Steel beam type air transportation rail fastener

Abstract

The invention discloses a steel beam type air transportation rail fastener which comprises a fastener body and a steel rail beam, the fastener body comprises an iron base plate arranged at the bottom, a rail bearing table is arranged on the steel rail beam, and side inserting T-shaped grooves are formed in the two ends of the rail bearing table. A first T-shaped bolt upwards penetrating through the iron base plate is arranged in the side inserting T-shaped groove, the upper end of the first T-shaped bolt is sequentially sleeved with a first flat washer, a spring washer and a first nut, a connector groove is formed in the middle of the rail bearing table, and a connector block capable of being embedded into the connector groove is arranged at the bottom of the iron base plate. According to the steel beam type air transportation rail fastener, the laying characteristic of an air rail fastener is utilized, holes are drilled in the rail bearing table welded to the steel rail beam through the overhead steel rail beam, the iron base plate is directly matched with the steel rail beam, transverse force is transmitted, the rail bearing face does not need to be machined complexly, and the steel beam type air transportation rail fastener is simple in structure and convenient to use. And the possibility of bolt shearing caused by transverse force is reduced.

Description

Technical Field

[0001] The invention relates to the field of aerial rails, and in particular to a steel beam type aerial transport rail fastener. Background Art

[0002] Generally, railway fasteners are divided into shoulder-type and non-shoulder-type. The shoulder of the fastener with shoulder is usually cast with prestressed reinforced concrete due to its complex structure. The function of the shoulder is to resist the lateral force from the rail when the vehicle is running. The fastener without shoulder has no sleeper shoulder. The way to resist the lateral force of the rail is usually to increase the friction between the iron plate and the sleeper, and then tighten the iron plate with thick bolts and high torque. In the steel beam aerial transport track, the fasteners that clamp the rails are directly fixed to the punched steel track beam with bolts. The bolts resist most of the lateral force of the rail when the vehicle is running, which will increase the risk of the bolts being sheared. Summary of the invention

[0003] The purpose of the present invention is to provide a steel beam type aerial transport track fastener, which utilizes the laying characteristics of aerial track fasteners, relies on the overhead steel track beam, and punches holes on the rail support platform welded on the steel track beam, so that the iron pad can directly cooperate with the steel track beam to transmit lateral force. The rail support surface does not need to be complicatedly processed, and the possibility of bolt shearing caused by lateral force is reduced.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a steel beam type aerial transport rail fastener, including a fastener body and a steel rail beam, the fastener body including an iron pad arranged at the bottom, a rail support platform is arranged on the steel rail beam, side T-slots are arranged at both ends of the rail support platform, a first T-bolt passing upward through the iron pad is arranged in the side T-slot, a first flat washer, a spring washer and a first nut are sequentially sleeved on the upper end of the first T-bolt, an interface groove is arranged in the middle of the rail support platform, and an interface block capable of being embedded in the interface groove is arranged at the bottom of the iron pad.

[0005] Preferably, a buffer pad is provided between the iron pad and the rail support platform.

[0006] Preferably, the fastener body also includes an elastic bar, a rail pad, a gauge block and a second T-bolt; the second T-bolt passes through the elastic bar from the bottom of the iron pad upward and is sequentially sleeved with a second flat washer and a second nut; iron shoulders are symmetrically arranged on the iron pad, the outer side of the gauge block abuts against the iron shoulder, and the inner side is pressed against the rail shoulder surface by the elastic bar.

[0007] Preferably, a countersunk hole penetrating the iron shoulder is provided at the bottom of the iron backing plate, and an embedding groove for limiting the rotation of the T-shaped head of the second T-shaped bolt is provided at the bottom of the countersunk hole.

[0008] Preferably, a support portion is provided at the outer end of the iron shoulder; and a depression for supporting the side limbs of the spring bar is provided at the top end of the support portion.

[0009] Preferably, both ends of the rail pad are provided with limiting openings which engage with the iron shoulder.

[0010] Preferably, positioning grooves are provided on the upper sides of both ends of the rail pad; and positioning blocks inserted into the positioning grooves are provided on the bottom side of the gauge block.

[0011] Preferably, a weight-reducing groove is provided at the bottom of the interface block.

[0012] Preferably, a welding groove is provided on the bottom edge of the rail support platform.

[0013] According to the above technical scheme, the rail fasteners in the present invention utilize the laying characteristics of empty rail fasteners, rely on the overhead steel rail beams, and drill holes on the rail bearing platforms welded on the steel rail beams, so that the iron pads can directly cooperate with the steel rail beams to transmit lateral forces. The rail bearing surfaces do not need to be complicatedly processed, and the possibility of bolt shearing caused by lateral forces is reduced.

