A CRTS III type slab ballastless track track slab fine adjustment device and method

Abstract

This invention discloses a track slab fine-tuning device and method for CRTSⅢ type slab track. The device includes an upper frame, a lower frame, an attitude adjustment mechanism, a travel and steering device, a fine-tuning mechanism, and four sets of turning mechanism components. The attitude adjustment mechanism drives the lower frame to swing. The fine-tuning mechanism includes a forward and backward moving mechanism, an L-shaped mounting plate, a vertical moving mechanism, a vertical fastening mechanism, a turning plate, a swinging mechanism, a lateral moving mechanism, and a lateral fastening mechanism. The method includes the following steps: 1. Hoisting and moving the fine-tuning device; 2. Adjusting the attitude of the lower frame; 3. Adjusting the track slab by the fine-tuning mechanism acting on the fine-tuning claws; 4. Adjusting the pressure bar. This invention achieves the lifting and lateral movement adjustment of the track slab through the operation of the fine-tuning claws by the fine-tuning mechanism, enabling rapid adjustment of the track slab's elevation and centerline. Furthermore, the swinging nature of the fine-tuning mechanism allows for centering adjustments under different ultra-high working conditions.

Description

Technical Field

[0001] This invention belongs to the field of ballastless track construction technology, and in particular relates to a track slab fine-tuning device and method for CRTSⅢ type slab ballastless track. Background Technology

[0002] China's high-speed railways use CRTSⅢ type slab track. The CRTSⅢ type slab track bed structure consists of prefabricated track slabs, a self-compacting concrete filling layer, and a base plate. After manual installation and rough adjustment of the CRTSⅢ type slab track slabs, fine adjustment of the track slab's elevation and lateral centerline is required, primarily to ensure high smoothness, high stability, and high safety of the high-speed railway line.

[0003] However, current track slab fine-tuning requires repeated manual adjustments, which is inefficient, labor-intensive, and increases the difficulty of adjustment. How to quickly fine-tune track slabs and reduce manpower input is a problem that needs to be solved during the construction of CRTSⅢ type slab track. Fine-tuning equipment has emerged, but it is bulky, and its mechanism cannot swing, making it unsuitable for various superelevation conditions.

[0004] Therefore, a well-designed and easy-to-operate CRTSⅢ type slab track fine-adjustment device is needed. Through the fine-adjustment mechanism, the fine-adjustment claw is operated to realize the lifting and lateral adjustment of the track slab. It can quickly complete the elevation and centerline adjustment of the track slab, save manpower and material resources, improve construction efficiency, and the fine-adjustment mechanism can swing to adapt to the centering adjustment of the transverse screw in the fine-adjustment claw under different ultra-high working conditions. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a track slab fine adjustment device for CRTSⅢ type slab track, which is reasonably designed and realizes the lifting and lateral movement adjustment of the track slab through the operation of the fine adjustment claw by the fine adjustment mechanism. It can quickly complete the adjustment of the elevation and center line of the track slab, save manpower and material resources, improve construction efficiency, and the fine adjustment mechanism can swing to adapt to the centering adjustment of the transverse screw in the fine adjustment claw under different ultra-high working conditions.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a CRTSⅢ type slab track slab fine adjustment device, characterized in that: it includes an upper frame body, a lower frame body, an attitude adjustment mechanism disposed between the upper frame body and the lower frame body, and two sets of walking and steering devices symmetrically disposed on the left and right sides of the upper frame body, as well as fine adjustment mechanisms disposed at the four corners of the lower frame body and four sets of turning mechanism assemblies arranged next to the fine adjustment mechanisms. The two sets of walking and steering devices have the same structure and each includes a steering walking support leg and a walking support leg. Each set of the screwing mechanism assembly includes two screwing mechanisms arranged on both sides of the fine adjustment mechanism, so the total number of screwing mechanisms is eight. The attitude adjustment mechanism causes the lower frame to swing; The fine-tuning mechanism includes a front-to-back moving mechanism, an L-shaped mounting plate disposed on the front-to-back moving mechanism, a vertical moving mechanism disposed on the L-shaped mounting plate, a mounting base disposed on the vertical moving mechanism, and a vertical fastening mechanism disposed on the mounting base, as well as a turning plate disposed at the bottom of the L-shaped mounting plate, a swinging mechanism disposed on the turning plate, a lateral moving mechanism disposed on the swinging mechanism, and a lateral fastening mechanism disposed on the lateral moving mechanism.

[0007] In the aforementioned CRTSⅢ type slab track fine-tuning device, the lower frame body includes two symmetrically arranged transverse frames and longitudinal frame columns at the ends of the two symmetrically arranged transverse frames. The transverse frame includes two transverse connecting rods and an installation frame connected to both ends of the two transverse connecting rods. The front and rear moving mechanism of the fine-tuning mechanism is set in the installation frame. The longitudinal frame column includes two symmetrically arranged outer longitudinal frame sleeves and an inner frame column passing through the two outer longitudinal frame sleeves. The outer longitudinal frame sleeve includes an outer longitudinal frame rod and an outer frame sleeve portion integrally formed with the outer longitudinal frame rod. The top of the outer frame sleeve portion is provided with an upper waist-shaped hole. A limit rod is provided on the inner frame column. The limit rod extends out of the upper waist-shaped hole and can slide along the upper waist-shaped hole. The L-shaped mounting plate is installed on the outer longitudinal frame rod via support columns.

[0008] The aforementioned CRTSⅢ type slab track fine-tuning device further includes a screwing mechanism comprising a power housing, a motor reducer power component disposed within the power housing, an outer screwing sleeve component that is drivenly connected to the motor reducer power component, and an open U-shaped component disposed at the bottom of the power housing and located on one side of the outer screwing sleeve component. A longitudinal electric push rod is disposed on the longitudinal frame column in the lower frame body, and the telescopic end of the longitudinal electric push rod is connected to the upper extension plate on the power housing. A bottom linear slide rail is disposed between the top of the power housing and the top of the longitudinal frame column.

[0009] The aforementioned CRTSⅢ type slab track fine-tuning equipment further includes a front and rear moving mechanism comprising a front and rear moving motor, a first reducer connected to the front and rear moving motor, a front and rear lead screw connected to the first reducer via a belt drive component, and a lead screw nut threaded onto the front and rear lead screws. The lead screw nut is mounted on the vertical side wall of the L-shaped mounting plate. The vertical fastening mechanism includes a fastening motor, a second reducer, and a belt drive component that connects the fastening motor and the second reducer. The output shaft of the second reducer is connected to a screwing sleeve. The second reducer is mounted on the vertical moving mechanism. The swing mechanism includes an upper mounting base on the turning plate and an electric push rod mounted on the upper mounting base. The telescopic end of the electric push rod is connected to a transverse seat. The upper part of the transverse seat and the lower part of the turning plate are hinged together by a hinge shaft. The transverse moving mechanism connects the transverse seat and the moving seat. The transverse fastening mechanism is mounted on the moving seat.

[0010] The aforementioned CRTSⅢ type slab track fine-tuning device further includes, in part, an adjusting leg, a lateral telescopic mechanism, and a wheel seat located at the bottom of the adjusting leg, as well as a movable wheel located within the wheel seat. The lateral telescopic mechanism includes a lateral cylinder and two symmetrically arranged lateral telescopic components on the upper and lower sides of the lateral cylinder. The lateral telescopic component includes an outer cylinder connected to the upper frame and an inner sleeve connected to the adjusting leg, the inner sleeve being able to slide along the outer cylinder. A roller is provided on the lower part of the outer side wall of the wheel seat. The steering outrigger is also equipped with a steering component.

[0011] The aforementioned CRTSⅢ type slab track fine-tuning device further includes an adjusting leg comprising an outer leg sleeve, an inner leg cylinder slidably fitted inside the outer leg sleeve, and a leg cylinder disposed inside the inner leg cylinder. The top of the inner leg cylinder is lower than the top of the outer leg sleeve. The fixed end of the leg cylinder is disposed inside the top of the outer leg sleeve. The telescopic end of the leg cylinder is installed inside the inner leg cylinder. The protruding end of the inner sleeve is connected to the outer leg sleeve. The wheel seat is equipped with a moving drive mechanism, which includes a moving motor and a third reducer. The third reducer and the moving wheel are connected by a sprocket and chain drive.

