High-strength elastic backing plate for railway

Abstract

The utility model discloses a high-strength elastic backing plate for a railway, which relates to the technical field of railway backing plates and comprises a backing plate body, a buffer layer is arranged in the backing plate body, a rubber backing plate is arranged at the bottom of the buffer layer, and a plastic backing plate is arranged at the bottom of the rubber backing plate. The bottom of the plastic base plate is provided with a filler layer, the top of the base plate body is provided with a buffer mechanism, the top of the buffer layer is provided with a springback slowing mechanism, and the buffer mechanism comprises a buffer plate, a damping air bag and a pressure stabilizing block. Accordingly, the effects of buffering and pressure dispersing on the base plate body can be achieved through cooperation of the bearing layer, the telescopic cylinders, the telescopic rods, the buffering springs and other assemblies, meanwhile, the effect of further buffering and damping can be achieved through cooperation of the damping air bags and the pressure stabilizing blocks, and the high-strength elasticity of the base plate is increased so that the service life of the base plate can be prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway pads, in particular to a high-strength elastic pad for railways. Background Art

[0002] Railway pads are pads installed between the switch guardrail and the switch sleeper to provide a firm connection between the guardrail and the running rail (basic rail) to ensure the width of the guardrail wheel flange groove and driving safety. The guardrail pad is one of the important parts of the track. Its function is to ensure that the vehicle can pass through the switch switch part or bridge and other special areas smoothly without derailment accidents.

[0003] The utility model with publication number CN213708991U discloses a high-strength elastic iron pad for railways, including a pad body, a buffer layer fixedly connected inside the pad body, three shock-absorbing blocks fixedly connected to the top of the buffer layer, the tops of the three shock-absorbing blocks are fixedly connected to a first buffer rod, and the outer surfaces of the three first buffer rods are movably connected to shock-absorbing springs. In the above application document, gravity can be buffered by the buffer layer to avoid the pad body from breaking due to excessive gravity. The first buffer rod is fixedly connected to the top of the shock-absorbing block. Because the first buffer rod is retractable and the shock-absorbing spring is movably connected to the outer surface of the first buffer rod, when gravity applies pressure from the buffer steel plate, the shock-absorbing spring is squeezed, causing the first buffer rod to be squeezed downward, thereby dispersing the gravity. The effect of dispersing gravity only by the shock-absorbing spring is not good enough, and long-term use may lead to the possibility of breaking of the pad body. Utility Model Content

[0004] The utility model aims to provide a high-strength elastic pad for railways, which solves the existing problems.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a high-strength elastic pad for railways, comprising a pad body, a buffer layer is arranged inside the pad body, a rubber pad is arranged at the bottom of the buffer layer, a plastic pad is arranged at the bottom of the rubber pad, a filler layer is arranged at the bottom of the plastic pad, a buffer mechanism is arranged at the top of the pad body, a rebound reduction mechanism is arranged at the top of the buffer layer, the buffer mechanism comprises a buffer plate, a shock-absorbing airbag and a pressure-stabilizing block, the bottom of the buffer plate is fixedly connected to the top of the buffer layer, the top of the buffer plate is fixedly connected to a telescopic cylinder, the inside of the telescopic cylinder is slidably connected to a telescopic rod, the top of the telescopic rod is fixedly connected to a load-bearing plate, a buffer spring is sleeved on the surface of the telescopic cylinder, and the bottoms of the shock-absorbing airbag and the pressure-stabilizing block are both fixedly connected to the top of the buffer layer.

[0007] Furthermore, the load-bearing plate is square in shape as a whole, and in an initial state, the load-bearing plate protrudes from the top of the pad body. When the pad body is subjected to gravity, it will first contact the load-bearing plate and drive the load-bearing plate to move downward.

[0008] Furthermore, in the initial state, both ends of the buffer spring respectively contact the top of the buffer plate and the bottom of the load-bearing plate. The downward movement of the load-bearing plate will squeeze the buffer spring, and the buffer spring will absorb the impact force and gradually tighten.

