Railway steel transport device

Abstract

This invention discloses a rail steel transport device, including a fixed ring and a transport vehicle. A connecting ring is movably installed at the top of the fixed ring, and the connecting ring is connected to the transport vehicle through a connector. A telescopic rod is provided on the fixed ring, which is used to achieve docking assembly between adjacent fixed rings. The telescopic rod is equipped with a first screw for locking the telescopic stroke. Movable arms are hinged to both sides of the fixed ring, and clamping arms are hinged to the lower ends of the movable arms. The clamping arms are hinged to each other in pairs, so that the hinge points of the movable arms and clamping arms form a rhomboid structure. The clamping arms are designed with an L-shaped structure. The fixed ring, movable arms, and clamping arms cooperate to form a single clamping structure. This invention uses a double-clamping structure at both ends of the rail steel, combined with a telescopic rod to form an integrated limiting frame. During lifting operations, both ends of the rail are simultaneously stressed, improving the problem of steel body tilting and dragging wear caused by uneven load distribution in traditional single-point fixing.

Description

Technical Field

[0001] This invention relates to the field of rail steel transportation technology, and in particular to a rail steel transportation device. Background Technology

[0002] When laying rail steel, it needs to be moved to the laying point. There are generally two methods for this. First, it can be lifted by a crane. During the lifting process, the rail steel needs to be secured with straps or clamps before lifting. Since the rail steel is long and thin, the weight at both ends of the fixing point is uneven, which can cause the rail steel to tilt during lifting. The end closer to the ground is prone to dragging and causing wear. Furthermore, the rail steel is prone to slipping after being secured with straps or clamps, posing a safety hazard. Second, when working in confined spaces, such as underpasses or tunnels, cranes cannot enter. In this case, the rail steel must be manually moved to the laying point. Manual moving is laborious, and the manual labor must exert force simultaneously. If the force is uneven, the rail steel can easily tilt too much during transportation, causing a risk of falling, which poses a significant safety hazard. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned shortcomings by providing a rail steel transport device.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A rail steel transport device includes a fixed ring and a transport vehicle; a connecting ring is movably installed at the top of the fixed ring, and the connecting ring is connected to the transport vehicle through a connector; The fixed ring is provided with a telescopic rod, which is used to realize the docking assembly between adjacent fixed rings. The telescopic rod is equipped with a first screw for locking the telescopic stroke. Both sides of the fixed ring are hinged with movable arms, and the lower end of the movable arm is hinged with a clamping arm. The clamping arms are hinged to each other in pairs, so that the hinge points of the movable arm and the clamping arm form a rhombus structure. The clamping arm is designed with an L-shaped structure, and the fixed ring, movable arm and clamping arm cooperate to form a single clamping structure.

[0005] Furthermore, the telescopic rod includes a hollow rod, and movable rods are slidably fitted at both ends of the hollow rod; the first screw is threadedly installed on the hollow rod; hollow cylinders are fixed on both sides of the fixing ring, and the ends of the movable rods are threadedly locked to the inside of the hollow cylinders.

[0006] Furthermore, the transport vehicle includes a frame, with motion wheels mounted on the bottom of the frame via shock absorbers; a slider is slidably mounted on the top of the frame via an opening; and a lifting assembly is mounted on the top of the slider.

[0007] Furthermore, the lifting assembly includes a housing, which is fixed to the upper end of the slider; a roller is mounted on the housing through a through groove, and the lower end face of the roller abuts against the top surface of the frame; a fixing unit for locking the position of the housing is installed on the housing; a cover plate is installed on the top of the housing; a worm gear and a worm are rotatably installed in the inner cavity of the housing, and the worm gear and the worm mesh with each other; a second screw is installed at the center of the worm gear, and a second through hole is opened on the lower side wall of the second screw.

[0008] Furthermore, the top of the second screw moves through the cover plate, and the bottom of the second screw moves through the bottom of the housing.

