A device for automatically chiseling out double-block ballastless track slabs

Abstract

The present invention discloses a device for automatically chiseling double-block ballastless track slabs, comprising a transverse guide rail with a plurality of buffer assemblies mounted on the upper end, each of the buffer assemblies being connected to a track vehicle via a lifting cylinder, at least one mobile multi-head chiseling unit being mounted on the transverse guide rail, the mobile multi-head chiseling unit comprising a running member mounted on the transverse guide rail and capable of guiding movement along the transverse guide rail, the running member being connected to an assembly seat via an inclination adjustment mechanism, and a plurality of adjustable pneumatic chiseling hammers being mounted on the assembly seat. The present invention has high-precision and high-efficiency chiseling capabilities, and can adapt to track slabs of different specifications and materials, thereby improving the overall efficiency of track maintenance and replacement, reducing manual labor intensity, improving construction safety, reducing human errors and safety hazards, and ensuring the accuracy and quality of the chiseling process. The present invention is applicable to the technical field of chiseling and replacement of ballastless track slabs in railway maintenance.

Description

Technical Field

[0001] The invention belongs to the technical field of breaking and replacing ballastless track slabs in railway maintenance, and particularly relates to a device for automatically chiseling away double-block ballastless track slabs. Background Art

[0002] With the rapid development of railway transportation, ballastless track has gradually become the preferred choice for railway construction due to its stability and durability. By eliminating traditional ballast laying technology, ballastless track provides a more stable and durable track foundation, suitable for high-speed and heavy-haul railways. In particular, twin-block ballastless track is widely used due to its convenient construction, stable structure, and strong adaptability. However, over the long term, twin-block ballastless track may require replacement or repair due to natural wear, environmental impact, and mechanical stress from train operation.

[0003] The existing track slab chiseling method mainly relies on manual operation, usually using manual tools such as pneumatic hammers, electric hammers or crowbars for chiseling. This method has obvious shortcomings. First, manual operation efficiency is extremely low, especially in the process of long-distance track maintenance, the manual chiseling speed is slow, which significantly affects the overall construction progress. Secondly, chiseling track slabs is a physically intensive job. Long-term and high-intensity work requires extremely high physical strength and endurance of workers, which can easily lead to worker fatigue, injury, and even induce occupational diseases. In addition, during manual operation, workers need to work for a long time next to the track and face high safety risks, including mechanical injuries, accidental falls, and threats from running trains. Finally, the chiseling quality of manual operation is unstable, and it is easy to have incomplete or excessive chiseling, affecting the subsequent replacement of track slabs and the overall stability of the track.

[0004] Therefore, there is an urgent need for an efficient and highly automated chiseling device to improve work efficiency, reduce labor intensity, and reduce human errors and safety hazards. Summary of the Invention

[0005] The present invention is proposed to solve the problems existing in the prior art, and its purpose is to provide a device for automatically chiseling out double-block ballastless track slabs.

[0006] The technical solution of the present invention is: a device for automatically chiseling a double-block ballastless track slab, comprising a transverse guide rail with a plurality of buffer assemblies mounted on the upper end, each of the buffer assemblies being connected to a track carriage via a lifting cylinder, at least one mobile multi-head chiseling unit being mounted on the transverse guide rail, the mobile multi-head chiseling unit comprising a running member mounted on the transverse guide rail and movable along the guide of the transverse guide rail, the running member being connected to an assembly base via an inclination adjustment mechanism, and a plurality of adjustable pneumatic chiseling hammers being mounted on the assembly base.

[0007] Furthermore, the buffer assembly includes a buffer sleeve whose lower end is detachably mounted on the upper end surface of the transverse guide rail, the lower end of the buffer rod extends into the buffer sleeve from the upper end of the buffer sleeve, and a buffer spring is mounted on the outer sleeve of the buffer rod, and the two ends of the buffer spring are respectively connected and fixed to the upper end of the buffer rod and the upper end of the buffer sleeve.

[0008] Furthermore, the inclination adjustment mechanism includes a first connecting seat detachably connected to the running member, a first connecting ear is constructed at the lower end of the first connecting seat, a second connecting seat is arranged below the first connecting seat, and a second connecting ear is constructed at the upper end of the second connecting seat, the first connecting ear and the second connecting ear are pivotally connected through a connecting shaft, and the connecting shaft is rotatably connected to the first connecting ear, the connecting shaft is fixedly connected to the second connecting ear, a first power motor is fixedly installed on the first connecting seat, the output shaft of the first power motor is coaxially connected to one end of the connecting shaft, and the second connecting seat is connected to the assembly seat.

[0009] Furthermore, the adjustable pneumatic chiseling hammer includes a hammer rod whose upper end extends into the hammer barrel from the lower end of the hammer barrel, the axis of the hammer rod coincides with the axis of the hammer barrel, and a hammer body is detachably connected to the lower end of the hammer rod, and a piston extending radially outward is constructed on the portion of the hammer rod located in the hammer barrel, the piston divides the inner cavity of the hammer barrel into an upper chamber and a lower chamber, a connecting spring is installed in the upper chamber, and an upper end cover is detachably connected to the upper end of the hammer barrel, the two ends of the connecting spring are respectively connected to the piston and the upper end cover, and the upper chamber is connected to the air source.

