Elastic sleeper structure

Abstract

The utility model provides an elastic sleeper structure, which relates to the technical field of railroad sleepers and comprises a railroad sleeper, a buffer block, a buffer pad and an elastic strip. The upper side face of the railroad sleeper is connected with a supporting plate through bolts. A rail is placed on the upper side surface of the rubber base plate; a screw spike is screwed on the upper side surface of the buffer block; a flat washer is nested on the outer side surface of the screw spike; a spring is welded on the lower side surface of the buffer block; baffles are connected to the positions, close to the left and right ends, of the upper side faces of the railroad sleepers through bolts. A railroad sleeper is adhered to the lower side surface of the buffer pad; through the arrangement of the supporting plate, the spring, the buffering pad and the buffering block, elastic buffering connection between the sleeper and the rail is achieved, the service life of the railroad sleeper is prolonged, and the problem that a concrete sleeper is damaged and broken due to the fact that a traditional railroad sleeper and a traditional steel rail do not have a buffering structure is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway sleepers, and more specifically, relates to an elastic sleeper structure. Background Art

[0002] A sleeper is a concrete structure located beneath a railway track, supporting the track and bearing train loads. It maintains the correct position of the rails and transfers the pressure of the train to the trackbed and subgrade, ensuring the stability and safety of the rails. Currently, to reduce railway vibration noise and ensure stable load-bearing between the sleepers and the trackbed, railway sleepers have elastic cushions on their lower surfaces to absorb the impact of passing trains on the trackbed. However, traditional sleepers are typically rigidly connected to the rails placed on their upper sides. The impact load of a passing train directly acts on the sleepers through the rails. The lack of a buffer structure between the sleepers and rails causes compression at both ends of the concrete sleeper, resulting in structural bending and deformation. Long-term impact and extrusion can cause cracking in the concrete at the center of the sleeper, damaging the sleeper structure and reducing its service life. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an elastic sleeper structure to solve the problem that traditional railway sleepers and rails do not have a buffer structure, resulting in concrete sleepers being damaged and broken under pressure.

[0004] The utility model provides an elastic sleeper structure, comprising a railway sleeper; an elastic bottom pad is installed on the lower side of the railway sleeper, and a support plate is connected to the upper side of the railway sleeper by bolts; the structure also includes a buffer block, a buffer pad and an elastic strip; a rubber pad is bonded to the upper side of the buffer block, a rail is placed on the upper side of the rubber pad, a spiral spike is screwed to the upper side of the buffer block, a flat washer is nested on the outer side of the spiral spike, a spring is welded to the lower side of the buffer block, a railway sleeper is welded to the lower side of the spring, a baffle is connected to the upper side of the railway sleeper near the left and right ends by bolts; the railway sleeper is bonded to the lower side of the buffer pad; the bottom end of the elastic strip is fitted to the upper side of the iron pad, and the top end of the elastic strip is fitted to the lower side of the flat washer.

[0005] In at least some embodiments, the upper side surface of the railway sleeper is provided with an open groove running through from front to back near the left end and the right end, the left groove wall and the right groove wall of the opening groove of the railway sleeper are provided with a sliding groove, and a circular hole groove is provided at the center of the bottom of the opening groove of the railway sleeper, and a spring is welded to the bottom of the circular hole groove of the railway sleeper.

[0006] In at least some embodiments, the buffer blocks are in two groups, and the left and right sides of each group of buffer blocks are provided with protruding ear plate structures. The two groups of ear plates of the buffer blocks are respectively embedded in the slide grooves of the left and right groove walls of the opening groove of the railway sleeper. The upper side of the buffer block is provided with a groove, and the rail is embedded in the groove. Threaded holes are provided on the left and right sides of the top of the buffer block groove, and spiral spikes are screwed into the threaded holes of the buffer block.

[0007] In at least some embodiments, the support plate is made of high-strength steel plate, and the support plate has a concave structure. Triangular plates are provided on the inner side of the concave structure of the support plate near the left and right ends.

[0008] In at least some embodiments, the elastic base pad is made of polyurethane rubber, and a large number of ridges are arranged equidistantly from left to right on the lower side of the elastic base pad.

[0009] In at least some embodiments, the buffer pad is made of rubber, and an arc-shaped protruding structure is provided on the upper side of the buffer pad.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. In the utility model, an elastic buffer structure is formed between the railway sleeper and the buffer block by a spring and a buffer pad. When the rail is impacted and compressed, the elastic force of the spring and the rubber buffer pad is used to consume the load impact of the train passing through the railway sleeper. The rigid connection structure of the traditional sleeper and the rail is abandoned, and an elastic buffer connection between the sleeper and the rail is realized, which effectively avoids the bending and fracture of the concrete sleeper caused by pressure at both ends of the railway sleeper, thereby improving the service life of the railway sleeper.

