Fatigue-resistant cushion rubber pad for rail brakes

Abstract

The utility model belongs to the technical field of track brake, concretely relates to the fatigue -resisting buffer rubber pad for track brake, including mounting panel, the left -hand end fixed connection of mounting panel has installation rod, the left -hand end middle part fixed connection of mounting panel has the nut, the right -hand end contact of mounting panel has the bottom plate, the left -hand end fixed connection of bottom plate has screw rod, screw rod and mounting panel swing joint, screw rod and nut are connected through the thread, screw rod and mounting panel are provided with auxiliary mechanism together. The utility model discloses through the use of mounting panel, reinforcing rib, can guarantee the good structural strength of bottom layer, under the effect of bottom layer, intermediate layer, surface layer, and bottom layer, intermediate layer, surface layer are phenolic resin, low hardness elastic rubber, high hardness rubber material respectively, make the buffer rubber pad have good durability, buffering, fatigue -resisting effect.

Description

Technical Field

[0001] This utility model relates to the field of rail braking technology, specifically to an anti-fatigue buffer rubber pad for rail braking. Background Technology

[0002] The fatigue-resistant buffer rubber pads in rail braking systems (such as high-speed rail, subway, tram, and railcar) are key components for ensuring braking smoothness, reducing vibration and noise, and extending component life. Their design must take into account properties such as high elasticity, fatigue resistance, aging resistance, and temperature change resistance, while meeting stringent mechanical and durability requirements.

[0003] A utility model patent with patent authorization announcement number CN205742894U discloses a buffer rubber pad, including a pad plate, a buffer layer and a protective layer. The protective layer and the pad plate are respectively fixedly bonded to the upper and lower surfaces of the buffer layer. The buffer layer is composed of a deformation layer and a support layer. The support layer has convex strips at equal intervals. The inside of the convex strips is a hollow structure. The lower surface of the deformation layer has grooves corresponding to the convex strips, and the convex strips are fastened together. The deformation layer has a number of shrinkage holes inside, and metal wire mesh is crisscrossed inside the deformation layer.

[0004] However, existing buffer rubber pads for rail brakes also have certain shortcomings. Most existing buffer rubber pads for rail brakes simply use a combination of surface layer and buffer layer to complete the friction of the rubber pad. Due to the limitations of the properties of surface layer and buffer layer, the subsequent rubber pad has weak structural strength and durability. Utility Model Content

[0005] The purpose of this invention is to provide an anti-fatigue buffer rubber pad for rail brakes, which solves the problem that existing buffer rubber pads for rail brakes often simply use a combination of surface layer and buffer layer to complete the friction of the rubber pad. Due to the limitations of the properties of surface layer and buffer layer, the subsequent rubber pad has weak structural strength and durability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-fatigue buffer rubber pad for rail brakes, comprising a mounting plate, a mounting rod fixedly connected to the left end of the mounting plate, a nut fixedly connected to the middle of the left end of the mounting plate, a base plate contacting the right end of the mounting plate, a screw fixedly connected to the left end of the base plate, the screw being movably connected to the mounting plate, the screw and the nut being connected by threads, and an auxiliary mechanism being provided together on the screw and the mounting plate.

[0007] Preferably, the inner wall of the base plate is fixedly connected to a reinforcing rib, the outer side of the reinforcing rib is fixedly connected to a bottom layer, the bottom layer is fixedly connected to the inner wall of the base plate, the right end of the bottom layer is fixedly connected to an intermediate layer, the intermediate layer is in contact with the base plate, the right end of the intermediate layer is fixedly connected to a surface layer, and the right end of the surface layer is provided with a friction groove. Through the combined use of the bottom layer, intermediate layer, and surface layer, the rubber pad can be guaranteed to have good structural strength, durability, and cushioning properties.

[0008] Preferably, the bottom layer is made of phenolic resin and has a thickness of 4mm; the middle layer is made of low-hardness elastic rubber and has a thickness of 5mm; and the top layer is made of high-hardness rubber and has a thickness of 7mm. By using phenolic resin, low-hardness elastic rubber, and high-hardness rubber, the bottom layer, middle layer, and top layer can have good durability and structural strength.

[0009] Preferably, multiple friction grooves are provided, and the multiple friction grooves are evenly distributed on the surface. By providing friction grooves, the friction effect of the surface can be improved.

[0010] Preferably, a warning plate is fixedly connected to the inner wall of the surface layer. The warning plate is made of cast iron. The warning plate can provide early warning of surface wear, and the cast iron material has good durability.

