High-strength steel rail damping fastener for rail transit

Abstract

The invention relates to the technical field of steel rail matching, in particular to a high-strength steel rail damping fastener for rail transit, which comprises a sleeper and a steel rail, the sleeper is fixedly connected with the steel rail, a base plate is fixedly arranged on the sleeper, and a reinforcing device for reinforcing the connection of the sleeper and the steel rail is fixedly arranged on the base plate. The overall firmness of the device is enhanced through a base plate arranged on a sleeper and a reinforcing device arranged between the base plate and a steel rail, meanwhile, through a sliding groove formed in a protection plate and a sliding plate sliding in the sliding groove, when a worker installs the device, a nut on a limiting rod is screwed, the limiting rod is controlled to move upwards, and the safety of the device is improved. And in the upward moving process, the limiting rods push the sliding plates to move along the sliding grooves in the rising process through the obliquely-arranged bottom ends, so that the clamping plates at the other ends of the sliding plates are attached to the bottom ends of the steel rails, and the reinforcing and damping functions are completed.

Description

Technical Field

[0001] The invention relates to the technical field of rail matching, in particular to a high-strength rail vibration-damping fastener for rail transportation. Background Art

[0002] Railway tracks are referred to as rails, rails, and tracks, etc. They are mainly used on railways and work with switches to allow trains to run without turning. Railway tracks usually consist of two parallel steel rails, which are fixed on sleepers, with ballast under the sleepers, among which railway rail vibration-damping fasteners are fastened by pads, support plates, rubber pads, spiral nails and other railway accessories. Railway tracks are referred to as rails, rails, and tracks, etc. They are mainly used on railways and work with switches to allow trains to run without turning. Railway tracks usually consist of two parallel steel rails, which are fixed on sleepers, with ballast under the sleepers, among which railway rail vibration-damping fasteners are fastened by pads, support plates, rubber pads, spiral nails and other railway accessories.

[0003] A search of CN207121759U disclosed a rail vibration-damping fastener, including a pad, an elastomer, a support plate, a positioning block and a fastening mechanism; a positioning column is provided on the pad, a first through hole is opened on the positioning block, and the positioning block is sleeved on the outer side of the positioning column through the first through hole; the fastening mechanism includes a fastener and a locking cover plate, the fastener is connected to the positioning column, and the fastener presses the positioning block through the locking cover plate; one side of the support plate is connected to the elastomer to fix the elastomer at the waist of the rail, and the other side of the support plate rests on the positioning block; the contact surface between the support plate and the positioning block is an inclined surface, and the top end of the inclined surface is inclined toward the side close to the rail.

[0004] The above-mentioned publicly disclosed vibration-damping fasteners are provided with two layers of iron pads, which are vulcanized into one with rubber, and the stiffness thereof cannot be adjusted, which has certain limitations. During the load action process, the vulcanized bonding parts are very easy to debond and peel off, which seriously affects the vibration-damping function and poses a hidden danger to operational safety. Once peeling and damage occur, the entire fastener needs to be replaced, and the maintenance cost is high. After long-term use of the railway rail vibration-damping fasteners, the fixing bolts will gradually loosen, and then the fixing effect on the support plate will gradually decrease, affecting the support and use of the railway rails.

[0005] Therefore, it is necessary to provide high-strength rail vibration-damping fasteners for rail transit to solve the above problems. Summary of the invention

[0006] Based on the above-mentioned problems existing in the prior art, the problem to be solved by the present application is: the above-mentioned publicly disclosed vibration-damping fastener is provided with two layers of iron pads, which are vulcanized into one with rubber, and its stiffness cannot be adjusted, which has certain limitations; during the load action process, the vulcanized bonding is very easy to debond and peel off, which seriously affects the performance of the vibration-damping function and poses a hidden danger to operational safety. Once there is peeling and damage, the entire fastener needs to be replaced, and the maintenance cost is high. After long-term use of the railway rail vibration-damping fastener, the fixing bolts will gradually loosen, and then the fixing effect of the support plate will gradually decrease, affecting the support and use of the railway rails.

