Steel rail lossless reinforcing device

Abstract

The utility model relates to the technical field of steel rail lossless reinforcing, and discloses a steel rail lossless reinforcing device which comprises two clamping assemblies and a connecting assembly, and the two clamping assemblies are arranged on the two sides of a steel rail; the connecting assembly comprises a bolt, a nut and a gasket, the threaded section of the bolt is rotatably arranged on the two clamping assemblies in a penetrating mode, the nut is in threaded connection with the bolt, the gasket is located between the head of the bolt and the clamping assemblies and / or arranged between the nut and the clamping assemblies, and the gasket abuts against the clamping assemblies through spherical surfaces. When the steel rail lossless reinforcing device disclosed by the utility model is used for reinforcing the steel rail, point contact among the head of the bolt, the nut and the clamping assembly can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of non-destructive reinforcement technology for rails, specifically to a non-destructive reinforcement device for rails. Background Technology

[0002] Non-destructive rail reinforcement devices are used to reinforce welded rails. They generally include clamps on both sides of the rail, bolts passing through the two clamps, and nuts threadedly connected to the bolts.

[0003] Announcement No. CN204644803U discloses a non-destructive rail reinforcement device, including clamping plates, bolts, and limiting supports. The clamping plates are fixed to both sides of the rail web by a combination of adhesive bonding and freezing. Each pair of clamping bodies is located on both sides of the rail, with the lower end of the clamping body clamping the bottom of the rail and the upper end clamping the clamping plate. A limiting support is provided between the bottoms of each pair of clamping bodies.

[0004] In the aforementioned non-destructive rail reinforcement device, bolts, nuts, and two clamping bodies are used to clamp the plates located on both sides of the rail, so that the two clamping bodies clamp the two sides of the rail. However, due to manufacturing errors of the clamping bodies, when the bolt passes through the two clamping bodies, or when the bolt and nut clamp the two clamping bodies, there may be point contact between the bolt head or nut and the clamping bodies. Point contact cannot effectively apply a uniform load to the two clamping bodies, which may cause loosening between the two clamping bodies and affect the reinforcement of the rail. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a non-destructive rail reinforcement device to solve the technical problem of possible point contact between the bolt head and nut and the clamping body in the existing rail reinforcement device.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a non-destructive reinforcement device for steel rails, comprising:

[0008] Two clamping assemblies are disposed on both sides of the rail; and

[0009] A connecting assembly includes a bolt, a nut, and a washer. The threaded section of the bolt is rotatably inserted through two clamping assemblies. The nut is threadedly connected to the bolt. The washer is located between the head of the bolt and the clamping assembly, and / or disposed between the nut and the clamping assembly. The washer and the clamping assembly abut against each other via a spherical surface.

[0010] In one embodiment, the clamping assembly is formed with a spherical groove, and the gasket is formed with a spherical protrusion that mates with the spherical groove and is fitted into the spherical groove via the spherical protrusion.

[0011] In one embodiment, the clamping assembly has a spherical protrusion, and the gasket has a spherical groove relative to the spherical protrusion, and is fitted onto the spherical protrusion through the spherical groove.

[0012] In one embodiment, the washer is fitted onto the threaded section of the bolt and is in contact with the head of the bolt via a plane.

[0013] In one embodiment, the clamping assembly includes a clamping plate and a clamping member. The clamping plate is used to abut against the web of the rail. The clamping member includes a first clamping block and a second clamping block. The first clamping block abuts against the side of the clamping plate opposite to the rail. The second clamping block is connected to the first clamping block and is disposed below the bottom of the rail, abutting against the bottom of the rail.

[0014] The threaded end of the bolt is rotatably inserted through the two second clamping blocks, and the head of the bolt and the nut respectively abut against the opposite side of the two second clamping blocks in the two clamping assemblies.

[0015] In one embodiment, the second clamping block has a communicating spherical groove and a through hole, the spherical groove being located on the side of the through hole away from the rail;

[0016] The threaded section of the bolt passes through the second clamping block via the spherical groove and through hole.

[0017] In one embodiment, the first clamping block has a slot on the side opposite to the clamping plate;

[0018] The clamping member further includes an insulating block, which is inserted into the slot, and the first clamping block abuts against the clamping plate via the insulating block.

[0019] In one embodiment, the rail non-destructive reinforcement device further includes a limiting component, which is connected to the first clamping block and / or the second clamping block. The limiting component has a limiting groove relative to the nut and is fitted onto the nut through the limiting groove to limit the rotation of the nut relative to the limiting component.

[0020] In one embodiment, the clamping member further includes two fixing plates, which are spaced apart on the side of the first clamping block away from the rail and connect the first clamping block and / or the second clamping block.

