A pop-up high-speed railway active rail holding device

Abstract

The present application discloses a pop-up type high-speed railway active rail-holding device, which relates to the field of track safety, and comprises a mounting seat, wherein the mounting seat is fixedly connected to the bottom of a train chassis, and two clamping arms are slidably connected to the mounting seat along the width direction of the rail, and the two clamping arms are arranged opposite to each other, and a clamping assembly for clamping the rail is arranged at one end of the clamping arm away from the mounting seat; a clamping spring for driving the clamping arm to approach the rail is arranged on the mounting seat; the clamping arm slides to drive the clamping assembly to move to the side of the rail; a limiting assembly for limiting the sliding of the clamping arm is also arranged on the mounting seat; the present application arranges the limiting assembly and the clamping assembly, so that when the train needs to enhance its anti-derailment capability, the limiting of the limiting assembly is released, so that the clamping arm can be extended out of the mounting seat under the action of the clamping spring, and then the clamping assembly clamps the rail to resist the lateral load, thereby reducing the risk of train derailment.

Description

Technical Field

[0001] The present application relates to the field of track safety, and in particular to a pop-up high-speed railway active track holding device. Background Art

[0002] In the development of high-speed rail technology, ensuring high-speed rail driving safety has always been the top priority. At present, my country's high-speed rail operators usually choose emergency stop to deal with emergencies such as snowstorms, blizzards, earthquakes or mudslides. If the train is running at high speed, it is difficult to slow down to a safe speed in a short time. Therefore, in order to ensure the driving safety of high-speed trains, it is necessary to install a driving auxiliary device. The device is designed to effectively prevent the train from derailing when the train encounters sudden danger or deceleration, thereby reducing the risk of accidents and improving the safety of passengers.

[0003] Such as the utility model patent of application number CN202021894866.9, it discloses a kind of train anti-derail device, anti-derail system, including base plate, train wheel, first distance sensor below base plate between two train wheels, second distance sensor and anti-derail assembly; Under the anti-derail device working state, permanent magnet is adsorbed on track, and train derailment can be prevented. Under the normal working state of train, exit the anti-derail working state, avoid the problem that traditional anti-derail device can not completely avoid friction with track when train is running normally or turning.

[0004] The above technology prevents train derailment by adsorbing permanent magnets on the track, but it can only solve the train derailment incident caused by train wheel jumping on the track. However, when the high-speed train is suddenly subjected to lateral load, the friction between the permanent magnet and the track is difficult to resist the lateral force, and the anti-derailment conditions are relatively simple. Summary of the invention

[0005] In order to effectively resist lateral forces and prevent train derailment, the present application provides a pop-up high-speed railway active track holding device.

[0006] The present application provides a pop-up high-speed railway active rail holding device, which adopts the following technical solution:

[0007] A pop-up high-speed railway active rail-holding device comprises a mounting seat, wherein the mounting seat is fixedly connected to the bottom of a train chassis, and two clamping arms are slidably connected to the mounting seat along the width direction of the rail, and the two clamping arms are arranged opposite to each other, and a clamping assembly for clamping the rail is provided at one end of the clamping arm away from the mounting seat; a clamping spring for driving the clamping arm to approach the rail is provided on the mounting seat; the clamping arm slides to drive the clamping assembly to move to the side of the rail; and a limit assembly for limiting the sliding of the clamping arm is also provided on the mounting seat.

[0008] Optionally, the clamping assembly includes a front clamping jaw and a rear clamping jaw, the rear clamping jaw is located between the front clamping jaw and the mounting seat; the front clamping jaw is rotatably connected to the clamping arm, and the rotation axis is arranged along the length direction of the rail, the rear clamping jaw is slidably connected to the clamping arm along the length direction of the clamping arm, and the clamping arm is also provided with a driving assembly for driving the front clamping jaw to rotate to clamp the rail.

[0009] Optionally, a sliding groove is provided on the clamping arm along its length direction, a sliding sleeve is slidably connected in the sliding groove, and the rear clamping claw is fixedly connected to the sliding sleeve.

