A double-block sleeper precision positioning and laying device for railway track construction and a construction process thereof

Abstract

This invention relates to the field of railway track laying device technology, and in particular to a double-block sleeper precision positioning and laying device and its construction process for railway track construction. The device includes a remote-controlled vehicle, a lifting drive assembly fixedly connected to the top of the vehicle, a horizontal frame assembly installed inside the lifting drive assembly, a vertical frame assembly fixedly connected to the lower end of the horizontal frame assembly, a support assembly installed inside the vertical frame assembly, a telescopic drive assembly fixedly connected to the lower end of the support assembly, a lateral positioning assembly installed inside the vertical frame assembly, and a push plate. The top of the push plate is fixedly connected to a top block and an opening plate, and a fixed shaft seat is fixedly connected to the side of the push plate near the telescopic drive assembly. In this invention, during the adjustment of the position of the double-block sleeper body, the device effectively avoids damage to the protective layer of the sleeper's reinforcing steel frame caused by friction, ensuring the overall structural strength and durability of the sleeper, and improving the pass rate of the laid sleeper.

Description

Technical Field

[0001] This invention relates to the field of railway track laying equipment technology, specifically to a double-block sleeper precision positioning and laying device for railway track construction and its construction process. Background Technology

[0002] The double-block sleeper, laid on railway tracks, is an important component in railway track construction. It consists of two independent concrete blocks connected by a special method (such as steel reinforcement) to form an integral structure. This type of sleeper has high strength and stability, good durability and fatigue resistance, and is suitable for various railway line environments, including high-speed railways and heavy-haul railways. It plays a key role in ensuring the stable operation of railway tracks and the safe and smooth travel of trains. The steel reinforcement frame of the double-block sleeper is usually equipped with a protective layer. According to relevant specifications, the thickness of the protective layer of steel reinforcement in reinforced concrete structures should meet the design requirements. The purpose is to prevent steel corrosion and ensure the durability and safety of the structure. In some railway projects, the thickness of the protective layer of the bottom layer of steel reinforcement is required to be no less than 35mm.

[0003] In the construction of double-block sleepers, the laying device precisely controls the spacing, position, and levelness of the sleepers to ensure that they are laid strictly in accordance with the design requirements, thereby ensuring the accuracy of the track geometry and directly improving the smoothness and safety of train operation. These sleepers are laid on the concrete track bed of ballastless track to support the rails and maintain the geometry and stability of the track. With the help of the laying device, manual laying errors can be effectively avoided, ensuring track smoothness and providing a solid foundation for the safe and stable operation of trains.

[0004] Laying double-block sleepers on viaducts presents numerous complexities in the construction environment, such as narrow bridge deck space, limited work area, numerous surrounding facilities, and extremely high requirements for construction precision and safety. These characteristics significantly limit the operating range and flexibility of general-purpose construction machinery such as excavators, making it difficult to meet the special needs of viaduct construction. Therefore, to ensure the efficiency, precision, and safety of construction, specially designed laying equipment is usually required. This specialized equipment is better adapted to the construction conditions of viaducts, possessing higher operational precision, more flexible operating capabilities, and more comprehensive safety measures, thereby effectively improving construction quality and efficiency and reducing construction risks.

[0005] For the installation of double-block sleepers on viaducts, precise adjustments to the sleeper position are typically required during installation to ensure accuracy. However, due to the steel reinforcement frame at the bottom of the sleeper, this frame can easily come into contact with and rub against the ground or other external objects during position adjustments. This friction can cause wear to the protective layer of the steel reinforcement frame, increasing the risk of steel corrosion and potentially negatively impacting subsequent project acceptance. Furthermore, damage to the steel reinforcement protective layer can weaken the overall structural strength of the sleeper, thereby affecting the long-term stability and service life of the track. Therefore, this paper proposes a precise positioning and laying device for double-block sleepers in railway track construction, along with its construction process, to address these issues. Summary of the Invention

[0006] The purpose of this invention is to provide a double-block sleeper precision positioning and laying device and its construction process for railway track construction, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A double-block sleeper precision positioning and laying device for railway track construction includes a remote-controlled vehicle. A lifting drive assembly is fixedly connected to the top of the remote-controlled vehicle. A horizontal frame assembly is installed inside the lifting drive assembly. A vertical frame assembly is fixedly connected to the lower end of the horizontal frame assembly. A support assembly is installed inside the vertical frame assembly. A telescopic drive assembly is fixedly connected to the lower end of the support assembly. A lateral positioning assembly is installed inside the vertical frame assembly. The support assembly includes a push plate. A top block and an opening plate are fixedly connected to the top of the push plate. A fixed shaft seat is fixedly connected to the side of the push plate near the telescopic drive assembly. The inner side of the fixed shaft seat is connected to the outer side of an internal shaft via a bearing. The internal shaft is fixedly connected to the inner side of the support plate via a rotatable connection. One end of the support plate has a mounting groove. The telescopic drive assembly includes a first inner shaft seat. An external connecting hole post is rotatably connected to one end of the first inner shaft seat, and a cylinder assembly is fixedly connected to it. A piston rod assembly is slidably connected to the inner side of the cylinder assembly. A second inner shaft seat is rotatably connected to the outer side of the piston rod assembly. A second rubber sealing ring is fixedly connected to the outer side of the piston rod assembly. A permanent magnet block is fixedly connected to the end of the piston rod assembly near the second rubber sealing ring. A flow limiting assembly is fixedly connected to the outer side of the cylinder assembly, and a sealing airbag ball is fixedly connected to the outer side of the flow limiting assembly.

[0009] As a further optimization of the present invention, the lifting drive assembly includes an arch frame with an inlay groove on its inner side. A first servo motor is fixedly connected to the top of the arch frame, and a threaded rod is fixedly connected to the end of the main shaft of the first servo motor. A guide column is fixedly connected to the side of the arch frame near the upper end, and an integrated controller is fixedly connected to the right side of the arch frame. The upper end of the threaded rod is rotatably connected to the inner side of the arch frame, and the lower end of the threaded rod is rotatably connected to the inner side of the remote control vehicle. The bottom end of the arch frame and the bottom end of the guide column are both fixedly connected to the top of the remote control vehicle.