[0012] 2. In the utility model, a high-strength steel support plate and two sets of triangular plate structures on the inner side of the concave structure of the support plate are used to enable the support plate to structurally shape the concrete railway sleeper, so that the support plate supports the railway sleeper, strengthens the structural strength of the railway sleeper, and improves the structural life of the railway sleeper. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from the side.

[0015] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0016] Figure 4 It is a front view structural schematic diagram of the present utility model.

[0017] Figure 5 This utility model Figure 4 Schematic diagram of the enlarged structure of part B in the middle.

[0018] Figure 6 It is a front view cross-sectional structural schematic diagram of the utility model.

[0019] Figure 7 This utility model Figure 6 Schematic diagram of the enlarged structure of part A in the middle.

[0020] Figure 8 It is a schematic diagram of the cutaway structure of the present utility model.

[0021] Figure 9 This utility model Figure 8 Schematic diagram of the enlarged structure of part C in the middle.

[0022] Figure numerals: 1, support plate; 2, railway sleeper; 3, elastic base pad; 4, railway rail; 5, iron pad; 6, spiral spike; 7, buffer block; 8, buffer pad; 9, rubber pad; 10, elastic bar; 11, spring; 12, flat washer; 13, baffle. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] like Figures 1-9 As shown, the utility model provides an elastic sleeper structure, including a railway sleeper 2; an elastic base pad 3 is installed on the lower side of the railway sleeper 2, and the upper side of the railway sleeper 2 is connected to a support plate 1 by bolts; it also includes a buffer block 7, a buffer pad 8 and an elastic bar 10; a rubber pad 9 is bonded to the upper side of the buffer block 7, and a rail 4 is placed on the upper side of the rubber pad 9, a spiral spike 6 is screwed on the upper side of the buffer block 7, and a flat washer 12 is nested on the outer side of the spiral spike 6, a spring 11 is welded to the lower side of the buffer block 7, and the lower side of the spring 11 is welded to the railway sleeper 2, and a baffle 13 is connected to the upper side of the railway sleeper 2 near the left and right ends by bolts; the lower side of the buffer pad 8 is bonded to the railway sleeper 2; the bottom end of the elastic bar 10 is attached to the upper side of the iron pad 5, and the top of the elastic bar 10 is attached to the lower side of the flat washer 12.

[0025] In the embodiment of the present disclosure, an open groove running through from front to back is provided on the upper side surface of the railway sleeper 2 near the left and right ends, and a slide groove is provided on the left and right groove walls of the opening groove of the railway sleeper 2. A circular hole groove is provided at the center of the bottom of the opening groove of the railway sleeper 2, and a spring 11 is welded to the bottom of the circular hole groove of the railway sleeper 2. The spring 11 elastically pushes and supports the buffer block 7 at the top. When the train wheels squeeze the rails 4, the spring 11 supports the buffer block 7 through the elastic force to buffer the impact.

[0026] In the embodiment of the present disclosure, there are two groups of buffer blocks 7, and the left and right sides of each group of buffer blocks 7 are provided with protruding ear plate structures. The two groups of ear plates of the buffer block 7 are respectively embedded in the sliding grooves of the left and right groove walls of the opening groove of the railway sleeper 2, so that the rail 4 pushes the buffer block 7 to move downward vertically, and the vertically placed spring 11) stabilizes the force buffering of the buffer block 7. The upper side of the buffer block 7 is provided with a groove, and the rail 4 is embedded in the groove to prevent the rail 4 from shifting left and right. Threaded holes are provided on the left and right sides of the top of the groove of the buffer block 7, and the spiral spike 6 is screwed into the threaded hole of the buffer block 7. In the process of the spiral spike 6 penetrating into the threaded hole of the buffer block 7, the nut of the spiral spike 6 pushes the flat washer 12 to squeeze the iron pad 5 fitted with the bottom end of the elastic bar 10, so that the two groups of iron pads 5 squeeze the rail 4 into the groove of the buffer block 7.

[0027] In the embodiment of the present disclosure, the support plate 1 is made of high-strength steel plate, and the support plate 1 is a concave structure. Triangular plates are provided on the inner side of the concave structure of the support plate 1 near the left and right ends. The structural stability of the triangular plates enhances the stability of the concave structure of the support plate 1, thereby ensuring that the support plate 1 made of high-strength steel plate provides structural shaping support for the railway sleeper 2 made of concrete, thereby improving the structural strength of the railway sleeper 2 and preventing the railway sleeper 2 from being damaged by compression and bending.

[0028] In the disclosed embodiment, the elastic base pad 3 is made of polyurethane rubber, and a large number of convex strips are arranged evenly spaced from left to right on the lower side of the elastic base pad 3, so that the lower side of the elastic base pad 3 forms an uneven surface structure, which can increase the friction between the elastic base pad 3 and the roadbed, prevent the railway sleeper 2 from sliding laterally on the roadbed under force, and ensure the placement stability of the railway sleeper 2 on the roadbed.