[0010] Optionally, the driving assembly includes a gear, a rack and two limit springs, the gear is coaxially fixedly connected to the front clamping jaw, the rack is meshed with the gear and is slidably connected in the clamping arm along the length direction of the clamping arm; the rack is fixedly connected to the sliding sleeve, and the two limit springs are respectively connected to both sides of the sliding sleeve along the length direction of the clamping arm, one of the limit springs is used to drive the sliding sleeve away from the front clamping jaw, and the other limit spring is used to drive the sliding sleeve close to the front clamping jaw.

[0011] Optionally, the limit assembly includes a limiter and two limit rods, the two limit rods are respectively fixedly connected to the two clamping arms, and the limiter is rotatably connected to the mounting seat; the rotation axis of the limiter is arranged in the vertical direction, and a limit groove for the limit rod to be inserted is opened on the limiter in the vertical direction, and the limiter is rotated to make the limit rod disengage from the limit groove; the mounting seat is also provided with a motor for driving the limiter to rotate.

[0012] Optionally, a roller is rotatably connected to the mounting seat, and the rotation axis of the roller is arranged in the vertical direction; a pull rope is wound and fixedly connected to the roller, and the other end of the pull rope is fixedly connected to the limit rod, and the roller rotates to reel in or loosen the pull rope; the roller is coaxially and fixedly connected to the motor output shaft.

[0013] Optionally, a guide block is fixedly connected to the mounting seat, and the guide block is provided with a guide groove along the width direction of the rail, and one end of the limiting rod passes through the guide groove and is inserted into the limiting groove.

[0014] Optionally, the mounting seat is rotatably connected to a balancing block, and the balancing block is installed at the bottom of the train; the rotation axis of the balancing block is arranged in a horizontal direction; two connecting rods are rotatably connected to the balancing block, and the rotation axis of the connecting rods is arranged in a horizontal direction; one end of the connecting rod is passed through the mounting seat in a vertical direction.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] The present application arranges a limit assembly and a clamping assembly so that when the train needs to enhance its anti-derailment capability, the limit of the limit assembly can be released, and the clamping arm can be extended out of the mounting seat under the action of the clamping spring. Then the clamping assembly clamps the rail to resist the lateral load, thereby reducing the risk of train derailment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the installation of a pop-up high-speed railway active rail holding device of the present application;

[0018] Figure 2 This is an overall structural diagram of a pop-up high-speed railway active rail holding device of the present application;

[0019] Figure 3 yes Figure 1 A cross-sectional view of the clamping assembly;

[0020] Figure 4 yes Figure 1 Cross-sectional view of the center limiter assembly.

[0021] Description of reference numerals:

[0022] 11. Balance block; 12. Mounting seat; 13. Connecting rod; 21. Clamping arm; 211. Sliding groove; 22. Front clamping jaw; 23. Rear clamping jaw; 24. Sliding sleeve; 25. Guide block; 251. Guide groove; 26. Clamping spring; 31. Gear; 32. Rack; 33. Limit spring; 41. Limiter; 411. Limit groove; 42. Limit rod; 43. Motor; 44. Roller; 45. Pull rope. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-4 This application is described in further detail.

[0024] The embodiment of the present application discloses a pop-up type high-speed railway active rail-holding device, which includes a mounting seat 12, which is fixedly connected to the bottom of the train chassis, and the mounting seat 12 is telescopically and slidably connected to two clamping arms 21 along the width direction of the rail, and the two clamping arms 21 are arranged opposite to each other, one on the left and one on the right; at the same time, a clamping spring 26 for driving the clamping arm 21 to approach the rail is provided on the mounting seat 12, and the two ends of the clamping spring 26 are respectively connected to the mounting seat 12 and the clamping arm 21, and the telescopic direction is arranged along the horizontal direction. In the initial state, a limit assembly for limiting the sliding of the clamping arm 21 is provided on the mounting seat 12, and a clamping assembly for clamping the rail is provided at one end of the clamping arm 21; when it is necessary to clamp the rail to resist the lateral load, the limit of the limit assembly is cancelled, so that the clamping arm 21 is close to the rail, and the clamping assembly can clamp the rail.