[0009] Furthermore, the fixing unit includes a third screw, which is mounted on the housing, and a rocker arm is mounted on the top of the third screw; a pressure block is mounted on the bottom of the third screw.

[0010] Furthermore, a guide groove is provided on the side of the second screw, and the contact surface between the cover plate and the second screw is embedded in the guide groove to prevent the second screw from rotating.

[0011] Furthermore, the connector includes a movable ring, which is movably sleeved on the outside of the connecting ring; a fixed cylinder is installed on the top of the connecting ring; and the fixed cylinder has symmetrically formed first through holes.

[0012] Furthermore, the movable rod has a circular cross-section, allowing it to rotate inside the hollow rod.

[0013] Furthermore, one end of the worm gear extends to the outside of the housing via a connected shaft, and a rocker arm is installed at the free end of the connected shaft.

[0014] The beneficial effects of this invention are reflected in: 1. This invention adopts a double-clamping structure at both ends of the rail steel, combined with a telescopic rod to form an integrated limiting frame. During lifting operations, both ends of the rail are subjected to force simultaneously, which improves the problem of steel body tilting and dragging wear caused by uneven load in traditional single-point fixing.

[0015] 2. In this invention, the movable arm and the L-shaped clamping arm are hinged to form a rhomboid clamping structure. The rhomboid structure is self-tightened by the self-weight of the rail steel. The greater the load, the stronger the clamping force. Compared with traditional strapping and ordinary claws, the clamping reliability is significantly improved, and the safety risk of the rail steel slipping and falling during hoisting is effectively avoided.

[0016] 3. In this invention, the telescopic rod relies on the telescopic cooperation of the hollow rod and the movable rod, and the locking structure of the first screw, which can flexibly adjust the installation distance of the two sets of clamping structures, adapt to the clamping and fixing of rail steel of different lengths and models, and the device has stronger versatility.

[0017] 4. This invention eliminates the need for large cranes in confined construction areas. The rail lifting operation can be completed using a vehicle-mounted worm gear and hand-cranked lifting mechanism, saving the heavy manpower required for manual lifting and avoiding the risk of rails falling due to imbalanced force applied manually. The lifting components can slide along the chassis groove to finely adjust the lifting position. The third screw drives the pressure block friction locking unit to lock the position of the lifting components. Shock absorbers buffer road bumps during vehicle movement, preventing damage to the rails. Connecting parts are quickly assembled and disassembled via pin insertion. The clamping mechanism and lifting components are easy to assemble and disassemble, effectively shortening the operation time for rail transport and laying, and improving overall construction efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the rail steel transport device described in this invention; Figure 2 This is a schematic diagram of the transport vehicle structure of the rail steel transport device described in this invention; Figure 3 This is a cross-sectional view of the rail steel transport device described in this invention; Figure 4 This is an exploded view of the lifting assembly of the rail steel transport device described in this invention; Figure 5 Appendix to this invention Figure 1 Enlarged view of point A in the middle; Figure 6 Appendix to this invention Figure 3 Enlarged view of point B in the middle; Figure 7 Appendix to this invention Figure 3 Enlarged diagram of point C in the middle.

[0019] In the picture: 1. Retaining ring; 2. Telescopic rod; 21. Hollow rod; 22. First screw; 23. Movable rod; 24. Hollow cylinder; 3. Connecting ring; 4. Movable arm; 5. Clamping arm; 6. Connector; 61. Movable ring; 62. First through hole; 63. Fixing cylinder; 7. Transport vehicle; 71. Frame; 72. Shock absorber; 73. Moving wheel; 74. Slide rail; 75. Lifting assembly; 751. Housing; 752. Cover plate; 753. Roller; 754. Second perforation; 755. Worm gear; 756. Worm; 757. Second screw; 7571. Guide groove; 758. Third screw; 759. Pressure block; 76. Sliding block. Detailed Implementation

[0020] 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 a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. 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.