[0029] In the disclosed embodiment, the buffer pad 8 is made of rubber material, and an arc-shaped protrusion structure is provided on the upper side of the buffer pad 8. By utilizing the arc-shaped protrusion of the buffer pad 8, the buffer pad 8 can be better compressed and deformed when impacted by the buffer block 7, and cooperate with the spring 11 to absorb more energy and effectively disperse the impact force.

[0030] The specific usage and function of this embodiment are as follows:

[0031] When the utility model performs elastic buffering work on the sleeper, when the wheels of the train pass the rail 4 placed in the groove on the upper side of the buffer block 7, the gravity impact load of the train squeezes the rail 4 downward. After the rail 4 is compressed, it pushes the buffer block 7 to move vertically downward along the slide groove of the groove wall of the opening of the railway sleeper 2. At this time, the buffer block 7 pushes the spring 11 welded on the lower side. The spring 11 reduces the impact energy of the train on the buffer block 7 through the elastic force. When the lower side of the buffer block 7 contacts the arc convex structure on the upper side of the buffer pad 8, the rubber material buffer The pad 8 performs elastic deformation buffering on the buffer block 7, reducing the impact energy of the buffer block 7 on the railway sleeper 2. When the train wheel leaves the rail 4 placed in the groove on the upper side of the buffer block 7, the spring 11 pushes the buffer block 7 to move vertically upward along the slide groove of the opening groove wall of the railway sleeper 2 until the upper side of the ear plate on the left and right sides of the buffer block 7 contacts the baffle 13 and the lower side of the support plate 1 respectively. At this time, the buffer block 7 drives the rail 4 to return to its position, completing the elastic buffering work between the sleeper and the rail, reducing the impact pressure on the sleeper, and improving the service life of the sleeper.

[0032] All of the above components are mounted, connected, or arranged using conventional mechanical methods, such as welding, threaded connections, and screw connections. The specific structures, models, and coefficients of all components are proprietary technologies, and any method that can achieve the desired effect may be employed. The rails 4, iron pads 5, and spring clips 10 used are all commonly available on the market. Upon purchase, they can be connected and used according to the included instruction manual, so further description is omitted.

[0033] The technical solution of the present invention is not limited to the scope of the embodiments of the present invention, and the technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. An elastic sleeper structure, comprising a railway sleeper (2); an elastic base pad (3) is installed on the lower side of the railway sleeper (2); and a support plate (1) is connected to the upper side of the railway sleeper (2) by bolts; characterized in that: The invention also comprises a buffer block (7), a buffer pad (8) and an elastic bar (10); the upper side of the buffer block (7) is bonded with a rubber pad (9), the upper side of the rubber pad (9) is provided with a rail (4), the upper side of the buffer block (7) is screwed with a spiral spike (6), the outer side of the spiral spike (6) is nested with a flat washer (12), the lower side of the buffer block (7) is welded with a spring (11), the lower side of the spring (11) is welded with a railway sleeper (2), and the upper side of the railway sleeper (2) is connected with a baffle (13) by bolts near the left and right ends; the lower side of the buffer pad (8) is bonded with the railway sleeper (2); the bottom end of the elastic bar (10) is attached to the upper side of the iron pad (5), and the top end of the elastic bar (10) is attached to the lower side of the flat washer (12).

2. The elastic sleeper structure according to claim 1, characterized in that: The upper side surface of the railway sleeper (2) is provided with a front-to-back through-opening groove near the left end and the right end, the left groove wall and the right groove wall of the opening groove of the railway sleeper (2) are provided with a sliding groove, the center of the groove bottom of the opening groove of the railway sleeper (2) is provided with a circular hole groove, and the bottom of the circular hole groove of the railway sleeper (2) is welded with a spring (11).

3. The elastic sleeper structure according to claim 1, characterized in that: The number of the buffer blocks (7) is two groups, and the left and right sides of each group of buffer blocks (7) are provided with protruding ear plate structures. The two groups of ear plates of the buffer blocks (7) are respectively embedded in the slide grooves of the left and right groove walls of the opening groove of the railway sleeper (2). The upper side of the buffer block (7) is provided with a groove, and the rail (4) is embedded in the groove. The left and right sides of the top of the groove of the buffer block (7) are provided with threaded holes, and the spiral spikes (6) are screwed into the threaded holes of the buffer block (7).

4. The elastic sleeper structure according to claim 1, characterized in that: The support plate (1) is made of a high-strength steel plate. The support plate (1) is a concave-shaped structure. Triangular plates are provided on the inner side of the concave-shaped structure of the support plate (1) near the left and right ends.

5. The elastic sleeper structure according to claim 1, characterized in that: The elastic base pad (3) is made of polyurethane rubber, and a large number of convex strips are arranged at equal intervals from left to right on the lower side of the elastic base pad (3).

6. The elastic sleeper structure according to claim 1, characterized in that: The buffer pad (8) is made of rubber material, and an arc-shaped convex structure is provided on the upper side of the buffer pad (8).

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