[0025] In an embodiment of the present application, the limit assembly includes a limiter 41, a motor 43 and two limit rods 42, and the two limit rods 42 are respectively fixedly connected to the two clamping arms 21; the limiter 41 is rotatably connected to the mounting seat 12, and the rotation axis of the limiter 41 is arranged along the vertical direction. The motor 43 is fixedly connected to the mounting seat 12 and the output shaft is coaxially fixedly connected to the limiter 41, and a limit groove 411 is opened on the limiter 41 along the vertical direction for the limit rod 42 to be inserted.

[0026] In the initial state, the limit rod 42 is inserted into the limit groove 411. At this time, the limiting clamping spring 26 received in the limit groove 411 cannot drive the clamping arm 21 to slide; when the limit needs to be released, the motor 43 drives the limiter 41 to rotate, so that the limit rod 42 is disengaged from the limit groove 411, and the movement path of the limit rod 42 is no longer blocked; at this time, the clamping arm 21 slides under the action of the clamping spring 26, so that the clamping assembly moves to the vicinity of the rail for clamping.

[0027] In order to enhance the sliding stability of the clamping arm 21, a guide block 25 is further provided on the mounting seat 12. The guide block 25 has a guide groove 251 along the width direction of the rail. One end of the limiting rod 42 passes through the guide groove 251 and is inserted into the limiting groove 411. When the clamping arm 21 starts to slide under the action of the clamping spring 26, the limiting rod 42 slides in the guide groove 251.

[0028] In the embodiment of the present application, the clamping assembly includes a front clamping jaw 22 and a rear clamping jaw 23, the front clamping jaw 22 is rotatably connected to the clamping arm 21, and the rear clamping jaw 23 is located between the front clamping jaw 22 and the mounting seat 12; a sliding groove 211 is opened on the clamping arm 21 along its own length direction, and a sliding sleeve 24 is slidably connected in the sliding groove 211, and the rear clamping jaw 23 is fixedly connected to the sliding sleeve 24, and the rotation axes of the front clamping jaw 22 and the rear clamping jaw 23 are both arranged along the length direction of the rail. At the same time, a clamping assembly for driving the front clamping jaw 22 and the rear clamping jaw 23 to rotate to clamp the rail is also provided on the clamping arm 21.

[0029] In this embodiment, the driving assembly includes a gear 31, a rack 32 and two limit springs 33. The two limit springs 33 are respectively arranged on both sides of the sliding sleeve 24 to limit the position of the sliding sleeve 24 in the sliding groove 211; the gear 31 is fixedly connected to the rotating shaft of the front clamp 22, and the rack 32 is fixedly connected to the sliding sleeve 24 and meshes with the gear 31.

[0030] When the clamping arm 21 is extended under the action of the clamping spring 26, the front clamping jaw 22 first abuts the rail, and then rotates and crosses the rail; during the rotation of the front clamping jaw 22, the gear 31 rotates and drives the rack 32 to move, and the movement of the rack 32 changes the position of the sliding sleeve 24, thereby forcing the two limit springs 33 to compress or extend; after the front clamping jaw 22 crosses the rail, the two limit springs 33 drive the sliding sleeve 24 to reset, and in this process, the rack 32 slides and drives the gear 31 to rotate, thereby driving the front clamping jaw 22 to rotate and clamp the rail, and at the same time, the rear clamping jaw 23 will also reset and clamp the rail under the action of the limit spring 33.

[0031] In order to facilitate the retraction of the clamping arm 21 and release the clamping of the clamping assembly at a later time, a winding roller 44 is also rotatably connected to the mounting seat 12, and the rotation axis of the winding roller 44 is arranged in the vertical direction, and it is fixedly connected to the output shaft of the motor 43; a pull rope 45 is wound and fixedly connected to the winding roller 44, and the other end of the pull rope 45 is fixedly connected to the limit rod 42; when the clamping arm 21 needs to be retracted, the motor 43 drives the winding roller 44 to rotate to reel in the pull rope 45, thereby forcing the clamping spring 26 to be compressed and the clamping arm 21 is retracted.

