A track vibration damping fastener replacement device

Abstract

The present invention relates to the technical field of track fastener replacement, specifically a track vibration-damping fastener replacement device, comprising a support frame and a push rod fixed on the upper surface of the support frame, a symmetrical guide cylinder is arranged on the lower surface of the support frame, and a rotating cavity is opened in the support frame, the fixed cylinders of two first electric push rods are inserted into the rotating cavity through bearings, and the piston rod of the first electric push rod is located in the guide cylinder, the nut sleeve is arranged on the lower end surface of the piston rod of the first electric push rod, the lower end surfaces of the symmetrical connecting rotating rods are respectively connected to the fixed cylinders of the first electric push rod, and the symmetrical connecting rotating rods are provided with driven pulleys, and the driving pulleys are rotatably installed in the center position of the rotating cavity through the rotating rod, and the output shaft of the driving motor is connected to the rotating rod. The present invention can improve the efficiency of replacing multiple vibration-damping fasteners on the rail.

Description

Technical Field

[0001] The present invention relates to the technical field of track fastener replacement, and in particular to a track vibration-damping fastener replacement device. Background Art

[0002] The use of fastener systems for vibration reduction in urban rail transit is one of the commonly used vibration reduction measures in track structures. The fastener system is an important component in the track structure. While having the ability to maintain track gauge, resist lateral loads, and provide good insulation performance, it should also provide good elasticity to meet the requirements of vibration reduction performance.

[0003] When multiple track vibration-damping fasteners on both sides of the rail need to be disassembled and replaced, the construction workers need to first remove the anchor bolts on the vibration-damping fasteners, and then remove the washers, spring bars and base plates in sequence, and then install the new or replaced vibration-damping fastener components. Since the anchor bolts are relatively long and are easily rusted to the rails or spring bars after long-term use, manual disassembly and replacement will easily reduce the efficiency of disassembly and replacement of the vibration-damping fasteners and increase the labor of the construction workers. Summary of the Invention

[0004] The object of the present invention is to provide a track vibration-damping fastener replacement device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a track vibration-damping fastener replacement device, comprising a support frame and a push rod fixed on the upper surface of the support frame, a rotation and disassembly mechanism is provided on the lower surfaces of both ends of the support frame, the rotation and disassembly mechanism is mounted on both sides of the rail through the support frame, and is used to disassemble the anchor bolts on the track vibration-damping fastener, a driving sliding mechanism is provided on the support frame and between the rotating and disassembly mechanisms, and the driving sliding mechanism is used to drive the support frame to slide on the rail.

[0006] Preferably, the rotation disassembly mechanism includes a guide cylinder, a first electric push rod, a nut sleeve, a connecting rotating rod, a driven pulley, a driving pulley, a rotating rod and a driving belt, the guide cylinder is symmetrically arranged on the lower surface of the support frame, and a rotating cavity is opened in the support frame, the two fixing cylinders of the first electric push rods are inserted into the rotating cavity through bearings, and the piston rod of the first electric push rod is located in the guide cylinder, the nut sleeve is arranged on the lower end surface of the piston rod of the first electric push rod, the lower end surfaces of the symmetrical connecting rotating rods are respectively connected to the fixing cylinders of the first electric push rod, and the symmetrical connecting rotating rods are sleeved with driven pulleys, the driving pulleys are rotatably installed in the center position of the rotating cavity through the rotating rod, the driving pulleys are connected to the two driven belts through the driving belt, a driving motor is fixed to the upper surface of the support frame, and the output shaft of the driving motor is connected to the rotating rod.

[0007] Preferably, a sliding clamping assembly is provided on the nut sleeve, and the sliding clamping assembly includes a rubber plate, a guide rod and an extrusion protrusion. The inner wall of the nut sleeve is symmetrically provided with compression grooves, and the symmetrical rubber plates slide in the compression grooves. The outer walls of the symmetrical compression grooves are symmetrically provided with sliding holes. The symmetrical guide rods are slidably inserted into the sliding holes, and one end of the guide rod is connected to the rubber plate, and the other end face of the guide rod is connected to the extrusion protrusion. The symmetrical extrusion protrusions are located on the outer side surface of the nut sleeve, and the extrusion protrusions are in sliding and extrusion contact with the inner wall of the guide cylinder.