[0012] In the aforementioned CRTSⅢ type slab track fine-tuning device, the bottom of the inner leg cylinder of the traveling leg is directly connected to the wheel seat; The steering component is located between the bottom of the inner outrigger cylinder and the wheel seat in the steering outrigger. The steering component is a steering cylinder. The bottom of the inner outrigger cylinder is provided with a ring plate, which is installed on the transition sleeve. The top of the wheel seat is provided with a rotating plate. The steering cylinder is installed next to the transition sleeve. The telescopic end of the steering cylinder is hinged to the top of the vertical rod fixed on the rotating plate. The rotating plate includes a lower ring plate, a tapered extension plate disposed on the outer wall of the lower ring plate, and a vertical shaft disposed at the center of the lower ring plate. The vertical shaft is rotatably inserted into the transition sleeve, and the lower ring plate is connected to the wheel seat.

[0013] The aforementioned CRTSⅢ type slab track fine-tuning device further includes a posture adjustment mechanism comprising a lateral adjustment mechanism and two lifting adjustment mechanisms symmetrically arranged at both ends of the lateral adjustment mechanism. Each of the two lifting adjustment mechanisms includes a base plate, an inner vertical sleeve mounted on the base plate, an outer vertical sleeve slidably sleeved outside the inner vertical sleeve, and a lifting cylinder connecting the base plate and the upper part of the outer vertical sleeve. The outer vertical sleeve is provided with two sets of upper linear slide rails. The upper slide rail of the upper linear slide rail is mounted on the upper car frame to connect with the upper car frame. The upper slider of the upper linear slide rail is connected to the outer vertical sleeve, and the upper slider and the upper slide rail slide together. The lateral adjustment mechanism includes a double-rod hydraulic cylinder disposed between two outer vertical sleeves and two lateral connecting rods arranged symmetrically about the double-rod hydraulic cylinder. The base plate of one of the lifting adjustment mechanisms is hinged to the connecting column of the lower frame body, and the base plate of the other lifting adjustment mechanism is hinged to the lateral connecting rod of the lower frame body through a lower linear slide rail. The lower linear slide rail is mounted on the transverse connecting rod of the lower frame body. A transition plate is provided on the lower slider of the lower linear slide rail. The transition plate and the two vertical sides of the base plate in the other lifting adjustment mechanism are hinged by a hinge shaft. The cylinder body of the double-rod hydraulic cylinder is equipped with a connecting seat, which is connected to the interior of the upper frame.

[0014] Meanwhile, a method for adjusting a track plate is provided. The track plate is located above a base plate, and two fine-tuning claws are connected to both sides of the track plate. The vertical plates of the fine-tuning claws are connected to both sides of the track plate by bolts. The base of the fine-tuning claws is supported on the base plate, and a pressure bar is installed on the track plate. The method includes the following steps: Step 1: Fine-tuning the hoisting and movement of the equipment: Step 101: Hoist the fine-tuning equipment onto the base plate so that the moving wheels in the walking and steering device are in contact with the base plate; Step 102: The fine-tuning device is moved by the rolling of the moving wheels in the walking and steering device until the fine-tuning device moves above the track plate and the four fine-tuning mechanisms approach the four fine-tuning claws respectively; Step 2: Adjusting the posture of the lower frame: The attitude adjustment mechanism in the fine-tuning equipment drives the adjustment of the lower frame body, so that the horizontal frames and track plates in the lower frame body are arranged in parallel vertically. Step 3: The fine-tuning mechanism adjusts the track plate using the fine-tuning claws. The vertical and horizontal fastening mechanisms in the fine-tuning mechanism are aligned with the vertical and horizontal lead screws on the fine-tuning claws, respectively, and the elevation and centerline of the track plate are adjusted. Step 4: Adjusting the pressure bar.

[0015] Further, step two, the specific process is as follows: Step 201: When the fine-tuning equipment is located above the track plate to be adjusted, the adjusting support leg is raised and lowered by the steering support leg and the support leg cylinder in the traveling support leg. The raising and lowering of the adjusting support leg will drive the upper frame and the lower frame to rise and fall until the distance between the bottom surface of the transverse frame in the lower frame and the top surface of the track plate meets the design requirements. Step 202: With the horizontal connecting rod and double-rod hydraulic cylinders arranged horizontally, the extension and retraction of one lifting cylinder is greater than that of the other lifting cylinder. With the base plate and connecting column in one of the lifting adjustment mechanisms hinged, and the base plate and horizontal connecting rod in the other lifting adjustment mechanism slidingly connected through the lower linear slide rail, the lower frame body swings around the connecting column. With the lower slider and transition plate in the lower linear slide rail hinged to the two vertical sides of the base plate in the other lifting adjustment mechanism, the lower slide rail in the lower linear slide rail slides and swings with the lower frame body in the lower slider in the lower linear slide rail until the horizontal frame and track plate in the lower frame body are arranged in parallel. Step 3, the specific process is as follows: Step 301: The front and rear moving motor works, and drives the front and rear lead screws to rotate through the first reducer and belt drive components. With the screw nut seat and the front and rear lead screws threaded together, the screw nut seat moves along the length direction of the front and rear lead screws. Then, the screw nut seat drives the fine adjustment mechanism to move back and forth through the L-shaped mounting plate until the screw sleeve and the vertical lead screw are coaxially arranged. The upper part of the transverse seat and the lower part of the turning plate are hinged by a hinge shaft. The electric push rod extends and retracts, causing the transverse seat to swing around the hinge shaft, thereby causing the moving seat, the transverse moving mechanism and the transverse fastening mechanism to swing, so that the center of the transverse fastening mechanism and the transverse lead screw are arranged coaxially. Step 302: Move the screwing sleeve up and down through the vertical moving mechanism until the screwing sleeve is fitted onto the vertical lead screw; The lateral moving mechanism drives the screwing sleeve in the lateral fastening mechanism to move left and right until the screwing sleeve in the lateral fastening mechanism is fitted onto the lateral lead screw. Step 303: By operating the fastening motor, the screw sleeve in the transverse fastening mechanism drives the transverse screw rod to rotate, and the transverse screw nut on the transverse screw rod drives the track plate to move laterally. The motor operates, and the screw sleeve in the vertical fastening mechanism drives the vertical screw rod to rotate. The vertical screw nut on the vertical screw rod then moves the track plate up and down until the elevation and centerline meet the design requirements.

[0016] Compared with the prior art, the present invention has the following advantages: 1. This invention has a simple structure, reasonable design, and is easy to install and operate, enabling fine adjustment of the track slab in the CRTSⅢ type slab track.

[0017] 2. This invention is a single-line three-type plate fine adjustment device with multiple degrees of freedom, which can adapt to various complex terrains and working conditions such as bridges, tunnels, and roadbeds.

[0018] 3. The present invention is equipped with steering and walking outriggers, which drive the entire fine-tuning equipment to move, thereby adapting to the construction in the direction of railway extension and having good adaptability.

[0019] 4. The fine-tuning mechanism used in this invention includes a forward and backward moving mechanism, a vertical moving mechanism, a vertical fastening mechanism, a swinging mechanism, a lateral moving mechanism, and a lateral fastening mechanism. The forward and backward moving mechanism drives each fine-tuning mechanism to adjust along the mileage direction so that the vertical fastening mechanism and the vertical lead screw on the fine-tuning claw are aligned. Then, the vertical moving mechanism drives the vertical fastening mechanism to move up and down. The vertical fastening mechanism is sleeved on the vertical lead screw and screwed to drive the track plate to rise and fall. The swing mechanism drives the lateral moving mechanism and the lateral fastening mechanism to swing, so that the lateral fastening mechanism and the lateral screw on the fine-tuning claw are aligned. Then, the lateral moving mechanism drives the lateral fastening mechanism to move left and right. The lateral fastening mechanism is fitted on the lateral screw and screwed to drive the track slab to move laterally. This can quickly complete the adjustment of the track slab's elevation and center line, save manpower and material resources, and improve construction efficiency.