[0010] Furthermore, a pneumatic vertical adjustment component is constructed on the upper part of the adjustable pneumatic chipping hammer, and the output end of the pneumatic vertical adjustment component is connected to the upper end of the hammer rod.

[0011] Furthermore, the pneumatic vertical adjustment component includes a driving rod whose lower end movably extends into the upper chamber from the center of the upper end cover, a disc-shaped push block is constructed at the lower end of the driving rod, and a first air channel connected to the outside is constructed in the driving rod, the first air channel is connected to the second air channel constructed at the upper end of the hammer rod, an annular air channel is constructed near the hammer rod on the disc-shaped push block, the annular air channel is connected to the upper chamber, and when the upper end of the hammer rod abuts against the lower end of the disc-shaped push block, the first air channel, the second air channel, the annular air channel and the upper chamber are connected; an exhaust joint is constructed at the upper position of the driving rod, the exhaust joint has a third air channel connected to the first air channel, and the driving rod is connected to the vertical driving member.

[0012] Furthermore, the vertical driving member includes a connecting sleeve whose lower end is connected to the upper end cover, the lower end of the transmission rod extends into the connecting sleeve from the upper end of the connecting sleeve, and a fixed spring is installed in the connecting sleeve. The two ends of the fixed spring are respectively connected to the lower end of the connecting sleeve and the lower end of the transmission rod, and the upper part of the transmission rod is connected to the upper part of the driving rod through a connecting plate. A fourth air duct is constructed in the transmission rod, and the fourth air duct connects the air source with the inner cavity of the connecting sleeve.

[0013] Furthermore, the assembly seat includes a plurality of chain links connected and fixed in sequence, these chain links are connected into a circle or a fan shape, and these chain links are installed and fixed on the disc-shaped seat body, and each of the chain links is connected to a strip-shaped seat body extending radially outward along the disc-shaped seat body, and each of the strip-shaped seat bodies is provided with a sliding groove extending along its length direction, and each adjustable pneumatic chiseling hammer is provided with a sliding block, and the sliding block is slidably assembled in the corresponding sliding groove, and an opening and closing drive assembly is installed between the assembly seat and the adjustable pneumatic chiseling hammer.

[0014] Furthermore, the opening and closing drive assembly includes a first drive cylinder whose upper end is connected to the lower end of the tilt adjustment mechanism, the first cylinder rod of the first drive cylinder is connected to the hinge seat, and a plurality of hinge rods are hinged on the hinge seat along its circumferential intervals, and each of the hinge rods is hinged to the corresponding adjustable pneumatic chiseling hammer at one end away from the hinge seat.

[0015] Furthermore, the assembly seat includes a plate-shaped seat body whose upper end is rotatably connected to the lower end of the inclination adjustment mechanism through a second driving cylinder, and a plurality of adjustable pneumatic chiseling hammers are installed side by side on the plate-shaped seat body; the second cylinder rod of the second driving cylinder is connected to the second power motor through an adapter seat, and a transmission gear is fixed on the plate-shaped seat body, and the transmission gear is coaxially rotatably connected to the second cylinder rod, and a driving gear is coaxially assembled on the output shaft of the second power motor, and the driving gear and the transmission gear are engaged with each other.

[0016] The beneficial effects of the present invention are as follows:

[0017] The present invention achieves the purpose of continuous chiseling of the track plate by the track vehicle traveling on the track; the specific chiseling operation is that the track vehicle moves to the predetermined chiseling area, controls the lifting cylinder to drive the transverse guide rail to move downward for a certain distance, so that the lower end of each mobile multi-head chiseling unit is close to the upper end surface of the track plate, and then controls the mobile multi-head chiseling unit to move to chisel the track plate; and in the chiseling process, the inclination adjustment mechanism can be controlled according to demand to drive the corresponding mobile multi-head chiseling unit to tilt, so that the mobile multi-head chiseling unit can chisel the track plate at the corresponding position more efficiently under the inclination angle.

[0018] The present invention controls the movable multi-head chiseling unit to move along the transverse guide rail through a running piece, so that the movable multi-head chiseling unit can perform chiseling operations on different positions of the track plate, avoiding the occurrence of chiseling dead corners.

[0019] The present invention adopts multiple buffer components, so that these buffer components can buffer the reaction force generated by the mobile multi-head chiseling unit during the chiseling process, avoid damage to the mobile multi-head chiseling unit, and increase the service life of the mobile multi-head chiseling unit.

[0020] Since the mobile multi-head chiseling unit of the present invention adopts multiple adjustable pneumatic chiseling hammers, the positions of these adjustable pneumatic chiseling hammers can be arranged and / or the distances between these adjustable pneumatic chiseling hammers can be adjusted, thereby enabling the track plate to be locally point-crushed, line-crushed or surface-crushed in a targeted manner, that is, the areas of the track plate that are difficult to crush are point-crushed, and the areas of the track plate that are easier to crush are line-crushed or surface-crushed.

