A rail-laying machine for tunnel railway construction

Abstract

The present invention belongs to the technical field of railway laying, and specifically relates to a rail laying machine for tunnel railway construction, including a moving box body; a cylinder, the cylinder is rotatably installed in the middle of the moving box body through a support shaft penetrating through the center; a conveying component, the conveying component is arranged on the top of the moving box body, and the sleeper is transported above the cylinder through the conveying component. The conveying component includes a first conveyor belt and a second conveyor belt. The first conveyor belt and the second conveyor belt are adjacent and their tops are flush. There are two second conveyor belts, which are respectively aligned with both sides of the first conveyor belt; a laying component, the laying component is arranged on the cylinder, and the sleeper is taken off from the conveying component through the laying component and laid at a predetermined position. By setting the laying component, the present invention takes the sleeper off from the conveying component and lays the sleeper at a predetermined position. The taking process is gentle and stable, and will not cause excessive impact on the equipment, thus prolonging the service life of the device.

Description

Technical Field

[0001] The invention belongs to the technical field of railway laying, in particular to a track laying machine for tunnel railway construction. Background Art

[0002] Railway transportation is a land-based transportation method. Railroad tracks evenly distribute the weight of trains, significantly increasing their load-carrying capacity. During railway construction, one of the steps is the distribution of sleepers. Sleepers are used to lay down railroad equipment and support the equipment they carry. These sleepers need to be evenly distributed along the railway's pre-set routes.

[0003] A patent application CN116024854B discloses a railway sleeper laying device, the key points of which are: it includes a laying box, a support assembly and an adjustment assembly, the sleepers enter the laying cavity at a uniform speed under the action of the conveying assembly, two groups of support units are arranged at intervals on the left and right sides of the laying cavity, the support chains of the two groups of support units rotate in opposite directions, and at the same time, multiple support rods are evenly distributed on the outer peripheral wall of the support chain, when the sleepers enter the laying cavity, according to the adjustment of the rotation speed of the support chain, the support rods of the two groups of support units can support the sleepers entering the laying cavity, as the support chain rotates, the support rods gradually run to the arc section of the support chain, and the two support rods gradually break away from the support for the sleepers, according to the setting of the adjustment rod, when the support rod runs to the arc section, the adjustment rod is synchronously deflected, if the distance between two adjacent sleepers increases or decreases, the deflection of the adjustment rod can move the sleepers, thereby improving the accuracy of the placement of the sleepers.

[0004] However, the above technology often has the following defects: the existing technology first supports the sleepers with support blocks, then withdraws the second conveyor belt from under the sleepers, and then withdraws the support blocks on both sides from under the sleepers, allowing the sleepers to fall freely onto the buffer plates below. Due to the heavy weight of the sleepers, this processing method causes the buffer plates themselves and their connection positions to be subjected to large impact forces when bearing the weight of the sleepers, which can easily cause parts to be damaged after long-term use, thereby shortening the service life of the equipment. To this end, the present invention provides a track laying machine for tunnel railway construction. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a track laying machine for tunnel railway construction according to the present invention is characterized in that it comprises:

[0007] Mobile box;

[0008] A cylinder is rotatably mounted in the middle of the mobile box via a support shaft provided through the center;

[0009] A conveying assembly, the conveying assembly is arranged on the top of the moving box body, and the sleeper is transported above the cylinder through the conveying assembly. The conveying assembly includes a first conveyor belt and a second conveyor belt. The first conveyor belt and the second conveyor belt are adjacent and their tops are flush. There are two second conveyor belts and they are respectively aligned with both sides of the first conveyor belt;

[0010] A laying assembly, the laying assembly is arranged on the cylinder, and the sleeper is taken off from the conveying assembly through the laying assembly and laid at a predetermined position; the laying assembly includes a movable rod, a clamping assembly for clamping the sleeper is arranged at the top of the movable rod, a fixed block is fixed at the bottom end of the movable rod, the fixed block is hermetically slidably arranged in a movable cavity arranged on the cylinder, a permanent magnet is fixed at the bottom of the fixed block, and an electromagnetic block is inlaid at the corresponding position of the support shaft;

[0011] A driving assembly, the driving assembly is arranged inside the moving box body, and the cylinder is driven to rotate through the driving assembly.