[0009] Furthermore, the top of the shock-absorbing airbag is in conflict with the bottom of the load-bearing plate in the initial state, and the inner side of the pressure stabilizing block is in contact with the outer surface of the shock-absorbing airbag. When the load-bearing plate moves downward, it will squeeze the shock-absorbing airbag. The pressure stabilizing block can make the shock-absorbing airbag be compressed and deformed more evenly.

[0010] Furthermore, the rebound reduction mechanism includes a support plate and a connecting block, the bottom of the support plate is fixedly connected to the top of the buffer layer, the side of the support plate is fixedly connected with a deceleration block, the top of the connecting block is fixedly connected to the bottom of the load-bearing plate, the side of the connecting block is rotatably connected with a rotating shaft, the side of the rotating shaft is fixedly connected with a contact rod, the top of the contact rod is fixedly connected with an elastic rope, the end of the elastic rope away from the contact rod is fixedly connected to the side of the connecting block, and the side of the connecting block is fixedly connected with a limiting rod.

[0011] Furthermore, the length of the contact rod is greater than the distance from the side of the rotating shaft to the speed reduction block, the top of the limiting rod is close to the bottom of the contact rod, and the contact rod will contact the speed reduction block when moving downward, and the limiting rod prevents the contact rod from deflecting downward.

[0012] Furthermore, the deceleration block is in a semi-cylindrical shape as a whole, and is made of rubber. When the contact rod is squeezed by the semi-cylindrical rubber deceleration block, resistance is generated.

[0013] The utility model has the following beneficial effects:

[0014] The utility model is provided with a rebound-mitigating mechanism, thereby achieving the effect of buffering and dispersing pressure on the pad body through the cooperation of components such as the load-bearing layer, the telescopic cylinder, the telescopic rod, and the buffer spring. At the same time, the cooperation of the shock-absorbing airbag and the pressure-stabilizing block can further achieve the effect of buffering and shock reduction, thereby increasing the high-strength elasticity of the pad to extend the life of the pad.

[0015] The utility model is provided with a rebound-reducing mechanism, so that the speed and amplitude of the load-bearing plate rebounding upward and restoring after the buffer spring absorbs impact force and tightens can be slowed down through the cooperation of components such as the contact rod, the limiting rod, and the deceleration block, thereby preventing the load-bearing plate from bouncing back and forth up and down, and further improving the buffering and shock-absorbing effect.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a three-dimensional cross-sectional view of the overall structure of the utility model;

[0020] Figure 3 It is a three-dimensional schematic diagram of the overall structure of the buffer mechanism of the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of the partial structure of the buffer mechanism of the utility model;

[0022] Figure 5 It is a three-dimensional schematic diagram of the structure of the rebound mitigation mechanism of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Pad body; 2. Buffer layer; 3. Rubber pad; 4. Plastic pad; 5. Filling layer; 6. Buffer mechanism; 61. Buffer plate; 62. Telescopic cylinder; 63. Telescopic rod; 64. Load-bearing plate; 65. Buffer spring; 66. Shock-absorbing airbag; 67. Pressure stabilizing block; 7. Rebound reduction mechanism; 71. Support plate; 72. Speed ​​reduction block; 73. Connecting block; 74. Rotating shaft; 75. Contact rod; 76. Elastic rope; 77. Limiting rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to 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 the embodiments. 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.

[0026] See also Figure 1-5The utility model is a high-strength elastic pad for railways, comprising a pad body 1, a buffer layer 2 is arranged inside the pad body 1, a rubber pad 3 is arranged at the bottom of the buffer layer 2, a plastic pad 4 is arranged at the bottom of the rubber pad 3, a filler layer 5 is arranged at the bottom of the plastic pad 4, a buffer mechanism 6 is arranged at the top of the pad body 1, a rebound reduction mechanism 7 is arranged at the top of the buffer layer 2, the buffer mechanism 6 comprises a buffer plate 61, a shock-absorbing airbag 66 and a pressure stabilizing block 67, the bottom of the buffer plate 61 is fixedly connected to the top of the buffer layer 2, the top of the buffer plate 61 is fixedly connected to a telescopic cylinder 62, the inside of the telescopic cylinder 62 is slidably connected to a telescopic rod 63, the top of the telescopic rod 63 is fixedly connected to a load-bearing plate 64, the surface of the telescopic cylinder 62 is sleeved with a buffer spring 65, and the bottoms of the shock-absorbing airbag 66 and the pressure stabilizing block 67 are both fixedly connected to the top of the buffer layer 2.