[0032] Finally, in order to ensure that the device is in a horizontal state as a whole and prevent the clamping assembly from being unable to clamp the rail, a balancing block 11 is rotatably connected to the center of gravity of the mounting seat 12. The balancing block 11 is fixedly installed on the bottom of the train. Two connecting rods 13 are rotatably connected to the balancing block 11. The rotation axis of the connecting rod 13 is arranged along the length direction of the rail; the other end of the connecting rod 13 passes through the mounting seat 12 in the vertical direction; therefore, no matter how the balancing block 11 is tilted, the mounting seat 12 will always remain horizontal under the action of gravity.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pop-up high-speed railway active rail holding device, characterized in that: The invention comprises a mounting seat (12), wherein the mounting seat (12) is fixedly connected to the bottom of a train chassis, and two clamping arms (21) are slidably connected to the mounting seat (12) along the width direction of the rail, and the two clamping arms (21) are arranged opposite to each other, and one end of the clamping arm (21) away from the mounting seat (12) is provided with a clamping assembly for clamping the rail; the mounting seat (12) is provided with a clamping spring (26) for driving the clamping arm (21) to approach the rail; the clamping arm (21) slides to drive the clamping assembly to move to the side of the rail; and the mounting seat (12) is also provided with a limit assembly for limiting the sliding of the clamping arm (21); The clamping assembly comprises a front clamping jaw (22) and a rear clamping jaw (23), wherein the rear clamping jaw (23) is located between the front clamping jaw (22) and the mounting seat (12); the front clamping jaw (22) is rotatably connected to the clamping arm (21), and the rotation axis is arranged along the length direction of the rail; the rear clamping jaw (23) is slidably connected to the clamping arm (21) along the length direction of the clamping arm (21); and the clamping arm (21) is also provided with a driving assembly for driving the front clamping jaw (22) to rotate so as to clamp the rail; The clamping arm (21) is provided with a sliding groove (211) along its length direction, a sliding sleeve (24) is slidably connected in the sliding groove (211), and the rear clamping claw (23) is fixedly connected to the sliding sleeve (24); The driving assembly comprises a gear (31), a rack (32) and two limit springs (33); the gear (31) is coaxially fixedly connected with the front clamping jaw (22); the rack (32) is meshed with the gear (31) and is slidably connected in the clamping arm (21) along the length direction of the clamping arm (21); the rack (32) is fixedly connected with the sliding sleeve (24); the two limit springs (33) are respectively connected to two sides of the sliding sleeve (24) along the length direction of the clamping arm (21); one of the limit springs (33) is used to drive the sliding sleeve (24) away from the front clamping jaw (22), and the other limit spring (33) is used to drive the sliding sleeve (24) close to the front clamping jaw (22); The limit assembly comprises a limiter (41) and two limiter rods (42), the two limiter rods (42) are respectively fixedly connected to the two clamping arms (21), and the limiter (41) is rotatably connected to the mounting seat (12); the rotation axis of the limiter (41) is arranged along the vertical direction, and a limiter groove (411) is provided on the limiter (41) along the vertical direction for the limiter rod (42) to be inserted, and the limiter (41) is rotated to make the limiter rod (42) disengage from the limiter groove (411); the mounting seat (12) is also provided with a motor (43) for driving the limiter (41) to rotate.

2. The pop-up high-speed railway active rail holding device according to claim 1, characterized in that: A roller (44) is rotatably connected to the mounting seat (12), and the rotation axis of the roller (44) is arranged in the vertical direction; a pull rope (45) is wound and fixedly connected to the roller (44), and the other end of the pull rope (45) is fixedly connected to the limit rod (42), and the roller (44) rotates to reel in or loosen the pull rope (45); the roller (44) is coaxially and fixedly connected to the output shaft of the motor (43).

3. The pop-up high-speed railway active rail holding device according to claim 2, characterized in that: A guide block (25) is fixedly connected to the mounting seat (12), and a guide groove (251) is provided on the guide block (25) along the width direction of the rail. One end of the limiting rod (42) passes through the guide groove (251) and is then inserted into the limiting groove (411).

4. The pop-up high-speed railway active rail holding device according to claim 1, characterized in that: The mounting seat (12) is rotatably connected to a balancing block (11), and the balancing block (11) is mounted on the bottom of the train; the rotation axis of the balancing block (11) is arranged in the horizontal direction; the balancing block (11) is rotatably connected to two connecting rods (13), and the rotation axis of the connecting rods (13) is arranged in the horizontal direction; one end of the connecting rod (13) is vertically penetrated on the mounting seat (12).

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