[0021] This invention replaces manual labor with automation, significantly improving the speed and efficiency of track slab chiseling and significantly shortening the construction period. It also reduces physical labor and intensity, improves the safety of the work environment, eliminates the need for workers to work long hours near the tracks, and reduces the risk of mechanical injuries and traffic accidents. The mobile multi-head chiseling unit can be precisely controlled, ensuring consistency and stability during the chiseling process and avoiding the problems of incomplete or excessive chiseling caused by manual operation.

[0022] The present invention can be finely adjusted according to the specific conditions of the track plate, is applicable to track plates of different specifications and materials, and improves the versatility and economic benefits of the equipment.

[0023] The present invention has high-precision and high-efficiency chiseling capabilities and can adapt to track plates of different specifications and materials, thereby improving the overall efficiency of track maintenance and replacement, reducing manual labor intensity, improving construction safety, reducing human errors and safety hazards, and ensuring the accuracy and quality of the chiseling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention in which two mobile multi-head chiseling units are installed;

[0025] Figure 2 Schematic diagram of the structure of a single mobile multi-head chiseling unit connected to a transverse guide rail in an embodiment of the present invention;

[0026] Figure 3 for Figure 2 A schematic structural diagram of the structure shown from another angle;

[0027] Figure 4 Schematic diagram of the structure of the connection between the assembly base and multiple adjustable pneumatic chiseling hammers in the mobile multi-head chiseling unit in an embodiment of the present invention;

[0028] Figure 5 Schematic diagram of the structure of a partial assembly base connected to a single adjustable pneumatic chiseling hammer in a mobile multi-head chiseling unit according to an embodiment of the present invention;

[0029] Figure 6 Schematic diagram of the structure of the disc-shaped seat body in the assembly seat in an embodiment of the present invention;

[0030] Figure 7 This is an axial structural cross-sectional view of the connection between the adjustable pneumatic chipping hammer and the pneumatic vertical adjustment assembly in an embodiment of the present invention;

[0031] Figure 8 A schematic structural diagram of the tilt adjustment mechanism in an embodiment of the present invention;

[0032] Figure 9 Schematic diagram of the structure of a plurality of adjustable pneumatic chiseling hammers arranged in a fan shape in a mobile multi-head chiseling unit according to an embodiment of the present invention;

[0033] Figure 10 for Figure 9 A schematic structural diagram of the structure shown from another angle;

[0034] Figure 11 This is a schematic structural diagram of a plurality of adjustable pneumatic chipping hammers installed side by side on an assembly base in an embodiment of the present invention;

[0035] Figure 12 It is a structural schematic diagram of the connection between an assembly base, a rotary drive mechanism and a plurality of side-by-side adjustable pneumatic chipping hammers in an embodiment of the present invention.

[0036] Among them, 100- transverse guide rail, 200- buffer assembly, 201- buffer sleeve, 202- buffer rod, 203- buffer spring, 300- running piece, 400- assembly seat, 401- chain link, 402- strip seat body, 403- sliding groove, 404- disc seat body, 405- connecting bolt, 406- fixed joint, 407- first fixed ear, 408- second fixed ear, 409- connecting nut, 410- fixed sleeve, 411- fastening hole, 412- plate seat body, 500- adjustable pneumatic chiseling hammer, 501- hammer barrel, 502- hammer rod, 503- piston, 504- connecting spring, 505- hammer body, 506- disc push block, 507- driving rod, 508- exhaust joint, 509-first air channel, 510-third air channel, 511-second air channel, 512-annular air channel, 513-upper end cover, 514-sliding block, 515-connecting sleeve, 516-transmission rod, 517-fourth air channel, 518-fixing spring, 519-connecting plate, 600-opening and closing drive assembly, 601-first driving cylinder, 602-hinge seat, 603-hinge rod, 700-tilt adjustment mechanism, 701-first connecting seat, 702-first connecting ear, 703-second connecting seat, 704-second connecting ear, 705-connecting shaft, 706-first power motor, 800-second driving cylinder, 801-second cylinder body, 802-second cylinder rod, 900-rotational drive mechanism. DETAILED DESCRIPTION

[0037] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and embodiments:

[0038] like Figures 1 to 12 As shown, a device for automatically chiseling twin-block ballastless track slabs includes a transverse guide rail 100, multiple buffer assemblies 200, and at least one mobile multi-head chiseling unit. The multiple buffer assemblies 200 are installed on the transverse guide rail 100 at intervals along its length. Each buffer assembly 200 is connected to a lifting cylinder at its upper end, which is connected to a track carriage. The mobile multi-head chiseling unit is mounted on the transverse guide rail 100.

[0039] The specific structure of the mobile multi-head chiseling unit of the present invention is as follows: the mobile multi-head chiseling unit includes a running member 300 , an angle adjustment mechanism 700 , an assembly seat 400 and a plurality of adjustable pneumatic chiseling hammers 500 .