[0010] As a further optimization of the present invention, the crossbeam assembly includes a crossbeam plate, with side seats fixedly connected to both the left and right sides of the crossbeam plate. A frame is fixedly connected to the bottom end of the crossbeam plate, and a mounting plate is fixedly connected to the bottom end of the frame. The right side of the mounting plate is fixedly connected to the housing of the second servo motor. A shaft hole is opened on the inner side of the mounting plate, and a double-threaded rotating rod is rotatably connected to the inner side of the mounting plate. The right side of the double-threaded rotating rod is fixedly connected to the end of the main shaft of the second servo motor. A guide column is fixedly connected to one side of the mounting plate. An electric telescopic rod is fixedly connected to the bottom end of the frame through a protrusion. A screw hole and a straight hole are opened on the inner side of the crossbeam plate. The inner side of the crossbeam plate is helically connected to the outer side of the threaded rod through the screw hole. The inner side of the crossbeam plate is slidably connected to the outer side of the guide column through the straight hole. The outer side of the side seat slides inside the mounting groove.

[0011] As a further optimization of the present invention, the vertical frame assembly includes an extended base plate, a through groove is formed on the inner side of the extended base plate, an internal rod is fixedly connected to the inner side of the through groove, a fixed plate frame is fixedly connected to the top of the extended base plate, a guide channel is formed on the inner side of the fixed plate frame, the top of the fixed plate frame is fixedly connected to the bottom of the frame, a top block is embedded in the through groove, and the outer side of the internal rod is slidably connected to the inner side of the top block.

[0012] As a further optimization of the present invention, the following features are provided: a groove is provided at one end of the support plate near the mounting groove; a shaft rotation hole is provided at both the front and rear ends of the mounting groove; the mounting groove is rotatably connected to the rotating roller column through the shaft rotation hole; a groove is provided on the inner side of the rotating roller column; the groove on the inner side of the rotating roller column is rotatably connected to the wheel axle of the roller through a bearing; one-third of the outer side of the rotating roller column protrudes outside the mounting groove; one-third of the outer side of the roller protrudes outside the rotating roller column; the outer side of the roller is in contact with the bottom end of the double-block sleeper body; a threaded hole and a sliding hole are provided on the inner side of the perforated plate; the threaded hole of the perforated plate is helically connected to the outer side of the double-threaded rotating rod; the sliding hole of the perforated plate is slidably connected to the outer side of the guide crossbar; a first inner shaft seat is fixed on the side of the push plate near the fixed shaft seat; and a second inner shaft seat is fixed at the bottom end of the support plate.

[0013] As a further optimization of the present invention, the cylinder assembly includes a cylinder shell, the inner side of which is provided with an air inlet, a cylindrical end hole, a fixing groove and an oil reservoir. An electromagnet, a first spring and a baffle are fixedly connected to the inner side of the oil reservoir. The air inlet is located at the end away from the fixing groove, and the electromagnet and the first spring are located at the end close to the air inlet. One end of the first spring is fixedly connected to the piston rod assembly. A first rubber sealing ring is fixedly connected to the inner side of the cylindrical end hole. The inner side of the first rubber sealing ring is in contact with the outer side of the piston rod assembly, and the inner side of the oil reservoir is in contact with the outer side of the second rubber sealing ring.

[0014] As a further optimization of the present invention, the flow limiting component includes a cylindrical shell, a first annular plate and a second annular plate are fixedly connected to the inner side of the cylindrical shell, and mounting holes are provided on the inner sides of both the first annular plate and the second annular plate. A solenoid valve is fixedly connected to the inner side of the first annular plate, and a silicone duckbill valve is fixedly connected to the inner side of the second annular plate. A flow-slowing hole is provided on the inner side of the silicone duckbill valve. An assembly groove is provided on the inner side of the cylindrical shell, and the assembly groove communicates with the flow-slowing hole. The cylindrical shell is fixedly connected to the cylinder shell, and the outer side of the cylindrical shell is fixedly connected to the inner side of the sealing airbag ball.

[0015] As a further optimization of the present invention, the lateral positioning component includes an inner hole slide plate, an extension rod is rotatably connected to the inner side of the inner hole slide plate via a bearing, a push column is fixedly connected to one side of the extension rod, a guide rod is fixedly connected to one end of the inner hole slide plate, a second spring is fixedly connected to one end of the guide rod near the inner hole connecting plate, and the inner hole connecting plate is slidably connected to the outer side of the guide rod.

[0016] As a further optimization of the present invention, the inner hole sliding plate is slidably connected to the inner side of the guide rail, the inner hole connecting plate is fixedly connected to the piston rod of the electric telescopic rod, and the outer side of the pushing column is attached to the upper end of the double-block sleeper body.