[0021] The limiting component is rotatably connected to the two fixing plates, and is connected to the first clamping block and / or the second clamping block via the two fixing plates;

[0022] The limiting groove passes through the side of the limiting component away from the rotation axis of the limiting component, and the inner wall of the limiting groove can fit against the two parallel outer walls of the nut.

[0023] In one embodiment, the thickness of the second clamping block located below the rail is 25-35 mm.

[0024] Compared with the prior art, the rail non-destructive reinforcement device provided by this utility model reinforces the rail by setting two clamping components on both sides of the rail, then passing the bolt through the two clamping components, threading the nut to the bolt, putting the washer on the bolt, and making the washer and the clamping component abut against each other through the spherical surface, rotating the bolt or nut, and clamping the two clamping components by the bolt and nut, so that the two clamping components clamp the rail.

[0025] When the washer is placed between the bolt head and the clamping assembly, first nut is placed against the clamping assembly, and then the bolt or nut is rotated so that the bolt and nut clamp the two clamping assemblies. At this time, because the washer and the clamping assembly are connected by a spherical fit, the washer can rotate relative to the clamping assembly. The washer can simultaneously fit against the clamping assembly and the bolt head, avoiding point contact between the bolt head and the clamping assembly.

[0026] When the washer is placed between the nut and the clamping assembly, first the head of the bolt is placed against the clamping assembly, and then the bolt or nut is rotated so that the bolt and nut clamp the two clamping assemblies. At this time, because the washer and the clamping assembly are connected by a spherical fit, the washer can rotate relative to the clamping assembly. The washer can simultaneously fit against the clamping assembly and the nut, avoiding point contact between the nut and the clamping assembly.

[0027] When the washer is placed between the bolt head and the clamping assembly, and also between the nut and the clamping assembly, there are two washers. The two washers can rotate relative to the clamping assembly, and can fit against the clamping assembly and respectively against the head of the nut and the bolt, thus avoiding point contact between the bolt head, the nut and the clamping assembly. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of a non-destructive rail reinforcement device provided in an embodiment of this utility model;

[0029] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle;

[0030] Figure 3This is a schematic diagram of the clamping component in a non-destructive rail reinforcement device provided in an embodiment of this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the shim in the rail non-destructive reinforcement device provided in one embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] Clamping assembly 1;

[0034] Plyboard 11;

[0035] Clamping component 12;

[0036] First clamping block 121;

[0037] Second clamping block 122;

[0038] Insulating block 123;

[0039] Fixing plate 124;

[0040] Spherical groove 1a;

[0041] Through hole 1b;

[0042] Slot 1c;

[0043] Connection component 2;

[0044] Bolt 21;

[0045] Nut 22;

[0046] Gasket 23;

[0047] Rail 3;

[0048] Limiting component 4;

[0049] Limiting groove 4a. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0051] In order to solve the technical problem of possible point contact between the head of the bolt 21 and the nut and the clamping body of the rail reinforcement device, this utility model provides a non-destructive rail reinforcement device that can avoid point contact between the bolt 21 and the nut and the clamping assembly.

[0052] It should be noted that the rail non-destructive reinforcement device in this utility model is used for, but not limited to, rail reinforcement. For ease of explanation, this utility model only uses the application of the rail non-destructive reinforcement device to rail reinforcement as an example. The principle of the rail non-destructive reinforcement device applied to other types of equipment is essentially the same as that applied to rail reinforcement, and will not be elaborated here.

[0053] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a rail non-destructive reinforcement device in one embodiment of the present invention. The rail non-destructive reinforcement device includes two clamping components 1 and a connecting component 2. The two clamping components 1 are disposed on both sides of the rail 3. The connecting component 2 includes a bolt 21, a nut 22 and a washer 23. The threaded section of the bolt 21 is rotatably inserted through the two clamping components 1. The nut 22 is threadedly connected to the bolt 21. The washer 23 is located between the head of the bolt 21 and the clamping component 1, and / or disposed between the nut 22 and the clamping component 1. The washer 23 and the clamping component 1 abut against each other through a spherical surface.

[0054] Specifically, when reinforcing the rail 3, two clamping components 1 are placed on both sides of the rail 3. Then, bolts 21 are passed through the two clamping components 1, nuts 22 are threadedly connected to bolts 21, washers 23 are fitted onto bolts 21, and the washers 23 are made to abut against the clamping components 1 through spherical contact. By rotating bolts 21 or nuts 22, the two clamping components 1 are clamped by bolts 21 and nuts 22, thus clamping the rail 3.