[0040] Specifically, the running member 300 is mounted on the transverse guide rail 100 and is driven to move along the guide rail 100. Typically, the running member 300 is a linear slide or a linear motor. The running member 300 is connected to the assembly base 400 via an inclination adjustment mechanism 700. The plurality of adjustable pneumatic chipping hammers 500 are mounted at intervals on the assembly base 400.

[0041] The working principle and advantages of the present invention are as follows: the present invention realizes the purpose of continuous chiseling operation on the track plate by the track vehicle walking on the track; the specific chiseling operation is that the track vehicle moves to the predetermined chiseling area, controls the lifting cylinder to drive the transverse guide rail 100 to move downward for a distance, so that the lower end of each mobile multi-head chiseling unit is close to the upper end surface of the track plate, and then controls the mobile multi-head chiseling unit to move to chisel the track plate; and in the chiseling process, the inclination adjustment mechanism 700 can be controlled according to demand to drive the corresponding mobile multi-head chiseling unit to tilt, so that the mobile multi-head chiseling unit can chisel the track plate at the corresponding position more efficiently under the inclination angle; the present invention controls the mobile multi-head chiseling unit to move along the transverse guide rail 100 through the running member 300, so that the mobile multi-head chiseling unit can perform chiseling operations on different positions of the track plate, avoiding the occurrence of chiseling dead angles.

[0042] The present invention adopts multiple buffer components 200, so that these buffer components 200 can buffer the reaction force generated by the mobile multi-head chiseling unit during the chiseling process, avoid damage to the mobile multi-head chiseling unit, and increase the service life of the mobile multi-head chiseling unit.

[0043] Since the mobile multi-head chiseling unit of the present invention adopts multiple adjustable pneumatic chiseling hammers 500, the positions of these adjustable pneumatic chiseling hammers 500 can be arranged and / or the distances between these adjustable pneumatic chiseling hammers 500 can be adjusted, thereby enabling the track plate to be locally point-crushed, line-crushed or surface-crushed in a targeted manner, that is, the areas of the track plate that are difficult to crush are point-crushed, and the areas of the track plate that are easier to crush are line-crushed or surface-crushed.

[0044] The present invention replaces manual operations with an automated approach, significantly improving the speed and efficiency of track slab chiseling and significantly shortening the construction period. Furthermore, the present invention reduces workers' physical labor, reduces labor intensity, improves the safety of the working environment, reduces the need for workers to work long hours next to the tracks, and reduces the risk of mechanical injuries and traffic accidents. The mobile multi-head chiseling unit can be precisely controlled, ensuring the consistency and stability of the chiseling process and avoiding the problem of incomplete or excessive chiseling due to manual operation. The present invention can be finely adjusted according to the specific conditions of the track slab and is applicable to track slabs of different specifications and materials, thereby improving the versatility and economic benefits of the equipment.

[0045] In summary, the present invention has high-precision and high-efficiency chiseling capabilities and can adapt to track plates of different specifications and materials, thereby improving the overall efficiency of track maintenance and replacement, reducing manual labor intensity, improving construction safety, reducing human errors and safety hazards, and ensuring the accuracy and quality of the chiseling process.

[0046] like Figure 11 As shown, the buffer assembly 200 includes a buffer sleeve 201, a buffer rod 202, and a buffer spring 203. The lower end of the buffer sleeve 201 is detachably mounted on the upper end surface of the transverse guide rail 100, the lower end of the buffer rod 202 extends into the buffer sleeve 201 from the upper end of the buffer sleeve 201, and the buffer spring 203 is sleeved outside the buffer rod 202. The two ends of the buffer spring 203 are respectively connected and fixed to the upper end of the buffer rod 202 and the upper end of the buffer sleeve 201.

[0047] In the present embodiment, when performing the operation of chiseling the track plate, the reaction force borne by the mobile multi-head chiseling unit is indirectly transmitted to the buffer assembly 200, so that the distance that the buffer rod 202 extends into the buffer sleeve 201 changes. In this way, the buffer spring 203 undergoes elastic deformation and stores energy, effectively resisting external impacts, thereby avoiding component damage.

[0048] like Figure 8 As shown, the tilt adjustment mechanism 700 includes a first connecting base 701, a second connecting base 703, a connecting shaft 705, and a first power motor 706. The first connecting base 701 is detachably connected to the running member 300. A first connecting ear 702 is configured at the lower end of the first connecting base 701. The second connecting base 703 is disposed below the first connecting base 701. A second connecting ear 704 is configured at the upper end of the second connecting base 703. The first connecting ear 702 and the second connecting ear 704 are pivotally connected via a connecting shaft 705. The connecting shaft 705 is rotatably connected to the first connecting ear 702, and the connecting shaft 705 is fixedly connected to the second connecting ear 704.

[0049] In this embodiment, the first power motor 706 is fixedly mounted on the first connecting seat 701 , the output shaft of the first power motor 706 is coaxially connected to one end of the connecting shaft 705 , and the second connecting seat 703 is connected to the assembly seat 400 .

