Casting type polyurethane elastic backing plate used in track traffic turnout zone

Abstract

The utility model provides a pouring type polyurethane elastic backing plate used in a rail transit turnout zone, which relates to the technical field of the rail transit turnout zone and comprises a device main body. The pouring type polyurethane elastic backing plate is provided with the pouring type polyurethane elastic backing plate bodies, the clamping plate at one end of one pouring type polyurethane elastic backing plate body is connected with the clamping groove in the other pouring type polyurethane elastic backing plate body according to the installation requirement, and the multiple pouring type polyurethane elastic backing plate bodies are installed and used. According to the pouring type polyurethane elastic base plate, the connected pouring type polyurethane elastic base plate body is installed on the track to be fixed, and due to the fact that the pouring type polyurethane elastic base plate body is made of pouring type polyurethane and is formed through pouring, the pouring type polyurethane elastic base plate body has the advantages of being good in elasticity and abrasion resistance, low in dynamic-static ratio and the like. Dynamic elasticity can be well provided for a turnout zone, and the riding comfort of passengers in the turnout zone and the stability and safety of rail use are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit turnout areas, in particular to a cast polyurethane elastic cushion plate used in rail transit turnout areas. Background Technique

[0002] The track is the basis for the operation of tramcars, subways and light rails. Track stiffness is one of the important parameters affecting track vibration and deformation, train operation speed, train operation safety, smoothness and track maintenance workload. Laying an elastic cushion plate between the rail and the roadbed to increase the elasticity of the track support points can, to a certain extent, reduce the transmission of vibrations generated by wheel-rail impacts to the sleeper, roadbed and surrounding buildings, and reduce track vibration and noise.

[0003] In the prior art, the raw materials of track elastic cushion plates mostly use rubber or thermoplastic polyester elastomer. The static stiffness of the elastic cushion plates made of these two raw materials is relatively high. Due to the relatively high hardness of the raw materials, there is a risk of cracks in the sleeper when bearing static loads and the contact between the sleeper and the roadbed is unstable, thus affecting the overall stability of the roadbed. After long-term use, the degree of pulverization of the sleeper and the roadbed is high, reducing the stability and safety of use. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem of unstable contact between the sleeper and the roadbed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a cast polyurethane elastic cushion plate used in rail transit turnout areas, including a device main body:

[0006] The device main body includes a cast polyurethane elastic cushion plate main body. Both sides of the cast polyurethane elastic cushion plate main body are provided with connection structures, and a limiting structure is arranged inside the cast polyurethane elastic cushion plate main body.

[0007] The fixing main body includes a fixing structure. The fixing structure is arranged on one side of the connection structure, and a fixing frame is arranged on one side of the fixing structure.

[0008] As a preferred implementation manner, the connection structure includes a clamping plate and a clamping groove. The clamping plate is fixedly connected to one end of the cast polyurethane elastic cushion plate main body. The clamping plate is fixedly connected to the fixing frame. The clamping groove is fixedly connected to the end of the cast polyurethane elastic cushion plate main body far from the clamping plate. The clamping plate and the clamping groove are clamped.

[0009] The technical effect of adopting the above further scheme is that the connection of multiple cast polyurethane elastic cushion plate main bodies can be carried out through the clamping of the clamping plate and the clamping groove, which is convenient for installing and using multiple cast polyurethane elastic cushion plate main bodies according to the use requirements, and improves the convenience of use and carrying.

[0010] As a preferred embodiment, the limiting structure includes fixing bolts and fixing grooves. The fixing bolts are arranged at equal intervals at one end of the main body of the cast polyurethane elastic cushion plate, and the fixing grooves are arranged at equal intervals at one end of the main body of the cast polyurethane elastic cushion plate. The fixing bolts are threadedly connected with the fixing grooves.

[0011] The technical effect of adopting the above further solution is that the connection between the fixing bolts and the fixing grooves can install and fix the main body of the cast polyurethane elastic cushion plate at a specified position, facilitating the installation and use of the main body of the cast polyurethane elastic cushion plate.

[0012] As a preferred embodiment, the limiting structure further includes a resistance ring and a resistance groove. The resistance rings are fixedly connected at equal intervals to one end of the main body of the cast polyurethane elastic cushion plate close to the fixing grooves, and the resistance grooves are arranged at equal intervals on one side of the main body of the cast polyurethane elastic cushion plate close to the resistance rings. The resistance rings and the resistance grooves are slidably connected with the fixing bolts.