[0017] A construction process for a double-block sleeper precision positioning and laying device for railway track construction includes the following steps: First, during the loading and unloading process, the integrated controller of the equipment is in normal working condition and receives remote control signals. Based on these signals, it controls the actions of the remote control vehicle, the first servo motor, the electric telescopic rod, the electromagnet, and the solenoid valve. The remote control vehicle controls the overall displacement of the device, roughly aligning the space between the two supporting components with the double-block sleeper body. The first servo motor is then started, driving the threaded rod to rotate. The threaded rod drives the outer spirally connected horizontal frame plate to rise and fall, while the side seat slides within the embedded groove. This controls the raising and lowering of the horizontal frame plate and adjusts the vertical frame components. The heights of the support assembly, telescopic drive assembly, and lateral positioning assembly are determined. When the lateral positioning assembly enters the rail-bearing groove of the double-block sleeper body and its bottom end is not in contact with the sleeper, and the built-in shaft is located below the sleeper's rail-bearing platform, the first servo motor stops. The telescopic drive assembly extends to push the support plate to rotate. The support plate rotates around the built-in shaft, which is connected inside the fixed shaft seat. After the top of the roller contacts the bottom of the sleeper's rail-bearing platform, the sleeper's rail-bearing platform enters the groove of the support plate. The length of the telescopic drive assembly is fixed, and the angle of the support plate is fixed. The lifting drive assembly controls the horizontal frame plate to rise, utilizing the support plate for support and the lateral positioning assembly for limiting movement. The double-block sleeper body is raised. During unloading, the double-block sleeper body moves downward. After contacting the ground or the placement position, the telescopic drive component is controlled to retract, separating the support plate from the sleeper, completing the unloading operation. Step 2: After the double-block sleeper body is supported on the built-in shaft, the left and right directions are adjusted first. The second servo motor is started to drive the double-threaded rotating rod to rotate. The double-threaded rotating rod rotates inside the two fixed plates, driving the spirally connected perforated plate to move. The perforated plate drives the entire support component to move. At the same time, the perforated plate slides and is limited outside the guide column. The top block slides inside the through groove. The top block connects to the built-in shaft through the through hole. The rod slides and connects, and the two support plates move closer to the sleeper support platform, pushing the sleeper support platform to complete the left and right adjustment. Then, the front and back adjustment is carried out. The electric telescopic rod is activated to push the inner hole connecting plate to move. The inner hole connecting plate drives the entire lateral positioning component to move. After the pushing column is in contact with the protrusion of the sleeper support platform, the pushing column drives the guide rod to move through the rotating inner hole sliding plate. After the two electric telescopic rods at the front or rear end move a certain distance, the pushing column pushes the sleeper to adjust its front and back position, controlling the sleeper in the designated position. Finally, the precise positioning and laying of the sleeper is completed by the displacement of the remote control vehicle and the lifting and lowering of the lifting drive component.Step 3: When feeding the double-block sleeper body, open the solenoid valve to control the extension drive assembly. The first spring force pushes the piston rod assembly to move out of the cylinder housing. The oil reservoir is filled with hydraulic oil. When the second rubber sealing ring moves with the piston rod assembly, the hydraulic oil is squeezed and enters the assembly groove through the solenoid valve. Then, it enters the silicone duckbill valve and the sealing airbag ball through the slow flow hole. The sealing airbag ball expands under the hydraulic oil pressure. The baffle limits the movement distance of the piston rod assembly. The perforated plate contacts the sleeper support platform. After closing the solenoid valve, the extension and retraction mechanism is activated. When driving the assembly, the solenoid valve is opened and the electromagnet is energized. The electromagnet's magnetic attraction drives the permanent magnet block, which in turn drives the piston rod assembly to compress the first spring. Hydraulic oil flows back into the oil storage tank through the silicone duckbill valve and the solenoid valve. Step four: During the adjustment of the double-block sleeper body position, the bottom end of the sleeper contacts the outer side of multiple perforated plates. The rotation of the rotating roller column is controlled by the friction with the rollers. The rotating roller column is connected inside the mounting groove. When the double-block sleeper body moves back and forth, the rollers are driven to rotate by friction. The rollers are connected inside the rotating roller column.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, through the setting of the lifting drive component and the supporting component, the device significantly reduces the possibility of friction between the sleeper steel frame and external objects during the loading and unloading operation of the double-block sleeper body, effectively avoiding the problem of damage to the protective layer of the sleeper steel frame due to friction, thereby ensuring the overall structural strength and durability of the sleeper, improving the qualification rate after sleeper laying, and providing a basis for the subsequent precise adjustment of the sleeper position, thus improving construction quality and efficiency; 2. In the present invention, through the setting of the crossbeam component, the supporting component and the lateral positioning component, the sleeper can be precisely positioned during the position adjustment process of the double-block sleeper body, ensuring that it is accurately in the designated position, which ensures the sleeper The laying precision meets the design standards, thus significantly improving construction quality and effectively increasing construction efficiency; 3. In this invention, the telescopic drive component effectively prevents the sleeper support platform from being broken or displaced due to improper fixing force or excessive speed, reducing damage to the sleeper during the loading process, improving the integrity and safety of the sleeper, and also reducing the risks during construction, ensuring the smooth progress of construction; 4. In this invention, the rotating roller and rollers effectively reduce damage to the sleeper during movement caused by excessive local pressure or friction, protecting the sleeper support platform, further improving the service life of the sleeper and construction quality, and ensuring the integrity and safety of the sleeper during the laying process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the remote control car structure of the present invention; Figure 3This is a schematic diagram of the lifting drive component structure of the present invention; Figure 4 This is a side view of the double-block sleeper body of the present invention. Figure 5 This is a schematic diagram of the crossbeam structure of the present invention; Figure 6 This is a schematic diagram of the framework structure of the present invention; Figure 7 This is a schematic diagram of the extended base plate structure of the present invention; Figure 8 This is a schematic diagram of the lateral positioning component structure of the present invention; Figure 9 This is an exploded view of the lateral positioning component of the present invention; Figure 10 This is a schematic diagram of the support component structure of the present invention; Figure 11 This is a schematic diagram of the push plate structure of the present invention; Figure 12 This is a schematic diagram of the support plate structure of the present invention; Figure 13 For the present invention Figure 12 A schematic diagram of the structure at point A; Figure 14 This is a cross-sectional structural diagram of the telescopic drive assembly of the present invention; Figure 15 This is an exploded structural diagram of the telescopic drive assembly of the present invention; Figure 16 This is a schematic diagram of the cylinder assembly structure of the present invention; Figure 17 This is a schematic diagram of the current limiting component structure of the present invention.

[0020] In the diagram: 1. Remote control car; 2. Lifting drive assembly; 21. Arch frame; 22. Embedded groove; 23. First servo motor; 24. Threaded rod; 25. Guide column; 26. Integrated controller; 3. Horizontal frame assembly; 31. Horizontal frame plate; 32. Side seat; 33. Frame; 34. Second servo motor; 35. Double threaded rotating rod; 36. Guide cross column; 37. Electric telescopic rod; 38. Fixing plate; 4. Vertical frame assembly; 41. Extended base plate; 42. Through groove; 43. Built-in rod; 44. Fixed plate frame; 45. Guide channel; 5. Support assembly; 51. Push plate; 52. Top block; 53. Fixed shaft seat; 54. Built-in shaft; 55. Support plate; 56. Placement slot; 57. Rotating roller column; 58. Perforated plate; 59. Roller; 6. Telescopic drive assembly; 61. First inner shaft seat; 62. Outer 63. Connecting post; 64. Cylinder assembly; 65. Cylinder shell; 66. Electromagnet; 67. Air inlet; 68. First spring; 69. Cylindrical end hole; 60. First rubber sealing ring; 61. Baffle; 62. Fixing groove; 633. Oil reservoir; 64. Piston rod assembly; 65. Second inner shaft seat; 66. Permanent magnet block; 67. Second rubber sealing ring; 68. Flow limiting assembly; 69. Cylinder shell; 60. First annular plate; 61. Solenoid valve; 62. Assembly groove; 63. Second annular plate; 64. Silicone duckbill valve; 65. Flow-regulating hole; 66. Sealing airbag ball; 7. Double-block sleeper body; 87. Lateral positioning assembly; 88. Inner hole sliding plate; 88. Extension rotating rod; 89. Push post; 80. Guide built-in rod; 81. Second spring; 82. Inner hole connecting plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] Please see Figures 1-17 The present invention provides a technical solution:

