Fabricated track structure

Abstract

The utility model discloses an assembly type track structure, and belongs to the technical field of tracks. An assembly type rail structure comprises a base installed on a sleeper, a first magnet and a second magnet are arranged in the base, a rail is arranged at the top of the second magnet, rail claws are arranged on the outer side of the rail and the outer side of the base, and the rail claws and the base are in tensioning connection through fastening bolts. The fastening bolt comprises a frustum structure located on a screw rod, and conical groove structures corresponding to the frustum structure are formed in the two rail claws in a penetrating mode. The track claw has the advantages that a gap between the track claw and the track is eliminated, and abrasion between the track and the track claw is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to track technical field especially relates to a fabricated track structure. BACKGROUND

[0002] Track refers to the route that is paved with strip steel for the running of trains, trams and the like. With the increase in railway traffic volume, and the increase in locomotive axle load and running speed, many new types of tracks have emerged, such as jointless track, wide-sleeper track, monolithic track bed track and slab track.

[0003] In the utility model with the publication number CN214143062U, a kind of fabricated track structure, including sleeper, the top of sleeper is fixedly installed with rail, the top of rail is equipped with rail surface, the bottom of rail is equipped with rail bottom, clamping device is installed in the both sides of rail, the middle part of clamping device is equipped with fixed bolt, the top of clamping device is located in the both sides of rail bottom and is equipped with clamping rail claw, the bottom of rail is equipped with fixed base. The fabricated track structure, by being provided with rail on sleeper, and the clamping device that can clamp rail bottom, by the setting of clamping device, can quickly install and disassemble for rail device, guarantee when being able to improve construction efficiency during rail construction, and do not need to repeatedly install and disassemble for multiple bolts, can save manual energy, so compared with traditional track, the fabricated track structure that the utility model puts forward has greater superiority.

[0004] The above scheme has the following defects in the dismounting process: the rail is connected with the fixed base by the clamping device, the clamping device is fastened along the horizontal direction by the fixed bolt, the rail is clamped only in the horizontal direction, no pressure is provided in the vertical direction, it is difficult to ensure that the rail is tightly fitted between the clamping rail claw in the vertical direction, and a gap may be left between the clamping rail claw and the top of the rail bottom. At the same time, since the weight of the train is much greater than that of the rail, when the train passes, the rail is displaced and pressed downward on the magnet after being pressed downward on the rail, and the gap between the rail and the clamping rail claw in the vertical direction is further increased. After the train passes, the rail restores the elastic deformation and collides with the clamping rail claw, which may cause damage to the clamping device and increase the wear of the rail, which is not conducive to the long-term stable use of the rail. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem of easy wear between the rail and the clamping device in the fabricated track in the prior art, and provides a fabricated track structure.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] An assembled track structure, comprising a base mounted on a sleeper, a first magnet and a second magnet arranged inside the base, a rail arranged on the top of the second magnet, track claws arranged on the outer side of the rail and the base, the track claws and the base being connected through a fastening bolt, the fastening bolt comprising a conical structure arranged on a screw rod, and a conical groove structure arranged on the two track claws and corresponding to the conical structure.

[0008] Further, the conical structure comprises a first clamping block arranged at one end close to the bolt head, the radial dimension of the end close to the bolt head being larger than that of the end away from the bolt head, and the conical groove structure comprises a first through groove corresponding to the first clamping block.

[0009] Further, the conical structure further comprises a second clamping block arranged at one end close to the nut, the radial dimension of the end close to the nut being larger than that of the end away from the nut, and the conical groove structure comprises a second through groove corresponding to the second clamping block.

[0010] Further, a bolt hole for passing the screw rod is arranged on the base, and the radial dimension of the end of the first through groove and the second through groove close to the base is larger than that of the bolt hole.

[0011] Further, the difference between the radial dimension of the end of the first through groove and the second through groove close to the base and that of the bolt hole is smaller than the maximum distance between the bottom of the rail and the top of the base.

[0012] Further, the first clamping block is a conical structure, and the first clamping block is integrally formed with the bolt head and the screw rod.