[0008] Preferably, the driving sliding mechanism includes a support block, a hydraulic cylinder, a mounting seat, a track wheel, a connecting cross plate and a brake plate, the support blocks are symmetrically fixed to the front and rear side walls of the support frame, and a hydraulic cylinder is fixed on the support block, the lower end surface of the piston rod of the hydraulic cylinder is symmetrically fixed with a mounting seat, the mounting seat is symmetrically rotatably mounted with a track wheel, and the track wheel rolls and contacts the upper rail surface of the rail, a connecting cross plate is fixed between the symmetrical mounting seats, and a guide slide is provided in the connecting cross plate, the brake plates are symmetrically slidably inserted in the guide slide, and the outer end surface of the brake plate is slidably set in the gap between the mounting seat and the track wheel, and a push sliding assembly is provided on the connecting cross plate, and the push sliding assembly is used to drive the brake plate to slide in the guide slide.

[0009] Preferably, the pushing and sliding assembly includes a second electric push rod, a sleeve square cylinder, a square rod, a driving rod, a gear and a plate-type rack. The second electric push rod is fixed in the rotating rod, and the lower end face of the piston rod of the second electric push rod is fixed with a sleeve square cylinder. The driving rod is rotatably set at the center position of the guide slide, and the upper end face of the driving rod extends out of the guide slide and is connected to the square rod. The square rod and the sliding sleeve square cylinder are plugged into each other, and a limited rotation assembly is provided on the square rod. The gear is sleeved on the driving rod, and the gear is located in the guide slide. The end faces of the symmetrical brake plates are respectively connected with plate-type racks, and the symmetrical plate-type racks are engaged with the gears.

[0010] Preferably, the limiting rotation assembly includes a sliding frame, a metal ring and a contact column, the sliding frame is sleeved on the square rod, the upper surface of the connecting cross plate is insulated and installed with a metal ring, at least two of the contact columns are installed on the lower surface of the sliding frame, the lower surface of the contact column is insulated and installed with an electromagnet, and the electromagnet on the lower surface of the contact column is in rotational contact with the upper surface of the metal ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The present invention symmetrically arranges a nut sleeve that can rotate and move up and down on the lower surface of the support frame. The nut sleeve is sleeved on the anchor bolt and can be removed from the elastic bar when it is rotated. At the same time, it can drive the removed anchor bolt to rise and slide into the guide cylinder, driving the sliding mechanism to drive the support frame to disengage from above the vibration-damping fastener, and then control the support frame to rise, and the piston rod of the first electric push rod is extended to push out the anchor bolt in the guide cylinder, thereby making it convenient for construction workers to collect and store the anchor bolts, and further making it convenient for construction workers to quickly disassemble other components of the vibration-damping fastener such as shrapnel, and then install and replace new vibration-damping fasteners or their components, thereby improving the efficiency of replacing multiple vibration-damping fasteners on the rails.

[0013] 2. The present invention arranges a track wheel under the support frame to facilitate the rotational disassembly mechanism to move on the rails to quickly disassemble multiple sets of symmetrical vibration-damping fasteners, and the sliding brake plate can brake and fix the track wheel in cooperation with the pushing sliding assembly to prevent the nut sleeve from instantly applying a torsional force to the rusted anchor bolt. Since the track wheel is not fixed, it causes the track wheel to slip on the rail, thereby affecting the stable and safe disassembly of the anchor bolt by the nut sleeve, and further affecting the disassembly efficiency of the rotational disassembly mechanism on the vibration-damping fasteners, and also easily causing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention;

[0015] Figure 2 It is a cross-sectional view of the guide cylinder of the present invention;