[0024] A double-block sleeper precision positioning and laying device for railway track construction and its construction process include a remote-controlled vehicle 1. A lifting drive assembly 2 is fixedly connected to the top of the remote-controlled vehicle 1. A horizontal frame assembly 3 is installed inside the lifting drive assembly 2. A vertical frame assembly 4 is fixedly connected to the lower end of the horizontal frame assembly 3. A support assembly 5 is installed inside the vertical frame assembly 4. A telescopic drive assembly 6 is fixedly connected to the lower end of the support assembly 5. A transverse positioning assembly 8 is installed inside the vertical frame assembly 4. The support assembly 5 includes a push plate 51. A top block 52 and an opening plate 58 are fixedly connected to the top of the push plate 51. A fixed shaft seat 53 is fixedly connected to the side of the push plate 51 near the telescopic drive assembly 6. The inner side of the fixed shaft seat 53 is rotatably connected to the outer side of an internal shaft rod 54 via a bearing. The internal shaft rod 54... The outer side is fixedly connected to the inner side of the support plate 55. The support plate 55 has a mounting groove 56 at one end. The telescopic drive assembly 6 includes a first inner shaft seat 61. An outer connecting post 62 is rotatably connected to the inner side of the first inner shaft seat 61. A cylinder assembly 63 is fixedly connected to the end of the outer connecting post 62 away from the first inner shaft seat 61. A piston rod assembly 64 is slidably connected to the inner side of the cylinder assembly 63. A second inner shaft seat 65 is rotatably connected to the outer side of the piston rod assembly 64. A second rubber sealing ring 67 is fixedly connected to the outer side of the piston rod assembly 64. A permanent magnet block 66 is fixedly connected to the end of the piston rod assembly 64 near the second rubber sealing ring 67. A flow limiting assembly 68 is fixedly connected to the outer side of the cylinder assembly 63. A sealing airbag ball 69 is fixedly connected to the outer side of the flow limiting assembly 68.

[0025] As a further implementation of this solution, the lifting drive assembly 2 includes an arch frame 21. An inset groove 22 is provided on the inner side of the arch frame 21. A first servo motor 23 is fixedly connected to the top of the arch frame 21. A threaded rod 24 is fixedly connected to the end of the main shaft of the first servo motor 23. A guide column 25 is fixedly connected to the side of the arch frame 21 near the upper end. An integrated controller 26 is fixedly connected to the right side of the arch frame 21. The upper end of the threaded rod 24 is rotatably connected to the inner side of the arch frame 21, and the lower end of the threaded rod 24 is rotatably connected to the inner side of the remote control vehicle 1. The bottom end of the arch frame 21 and the bottom end of the guide column 25 are both fixedly connected to the top of the remote control vehicle 1. Through the above settings, the horizontal frame assembly 3 can be controlled to realize the lifting action, providing stable limit and guidance for the lifting process, and ensuring the smoothness and accuracy of the lifting action.

[0026] As a further implementation of this solution, the crossbeam assembly 3 includes a crossbeam plate 31, with side seats 32 fixedly connected to both the left and right sides of the crossbeam plate 31. A frame 33 is fixedly connected to the bottom end of the crossbeam plate 31, and a mounting plate 38 is fixedly connected to the bottom end of the frame 33. The right side of the mounting plate 38 is fixedly connected to the housing of the second servo motor 34. A shaft hole is opened on the inner side of the mounting plate 38, and a double-threaded rotating rod 35 is rotatably connected to the inner side of the mounting plate 38. The right side of the double-threaded rotating rod 35 is fixedly connected to the end of the spindle of the second servo motor 34. A guide column 36 is fixedly connected to one side of the mounting plate 38, and the bottom end of the frame 33 is fixedly connected by a protrusion. The system includes an electric telescopic rod 37, a crossbeam plate 31 with screw holes and straight holes on its inner side, a crossbeam plate 31 with screw holes and a threaded rod 24 with screw holes on its inner side, a crossbeam plate 31 with straight holes on its inner side and a guide column 25 with slidable connections on its inner side, and a side seat 32 with its outer side sliding on its inner side in the mounting groove 22. With the above configuration, the second servo motor 34 can control the two corresponding support components 5 to move simultaneously, thereby providing a drive for the left and right position correction of the double-block sleeper body 7, thus achieving precise position adjustment of the sleeper, improving construction accuracy and quality. The electric telescopic rod 37 provides a drive for the movement of the lateral positioning component 8.

[0027] As a further implementation of this solution, the vertical frame assembly 4 includes an extended base plate 41, with a through groove 42 on the inner side of the extended base plate 41. An internal rod 43 is fixedly connected to the inner side of the through groove 42. A fixed plate frame 44 is fixedly connected to the top of the extended base plate 41. A guide channel 45 is provided on the inner side of the fixed plate frame 44. The top of the fixed plate frame 44 is fixedly connected to the bottom of the frame 33. A top block 52 is embedded in the through groove 42. The outer side of the internal rod 43 is slidably connected to the inner side of the top block 52. Through the above configuration, the vertical frame assembly 4 provides support for the transverse positioning assembly 8 and the support assembly 5, thereby enhancing the stability of the overall structure.

[0028] As a further implementation of this scheme, the support plate 55 has a groove at one end near the mounting groove 56. The mounting groove 56 has swivel holes at both its front and rear ends. The mounting groove 56 is rotatably connected to the rotating roller column 57 through these swivel holes. A groove is formed on the inner side of the rotating roller column 57, and this groove is rotatably connected to the axle of the roller 59 via a bearing. One-third of the outer side of the rotating roller column 57 protrudes from the outer side of the mounting groove 56, and one-third of the outer side of the roller 59 protrudes from the outer side of the rotating roller column 57. The outer side of the roller 59 is in contact with the bottom end of the double-block sleeper body 7. The perforated plate 58 has a threaded hole and a sliding hole on its inner side. The threaded hole of the perforated plate 58 is spirally connected to the outer side of the double threaded rotating rod 35, and the sliding hole of the perforated plate 58 is slidably connected to the outer side of the guide cross column 36. The first inner shaft seat 61 is fixed on the side of the pushing plate 51 near the fixed shaft seat 53, and the second inner shaft seat 65 is fixed at the bottom end of the support plate 55. Through the above settings, the sleeper is stably supported and its position is adjusted. At the same time, the direct friction between the sleeper and the equipment is reduced, the rail support platform and the steel reinforcement protective layer of the sleeper are protected, and the service life of the sleeper and the construction quality are improved.

