Assembled point type supporting elastic sleeper

Abstract

According to the assembled point type supporting elastic sleeper, two mounting grooves used for mounting high-strength damping plates are formed in the bottom face of a concrete sleeper, connecting sleeves with pipe openings located in the groove faces of the mounting grooves are prefabricated in the concrete sleeper, inner holes of the connecting sleeves are threaded holes, the upper ends of the high-strength damping plates are arranged in the mounting grooves in a matched mode, and the lower ends of the high-strength damping plates are connected with the connecting sleeves. The high-strength damping plate is detachably fixed to the bottom of the concrete sleeper through bolts which penetrate through the counter bores in the high-strength damping plate and are connected with the threaded holes in the connecting sleeves in a matched mode. According to the utility model, the connecting sleeve of which the inner hole is the threaded hole and the orifice is positioned on the groove surface is prefabricated in the mounting groove on the bottom surface of the concrete sleeper, and the high-strength damping plate is detachably fixed at the bottom of the concrete sleeper by adopting the bolt which penetrates through the counter bore on the high-strength damping plate and is adaptively connected with the threaded hole of the connecting sleeve; the problems that a traditional sleeper is large in noise and frequent to replace and maintain due to the fact that the service life of the sleeper and the service life of an elastic cushion are not matched are solved, connection is convenient and fast, replacement difficulty is lowered, and later maintenance and replacement are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway tracks, and in particular relates to an assembled point-supported elastic sleeper. Background Art

[0002] With the development of railway transportation, the requirements for the stability, smoothness, vibration and noise reduction of track structures are constantly increasing. When facing the vibration caused by high-speed train operation, traditional sleepers have a series of shortcomings, such as unsatisfactory vibration reduction effect, inability to adapt well to the dynamic impact of train operation, and the interaction between trains and sleepers may produce loud noises. After long-term use, many diseases may occur, requiring frequent maintenance and replacement, and replacement is difficult and has high requirements for the roadbed. Existing elastic sleepers generally adopt integrated molding or bonding, but the life of sleepers does not match the life of elastic pads, resulting in functional failure and difficulty in replacement. Therefore, it is necessary to improve the above problems. Utility Model Content

[0003] The technical problem solved by the utility model is as follows: to provide an assembled point-support elastic sleeper, to optimize the installation structure of a high-strength damping plate on a concrete sleeper, by prefabricating a connecting sleeve with a threaded hole as an inner hole in the installation groove on the bottom surface of the concrete sleeper and with the hole opening located on the groove surface, and by using bolts that pass through the countersunk holes on the high-strength damping plate and adapt to the threaded holes of the connecting sleeve to detachably fix the high-strength damping plate to the bottom of the concrete sleeper, thereby solving the problem of frequent replacement and maintenance caused by the high noise of traditional sleepers and the mismatch in the life of the sleepers and elastic pads. The connection is convenient and quick, which reduces the difficulty of replacement and facilitates later maintenance and replacement.

[0004] The technical solution adopted by the utility model is: an assembled point-support elastic sleeper, comprising a concrete sleeper and a high-strength damping plate, wherein two mounting grooves for mounting the high-strength damping plate are arranged on the bottom surface of the concrete sleeper, a connecting sleeve with a pipe opening located on the groove surface of the mounting groove is prefabricated in the concrete sleeper, and the inner hole of the connecting sleeve is a threaded hole, the upper end of the high-strength damping plate is adapted to the mounting groove, and bolts that pass through the countersunk holes on the high-strength damping plate and are adapted to be connected with the threaded holes of the connecting sleeve removably fix the high-strength damping plate to the bottom of the concrete sleeper.

[0005] The high-strength damping plate adopts a structure in which a rubber plate and a steel plate in the middle of the upper end surface of the rubber plate are vulcanized and integrated into one, the rubber plate is in an inverted T-shaped structure, and the bottom surface of the rubber plate is chamfered all around.

[0006] Furthermore, the step surface of the high-strength damping plate abuts against the bottom surface of the concrete sleeper.

[0007] Furthermore, two rail placement grooves are symmetrically arranged on the upper end surface of the concrete sleeper, and connecting sleeves with pipe openings located on the groove surfaces of the rail placement grooves are also prefabricated in the rail placement grooves.

[0008] Furthermore, the outer circumferential wall of the connecting sleeve is a sawtooth, triangular tooth or trapezoidal tooth structure.

[0009] The advantages of this utility model compared with the prior art:

[0010] 1. This technical solution optimizes the installation structure of the high-strength damping plate on the concrete sleeper. By prefabricating a connecting sleeve with a threaded hole as the inner hole in the installation groove on the bottom surface of the concrete sleeper and the hole opening located on the groove surface, the high-strength damping plate is detachably fixed to the bottom of the concrete sleeper by bolts that pass through the countersunk holes on the high-strength damping plate and the threaded holes of the connecting sleeve. This solves the problem of frequent replacement and maintenance caused by the high noise of traditional sleepers and the mismatch between the life of sleepers and elastic pads. The connection is convenient and quick, which reduces the difficulty of replacement and facilitates later maintenance and replacement.