[0020] 5. The swing mechanism used in this invention includes an electric push rod and a transverse seat. Since the upper part of the transverse seat and the lower part of the turning plate are hinged by a hinge shaft, when the electric push rod extends or retracts, it drives the transverse seat to swing around the hinge shaft, thereby driving the swing of the moving seat, the transverse moving mechanism and the transverse fastening mechanism to adapt to different ultra-high working conditions, and improve the adaptability of the transverse fastening mechanism and the transverse lead screw in the fine adjustment claw.

[0021] 6. The screwing mechanism used in this invention is used to operate the screwing mechanism to screw the screw on the pressure bar until the horizontal pressure bar on the pressure bar is in contact with the top surface of the track plate. The pressure bar limits the track plate and prevents the track plate from floating when concrete is poured at the bottom of the track plate later.

[0022] 7. The method for fine-tuning the track slab of the present invention is simple in steps, easy to implement and operate, and ensures that the elevation and centerline of the track slab meet the design requirements.

[0023] 8. The ballastless track method of this invention has good performance. First, the fine-tuning equipment is hoisted and moved; second, the attitude adjustment mechanism in the fine-tuning equipment drives the adjustment of the lower frame, so that the transverse frames and track slabs in the lower frame are arranged vertically and horizontally; then, the fine-tuning mechanism acts on the fine-tuning claws to adjust the track slab; and the screwing mechanism is operated to screw the screw on the pressure bar until the transverse pressure bar is in contact with the top surface of the track slab. This allows for the lifting, lowering, and lateral adjustment of the track slab through the operation of the fine-tuning claws, enabling rapid adjustment of the track slab's elevation and centerline.

[0024] In summary, the present invention is reasonably designed. By operating the fine adjustment claw through the fine adjustment mechanism, the track slab can be raised, lowered, and moved laterally. This allows for rapid adjustment of the track slab's elevation and centerline, saving manpower and resources and improving construction efficiency. Furthermore, the fine adjustment mechanism can swing to adapt to the centering adjustment of the transverse lead screw in the fine adjustment claw under different ultra-high working conditions.

[0025] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the track slab fine-tuning device in the CRTSⅢ type slab track of the present invention.

[0027] Figure 2 for Figure 1 (Structure diagram after removing the protective shell)

[0028] Figure 3 This is a schematic diagram of the horizontal frame structure of the present invention.

[0029] Figure 4 This is a schematic diagram of the longitudinal frame column of the present invention.

[0030] Figure 5 This is a schematic diagram of the screwing mechanism of the present invention.

[0031] Figure 6 This is a schematic diagram of the fine-tuning mechanism of the present invention.

[0032] Figure 7 This is a schematic diagram of the forward and backward moving mechanism in the fine-tuning mechanism of the present invention.

[0033] Figure 8 This is a schematic diagram of the structure of the movable base of the present invention.

[0034] Figure 9 This is a schematic diagram of the vertical moving mechanism of the present invention.

[0035] Figure 10 This is a schematic diagram of the steering and walking support leg of the present invention.

[0036] Figure 11This is a schematic diagram of the structure of the mobile drive mechanism of the present invention.

[0037] Figure 12 This is a schematic diagram of the transition sleeve of the present invention.

[0038] Figure 13 This is a schematic diagram of the structure of the rotating plate of the present invention.

[0039] Figure 14 This is a schematic diagram of the attitude adjustment mechanism of the present invention.

[0040] Figure 15 This is a schematic diagram of the upper frame of the present invention.

[0041] Figure 16 This is a schematic diagram of the track plate, fine-tuning claw, and pressure bar of the present invention.

[0042] Figure 17 This is a schematic diagram of the fine-tuning claw of the present invention.

[0043] Figure 18 This is a diagram showing the usage state of the vehicle frame of the present invention when it is tilted (i.e., when the track slab is tilted too high).

[0044] Explanation of reference numerals in the attached figures: 1—Fine-tuning mechanism; 11—Forward and backward moving motor; 12—First reducer; 13—Front and rear lead screws; 14—Lead screw nut seat; 15—Motor fastening; 16—Synchronous belt; 17—Main synchronous belt pulley; 18—Die synchronous belt pulley; 19—Second reducer; 110—Vertical cylinder; 111—Mounting base; 112—Screw-on sleeve; 113—L-shaped mounting plate; 114—Screw seat; 115—Front and rear sliders; 116—Front and rear slide rails; 117—Slider; 118—Slide rail; 119—Mounting block; 120—Horizontal fastening mechanism; 121—Support column; 122—Lower protective shell; 123—Vertical mounting base; 130—Turn plate; 131—Upper mounting base; 132—Electric push rod; 133—First pull rope displacement sensor; 140—Horizontal seat; 141—Hinge shaft; 142—Transverse cylinder; 150—Moving seat; 151—Base section; 152—Upper connecting lug; 153—Lower mounting section; 2—Steering and walking outrigger; 21—Outer outrigger sleeve; 22—Outer sleeve section; 23—Horizontal hydraulic cylinder; 24—Inner sleeve section; 25—Moving motor; 26—Third reducer; 27—Transition sleeve; 271—Annular body; 272—Straight section; 273—Lower ear; 28—Wheel seat; 29—Transformer plate; 291—Lower ring plate; 292—Conical extension plate; 293—Vertical axis; 210—Roller; 211—Moving wheel; 212—Steering cylinder; 213—Inner outrigger cylinder; 216—Output shaft; 217—Driving sprocket; 218—Chain; 219—Driven sprocket; 220—Wheel axle; 221—Ring plate; 3—Traveling outrigger; 4—Transverse frame; 41—Horizontal connecting rod; 42—Mounting frame; 43—Connecting column; 44—Supplemental lighting panel; 5—Attitude adjustment mechanism; 51—Outer vertical sleeve; 52—Lifting cylinder; 53—Upper linear slide rail; 54—Inner vertical sleeve; 55—Base plate; 56—Lower linear guide rail; 57—Double-bar hydraulic cylinder; 58—Transverse connecting rod; 59—Connector; 510—Connector plate; 511—Visual camera; 512—Second rope displacement sensor; 513—Upper slide rail; 514—Transition plate; 6—Upper frame; 61—First mounting position; 62—Second mounting position; 63—Third mounting position; 64—Upper casing; 7—Longitudinal frame post; 71—Outer longitudinal frame member; 72—Outer frame sleeve; 73—Inner frame column; 74—Limiting rod; 75—Upper waist-shaped hole; 77—Rod guard plate; 81—Control cabinet; 82—Battery; 83—Air compressor; 84—Hydraulic pump station; 9—Turning mechanism; 91—Longitudinal electric push rod; 92—Bottom linear slide rail; 93—Power housing; 94—External screw-in sleeve; 95—Open U-shaped piece; 96—Upper extension plate; 101—Base plate; 102—Track plate; 103—Template; 104—Fine-adjusting jaw; 1041—Vertical lead screw; 1042—Vertical lead screw nut; 1043—Vertical plate; 1044—Horizontal lead screw; 1045—Horizontal lead screw nut; 1046—Base; 105—Pressure bar. Detailed Implementation

[0045] like Figures 1 to 15The CRTSⅢ type slab track fine-tuning device shown includes an upper frame 6, a lower frame, an attitude adjustment mechanism 5 disposed between the upper frame 6 and the lower frame, two sets of walking and steering devices symmetrically disposed on the left and right sides of the upper frame 6, and fine-tuning mechanisms 1 disposed at the four corners of the lower frame and four sets of turning mechanism assemblies disposed next to the fine-tuning mechanisms 1. The two sets of walking and steering devices have the same structure and each includes a steering walking support leg 2 and a walking support leg 3. Each set of the screwing mechanism assembly includes two screwing mechanisms 9 arranged on both sides of the fine adjustment mechanism 1, so the total number of screwing mechanisms 9 is eight. The attitude adjustment mechanism 5 drives the lower frame to swing; The fine-tuning mechanism 1 includes a front-to-back moving mechanism, an L-shaped mounting plate 113 disposed on the front-to-back moving mechanism, a vertical moving mechanism disposed on the L-shaped mounting plate 113, a mounting base 111 disposed on the vertical moving mechanism, and a vertical fastening mechanism disposed on the mounting base 111, as well as a turning plate 130 disposed at the bottom of the L-shaped mounting plate 113, a swinging mechanism disposed on the turning plate 130, a lateral moving mechanism disposed on the swinging mechanism, and a lateral fastening mechanism 120 disposed on the lateral moving mechanism.