[0021] Please see Figures 1-7 This invention discloses a rail steel transport device, comprising: a fixed ring 1 and a transport vehicle 7. A connecting ring 3 is movably sleeved on the top of the fixed ring 1, and the connecting ring 3 is connected to the transport vehicle 7 via a connector 6. A telescopic rod 2 is installed on the fixed ring 1, which is used to connect adjacent fixed rings 1. A first screw 22 is installed on the telescopic rod 2, which is used to lock the length of the telescopic rod 2. Movable arms 4 are hinged to both sides of the fixed ring 1. Clamping arms 5 are hinged to the bottom of the movable arms 4, and the two clamping arms 5 are hinged to each other, so that the hinge point of the movable arms 4 and the clamping arms 5 forms a rhomboid structure. The clamping arms 5 are L-shaped. The movable arms 4, the clamping arms 5 and the fixed ring 1 form a clamping structure.

[0022] In practice, the clamping arms 5 are moved apart, causing the rhomboid structure to deform laterally. Then, the clamping arms 5 are clamped onto the outside of the rail steel. At least two sets of clamping structures are used to clamp and fix the rail steel. The two sets of clamping structures are connected and fixed by the telescopic rod 2 to form an integral structure. When two sets of clamping structures are used, the clamping structures are located at both ends of the rail steel. Then, the lifting rope is passed through the inside of the connecting ring 3 and wrapped and fixed. Then, the other side of the lifting rope is wrapped and fixed to the hook. Finally, the lifting operation is carried out. At this time, the two ends of the rail steel are subjected to force to prevent the rail steel from tilting or shifting during the lifting process. At the same time, during the lifting process, the weight of the rail steel is downward. At this time, the rhomboid structure on the clamping arm 5 is pulled to make vertical deformation, which increases the clamping force of the clamping arm 5 and improves the clamping stability.

[0023] In one embodiment, the telescopic rod 2 includes a hollow rod 21, with movable rods 23 slidably installed at both ends of the hollow rod 21. The movable rods 23 have a circular cross-section and move axially along the interior of the hollow rod 21. A first screw 22 is threadedly installed at both ends of the hollow rod 21. Hollow cylinders 24 are welded and fixed on both sides of the fixed ring 1, and the ends of the movable rods 23 are threadedly engaged with the hollow cylinders 24. The length of the entire telescopic rod 2 is adjusted by moving the movable rods 23 along the hollow rod 21. Then, by rotating the movable rods 23, the movable rods 23 are assembled inside the hollow cylinders 24 to connect adjacent fixed rings 1. After adjustment, the movable rods 23 are locked and fixed by the first screw 22. At this time, the adjacent fixed rings 1 form an integral structure, which facilitates clamping and fixing the ends of rail steel of different lengths and prevents the rail steel from shifting during hoisting.

[0024] In one embodiment, the transport vehicle 7 includes a frame 71. At the bottom of the frame 71, a moving wheel 73 is fixedly installed with bolts via a shock absorber 72. The moving wheel 73 is used for the movement of the frame 71, and the shock absorber 72 provides shock absorption during the movement. A slider 76 is slidably installed on the top of the frame 71 via a groove 74. The slider 76 slides along the groove 74. A lifting assembly 75 is installed on the top of the slider 76. The lifting assembly 75 moves with the slider 76 and is used to lift the rail steel.

[0025] Specifically, the lifting assembly 75 includes a housing 751, which is welded and fixed to the top of the slider 76; a roller 753 is installed on the housing 751 through a through slot, with the bottom of the roller 753 closely attached to the top of the frame 71; a fixing unit is installed on the housing 751 to fix the position of the housing 751 on the frame 71; a cover plate 752 is fixed to the top of the housing 751 by bolts; and a worm gear 755 is rotatably installed inside the housing 751 via a bearing. A worm gear 756 is installed, which meshes with a worm wheel 755. A connecting shaft is welded to one end of the worm gear 756 and extends to the outside of the housing 751. A rocker arm is bolted to the free end of the connecting shaft and is used to manually rotate the worm gear 756. A second screw 757 is installed at the center of the worm wheel 755 through a screw hole. The top of the second screw 757 moves through the cover plate 752, and the bottom of the second screw 757 moves through the bottom of the housing 751. A second through hole 754 is opened at the bottom side of the second screw 757.