[0013] Further, the second clamping block is a pyramid structure, and the second clamping block is integrally formed with the nut.

[0014] Further, the axial dimension of the conical structure is smaller than that of the conical groove structure.

[0015] Compared with the prior art, the assembled track structure has the following beneficial effects:

[0016] The assembled track structure, when in use, the fastening bolt passes through the track claw and the base, and when the fastening bolt is tightened, the conical structure is driven by the fastening bolt to extrude the conical groove structure, the track claw is forced in the horizontal direction and the vertical direction, the rail is clamped from the horizontal direction by the track claw, and the rail is pressed downward from the vertical direction, which has the effects that the track claw is closely combined with the rail, the gap is reduced, the gap reserved between the rail and the top of the base is reduced, and the gap between the rail and the track claw after the rail is pressed to the limit is reduced, so that the impact degree of the rail after the rail is restored to the original state is reduced, and the wear is reduced.

[0017] Other advantages, objects, and features of the present application will be apparent to those skilled in the art upon reading this specification, and will be apparent in certain embodiments of the present application. In certain embodiments, the present application will be apparent from the description, or can be learned by the practice of the present application. Furthermore, variations and modifications of the present application can be made based on the description set forth herein. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 is a schematic diagram of the internal structure of the base in the side view direction;

[0020] Figure 3 is a schematic diagram of the Figure 2 is a schematic diagram of the structure of part A;

[0021] Figure 4 is a schematic diagram of the base and the clamping jaw structure of the present application;

[0022] Figure 5 is a schematic diagram of the fastening bolt and the clamping jaw of the present application;

[0023] Figure 6 is a schematic diagram of the position effect of the fastening bolt during installation.

[0024] In the drawings:

[0025] 1, rail; 2, sleeper; 3, base; 31, bolt hole; 4, track claw; 41, first through slot; 42, second through slot; 5, fastening bolt; 51, bolt head; 52, screw rod; 53, nut; 54, first clamping block; 55, second clamping block; 6, magnet slot; 7, first magnet; 8, second magnet. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application.

[0027] Reference Figures 1-6The utility model discloses an assembled track structure, including the base 3 of installation on the sleeper 2, the inside processing of base 3 has the magnet slot 6 of top opening, the inside installation of magnet slot 6 has first magnet 7 and second magnet 8, second magnet 8 is located above, first magnet 7 is located below, and first magnet 7 and second magnet 8 are mutually repulsive, and the section of second magnet 8 is " " character type, so that second magnet 8 suspends in the top of magnet slot 6, and second magnet 8 and magnet slot 6 are engaged, and the top of second magnet 8 is protruding from magnet slot 6 upwards, and second magnet 8 can slide in magnet slot 6 along the vertical direction, and the top of second magnet 8 is installed with the rail 1.

[0028] In the initial state, second magnet 8 is affected by the repulsion of first magnet 7, and second magnet 8 is attached between the top of the inside of magnet slot 6, and the height difference between the top of second magnet 8 and the top of base 3 (i.e. the distance between the bottom of rail 1 and the top of base 3) is a first distance. When rail 1 is placed on the top of second magnet 8, second magnet 8 is affected by the gravity of rail 1 and is lowered in position. At this time, the height difference between the top of second magnet 8 and the top of base 3, i.e. the distance between the bottom of rail 1 and the top of base 3, is a second distance. When the train passes over rail 1, the position of rail 1 and second magnet 8 is further lowered. At this time, the height difference between the top of second magnet 8 and the top of base 3 is a third distance. The minimum value of the third distance is greater than 0.

[0029] Rail claws 4 are installed on the outside of rail 1 and base 3. Rail 1 has a rail head, a rail waist and a rail bottom from top to bottom. The upper part of rail claw 4 is buckled on the rail bottom of rail 1, and the lower part of rail claw 4 is attached to the outside of base 3. Rail claw 4 and base 3 are connected by a tensioning fastening bolt 5. The fastening bolt 5 includes a cone structure on a screw rod 52. Two rail claws 4 have a cone groove structure corresponding to the cone structure.