[0013] The technical effect of adopting the above further solution is that the outer wall of the resistance ring can be rubbed through the resistance ring and the resistance groove to generate a certain resistance, preventing the fixing bolts from moving out of the fixing grooves under the action of vibration.

[0014] As a preferred embodiment, the fixing structure includes an adjusting frame. The adjusting frames are fixedly connected in a linear array at one end of the clamping groove, a moving ring is slidably connected to the outer wall of the adjusting frame, a clamping block is fixedly connected to one end of the moving ring, and the clamping block is slidably connected with the adjusting frame.

[0015] The technical effect of adopting the above further solution is that the moving ring can be fixed through the adjusting frame, the movement of the moving ring can drive the threaded rod to move, and the moving ring can be fixed at one end of the adjusting frame through the clamping block, facilitating the connection and fixation of the threaded rod with the fixing frame.

[0016] As a preferred embodiment, the fixing structure further includes a holding disc. The holding disc is arranged on one side of the adjusting frame, and a threaded rod is fixedly connected to the middle of the holding disc.

[0017] The technical effect of adopting the above further solution is that the rotation of the holding disc can drive the threaded rod to move, and the movement of the threaded rod can be connected and fixed with the fixing frame, and the clamping plate and the clamping groove can be fixed.

[0018] As a preferred embodiment, the fixing structure further includes a limiting ring. The limiting ring is fixedly connected to one end of the threaded rod close to the moving ring, and the limiting ring is clamped with the moving ring.

[0019] The technical effect of adopting the above further solution is as follows: The limiting ring can fix the threaded rod, and can also drive the moving ring to slide in the adjusting frame under the movement of the threaded rod, which is convenient for connecting and fixing the threaded rod with the fixing frame.

[0020] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0021] 1. The present utility model is provided with a cast polyurethane elastic cushion plate main body. According to the installation requirements, the clamping plate at one end of the cast polyurethane elastic cushion plate main body is connected to the clamping groove on another cast polyurethane elastic cushion plate main body, and multiple cast polyurethane elastic cushion plate main bodies are installed and used. The connected cast polyurethane elastic cushion plate main bodies are installed and fixed on the track. Since the cast polyurethane elastic cushion plate main body is made of cast polyurethane and is cast formed, the cast polyurethane elastic cushion plate main body has the characteristics of good elasticity, good wear resistance, and low dynamic-static ratio, etc. It can provide good dynamic elasticity for the turnout area, improving the comfort of passengers riding in the turnout area and the stability and safety of track use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a cast polyurethane elastic cushion plate used in a rail transit turnout area provided by the present utility model;

[0023] Figure 2 It is a schematic cross-sectional view of the overall structure of a cast polyurethane elastic cushion plate used in a rail transit turnout area provided by the present utility model;

[0024] Figure 3 It is an enlarged schematic diagram of the limiting structure of a cast polyurethane elastic cushion plate used in a rail transit turnout area provided by the present utility model;

[0025] Figure 4 It is a schematic diagram of the fixed main body structure of a cast polyurethane elastic cushion plate used in a rail transit turnout area provided by the present utility model;

[0026] Figure 5 It is a schematic cross-sectional view of the fixed main body structure of a cast polyurethane elastic cushion plate used in a rail transit turnout area provided by the present utility model.

[0027] LEGEND DESCRIPTION:

[0028] 11. Cast polyurethane elastic cushion plate main body; 121. Clamping plate; 122. Clamping groove; 131. Fixing bolt; 132. Fixing groove; 133. Resistance ring; 134. Resistance groove; 211. Adjusting frame; 212. Moving ring; 213. Holding disc; 214. Threaded rod; 215. Clamping block; 216. Limiting ring; 22. Fixing frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 to 5 , the present invention provides a technical solution: a cast polyurethane elastic pad used in the turnout area of rail transit, including a device main body:

[0031] The device main body includes a cast polyurethane elastic pad main body 11. Connecting structures are arranged on both sides of the cast polyurethane elastic pad main body 11, and a limiting structure is arranged inside the cast polyurethane elastic pad main body 11.