[0055] When the washer 23 is placed between the head of the bolt 21 and the clamping assembly 1, the nut 22 is first placed against the clamping assembly 1, and then the bolt 21 or the nut 22 is rotated so that the bolt 21 and the nut 22 clamp the two clamping assemblies 1. At this time, since the washer 23 and the clamping assembly 1 are connected by a spherical fit, the washer 23 can rotate relative to the clamping assembly 1. The washer 23 can simultaneously fit against the clamping assembly 1 and the head of the bolt 21, avoiding point contact between the head of the bolt 21 and the clamping assembly 1.

[0056] When the washer 23 is placed between the nut 22 and the clamping assembly 1, the head of the bolt 21 is first placed against the clamping assembly 1, and then the bolt 21 or the nut 22 is rotated so that the bolt 21 and the nut 22 clamp the two clamping assemblies 1. At this time, since the washer 23 and the clamping assembly 1 are connected by a spherical fit, the washer 23 can rotate relative to the clamping assembly 1. The washer 23 can simultaneously fit against the clamping assembly 1 and the nut 22, avoiding point contact between the nut 22 and the clamping assembly 1.

[0057] When the washer 23 is placed between the head of the bolt 21 and the clamping assembly 1, and between the nut 22 and the clamping assembly 1, there are two washer 23s. The two washer 23s can rotate relative to the clamping assembly 1. The two washer 23s can fit against the clamping assembly 1 and fit against the head of the nut 22 and the head of the bolt 21 respectively, avoiding point contact between the head of the bolt 21, the nut 22 and the clamping assembly 1.

[0058] Among them, the gasket 23 can be round, square, or polygonal.

[0059] Bolt 21 can also be replaced by a combination of bolts, studs and nuts.

[0060] The washer 23, the head of the bolt 21, and the nut 22 can be formed separately and then assembled, or they can be formed by integral molding.

[0061] like Figure 2 , Figure 3 and Figure 4 As shown, in one embodiment, the clamping assembly 1 is formed with a spherical groove 1a, and the gasket 23 is formed with a spherical protrusion that mates with the spherical groove 1a and is fitted into the spherical groove 1a through the spherical protrusion.

[0062] In this embodiment, the spherical protrusion and the spherical groove 1a cooperate to make the gasket 23 and the clamping assembly 1 abut against each other through the spherical surface.

[0063] In one embodiment, the clamping assembly 1 has a spherical protrusion, and the gasket 23 has a spherical groove opposite to the spherical protrusion, and is fitted onto the spherical protrusion through the spherical groove.

[0064] In this embodiment, the spherical protrusion and the spherical groove cooperate to make the gasket 23 and the clamping assembly 1 abut against each other through the spherical surface.

[0065] It should be understood that the washer 23 can be fitted onto the threaded section of the bolt 21, or it can be arranged circumferentially around the bolt 21. Specifically, as shown... Figure 2 As shown, in one embodiment, the washer 23 is fitted onto the threaded section of the bolt 21 and is in contact with the head of the bolt 21 through a plane.

[0066] By fitting the washer 23 onto the threaded section of the bolt 21, the position of the washer 23 does not need to be controlled during the clamping process of the bolt 21 and nut 22 clamping the two clamping components 1. The washer 23 can automatically fit the clamping component 1. By fitting the head of the bolt 21 and the washer 23 together through a plane, the contact area between the washer 23 and the head of the bolt 21 can be increased, and the static and dynamic load distribution between the head of the bolt 21 and the washer 23 can be made more uniform.

[0067] It should be understood that clamping assembly 1 can be a bracket, clamping block, or clamping seat, etc., capable of clamping. Specifically, for example... Figure 1 and Figure 3 As shown, in one embodiment, the clamping assembly 1 includes a clamping plate 11 and a clamping member 12. The clamping plate 11 is used to abut against the web of the rail 3. The clamping member 12 includes a first clamping block 121 and a second clamping block 122. The first clamping block 121 abuts against the side of the clamping plate 11 away from the rail 3. The second clamping block 122 is connected to the first clamping block 121 and is disposed below the bottom of the rail 3, and abuts against the bottom of the rail 3. The threaded end of the bolt 21 is rotatably inserted through the two second clamping blocks 122, and the head of the bolt 21 and the nut 22 abut against the opposite sides of the two second clamping blocks 122 in the two clamping assemblies 1, respectively.

[0068] When it is necessary to reinforce the rail 3, the clamping plate 11 is attached to the web of the rail 3, so that the second clamping block 122 slides and attaches to the bottom of the rail 3, so that the first clamping block 121 abuts against the side of the clamping plate 11 away from the rail 3. The threaded end of the bolt 21 is passed through the two second clamping blocks 122, and the nut 22 is threadedly connected to the bolt 21. The bolt 21 or the nut 22 is rotated to clamp the two second clamping blocks 122, and the two clamping plates 11 are clamped by the two second clamping blocks 122.