[0012] Preferably, the clamping assembly includes a support plate, the support plate is horizontally fixed at the top of the movable rod, connecting blocks are rotatably installed in movable grooves opened at both ends of the support plate, clamping plates are fixed at the tops of the connecting blocks, a piston three is hermetically slidably sleeved in the middle of the movable rod, a support rod is fixed at the top of the piston three, a movable sleeve is fixed at the top of the support rod, the movable sleeve is slidably sleeved on the movable rod, and two ends of the top of the movable sleeve are symmetrically and rotatably installed with inclined support plates. The end of the inclined support plate away from the movable sleeve is rotatably installed at the end of an extension plate at the bottom of the connecting block. A sealing cover is rotatably installed at the center of the end of the cylinder, a first connecting pipe is fixed on the side wall of the sealing cover, a piston one is hermetically slidably installed in the middle of the first connecting pipe, a hydraulic cylinder for driving the piston one to reciprocate is fixed on the inner wall of the moving box body, an air duct is arranged inside the cylinder, and the gas inside the sealing cover can enter the cavity between the fixed block and the piston three through the air duct.

[0013] Preferably, the driving assembly includes a first transmission wheel, the first transmission wheel is rotatably installed on the moving box body through a rotating shaft, a motor for driving the rotating shaft and the transmission wheel to rotate is fixed on the outer wall of the moving box body, a second transmission wheel is fixed on the outer wall of the end of the cylinder, the first transmission wheel and the second transmission wheel are connected by a transmission chain, and the transmission chain transmits torque between the first transmission wheel and the second transmission wheel.

[0014] Preferably, it further includes a rectifying component. The rectifying component is used to rectify the position of the sleeper so that the distance between adjacent sleepers is equal. The rectifying component includes a mounting cover fixed in the middle of the cylinder. An inner cavity is provided inside the mounting cover. The air duct communicates with the inner cavity. A second connecting pipe is fixed on the inner wall of the mounting cover. A second piston is hermetically and slidably mounted inside the second connecting pipe. A dial rod is fixed on the side of the second piston. One end of the dial rod away from the second piston extends to the outside of the mounting cover. A first air hole is provided at the center of the end of the second connecting pipe away from the inner wall of the mounting cover. A flap is hinged inside the end of the second connecting pipe and outside the first air hole through a torsion spring. A second air hole is provided beside the first air hole.

[0015] Preferably, anti - detachment blocks are fixed on the inner wall of the movable cavity.

[0016] Preferably, the diameter of the first air hole is larger than that of the second air hole.

[0017] Preferably, a partition is fixed inside the mounting cover. The inner cavity of the mounting cover is divided into two halves by the partition.

[0018] Preferably, the clamping plate is set in an L - shape.

[0019] Preferably, a connecting plate is fixed on the side wall of the support plate. Adjacent clamping components are connected together through the connecting plate.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. For the track - laying machine for tunnel railway construction of the present invention, the sleeper is taken off from the conveying component through the setting of the laying component and laid at a predetermined position. The cylinder is driven to rotate by the driving component, so that the laying component rotates to directly below the sleeper. At this time, the permanent magnet and the electromagnetic block face each other. The repulsive force between the electromagnetic block and the permanent magnet pushes the fixed block, the movable rod and the clamping component upward. The clamping component pushes the sleeper to separate it from the second conveyor belt, and then clamps the sleeper. In this way, the sleeper can be taken smoothly and stably; then the cylinder is driven to rotate again by the driving component, so that the sleeper rotates to a vertically downward position, and the restriction of the clamping component on the sleeper is removed, so that the sleeper freely falls to the preset position to complete the laying work; in addition, when the sleeper moves to the vertical position, the sleeper automatically moves downward due to gravity and approaches the ground. In this way, when the sleeper is released, it can quickly contact the ground, reducing the influence of the horizontal movement of the moving box on the landing point of the sleeper.