[0007] The technical solution adopted by the present application to solve the technical problem is: a high-strength rail vibration-damping fastener for rail transit, comprising a sleeper and a rail, wherein the sleeper and the rail are fixedly connected, and a pad is fixedly arranged on the sleeper, and a reinforcing device for reinforcing the connection between the sleeper and the rail is fixedly arranged on the pad;

[0008] The reinforcement device includes a positioning groove opened on the sleeper, the pad is fixedly arranged in the litigation positioning groove, the pad is fixedly arranged with a fixing plate, two mutually parallel protective plates are fixedly arranged on the fixing plate, a snap plate is movably arranged on the protective plate, a notch is opened on the protective plate, and the snap plate is located on the notch, a limit rod is slidably arranged on the snap plate, a thread is provided at the upper end of the limit rod, a nut is threadedly connected to the limit rod, and each of the protective plates is provided with a locking unit for preventing the rail from lateral movement during use.

[0009] Preferably, the sleeper is arranged in a concave shape with a lower middle and higher ends, and the protrusions at both ends of the sleeper are oriented toward the lower end of the sleeper. The sleeper is made of a mixture of wood and reinforced concrete.

[0010] Preferably, positioning holes are provided at both ends of the fixing plate, bolts are rotatably provided on the positioning holes, a buffer plate is slidably provided at the connection between the fixing plate and the bolts, and the bolts penetrate the buffer plate and are connected to the sleepers.

[0011] Preferably, connecting holes are provided on adjacent ends of the two sections of the rails, and the two sections of the rails are reinforced by connecting plates, connecting rods are fixedly arranged between the connecting plates on both sides, the connecting rods pass through the connecting holes, and the connecting plates abut against the side walls of the rails.

[0012] Preferably, the locking unit includes a slide groove provided on the protective plate, a slide plate is slidably arranged in the slide groove, two mutually parallel brackets are fixedly arranged on the end of the slide plate away from the notch, and a rotating shaft is rotatably arranged between the two brackets, a clamping plate is fixedly arranged on the rotating shaft, and the notch is inclined, the bottom end of the limit rod is inclined, and a reset mechanism for controlling the restoration of the slide plate is provided in the slide groove.

[0013] Preferably, the reset mechanism includes an inner groove opened in the slide groove, a long plate is fixedly arranged on the side wall of the slide plate, the long plate is slidably connected to the inner groove, and a spring is fixedly arranged between the long plate and the bottom of the inner groove.

[0014] Preferably, one end of the slide plate close to the notch is inclined.

[0015] Preferably, the protective plates on both sides are arranged in a mirror-image manner and are tilted, and the two protective plates are evenly distributed on both sides of the rail, and the protective plates are against the bottom end of the rail.

[0016] Preferably, the clamping plate is arranged in a U-shape, and two sides of the clamping plate are in contact with the side walls of the bottom end of the rail.

[0017] Preferably, a gasket is slidably provided at the connection between the nut and the limiting rod, and the gasket is made of carbon steel with strong toughness.

[0018] The beneficial effects of the present application are as follows: the high-strength rail vibration-damping fastener for rail transit provided by the present application achieves enhanced overall firmness of the device through a pad arranged on the sleeper and a reinforcement device arranged between the pad and the rail, and at the same time, through a slide groove arranged in the protective plate and a slide plate sliding in the slide groove, the staff can turn the nut on the limit rod to control the limit rod to move upward when installing the device, and the limit rod pushes the slide plate to move along the slide groove during the upward movement through the inclined bottom end, so that the card plate on the other end of the slide plate fits with the bottom end of the rail, thereby completing the function of reinforcement and shock absorption.

[0019] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the reinforcement device of the present invention;

[0022] Figure 3 It is a schematic diagram of the fixing plate structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the internal structure of the fixing plate of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the skateboard of the present invention;

[0025] Figure 6 It is a side view structural schematic diagram of the present invention;

[0026] Figure 7 It is a schematic diagram of the connecting plate structure of the present invention;

[0027] Figure 8 It is a schematic diagram of the sleeper structure of the present invention.