[0050] The working principle and advantages of this embodiment are as follows: this embodiment can adjust the angle of the mobile multi-head chiseling unit according to the position of the track plate to be chiseled. Generally, when chiseling the edge of the track plate, the first power motor 706 is controlled to drive the second connecting seat 703 to rotate a certain angle, thereby driving the mobile multi-head chiseling unit to rotate a certain angle along the connecting shaft 705, so that the mobile multi-head chiseling unit is tilted. The mobile multi-head chiseling unit is then controlled to chisel the side of the track plate to improve the efficiency of chiseling the side of the track plate. When it is necessary to chisel other parts of the track plate except the edge, in the absence of other railway accessories, the tilt adjustment mechanism 700 is controlled to adjust the mobile multi-head chiseling unit to a vertical state, so that the mobile multi-head chiseling unit chisels the track plate vertically. After chiseling a certain range, that is, after chiseling at least one hole on the track plate, the tilt adjustment mechanism 700 is controlled to adjust the mobile multi-head chiseling unit to a tilted state to chisel the hole wall of the hole. The track plate can also be chiseled vertically to form multiple holes on the track plate, so that the strength of the track plate portion between adjacent holes is reduced. In this way, the chiseling efficiency can be improved regardless of subsequent vertical or oblique chiseling.

[0051] like Figure 7 As shown, the adjustable pneumatic chipping hammer 500 includes a hammer barrel 501, a hammer rod 502, a hammer body 505, and a connecting spring 504. The lower end of the hammer rod 502 extends into the hammer barrel 501 from the upper end of the hammer barrel 501, and the hammer body 505 is detachably connected to the lower end of the hammer rod 502. The axes of the hammer rod 502, the hammer barrel 501, and the hammer body 505 coincide with each other. In this embodiment, a piston 503 is constructed at the position where the hammer rod 502 is located in the hammer barrel 501. The piston 503 extends outward along the radial direction of the hammer rod 502. The piston 503 divides the inner cavity of the hammer barrel 501 into an upper chamber and a lower chamber. The connecting spring 504 is assembled in the upper chamber. The connecting spring 504 is sleeved on the outside of the hammer rod 502. An upper end cover 513 is detachably connected to the upper end of the hammer barrel 501. The two ends of the connecting spring 504 are respectively connected to the piston 503 and the upper end cover 513, and the upper chamber is connected to the air source.

[0052] The working principle and advantages of this embodiment are as follows: This embodiment supplies high-pressure gas into the upper chamber in a pulsed manner, thereby driving the piston 503 to move the hammer rod 502 downward, so that the hammer rod 502 drives the hammer body 505 downward to hammer the track plate. During this process, the connecting spring 504 is stretched and stored energy. When the high-pressure gas in the upper chamber is released to the outside, the connecting spring 504 drives the piston 503 to gradually return to its original position, allowing the hammer rod 502 to drive the hammer body 505 back to its original position, thereby facilitating the next pulse hammering operation. This embodiment achieves the adjustment of the chiseling depth of the hammer body 505 by changing the peak pressure of the pulsed high-pressure gas, thereby changing the stroke of the hammer rod 502.

[0053] In this embodiment, the length of the hammer rod 502 and the hammer body 505 extending into the hammer barrel 501 can be adjusted to change the initial excavation position of the hammer body 505, so as to adjust the distance between the lower end of the hammer barrel 501 and the track plate, thereby preventing the lower end of the hammer barrel 501 from contacting the rail or accessories on the rail when excavating the track plate deep, thereby limiting the hammer body 505 from being able to perform the excavation operation deep into the track plate. The measures taken are as follows: Figure 7 As shown, a pneumatic vertical adjustment assembly is constructed on the upper portion of the adjustable pneumatic chiseling hammer 500, the output end of which is connected to the upper end of the hammer rod 502. Specifically, the pneumatic vertical adjustment assembly includes a drive rod 507, a disc-shaped push block 506, and a vertical drive member. The lower end of the drive rod 507 flexibly extends into the upper chamber from the center of the upper end cap 513. The disc-shaped push block 506 is constructed at the lower end of the drive rod 507. Furthermore, the axes of the disc-shaped push block 506, the drive rod 507, and the hammer rod 502 coincide. In this embodiment, a first air duct 509 is constructed within the drive rod 507 to communicate with the outside world. This first air duct 509 communicates with a second air duct 511 constructed at the upper end of the hammer rod 502. An annular air duct 512 is constructed near the hammer rod 502 at the disc-shaped push block 506, which communicates with the upper chamber.