[0032] The fixing main body includes a fixing structure. The fixing structure is arranged on one side of the connecting structure, and a fixing frame 22 is arranged on one side of the fixing structure.

[0033] As Figures 1 to 3 shown, the connecting structure includes a clamping plate 121 and a clamping groove 122. The clamping plate 121 is fixedly connected to one end of the cast polyurethane elastic pad main body 11. The clamping plate 121 is fixedly connected to the fixing frame 22. The clamping groove 122 is fixedly connected to the end of the cast polyurethane elastic pad main body 11 away from the clamping plate 121. The clamping plate 121 and the clamping groove 122 are clamped. The limiting structure includes fixing bolts 131 and fixing grooves 132. The fixing bolts 131 are arranged at equal intervals at one end of the cast polyurethane elastic pad main body 11. The fixing grooves 132 are arranged at equal intervals at one end of the cast polyurethane elastic pad main body 11. The fixing bolts 131 and the fixing grooves 132 are threadedly connected. The limiting structure further includes resistance rings 133 and resistance grooves 134. The resistance rings 133 are fixedly connected at equal intervals to the end of the cast polyurethane elastic pad main body 11 close to the fixing grooves 132. The resistance grooves 134 are arranged at equal intervals on the side of the cast polyurethane elastic pad main body 11 close to the resistance rings 133. The resistance rings 133 and the resistance grooves 134 are slidably connected to the fixing bolts 131.

[0034] In this embodiment, according to the installation requirements, the clamping plate 121 at one end of the cast polyurethane elastic cushion plate body 11 is connected to the clamping groove 122 on another cast polyurethane elastic cushion plate body 11. Multiple cast polyurethane elastic cushion plate bodies 11 are installed and used. The connected cast polyurethane elastic cushion plate bodies 11 are placed on the track. The fixing bolt 131 is fixed in the fixing groove 132. The resistance ring 133 and the resistance groove 134 installed on one side of the fixing groove 132 fix the installed fixing bolt 131 to prevent the fixing bolt 131 from moving out of the fixing groove 132 under the action of vibration. Since the cast polyurethane elastic cushion plate body 11 is made of cast polyurethane and is cast-molded, the cast polyurethane elastic cushion plate body 11 has the characteristics of good elasticity, good wear resistance, and low dynamic-static ratio, etc., and can provide good dynamic elasticity for the turnout area, improving the comfort of passengers riding in the turnout area and the stability and safety of track use.

[0035] As Figure 1 , Figure 4 and Figure 5 shown, the fixing structure includes an adjusting frame 211. The adjusting frames 211 are fixedly connected in a linear array at one end of the clamping groove 122. A moving ring 212 is slidably connected to the outer wall of the adjusting frame 211. One end of the moving ring 212 is fixedly connected to a clamping block 215. The clamping block 215 is slidably connected to the adjusting frame 211. The fixing structure further includes a holding plate 213. The holding plate 213 is arranged on one side of the adjusting frame 211. A threaded rod 214 is fixedly connected to the middle of the holding plate 213. The fixing structure further includes a limiting ring 216. The limiting ring 216 is fixedly connected to one end of the threaded rod 214 close to the moving ring 212. The limiting ring 216 is clamped with the moving ring 212.

[0036] In this embodiment, hold the holding plate 213 and rotate it. The threaded rod 214 fixed inside the holding plate 213 moves as the holding plate 213 rotates. The limiting ring 216 fixed to one end of the threaded rod 214 generates a certain pulling force as the threaded rod 214 moves. The moving ring 212 slides on the adjusting frame 211 under the action of the pulling force, so that the threaded rod 214 can be fixed on the fixing frame 22, and the connected clamping plate 121 and clamping groove 122 are limited and fixed to prevent the clamping plate 121 and the clamping groove 122 from loosening under the action of vibration.