[0030] When the fastening bolt 5 is tightened, the cone structure simultaneously extrudes the cone groove structure, so that rail claw 4 is stressed in the horizontal direction and the vertical direction, and rail claw 4 compresses rail 1 in the horizontal direction and the vertical direction.

[0031] Specifically, when the fastening bolt 5 is tightened, the cone structure can extrude rail claw 4 downward, and rail claw 4 drives rail 1 and second magnet 8 to move downward. The height difference between the bottom of rail 1 or the top of second magnet 8 and the top of base 3 is a fourth distance, which is between the second distance and the third distance. That is, rail 1 moves from the second distance position to the fourth distance position. When the train passes, rail 1 moves from the fourth distance position to the third distance position. Compared with the prior art, the distance difference between the fourth position and the third position is significantly reduced, thereby reducing the impact and wear between rail 1 and rail claw 4 when rail 1 is reset.

[0032] The conical structure includes a first clamping block 54 located on the screw rod 52 near one end of the bolt head 51, and the radial dimension of the end close to the bolt head 51 is greater than that of the end away from the bolt head 51. Here, the first clamping block 54 and the second clamping block 55 have a small end close to one end of the base 3 and a large end away from the base 3. The conical groove structure includes a first through groove 41 corresponding to the first clamping block 54, that is, the first through groove 41 is also a corresponding conical groove structure.

[0033] The base 3 is provided with a bolt hole 31 for passing the screw rod 52, and the radial dimension of the end of the first through groove 41 and the second through groove 42 close to the base 3 is greater than that of the bolt hole 31, so that when the fastening bolt 5 is not inserted into the bolt hole 31 and the axis of the first through groove 41 and the second through groove 42 is not aligned with the bolt hole 31, the bolt hole 31 can still be completely exposed within the range of the first through groove 41 and the second through groove 42, so that the screw rod 52 can be easily inserted into the bolt hole 31.

[0034] After the rail claw 4 is placed on the rail 1, the fastening bolt 5 is inserted into the bolt hole 31. At this time, the height of the axis of the first through groove 41 is higher than that of the axis of the bolt hole 31, and the bolt hole 31 is located on the inner side of the small end of the first through groove 41. The screw rod 52 can be smoothly inserted into the bolt hole 31, and the first clamping block 54 also enters the inside of the first through groove 41. As shown in the specific embodiment, the bottom of the first clamping block 54 is in close contact with the bottom of the first through groove 41. When the fastening bolt 5 is tightened, the first clamping block 54 presses the rail claw 4 to the right and downward. Figure 5

[0035] The conical structure also includes a second clamping block 55 located on the screw rod 52 near one end of the nut 53, and the radial dimension of the end close to the nut 53 is greater than that of the end away from the nut 53. The conical groove structure includes a second through groove 42 corresponding to the second clamping block 55. The second clamping block 55 and the first clamping block 54 have the same part and different parts. The same part is that the second clamping block 55 presses the rail claw 4 on the other side in the horizontal and vertical directions under the cooperation of the screw rod 52 and the nut 53, so as to press the rail claw 4 on the other side to the rail 1 in the horizontal and vertical downward directions.

[0036] ​The radial dimension difference between the first through slot 41 and the second through slot 42 and the bolt hole 31 at one end of the base 3 is less than the maximum distance between the bottom of the rail 1 and the top of the base 3, and the maximum distance here refers to the second distance, that is, when the fastening bolt 5 is tightened, the first clamping block 54 is aligned with the first through slot 41, the second clamping block 55 is aligned with the second through slot 42, and the bottom of the rail 1 is lowered to the fourth distance position, there is still a distance between the bottom of the rail 1 and the top of the base 3, avoiding the case that the bottom of the rail 1 and the top of the base 3 are directly attached together.

[0037] The first clamping block 54 is a conical frustum structure, and the first clamping block 54 is integrally formed with the bolt head 51 and the screw rod 52. Compared with the first clamping block 54 as a separate part, the integrally formed structure reduces the number of parts and installation steps, and the conical frustum structure allows the first clamping block 54 to rotate synchronously with the screw rod 52 when it is in the first through slot 41.