[0054] In this embodiment, when the upper end of the hammer rod 502 abuts the lower end of the disc-shaped push block 506, the first air channel 509, the second air channel 511, the annular air channel 512, and the upper chamber are connected. An exhaust connector 508 is constructed at the upper position of the drive rod 507. The exhaust connector 508 has a third air channel 510 that is connected to the first air channel 509. The drive rod 507 is connected to the vertical drive member. The specific structure of the vertical drive member is as follows: the vertical drive member includes a connecting sleeve 515, a transmission rod 516, and a fixing spring 518. The lower end of the connecting sleeve 515 is detachably connected to the upper end cover 513. The lower end of the transmission rod 516 extends from the upper end of the connecting sleeve 515 into the connecting sleeve 515. The fixing spring 518 is assembled in the connecting sleeve 515. The two ends of the fixing spring 518 are respectively connected to the lower end of the connecting sleeve 515 and the lower end of the transmission rod 516.

[0055] In this embodiment, the upper portion of the transmission rod 516 is connected to the upper portion of the drive rod 507 via a connecting plate 519 . A fourth air channel 517 is constructed in the transmission rod 516 , which connects the air source to the inner cavity of the connecting sleeve 515 .

[0056] The working principle and advantages of this embodiment are as follows: when it is necessary to adjust the distance by which the lower end of the hammer rod 502 extends from the hammer barrel 501, the pressure of the high-pressure gas pressed into the connecting sleeve 515 through the fourth air passage 517 is controlled to reduce the pressure of the high-pressure gas. In this way, the fixed spring 518 gradually contracts a certain distance from its stretched state, causing the fixed spring 518 to drive the transmission rod 516 downward for a certain distance. The transmission rod 516 drives the driving rod 507 downward for a corresponding distance via the connecting plate 519. The driving rod 507 drives the hammer rod 502 downward for a certain distance via the disc-shaped push block 506, thereby increasing the initial length of the hammer rod 502 extending from the hammer barrel 501. When it is necessary to reduce the initial length of the hammer rod 502 extending from the hammer barrel 501, the pressure in the connecting sleeve 515 is increased. Under the synchronous action of the fixed spring 518 and the high-pressure gas, the length of the hammer rod 502 extending from the hammer barrel 501 is reduced.

[0057] like Figures 3 to 6 As shown, the assembly seat 400 includes a plurality of chain links 401 that are connected and fixed in sequence. These chain links 401 are connected to form a circle ( Figure 3 shown) or fan-shaped ( Figure 9 、 10 The chain links 401 are fixed to the disc-shaped seat 404, and each chain link 401 is connected to a strip-shaped seat 402, which extends radially outward along the corresponding disc-shaped seat 404.

[0058] Specifically, a first fixing ear 407 and a second fixing ear 408 are respectively constructed at both ends of each chain link 401. The first fixing ears 407 and the second fixing ears 408 close to each other in adjacent chain links 401 are connected by connecting bolts 405. A connecting nut 409 is threadedly connected to the connecting bolts 405. The end of each connecting bolt 405 passes through the disc-shaped base body 404, and the connecting nut 409 is tightened on the end surface of the disc-shaped base body 404. A fixing joint 406 is constructed at one end of the strip base body 402. The fixed joint 406 is fixed at the middle position of the corresponding chain link 401; a fixing sleeve 410 is constructed at the center position of the disc-shaped base body 404, and a plurality of fastening holes 411 are evenly opened on the fixing sleeve 410 along its circumference. The lower end of the first cylinder body of the first driving cylinder 601 described below passes through the fixing sleeve 410, and a locking bolt is threadedly connected to each fastening hole 411. The end of the locking bolt is tightened on the outer circumferential surface of the first cylinder body, thereby achieving the fixation of the first driving cylinder 601 and the disc-shaped base body 404.

[0059] In this embodiment, a sliding groove 403 extending along the length direction of each strip-shaped seat body 402 is provided, and a sliding block 514 is installed on each adjustable pneumatic chiseling hammer 500. The sliding block 514 is slidably assembled in the corresponding sliding groove 403, and an opening and closing drive assembly 600 is assembled between the assembly seat 400 and the adjustable pneumatic chiseling hammer 500.

[0060] The opening and closing drive assembly 600 of this embodiment includes a first drive cylinder 601, an articulated seat 602 and multiple articulated rods 603, wherein the upper end of the first drive cylinder 601 is detachably connected to the lower end of the inclination adjustment mechanism 700, and the lower end of the first cylinder rod of the first drive cylinder 601 is connected to the articulated seat 602. The above-mentioned multiple articulated rods 603 are arranged at intervals along the circumference of the articulated seat 602, and one end of each articulated rod 603 is articulated to the articulated seat 602, and the end of the articulated rod 603 away from the articulated seat 602 is articulated to the hammer barrel 501 of the corresponding adjustable pneumatic chiseling hammer 500.

[0061] The working principle and advantages of this embodiment are as follows: regardless of whether the multiple adjustable pneumatic chiseling hammers 500 are arranged in a circular or fan-shaped arrangement, the articulated seat 602 moves vertically under the drive of the first cylinder rod of the first driving cylinder 601, thereby causing the articulated seat 602 to drive the adjustable pneumatic chiseling hammers 500 to move closer to or farther from each other radially along the articulated seat 602 via the articulated rod 603. That is, the adjustable pneumatic chiseling hammers 500 slide along the sliding groove 403 along with the sliding block 514 thereon, thereby realizing the opening and closing operation of the adjustable pneumatic chiseling hammers. Furthermore, when the adjustable pneumatic chiseling hammers 500 are brought together, localized fixed-point chiseling of the track slab can be performed; when the adjustable pneumatic chiseling hammers 500 are dispersed and moved away from each other, a large-scale dispersed chiseling operation of the track slab can be performed. This enables targeted chiseling of stubborn or loose areas on the track slab, thereby improving chiseling efficiency.