[0046] like Figure 3 and Figure 4 As shown, in this embodiment, the lower frame includes two symmetrically arranged transverse frames 4 and longitudinal frame columns 7 at the ends of the two symmetrically arranged transverse frames 4. The transverse frame 4 includes two transverse connecting rods 41 and a mounting frame 42 connected to both ends of the two transverse connecting rods 41. The front and rear movement mechanism of the fine adjustment mechanism 1 is arranged in the mounting frame 42. The longitudinal frame column 7 includes two symmetrically arranged outer longitudinal frame sleeves and an inner frame column 73 passing between the two outer longitudinal frame sleeves. The outer longitudinal frame sleeve includes an outer longitudinal frame rod 71 and an outer frame sleeve portion 72 integrally formed with the outer longitudinal frame rod 71. The top of the outer frame sleeve portion 72 is provided with an upper waist-shaped hole 75. The inner frame column 73 is provided with a limiting rod 74. The limiting rod 74 extends out of the upper waist-shaped hole 75 and can slide along the upper waist-shaped hole 75. The L-shaped mounting plate 113 is mounted on the outer longitudinal frame rod 71 via the support column 121.

[0047] like Figure 5As shown, in this embodiment, the screwing mechanism 9 includes a power housing 93, a motor reducer power component disposed within the power housing 93, and an outer screwing sleeve 94 that is connected to the motor reducer power component for transmission, as well as an open U-shaped component 95 disposed at the bottom of the power housing 93 and located on one side of the outer screwing sleeve 94. A longitudinal electric push rod 91 is disposed on the longitudinal frame column 7 in the lower frame body. The telescopic end of the longitudinal electric push rod 91 is connected to the upper extension plate 96 on the power housing 93. A bottom linear slide rail 92 is disposed between the top of the power housing 93 and the top of the longitudinal frame column 7.

[0048] like Figure 6 and Figure 7 As shown, in this embodiment, the forward and backward moving mechanism includes a forward and backward moving motor 11, a first reducer 12 that is connected to the forward and backward moving motor 11, a front and rear lead screw 13 that is connected to the first reducer 12 through a belt drive component, and a lead screw nut seat 14 that is threaded on the front and rear lead screw 13. The lead screw nut seat 14 is installed on the vertical side wall of the L-shaped mounting plate 113. The vertical fastening mechanism includes a fastening motor 15, a second reducer 19, and a belt drive component that connects the fastening motor 15 and the second reducer 19. The output shaft of the second reducer 19 is connected to a screwing sleeve 112. The second reducer 19 is mounted on the vertical moving mechanism. The swing mechanism includes an upper mounting base 131 mounted on a turning plate 130 and an electric push rod 132 mounted on the upper mounting base 131. The telescopic end of the electric push rod 132 is connected to a transverse seat 140. The upper part of the transverse seat 140 and the lower part of the turning plate 130 are hinged together by a hinge shaft 141. The transverse moving mechanism connects the transverse seat 140 and the moving seat 150. The transverse fastening mechanism 120 is mounted on the moving seat 150.

[0049] like Figure 10 and Figure 11 As shown, in this embodiment, both the steering outrigger 2 and the travel outrigger 3 include an adjustable outrigger, a lateral telescopic mechanism, and a wheel seat 28 disposed at the bottom of the adjustable outrigger, as well as a movable wheel 211 disposed within the wheel seat 28. The lateral telescopic mechanism includes a lateral cylinder 23 and two symmetrically arranged lateral telescopic components on the upper and lower sides of the lateral cylinder 23. The lateral telescopic component includes an outer cylinder portion 22 connected to the upper frame body 6 and an inner sleeve portion 24 connected to the adjustable outrigger. The inner sleeve portion 24 can slide along the outer cylinder portion 22. A roller 210 is disposed on the lower part of the outer side wall of the wheel seat 28. The steering outrigger 2 is also equipped with a steering component.

[0050] In this embodiment, the adjustable outrigger includes an outer outrigger sleeve 21, an inner outrigger sleeve 213 slidably sleeved inside the outer outrigger sleeve 21, and an outrigger cylinder disposed inside the inner outrigger sleeve 213. The top of the inner outrigger sleeve 213 is lower than the top of the outer outrigger sleeve 21. The fixed end of the outrigger cylinder is disposed inside the top of the outer outrigger sleeve 21. The telescopic end of the outrigger cylinder is installed inside the inner outrigger sleeve 213. The protruding end of the inner sleeve portion 24 is connected to the outer outrigger sleeve 21. The wheel seat 28 is provided with a moving drive mechanism, which includes a moving motor 25 and a third reducer 26. The third reducer 26 and the moving wheel 211 are connected by a sprocket and chain drive.

[0051] like Figure 12 and Figure 13 As shown, in this embodiment, the bottom of the inner leg cylinder 213 of the walking support leg 3 is directly connected to the wheel seat 28; The steering component is located between the bottom of the inner outrigger cylinder 213 and the wheel seat 28 in the steering outrigger 2. The steering component is a steering cylinder 212. The bottom of the inner outrigger cylinder 213 is provided with a ring plate 221, which is installed on the transition sleeve 27. The top of the wheel seat 28 is provided with a rotating plate 29. The steering cylinder 212 is installed next to the transition sleeve 27. The telescopic end of the steering cylinder 212 is hinged to the top of the vertical rod fixed on the rotating plate 29. The rotating plate 29 includes a lower ring plate 291, a tapered extension plate 292 disposed on the outer side wall of the lower ring plate 291, and a vertical shaft 293 disposed at the center of the lower ring plate 291. The vertical shaft 293 is rotatably inserted into the transition sleeve 27. The lower ring plate 291 is connected to the wheel seat 28.

[0052] like Figure 14 As shown, in this embodiment, the attitude adjustment mechanism 5 includes a lateral adjustment mechanism and two lifting adjustment mechanisms symmetrically arranged at both ends of the lateral adjustment mechanism. Each of the two lifting adjustment mechanisms includes a base plate 55, an inner vertical sleeve 54 mounted on the base plate 55, an outer vertical sleeve 51 slidably sleeved outside the inner vertical sleeve 54, and a lifting cylinder 52 connecting the upper part of the base plate 55 and the outer vertical sleeve 51. The outer vertical sleeve 51 is provided with two sets of upper linear slide rails 53. The upper slide rail 513 of the upper linear slide rail 53 is mounted on the upper frame 6 to connect with the upper frame 6. The upper slider of the upper linear slide rail 53 is connected to the outer vertical sleeve 51. The upper slider and the upper slide rail 513 slide together. The lateral adjustment mechanism includes a double-rod hydraulic cylinder 57 disposed between two outer vertical sleeves 51 and two lateral connecting rods 41 symmetrically arranged about the double-rod hydraulic cylinder 57. The base plate 55 in one of the lifting adjustment mechanisms is hinged to the connecting column 43 of the lower frame. The base plate 55 in the other lifting adjustment mechanism is slidably and hinged to the lateral connecting rod 41 of the lower frame through the lower linear slide rail 56. The lower linear slide rail 56 is mounted on the transverse connecting rod 41 of the lower frame body. The lower slide of the lower linear slide rail 56 is provided with a transition plate 514. The transition plate 514 and the two vertical sides of the base plate 55 in the other lifting adjustment mechanism are hinged by a hinge shaft. The cylinder body of the double-rod hydraulic cylinder 57 is provided with a connecting seat 59, which is connected to the interior of the upper frame 6.