[0038] The second clamping block 55 is a prismatic frustum structure, and the prismatic frustum structure here takes a hexagonal pyramid as an example. The second clamping block 55 is integrally formed with the hexagonal nut 53, which reduces the number of parts and the different parts of the second clamping block 55 and the first clamping block 54: it can also prevent the nut 53 from rotating freely. Without the help of other tools, only using a hexagonal wrench to tighten the fastening bolt 5 from one end of the bolt head 51 can tighten the screw rod 52 and the nut 53.

[0039] The axial dimension of the conical frustum structure is smaller than that of the conical groove structure, and the axial dimensions of the conical frustum structure and the conical groove structure are the same as the axial dimension of the screw rod 52, as shown in the figure. Figure 3 After the fastening bolt 5 is tightened, there is still a gap between the small head end of the first clamping block 54 and the side wall of the base 3, so as to avoid the case that the first clamping block 54 and the first through slot 41, and the second clamping block 55 and the second through slot 42 cannot be attached due to the abutment between the small head end of the first clamping block 54 and the second clamping block 55 and the side wall of the base 3.

[0040] Working principle: when in use, the rail 1 is laid on the top of the second magnet 8, then the rail claw 4 is buckled on the rail bottom of the rail 1, and finally the fastening bolt 5 is inserted into the bolt hole 31, the nut 53 is sleeved on the screw rod 52, and the fastening bolt 5 is tightened.

[0041] When the fastening bolt 5 is tightened, the first clamping block 54 is pressed downward to the side where the base 3 is located, and the second clamping block 55 is also pressed downward to the side where the base 3 is located, thereby driving the rail 1 to move downward by a predetermined distance, pre-pressing the rail 1, eliminating the gap between the rail claw 4 and the rail 1, and reducing the gap between the rail 1 and the rail claw 4 when the rail 1 is elastically deformed.

[0042] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical scope disclosed by the present application, and all of them should be covered within the protection scope of the present application.

[0043] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0044] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A prefabricated track structure, comprising a base (3) mounted on a sleeper (2), wherein a first magnet (7) and a second magnet (8) are disposed inside the base (3), a rail (1) is disposed on the top of the second magnet (8), and rail claws (4) are disposed on the outer sides of the rail (1) and the base (3), the rail claws (4) being tensioned to the base (3) by fastening bolts (5), characterized in that, The fastening bolt (5) comprises a conical structure on the screw rod (52), and the two rail claws (4) are provided with a conical groove structure corresponding to the conical structure.

2. The fabricated track structure of claim 1, wherein, The conical structure comprises a first clamping block (54) near one end of the bolt head (51), and the radial dimension of the end near the bolt head (51) is greater than that of the end away from the bolt head (51); the conical groove structure comprises a first through groove (41) corresponding to the first clamping block (54).

3. A fabricated track structure as claimed in claim 2, wherein, The conical structure further comprises a second clamping block (55) near one end of the nut (53), and the radial dimension of the end near the nut (53) is greater than that of the end away from the nut (53); the conical groove structure comprises a second through groove (42) corresponding to the second clamping block (55).

4. The fabricated track structure of claim 3, wherein, The base (3) is provided with a bolt hole (31) for penetrating the screw rod (52), and the radial dimension of the end of the first through groove (41) and the second through groove (42) near the base (3) is greater than that of the bolt hole (31).

5. A fabricated track structure according to claim 4, wherein, The radial dimension difference between the end of the first through groove (41) and the second through groove (42) near the base (3) and the bolt hole (31) is less than the maximum distance between the bottom of the rail (1) and the top of the base (3).

6. A fabricated track structure according to claim 5, wherein, The first clamping block (54) is a conical structure, and the first clamping block (54) is integrally formed with the bolt head (51) and the screw rod (52).

7. A fabricated track structure according to claim 6, wherein, The second clamping block (55) is a pyramid structure, and the second clamping block (55) is integrally formed with the nut (53).

8. The fabricated track structure of claim 1, wherein, The axial dimension of the conical structure is less than that of the conical groove structure.

Images