Combined vibration reduction elastic supporting block type track

Abstract

The utility model discloses a combined vibration reduction elastic supporting block type track which comprises a steel rail and a plurality of supporting blocks arranged at the bottom of the steel rail at intervals, each supporting block comprises a rubber cushion plate arranged at the bottom of the steel rail, and vibration reduction fasteners are arranged on the two sides of each rubber cushion plate in a clamped mode. The damping fasteners on the two sides make contact with the upper surfaces of the two side wings at the bottom of the steel rail correspondingly, elastic supporting blocks are arranged at the bottoms of the rubber cushion plate and the damping fasteners and fixedly arranged in rubber sleeve boots, iron cushion plates are arranged at the bottoms of the rubber sleeve boots, and the bottoms of the iron cushion plates are connected with the ground through a plurality of spring sleeves. When a train passes through the steel rail of the scheme, a part of energy generated by vibration of the steel rail is consumed through the vibration reduction fasteners and the rubber cushion plates, and the energy serves as the first vibration reduction layer; and the elastic supporting block and the steel springs serve as a second vibration reduction layer and a third vibration reduction layer correspondingly to restrain vibration of the steel rail, so that transmission of vibration energy of the steel rail is greatly reduced, and finally the purpose of reducing ground vibration is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of traffic vibration reduction and noise reduction, in particular to a combined vibration reduction elastic support block type track. Background Art

[0002] In the field of rail transit, elastic support block type ballastless track is one of the important types of ballastless track in my country. During its service, it is subjected to temperature loads, rain erosion and train cyclic dynamic loads, which cause the elastic support block type ballastless track to develop defects, such as cracks in the ballast plate, damage to the support blocks, gaps between the support blocks and the rubber boots, and dynamic empty suspension. There is a gap between the elastic support blocks and the rubber pads under the blocks, and the vibration impact under the train load is enhanced, resulting in a reduction or loss of excellent vibration reduction effect. When high-speed trains pass through residential areas at a speed of more than 200km / h, great environmental vibration and noise are generated, affecting people's daily lives. The laying of elastic support block type ballastless track alleviates this problem, but it still faces problems such as insufficient vibration reduction and complaints from residents along the line. Therefore, it is necessary to optimize the design of the elastic support block track structure to solve the above problems. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a combined vibration-damping elastic support block type track, which solves the problem that the elastic support block type track has insufficient vibration reduction and is prone to damage.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] Provided is a combined vibration-damping elastic support block type track, comprising a steel rail and a plurality of support blocks spaced apart at the bottom of the steel rail, the support block comprising a rubber pad arranged at the bottom of the steel rail, vibration-damping fasteners being clamped on both sides of the rubber pad, and the vibration-damping fasteners on both sides respectively contact the upper surfaces of the two side wings of the bottom of the steel rail, elastic support blocks being arranged at the bottom of the rubber pad and the vibration-damping fasteners, the elastic support blocks being fixedly arranged in a rubber boot, an iron pad being arranged at the bottom of the rubber boot, and the bottom of the iron pad being connected to the ground via a plurality of spring kits.

[0006] Furthermore, the vibration-damping fastener, the elastic support block, the rubber boot and the iron pad are all preset with through holes, and a sleeve is passed through the through hole and penetrates the vibration-damping fastener, the elastic support block, the rubber boot and the iron pad at the same time, and a spiral spike is passed through the sleeve and is used to connect the vibration-damping fastener, the elastic support block, the rubber boot and the iron pad as a whole.

[0007] Furthermore, a damping layer is provided on the contact surface between the vibration-damping fastener and the rail, and the damping layer is in close contact with the rail.

[0008] Furthermore, the rubber overboot is in a groove box shape, the side wall and the bottom of the elastic support block are bonded to the inner side wall and the bottom of the rubber overboot by universal glue, and the rubber overboot and the iron pad are bonded by universal glue.

[0009] Furthermore, the spring kit comprises a steel spring whose two ends are respectively connected to the iron pad and the ground, a sleeve is sleeved on the steel spring, and one end of the sleeve is fixed to the bottom of the iron pad.

[0010] Furthermore, the axial dimension of the sleeve is smaller than the axial dimension of the steel spring when it is under load compression, and the axial dimension of the sleeve is larger than the axial dimension of the steel spring when it is under extreme compression.

[0011] The beneficial effects of the utility model are:

[0012] 1. When a train passes over the rails of this scheme, the energy generated by the vibration of the rails is first consumed by the vibration-damping fasteners and rubber pads, where the vibration-damping fasteners and rubber pads serve as the first vibration-damping layer; while the elastic support blocks and a number of steel springs serve as the second and third vibration-damping layers respectively to suppress the vibration of the rails. The three-layer vibration-damping energy can greatly reduce the transmission of the vibration energy of the rails, and ultimately achieve the purpose of reducing ground vibration.

[0013] 2. The vibration-damping fasteners, elastic support blocks, rubber boots and iron pads of this solution are connected as a whole through spiral spikes, which are quick to disassemble and assemble for easy maintenance and replacement; at the same time, the occurrence of cracking, damage and dynamic empty hanging of various components is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the combined vibration-damping elastic support block track.

[0015] Figure 2 for Figure 1 End view of .

[0016] Figure 3 This is the distribution diagram of the steel spring on the iron pad.