[0016] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle part;

[0017] Figure 4 This is a schematic structural diagram of the driving sliding mechanism of the present invention;

[0018] Figure 5 For the present invention Figure 4 A partial enlarged view of point B in the middle;

[0019] Figure 6 is a cross-sectional view of the support frame of the present invention;

[0020] Figure 7 For the present invention Figure 6 A partial enlarged view of point C in the middle;

[0021] In the figure: 1. support frame; 2. push rod; 3. rotation and disassembly mechanism; 31. guide cylinder; 32. first electric push rod; 33. nut sleeve; 331. compression groove; 332. sliding hole; 34. connecting rotating rod; 35. driven pulley; 36. driving pulley; 37. rotating rod; 38. driving belt; 4. sliding clamping assembly; 41. rubber plate; 42. guide rod; 43. extrusion protrusion; 5. driving sliding mechanism; 51. support block; 52. hydraulic cylinder; 53. mounting seat; 54. track wheel; 55. connecting cross plate; 551. guide slide; 56. brake plate; 6. pushing sliding assembly; 61. second electric push rod; 62. sleeve square cylinder; 63. square rod; 64. driving rod; 65. gear; 66. plate-type rack; 7. position limiting rotation assembly; 71. sliding frame; 72. metal ring; 73. contact column. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1:

[0024] like Figures 1 to 7The cam 2 is actuated by a lever 24 located on the top of the support frame 1 and is used to move the lever 24 upwards to move the lever 24 downwards, so that the lever 24 can be moved to a desired location on the support frame 1 . The driving sliding mechanism 5 controls the support frame 1 to descend, so that the rotating disassembly mechanism 3 can be sleeved on the head of the anchor bolt of the vibration-damping fastener. At this time, the construction personnel control the rotating disassembly mechanism 3 to work through the control box on the support frame 1, so that it disassembles the anchor bolt from the elastic bar, and then continues to control the driving sliding mechanism 5 to drive the support frame 1 to slide and move away from above the elastic bar, and the rotating disassembly mechanism 3 throws out the disassembled anchor bolt, which makes it convenient for the construction personnel to continue to push the push rod 2, so that the support frame 1 drives the rotating disassembly mechanism 3 to slide above the next group of vibration-damping fasteners to disassemble the anchor bolts, which makes it convenient for the construction personnel to quickly disassemble other components of the vibration-damping fastener such as the spring clip, and then install and replace the new vibration-damping fastener or its components, which can improve the efficiency of replacing multiple vibration-damping fasteners on the rail without increasing the labor of the construction personnel. At the same time, the rotating disassembly mechanism 3 can also install the new anchor bolt on the corresponding spring clip, which makes it convenient for the replacement of the vibration-damping fastener to be quickly installed.