[0014] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is an overall structural diagram of a preferred embodiment of a steel beam type aerial transport rail fastener; Figure 2 It is a half-section view of a preferred embodiment of a steel beam type aerial transport rail fastener; Figure 3 It is a structural schematic diagram of a preferred embodiment of a steel track beam welded with a rail support platform; Figure 4 It is a schematic diagram of the overall structure of a preferred embodiment of an iron backing plate; Figure 5 It is a schematic diagram of the main structure of a preferred embodiment of the iron pad; Figure 6 It is a schematic diagram of the overall structure of a preferred embodiment of the gauge block; Figure 7 It is a schematic diagram of the overall structure of a preferred embodiment of the rail pad; Figure 8It is a schematic diagram of the overall structure of a preferred embodiment of a buffer pad.

[0017] Description of Reference Numerals 1-steel track beam; 2-rail support platform; 3-iron pad; 4-interface block; 5-side T-slot; 6-buffer pad; 7-first T-bolt; 8-elastic bar; 9-second T-bolt; 10-second nut; 11-iron shoulder; 12-second flat washer; 13-gauge block; 14-rail pad; 15-first flat washer; 16-spring washer; 17-rail; 18-support part; 19-interface groove; 20-depression; 21-weight reduction groove; 22-embedded groove; 23-countersunk hole; 24-welding groove; 25-positioning block; 26-limiting opening; 27-positioning groove; 28-first nut. DETAILED DESCRIPTION

[0018] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0019] In the present invention, unless otherwise stated, directional words contained in terms such as "up, down, left, right, front, back, inside, outside" merely represent the orientation of the terms in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the terms.

[0020] See also Figure 1-8 The steel beam type aerial transport rail fastener shown includes a fastener body and a steel rail beam 1, the fastener body includes an iron pad 3 arranged at the bottom, a rail support platform 2 is arranged on the steel rail beam 1, side T-slots 5 are arranged at both ends of the rail support platform 2, a first T-bolt 7 that passes upward through the iron pad 3 is arranged in the side T-slot 5, a first flat washer 15, a spring washer 16 and a first nut 28 are sequentially sleeved on the upper end of the first T-bolt 7, an interface groove 19 is arranged in the middle of the rail support platform 2, and an interface block 4 that can be embedded in the interface groove 19 is arranged at the bottom of the iron pad 3.

[0021] Through the implementation of the above technical scheme, the rail fasteners utilize the laying characteristics of the empty rail fasteners, rely on the overhead steel track beam 1, and punch holes on the rail support platform 2 welded on the steel track beam 1, so that the iron pad 3 directly cooperates with the steel track beam 1 to transmit the lateral force. The lateral force of the rail is transmitted to the rail support platform 2 through the interface block 4 under the iron pad, and then transmitted to the steel track beam 1. The rail support surface does not need to be complicatedly processed, and the possibility of bolt shearing caused by the lateral force is reduced.

[0022] In this embodiment, a buffer plate 6 is provided between the iron plate 3 and the rail support platform 2. The material of the buffer plate 6 is a rubber-plastic mixed elastomer, and no recycled rubber is used.

[0023] The buffer plate 6 increases the lateral friction between the iron plate 3 and the rail support 2, and has a vertical buffering effect. When necessary, embossing can be performed on the upper and lower surfaces of the buffer plate 6. The surface of the buffer plate 6 should not have missing corners and burrs greater than 2 mm.

[0024] In this embodiment, in order to further provide a fastener body, the fastener body also includes an elastic bar 8, a rail pad 14, a gauge block 13 and a second T-bolt 9; the second T-bolt 9 passes through the elastic bar 8 from the bottom of the iron pad 3 upward and is sequentially sleeved with a second flat washer 12 and a second nut 10; the iron pad 3 is symmetrically provided with an iron shoulder 11, the outer side of the gauge block 13 abuts against the iron shoulder 11, and the inner side is pressed against the shoulder surface of the rail 17 by the elastic bar 8.

[0025] In the fastener body, the material of the iron pad 3 and the gauge block 13 is QT450-10, and the performance of pig iron for ductile iron should comply with the provisions of GB / T 1412. The rail pad 14 is a rubber pad, the raw material of which is mainly composed of natural rubber or synthetic rubber. The static stiffness of the rubber pad should be 60kN / mm±10kN / mm, and the dynamic-static stiffness ratio of the rubber pad should not be greater than 2.0.

[0026] See also Figure 7 As shown, a plurality of upper grooves are arranged on the upper side of the rubber pad, and a plurality of lower grooves are arranged on the lower side. The upper grooves and the lower grooves are arranged at intervals, which is conducive to drainage and avoids water accumulation in the fasteners.

[0027] In the fastener body, a countersunk hole 23 penetrating the iron shoulder 11 is provided at the bottom of the iron backing plate 3, and an embedding groove 22 for limiting the rotation of the T-shaped head of the second T-shaped bolt 9 is provided at the bottom of the countersunk hole 23. When installing the second T-shaped bolt 9, the second T-shaped bolt 9 is inserted into the countersunk hole 23 from bottom to top in advance, and then the spring bar 8, the second flat washer 12 and the second nut 10 are placed, and the countersunk position of the head countersunk hole 23 of the second T-shaped bolt 9 is rotated 90°, and then lifted and completely embedded in the embedding groove 22, and the second nut 10 is locked.