[0028] In the figure: 1. sleeper; 2. rail; 3. pad; 4. positioning groove; 41. fixing plate; 42. protective plate; 421. slide groove; 422. slide plate; 423. bracket; 424. rotating shaft; 425. clamping plate; 43. notch; 44. limit rod; 45. nut; 5. positioning hole; 51. bolt; 52. buffer plate; 6. connecting hole; 61. connecting plate; 62. connecting rod; 7. inner groove; 71. long plate; 72. spring; 8. gasket. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0031] Reference Figure 1-Figure 3 , a high-strength rail vibration-damping fastener for rail transit, comprising a sleeper 1 and a rail 2, wherein the sleeper 1 is fixedly connected to the rail 2, and a pad 3 is fixedly arranged on the sleeper 1, and a reinforcing device for reinforcing the connection between the sleeper 1 and the rail 2 is fixedly arranged on the pad 3;

[0032] The reinforcement device includes a positioning groove 4 opened on the sleeper 1, a pad 3 is fixedly arranged in the litigation positioning groove 4, a fixing plate 41 is fixedly arranged on the pad 3, two mutually parallel protective plates 42 are fixedly arranged on the fixing plate 41, a snap plate is movably arranged on the protective plate 42, a notch 43 is opened on the protective plate 42, and the snap plate is located on the notch 43, a limit rod 44 is slidably arranged on the snap plate, a thread is arranged at the upper end of the limit rod 44, a nut 45 is threadedly connected to the limit rod 44, and each protective plate 42 is provided with a locking unit for preventing the rail 2 from lateral movement during use.

[0033] Reference Figure 2-Figure 4 The sleeper 1 is arranged in a concave shape with a lower middle and higher ends, and the protrusions at both ends of the sleeper 1 are oriented toward the lower end of the sleeper 1. The sleeper 1 is made of a mixture of wood and reinforced concrete. By arranging the sleeper 1 in a concave shape, when a train passes through the sleeper 1, part of the pressure of the train on the sleeper 1 acts on the stones laid under the bottom end of the sleeper 1, and part of it is offset by the sleeper 1 itself. Then, by adopting the sleeper 1 made of a mixture of tough wood and concrete, the toughness of the sleeper 1 itself is improved.

[0034] Reference Figure 4-Figure 6 , positioning holes 5 are provided at both ends of the fixing plate 41, bolts 51 are rotatably provided on the positioning holes 5, a buffer plate 52 is slidably provided at the connection between the fixing plate 41 and the bolts 51, the bolts 51 penetrate the buffer plate 52 and are connected to the sleeper 1, and the positioning holes 5 provided on the fixing plate 41 enable the staff to place the fixing plate 41 in a suitable position when assembling the device, and then pass the bolts 51 through the positioning holes 5 to achieve fixed positioning of the fixing plate 41, thereby ensuring the stability of the device during use and improving the safety of the train during operation.

[0035] Reference Figure 6-Figure 8 , connecting holes 6 are provided on the adjacent ends of the two sections of the rail 2, and the two sections of the rail 2 are reinforced by a connecting plate 61, and a connecting rod 62 is fixedly arranged between the connecting plates 61 on both sides, and the connecting rod 62 passes through the connecting hole 6, and the connecting plate 61 is against the side wall of the rail 2. Through the connecting hole 6 set on the rail 2, when the staff completes laying the rail 2 on the sleeper 1, the connecting plate 61 is placed on both sides of the connection of the two sections of the rail 2, and then the two connecting plates 61 are fixed to the rail 2 through the connecting rod 62. It is simple and convenient, and it is also convenient for the staff to partially disassemble and repair the entire device, saving maintenance time and improving work efficiency.