[0022] When the rail is in a vertical position, the air is drawn out of the inner cavity of the mounting cover, and the restraint of the clamping assembly on the rail is removed, so that the rail can fall freely. At the same time, the air inside the mounting cover is also drawn out, so that the air in the inner cavity of the connecting pipe 2 is drawn out synchronously, and the air hole 1 is blocked by the flap, so that the air outlet rate of the connecting pipe 2 is reduced, resulting in a slower retraction speed of the piston 2 and the shift rod, which plays the role of delaying the reset of the shift rod. In this way, during the rotation of the cylinder, the shift rod can contact the rail sleeper on the ground, push the rail sleeper, and adjust the position of the rail sleeper so that the distance between two adjacent rail sleepers is the same; when the shift rod is completely reset, it can pass over the rail sleeper for the next laying work. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 It is a perspective view of the present invention;

[0025] Figure 2 It is a schematic diagram of the interior of the mobile box of the present invention;

[0026] Figure 3 It is a partial structural schematic diagram of the present invention;

[0027] Figure 4 yes Figure 3 A schematic diagram of the structure at center A;

[0028] Figure 5 It is a partial structural cross-sectional view of the present invention;

[0029] Figure 6 yes Figure 5 A magnified schematic diagram of the structure at point B in the middle;

[0030] Figure 7 is a cross-sectional view of the present invention;

[0031] Figure 8 is a cross-sectional view of the correction assembly of the present invention;

[0032] Figure 9 It is a schematic structural diagram of the clamping assembly of the present invention.

[0033] In the figure: 1. Moving box body; 2. First conveyor belt; 3. Second conveyor belt; 4. Cylinder; 5. Installation cover; 6. Motor; 7. Support shaft; 8. Sealing cover; 9. Hydraulic cylinder; 10. First connecting pipe; 11. First transmission wheel; 12. Transmission chain; 13. Second transmission wheel; 14. Poking rod; 15. Movable cavity; 16. Movable rod; 17. Support plate; 18. Clamping plate; 19. Connecting plate; 20. Moving sleeve; 21. Diagonal support plate; 22. Connecting block; 23. Support rod; 24. First piston; 25. Air passage; 26. Second connecting pipe; 27. Second piston; 28. Electromagnetic block; 29. Fixed block; 30. Permanent magnet; 31. Third piston; 32. Partition plate; 33. First air hole; 34. Flap; 35. Second air hole. Detailed implementation manner

[0034] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0035] Embodiment 1: As Figures 1 to 9 shown, a rail laying machine for tunnel railway construction described in an embodiment of the present invention includes:

[0036] Moving box body 1; the moving box body 1 can move along the ground through rollers, and the rollers can be rotatably arranged; the moving box body 1 can be fixed on a vehicle and move together with the vehicle; both the upper and lower parts of the moving box body 1 are provided with openings;

[0037] Cylinder 4, the cylinder 4 is rotatably installed in the middle of the moving box body 1 through a support shaft 7 penetrating through the center;

[0038] Conveying assembly, the conveying assembly is arranged on the top of the moving box body 1, and the sleepers are transported above the cylinder 4 through the conveying assembly. The conveying assembly includes a first conveyor belt 2 and a second conveyor belt 3. The first conveyor belt 2 and the second conveyor belt 3 are adjacent and their tops are flush. There are two second conveyor belts 3 and they are respectively aligned with both sides of the first conveyor belt 2;

[0039] Laying assembly, the laying assembly is arranged on the cylinder 4, and the sleepers are taken off from the conveying assembly through the laying assembly and laid at a predetermined position; the laying assembly includes a movable rod 16, a clamping assembly for clamping the sleepers is arranged at the top of the movable rod 16, a fixed block 29 is fixed at the bottom end of the movable rod 16, the fixed block 29 is hermetically and slidably arranged in a movable cavity 15 provided on the cylinder 4, a permanent magnet 30 is fixed at the bottom of the fixed block 29, and an electromagnetic block 28 is embedded at the corresponding position of the support shaft 7;

[0040] Driving assembly, the driving assembly is arranged inside the moving box body 1, and the cylinder 4 is driven to rotate through the driving assembly;