[0028] In the present invention, according to the need for height adjustment, an under-rail fine-tuning pad and an under-iron pad height adjustment pad can be added. According to the need for rule adjustment, gauge blocks 13 with different numbers can be replaced, wherein the gauge block number P represents the left and right thickness of the gauge block as P mm. See Table 1 below for the left and right position adjustment configuration of the rail 17, and Table 2 for the fastener height adjustment configuration.

[0029] Single rail left and right position adjustment (mm) Outer gauge block number Inner gauge block number -5 15 5 -4 14 6 -3 13 7 -2 12 8 -1 11 9 0 10 10 +1 9 11 +2 8 12 +3 7 13 +4 6 14 +5 5 15 Table 1 Rail height adjustment amount (mm) Thickness of the fine-tuning pad under the rail (mm) Iron plate lower height plate thickness mm 0 0 0 +1～+10 1～10 0 +11～+20 1～10 10 Table 2 In this embodiment, a support portion 18 is provided at the outer end of the iron shoulder 11; a recess 20 for supporting the side limbs of the spring bar 8 is provided at the top of the support portion 18. Through such a configuration, the side limbs of the spring bar 8 are supported in the recess 20 to avoid outward displacement during buckling, thereby increasing buckling stability.

[0030] In this embodiment, both ends of the rail pad 14 are provided with limit openings 26 engaged with the iron shoulder 11. By such a configuration, the rail pad 14 is prevented from slipping off from the rail 17 direction.

[0031] In this embodiment, positioning grooves 27 are provided on the upper sides of both ends of the rail pad 14, and positioning blocks 25 inserted into the positioning grooves 27 are provided on the bottom side of the gauge block 13. With such a configuration, the assembly stability of the gauge block 13 is improved to prevent it from slipping off from the rail 17.

[0032] In this embodiment, a weight-reducing groove 21 is provided at the bottom of the interface block 4. Through such a configuration, the fastener as a whole is made lighter.

[0033] In this embodiment, a welding groove 24 is provided at the bottom edge of the rail support platform 2. The rail support platform 2 is welded to the steel track beam 1 at the position of the welding groove 24 through the provided welding groove 24.

[0034] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0035] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0036] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A steel beam type aerial transport rail fastener, characterized in that: The steel beam type aerial transport rail fastener comprises a fastener body and a steel rail beam (1), the fastener body comprises an iron pad (3) arranged at the bottom, a rail support platform (2) is arranged on the steel rail beam (1), side T-shaped slots (5) are arranged at both ends of the rail support platform (2), a first T-shaped bolt (7) passing upward through the iron pad (3) is arranged in the side T-shaped slot (5), a first flat washer (15), a spring washer (16) and a first nut (28) are sequentially sleeved on the upper end of the first T-shaped bolt (7), an interface groove (19) is arranged in the middle of the rail support platform (2), and an interface block (4) capable of being embedded in the interface groove (19) is arranged at the bottom of the iron pad (3).

2. The steel beam type aerial transportation rail fastener according to claim 1, characterized in that: A buffer pad (6) is provided between the iron pad (3) and the rail support platform (2).

3. The steel beam type aerial transportation rail fastener according to claim 1, characterized in that: The fastener body also includes a spring bar (8), a rail underlay plate (14), a track gauge block (13) and a second T-bolt (9); The second T-bolt (9) passes through the elastic bar (8) from the bottom of the iron backing plate (3) upwards and is then sleeved with a second flat washer (12) and a second nut (10) in sequence; The iron backing plate (3) is symmetrically provided with an iron shoulder (11), the outer side of the gauge block (13) abuts against the iron shoulder (11), and the inner side is buckled onto the shoulder surface of the rail (17) through the elastic bar (8).

4. The steel beam type aerial transportation rail fastener according to claim 3, characterized in that: The bottom of the iron backing plate (3) is provided with a countersunk hole (23) penetrating the iron shoulder (11), and the bottom of the countersunk hole (23) is provided with an embedding groove (22) for limiting the rotation of the T-shaped head of the second T-shaped bolt (9).

5. The steel beam type aerial transportation rail fastener according to claim 3, characterized in that: The outer end of the iron shoulder (11) is provided with a support portion (18); The top end of the support portion (18) is provided with a recess (20) for supporting the side limbs of the elastic bar (8).

6. The steel beam type aerial transportation rail fastener according to claim 3, characterized in that: Both ends of the rail under-pad (14) are provided with limiting openings (26) that engage with the iron shoulder (11).

7. The steel beam type aerial transportation rail fastener according to claim 3, characterized in that: Positioning grooves (27) are provided on the upper sides of both ends of the rail bottom pad (14); A positioning block (25) inserted into the positioning groove (27) is provided on the bottom side of the track gauge block (13).

8. The steel beam type aerial transportation rail fastener according to claim 1, characterized in that: The bottom of the interface block (4) is provided with a weight-reducing groove (21).

9. The steel beam type aerial transportation rail fastener according to claim 1, characterized in that: A welding groove (24) is provided at the bottom edge of the rail support platform (2).

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