[0025] As an embodiment of the present invention, the rotation and disassembly mechanism 3 includes a guide cylinder 31, a first electric push rod 32, a nut sleeve 33, a connecting rotating rod 34, a driven pulley 35, a driving pulley 36, a rotating rod 37 and a driving belt 38. The symmetrical guide cylinder 31 is arranged on the lower surface of the support frame 1, and a rotating cavity is opened in the support frame 1. The two fixed cylinders of the first electric push rods 32 are inserted into the rotating cavity through bearings, and the piston rod of the first electric push rod 32 is located in the guide cylinder 31. The nut sleeve 33 is arranged on the lower end surface of the piston rod of the first electric push rod 32. The lower end surfaces of the symmetrical connecting rotating rods 34 are respectively connected to the fixed cylinders of the first electric push rod 32. And a driven pulley 35 is provided on the symmetrical connecting rotating rod 34, and the driving pulley 36 is rotatably installed in the center position of the rotating cavity through the rotating rod 37. The driving pulley 36 is connected to the two driven belts through a driving belt 38. A driving motor is fixed to the upper surface of the support frame 1, and the output shaft of the driving motor is connected to the rotating rod 37; according to the design of the present invention, when the driving sliding mechanism 5 drives the support frame 1 to slide above the corresponding anchor bolt, the driving sliding mechanism 5 will drive the support frame 1 to descend, so that the guide cylinder 31 can be located a short distance above the anchor bolt, and then the piston rod of the first electric push rod 32 is extended to drive the nut sleeve 33 to be sleeved on the anchor bolt, and then through the driving motor The output shaft works so that the rotating rod 37 can be driven by the driving pulley 36, the driving belt 38 and the driven pulley 35, so that it can drive the nut sleeve 33 to rotate through the connecting rotating rod 34 and the first electric push rod 32, thereby facilitating the removal of the anchor bolt. As the anchor bolt is continuously removed from the base plate, the piston rod of the first electric push rod 32 contracts and can collect the removed anchor bolt into the guide cylinder 31 through the nut sleeve 33. When the anchor bolt is completely removed, the driving sliding mechanism 5 drives the support frame 1 to disengage from the top of the vibration damping fastener, and then controls the support frame 1 to rise, and the piston rod of the first electric push rod 32 extends to push out the anchor bolt in the guide cylinder 31, thereby facilitating the construction personnel to remove the anchor bolt. The bolts are collected and stored, and then the construction personnel push the push rod 2, so that the driving sliding mechanism 5 drives the support frame 1 and the symmetrical nut sleeve 33 to slide to the next group of vibration-damping fasteners to be removed, thereby facilitating the disassembly and replacement of the next group of disassembled vibration-damping fasteners; and when the anchor bolts of the newly replaced vibration-damping fasteners need to be installed, the construction personnel can first insert the anchor bolts into the anchor holes under the corresponding spring pieces, and then put the nut sleeve 33 on the anchor bolts. The reverse rotation of the driving motor will drive the nut sleeve 33 to rotate in the reverse direction, and then with the cooperation of the piston rod of the first electric push rod 32 continuously extending, the new anchor bolts are fixed to both sides of the lower rail of the rail to fix the spring pieces.

[0026] As an embodiment of the present invention, a sliding clamping assembly 4 is provided on the nut sleeve 33, and the sliding clamping assembly 4 includes a rubber plate 41, a guide rod 42 and an extrusion protrusion 43. The inner wall of the nut sleeve 33 is symmetrically provided with a compression groove 331, and the symmetrical rubber plate 41 slides in the compression groove 331. The outer wall of the symmetrical compression groove 331 is penetrated with a sliding hole 332, and the symmetrical guide rod 42 is slidably inserted into the sliding hole 332, and one end of the guide rod 42 is connected to the rubber plate 41, and the other end face of the guide rod 42 is connected with an extrusion protrusion 43. The symmetrical extrusion protrusion 43 is located on the outer side surface of the nut sleeve 33, and the extrusion protrusion 43 is in sliding and extrusion contact with the inner wall of the guide cylinder 31; according to the design of the present invention, when the nut sleeve 33 is sleeved on the anchor bolt, the head of the anchor bolt will fit with the outer surface of the rubber plate 41. At this time, the rubber plate 41 will slide into the compression groove 331. When the first electric push rod When the first electric push rod drives the nut sleeve 33 to slide into the guide cylinder 31, the piston rod of the first electric push rod 32 extends to push the nut sleeve 33 out of the guide cylinder 31. At this time, the squeezing protrusion 43 will be disengaged from the guide cylinder 31 and will not be subjected to the squeezing force, and the symmetrical rubber plates 41 will not clamp the anchor bolt, thereby facilitating the detachment and removal of the anchor bolt from the nut sleeve 33 under its own gravity, thereby facilitating the construction personnel to collect and store the disassembled anchor bolt.