[0037] Working principle: First, according to the installation requirements, connect the clamping plate 121 at one end of the cast polyurethane elastic cushion plate body 11 to the clamping groove 122 on another cast polyurethane elastic cushion plate body 11, and install and use multiple cast polyurethane elastic cushion plate bodies 11. Then, hold the holding disc 213 and rotate it. The threaded rod 214 fixed inside the holding disc 213 moves along with the rotation of the holding disc 213. The limiting ring 216 fixed at one end of the threaded rod 214 generates a certain pulling force as the threaded rod 214 moves. The moving ring 212 slides on the adjusting frame 211 under the action of the pulling force, so that the threaded rod 214 can be fixed on the fixing frame 22, and the connected clamping plate 121 and clamping groove 122 are limited and fixed to prevent the clamping plate 121 and clamping groove 122 from loosening under the action of vibration. Place the connected cast polyurethane elastic cushion plate body 11 on the track, fix the fixing bolt 131 in the fixing groove 132, and the resistance ring 133 and resistance groove 134 installed on one side of the fixing groove 132 fix the installed fixing bolt 131 to prevent the fixing bolt 131 from moving out of the fixing groove 132 under the action of vibration. Since the cast polyurethane elastic cushion plate body 11 is made of cast polyurethane and is cast-molded, the cast polyurethane elastic cushion plate body 11 has the characteristics of good elasticity, good wear resistance, and low dynamic-static ratio, etc., and can provide good dynamic elasticity for the turnout area, improving the comfort of passengers riding in the turnout area and the stability and safety of track use.

[0038] The above are only the preferred embodiments of the present invention, and do not limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A cast polyurethane elastic pad used in a turnout area of rail transit, including a device main body, characterized in that: The device main body includes a cast polyurethane elastic pad main body (11). Connecting structures are arranged on both sides of the cast polyurethane elastic pad main body (11), and a limiting structure is arranged inside the cast polyurethane elastic pad main body (11); The fixing main body includes a fixing structure. The fixing structure is arranged on one side of the connecting structure, and a fixing frame (22) is arranged on one side of the fixing structure.

2. The cast polyurethane elastic pad used in the turnout area of rail transit according to claim 1, characterized in that: The connecting structure includes a clamping plate (121) and a clamping groove (122). The clamping plate (121) is fixedly connected to one end of the cast polyurethane elastic pad main body (11), the clamping plate (121) is fixedly connected to the fixing frame (22), the clamping groove (122) is fixedly connected to the end of the cast polyurethane elastic pad main body (11) away from the clamping plate (121), and the clamping plate (121) and the clamping groove (122) are clamped.

3. The cast polyurethane elastic sleeper pad used in the turnout area of rail transit according to claim 1, wherein: The limiting structure includes fixing bolts (131) and fixing grooves (132). The fixing bolts (131) are arranged at equal intervals at one end of the cast polyurethane elastic pad main body (11), the fixing grooves (132) are arranged at equal intervals at one end of the cast polyurethane elastic pad main body (11), and the fixing bolts (131) and the fixing grooves (132) are threadedly connected.

4. The cast polyurethane elastic pad used in the turnout area of rail transit according to claim 1, characterized in that: The limiting structure further includes a resistance ring (133) and a resistance groove (134). The resistance rings (133) are fixedly connected at equal intervals to the end of the cast polyurethane elastic pad main body (11) close to the fixing groove (132), the resistance grooves (134) are arranged at equal intervals on the side of the cast polyurethane elastic pad main body (11) close to the resistance ring (133), and the resistance ring (133) and the resistance groove (134) are slidably connected to the fixing bolt (131).

5. The cast polyurethane elastic pad used in the turnout area of rail transit according to claim 1, wherein: The fixing structure includes an adjusting frame (211). The adjusting frames (211) are fixedly connected in a linear array at one end of the clamping groove (122). A moving ring (212) is slidably connected to the outer wall of the adjusting frame (211). One end of the moving ring (212) is fixedly connected to a clamping block (215), and the clamping block (215) is slidably connected to the adjusting frame (211).

6. The cast polyurethane elastic pad used in the turnout area of rail transit according to claim 1, characterized in that: The fixing structure further includes a holding disc (213). The holding disc (213) is arranged on one side of the adjusting frame (211), and a threaded rod (214) is fixedly connected to the middle of the holding disc (213).

7. The cast polyurethane elastic pad used in the turnout area of rail transit according to claim 1, characterized in that: The fixing structure further includes a limiting ring (216). The limiting ring (216) is fixedly connected to one end of the threaded rod (214) close to the moving ring (212), and the limiting ring (216) is clamped with the moving ring (212).

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