[0026] Specifically, the fixing unit includes a third screw 758, which is mounted on the housing 751 through a screw hole. A rocker arm is welded to the top of the third screw 758 for rotating the third screw 758. A pressure block 759 is welded to the bottom of the third screw 758. After the housing 751 moves to the target position with the slider 76, the third screw 758 is rotated, causing the third screw 758 to drive the pressure block 759 to move upward until the pressure block 759 presses against the outer surface of the frame 71, thus fixing the position of the housing 751 by friction.

[0027] Specifically, a guide groove 7571 is provided on the side of the second screw 757. The contact surface between the cover plate 752 and the second screw 757 is embedded in the guide groove 7571 to prevent the second screw 757 from rotating. By rotating the worm gear 756, the worm wheel 755 is driven to rotate, and the second screw 757 cannot rotate, thereby causing the second screw 757 and the worm wheel 755 to rotate relative to each other. The second screw 757 moves axially along the worm wheel 755.

[0028] In one embodiment, the connector 6 includes a movable ring 61, which is movably sleeved on the outside of the connecting ring 3; a fixed cylinder 63 is welded and fixed to the top of the connecting ring 3; first through holes 62 are symmetrically opened on the fixed cylinder 63; after the clamping arm 5 is clamped on the outside of the rail steel, the bottom of the second screw 757 is inserted into the inside of the fixed cylinder 63, so that the first through hole 62 and the second through hole 754 are aligned, and then the pin is passed through the first through hole 62 and the second through hole 754, so that the second screw 757 is fixed inside the fixed cylinder 63, and then the second screw 757 is moved upward to lift the rail steel.

[0029] Working principle: When the rail steel needs to be hoisted, the clamping arms 5 are moved apart, causing the rhomboid structure to deform laterally. Then, the clamping arms 5 are clamped onto the outside of the rail steel. At least two sets of clamping structures are used to clamp and fix the rail steel. The two sets of clamping structures are connected and fixed by the telescopic rod 2 to form an integral structure. When two sets of clamping structures are used, the clamping structures are located at both ends of the rail steel. Then, the lifting rope is passed through the inside of the connecting ring 3 and wrapped and fixed. Then, the other side of the lifting rope is wrapped and fixed to the hook. Finally, the hoisting operation is carried out. At this time, the two ends of the rail steel are subjected to force to prevent the rail steel from tilting or shifting during the hoisting process. At the same time, during the hoisting process, the weight of the rail steel is downward, which pulls the rhomboid structure on the clamping arm 5 to make vertical deformation, thereby increasing the clamping force of the clamping arm 5 and improving the clamping stability. When the rail steel needs to be moved in small spaces such as tunnels or bridge openings, the bottom of the second screw 757 is inserted into the fixed cylinder 63, aligning the first through hole 62 with the second through hole 754. Then, the pin is passed through the first through hole 62 and the second through hole 754 to fix the second screw 757 inside the fixed cylinder 63. Similarly, the clamping arm 5 is clamped on the outside of the rail steel. Then, the worm 756 is rotated, which drives the worm wheel 755 to rotate. The second screw 757 cannot rotate, thus causing the second screw 757 and the worm wheel 755 to rotate relative to each other. The second screw 757 moves axially along the worm wheel 755 to lift the clamped rail steel. Then, the third screw 758 is rotated, which drives the pressure block 759 to move upward until the pressure block 759 presses against the outer surface of the frame 71. The position of the outer shell 751 is fixed by friction, ensuring that the outer shell 751 is in a stable state when the frame 71 moves. Then, the frame 71 is pushed to move until the rail steel moves to the destination position. Then slide the slider 76 along the slide 74 to adjust the position of the lifting assembly 75 until the rail steel moves directly above the laying point. Then rotate the worm gear 756 in the opposite direction to make the rail steel move downward for laying. After completion, release the lock of the clamping arm 5.