[0027] As an embodiment of the present invention, the driving sliding mechanism 5 includes a support block 51, a hydraulic cylinder 52, a mounting seat 53, a track wheel 54, a connecting cross plate 55 and a brake plate 56. The symmetrical support blocks 51 are fixedly arranged on the front and rear side walls of the support frame 1, and the hydraulic cylinder 52 is fixed on the support block 51. The lower end surface of the piston rod of the symmetrical hydraulic cylinder 52 is fixed with a mounting seat 53. The symmetrical mounting seats 53 are rotatably mounted with track wheels 54. The symmetrical track wheels 54 roll and contact the upper rail surface of the rail. A connecting cross plate 55 is fixed between the symmetrical mounting seats 53, and the connecting cross plate A guide slot 551 is provided in 55, and the symmetrical brake plate 56 is slidably inserted in the guide slot 551, and the outer end surface of the brake plate 56 is slidably set in the gap between the mounting seat 53 and the track wheel 54, and a push sliding component 6 is provided on the connecting cross plate 55, and the push sliding component 6 is used to drive the brake plate 56 to slide in the guide slot 551; the design of the present invention, the support frame 1 can slide on the upper surface of the rail through the track wheel 54, and the extension and contraction of the piston rod of the hydraulic cylinder 52 can push the support frame 1 to rise and fall on the upper surface of the rail, and the brake plate 56 When the nut sleeve 33 is disassembled, the track wheel 54 will not slide on the rail, thereby improving the stability of the rotation and disassembly mechanism 3 in disassembling the vibration-damping fastener. When the anchor bolt is disassembled and retracted into the guide cylinder 31, the sliding assembly 6 is pushed to drive the brake plate 56 to retract into the guide groove 551, and then the piston rod of the hydraulic cylinder 52 is extended to drive the support frame 1 to rise, so that the nut sleeve 33 is disengaged from the top of the spring. The support frame 1 is then pushed by the push rod 2 to slide on the rail through the track wheel 54, so that the anchor bolt collected in the guide cylinder 31 after disassembly can be detached and discharged; and when the anchor bolt needs to be installed, the piston rod of the hydraulic cylinder 52 is extended to make the support frame 1 rise, and then the piston rod of the first electric push rod 32 is extended to slide the nut sleeve 33 out of the guide cylinder 31, so that the nut sleeve 33 is sleeved on the anchor bolt inserted into the spring piece, and then the nut sleeve 33 is controlled to rotate, and the piston rod of the hydraulic cylinder 52 is contracted in coordination, so as to facilitate the installation and fixing of the anchor bolt.

[0028] As an embodiment of the present invention, the push-slide assembly 6 includes a second electric push rod 61, a sleeve square tube 62, a square rod 63, a drive rod 64, a gear 65 and a plate-shaped rack 66. The second electric push rod 61 is fixed in the rotating rod 37, and the lower end surface of the piston rod of the second electric push rod 61 is fixed with a sleeve square tube 62. The center position of the guide slot 551 is rotatably provided with a drive rod 64, and the upper end surface of the drive rod 64 extends out of the guide slot 551 and is connected to the square rod 63. The square rod 63 and the sliding sleeve square tube 62 are plugged into each other, and the upper end of the square rod 63 is fixed with the sleeve square tube 62. A limited rotation assembly 7 is provided, wherein the gear 65 is sleeved on the driving rod 64, and the gear 65 is located in the guide slot 551, and the end faces of the symmetrical brake plates 56 are respectively connected with plate-shaped racks 66, which mesh with the gear 65; according to the design of the present invention, when the brake plate 56 needs to be inserted into the track wheel 54 to fix the track wheel 54, the piston rod of the second electric push rod 61 is extended, so that the sleeve square tube 62 is sleeved on the square rod 63, and then the driving motor is controlled to rotate slowly. At this time, the nut sleeve 33 is located above the anchor bolt, so that The gear 65 is driven to rotate by the second electric push rod 61, the sleeve square tube 62, the square rod 63 and the driving rod 64, and then the symmetrically meshed plate rack 66 drives the brake plate 56 to slide out of the guide groove 551 and insert it between the mounting seat 53 and the track wheel 54. Then, the driving rod 64 is fixed by the limited rotation component 7. Then, the piston rod of the second electric push rod 61 is retracted to drive the sleeve square tube 62 to disengage from the sleeve on the square rod 63, thereby facilitating the braking and fixing of the track wheel 54. Then, the piston rod of the hydraulic cylinder 52 is retracted and can be driven by the support frame 1; the nut sleeve 33 It is sleeved on the anchor bolt to realize the removal of the anchor bolt; when the brake plate 56 needs to be retracted and the track wheel 54 moves, the piston rod of the hydraulic cylinder 52 is extended, causing the support frame 1 to rise, and then the piston rod of the second electric push rod 61 is extended to make the sleeve square cylinder 62 sleeved on the square rod 63, and the limit rotation component 7 is dragged to the limit fixation of the drive rod 64, and then the reverse rotation of the driving motor will drive the gear 65 to rotate in the opposite direction, and then it is convenient to drive the brake plate 56 to retract into the guide groove 551 through the plate-shaped rack 66, so as to facilitate the brake plate 56 to be separated from the brake fixation of the track wheel 54.