[0029] As a further implementation of this solution, the cylinder assembly 63 includes a cylinder shell 631. The cylinder shell 631 has an intake port 633, a cylindrical end hole 635, a fixing groove 638, and an oil reservoir 639 on its inner side. An electromagnet 632, a first spring 634, and a baffle 637 are fixedly connected to the inner side of the oil reservoir 639. The intake port 633 is located at the end furthest from the fixing groove 638, while the electromagnet 632 and the first spring 634 are located at the end closest to the intake port 633. One end of the first spring 634 is connected to the piston... The piston rod assembly 64 is fixedly connected, and a first rubber sealing ring 636 is fixedly connected to the inner side of the cylindrical end hole 635. The inner side of the first rubber sealing ring 636 is in contact with the outer side of the piston rod assembly 64, and the inner side of the oil reservoir 639 is in contact with the outer side of the second rubber sealing ring 67. Through the above settings, the extension and retraction control of the piston rod assembly 64 is realized, which can drive the support plate 55 to rotate. At the same time, the extension and retraction speed of the piston rod assembly 64 can be effectively adjusted to prevent damage to the sleeper due to excessive speed, thereby improving the safety and reliability of construction.

[0030] As a further implementation of this solution, the flow limiting component 68 includes a cylindrical shell 681. A first annular plate 682 and a second annular plate 685 are fixedly connected to the inner side of the cylindrical shell 681. Mounting holes are opened on the inner sides of both the first annular plate 682 and the second annular plate 685. A solenoid valve 683 is fixedly connected to the inner side of the first annular plate 682. A silicone duckbill valve 686 is fixedly connected to the inner side of the second annular plate 685. A flow-slowing hole 687 is opened on the inner side of the silicone duckbill valve 686. An assembly groove 684 is opened on the inner side of the cylindrical shell 681. The assembly groove 684 communicates with the flow-slowing hole 687. The cylindrical shell 681 is fixedly connected to the cylinder shell 631. The outer side of the cylindrical shell 681 is fixedly connected to the inner side of the sealing airbag ball 69. Through the above settings, the flow and blockage of hydraulic oil can be controlled, and the speed of hydraulic oil flowing in different directions can be controlled.

[0031] As a further implementation of this solution, the lateral positioning component 8 includes an inner hole slide plate 81. An extension rod 82 is rotatably connected to the inner side of the inner hole slide plate 81 via a bearing. A push column 83 is fixedly connected to one side of the extension rod 82. A guide rod 84 is fixedly connected to one end of the inner hole slide plate 81. A second spring 85 is fixedly connected to one end of the guide rod 84 near the inner hole connecting plate 86. The inner hole connecting plate 86 is slidably connected to the outer side of the guide rod 84. The outer side of the inner hole slide plate 81 is slidably connected to the inner side of the guide channel 45. The inner hole connecting plate 86 is fixedly connected to the piston rod of the electric telescopic rod 37. The outer side of the push column 83 is in contact with the upper end of the double-block sleeper body 7. Through the above settings, the front and rear positions of the sleeper can be adjusted, the impact force during the adjustment process can be buffered, and the wear of the sleeper can be reduced.

[0032] Workflow: During the loading and unloading process of the double-block sleeper body 7, the integrated controller 26 and the remote control vehicle 1 are in normal working condition. The integrated controller 26 receives remote control signals and controls the actions of the remote control vehicle 1, the first servo motor 23, the electric telescopic rod 37, the electromagnet 632, and the solenoid valve 683 according to the received signals. The overall displacement of the device is controlled by the remote control vehicle 1. When the device arrives next to the stacked double-block sleeper bodies 7, the space between the two supporting components 5 at the front or rear end is roughly aligned with the double-block sleeper bodies 7 vertically. At this time, the first servo motor 23 is started. The first servo motor 23 drives the threaded rod 24 to rotate through the main shaft. The threaded rod 24 drives the outer spiral connection. The horizontal frame plate 31 achieves its lifting effect through the limiting of the guide column 25. The side seat 32 slides inside the embedded groove 22, improving the torsional resistance of the horizontal frame plate 31. The lifting of the side seat 32 will not contact the integrated controller 26. The lifting of the horizontal frame plate 31 controls the height of the vertical frame assembly 4, the support assembly 5, the telescopic drive assembly 6, and the lateral positioning assembly 8. Two sets of structures are set at the front and rear ends of the horizontal frame plate 31 to increase the amount of work per operation. The double-block sleeper body 7 includes a rail groove, a rail platform, and a steel frame. The upper part of the steel frame of the double-block sleeper body 7 is fixed inside the rail platform. The upper part of the rail platform forms a rail groove through two protrusions. By observation, when the lateral positioning assembly 8 enters the rail groove of the double-block sleeper body 7, the lateral positioning assembly... The bottom end of 8 is close to but not touching the double-block sleeper body 7. Simultaneously, the built-in shaft 54 ​​is positioned below the rail support platform of the double-block sleeper body 7. At this point, the first servo motor 23 stops, and the telescopic drive assembly 6 extends. The extension of the telescopic drive assembly 6 pushes the support plate 55 to rotate. The support plate 55 rotates around the built-in shaft 54, which is rotatably connected to the inside of the fixed shaft seat 53. When the top of the roller 59 touches the bottom of the rail support platform of the double-block sleeper body 7, the rail support platform of the double-block sleeper body 7 enters the groove in the support plate 55. At this point, the telescopic drive assembly 6 stops, its length is fixed, and thus the angle of the support plate 55 is fixed. The crossbeam is then controlled by the aforementioned lifting drive assembly 2. The lifting of the double-block sleeper body 7, supported by two fixing plates 55 and limited by the lateral positioning component 8, effectively raises the body. This lifting process prevents displacement of the double-block sleeper body 7, significantly reducing friction between the steel frame and external objects, thus preventing damage to the protective layer on the steel frame due to friction. Simultaneously, during unloading, the double-block sleeper body 7 moves downwards. Once its bottom contactes the ground or the desired placement location, the telescopic drive component 6 retracts, distancing the fixing plates 55 from the double-block sleeper body 7. This loading and unloading method not only improves the pass rate of the double-block sleeper body 7 after installation, but also...This also lays the groundwork for precise position adjustment of the double-block sleeper body 7;