[0027] The load-bearing plate 64 is square in shape as a whole, and in the initial state, the load-bearing plate 64 protrudes from the top of the pad body 1. When the pad body 1 is subjected to gravity, it will first contact the load-bearing plate 64 and drive the load-bearing plate 64 to move downward.

[0028] In the initial state, both ends of the buffer spring 65 respectively contact the top of the buffer plate 61 and the bottom of the load-bearing plate 64. The downward movement of the load-bearing plate 64 will squeeze the buffer spring 65. At this time, the buffer spring 65 will absorb the impact force and gradually tighten.

[0029] In the initial state, the top of the shock-absorbing airbag 66 is in conflict with the bottom of the load-bearing plate 64, and the inner side of the pressure stabilizing block 67 is in contact with the outer surface of the shock-absorbing airbag 66. When the load-bearing plate 64 moves downward, it will squeeze the shock-absorbing airbag 66. The pressure stabilizing block 67 can make the shock-absorbing airbag 66 more evenly compressed and deformed.

[0030] The rebound reduction mechanism 7 includes a support plate 71 and a connecting block 73. The bottom of the support plate 71 is fixedly connected to the top of the buffer layer 2. The side of the support plate 71 is fixedly connected with a speed reduction block 72. The top of the connecting block 73 is fixedly connected to the bottom of the load-bearing plate 64. The side of the connecting block 73 is rotatably connected with a rotating shaft 74. The side of the rotating shaft 74 is fixedly connected with a contact rod 75. The top of the contact rod 75 is fixedly connected with an elastic rope 76. The end of the elastic rope 76 away from the contact rod 75 is fixedly connected to the side of the connecting block 73. The side of the connecting block 73 is fixedly connected with a limiting rod 77.

[0031] The length of the contact rod 75 is greater than the distance from the side of the rotating shaft 74 to the deceleration block 72. The top of the limiting rod 77 is close to the bottom of the contact rod 75. When the contact rod 75 moves downward, it will contact the deceleration block 72. The limiting rod 77 prevents the contact rod 75 from deflecting downward.

[0032] The deceleration block 72 is in a semi-cylindrical shape as a whole and is made of rubber. When the contact rod 75 is squeezed by the semi-cylindrical rubber deceleration block 72 , resistance is generated.

