is greater than the length of the hinged shaft 10 limited in the limiting long slot 5-2, so that when the top plate 5 is not installed and the two track plate units 2 are connected, the limiting plate can be stably limited in the recess 2-1.

[0024] Two limiting plates and the groove bottom of the groove 2-1 form a limiting cavity. The groove 2-1 is designed as a trapezoid, which makes the limiting plates be able to open outward at a certain angle in the initial state, so as to facilitate the square boss 2-2 to enter the limiting cavity. In the process of moving the two track plate units 2 to the preset position, the square boss 2-2 entering the limiting cavity will be in contact with the inner side of the limiting plate, so as to make the limiting plate rotate inward, thereby making the limiting cavity shrink, and the two limiting plates shrink inward and wrap the square boss 2-2. At this time, there is still a certain angle between the limiting plate 4 and the square boss 2-2, so manually rotating the limiting plate 4 to completely wrap the square boss 2-2, and finally installing the top plate 5 to realize complete limiting, thereby strengthening the connection between the two track plates, limiting the warping displacement of the track plate, and ensuring the smoothness of the ballastless track.

[0025] The depth of the groove 2-1 is greater than or equal to the thickness of the square boss 2-2, that is, after the two adjacent track plate units 2 are installed, the bottom surface of the square boss 2-2 and the groove bottom of the groove 2-1 are in a gap structure; or steel sheets are arranged on the bottom surface of the square boss 2-2 and the groove bottom of the groove 2-1, so that after installation, the two are in contact to facilitate expansion and contraction sliding.

[0026] Referring to the drawings, Figure 6 The side surface and the top surface of the square boss 2-2 are respectively provided with a side surface steel sheet 7 and a top surface steel sheet 8 matched with the limiting plate 4, so as to realize the relative sliding between the square boss 2-2 and the limiting plate 4. In addition, the top surface of the end portion with the groove 2-1 is also provided with a steel sheet matched with the inner side of the top plate 6, so as to reduce the resistance when the track plate unit 2 is oriented and expanded.

[0027] Referring to the drawings, Figure 4 A limiting block 5-1 matched with the top surface steel sheet 8 is arranged in the middle of the inner side of the top plate 5, so as to strengthen the limiting of the square boss 2-2.

[0028] Referring to the drawings, Figures 2-4 A baffle 6 for preventing the limiting plate from rotating is arranged on the inner side of the top plate 5. The baffle 6 is provided with two baffle plates corresponding to the two limiting plates. After manually rotating the limiting plate 4 to completely wrap the square boss 2-2, the two baffle plates 6 are respectively located on the outer side of the corresponding limiting plate when the top plate 5 is installed. Such design makes the track plate unit 2 have only one end of the square boss 2-2 capable of expansion and contraction along the limiting cavity, and the other end of the track plate unit 2 with the groove 2-1 can also only expand and contract between the square boss 2-2 and the baffle 6 under the action of the limiting plate.

[0029] Referring to the drawings, Figure 3 A reinforcing rib 9 is arranged on the top surface of the top plate 5, so as to strengthen the structural strength of the top plate 5.

[0030] Referring to the drawings, Figure 4The inner side of the top plate 5 is provided with a limiting long slot 5-2 for limiting the top of the hinged shaft 10, the limiting plate 4 can be limited without affecting the longitudinal expansion of the track plate unit 2.

[0031] The two ends of the top plate 5 are provided with connecting plates 11, and the connecting plates 11 are arranged side by side and provided with a plurality of connecting plates 11. The connecting plate 11 is located on the outer side of the track plate unit 2 with a groove 2-1 at one end, which can also limit the transverse displacement of this end. Specifically, steel sheets matched with the connecting plate 11 can also be arranged on the side surface of the track plate unit 2. In the embodiment, the connecting plate 11 is provided with 3. The connecting frame 12 is fixed on the base plate 1 by anchor bolts, and the plurality of connecting blocks 12-1 on the connecting frame 12 are inserted into the slots formed by the plurality of connecting plates 11 and connected to the connecting blocks 12-1 by connecting bolts 13. In the embodiment, the connecting block 12-1 is provided with 2. The connecting bolt 13 passes through the connecting plate 11 and the connecting block 12-1 in turn and is screwed with the last connecting plate 11.

[0032] The above-mentioned embodiments are only used to illustrate the technical ideas and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot be limited to the patent range of the present application only by the above-mentioned embodiments, that is, any equivalent changes or modifications made according to the spirit disclosed by the present application still fall within the patent range of the present application.

Claims

1. A ballastless track structure comprising a base slab (1) and track slab units (2) located thereon, the track slab units (2) being provided with rail seats (3) on which rails are mounted, characterized in that: The track plate unit (2) is provided with a trapezoidal recess (2-1) at one end and a square-shaped protrusion (2-2) extending into the recess (2-1) of the adjacent track plate unit (2) at the other end; A limiting assembly is arranged between the two adjacent track plate units (2), which comprises a first limiting plate (4-1) and a second limiting plate (4-2) arranged in the recess (2-1) and used for limiting different side faces and the same top face of the square-shaped protrusion (2-2), a top plate (5) arranged above the square-shaped protrusion (2-2) and used for limiting the first limiting plate (4-1) and the second limiting plate (4-2) in the recess (2-1), the first limiting plate (4-1) and the second limiting plate (4-2) are both L-shaped and are hinged in the holes at the bottom of the recess (2-1) by means of a hinge shaft (10), and both ends of the top plate (5) are connected with the base plate (1).

2. The ballastless track structure according to claim 1, characterized in that: The side face and the top face of the square-shaped protrusion (2-2) are respectively provided with a side face steel sheet (7) and a top face steel sheet (8) matched with the first limiting plate (4-1) or the second limiting plate (4-2).

3. A ballastless track structure according to claim 2, characterized in that: A limiting block (5-1) matched with the top face steel sheet (8) is arranged at the middle of the inner side of the top plate (5).

4. The ballastless track structure according to claim 1, characterized in that: A baffle (6) is arranged at the inner side of the top plate (5) to prevent the first limiting plate (4-1) and the second limiting plate (4-2) from rotating.

5. The ballastless track structure according to claim 1, characterized in that: A reinforcing rib (9) is arranged at the top face of the top plate (5).

6. The ballastless track structure according to claim 1, characterized in that: A limiting long groove (5-2) is arranged at the inner side of the top plate (5) to limit the top of the hinge shaft (10).

7. Ballastless track structure according to any of claims 1 to 6, characterized in that A connecting plate (11) is arranged at both ends of the top plate (5), the connecting plate (11) is provided with multiple connecting plates arranged side by side, a connecting frame (12) is fixed on the base plate (1), multiple connecting blocks (12-1) on the connecting frame (12) are inserted into the grooves formed by the multiple connecting plates (11) and are connected with the connecting blocks (12-1) by means of connecting bolts (13).

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