[0041] During operation, the conveyor belt 1-2 and the conveyor belt 1-3 are respectively driven to rotate by the driving motor. Then, the sleeper is placed on the conveyor belt 1-2, and the sleeper is transferred to the conveyor belt 1-3 through the conveyor belt 1-2. The rotation speed of the conveyor belt 1-2 is greater than that of the conveyor belt 1-3. When the conveyor belt 1-3 transports the sleeper above the cylinder 4, the movement pauses. At the same time, the cylinder 4 is driven to rotate by the driving component, so that the laying component rotates to directly below the sleeper. At this time, the permanent magnet 30 and the electromagnet block 28 are opposite to each other. At this time, the controller automatically powers on the electromagnet block 28 and controls the current direction of the electromagnet block 28, so that the electromagnet block 28 repels the permanent magnet 30. In this way, the fixed block 29, the movable rod 16 and the clamping component are pushed upward by the mutual repulsive force. The clamping component first pushes the sleeper upward, so that the sleeper is separated from the conveyor belt 1-3, and then the sleeper is clamped. In this way, the sleeper can be taken gently and stably, without causing excessive impact on related equipment, and the service life of the device is extended. Then, the driving component drives the cylinder 4 to rotate again, taking the sleeper out of the range of the conveyor belt 1-3. At this time, the conveyor belt 1-2 and the conveyor belt 1-3 are started again to transport another sleeper. At the same time, when the sleeper leaves the range of the conveyor belt 1-3, the electromagnet block 28 is powered off. At this time, under the action of gravity, the structures such as the fixed block 29, the permanent magnet 30, the movable rod 16, the clamping component and the sleeper move relatively inward into the movable cavity 15. The driving component drives the cylinder 4 to rotate 180 degrees, so that the sleeper rotates to the vertically downward position. At this time, the restriction of the clamping component on the sleeper is removed, so that the sleeper freely falls to the preset position, completing the laying work. When the sleeper moves to the obliquely downward range along with the cylinder 4, under the action of gravity, the relevant components of the clamping component and the sleeper can slowly move outward along the movable cavity 15. In this way, when the sleeper moves to the vertical position, the sleeper can be as close to the ground as possible. In this way, when the sleeper is released, the sleeper can quickly contact the ground, reducing the impact of the horizontal movement of the moving box body 1 on the landing point of the sleeper. In addition, at least one pair of laying components and clamping components are provided, which can clamp and release the sleeper cyclically, improving the laying efficiency.

[0042] The clamping assembly includes a support plate 17, which is horizontally fixed at the top of the movable rod 16. Connecting blocks 22 are rotatably installed in the movable slots opened at both ends of the support plate 17. A clamping plate 18 is fixed at the top of the connecting block 22. A piston three 31 is hermetically and slidably sleeved on the middle part of the movable rod 16. A support rod 23 is fixed at the top of the piston three 31. A movable sleeve 20 is fixed at the top of the support rod 23. The movable sleeve 20 is slidably sleeved on the movable rod 16. And at both ends of the top of the movable sleeve 20, inclined support plates 21 are symmetrically and rotatably installed. The end of the inclined support plate 21 far away from the movable sleeve 20 is rotatably installed at the end of the extension plate at the bottom of the connecting block 22. A sealing cover 8 is rotatably installed at the center of the end of the cylinder 4. A connecting pipe one 10 is fixed on the side wall of the sealing cover 8. A piston one 24 is hermetically and slidably installed in the middle of the connecting pipe one 10. A hydraulic cylinder 9 for driving the piston one 24 to reciprocate is fixed on the inner wall of the movable box body 1. An air duct 25 is arranged inside the cylinder 4. The gas inside the sealing cover 8 can enter the cavity between the fixed block 29 and the piston three 31 through the air duct 25. During operation, when taking the sleeper, the hydraulic cylinder 9 pushes the piston one 24 to move towards the inside of the connecting pipe one 10, and then squeezes the gas into the sealing cover 8. At the same time, the gas enters the cavity between the fixed block 29 and the piston three 31 along the air duct 25. The gas in the cavity increases, and then pushes the piston three 31 away from the fixed block 29. The piston three 31 pushes the movable sleeve 20 through the support rod 23. The movable sleeve 20 pushes the extension plate at the bottom of the connecting block 22 through the inclined support plate 21, and then makes the two clamping plates 18 rotate towards the middle with the connecting block 22 as the center and clamp the sleeper, so as to clamp and fix the sleeper. When the sleeper moves to the vertical position, control the hydraulic cylinder 9 to contract, drive the piston one 24 to move in the reverse direction, and then extract the gas inside the cavity, so that the piston one 24 moves in the reverse direction, and then drives the clamping plate 18 to move in the reverse direction, so as to release the sleeper and facilitate the automatic laying of the sleeper.