[0053] In this embodiment, during specific implementation, the cylinder body of the double-rod hydraulic cylinder 57 remains stationary, while the piston rod of the double-rod hydraulic cylinder 57 extends and retracts, causing the lower frame to move laterally.

[0054] In this embodiment, the roller 210 can move along the vertical retaining wall next to the base plate 101.

[0055] In this embodiment, the forward and backward moving mechanism is set inside the mounting frame 42. The mounting frame 42 is provided with a wire feeding nut 14 through which a sliding waist-shaped hole is provided on the side wall near the L-shaped mounting plate 113. The mounting frame 42 and the L-shaped mounting plate 113 are provided with a front and rear slide rail 116 and a front and rear slider 115 on their respective side walls. The front and rear slide rail 116 is installed on the side wall of the mounting frame 42, and the front and rear slider 115 is connected to the side wall of the L-shaped mounting plate 113.

[0056] In this embodiment, when specifically implemented, the side of the mounting frame 42 away from the L-shaped mounting plate 113 is provided with an inner protective plate.

[0057] In this embodiment, when implemented, a rod guard plate 77 is also added to the area on the outer longitudinal frame rod 71 where the longitudinal electric push rod 91 is installed to protect the actuator.

[0058] The cross-section of the outer frame sleeve 72 is larger than that of the outer longitudinal frame rod 71, which facilitates the insertion and connection of the inner frame column 73. A limiting rod 74 is provided to extend out of the upper waist-shaped hole 75 and slide along the upper waist-shaped hole 75, which can realize the adjustment of the extension length of the inner frame column 73. Specifically, the adjustment of the extension length of the inner frame column 73 is achieved by moving the screw nut 14 along the length direction of the front and rear screw rod 13 by moving the front and rear moving motor 11, which in turn drives the outer longitudinal frame rod 71 to slide through the L-shaped mounting plate 113. When adjusted to the correct position, because the screw nut 14 and the front and rear screws 13 are threaded together, a trapezoidal screw can be used, thus achieving self-locking.

[0059] In this embodiment, when specifically implemented, an upper protective shell 64 is provided on the upper frame 6, and a lower protective shell 122 is provided outside the fine adjustment mechanism 1.

[0060] In this embodiment, both the external screwing sleeve 94 and the screwing sleeve 112 can be screwed using the sleeve component in patent CN121781483A, "A Turnout Fine Adjustment System and Method".

[0061] In this embodiment, when implemented, the two ends of the longitudinal electric push rod 91 are installed on the outer side wall of the outer longitudinal frame rod 71 through U-shaped parts, the slide rail of the bottom linear slide rail 92 is installed on the bottom surface of the outer longitudinal frame rod 71, and the slider of the bottom linear slide rail 92 is connected to the top surface of the power housing 93.

[0062] The longitudinal electric push rod 91 extends and retracts, which drives the slider on the power housing 93 to move along the slide rail of the bottom linear slide rail 92 via the upper extension plate 96. The power housing 93 then drives the internal external screw sleeve 94 and open U-shaped part 95 to move.

[0063] In this embodiment, the vertical movement mechanism includes a vertical cylinder 110 and a vertical linear guide rail. The vertical linear guide rail includes a slider 117 and a slide rail 118 that is installed in conjunction with the slider 117. The telescopic end of the vertical cylinder 110 is connected to a mounting block 119, and the mounting block 119 is connected to the slider 117. The vertical cylinder 110 is mounted on a vertical mounting base 123 that is connected to the inner side of the L-shaped mounting plate 113. The lateral movement mechanism includes a lateral cylinder 142 and a lateral linear guide rail. The lateral cylinder 142 is mounted on a lateral seat 140. The lateral slider of the lateral linear guide rail is connected to the bottom of the lateral seat 140. The lateral guide rail is mounted on a movable seat 150. One end of the movable seat 150 is connected to the telescopic end of the lateral cylinder 142. The lateral cylinder 142 drives the movable seat 150 and the lateral guide rail to move relative to the lateral slider. The lateral fastening mechanism 120 has the same structure as the vertical fastening mechanism.

[0064] In this embodiment, the front and rear moving motors 11 and the first reducer 12 are arranged coaxially, and the first reducer 12 and the front and rear lead screws 13 are also connected by belt drive components so that the two are arranged in parallel, saving installation space.

[0065] In this embodiment, the fastening motor 15 and the second reducer 19 are arranged in parallel, and the second reducer 19 and the screwing sleeve 112 are arranged coaxially.

[0066] In this embodiment, when implemented, both ends of the front and rear lead screws 13 are rotatably mounted on the lead screw seat 114, and the lead screw seat 114 is installed inside the mounting frame 42; In this embodiment, when the front and rear moving motor 11 is working, it drives the front and rear lead screws 13 to rotate through the first reducer 12 and the belt drive component. With the lead screw seat 14 and the front and rear lead screws 13 threadedly connected, the lead screw seat 14 moves along the length direction of the front and rear lead screws 13. The lead screw seat 14 is driven by the L-shaped mounting plate 113, and the entire fine adjustment mechanism moves back and forth. In this embodiment, the belt drive component includes a main synchronous pulley 17, a driven synchronous pulley 18, and a synchronous belt 16 that drives the main synchronous pulley 17 and the driven synchronous pulley 18. The main synchronous pulley 17 is mounted on the output shaft of the motor, the driven synchronous pulley 18 is mounted on the input shaft of the reducer, and the screwing sleeve 112 is drivenly connected to the output shaft of the reducer.

[0067] In this embodiment, the turning plate 130 is provided with a clearance hole for the screw sleeve 112 to pass through. The turning plate 130 is provided for the installation of the electric push rod 132, and also for the upper part of the transverse seat 140 and the lower part of the turning plate 130 to be hinged by the hinge shaft 141. In this way, when the electric push rod 132 extends or retracts, it drives the transverse seat 140 to swing around the hinge shaft 141, which improves adaptability.

[0068] In this embodiment, the movable seat 150 includes a base part 151, an upper connecting ear plate 152 disposed on the top of the base part 151 and connected to the telescopic end of the transverse cylinder 142, and a lower mounting part 153 disposed at the bottom of the base part 151 for mounting the second reducer in the transverse fastening mechanism 120. The base part 151 is provided for the installation of the transverse slide rail in the transverse linear guide rail, and also facilitates the location of the screwing sleeve in the transverse fastening mechanism 120 at the bottom, making the whole compact.

[0069] In this embodiment, specifically, the mounting block 119 is provided with a reducer base 111 for mounting the second reducer 19 in the vertical fastening mechanism.

[0070] In this embodiment, when implemented, the turning plate 130 is provided with a first rope displacement sensor 133 for measuring the extension and retraction displacement of the electric push rod 132, and then feeding back the swing angle.

[0071] In this embodiment, a first laser sensor is provided at the bottom of the reducer base 111 and a second laser sensor is provided inside the transverse base 140. The positioning of the screw sleeve 112 in the vertical fastening mechanism is realized based on the first laser sensor, and the positioning of the screw sleeve 112 in the transverse fastening mechanism 120 is realized based on the second laser sensor. A third laser sensor is installed inside the power housing 93. The emitting surfaces of the first laser sensor to the third laser sensor all face downwards. The positioning of the external screw sleeve 94 is achieved based on the third laser sensor, which facilitates rapid centering.

[0072] In this embodiment, the outer cylinder 22 is provided with an external mounting hole, and the inner sleeve 24 is provided with a first internal mounting hole and a second internal mounting hole. When the transverse cylinder 23 retracts, the external mounting hole and the first internal mounting hole correspond and the mounting pin is locked. When adjustment is required, the pin is removed. When the transverse cylinder 23 extends, the external mounting hole and the second internal mounting hole correspond and the mounting pin is locked.

[0073] In this embodiment, the outrigger cylinder is not shown in the diagram. It is provided so that the outrigger cylinder can extend and retract to drive the outer outrigger sleeve 21 to rise and fall along the inner outrigger sleeve 213.