[0033] A specific application of this embodiment is: when the upper side of the pad body 1 is subjected to pressure, the pressure will first contact the load-bearing plate 64. At this time, the load-bearing plate 64 will move downward to transfer the pressure to the buffer spring 65. The buffer spring 65 will absorb the pressure and gradually tighten to play a buffering role. Finally, the pressure is transferred to the buffer plate 61 by the telescopic cylinder 62, and the buffer plate 61 is then transferred to the buffer layer 2. The shock-absorbing airbag 66 will also be deformed by the pressure. The pressure-stabilizing block 67 can make the shock-absorbing airbag 66 more uniformly compressed and deformed, which has the effect of buffering and shock reduction, and effectively disperses the pressure, so that the pad increases high-strength elasticity to extend the life of the pad. Subsequently, the buffer spring 65 and the shock-absorbing airbag 66 rebound to drive the load-bearing plate 64 to bounce upward and restore, and in the process of the load-bearing plate 64 moving downward, it will drive the connecting block 73 to move downward, and the connecting block 73 will be connected. The downward movement of the connecting block 73 drives the contact rod 75 to move downward. The contact rod 75 moves downward and contacts the speed reduction block 72. At this time, the contact rod 75 is subjected to the force below and deflects upward. It will not be squeezed by the speed reduction block 72 to produce too much resistance, which will affect the effect of the buffer spring 65 and the shock-absorbing airbag 66 in absorbing the impact force. Subsequently, the elastic rope 76 drives the contact rod 75 to restore. When the buffer spring 65 and the shock-absorbing airbag 66 rebound and drive the load-bearing plate 64 to bounce upward and restore, the contact rod 75 moves upward and contacts the speed reduction block 72. At this time, under the action of the limiting rod 77, the contact rod 75 cannot deflect downward. The contact rod 75 will be squeezed by the rubber speed reduction block 72 to produce resistance, slowing down the speed and amplitude of the load-bearing plate 64 when it bounces upward and restores, preventing the load-bearing plate 64 from bouncing back and forth, thereby further improving the buffering and shock-absorbing effect.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer 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.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-strength elastic pad for railways, comprising a pad body (1), characterized in that: A buffer layer (2) is arranged inside the pad body (1), a rubber pad (3) is arranged at the bottom of the buffer layer (2), a plastic pad (4) is arranged at the bottom of the rubber pad (3), a filler layer (5) is arranged at the bottom of the plastic pad (4), a buffer mechanism (6) is arranged at the top of the pad body (1), and a rebound mitigation mechanism (7) is arranged at the top of the buffer layer (2); The buffer mechanism (6) comprises a buffer plate (61), a shock-absorbing airbag (66) and a pressure stabilizing block (67); the bottom of the buffer plate (61) is fixedly connected to the top of the buffer layer (2); the top of the buffer plate (61) is fixedly connected to a telescopic cylinder (62); the inside of the telescopic cylinder (62) is slidably connected to a telescopic rod (63); the top of the telescopic rod (63) is fixedly connected to a load-bearing plate (64); a buffer spring (65) is sleeved on the surface of the telescopic cylinder (62); and the bottoms of the shock-absorbing airbag (66) and the pressure stabilizing block (67) are both fixedly connected to the top of the buffer layer (2).

2. A high-strength elastic pad for railway according to claim 1, characterized in that: The load-bearing plate (64) is square in shape as a whole, and in an initial state, the load-bearing plate (64) protrudes from the top of the pad body (1).

3. A high-strength elastic pad for railway according to claim 2, characterized in that: In an initial state, both ends of the buffer spring (65) respectively contact the top of the buffer plate (61) and the bottom of the load-bearing plate (64).

4. A high-strength elastic pad for railway according to claim 3, characterized in that: In an initial state, the top of the shock-absorbing airbag (66) contacts the bottom of the load-bearing plate (64), and the inner side of the pressure-stabilizing block (67) fits the outer surface of the shock-absorbing airbag (66).

5. A high-strength elastic pad for railway according to claim 4, characterized in that: The rebound-mitigating mechanism (7) comprises a support plate (71) and a connecting block (73); the bottom of the support plate (71) is fixedly connected to the top of the buffer layer (2); the side of the support plate (71) is fixedly connected to a deceleration block (72); the top of the connecting block (73) is fixedly connected to the bottom of the load-bearing plate (64); the side of the connecting block (73) is rotatably connected to a rotating shaft (74); the side of the rotating shaft (74) is fixedly connected to a contact rod (75); the top of the contact rod (75) is fixedly connected to an elastic rope (76); one end of the elastic rope (76) away from the contact rod (75) is fixedly connected to the side of the connecting block (73); and the side of the connecting block (73) is fixedly connected to a limiting rod (77).

6. A high-strength elastic pad for railway according to claim 5, characterized in that: The length of the contact rod (75) is greater than the distance from the side of the rotating shaft (74) to the speed reduction block (72), and the top of the limiting rod (77) is close to the bottom of the contact rod (75).

7. A high-strength elastic pad for railway according to claim 6, characterized in that: The deceleration block (72) is in the shape of a semi-cylinder as a whole, and is made of rubber.

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