[0069] When installing the clamping assembly 1, the two second clamping blocks 122 are abutted against the bottom of the rail 3. The second clamping blocks 122 can be positioned by abutting against the rail 3. At the same time, when clamping the two clamping assemblies 1, the second clamping blocks 122 abutting against the bottom of the rail 3 can restrict the clamping assembly 1 from moving freely relative to the bottom of the rail.

[0070] It should be understood that notches and slots can be provided on the second clamping block 122 so that the threaded end of the bolt 21 can pass through the second clamping block 122 via the notches and slots. Specifically, for example... Figure 3 As shown, in one embodiment, the second clamping block 122 has a through hole 1b and a spherical groove 1a that are connected. The inner diameter of the through hole 1b is larger than the outer diameter of the bolt 21. The spherical groove 1a is located on the side of the through hole 1b away from the rail 3. The threaded section of the bolt 21 passes through the second clamping block 122 via the spherical groove 1a and the through hole 1b.

[0071] In this embodiment, by providing through hole 1b and spherical groove 1a, when it is necessary to pass the bolt 21 through the second clamping block 122, the threaded section of the bolt 21 passes through the second clamping block 122 in sequence via spherical groove 1a and through hole 1b.

[0072] To achieve insulation between the first clamping block 121 and the clamping plate 11, therefore, as follows Figure 1As shown, in one embodiment, the first clamping block 121 has a slot 1c on the side opposite to the clamping plate 11; the clamping member 12 also includes an insulating block 123, which is inserted into the slot 1c, and the first clamping block 121 abuts against the clamping plate 11 via the insulating block 123.

[0073] The first clamping block 121 and the clamping plate 11 are abutted by an insulating block 123. The insulating block 123 can achieve the abutment between the first clamping block 121 and the clamping plate 11 while also providing insulation.

[0074] The second clamping block 122 can be insulated from the bottom of the rail 3 using insulating adhesive, insulating pads, and insulating gaskets 23.

[0075] After bolt 21 and nut 22 are tightened, nut 22 may rotate relative to bolt 21, causing loosening between nut 22 and bolt 21. Therefore, as follows: Figure 1 As shown, in one embodiment, the rail non-destructive reinforcement device further includes a limiting component 4, which is connected to the first clamping block 121 and / or the second clamping block 122. The limiting component 4 has a limiting groove 4a relative to the nut 22 and is fitted onto the nut 22 through the limiting groove 4a to limit the rotation of the nut 22 relative to the limiting component 4.

[0076] After the nut 22 is threadedly connected to the bolt 21, the limiting component 4 is fitted onto the nut 22 through the limiting groove 4a. The limiting groove 4a and the nut 22 are engaged to limit the nut 22 and prevent the nut 22 from rotating relative to the second clamping block 122, thus preventing the nut 22 from loosening.

[0077] The limiting component 4 can be rotatably connected to the first clamping block 121 and the second clamping block 122 through various means, such as sliding connection, bolt 21 connection, and snap-fit ​​connection. Specifically, for example... Figure 1 and Figure 3 As shown, in one embodiment, the clamping member 12 further includes two fixing plates 124, which are spaced apart on the side of the first clamping block 121 away from the rail 3 and connect the first clamping block 121 and / or the second clamping block 122; the limiting component 4 is rotatably connected to the two fixing plates 124 and connects the first clamping block 121 and / or the second clamping block 122 through the two fixing plates 124.

[0078] After the nut 22 and bolt 21 are pre-tightened, the limiting component 4 is rotated so that the limiting component 4 is sleeved on the nut 22. The nut 22 is limited by the rotating limiting component 4. In order to facilitate the connection between the limiting component 4 and the first clamping block 121 and the second clamping block 122, two fixing plates 124 are provided. The connection between the limiting component 4 and the two fixing plates 124 is realized to connect the limiting component 4 with the first clamping block 121 and / or the second clamping block 122.

[0079] The limiting component 4 and the fixed plate 124 can be rotatably connected by a rotating shaft, a rotating pin and a rotating bearing; the limiting component 4 can be a limiting bracket, a limiting strip, a limiting block and a limiting seat, etc.