[0033] When adjusting the position of the double-block sleeper body 7, the double-block sleeper body 7 is supported on the built-in shaft 54. First, the position of the double-block sleeper body 7 is adjusted in the left and right directions. Then, the second servo motor 34 is started to drive the double-threaded rotating rod 35 to rotate. The double-threaded rotating rod 35 rotates the inside of the two fixed plates 38. The rotation of the double-threaded rotating rod 35 drives the spirally connected perforated plate 58 to move. The perforated plate 58 drives the entire supporting assembly 5 to move. At the same time, the perforated plate 58 is slidably connected to the outside of the guide column 36, which limits the movement of the perforated plate 58. 52 slides inside the through groove 42. The top block 52 is slidably connected to the built-in rod 43 through the through hole. At this time, the two support plates 55 gradually move towards the rail support platform of the double-block sleeper body 7. The grooves of the two support plates 55 push the rail support platform of the double-block sleeper body 7, thereby achieving the effect of adjusting the left and right direction of the rail support platform of the double-block sleeper body 7. When adjusting the front and back position of the double-block sleeper body 7, the electric telescopic rod 37 is activated to push the inner hole connecting plate 86 to move. The inner hole connecting plate 86 drives the transverse positioning component 8 to move as a whole. When the pushing column 83 and the double-block sleeper body... After the protrusions of the rail support platform 7 are in contact, the push column 83 drives the guide rod 84 to move through the rotating inner hole slide plate 81. The guide rod 84 and the inner hole connecting plate 86 stretch the second spring 85. The second spring 85 is fixedly connected to the inner hole connecting plate 86. The second spring 85 acts as a buffer when the push column 83 contacts the double-block sleeper body 7. After the push column 83 contacts the double-block sleeper body 7, the push column 83 will rotate to a certain extent according to the structure of the protruding surface of the rail support platform of the double-block sleeper body 7. This reduces the impact on the double-block sleeper body during the displacement of the push column 83. When friction occurs, after the piston rods of the two electric telescopic rods 37 in the same group at the front or rear end move to a certain distance, the corresponding push column 83 pushes the double-block sleeper body 7 a certain distance. At this time, the inner hole connecting plate 86 is in contact with the push column 83 to prevent the push column 83 from being accidentally displaced, thereby adjusting the front and rear position of the double-block sleeper body 7. In this way, the double-block sleeper body 7 can be controlled in the position specified by the device. By the displacement of the remote control vehicle 1 and the lifting and lowering of the lifting drive component 2, the work of accurately positioning and laying the double-block sleeper body 7 can be achieved.

[0034] When feeding the double-block sleeper body 7 to reduce damage caused by improper fixing force, similar to the above principle, during the feeding process, the solenoid valve 683 is opened to control the extension and retraction of the drive assembly 6. Through the elastic force of the first spring 634, the piston rod assembly 64 is pushed towards the outside of the cylinder housing 631. Before this, the oil reservoir 639 between the first rubber seal ring 636 and the second rubber seal ring 67 is filled with hydraulic oil. When the second rubber seal ring 67 moves with the piston rod assembly 64, the hydraulic oil inside the oil reservoir 639 is squeezed, and the hydraulic oil enters through the solenoid valve 683. The hydraulic oil enters the assembly groove 684 and then passes through the slow-flow hole 687 into the silicone duckbill valve 686 and the sealing airbag ball 69. At this time, the sealing airbag ball 69 expands under the pressure of hydraulic oil. Because the slow-flow hole 687 has a small diameter, the flow rate of the hydraulic oil is controlled as it passes through it. This flow rate controls the outward movement speed of the piston rod assembly 64. The baffle 637 limits the movement distance of the piston rod assembly 64. Thus, under the slow extension of the telescopic drive assembly 6, the impact force generated by excessive speed can prevent the rail support platform of the double-block sleeper body 7 from being supported by the retaining plate 55. The roller 59 crushes the sleeper body 7, and after contacting the support platform of the double-block sleeper body 7, the squeezing force on the double-block sleeper body 7 is very small, reducing the displacement of the double-block sleeper body 7 caused by the thrust of the support plate 55, further protecting the double-block sleeper body 7. At this time, the control solenoid valve 683 is closed, and the hydraulic oil inside the oil reservoir 639 between the first rubber sealing ring 636 and the second rubber sealing ring 67 is in a sealed space, thereby reducing the possibility of the telescopic drive assembly 6 extending or retracting as a whole, thus ensuring safety when adjusting the position of the double-block sleeper body 7. When the telescopic drive assembly 6 retracts, the solenoid valve 683 is opened. When the electromagnet 632 is energized, the permanent magnet block 66 is driven by the magnetic attraction of the electromagnet 632 to move the piston rod assembly 64. The piston rod assembly 64 compresses the first spring 634. The magnetic attraction force is controlled to overcome the resistance when the piston rod assembly 64 moves. At this time, the hydraulic oil inside the sealing airbag ball 69 enters the oil storage tank 639 through the silicone duckbill valve 686 and the solenoid valve 683. A gap appears at the end of the silicone duckbill valve 686 near the solenoid valve 683 to facilitate the flow of hydraulic oil and improve the efficiency of resetting the piston rod assembly 64 into the cylinder shell 631, thus preparing for the reloading of the double-block sleeper body 7.