[0074] In this embodiment, the sprocket chain includes a driving sprocket 217 mounted on the output shaft 216 of the third reducer 26, a driven sprocket 219 rotatably mounted on the axle 220 of the movable wheel 211, and a chain 218 that drives the driving sprocket 217 and the driven sprocket 219. The driven sprocket 219 is connected to the movable wheel 211, and the driven sprocket 219 drives the movable wheel 211 to rotate.

[0075] In this embodiment, during specific implementation, the mobile motor 25 and the third reducer 26 operate, driving the drive sprocket 217 to rotate. The rotation of the drive sprocket 217 drives the mobile wheel 211 to rotate around the axle 220 via the chain 218 and the driven sprocket 219. The mobile wheel 211 and the driven sprocket 219 are mounted on the axle 220 via bearings.

[0076] In this embodiment, the transition sleeve 27 includes an annular body 271 and a straight cylindrical part 272. The outer diameter of the annular body 271 is larger than the outer diameter of the straight cylindrical part 272. An inner bearing for the vertical shaft 293 to be rotatably mounted is provided inside the annular body 271. The vertical shaft 293 extends into the straight cylindrical part 272. The inner diameters of the annular body 271 and the straight cylindrical part 272 are the same. The annular body 271 is provided with a lower ear 273, and the ring plate 221 is provided with an upper ear that cooperates with the lower ear 273. The steering cylinder 212 is installed between the lower ear 273 and the upper ear.

[0077] In this embodiment, during specific implementation, firstly, the transverse cylinder 23 is extended, and the inner sleeve 24 moves along the outer cylinder 22 until the outer mounting hole and the second inner mounting hole correspond. Then, the transverse cylinder 23 is extended to the correct position, and the mounting pins in the outer mounting hole and the second inner mounting hole are locked, thus locking the inner sleeve 24 and the outer cylinder 22. Then, the outrigger cylinder is extended and retracted, and the extension and retraction of the outrigger cylinder drives the inner outrigger cylinder 213 to rise and fall along the outer outrigger sleeve 21 until it is adjusted to the correct position. The operation of the mobile motor 25 drives the mobile wheel 211 to move through the third reducer 26 and the sprocket chain. When the mobile wheel 211 needs to turn, the steering cylinder 212 is operated to extend and retract. The extension and retraction of the steering cylinder 212 drives the vertical shaft 293 to rotate around the transition sleeve 27 through the conical extension plate 292. With the lower ring plate 291 connected to the wheel seat 28, the rotation of the wheel seat 28 drives the mobile wheel 211 to swing, thereby realizing the turning.

[0078] In this embodiment, the base plate 55 is U-shaped.

[0079] In this embodiment, when implemented, two connecting columns 43 are provided on the two transverse connecting rods 41, and the base plate 55 of the lifting adjustment mechanism is hinged to the connecting column 43.

[0080] A connecting plate 510 is provided between the two transverse connecting rods 41, and a vision camera 511 is installed on the connecting plate 510 for transverse positioning. A supplementary light plate 44 is provided between the bottoms of the two transverse connecting rods 41, and the supplementary light plate 44 has a through hole for the shooting surface of the visual camera 511 to pass through.

[0081] In this embodiment, a second rope displacement sensor 512 for measuring the displacement of the connecting seat 59 is also provided.

[0082] In this embodiment, during specific implementation, the lifting cylinder 52 extends and retracts, pushing the inner vertical sleeve 54 to rise and fall along the height direction of the outer vertical sleeve 51. Then, the two sets of upper linear slide rails 53 and the upper frame 6 are hinged together, thereby driving the lower frame to adjust.

[0083] In this embodiment, the upper frame 6 is provided with a first mounting position 61 for the upper slide rail 513 to be installed and connected, a second mounting position 62 for the connecting seat 59 to be installed and connected, and a third mounting position 63 for the inner end of the transverse oil cylinder 23 and the outer cylinder 22 to be installed and connected.

[0084] In this embodiment, the upper frame 6 is equipped with a control cabinet 81, a battery 82, an air compressor 83, and a hydraulic pump station 84. The battery 82 supplies power to each electrical component, the air compressor 83 supplies air to the vertical cylinder 110 and the horizontal cylinder 142, and the hydraulic pump station 84 supplies oil to each cylinder. The control cabinet 81 is equipped with a PLC controller to control each execution component.

[0085] like Figures 16 to 18 The method for fine-tuning the track slab in a CRTSⅢ type slab track is shown. The track slab 102 is located above the base plate 101. Two fine-tuning claws 104 are connected to both sides of the track slab 102. The vertical plates 1043 of the fine-tuning claws 104 are connected to both sides of the track slab 102 by bolts. The base 1046 of the fine-tuning claws 104 is supported on the base plate 101. A pressure bar 105 is installed on the track slab 102. The method includes the following steps: Step 1: Fine-tuning the hoisting and movement of the equipment: Step 101: Hoist the fine-tuning equipment onto the base plate 101 so that the moving wheel 211 in the walking and steering device is in contact with the base plate; Step 102: The fine-tuning device is moved by the rolling of the moving wheel 211 in the walking and steering device until the fine-tuning device moves above the track plate 102 and the four fine-tuning mechanisms 1 approach the four fine-tuning claws 104 respectively. Step 2: Adjusting the posture of the lower frame: The attitude adjustment mechanism in the fine-tuning equipment drives the adjustment of the lower frame body so that the horizontal frame 4 and the track plate 102 in the lower frame body are arranged in parallel vertically. Step 3: The fine-tuning mechanism adjusts the track plate using the fine-tuning claws. The vertical fastening mechanism and the horizontal fastening mechanism 120 in the fine adjustment mechanism 1 are aligned with the vertical lead screw 1041 and the horizontal lead screw 1044 on the fine adjustment claw 104, respectively, and the elevation and center line of the track plate 102 are adjusted. Step 4: Adjusting the pressure bar.

[0086] In this embodiment, step two is as follows: Step 201: When the fine-tuning equipment is located above the track plate 102 to be adjusted, the adjustment legs are raised and lowered by the support legs cylinders in the steering support legs 2 and the walking support legs 3. The raising and lowering of the adjustment legs will drive the upper frame 6 and the lower frame to rise and fall until the distance between the bottom surface of the transverse frame 4 in the lower frame and the top surface of the track plate 102 meets the design requirements. Step 202: With the horizontal connecting rod 41 and the double-rod hydraulic cylinder 57 horizontally arranged, the extension and retraction of one lifting cylinder 52 is greater than that of the other lifting cylinder 52. With the base plate 55 and connecting column 43 in one of the lifting adjustment mechanisms hinged, and the base plate 55 and horizontal connecting rod 41 in the other lifting adjustment mechanism slidably connected through the lower linear slide rail 56, the lower frame body swings around the connecting column 43. With the lower slider and transition plate 514 in the lower linear slide rail 56 hinged to the two vertical sides of the base plate 55 in the other lifting adjustment mechanism, the lower slide rail in the lower linear slide rail 56 slides and swings with the lower frame body in the lower slider in the lower linear slide rail 56 until the horizontal frame 4 and the track plate 102 in the lower frame body are arranged in parallel vertically. Step 3, the specific process is as follows: Step 301: The front and rear moving motor 11 works, driving the front and rear lead screws 13 to rotate through the first reducer 12 and belt drive components. With the screw nut 14 and the front and rear lead screws 13 threadedly connected, the screw nut 14 moves along the length direction of the front and rear lead screws 13. Then, the screw nut 14 drives the fine adjustment mechanism 1 to move back and forth through the L-shaped mounting plate 113 until the screw sleeve 112 and the vertical lead screw 1041 are coaxially arranged. The upper part of the transverse seat 140 and the lower part of the turning plate 130 are hinged by the hinge shaft 141. The electric push rod 132 extends and retracts, causing the transverse seat 140 to swing around the hinge shaft 141, thereby causing the movable seat 150, the transverse moving mechanism and the transverse fastening mechanism 120 to swing, so that the center of the transverse fastening mechanism 120 and the transverse lead screw 1044 are coaxially arranged. Step 302: The vertical moving mechanism drives the screwing sleeve 112 to move up and down until the screwing sleeve 112 is fitted onto the vertical lead screw 1041. The lateral moving mechanism drives the screwing sleeve 112 in the lateral fastening mechanism 120 to move left and right until the screwing sleeve 112 in the lateral fastening mechanism 120 is sleeved on the lateral lead screw 1044. Step 303: When the fastening motor 15 is working, the screw sleeve 112 in the transverse fastening mechanism 120 drives the transverse screw 1044 to rotate, and the transverse screw nut 1045 on the transverse screw 1044 drives the track plate 102 to move laterally. When the fastening motor 15 operates, the vertical screw 1041 is turned by the screw sleeve 112 in the vertical fastening mechanism. The vertical screw nut 1042 on the vertical screw 1041 then moves the track plate 102 up and down until the elevation and centerline meet the design requirements.