[0080] The limiting groove 4a can mate with each side of the nut 22. In this case, the limiting assembly 4 needs to slide along the axial direction of the bolt 21 to connect the fixing plate 124. To achieve the limiting of the nut 22 while the limiting assembly 4 rotates to connect the fixing plate 124, the following is required: Figure 1 As shown, in one embodiment, the limiting groove 4a passes through the side of the limiting component 4 away from the rotation axis of the limiting component 4, and the inner wall of the limiting groove 4a can fit against the two parallel outer walls of the nut 22.

[0081] During the rotation of the limiting component 4, the other sidewalls of the limiting groove 4a will not contact the nut 22, thus avoiding interference with the rotation of the limiting component 4 when the other sidewalls of the limiting component 4 rotate and come into contact with the nut 22.

[0082] In order to achieve a fit between the nut 22 and the second clamping block 122, in one embodiment, the connecting assembly 2 further includes a washer 24, which is disposed between the nut 22 and the second clamping block 122 and is fitted onto the threaded section of the bolt 21.

[0083] Because the installation space under some rails 3 is limited, in one embodiment, the thickness of the second clamping block 122 located under rail 3 is 25-35mm. Specifically, the thickness of the second clamping block 122 located under rail 3 is 30mm, but the thickness of the second clamping block 122 located under rail 3 is not limited to this.

[0084] In this embodiment, by limiting the thickness of the second clamping block 122 located below the rail 3 to 25-35mm, the second clamping block 122 can smoothly pass through the rail 3 with a small installation space below, so that the rail non-destructive reinforcement device can reinforce more types of rail 3.

[0085] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A non-destructive rail reinforcement device, characterized in that, include: Two clamping assemblies are disposed on both sides of the rail; and A connecting assembly includes a bolt, a nut, and a washer. The threaded section of the bolt is rotatably inserted through two clamping assemblies. The nut is threadedly connected to the bolt. The washer is located between the head of the bolt and the clamping assembly, and / or disposed between the nut and the clamping assembly. The washer and the clamping assembly abut against each other via a spherical surface.

2. The rail non-destructive reinforcement device according to claim 1, characterized in that: The clamping assembly has a spherical groove, and the gasket has a spherical protrusion that mates with the spherical groove, and is fitted into the spherical groove through the spherical protrusion.

3. The rail non-destructive reinforcement device according to claim 1, characterized in that: The clamping assembly has a spherical protrusion, and the gasket has a spherical groove opposite to the spherical protrusion, and is fitted onto the spherical protrusion through the spherical groove.

4. The rail non-destructive reinforcement device according to claim 1, characterized in that: The washer is fitted onto the threaded section of the bolt and is in contact with the head of the bolt through a plane.

5. The rail non-destructive reinforcement device according to claim 2, characterized in that: The clamping assembly includes a clamping plate and a clamping member. The clamping plate is used to abut against the web of the rail. The clamping member includes a first clamping block and a second clamping block. The first clamping block abuts against the side of the clamping plate away from the rail. The second clamping block is connected to the first clamping block and is disposed below the bottom of the rail, abutting against the bottom of the rail. The threaded end of the bolt is rotatably inserted through the two second clamping blocks, and the head of the bolt and the nut respectively abut against the opposite side of the two second clamping blocks in the two clamping assemblies.

6. The rail non-destructive reinforcement device according to claim 5, characterized in that: The second clamping block has a through hole and a spherical groove connected to each other. The inner diameter of the through hole is larger than the outer diameter of the bolt, and the spherical groove is located on the side of the through hole away from the rail. The threaded section of the bolt passes through the second clamping block via the spherical groove and through hole.

7. The rail non-destructive reinforcement device according to claim 5, characterized in that: The first clamping block has a slot on the side opposite to the clamping plate; The clamping member further includes an insulating block, which is inserted into the slot, and the first clamping block abuts against the clamping plate via the insulating block.

8. The rail non-destructive reinforcement device according to claim 5, characterized in that: The rail non-destructive reinforcement device also includes a limiting component, which is connected to the first clamping block and / or the second clamping block. The limiting component has a limiting groove relative to the nut and is fitted onto the nut through the limiting groove to limit the rotation of the nut relative to the limiting component.

9. The rail non-destructive reinforcement device according to claim 8, characterized in that: The clamping member further includes two fixing plates, which are spaced apart on the side of the first clamping block away from the rail and connect the first clamping block and / or the second clamping block. The limiting component is rotatably connected to the two fixing plates, and is connected to the first clamping block and / or the second clamping block via the two fixing plates; The limiting groove passes through the side of the limiting component away from the rotation axis of the limiting component, and the inner wall of the limiting groove can fit against the two parallel outer walls of the nut.

10. The rail non-destructive reinforcement device according to claim 5, characterized in that: The thickness of the second clamping block located below the rail is 25-35mm.

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