[0062] This embodiment adopts a connection method of multiple chain links 401, and the connection form of the chain links 401 can be changed according to needs, so that these chain links 401 form the required straight line, circular arc or curved curve form, so that the form of the strip base body 402 connected to these chain links 401 changes accordingly, and the arrangement form of the multiple adjustable pneumatic chiseling hammers 500 connected to these strip base bodies 402 is adjusted accordingly, so that corresponding chiseling operations can be performed on the track plate.

[0063] like Figure 11As shown, the assembly base 400 adopts another embodiment, comprising a second driving cylinder 800, a plate-shaped base body 412, and a plurality of the aforementioned strip-shaped base bodies 402. The upper end of the second cylinder body 801 of the second driving cylinder 800 is connected to the lower end of the tilt adjustment mechanism 700, and the lower end of the second cylinder rod 802 of the second driving cylinder 800 is rotatably connected to the plate-shaped base body 412. The plurality of strip-shaped base bodies 402 are mounted side by side on the plate-shaped base body 412. A plurality of adjustable pneumatic chiseling hammers 500 are arranged side by side. The sliding block 514 of each adjustable pneumatic chiseling hammer 500 is mounted on the sliding groove 403 of the corresponding strip-shaped base body 402. A fastening bolt is threadedly connected to the strip-shaped base body 402. The end of the fastening bolt extends into the sliding groove 403 and tightly abuts against the sliding block 514, thereby securing the adjustable pneumatic chiseling hammer 500 to the strip-shaped base body 402.

[0064] This embodiment controls the synchronous movement of these adjustable pneumatic chiseling hammers 500 to achieve line chiseling of the track plate, and realizes the synchronous displacement of these adjustable pneumatic chiseling hammers 500 through the running member 300, thereby realizing the gradual progress of multiple line chiseling operations and ultimately achieving the purpose of surface chiseling.

[0065] In this embodiment, the tilt angles of the adjustable pneumatic chipping hammers 500 can be adjusted by the tilt angle adjustment mechanism 700 to achieve synchronous tilting and chipping operations of the adjustable pneumatic chipping hammers 500 .

[0066] like Figure 12 As shown, a rotary drive mechanism 900 is disposed between the second drive cylinder 800 and the plate-like base 412 to drive the plate-like base 412 and the plurality of adjustable pneumatic chiseling hammers 500 thereon to rotate horizontally by a certain angle, thereby adjusting the horizontal angles of the adjustable pneumatic chiseling hammers 500. Specifically, the rotary drive mechanism 900 includes a second power motor mounted on an adapter, which is connected to the second cylinder rod 802 of the second drive cylinder 800. Thus, when the second cylinder rod 802 moves vertically, the second power motor also moves vertically. A transmission gear is fixed to the plate-like base 412 and is coaxially rotatably connected to the second cylinder rod 802. A driving gear is coaxially mounted on the output shaft of the second power motor, and the driving gear meshes with the transmission gear.

[0067] In this embodiment, the second power motor drives the driving gear to rotate a certain angle, so that the driving gear drives the plate-shaped base body 412 to rotate horizontally by a corresponding angle through the transmission gear, thereby realizing the horizontal rotation of multiple adjustable pneumatic chiseling hammers 500 on the plate-shaped base body 412 by a corresponding angle, thereby achieving the purpose of chiseling operations at different angles on the horizontal surface of the track plate.

[0068] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that they may modify the technical solutions described in the foregoing embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A device for automatically chiseling out a double-block ballastless track slab, characterized by: The invention comprises a transverse guide rail (100) having a plurality of buffer assemblies (200) mounted on the upper end thereof, each of the buffer assemblies (200) being connected to a rail vehicle via a lifting cylinder, at least one mobile multi-head chiseling unit being mounted on the transverse guide rail (100), the mobile multi-head chiseling unit comprising a running member (300) mounted on the transverse guide rail (100) and capable of moving along the guide of the transverse guide rail (100), the running member (300) being connected to an assembly seat (400) via an inclination adjustment mechanism (700), and a plurality of adjustable pneumatic chiseling hammers (500) being mounted on the assembly seat (400); The assembly seat (400) includes a plurality of chain links (401) connected and fixed in sequence, wherein the chain links (401) are connected to form a circle or a fan shape, and the chain links (401) are fixed to a disc-shaped seat body (404), and each of the chain links (401) is connected to a strip-shaped seat body (402) extending radially outward from the disc-shaped seat body (404), and each of the strip-shaped seat bodies (402) is provided with a sliding groove (403) extending along its length direction, and each of the adjustable pneumatic chiseling hammers (500) is provided with a sliding block (514), and the sliding block (514) is slidably assembled in the corresponding sliding groove (403), and an opening and closing drive assembly (600) is assembled between the assembly seat (400) and the adjustable pneumatic chiseling hammer (500); The opening and closing drive assembly (600) comprises a first drive cylinder (601) whose upper end is connected to the lower end of the tilt adjustment mechanism (700); a first cylinder rod of the first drive cylinder (601) is connected to a hinge seat (602); a plurality of hinge rods (603) are hinged to the hinge seat (602) at intervals along its circumference; and one end of each hinge rod (603) away from the hinge seat (602) is hinged to a corresponding adjustable pneumatic chiseling hammer (500).