[0017] Among them, 1. rails, 2. vibration-damping fasteners, 3. spiral spikes, 4. rubber pads, 5. elastic support blocks, 6. rubber boots, 7. iron pads, 8. sleeves, 9. damping layers, and 10. steel springs. DETAILED DESCRIPTION

[0018] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0019] like Figures 1 to 3 As shown, the combined vibration-damping elastic support block track of the present scheme comprises a rail 1 and a plurality of support blocks spaced apart at the bottom of the rail 1, the support block comprising a rubber pad 4 arranged at the bottom of the rail 1, vibration-damping fasteners 2 are clamped on both sides of the rubber pad 4, the vibration-damping fasteners 2 on both sides are respectively in contact with the upper surfaces of the two side wings at the bottom of the rail 1, and a damping layer 9 is arranged on the contact surface between the vibration-damping fastener 2 and the rail 1, and the damping layer 9 is tightly fitted with the rail 1; elastic support blocks 5 are arranged at the bottom of the rubber pad 4 and the vibration-damping fastener 2, the elastic support blocks 5 are fixedly arranged in a rubber boot 6 in a groove box shape, an iron pad 7 is arranged at the bottom of the rubber boot 6, and the bottom of the iron pad 7 is connected to the ground through a plurality of spring kits.

[0020] During the design, the side wall and bottom of the elastic support block 5 are bonded to the inner wall and bottom of the rubber boot 6 by universal glue, and the rubber boot 6 and the iron pad 7 are bonded by universal glue; at the same time, the vibration-damping fastener 2, the elastic support block 5, the rubber boot 6 and the iron pad 7 are all preset with through holes, and the through holes are penetrated by sleeves that penetrate the vibration-damping fastener 2, the elastic support block 5, the rubber boot 6 and the iron pad 7 at the same time. After the elastic support block 5, the rubber boot 6 and the iron pad 7 are firmly bonded, the spiral spikes 3 are penetrated in the sleeves, and the vibration-damping fastener 2, the elastic support block 5, the rubber boot 6 and the iron pad 7 are connected as a whole; thereby reducing the occurrence of cracking, damage and dynamic empty hanging of each component.

[0021] The several spring kits of the present scheme are evenly distributed at the bottom of the iron pad 7, so that the bottom center of gravity of the elastic support block 5 is stable and the stiffness is evenly distributed; the spring kit includes a steel spring 10 whose two ends are respectively connected to the iron pad 7 and the ground by screws, and a sleeve 8 is sleeved on the steel spring 10, and one end of the sleeve 8 is fixed to the bottom of the iron pad 7; and the axial dimension of the sleeve 8 is smaller than the axial dimension of the steel spring 10 when it is under load compression, and the axial dimension of the sleeve 8 is larger than the axial dimension of the steel spring 10 when it is at the limit compression, thereby protecting the steel spring 10 and preventing the steel spring 10 from failing due to overload.

[0022] When a train passes over the rail 1 of the present invention, a part of the energy generated by the vibration of the rail 1 is first consumed by the vibration-damping fastener 2 and the rubber pad 4, wherein the vibration-damping fastener 2 and the rubber pad 4 serve as the first vibration-damping layer; and the elastic support block 5 and a plurality of steel springs 10 serve as the second vibration-damping layer and the third vibration-damping layer respectively to suppress the vibration of the rail 1. The three-layer vibration-damping energy can greatly reduce the transmission of the vibration energy of the rail 1, thereby ultimately achieving the purpose of reducing ground vibration.

Claims

1. A combined vibration-damping elastic support block track, characterized in that: It comprises a rail and a plurality of support blocks spaced apart at the bottom of the rail, wherein the support block comprises a rubber pad arranged at the bottom of the rail, vibration-damping fasteners are clamped on both sides of the rubber pad, and the vibration-damping fasteners on both sides are respectively in contact with the upper surfaces of the two side wings of the bottom of the rail, an elastic support block is arranged at the bottom of the rubber pad and the vibration-damping fastener, and the elastic support block is fixedly arranged in a rubber boot, an iron pad is arranged at the bottom of the rubber boot, and the bottom of the iron pad is connected to the ground through a plurality of spring sets.

2. The combined vibration-damping elastic support block track according to claim 1, characterized in that: The vibration-damping fastener, elastic support block, rubber boot and iron pad are all preset with through holes, and the through holes are penetrated by sleeves that penetrate the vibration-damping fastener, elastic support block, rubber boot and iron pad at the same time, and the sleeves are penetrated by spiral spikes for connecting the vibration-damping fastener, elastic support block, rubber boot and iron pad as a whole.

3. The combined vibration-damping elastic support block track according to claim 1, characterized in that: A damping layer is arranged on the contact surface between the vibration-damping fastener and the rail, and the damping layer is in close contact with the rail.

4. The combined vibration-damping elastic support block track according to claim 1, characterized in that: The rubber boot is in a groove box shape, the side wall and the bottom of the elastic support block are bonded to the inner side wall and the bottom of the rubber boot by universal glue, and the rubber boot and the iron pad are bonded by universal glue.

5. The combined vibration-damping elastic support block track according to claim 1, characterized in that: The spring kit comprises a steel spring whose two ends are respectively connected to the iron pad and the ground; a sleeve is sleeved on the steel spring, and one end of the sleeve is fixed to the bottom of the iron pad.

6. The combined vibration-damping elastic support block track according to claim 5, characterized in that: The axial dimension of the sleeve is smaller than the axial dimension of the steel spring when it is under load compression, and the axial dimension of the sleeve is larger than the axial dimension of the steel spring when it is under limit compression.

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