[0035] During the position adjustment of the double-block sleeper body 7, to reduce wear on the double-block sleeper body 7, the bottom end of the double-block sleeper body 7 contacts the outer side of the roller 59 during the left and right movement of the double-block sleeper body 7. The design of multiple rollers 59 achieves the effect of distributing the weight of the double-block sleeper body 7, preventing damage to the double-block sleeper body 7 due to excessive local pressure. At this time, the friction between the double-block sleeper body 7 and multiple rollers 59 controls the rotation of the rotating roller column 57. The rotating roller column 57 is rotatably connected inside the mounting groove 56. When the double-block sleeper body 7 moves back and forth, the double-block sleeper body 7 drives the rollers 59 to rotate through friction. The rollers 59 are rotatably connected inside the rotating roller column 57. This can reduce the phenomenon of damage to the double-block sleeper body 7 caused by friction on the rail support platform during the position adjustment process.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-block sleeper precision positioning and laying device for railway track construction, comprising a remote-controlled vehicle (1), characterized in that: The remote control vehicle (1) is fixedly connected to a lifting drive assembly (2) at the top. A horizontal frame assembly (3) is installed inside the lifting drive assembly (2). A vertical frame assembly (4) is fixedly connected to the lower end of the horizontal frame assembly (3). A support assembly (5) is installed inside the vertical frame assembly (4). A telescopic drive assembly (6) is fixedly connected to the lower end of the support assembly (5). A horizontal positioning assembly (8) is installed inside the vertical frame assembly (4). The lifting drive assembly (2) includes an arch frame (21), an inlay groove (22) is provided on the inner side of the arch frame (21), a first servo motor (23) is fixedly connected to the top of the arch frame (21), and a threaded rod (24) is fixedly connected to the end of the main shaft of the first servo motor (23). The crossbeam assembly (3) includes a crossbeam plate (31), with side seats (32) fixedly connected to both the left and right sides of the crossbeam plate (31). A frame (33) is fixedly connected to the bottom end of the crossbeam plate (31), and a mounting plate (38) is fixedly connected to the bottom end of the frame (33). The right side of the mounting plate (38) is fixedly connected to the housing of the second servo motor (34). A shaft hole is opened on the inner side of the mounting plate (38), and a double-threaded rotating rod (35) is rotatably connected to the inner side of the mounting plate (38). The right side of the double threaded rotating rod (35) is fixedly connected to the end of the main shaft of the second servo motor (34). The side of the fixed plate (38) is fixedly connected to the guide column (36). The bottom end of the frame (33) is fixedly connected to the electric telescopic rod (37) through the protrusion. The inner side of the cross plate (31) is provided with screw holes and straight holes. The inner side of the cross plate (31) is spirally connected to the outer side of the threaded rod (24) through the screw holes. The outer side of the side seat (32) slides on the inner side of the embedded groove (22). The vertical frame assembly (4) includes an extended base plate (41), a fixed plate frame (44) is fixedly connected to the top of the extended base plate (41), a guide channel (45) is provided on the inner side of the fixed plate frame (44), and the top of the fixed plate frame (44) is fixedly connected to the bottom of the frame (33). The supporting component (5) includes a push plate (51), a top block (52) and an opening plate (58) are fixedly connected to the top of the push plate (51), a fixed shaft seat (53) is fixedly connected to the side of the push plate (51) near the telescopic drive component (6), the inner side of the fixed shaft seat (53) is rotatably connected to the outer side of the built-in shaft (54) through a bearing, the outer side of the built-in shaft (54) is fixedly connected to the inner side of the support plate (55), and a mounting groove (56) is opened at one end of the support plate (55). The telescopic drive assembly (6) includes a first inner shaft seat (61), an outer connecting post (62) is rotatably connected to the inner side of the first inner shaft seat (61), a cylinder assembly (63) is fixedly connected to the end of the outer connecting post (62) away from the first inner shaft seat (61), a piston rod assembly (64) is slidably connected to the inner side of the cylinder assembly (63), a second inner shaft seat (65) is rotatably connected to the outer side of the piston rod assembly (64), a second rubber sealing ring (67) is fixedly connected to the outer side of the piston rod assembly (64), a permanent magnet block (66) is fixedly connected to the end of the piston rod assembly (64) near the second rubber sealing ring (67), a flow limiting assembly (68) is fixedly connected to the outer side of the cylinder assembly (63), and a sealing airbag ball (69) is fixedly connected to the outer side of the flow limiting assembly (68). The perforated plate (58) has a threaded hole and a sliding hole on its inner side. The threaded hole of the perforated plate (58) is spirally connected to the outer side of the double threaded rotating rod (35). The sliding hole of the perforated plate (58) is slidably connected to the outer side of the guide column (36). The first inner shaft seat (61) is fixed on the side of the push plate (51) near the fixed shaft seat (53). The second inner shaft seat (65) is fixed at the bottom end of the support plate (55). The lateral positioning component (8) includes an inner hole slide plate (81), an extension rod (82) is rotatably connected to the inner side of the inner hole slide plate (81) via a bearing, a push column (83) is fixedly connected to one side of the extension rod (82), a guide rod (84) is fixedly connected to one end of the inner hole slide plate (81), a second spring (85) is fixedly connected to one end of the guide rod (84) near the inner hole connecting plate (86), and the inner hole connecting plate (86) is slidably connected to the outer side of the guide rod (84). The outer side of the inner hole sliding plate (81) is slidably connected to the inner side of the guide rail (45), the inner hole connecting plate (86) is fixedly connected to the piston rod of the electric telescopic rod (37), and the outer side of the push column (83) is attached to the upper end of the double-block sleeper body (7).

2. The double-block sleeper precision positioning and laying device for railway track construction according to claim 1, characterized in that: The arch frame (21) is fixedly connected to a guide column (25) on the side near the upper end. An integrated controller (26) is fixedly connected to the right side of the arch frame (21). The upper end of the threaded rod (24) is rotatably connected to the inner side of the arch frame (21). The lower end of the threaded rod (24) is rotatably connected to the inner side of the remote control vehicle (1). The bottom end of the arch frame (21) and the bottom end of the guide column (25) are both fixedly connected to the top of the remote control vehicle (1).

3. The double-block sleeper precision positioning and laying device for railway track construction according to claim 2, characterized in that: The inner side of the crossbeam plate (31) is slidably connected to the outer side of the guide column (25) through a straight hole.

4. The double-block sleeper precision positioning and laying device for railway track construction according to claim 3, characterized in that: The extended base plate (41) has a through groove (42) on its inner side. An internal rod (43) is fixedly connected to the inside of the through groove (42). A top block (52) is embedded inside the through groove (42). The outside of the internal rod (43) is slidably connected to the inside of the top block (52).

5. The double-block sleeper precision positioning and laying device for railway track construction according to claim 4, characterized in that: The support plate (55) has a groove at one end near the mounting groove (56). The mounting groove (56) has a shaft rotation hole at both the front and rear ends. The mounting groove (56) is rotatably connected to the rotating roller column (57) through the shaft rotation hole. The rotating roller column (57) has a groove on its inner side. The groove on the inner side of the rotating roller column (57) is rotatably connected to the wheel axle of the roller (59) through a bearing. One-third of the outer side of the rotating roller column (57) protrudes out of the outer side of the mounting groove (56). One-third of the outer side of the roller (59) protrudes out of the outer side of the rotating roller column (57). The outer side of the roller (59) is in contact with the bottom end of the double-block sleeper body (7).