[0030] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0032] Additionally, "multiple" refers to two or more.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rail steel transport device, characterized in that, It includes a fixed ring (1) and a transport vehicle (7); a connecting ring (3) is movably installed at the top of the fixed ring (1), and the connecting ring (3) is connected to the transport vehicle (7) through a connector (6); The fixed ring (1) is provided with a telescopic rod (2), which is used for docking assembly between adjacent fixed rings (1). The telescopic rod (2) is equipped with a first screw (22) for locking the telescopic stroke. The fixed ring (1) has movable arms (4) hinged on both sides. The lower end of the movable arm (4) is hinged to a clamping arm (5). The clamping arms (5) are hinged to each other in pairs, so that the hinge points of the movable arm (4) and the clamping arm (5) form a rhombus structure. The clamping arm (5) is designed with an L-shaped structure. The fixed ring (1), the movable arm (4) and the clamping arm (5) cooperate to form a single clamping structure.

2. The rail steel transport device according to claim 1, characterized in that, The telescopic rod (2) includes a hollow rod (21), and movable rods (23) are slidably mounted on both ends of the hollow rod (21); the first screw (22) is threadedly mounted on the hollow rod (21); hollow cylinders (24) are fixed on both sides of the fixing ring (1), and the end of the movable rod (23) is threadedly locked to the inside of the hollow cylinder (24).

3. The rail steel transport device according to claim 1, characterized in that, The transport vehicle (7) includes a frame (71), with a motion wheel (73) mounted on the bottom of the frame (71) via a shock absorber (72); a slider (76) is slidably mounted on the top of the frame (71) via an opening groove (74); and a lifting assembly (75) is mounted on the top of the slider (76).

4. The rail steel transport device according to claim 3, characterized in that, The lifting assembly (75) includes a housing (751) fixed to the upper end of the slider (76); a roller (753) is mounted on the housing (751) through a through groove, and the lower end face of the roller (753) abuts against the top surface of the frame (71); a fixing unit for locking the position of the housing (751) is installed on the housing (751); a cover plate (752) is installed on the top of the housing (751); a worm gear (755) and a worm (756) are rotatably installed in the inner cavity of the housing (751), and the worm gear (755) and the worm (756) mesh with each other; a second screw (757) is installed at the center of the worm gear (755), and a second through hole (754) is opened on the lower side wall of the second screw (757).

5. The rail steel transport device according to claim 4, characterized in that, The top of the second screw (757) moves through the cover plate (752), and the bottom of the second screw (757) moves through the bottom of the outer shell (751).

6. The rail steel transport device according to claim 4, characterized in that, The fixing unit includes a third screw (758), which is mounted on the outer casing (751). A rocker arm is mounted on the top of the third screw (758), and a pressure block (759) is mounted on the bottom of the third screw (758).

7. The rail steel transport device according to claim 4, characterized in that, The second screw (757) has a guide groove (7571) on its side. The contact surface between the cover plate (752) and the second screw (757) is embedded in the guide groove (7571) to prevent the second screw (757) from rotating.

8. The rail steel transport device according to claim 1, characterized in that, The connector (6) includes a movable ring (61), which is movably sleeved on the outside of the connecting ring (3); a fixed cylinder (63) is installed on the top of the connecting ring (3); and a first through hole (62) is symmetrically opened on the fixed cylinder (63).

9. The rail steel transport device according to claim 2, characterized in that, The movable rod (23) has a circular cross-section, allowing it to rotate inside the hollow rod (21).

10. The rail steel transport device according to claim 4, characterized in that, One end of the worm gear (756) extends to the outside of the housing (751) via a connected shaft, and a rocker arm is installed at the free end of the connected shaft.

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