[0036] Reference Figure 3-Figure 5The locking unit includes a slide groove 421 opened on the protective plate 42, a slide plate 422 is slidably arranged in the slide groove 421, two parallel brackets 423 are fixedly arranged on one end of the slide plate 422 away from the notch 43, and a rotating shaft 424 is rotatably arranged between the two brackets 423, a clamping plate 425 is fixedly arranged on the rotating shaft 424, and the notch 43 is inclined, the bottom end of the limit rod 44 is inclined, and a reset mechanism for controlling the restoration of the slide plate 422 is provided in the slide groove 421. Through the slide groove 421 arranged on the protective plate 42, when the staff twists the limit rod 44 to reinforce the device, the limit rod 44 pushes the slide plate 422 to move along the slide groove 421, and in the process of the movement of the slide plate 422, the clamping plate 425 arranged on the other end of the slide plate 422 fits more closely with the bottom of the rail 2, thereby improving the stability of the device.

[0037] Reference Figure 3-Figure 5 The reset mechanism includes an inner groove 7 opened in the slide groove 421, a long plate 71 is fixedly arranged on the side wall of the slide plate 422, the long plate 71 is slidably connected to the inner groove 7, and a spring 72 is fixedly arranged between the long plate 71 and the bottom of the inner groove 7. When the train passes, the pressure on the rail 2 is reduced. At this time, the thrust of the rail 2 on the card plate 425 is reduced, and the elastic force generated by the spring 72 is reset through the long plate 71, so that the card plate 425 is in a relaxed state, thereby improving the service life of the device.

[0038] Reference Figure 4-Figure 6 One end of the slide plate 422 near the notch 43 is inclined. By setting one end of the slide plate 422 to be inclined, the slide plate 422 can be pushed to slide during the movement of the limit rod 44, thereby avoiding the slide plate 422 and the limit rod 44 from getting stuck.

[0039] Reference Figure 1-Figure 3 The protective plates 42 on both sides are arranged in a mirror-image manner and are evenly distributed on both sides of the rail 2. The protective plates 42 are against the bottom end of the rail 2. By arranging the protective plates 42 in an inclined manner, the slide plate 422 slidingly arranged inside the slide plate 422 can improve the tightness between the slide plate 42 and the rail 2 as the moving distance increases, thereby improving the safety of the device.

[0040] Reference Figure 5-Figure 7 The card plate 425 is arranged in a U shape, and both sides of the card plate 425 are in contact with the side walls of the bottom end of the rail 2. By arranging the card plate 425 in a U shape, the fit between the card plate 425 and the rail 2 is improved, and the firmness of the device is improved.

[0041] Reference Figure 1-Figure 3A gasket 8 is slidably provided at the connection between the nut 45 and the limit rod 44, and the gasket 8 is made of carbon steel with strong toughness. By setting the gasket 8 between the nut 45 and the limit rod 44, the friction between the limit rod 44 and the nut 45 is increased, thereby improving the overall stability and safety of the device. The specific scheme is as follows: when using the device, the staff first installs the device at a predetermined position, and by setting the sleeper 1 in a concave shape, it is achieved that when the train passes through the sleeper 1, part of the pressure of the train on the sleeper 1 acts on the stones laid under the bottom end of the sleeper 1, and part of it is offset by the sleeper 1 itself. Then, by using the sleeper 1 made of a mixture of tough wood and concrete, the toughness of the sleeper 1 itself is improved. The positioning holes 5 set on the fixing plate 41 enable the staff to place the fixing plate 41 in a suitable position when assembling the device, and then pass the bolts 51 through the positioning holes 5 to achieve fixed positioning of the fixing plate 41, ensuring the stability of the device during use. Qualitative, improve the safety of train operation, when the staff completes laying the rails 2 on the sleepers 1, they place the connecting plates 61 on both sides of the connection between the two sections of the rails 2, and then fix the two connecting plates 61 and the rails 2 through the connecting rods 62. It is simple and convenient, and it is also convenient for the staff to partially disassemble and repair the entire device, saving maintenance time and improving work efficiency. In the process of twisting the limit rod 44 to reinforce the device, the limit rod 44 pushes the slide plate 422 to move along the slide groove 421, and in the process of the movement of the slide plate 422, the card plate 425 set on the other end of the slide plate 422 fits more closely with the bottom of the rail 2, thereby improving the stability of the device.