[0011] 2. This technical solution adopts a high-strength damping plate that is vulcanized and combined with a rubber plate and a steel plate in the middle of the upper end of the rubber plate to improve the strength of the damping plate, improve impact resistance, and prolong service life;

[0012] 3. This technical solution adopts the combination of rubber vulcanization and steel plate to make the bottom surface chamfered to form an umbrella skirt, which prevents the outer edge of the rubber plate from warping during installation and prevents gravel from entering the installation groove;

[0013] 4. This technical solution has a simple structure, is easy to disassemble and assemble, and has good vibration reduction and impact resistance effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the high-strength damping plate of the utility model;

[0016] Figure 3 This is a cross-sectional view of the high-strength damping plate of the utility model. DETAILED DESCRIPTION

[0017] The following will be combined with the embodiment of the present utility model Figure 1-3 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0019] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising 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 device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0020] An assembled point-supported elastic sleeper, such as Figure 1-3 As shown, it includes a concrete sleeper 1 and a high-strength damping plate 2. Two mounting grooves 3 for mounting the high-strength damping plate 2 are provided on the bottom surface of the concrete sleeper 1. A connecting sleeve 4 with a pipe mouth located on the groove surface of the mounting groove 3 is prefabricated in the concrete sleeper 1, and the inner hole of the connecting sleeve 4 is a threaded hole. The upper end of the high-strength damping plate 2 is adapted to the mounting groove 3, and the bolts 5 that pass through the countersunk holes 6 on the high-strength damping plate 2 and are adapted to be connected to the threaded holes of the connecting sleeve 4 removably fix the high-strength damping plate 2 to the bottom of the concrete sleeper 1.

[0021] The specific structure of the high-strength damping plate 2 is as follows: the high-strength damping plate 2 adopts a structure in which a rubber plate 2-1 and a steel plate 2-2 in the middle of the upper end surface of the rubber plate 2-1 are vulcanized and combined into an integrated structure. The rubber plate 2-1 is an inverted T-shaped structure, and the bottom surface of the rubber plate 2-1 is chamfered on all sides to form an umbrella skirt; specifically, the step surface of the high-strength damping plate 2 is against the bottom surface of the concrete sleeper 1; it is manufactured by combining rubber vulcanization with a steel plate, and the outer edge of the rubber plate 2-1 is prevented from warping during installation, and the bottom surface is chamfered on all sides to form an umbrella skirt, which prevents gravel from entering the installation groove 3 after installation.

[0022] In order to conveniently and quickly complete the fixing of the rails on the concrete sleeper 1, two rail placement grooves 7 are symmetrically provided on the upper end surface of the concrete sleeper 1, and the rail placement groove 7 is also prefabricated with a connecting sleeve 4 with the pipe opening located on the groove surface of the rail placement groove 7.

[0023] In this structure, the outer circumferential wall of the connecting sleeve 4 is a sawtooth, triangular tooth or trapezoidal tooth structure, which makes the connecting sleeve 4 embedded in the concrete sleeper 1 have good anti-slip properties and stability, ensuring the connection reliability.

[0024] The technical solution has a simple structure, is easy to disassemble and assemble, and has a good vibration reduction and impact resistance effect.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An assembled point-supported elastic sleeper, characterized in that: The invention comprises a concrete rail sleeper (1) and a high-strength damping plate (2), wherein two mounting grooves (3) for mounting the high-strength damping plate (2) are provided on the bottom surface of the concrete rail sleeper (1), a connecting sleeve (4) with a pipe opening located on the groove surface of the mounting groove (3) is prefabricated in the concrete rail sleeper (1), and the inner hole of the connecting sleeve (4) is a threaded hole, the upper end of the high-strength damping plate (2) is adapted to be in the mounting groove (3), and a bolt (5) passing through a countersunk hole (6) on the high-strength damping plate (2) and adapted to be connected with the threaded hole of the connecting sleeve (4) is used to detachably fix the high-strength damping plate (2) to the bottom of the concrete rail sleeper (1).

2. The assembled point-supported elastic sleeper according to claim 1 is characterized in that: The high-strength damping plate (2) adopts a structure in which a rubber plate (2-1) and a steel plate (2-2) in the middle of the upper end surface of the rubber plate (2-1) are vulcanized and integrated into one body; the rubber plate (2-1) is in an inverted T-shaped structure, and the bottom surface of the rubber plate (2-1) is chamfered on all sides.

3. The assembled point-supported elastic sleeper according to claim 2 is characterized in that: The step surface of the high-strength damping plate (2) abuts against the bottom surface of the concrete sleeper (1).

4. The assembled point-supported elastic sleeper according to claim 1, characterized in that: The upper end surface of the concrete rail sleeper (1) is symmetrically provided with two rail placement grooves (7), and the rail placement grooves (7) are also prefabricated with connection sleeves (4) with the pipe openings located on the groove surfaces of the rail placement grooves (7).

5. The assembled point-supported elastic sleeper according to any one of claims 1 to 4, characterized in that: The outer circumferential wall of the connecting sleeve (4) is a sawtooth-shaped, triangular-tooth-shaped, or trapezoidal-tooth-shaped structure.

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