[0029] As an embodiment of the present invention, the limit rotation assembly 7 includes a sliding frame 71, a metal ring 72 and a contact column 73. The sliding frame 71 is sleeved on the square rod 63. The upper surface of the connecting cross plate 55 is insulated and installed with a metal ring 72. At least two contact columns 73 are installed on the lower surface of the sliding frame 71. The lower surface of the contact column 73 is insulated and provided with an electromagnet, and the electromagnet on the lower surface of the contact column 73 is in rotational contact with the upper surface of the metal ring 72. According to the design of the present invention, when the brake plate 56 is inserted between the track wheel 54 and the mounting seat 53 to fix the track wheel 54, At this time, the electromagnet on the lower surface of the control contact post 73 is energized so that it is magnetically adsorbed onto the metal ring 72, and then the sliding frame 71 can be fixed, so that the driving rod 64 can be limited and fixed by the square rod 63 to prevent the gear 65 from rotating on its own; and when the gear 65 needs to rotate, the control electromagnet is de-energized to make it lose its magnetism and disengage from the adsorption of the metal ring 72. Therefore, the rotation of the square rod 63 will drive the contact post 73 to rotate on the upper surface of the metal ring 72 through the sliding frame 71, and will not affect the rotation of the gear 65 driven by the driving rod 64, thereby facilitating the brake plate 56 to slide in the guide groove 551.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A track vibration damping fastener replacement device, comprising a support frame (1) and a push rod (2) fixed to the upper surface of the support frame (1), characterized in that: The lower surfaces of both ends of the support frame (1) are provided with rotational disassembly mechanisms (3), the rotational disassembly mechanisms (3) are mounted on both sides of the rail through the support frame (1), and are used to disassemble the anchor bolts on the rail vibration damping fasteners, and a driving sliding mechanism (5) is provided on the support frame (1) and between the rotational disassembly mechanisms (3), and the driving sliding mechanism (5) is used to drive the support frame (1) to slide on the rail; The rotating disassembly mechanism (3) comprises a guide cylinder (31), a first electric push rod (32), a nut sleeve (33), a connecting rotating rod (34), a driven pulley (35), a driving pulley (36), a rotating rod (37) and a driving belt (38), wherein the symmetrical guide cylinder (31) is arranged on the lower surface of the support frame (1), and a rotating cavity is opened in the support frame (1), the fixing cylinders of the two first electric push rods (32) are inserted into the rotating cavity through bearings, and the piston rod of the first electric push rod (32) is located in the guide cylinder (31), and the nut sleeve (33) is arranged on the lower surface of the support frame (1). The lower end surface of the piston rod of the first electric push rod (32) is arranged, and the lower end surfaces of the symmetrical connecting rods (34) are respectively connected to the fixed cylinder of the first electric push rod (32), and the symmetrical connecting rods (34) are provided with driven pulleys (35), the driving pulley (36) is rotatably installed at the center position of the rotating chamber through the rotating rod (37), the driving pulley (36) is connected to the two driven belts through the driving belt (38), and the upper surface of the support frame (1) is fixed with a driving motor, and the output shaft of the driving motor is connected to the rotating rod (37); A sliding clamping assembly (4) is provided on the nut sleeve (33), and the sliding clamping assembly (4) includes a rubber plate (41), a guide rod (42) and an extrusion protrusion (43). The inner wall of the nut sleeve (33) is symmetrically provided with a compression groove (331), the symmetrical rubber plate (41) slides in the compression groove (331), the outer wall of the symmetrical compression groove (331) is symmetrically provided with a sliding hole (332), the symmetrical guide rod (42) is slidably inserted into the sliding hole (332), and one end of the guide rod (42) is connected to the rubber plate (41), and the other end face of the guide rod (42) is connected to the extrusion protrusion (43), the symmetrical extrusion protrusion (43) is located on the outer side surface of the nut sleeve (33), and the extrusion protrusion (43) is in sliding and extrusion contact with the inner wall of the guide cylinder (31).