6. The double-block sleeper precision positioning and laying device for railway track construction according to claim 5, characterized in that: The cylinder assembly (63) includes a cylinder shell (631). The cylinder shell (631) has an air inlet (633), a cylindrical end hole (635), a fixing groove (638), and an oil reservoir (639) on its inner side. An electromagnet (632), a first spring (634), and a baffle (637) are fixedly connected to the inner side of the oil reservoir (639). The air inlet (633) is located at one end away from the fixing groove (638). The electromagnet (632) and the first spring (634) are located at one end close to the air inlet (633). One end of the first spring (634) is fixedly connected to the piston rod assembly (64). A first rubber sealing ring (636) is fixedly connected to the inner side of the cylindrical end hole (635). The inner side of the first rubber sealing ring (636) is in contact with the outer side of the piston rod assembly (64). The inner side of the oil reservoir (639) is in contact with the outer side of the second rubber sealing ring (67).

7. A double-block sleeper precision positioning and laying device for railway track construction according to claim 6, characterized in that: The flow limiting component (68) includes a cylindrical shell (681). A first annular plate (682) and a second annular plate (685) are fixedly connected to the inner side of the cylindrical shell (681). The inner sides of the first annular plate (682) and the second annular plate (685) are provided with mounting holes. A solenoid valve (683) is fixedly connected to the inner side of the first annular plate (682). A silicone duckbill valve (686) is fixedly connected to the inner side of the second annular plate (685). A slow flow hole (687) is provided on the inner side of the silicone duckbill valve (686). An assembly groove (684) is provided on the inner side of the cylindrical shell (681). The assembly groove (684) communicates with the slow flow hole (687). The cylindrical shell (681) is fixedly connected to the cylinder shell (631). The outer side of the cylindrical shell (681) is fixedly connected to the inner side of the sealing airbag ball (69).

8. A construction process for a double-block sleeper precision positioning and laying device for railway track construction as described in claim 7, characterized in that: Step 1: During the loading and unloading process, the equipment integrated controller (26) is in normal working condition and receives remote control signals. According to the signals, it controls the operation of the equipment remote control vehicle (1), the first servo motor (23), the electric telescopic rod (37), the electromagnet (632), and the solenoid valve (683). The equipment remote control vehicle (1) controls the overall displacement of the device. The space between the two support components (5) is roughly aligned with the double-block sleeper body (7). The first servo motor (23) is started, which drives the threaded rod (24) to rotate. The threaded rod (24) drives the outer spirally connected crossbeam plate (31) to rise and fall. The side seat (32) slides inside the embedded groove (22). The height of the crossbeam plate (31) is adjusted by controlling the rise and fall of the vertical frame component (4), the support component (5), the telescopic drive component (6), and the transverse positioning component (8). At the same time, the built-in shaft (54) is in position. When the sleeper support platform is at its lower position, the first servo motor (23) is stopped, and the telescopic drive assembly (6) is controlled to extend and push the support plate (55) to rotate. The support plate (55) rotates around the built-in shaft (54) as the axis. The built-in shaft (54) is connected inside the fixed shaft seat (53). After the top of the roller (59) is in contact with the bottom of the sleeper support platform, the sleeper support platform enters the groove of the support plate (55). The length of the telescopic drive assembly (6) is fixed, and the angle of the support plate (55) is fixed. The lifting drive assembly (2) controls the cross frame plate (31) to rise. The support plate (55) supports and the lateral positioning assembly (8) limits the lifting of the double-block sleeper body (7). When unloading, the double-block sleeper body (7) moves downward. After contacting the ground or placing it in the designated position, the telescopic drive assembly (6) is controlled to retract to separate the support plate (55) from the sleeper, thus completing the unloading operation. Step 2: After the double-block sleeper body (7) is supported on the built-in shaft (54), the left and right directions are adjusted first. The second servo motor (34) is started to drive the double-threaded rotating rod (35) to rotate. The double-threaded rotating rod (35) rotates inside the two fixed plates (38), driving the spirally connected perforated plate (58) to move. The perforated plate (58) drives the support assembly (5) to move as a whole. At the same time, the perforated plate (58) slides and is limited outside the guide column (36). The top block (52) slides inside the through groove (42). The top block (52) is slidably connected to the built-in rod (43) through the through hole. The two fixed plates (55) move closer to the sleeper support platform, pushing the sleeper support. After adjusting the left and right directions, the front and back directions are adjusted. The electric telescopic rod (37) is started to push the inner hole connecting plate (86) to move. The inner hole connecting plate (86) drives the transverse positioning component (8) to move as a whole. After the push column (83) is in contact with the protrusion of the sleeper support platform, the push column (83) drives the guide rod (84) to move through the rotating inner hole sliding plate (81). After the two electric telescopic rods (37) at the front or rear end move a certain distance, the sleeper is pushed by the push column (83) to adjust its front and back position. The sleeper is controlled in the specified position. Finally, the precise positioning and laying of the sleeper is completed by the displacement of the remote control vehicle (1) and the lifting drive component (2). Step 3: When feeding the double-block sleeper body (7), open the solenoid valve (683) to control the extension drive assembly (6) to extend. The first spring (634) pushes the piston rod assembly (64) to move outward from the cylinder shell (631). The oil reservoir (639) is filled with hydraulic oil. When the second rubber sealing ring (67) moves with the piston rod assembly (64), the hydraulic oil is squeezed and enters the assembly groove (684) through the solenoid valve (683). Then, it enters the silicone duckbill valve (686) and the sealing airbag ball (69) through the slow flow hole (687). 69) Under the pressure of hydraulic oil, the expansion is limited by the baffle (637) to the movement distance of the piston rod assembly (64). The perforated plate (58) contacts the rail sleeper support platform. After the solenoid valve (683) is closed, when the telescopic drive assembly (6) is retracted, the solenoid valve (683) is opened and the electromagnet (632) is energized. The magnetic attraction of the electromagnet (632) drives the permanent magnet block (66). The permanent magnet block (66) drives the piston rod assembly (64) to squeeze the first spring (634). The hydraulic oil flows back to the inside of the oil storage tank (639) through the silicone duckbill valve (686) and the solenoid valve (683). Step 4: During the position adjustment of the double-block sleeper body (7), the bottom of the sleeper contacts the outer side of multiple rollers (59). The rotating roller column (57) is controlled to rotate by the friction with the rollers (59). The rotating roller column (57) is connected inside the mounting groove (56). When the double-block sleeper body (7) moves back and forth, the rollers (59) are driven to rotate by the friction. The rollers (59) are connected inside the rotating roller column (57).

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