2. The device for automatically chiseling away a double-block ballastless track slab according to claim 1, characterized in that: The buffer assembly (200) includes a buffer sleeve (201) whose lower end is detachably mounted on the upper end surface of the transverse guide rail (100); the lower end of the buffer rod (202) extends into the buffer sleeve (201) from the upper end of the buffer sleeve (201); a buffer spring (203) is sheathed around the buffer rod (202); and two ends of the buffer spring (203) are respectively connected and fixed to the upper end of the buffer rod (202) and the upper end of the buffer sleeve (201).

3. The device for automatically chiseling away a double-block ballastless track slab according to claim 1, characterized in that: The tilt adjustment mechanism (700) includes a first connecting seat (701) detachably connected to the running member (300), a first connecting ear (702) is constructed at the lower end of the first connecting seat (701), a second connecting seat (703) is provided below the first connecting seat (701), and a second connecting ear (704) is constructed at the upper end of the second connecting seat (703), the first connecting ear (702) and the second connecting ear (704) are pivotally connected through a connecting shaft (705), and the connecting shaft (705) is rotatably connected to the first connecting ear (702), and the connecting shaft (705) is fixedly connected to the second connecting ear (704), a first power motor (706) is fixedly installed on the first connecting seat (701), an output shaft of the first power motor (706) is coaxially connected to one end of the connecting shaft (705), and the second connecting seat (703) is connected to the assembly seat (400).

4. The device for automatically chiseling away a double-block ballastless track slab according to claim 1, characterized in that: The adjustable pneumatic chiseling hammer (500) includes a hammer rod (502) whose upper end extends from the lower end of a hammer barrel (501) into the hammer barrel, the axes of the hammer rod (502) and the hammer barrel (501) coincide with each other, a hammer body (505) is detachably connected to the lower end of the hammer rod (502), a piston (503) extending radially outward is constructed on the portion of the hammer rod (502) located in the hammer barrel (501), the piston (503) divides the inner cavity of the hammer barrel (501) into an upper chamber and a lower chamber, a connecting spring (504) is installed in the upper chamber, an upper end cover (513) is detachably connected to the upper end of the hammer barrel (501), two ends of the connecting spring (504) are respectively connected to the piston (503) and the upper end cover (513), and the upper chamber is communicated with an air source.

5. The device for automatically chiseling away a double-block ballastless track slab according to claim 4, characterized in that: A pneumatic vertical adjustment component is constructed on the upper part of the adjustable pneumatic chipping hammer (500), and the output end of the pneumatic vertical adjustment component is connected to the upper end of the hammer rod (502).

6. The device for automatically chiseling away a double-block ballastless track slab according to claim 5, characterized in that: The pneumatic vertical adjustment assembly includes a driving rod (507) whose lower end is movably extended into the upper chamber from the center of the upper end cover (513), a disc-shaped push block (506) is constructed at the lower end of the driving rod (507), a first air channel (509) communicating with the outside is constructed in the driving rod (507), the first air channel (509) is communicated with the second air channel (511) constructed at the upper end of the hammer rod (502), and an annular air channel (511) is constructed near the hammer rod (502) at the disc-shaped push block (506). 12), the annular air channel (512) is connected to the upper chamber, and when the upper end of the hammer rod (502) abuts against the lower end of the disc-shaped push block (506), the first air channel (509), the second air channel (511), the annular air channel (512) and the upper chamber are connected; an exhaust connector (508) is constructed at the upper position of the driving rod (507), and the exhaust connector (508) has a third air channel (510) connected to the first air channel (509), and the driving rod (507) is connected to the vertical driving member.

7. The device for automatically chiseling away a double-block ballastless track slab according to claim 6, characterized in that: The vertical driving member includes a connecting sleeve (515) whose lower end is connected to the upper end cover (513); the lower end of the transmission rod (516) extends from the upper end of the connecting sleeve (515) into the connecting sleeve (515); a fixing spring (518) is installed in the connecting sleeve (515); the two ends of the fixing spring (518) are respectively connected to the lower end of the connecting sleeve (515) and the lower end of the transmission rod (516); the upper part of the transmission rod (516) is connected to the upper part of the driving rod (507) through a connecting plate (519); a fourth air channel (517) is constructed in the transmission rod (516); the fourth air channel (517) connects the air source with the inner cavity of the connecting sleeve (515).

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