[0042] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary, and within the spirit of the present invention, the technical features in the above embodiments or in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0043] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-strength rail vibration-damping fastener for rail transit, comprising a sleeper (1) and a rail (2), characterized in that: The sleeper (1) and the rail (2) are fixedly connected, a pad (3) is fixedly arranged on the sleeper (1), and a reinforcing device for reinforcing the connection between the sleeper (1) and the rail (2) is fixedly arranged on the pad (3); The reinforcing device comprises a positioning groove (4) provided on the rail sleeper (1); the pad (3) is fixedly arranged in the positioning groove (4); a fixing plate (41) is fixedly arranged on the pad (3); two mutually parallel protective plates (42) are fixedly arranged on the fixing plate (41); a snap plate is movably arranged on the protective plate (42); a notch (43) is provided on the protective plate (42); the snap plate is located on the notch (43); a limiting rod (44) is slidably arranged on the snap plate; a thread is provided at the upper end of the limiting rod (44); a nut (45) is threadedly connected to the limiting rod (44); and each of the protective plates (42) is provided with a locking unit for preventing the rail (2) from lateral movement during use.

2. The high-strength rail vibration-damping fastener for rail transit according to claim 1, characterized in that: The sleeper (1) is arranged in a concave shape with a lower middle and higher ends, and the protrusions at both ends of the sleeper (1) face the lower end of the sleeper (1). The sleeper (1) is made of a mixed material of wood and reinforced concrete.

3. The high-strength rail vibration-damping fastener for rail transit according to claim 1, characterized in that: Positioning holes (5) are provided at both ends of the fixing plate (41), bolts (51) are rotatably provided on the positioning holes (5), a buffer plate (52) is slidably provided at the connection between the fixing plate (41) and the bolts (51), and the bolts (51) penetrate the buffer plate (52) and are connected to the sleeper (1).

4. The high-strength rail vibration-damping fastener for rail transit according to claim 1, characterized in that: A connecting hole (6) is provided on one adjacent end of the two sections of the steel rail (2), and the two sections of the steel rail (2) are reinforced by a connecting plate (61). A connecting rod (62) is fixedly provided between the connecting plates (61) on both sides, and the connecting rod (62) passes through the connecting hole (6), and the connecting plate (61) abuts against the side wall of the steel rail (2).

5. The high-strength rail vibration-damping fastener for rail transit according to claim 1, characterized in that: The locking unit comprises a slide groove (421) provided on the protective plate (42), a slide plate (422) being slidably arranged in the slide groove (421), two mutually parallel brackets (423) being fixedly arranged on one end of the slide plate (422) away from the notch (43), and a rotating shaft (424) being rotatably arranged between the two brackets (423), a clamping plate (425) being fixedly arranged on the rotating shaft (424), and the notch (43) being inclined, and the bottom end of the limiting rod (44) being inclined, and a reset mechanism for controlling the restoration of the slide plate (422) being arranged in the slide groove (421).

6. The high-strength rail vibration-damping fastener for rail transit according to claim 5, characterized in that: The reset mechanism comprises an inner groove (7) opened in the slide groove (421), a long plate (71) is fixedly arranged on the side wall of the slide plate (422), the long plate (71) is slidably connected to the inner groove (7), and a spring (72) is fixedly arranged between the long plate (71) and the bottom of the inner groove (7).

7. The high-strength rail vibration-damping fastener for rail transit according to claim 6, characterized in that: One end of the slide plate (422) close to the notch (43) is arranged in an inclined manner.

8. The high-strength rail vibration-damping fastener for rail transit according to claim 7, characterized in that: The protection plates (42) on both sides are arranged in a mirror-image manner and are inclined, and the two protection plates (42) are evenly distributed on both sides of the steel rail (2), and the protection plates (42) are butted against the bottom end of the steel rail (2).

9. The high-strength rail vibration-damping fastener for rail transit according to claim 5, characterized in that: The clamping plate (425) is arranged in a U shape, and two sides of the clamping plate (425) are in contact with the side wall of the bottom end of the steel rail (2).

10. The high-strength rail vibration-damping fastener for rail transit according to claim 1, characterized in that: A gasket (8) is slidably provided at the connection between the nut (45) and the limiting rod (44), and the gasket (8) is made of carbon steel with strong toughness.

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