[0087] In this embodiment, the pressure bar 105 can be implemented with reference to the structure of a multifunctional pressure bar for track slabs in patent CN120083098A. The pressure bar 105 limits the track slab 102 to prevent it from floating up when concrete is poured at the bottom of the track slab 102.

[0088] In this embodiment, during specific implementation, a template 103 is erected around the track slab 102 to facilitate the pouring of concrete.

[0089] In this embodiment, the cylinder body of the double-rod hydraulic cylinder 57 is provided with a connecting seat 59, which is connected to the interior of the upper frame 6. The two sets of upper linear slide rails 53 on the outer vertical sleeve 51 are also connected to the upper frame 6. This is to ensure that the upper frame 6 is in a horizontal state, i.e., the cylinder body of the double-rod hydraulic cylinder 57 is stationary, and the piston rod of the double-rod hydraulic cylinder 57 extends and retracts to drive the lower frame to move laterally. The lower frame is also adjusted relative to the bottom of the upper frame 6 through two lifting adjustment mechanisms, thereby realizing the lateral swing adjustment of the lower frame. The center of the lower frame coincides with the center projection of the track plate 102 under different ultra-high working conditions.

[0090] In summary, the present invention is reasonably designed. By using a fine-tuning mechanism to operate the fine-tuning claw, the track slab can be raised, lowered, and moved laterally. This allows for rapid adjustment of the track slab's elevation and centerline, saving manpower and resources, and improving construction efficiency. Furthermore, the fine-tuning mechanism can swing to adapt to the centering adjustment of the transverse lead screw in the fine-tuning claw under different ultra-high working conditions.

[0091] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A CRTSⅢ type slab track slab fine-tuning device, characterized in that: It includes an upper frame (6), a lower frame, a posture adjustment mechanism (5) set between the upper frame (6) and the lower frame, two sets of walking and steering devices symmetrically set on the left and right sides of the upper frame (6), a fine adjustment mechanism (1) set at the four corners of the lower frame, and four sets of turning mechanism assemblies arranged next to the fine adjustment mechanism (1). The two sets of walking and steering devices have the same structure and both include a steering walking support leg (2) and a walking support leg (3). Each set of the screwing mechanism assembly includes two screwing mechanisms (9) arranged on both sides of the fine adjustment mechanism (1), so the total number of screwing mechanisms (9) is eight; The attitude adjustment mechanism (5) drives the lower frame to swing; The fine-tuning mechanism (1) includes a front-to-back moving mechanism, an L-shaped mounting plate (113) disposed on the front-to-back moving mechanism, a vertical moving mechanism disposed on the L-shaped mounting plate (113), a mounting base (111) disposed on the vertical moving mechanism, and a vertical fastening mechanism disposed on the mounting base (111), as well as a turning plate (130) disposed at the bottom of the L-shaped mounting plate (113), a swinging mechanism disposed on the turning plate (130), a lateral moving mechanism disposed on the swinging mechanism, and a lateral fastening mechanism (120) disposed on the lateral moving mechanism.

2. The track slab fine-tuning device for CRTSⅢ type slab track as described in claim 1, characterized in that: The lower frame includes two symmetrically arranged transverse frames (4) and longitudinal frame columns (7) at the ends of the two symmetrically arranged transverse frames (4). The transverse frame (4) includes two transverse connecting rods (41) and a mounting frame (42) connected to both ends of the two transverse connecting rods (41). The front and rear movement mechanism of the fine adjustment mechanism (1) is set in the mounting frame (42). The longitudinal frame column (7) includes two symmetrically arranged outer longitudinal frame sleeves and an inner frame column (73) passing between the two outer longitudinal frame sleeves. The outer longitudinal frame sleeve includes an outer longitudinal frame rod (71) and an outer frame sleeve part (72) integrally formed with the outer longitudinal frame rod (71). The top of the outer frame sleeve part (72) is provided with an upper waist-shaped hole (75). The inner frame column (73) is provided with a limiting rod (74). The limiting rod (74) extends out of the upper waist-shaped hole (75) and can slide along the upper waist-shaped hole (75). The L-shaped mounting plate (113) is mounted on the outer longitudinal frame rod (71) via a support column (121).

3. The track slab fine-tuning device for CRTSⅢ type slab track as described in claim 1, characterized in that: The screwing mechanism (9) includes a power housing (93), a motor reducer power component disposed in the power housing (93), and an outer screwing sleeve component (94) that is connected to the motor reducer power component for transmission, as well as an open U-shaped component (95) disposed at the bottom of the power housing (93) and located on one side of the outer screwing sleeve component (94). A longitudinal electric push rod (91) is provided on the longitudinal frame column (7) in the lower frame body. The telescopic end of the longitudinal electric push rod (91) is connected to the upper extension plate (96) on the power housing (93). A bottom linear slide rail (92) is provided between the top of the power housing (93) and the top of the longitudinal frame column (7).

4. The track slab fine-tuning device for CRTSⅢ type slab track as described in claim 1, characterized in that: The forward and backward moving mechanism includes a forward and backward moving motor (11), a first reducer (12) that is connected to the forward and backward moving motor (11), a front and rear lead screw (13) that is connected to the first reducer (12) through a belt drive component, and a lead screw seat (14) that is threaded on the front and rear lead screw (13). The lead screw seat (14) is installed on the vertical side wall of the L-shaped mounting plate (113). The vertical fastening mechanism includes a fastening motor (15), a second reducer (19), and a belt drive component that connects the fastening motor (15) and the second reducer (19). The output shaft of the second reducer (19) is connected to a screwing sleeve (112), and the second reducer (19) is mounted on the vertical moving mechanism. The swing mechanism includes an upper mounting base (131) mounted on a turning plate (130) and an electric push rod (132) mounted on the upper mounting base (131). The telescopic end of the electric push rod (132) is connected to a transverse seat (140). The upper part of the transverse seat (140) and the lower part of the turning plate (130) are hinged together by a hinge shaft (141). The transverse moving mechanism connects the transverse seat (140) and the moving seat (150). The transverse fastening mechanism (120) is mounted on the moving seat (150).

5. The track slab fine-tuning device for CRTSⅢ type slab track as described in claim 1, characterized in that: Both the steering outrigger (2) and the walking outrigger (3) include an adjustable outrigger, a lateral telescopic mechanism, and a wheel seat (28) located at the bottom of the adjustable outrigger, as well as a movable wheel (211) located within the wheel seat (28). The lateral telescopic mechanism includes a lateral cylinder (23) and lateral telescopic components on the upper and lower sides of two symmetrically arranged lateral cylinders (23). The lateral telescopic component includes an outer cylinder (22) connected to the upper frame (6) and an inner sleeve (24) connected to the adjustable outrigger. The inner sleeve (24) can slide along the outer cylinder (22). A roller (210) is provided on the lower part of the outer side wall of the wheel seat (28). The steering outrigger (2) is also equipped with a steering component.

