Safety alignment device for lightweight steel ring splicing equipment

Abstract

This application provides a safety alignment device for lightweight steel ring splicing equipment, relating to the field of tunnel engineering. It includes: a first connecting plate with a first mounting interface; a second connecting plate with a second mounting interface on its side away from the first connecting plate; an intermediate connecting plate disposed between the first and second connecting plates; an angle adjustment mechanism installed between the first and intermediate connecting plates, used to drive the intermediate connecting plate to rotate relative to the first connecting plate around a first axis, the first axis being perpendicular to the surface of the first connecting plate; a flexible connection mechanism for connecting the intermediate connecting plate and the second connecting plate, allowing the second connecting plate to float relative to the intermediate connecting plate; and a locking mechanism installed on the intermediate connecting plate, having a locked state and an unlocked state. This device balances handling stability and installation alignment efficiency, effectively improving the fit quality of the steel ring pieces and enhancing construction safety.

Description

Technical Field

[0001] This application relates to the field of tunnel engineering technology, and in particular to a safety alignment device for lightweight steel ring splicing equipment. Background Technology

[0002] In subway tunnel structural reinforcement and repair projects, steel ring segments (or steel ring reinforcement components) are often used to circumferentially constrain and reinforce existing shield tunnel segments. Due to limitations such as narrow tunnel cross-sections, limited working faces, and short construction windows (mostly during non-operational nighttime hours), the transportation, hoisting, alignment, and fitting installation of steel ring segments typically rely on lightweight telescopic boom equipment, track-walking equipment, or small lifting devices in conjunction with specialized clamping fixtures. Under these conditions, the weight of a single steel ring segment is relatively heavy, placing higher demands on the load-bearing capacity, stability, and safety redundancy of the boom-end connection structure, while also imposing more stringent requirements on the ability to fine-tune the posture during the installation phase.

[0003] In existing technologies, the ends of telescopic booms and steel ring clamps / connectors often employ rigid flange connections, semi-rigid pin connections, or simplified single-degree-of-freedom hinged structures to ensure overall rigidity and anti-sway capability during hoisting. However, when the steel ring is pushed into the installation point and contacts the inner wall of the segment or the preset installation reference, factors such as structural dimensional deviations, uneven installation surfaces, and telescopic boom positioning errors commonly exist on site. These factors necessitate small-angle adaptive adjustments to the steel ring in pitch, tilt, and other attitude directions. The aforementioned rigid or low-degree-of-freedom connection methods struggle to absorb assembly errors while maintaining load-bearing stability, easily leading to problems such as insufficient fit of the steel ring end faces, misalignment of bolt holes, sudden increases in pushing resistance, and even jamming. These issues often require manual prying, repeated lifting and lowering, and multiple corrections, resulting in low construction efficiency and high safety risks.

[0004] Furthermore, the steel ring segments are heavy and have high inertia. If the boom-end connection structure lacks flexibility, buffering, and error release capabilities, it is prone to generating large collision loads during alignment or accidental contact. This can not only damage the steel ring segments, tubular segments, or auxiliary components, but also cause equipment overload, increased boom-end vibration, and safety hazards for workers. Therefore, there is an urgent need for a boom-end connection and attitude adjustment structure that can provide sufficient load-bearing stiffness and stable support during the hoisting phase, and can adaptively mitigate pitch / tilt and other directional errors during the installation and fitting phase, thereby improving the alignment efficiency, fitting quality, and construction safety of the steel ring segments. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a safety alignment device for lightweight steel ring splicing equipment.

[0006] The safety alignment device for lightweight steel ring splicing equipment provided in this application adopts the following technical solution:

[0007] Safety alignment devices for lightweight steel ring splicing equipment include:

[0008] The first connecting plate has a first mounting interface;

[0009] The second connecting plate has a second mounting interface on the side away from the first connecting plate;

[0010] An intermediate connecting plate is disposed between the first connecting plate and the second connecting plate;

[0011] An angle adjustment mechanism is installed between the first connecting plate and the intermediate connecting plate to drive the intermediate connecting plate to rotate relative to the first connecting plate around a first axis, wherein the first axis is perpendicular to the surface of the first connecting plate.

[0012] A flexible connecting mechanism is used to connect the intermediate connecting plate and the second connecting plate, so that the second connecting plate is relatively displaced in at least one direction relative to the intermediate connecting plate and swings relatively about at least one axis, so as to compensate for the posture error during the alignment and bonding process.

