Clamping plate for reinforcing steel rail

Abstract

The utility model provides a clamping plate for reinforcing a steel rail, belongs to the technical field of steel rails, and aims to solve the problems that in the prior art, threaded holes need to be formed in a steel rail body to fix the clamping plate, the working intensity of workers is increased, and the structure of the steel rail body is damaged. Comprising a clamping plate body, the clamping plate body comprises an abutting face, the abutting face is located at the end, away from a steel rail, of the clamping plate body, the abutting face is provided with a plurality of spherical grooves, and the spherical grooves are formed in the length direction of the clamping plate body at equal intervals. According to the steel rail clamping plate, after the abutting face of the clamping plate body is provided with the spherical groove, the abutting bolt can be screwed into the spherical groove by arranging the support in threaded connection with the abutting bolt on one side of the steel rail, fixing of the clamping plate is achieved, on one hand, the spherical groove can position the abutting bolt to enable the clamping plate to be fixed, and on the other hand, the clamping plate can be fixed. The spherical groove can reduce friction between the abutting bolt and the clamping plate body.

Description

Technical Field

[0001] This utility model belongs to the field of rail technology, specifically relating to a rail reinforcement clamp. Background Technology

[0002] Steel rails are the main component of railway tracks. Their function is to guide the wheels of locomotives and rolling stock, bear the enormous pressure of the wheels, and transmit this pressure to the sleepers. Steel rails must provide the wheels with a continuous, smooth, and least resistance-prone rolling surface. In electrified railways or automatic block signaling sections, steel rails can also serve as track circuits.

[0003] Currently, rails are generally constructed by fixing multiple rails together, for example, by welding. Aluminothermic welding is typically used to weld two rails together to create a seamless track. However, because the weld joints of aluminothermic welds are relatively weak, the welded joints between rails are prone to breakage during heavy-load operation.

[0004] Traditionally, in order to improve the structural strength of the rails at the welded joints between rails, a clamping plate body is usually added to the web of the rail. The clamping plate body is fixed by setting threaded holes in the rail and inserting bolts through the threaded holes in the rail.

[0005] The existing technology has the following shortcomings:

[0006] Threaded holes need to be drilled in the rail body to fix the clamps, which not only increases the workload of the workers, but also damages the structure of the rail body. Utility Model Content

[0007] In view of this, the present invention provides a rail reinforcement clamp to solve the problem in the prior art that it is necessary to open threaded holes in the rail body to fix the clamp, which not only increases the workload of workers, but also damages the structure of the rail body.

[0008] The technical solution adopted in this utility model is as follows:

[0009] A rail reinforcement clamp includes a clamp body, the clamp body includes a mating surface located at the end of the clamp body away from the rail, the mating surface is provided with a plurality of spherical grooves, the plurality of spherical grooves being equidistantly spaced along the length direction of the clamp body.

[0010] The technical scheme is characterized in that the clamping plate body is made of 40Cr steel or other high-quality alloy steel with better performance than 40Cr steel and is manufactured by forging process; the 42CrMo or better alloy steel should be used to manufacture the clamping plate body in the environment with the temperature of-40 DEG C or below; the clamping plate body should be free of rust, smooth, free of burrs, free of oil stains and free of water vapor; in the scheme, the spherical groove is arranged on the abutting surface of the clamping plate body, a support is arranged on one side of the rail and is threadedly connected with the abutting bolt, the abutting bolt is screwed into the spherical groove, and the clamping plate is fixed; on one hand, the spherical groove can position the abutting bolt, so that the clamping plate is fixed; on the other hand, the spherical groove can reduce the friction between the abutting bolt and the clamping plate body.

[0011] Preferably, the top of the abutting surface is provided with an extension boss which extends away from the contact surface.

[0012] The technical scheme is characterized in that the extension boss can increase the rigidity of the clamping plate body.

[0013] Preferably, the clamping plate body comprises a contact surface which contacts the rail waist, and one end of the contact surface is provided with an identification groove which is arranged along the length direction of the clamping plate body.

[0014] The technical scheme is characterized in that the identification groove is used to identify that the clamping plate body is a non-glue clamping plate.