[0011] Preferably, the auxiliary mechanism includes a limiting groove, the screw has a limiting groove on its surface, a fixing plate is fixedly connected to the left end of the mounting plate and above the screw, a plug-in piece is slidably connected to the inner wall of the fixing plate, the plug-in piece is slidably connected to the limiting groove, an elastic element is bonded to the connecting piece of the plug-in piece, and the other end of the elastic element is bonded to the fixing plate. Under the action of the limiting groove, plug-in piece and other structures, the screw can be limited, avoiding the problem of screw vibration and loosening.

[0012] Preferably, an end ring is fixedly connected to the upper end of the plug-in piece. The end ring is made of rubber. The end ring facilitates the movement of the plug-in piece by pulling it, and the rubber material provides a good feel when used.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the use of mounting plates and reinforcing ribs, can ensure good structural strength of the bottom layer. With the action of the bottom layer, the middle layer and the surface layer, and the bottom layer, the middle layer and the surface layer being made of phenolic resin, low-hardness elastic rubber and high-hardness rubber respectively, the cushioning rubber pad has good durability, cushioning and fatigue resistance.

[0015] 2. This utility model uses the screw, nut and other structures to lock the mounting plate and the base plate together. Under the action of the limiting groove, plug-in piece and elastic element, the screw can be clamped to avoid the problem of the screw oscillating and loosening. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 For the present utility model Figure 1 Side view;

[0018] Figure 3 For the present utility model Figure 1 A schematic diagram of the base plate;

[0019] Figure 4 For the present utility model Figure 3 Except for the bottom layer diagram;

[0020] Figure 5 For the present utility model Figure 2 Enlarged view of point A.

[0021] In the diagram: 1. Mounting plate; 2. Mounting rod; 3. Nut; 4. Base plate; 5. Screw; 6. Auxiliary mechanism; 7. Reinforcing rib; 8. Bottom layer; 9. Middle layer; 10. Surface layer; 11. Friction groove; 12. Warning plate; 61. Limiting groove; 62. Fixing plate; 63. Insertion plate; 64. Elastic element; 65. End ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The fatigue-resistant buffer rubber pad for rail brakes includes a mounting plate 1. A mounting rod 2 is fixedly connected to the left end of the mounting plate 1. A nut 3 is fixedly connected to the middle of the left end of the mounting plate 1. A base plate 4 is in contact with the right end of the mounting plate 1. A screw 5 is fixedly connected to the left end of the base plate 4. The screw 5 is movably connected to the mounting plate 1. The screw 5 and the nut 3 are connected by threads. An auxiliary mechanism 6 is provided on both the screw 5 and the mounting plate 1.

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A reinforcing rib 7 is fixedly connected to the inner wall of the base plate 4, and a bottom layer 8 is fixedly connected to the outer side of the reinforcing rib 7. The bottom layer 8 is fixedly connected to the inner wall of the base plate 4. A middle layer 9 is fixedly connected to the right end of the bottom layer 8. The middle layer 9 is in contact with the base plate 4. A surface layer 10 is fixedly connected to the right end of the middle layer 9. A friction groove 11 is provided at the right end of the surface layer 10. Through the combined use of the bottom layer 8, the middle layer 9, and the surface layer 10, the rubber pad can be guaranteed to have good structural strength, durability, and cushioning properties.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 The bottom layer 8 is made of phenolic resin and has a thickness of 4mm. The middle layer 9 is made of low-hardness elastic rubber and has a thickness of 5mm. The top layer 10 is made of high-hardness rubber and has a thickness of 7mm. By using phenolic resin, low-hardness elastic rubber and high-hardness rubber, the bottom layer 8, middle layer 9 and top layer 10 can have good durability and structural strength.

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 Multiple friction grooves 11 are provided and are evenly distributed on the surface layer 10. The friction grooves 11 can improve the friction effect of the surface layer 10. A warning plate 12 is fixedly connected to the inner wall of the surface layer 10. The warning plate 12 is made of cast iron. The warning plate 12 can provide wear warning for the surface layer 10, and the cast iron material has good durability.