[0043] The driving assembly includes a driving wheel one 11, which is rotatably installed on the movable box body 1 through a rotating shaft. A motor 6 for driving the rotating shaft and the driving wheel to rotate is fixed on the outer wall of the movable box body 1. A driving wheel two 13 is fixed on the outer wall of the end of the cylinder 4. The driving wheel one 11 and the driving wheel two 13 are connected by a transmission chain 12. The transmission chain 12 transmits torque between the driving wheel one 11 and the driving wheel two 13. During operation, the driving wheel one 11 and the driving wheel two 13 can adopt sprockets, and the transmission chain 12 can be a paired chain. The motor 6 drives the driving wheel one 11 to rotate, and then drives the driving wheel two 13 and the cylinder 4 to rotate through the transmission chain 12, providing driving force for the cylinder 4, so as to control the rotation and pause of the cylinder 4 as needed to meet the laying requirements. In addition, by controlling the rotation speed of the motor 6, the rotation speed of the cylinder 4 can be controlled, and then combined with the moving speed of the movable box body 1, the distance between adjacent two sleepers can be controlled as needed, which is applicable to different laying requirements and has a wider range of use.

[0044] It further includes a rectifying component. The rectifying component is used to rectify the position of the sleeper so that the distance between adjacent sleepers is equal. The rectifying component includes a mounting cover 5 fixed in the middle of the cylinder 4. An inner cavity is provided inside the mounting cover 5. The air duct 25 communicates with the inner cavity. A second connecting pipe 26 is fixed on the inner wall of the mounting cover 5. A second piston 27 is hermetically and slidably mounted inside the second connecting pipe 26. A lever 14 is fixed to the side of the second piston 27. One end of the lever 14 away from the second piston 27 extends outside the mounting cover 5. A first air hole 33 is provided at the center of the end of the second connecting pipe 26 away from the inner wall of the mounting cover 5. A flap 34 is hinged inside the end of the second connecting pipe 26 at a position outside the first air hole 33 through a torsion spring. A second air hole 35 is provided beside the first air hole 33. During operation, when inflating the device through the first piston 24 and the first connecting pipe 10, the gas simultaneously enters the inner cavity of the mounting cover 5 through the air duct 25. The air pressure inside the inner cavity increases. The gas enters the second connecting pipe 26 through the first air hole 33 and the second air hole 35. At this time, the flap 34 opens to facilitate air intake, thereby pushing the second piston 27 to move outwards. The second piston 27 drives the lever 14 to move outwards. When the sleeper moves to the vertical position, the clamping component's restriction on the sleeper is removed by pumping air outwards, enabling the sleeper to fall freely. At the same time, the gas inside the mounting cover 5 is also pumped out, causing the gas in the inner cavity of the second connecting pipe 26 to be pumped out synchronously. At this time, the flap 34 closes, blocking the first air hole 33, and the gas inside the second connecting pipe 26 can only be discharged through the second air hole 35. The air outlet rate decreases, resulting in a slower retraction speed of the second piston 27 and the lever 14, playing a role in delaying the reset of the lever 14. In this way, during the rotation of the cylinder 4, the lever 14 can contact the sleeper on the ground, push the sleeper, and adjust the position of the sleeper so that the distance between adjacent sleepers is the same. After the lever 14 is fully reset, it can pass above the sleeper to facilitate the next laying work.

[0045] Anti - detachment blocks are fixed on the inner wall of the movable cavity 15. During operation, the movement range of the second piston 27 can be restricted by setting the anti - detachment blocks, preventing the second piston 27 from detaching from the movable cavity 15.

[0046] The diameter of the first air hole 33 is larger than that of the second air hole 35. During operation, it is used to reduce the rate of gas discharge from the second connecting pipe 26 in order to delay the reset of the lever 14.

[0047] A partition 32 is fixed inside the mounting cover 5. The inner cavity of the mounting cover 5 is divided into two halves by the partition 32. During operation, there are two sets of laying components and rectifying components. The inner cavity of the mounting cover 5 is separated by the partition 32 so that they can be controlled separately by the two end hydraulic cylinders 9 at both ends without interference.

[0048] The clamping plate 18 is arranged in an L shape; during operation, the two sides and the upper part of the sleeper can be clamped and fixed by the clamping plate 18, so that the sleeper will not fall off during the rotation of the cylinder 4.

[0049] Embodiment 2: As Figure 9 shown, compared with Embodiment 1, another implementation manner of the present invention is that a connecting plate 19 is fixed on the side wall of the support plate 17, and adjacent clamping assemblies are connected together through the connecting plate 19; during operation, the support plates 17 in the clamping assemblies on both sides are connected together through the connecting plate 19, so as to limit the clamping assemblies on both sides, and keep the clamping plates 18 on both sides in a parallel position, which is convenient for clamping and fixing the sleeper simultaneously.