[0015] Preferably, the identification groove comprises a flow guide surface which is arranged on the bottom of the identification groove and is inclined.

[0016] The technical scheme is characterized in that the flow guide surface is used to guide the rainwater in the identification groove and prevent the water from accumulating in the identification groove.

[0017] Preferably, the clamping plate body is provided with a groove at the position corresponding to the rail weld, and an arched reinforcing plate is arranged on the side of the groove away from the rail.

[0018] The technical scheme is characterized in that the groove can accommodate the protruding part of the rail butt joint weld, i.e. avoids the weld, so that the clamping plate body can be more closely attached to the rail waist, the friction between the clamping plate body and the rail waist is increased, and the strength of the clamping plate body in reinforcing the rail is improved; the arched reinforcing plate can increase the thickness of the clamping plate body at the back, so as to ensure the strength of the clamping plate body at the groove.

[0019] A clamping plate body fixing device comprises a bottom plate arranged at the bottom of a rail, vertical plates arranged at both ends of the bottom plate and inclined towards the rail, and the bottom plate and the vertical plates are made of elastic material.

[0020] The top of the vertical plate is provided with a threaded sleeve, a clamping bolt is screwed in the threaded sleeve, and one end of the clamping bolt faces the spherical groove.

[0021] In the technical scheme, it should be noted that in the scheme, the bottom plate will not contact the rail bed, the bottom plate and the vertical plate form a clamp, and the clamp can provide a high-strength screw bolt torque of 950 Nm without deformation; when the clamp body needs to be fixed on the steel rail: first, the rail head and the rail bottom upper surface in the range of 530mm on both sides of the weld are thoroughly polished and rusted (before polishing, the polishing length range should be marked, and the surface is cleaned with a steel wire brush, the surface oil stains are wiped off with a cleaning solvent or a cleaning wet wipe, and the polishing surface is measured with a 1m ruler to determine the key polishing position); after polishing, the bottom plate is placed under the rail, the two threaded sleeves on both sides of the bottom plate are symmetrically arranged on the left and right sides of the steel rail, then the clamp body is placed on the left and right sides of the steel rail, and the left and right clamping bolts are alternately tightened, so that the left and right bolt torques are uniform, until the clamping bolt tightly clamps the clamp body, and in the process of clamping the clamp body by the clamping bolt, the vertical plate is outwardly expanded by the clamping bolt, the outwardly expanded vertical plate gives the clamping bolt a spring force towards the clamp body, so that the fixing effect of the clamp body is better.

[0022] In summary, due to the adoption of the above technical scheme, the beneficial effects of the utility model are:

[0023] 1. In the utility model, after the spherical groove is arranged on the clamping surface of the clamp body, a support which is threadedly connected with the clamping bolt is arranged on one side of the steel rail, the clamping bolt is screwed into the spherical groove, and the clamp is fixed, on the one hand, the spherical groove can position the clamping bolt, so that the clamp is fixed, and on the other hand, the spherical groove can reduce the friction between the clamping bolt and the clamp body;

[0024] 2. In the utility model, the extension boss can increase the rigidity of the clamp body;

[0025] 3. In the utility model, the identification groove is used to identify that the clamp body is a clamp without glue;

[0026] 4. In the utility model, the flow guide surface is used to guide the rainwater in the identification groove to prevent water accumulation in the identification groove;

[0027] 5. In the utility model, the groove can be used to accommodate the protruding part of the weld joint of the steel rail, that is, to avoid the weld joint, so that the clamp body and the rail waist can be more closely attached, the friction between the two is increased, and the strength of the clamp body to reinforce the steel rail is improved; the arched reinforcing plate can increase the thickness of the back of the clamp body to ensure the strength of the clamp body at the groove;