[0027] Please see Figure 1 , Figure 2 , Figure 5 The auxiliary mechanism 6 includes a limiting groove 61. The limiting groove 61 is formed on the surface of the screw 5. A fixing plate 62 is fixedly connected to the left end of the mounting plate 1 and above the screw 5. A plug-in plate 63 is slidably connected to the inner wall of the fixing plate 62. The plug-in plate 63 is slidably connected to the limiting groove 61. An elastic element 64 is bonded to the connecting piece of the plug-in plate 63. The other end of the elastic element 64 is bonded to the fixing plate 62. An end ring 65 is fixedly connected to the upper end of the plug-in plate 63. The end ring 65 is made of rubber. The end ring 65 facilitates the movement of the plug-in plate 63. The rubber material provides a good feel. Through the action of the limiting groove 61, the plug-in plate 63 and other structures, the screw 5 can be limited, avoiding the problem of the screw 5 oscillating and loosening.

[0028] The specific implementation process of this utility model is as follows: In use, by pulling the end ring 65 upward, the plug-in piece 63 is moved. Under the action of the fixing piece 62, the elastic element 64 is deformed, and then the base plate 4 is pushed to contact the mounting plate 1, so that the screw 5 passes through the mounting plate 1 and contacts the nut 3. Rotating the base plate 4 drives the screw 5 to rotate. Under the threaded connection, the screw 5 is threaded and installed. The end ring 65 is loosened so that the elastic element 64 returns to its original deformation, so as to push the plug-in piece 63 into the limiting groove 61 to limit the screw 5 and avoid the problem of the screw 5 vibrating and loosening.

[0029] By using the mounting plate 1, base plate 4, and reinforcing rib 7 together, the bottom layer 8 of the rubber pad can be guaranteed to have good structural strength. The bottom layer 8, the middle layer 9, and the surface layer 10 are made of phenolic resin, low-hardness elastic rubber, and high-hardness rubber, respectively. Under the action of the bottom layer 8, the middle layer 9, and the surface layer 10, the rubber pad has good durability, cushioning, and fatigue resistance. Under the action of the friction groove 11, the contact friction effect of the surface layer 10 can be improved. Under the action of the warning plate 12, the rubber pad can be used for wear warning.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Anti-fatigue cushion rubber pad for rail brakes, comprising a mounting plate (1), characterized in that: The mounting plate (1) is fixedly connected to the left end of the mounting rod (2), and the mounting plate (1) is fixedly connected to the middle of the left end of the mounting plate (1). The mounting plate (1) is in contact with the base plate (4) on the right end. The base plate (4) is fixedly connected to the left end of the base plate (4). The screw (5) is movably connected to the mounting plate (1). The screw (5) and the nut (3) are connected by threads. The screw (5) and the mounting plate (1) are jointly provided with an auxiliary mechanism (6).

2. The fatigue-resistant cushioning rubber pad for rail brakes according to claim 1, characterized in that: The inner wall of the base plate (4) is fixedly connected with a reinforcing rib (7), and the outer side of the reinforcing rib (7) is fixedly connected with a bottom layer (8). The bottom layer (8) is fixedly connected to the inner wall of the base plate (4). The right end of the bottom layer (8) is fixedly connected with an intermediate layer (9). The intermediate layer (9) is in contact with the base plate (4). The right end of the intermediate layer (9) is fixedly connected with a surface layer (10). The right end of the surface layer (10) is provided with a friction groove (11).

3. The fatigue-resistant cushioning rubber pad for rail brakes according to claim 2, characterized in that: The bottom layer (8) is made of phenolic resin and has a thickness of 4mm. The middle layer (9) is made of low-hardness elastic rubber and has a thickness of 5mm. The top layer (10) is made of high-hardness rubber and has a thickness of 7mm.

4. The fatigue resistant cushioning rubber pad for rail brakes of claim 2, wherein: The friction grooves (11) are provided in multiple ways, and the multiple friction grooves (11) are evenly distributed on the surface layer (10).

5. The fatigue resistant cushioning rubber pad for rail brakes of claim 2, wherein: A warning plate (12) is fixedly connected to the inner wall of the surface layer (10), and the warning plate (12) is made of cast iron.

6. The fatigue-resistant cushioning rubber pad for rail brakes according to claim 1, characterized in that: The auxiliary mechanism (6) includes a limiting groove (61). The limiting groove (61) is opened on the surface of the screw (5). A fixing plate (62) is fixedly connected to the left end of the mounting plate (1) and above the screw (5). A plug-in plate (63) is slidably connected to the inner wall of the fixing plate (62). The plug-in plate (63) is slidably connected to the limiting groove (61). An elastic element (64) is bonded to the connecting piece of the plug-in plate (63). The other end of the elastic element (64) is bonded to the fixing plate (62).

7. The fatigue-resistant cushioning rubber pad for rail brakes according to claim 6, characterized in that: The upper end of the plug-in piece (63) is fixedly connected to an end ring (65), which is made of rubber.

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