[0050] Working principle: Place the sleeper on conveyor belt 2. Transfer the sleeper to conveyor belt 3 through conveyor belt 2. The rotation speed of conveyor belt 2 is greater than that of conveyor belt 3. And when conveyor belt 3 transports the sleeper above the cylinder 4, it pauses. At the same time, drive the cylinder 4 to rotate through the drive assembly, so that the laying assembly rotates to directly below the sleeper. At this time, the permanent magnet 30 and the electromagnet block 28 face each other. At this time, the controller automatically powers on the electromagnet block 28 and controls the current direction of the electromagnet block 28, so that the electromagnet block 28 repels the permanent magnet 30. In this way, the fixed block 29, the movable rod 16 and the clamping assembly are pushed upward by the mutual repulsive force. First, the clamping assembly pushes the sleeper upward to separate the sleeper from conveyor belt 3, and then clamps the sleeper, so that the sleeper can be stably picked up; Then drive the cylinder 4 to rotate again through the drive assembly to take the sleeper out of the range of conveyor belt 3. At this time, conveyor belt 1 and conveyor belt 3 start again to convey another sleeper. At the same time, when the sleeper leaves the range of conveyor belt 3, the electromagnet block 28 is powered off. At this time, under the action of gravity, structures such as the fixed block 29, the permanent magnet 30, the movable rod 16, the clamping assembly and the sleeper move relatively into the movable cavity 15. Drive the cylinder 4 to rotate 180 degrees through the drive assembly, so that the sleeper rotates to the vertically downward position. At this time, remove the restriction of the clamping assembly on the sleeper, so that the sleeper freely falls to the preset position to complete the laying work; When the sleeper moves to the obliquely downward range along with the cylinder 4, under the action of gravity, the relevant components of the clamping assembly and the sleeper can slowly move outward along the movable cavity 15. In this way, when the sleeper moves to the vertical position, the sleeper can be as close to the ground as possible. In this way, when the sleeper is released, the sleeper can quickly contact the ground, reducing the impact of the horizontal movement of the moving box 1 on the landing point of the sleeper; When inflating the device through the piston 1 24 and the connecting pipe 1 10, the gas simultaneously enters the inner cavity of the mounting cover 5 through the air duct 25. The air pressure inside the inner cavity increases, and the gas enters the connecting pipe 2 26 through the air hole 1 33 and the air hole 2 35. At this time, the flap 34 opens to facilitate air intake, thus pushing the piston 2 27 to move outward. The piston 2 27 drives the lever 14 to move outward. When the sleeper moves to the vertical position, remove the restriction of the clamping assembly on the sleeper by pumping air outward, so that the sleeper can freely fall. At the same time, the gas inside the mounting cover 5 is also pumped out, so that the gas in the inner cavity of the connecting pipe 2 26 is synchronously pumped out. At this time, the flap 34 closes, blocking the air hole 1 33, and only the gas inside the connecting pipe 2 26 can be discharged through the air hole 2 35. The air output decreases, resulting in a slower return speed of the piston 2 27 and the lever 14, playing a role in delaying the reset of the lever 14. In this way, during the rotation of the cylinder 4, the lever 14 can contact the sleeper on the ground, push the sleeper, and adjust the position of the sleeper so that the distance between adjacent sleepers is the same; When the lever 14 is fully reset, it can pass above the sleeper for the next laying work.

[0051] The above front, back, left, right, up, and down are all based on the Figure 1 in the accompanying drawings of the specification. Taking the perspective of the person observing as the standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0052] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention.