[0028] 6. In the utility model, the bottom plate does not contact the rail bed, the bottom plate and the vertical plate form a clamp, can provide the high strength screw bolt torque of 950 newton meter of screw bolt, and does not produce deformation;When the clamp body needs to be fixed on the steel rail, first, the rail head and the rail bottom upper surface in the length range of 530mm on both sides of the weld are polished thoroughly (before polishing, the polishing length range should be marked, and the surface is cleaned with a steel wire brush, the surface oil stain is wiped with a cleaning solvent or a cleaning wet tissue, and the polishing surface is measured with a 1m ruler to determine the key position of polishing);After polishing, the bottom plate is placed below the rail, the two threaded sleeves on both sides of the bottom plate are symmetrical on the left and right sides of the steel rail, then the clamp body is put into the left and right sides of the steel rail, and the left and right two clamping bolts are alternately tightened, so that the left and right bolt torques are uniform, until the clamping bolt tightly clamps the clamp body, in the process that the clamping bolt tightly clamps the clamp body, since the vertical plate is made of elastic material, the vertical plate is expanded outward by the clamping bolt, the expanded vertical plate gives the clamping bolt a spring force towards the clamp body, so that the fixing effect of the clamp body is better. BRIEF DESCRIPTION OF DRAWINGS

[0029] The utility model will be explained through example and the mode of referring to the drawings, wherein:

[0030] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0031] Figure 2 It is the side view three-dimensional structure schematic diagram of the utility model;

[0032] Figure 3 It is the side view three-dimensional structure schematic diagram of the clamp body of the utility model;

[0033] Among them: 1-steel rail, 2-clamp body, 3-contact surface, 4-clamping surface, 5-identification slot, 6-spherical groove, 7-bottom plate, 8-vertical plate, 9-threaded sleeve, 10-clamping bolt, 11-groove, 12-arch reinforcing plate, 13-flow guide surface, 14-extended boss. DETAILED DESCRIPTION

[0034] To make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in conjunction with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. The components of the utility model embodiment described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] The following detailed description of the embodiments of the present application in the accompanying drawings provided herein is not intended to limit the scope of the present application as claimed, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0036] It should be noted that the embodiments and features in the present application can be combined with each other without conflict.

[0037] It should be noted that: similar labels and letters in the following drawings represent similar items, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0038] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] It should be noted that the embodiments and features in the present application can be combined with each other without conflict. Example 1

[0040] As Figures 1-3 shown, the present application discloses:

[0041] A kind of steel rail reinforcing clamping plate, including clamping plate body 2, the clamping plate body 2 includes the abutting face 4, the abutting face 4 is located at the end of clamping plate body 2 away from steel rail 1, the abutting face 4 is equipped with spherical groove 6, the spherical groove 6 is several, several spherical groove 6 is equidistantly spaced along the length direction of clamping plate body 2.It needs to be explained, clamping plate body 2 uses 40Cr steel or other high-quality alloy steel better than 40Cr steel, and is manufactured using forging process.Environmental temperature is in-40 ℃ and below area should use 42CrMo or more optimal alloy steel manufacturing;The abutting face of clamping plate body 2 and steel rail 1 is combined with no rust spot, smooth and no burr, no oil stain, no water vapor;In the scheme, after setting spherical groove 6 in the abutting face 4 of clamping plate body 2, one support can be set in the side of steel rail 1 and be screwed into spherical groove 6 by being screwed into spherical groove 6 with abutting bolt 10 thread connection, realize the fixation of clamping plate, on the one hand, spherical groove 6 can position abutting bolt 10, so that clamping plate is fixed, on the other hand, spherical groove 6 can reduce the friction between abutting bolt 10 and clamping plate body 2.

[0042] As Figure 1 As shown in the embodiment, the top of the abutting face 4 is provided with an extension boss 14 extending away from the contact surface 3.It needs to be explained that the extension boss 14 can increase the stiffness of the clamping plate body 2.

[0043] As Figure 1 As shown in the embodiment, the clamping plate body 2 includes a contact surface 3 in contact with the web of the steel rail 1, one end of the contact surface 3 is provided with an identification groove 5, and the identification groove 5 is arranged along the length direction of the clamping plate body 2.It needs to be explained that the identification groove 5 is used to identify that the clamping plate body 2 is a non-glue clamping plate.

[0044] As Figure 3 As shown in the embodiment, the identification groove 5 includes a flow guide surface 13 at the bottom of the identification groove 5, and the flow guide surface 13 is inclinedly arranged.It needs to be explained that the flow guide surface 13 is used to guide the rainwater in the identification groove 5 to prevent water accumulation in the identification groove 5.