6. The track slab fine-tuning device for CRTSⅢ type slab track as described in claim 5, characterized in that: The adjustable outrigger includes an outer outrigger sleeve (21), an inner outrigger sleeve (213) slidably sleeved in the outer outrigger sleeve (21), and an outrigger cylinder disposed inside the inner outrigger sleeve (213). The top of the inner outrigger sleeve (213) is lower than the top of the outer outrigger sleeve (21). The fixed end of the outrigger cylinder is disposed inside the top of the outer outrigger sleeve (21). The telescopic end of the outrigger cylinder is installed inside the inner outrigger sleeve (213). The protruding end of the inner sleeve (24) is connected to the outer outrigger sleeve (21). The wheel seat (28) is provided with a moving drive mechanism, which includes a moving motor (25) and a third reducer (26). The third reducer (26) and the moving wheel (211) are connected by a sprocket and chain drive.

7. A track slab fine-tuning device for CRTSⅢ type slab track as described in claim 6, characterized in that: The bottom of the inner leg cylinder (213) of the walking outrigger (3) is directly connected to the wheel seat (28); The steering component is located between the bottom of the inner outrigger cylinder (213) and the wheel seat (28) in the steering outrigger (2). The steering component is a steering cylinder (212). The bottom of the inner outrigger cylinder (213) is provided with a ring plate (221). The ring plate (221) is installed on the transition sleeve (27). The top of the wheel seat (28) is provided with a rotating plate (29). The steering cylinder (212) is installed next to the transition sleeve (27). The telescopic end of the steering cylinder (212) is hinged to the top of the vertical rod fixed on the rotating plate (29). The rotating plate (29) includes a lower ring plate (291), a tapered extension plate (292) disposed on the outer side wall of the lower ring plate (291), and a vertical shaft (293) disposed at the center of the lower ring plate (291). The vertical shaft (293) can be rotatably inserted in the transition sleeve (27). The lower ring plate (291) is connected to the wheel seat (28).

8. A track slab fine-tuning device for CRTSⅢ type slab track as described in claim 1, characterized in that: The attitude adjustment mechanism (5) includes a lateral adjustment mechanism and two lifting adjustment mechanisms symmetrically arranged at both ends of the lateral adjustment mechanism. Each of the two lifting adjustment mechanisms includes a base plate (55), an inner vertical sleeve (54) mounted on the base plate (55), an outer vertical sleeve (51) slidably sleeved outside the inner vertical sleeve (54), and a lifting cylinder (52) connecting the upper part of the base plate (55) and the outer vertical sleeve (51). The outer vertical sleeve (51) is provided with two sets of upper linear slide rails (53). The upper slide rail (513) of the upper linear slide rail (53) is mounted on the upper frame (6) to be connected to the upper frame (6). The upper slider of the upper linear slide rail (53) is connected to the outer vertical sleeve (51). The upper slider and the upper slide rail (513) slide together. The lateral adjustment mechanism includes a double-rod hydraulic cylinder (57) disposed between two outer vertical sleeves (51) and two lateral connecting rods (41) symmetrically arranged about the double-rod hydraulic cylinder (57). The base plate (55) of one of the lifting adjustment mechanisms is hinged to the connecting column (43) of the lower frame body. The base plate (55) of the other lifting adjustment mechanism is slidably and hinged to the lateral connecting rod (41) of the lower frame body through the lower linear slide rail (56). The lower linear slide rail (56) is mounted on the transverse connecting rod (41) of the lower frame body. A transition plate (514) is provided on the lower slide of the lower linear slide rail (56). The transition plate (514) and the two vertical sides of the base plate (55) in the other lifting adjustment mechanism are hinged by a hinge shaft. The cylinder body of the double-rod hydraulic cylinder (57) is provided with a connecting seat (59), which is connected to the interior of the upper frame (6).

9. A method for adjusting a track slab using the device as described in claim 4, characterized in that, The track plate (102) is located above the base plate (101). Two fine adjustment claws (104) are connected to both sides of the track plate (102). The vertical plate (1043) of the fine adjustment claw (104) is connected to both sides of the track plate (102) by bolts. The base (1046) of the fine adjustment claw (104) is supported on the base plate (101). A pressure bar (105) is installed on the track plate (102). The method includes the following steps: Step 1: Fine-tuning the hoisting and movement of the equipment: Step 101: Hoist the fine-tuning equipment onto the base plate (101) so that the moving wheel (211) in the walking and steering device fits against the base plate; Step 102: The fine-tuning device is moved by the rolling of the moving wheel (211) in the walking and steering device until the fine-tuning device moves above the track plate (102) and the four fine-tuning mechanisms (1) approach the four fine-tuning claws (104) respectively. Step 2: Adjusting the posture of the lower frame: The attitude adjustment mechanism in the fine-tuning equipment drives the adjustment of the lower frame body so that the horizontal frame (4) and the track plate (102) in the lower frame body are arranged in parallel vertically. Step 3: The fine-tuning mechanism adjusts the track plate using the fine-tuning claws. The vertical fastening mechanism and the horizontal fastening mechanism (120) in the fine adjustment mechanism (1) are aligned with the vertical lead screw (1041) and the horizontal lead screw (1044) on the fine adjustment claw (104) respectively, and the elevation and center line of the track plate (102) are adjusted. Step 4: Adjusting the pressure bar.

10. The method according to claim 9, characterized in that: Step two, the specific process is as follows: Step 201: When the fine-tuning equipment is above the track plate (102) to be adjusted, the adjustment support leg is raised and lowered by the support leg cylinder in the steering support leg (2) and the travel support leg (3). The raising and lowering of the adjustment support leg will drive the upper frame (6) and the lower frame to rise and fall until the distance between the bottom surface of the transverse frame (4) in the lower frame and the top surface of the track plate (102) meets the design requirements. Step 202: With the horizontal connecting rod (41) and the double-rod hydraulic cylinder (57) arranged horizontally, the extension and retraction of one lifting cylinder (52) is greater than that of the other lifting cylinder (52). With the base plate (55) and connecting column (43) in one of the lifting adjustment mechanisms hinged, and the base plate (55) and horizontal connecting rod (41) in the other lifting adjustment mechanism slidingly connected through the lower linear slide rail (56), the lower frame body swings around the connecting column (43), and the lower slider and transition plate (514) in the lower linear slide rail (56) are hinged to the two vertical sides of the base plate (55) in the other lifting adjustment mechanism. The lower slide rail in the lower linear slide rail (56) slides and swings with the lower frame body in the lower slider in the lower linear slide rail (56) until the horizontal frame (4) and track plate (102) in the lower frame body are arranged in parallel vertically. Step 3, the specific process is as follows: Step 301: The front and rear moving motor (11) works, and drives the front and rear lead screws (13) to rotate through the first reducer (12) and belt drive components. Under the threaded connection between the lead screw seat (14) and the front and rear lead screws (13), the lead screw seat (14) moves along the length direction of the front and rear lead screws (13). Then the lead screw seat (14) drives the fine adjustment mechanism (1) to move back and forth through the L-shaped mounting plate (113) until the screw sleeve (112) and the vertical lead screw (1041) are coaxially arranged. The upper part of the transverse seat (140) and the lower part of the turning plate (130) are hinged by a hinge shaft (141). The electric push rod (132) extends and retracts, causing the transverse seat (140) to swing around the hinge shaft (141), thereby causing the moving seat (150), the transverse moving mechanism and the transverse fastening mechanism (120) to swing, so that the center of the transverse fastening mechanism (120) and the transverse lead screw (1044) are arranged coaxially. Step 302: Drive the screwing sleeve (112) up and down through the vertical moving mechanism until the screwing sleeve (112) is sleeved on the vertical lead screw (1041); The lateral moving mechanism drives the screwing sleeve (112) in the lateral fastening mechanism (120) to move left and right until the screwing sleeve (112) in the lateral fastening mechanism (120) is sleeved on the lateral screw (1044); Step 303: By fastening the motor (15) to work, the screw sleeve (112) in the transverse fastening mechanism (120) drives the transverse screw (1044) to be turned, and the transverse screw nut (1045) on the transverse screw (1044) drives the track plate (102) to move laterally. By fastening the motor (15) to work, the vertical screw (1041) is driven to rotate by the screw sleeve (112) in the vertical fastening mechanism. Then the vertical screw nut (1042) on the vertical screw (1041) drives the track plate (102) to move up and down until the elevation and center line meet the design requirements.

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