[0053] The above has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A track-laying machine for tunnel railway construction, characterized in that: Comprising: A moving box body (1); A cylinder (4), the cylinder (4) is rotationally installed in the middle of the moving box body (1) through a support shaft (7) arranged through the center; A conveying assembly, the conveying assembly is arranged on the top of the moving box body (1), and the sleeper is transported above the cylinder (4) through the conveying assembly. The conveying assembly includes a first conveyor belt (2) and a second conveyor belt (3). The first conveyor belt (2) and the second conveyor belt (3) are adjacent and their tops are flush. There are two second conveyor belts (3) and they are respectively aligned with both sides of the first conveyor belt (2); A laying assembly, the laying assembly is arranged on the cylinder (4), and the sleeper is taken off from the conveying assembly through the laying assembly and laid at a predetermined position. The laying assembly includes a movable rod (16). A clamping assembly for clamping the sleeper is arranged at the top of the movable rod (16). A fixed block (29) is fixed at the bottom end of the movable rod (16). The fixed block (29) is hermetically and slidably arranged in a movable cavity (15) arranged on the cylinder (4). A permanent magnet (30) is fixed at the bottom of the fixed block (29). An electromagnetic block (28) is inlaid at the corresponding position of the support shaft (7); A driving assembly, the driving assembly is arranged inside the moving box body (1), and the cylinder (4) is driven to rotate through the driving assembly; The clamping assembly includes a support plate (17). The support plate (17) is horizontally fixed at the top of the movable rod (16). Connecting blocks (22) are rotationally installed in movable grooves opened at both ends of the support plate (17). Clamping plates (18) are fixed at the tops of the connecting blocks (22). A third piston (31) is hermetically and slidably sleeved in the middle of the movable rod (16). A support rod (23) is fixed at the top of the third piston (31). A movable sleeve (20) is fixed at the top of the support rod (23). The movable sleeve (20) is slidably sleeved on the movable rod (16). And at both ends of the top of the movable sleeve (20), inclined support plates (21) are symmetrically and rotationally installed. The end of the inclined support plate (21) away from the movable sleeve (20) is rotationally installed at the end of an extension plate at the bottom of the connecting block (22). A sealing cover (8) is rotationally installed at the center of the end of the cylinder (4). A first connecting pipe (10) is fixed on the side wall of the sealing cover (8). A first piston (24) is hermetically and slidably installed in the middle of the first connecting pipe (10). A hydraulic cylinder (9) for driving the first piston (24) to reciprocate is fixed on the inner wall of the moving box body (1). An air passage (25) is arranged inside the cylinder (4). The gas inside the sealing cover (8) can enter the cavity between the fixed block (29) and the third piston (31) through the air passage (25).

2. The track-laying machine for tunnel railway construction according to claim 1, characterized in that: The driving assembly includes a first transmission wheel (11), and the first transmission wheel (11) is rotatably mounted on the moving box body (1) through a rotating shaft. A motor (6) for driving the rotating shaft and the transmission wheel to rotate is fixed on the outer wall of the moving box body (1). A second transmission wheel (13) is fixed on the outer wall of the end of the cylinder (4). The first transmission wheel (11) and the second transmission wheel (13) are connected by a transmission chain (12), and the transmission chain (12) transmits torque between the first transmission wheel (11) and the second transmission wheel (13).

3. The track-laying machine for tunnel railway construction according to claim 2, characterized in that: It further includes a position-correcting assembly. The position-correcting assembly is used to correct the position of the sleepers so that the distances between adjacent sleepers are equal. The position-correcting assembly includes a mounting cover (5) fixed in the middle of the cylinder (4). An inner cavity is provided inside the mounting cover (5). The air duct (25) communicates with the inner cavity. A second connecting pipe (26) is fixed on the inner wall of the mounting cover (5). A second piston (27) is hermetically and slidably mounted inside the second connecting pipe (26). A shift lever (14) is fixed on the side of the second piston (27). One end of the shift lever (14) away from the second piston (27) extends to the outside of the mounting cover (5). A first air hole (33) is provided at the center of the end of the second connecting pipe (26) away from the inner wall of the mounting cover (5). A flap (34) is hinged inside the end of the second connecting pipe (26) and outside the first air hole (33) through a torsion spring. A second air hole (35) is provided beside the first air hole (33).

4. A track-laying machine for tunnel railway construction according to claim 3, characterized in that: Anti-detachment blocks are fixed on the inner wall of the movable cavity (15).

5. A track-laying machine for tunnel railway construction according to claim 4, characterized in that: The diameter of the first air hole (33) is larger than the diameter of the second air hole (35).

6. A track-laying machine for tunnel railway construction according to claim 5, characterized in that: A partition plate (32) is fixed inside the mounting cover (5), and the inner cavity of the mounting cover (5) is divided into two halves by the partition plate (32).

7. A rail-laying machine for tunnel railway construction according to claim 6, characterized in that: The clamping plate (18) is arranged in an L shape.

8. A track-laying machine for tunnel railway construction according to claim 7, characterized in that: A connecting plate (19) is fixed on the side wall of the support plate (17), and adjacent clamping assemblies are connected together through the connecting plate (19).

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