[0045] As Figure 2 As shown in the embodiment, the clamping plate body 2 is provided with a groove 11 corresponding to the position of the weld of the steel rail 1, and an arc-shaped reinforcing plate 12 is arranged on the side of the groove 11 away from the steel rail 1.It needs to be explained that the groove 11 can be used to accommodate the protruding part of the weld at the butt joint of the steel rail 1, that is, to avoid the weld, so that the clamping plate body 2 and the web can be more closely attached, the friction between the two is increased, and the strength of the clamping plate body 2 to reinforce the steel rail 1 is improved;The arc-shaped reinforcing plate 12 can increase the thickness of the back of the clamping plate body 2, so as to ensure the strength of the clamping plate body 2 at the groove 11. Embodiment 2

[0046] As Figure 1 shown in the figure, the embodiment is based on the embodiment 1, and proposes a clamping plate body fixing device for fixing the clamping plate body 2, which comprises a bottom plate 7 located at the bottom of the rail 1, both ends of the bottom plate 7 are respectively provided with vertical plates 8, the vertical plates 8 are inclined from bottom to top to the direction close to the rail 1, and the bottom plate 7 and the vertical plates 8 are both made of elastic material; the top of the vertical plate 8 is provided with a threaded sleeve 9, a clamping bolt 10 is screwed in the threaded sleeve 9, and one end of the clamping bolt 10 faces the spherical groove 6.

[0047] It should be noted that when it is necessary to fix the clamping plate body 2 on the rail 1: first, the rail head and the upper surface of the rail bottom in the range of 530mm on both sides of the weld are thoroughly polished and rusted (before polishing, the polishing range should be marked, and the surface is cleaned with a steel wire brush, the surface oil stains are wiped off with a cleaning solvent or a cleaning wet wipe, and the polishing surface is measured with a 1m ruler to determine the key polishing position); after polishing, the bottom plate 7 is placed under the rail, the two threaded sleeves 9 on both sides of the bottom plate 7 are symmetrically arranged on the left and right sides of the rail 1, then the clamping plate body 2 is placed on the left and right sides of the rail 1, and the left and right clamping bolts 10 are alternately tightened, so that the left and right bolt torques are uniform, until the clamping bolt 10 tightly clamps the clamping plate body 2, in the process of tightly clamping the clamping plate body 2 by the clamping bolt 10, since the vertical plate 8 is made of elastic material, the vertical plate 8 is expanded outward by the clamping bolt 10, the outwardly expanded vertical plate 8 gives the clamping bolt 10 a spring force towards the clamping plate body 2, so that the fixing effect of the clamping plate body 2 is better.

[0048] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.

[0049] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rail fastening clip, characterised in that, The clamp plate body (2) includes a pressing surface (4) at the end away from the rail (1), and the pressing surface (4) is provided with spherical grooves (6), and the spherical grooves (6) are equidistantly arranged along the length direction of the clamp plate body (2); The clamp plate body (2) is provided with a groove (11) corresponding to the weld of the rail (1), and an arc-shaped reinforcing plate (12) is arranged on the side of the groove (11) away from the rail (1); The fixing device of the auxiliary clamp plate body (2) includes a bottom plate (7) arranged at the bottom of the rail (1), and vertical plates (8) are arranged at both ends of the bottom plate (7), respectively, the vertical plates (8) are inclined from bottom to top towards the rail (1), and the bottom plate (7) and the vertical plates (8) are made of elastic material; the top of the vertical plate (8) is provided with a threaded sleeve (9), the threaded sleeve (9) is internally threaded with a pressing bolt (10), and one end of the pressing bolt (10) faces the spherical groove (6).

2. A rail fastening plate according to claim 1, characterised in that The top of the pressing surface (4) is provided with an extension boss (14) extending away from the contact surface (3).

3. A rail fastening plate according to claim 1, characterised in that The clamp plate body (2) includes a contact surface (3) in contact with the web of the rail (1), and one end of the contact surface (3) is provided with an identification groove (5), and the identification groove (5) is arranged along the length direction of the clamp plate body (2).

4. A rail fastening plate according to claim 3, characterised in that The identification groove (5) includes a flow guide surface (13) at the bottom, and the flow guide surface (13) is arranged obliquely.

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