2. A track vibration damping fastener replacement device according to claim 1, characterized in that: The driving sliding mechanism (5) comprises a support block (51), a hydraulic cylinder (52), a mounting seat (53), a track wheel (54), a connecting cross plate (55) and a brake plate (56). The support block (51) is symmetrically fixed to the front and rear side walls of the support frame (1), and the support block (51) is fixed with a hydraulic cylinder (52). The lower end surface of the piston rod of the symmetrical hydraulic cylinder (52) is fixed with a mounting seat (53). The symmetrical mounting seat (53) is rotatably mounted with a track wheel (54). The symmetrical track wheel (54) rolls and contacts the iron On the upper rail surface of the rail, a connecting transverse plate (55) is fixed between the symmetrical mounting seats (53), and a guide slot (551) is provided in the connecting transverse plate (55). The symmetrical brake plate (56) is slidably inserted in the guide slot (551), and the outer end surface of the brake plate (56) is slidably arranged in the gap between the mounting seat (53) and the track wheel (54). A push sliding assembly (6) is provided on the connecting transverse plate (55), and the push sliding assembly (6) is used to drive the brake plate (56) to slide in the guide slot (551).

3. The track vibration damping fastener replacement device according to claim 2, characterized in that: The pushing and sliding assembly (6) includes a second electric push rod (61), a sleeve square tube (62), a square rod (63), a driving rod (64), a gear (65) and a plate-shaped rack (66). The second electric push rod (61) is fixed in the rotating rod (37), and the lower end surface of the piston rod of the second electric push rod (61) is fixed with a sleeve square tube (62). The driving rod (64) is rotatably provided at the center position of the guide slot (551), and the upper end surface of the driving rod (64) extends The guide chute (551) is connected to a square rod (63), the square rod (63) and the sliding sleeve square tube (62) are plugged into each other, and a limited rotation component (7) is provided on the square rod (63), the gear (65) is sleeved on the driving rod (64), and the gear (65) is located in the guide chute (551), and the end faces of the symmetrical brake plates (56) are respectively connected to plate-shaped racks (66), and the symmetrical plate-shaped racks (66) are engaged with the gear (65).

4. The track vibration damping fastener replacement device according to claim 3, characterized in that: The position-limiting rotation assembly (7) comprises a sliding frame (71), a metal ring (72) and a contact column (73); the sliding frame (71) is sleeved on the square rod (63); the upper surface of the connecting horizontal plate (55) is insulated and mounted with the metal ring (72); at least two contact columns (73) are mounted on the lower surface of the sliding frame (71); the lower surface of the contact column (73) is insulated and mounted with an electromagnet, and the electromagnet on the lower surface of the contact column (73) is in rotational contact with the upper surface of the metal ring (72).

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