[0013] A locking mechanism is installed on the intermediate connecting plate and has a locked state and an unlocked state;

[0014] When the locking mechanism is in the locked state, it restricts the relative displacement and / or relative oscillation of the second connecting plate relative to the intermediate connecting plate; when the locking mechanism is in the unlocked state, it releases the restriction on the relative displacement and / or relative oscillation.

[0015] Furthermore, the angle adjustment mechanism includes an adjusting bearing, a guide assembly, and a drive assembly. The adjusting bearing and the guide assembly are spaced apart on the first connecting plate. The axis of the adjusting bearing is the first axis. The outer ring of the adjusting bearing is fixedly connected to the first connecting plate, and the inner ring of the adjusting bearing is fixedly connected to the intermediate connecting plate. The guide assembly is used to guide the rotation of the intermediate connecting plate, and the drive assembly is used to drive the intermediate connecting plate to rotate around the first axis.

[0016] Furthermore, the guiding assembly includes an arc-shaped slider mounted on the first connecting plate and an arc-shaped guide rail mounted on the intermediate connecting plate. The centers of the arc-shaped slider and the arc-shaped guide rail are both located on the first axis. A guide groove is provided on the arc-shaped guide rail, and the arc-shaped slider is at least partially embedded in the guide groove and slides along the guide groove.

[0017] Furthermore, the drive assembly includes a first gear, a second gear, and a drive motor. The first gear is coaxially and fixedly connected to the outer ring of the adjusting bearing. The second gear is rotatably mounted on the intermediate connecting plate and is always meshed with the first gear. The drive motor is mounted on the intermediate connecting plate and is used to drive the second gear to rotate. The diameter of the second gear is smaller than the diameter of the first gear.

[0018] Furthermore, the flexible connection mechanism includes a telescopic rod and an elastic component. The telescopic rod extends and retracts along a first axis, with one end hinged to a middle connecting plate ball and the other end hinged to a second connecting plate ball. The elastic component provides elastic force along the first axis to drive the telescopic rod to fully extend. Multiple sets of the telescopic rod and the elastic component are distributed.

[0019] Furthermore, the telescopic rod includes a movable rod and a cylinder. One end of the movable rod is hinged to a central connecting plate ball, and the other end is slidably disposed within the cylinder. The end of the cylinder away from the movable rod is hinged to a second connecting plate ball. A plurality of limiting blocks are provided around the periphery of the telescopic rod. The side wall of the cylinder has limiting grooves with the same number of limiting blocks. The limiting grooves are arranged along the first axis direction. The limiting blocks are at least partially embedded in the limiting grooves and slide along the limiting grooves.

[0020] Furthermore, the telescopic rod is provided in three sets, and the three sets of telescopic rods are distributed in a triangular pattern.

[0021] Furthermore, the elastic component includes a first mounting plate, a second mounting plate, and a compression spring. The first mounting plate and the second mounting plate are fixedly connected to the intermediate connecting plate and the second connecting plate, respectively. The two ends of the compression spring abut against or connect to the first mounting plate and the second mounting plate, respectively.

[0022] Furthermore, the locking mechanism includes two locking blocks and a locking drive. The two locking blocks are slidably disposed between the intermediate connecting plate and the second connecting plate in a direction perpendicular to the first axis. The length of the locking blocks in the direction of the first axis is equal to the distance between the intermediate connecting plate and the second connecting plate when the telescopic rod is extended to its maximum length.

[0023] Furthermore, the locking drive includes a locking bracket, a locking slider, a bidirectional screw, and a locking motor. The locking bracket is mounted on an intermediate connecting plate. There are two locking sliders, and the locking block is fixed on the locking slider. The locking slider is slidably connected to the locking bracket in a direction perpendicular to the first axis. The bidirectional screw is rotatably mounted on the locking bracket. Both ends of the bidirectional screw are provided with threaded sections with opposite directions. The two locking sliders are respectively threaded to both ends of the bidirectional screw. The locking motor is mounted on the locking bracket and is used to drive the bidirectional screw to rotate.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By setting a flexible connection mechanism between the intermediate connecting plate and the second connecting plate, and providing two states of locking / unlocking by a locking mechanism: during the handling and movement stage, the relative displacement and relative swing of the second connecting plate are restricted, so that the steel ring plate maintains a stable posture and reduces the risk of shaking and inertial impact; during the alignment and fitting stage, the restriction is released, so that the second connecting plate generates relative displacement and swing under the action of the flexible connection mechanism to absorb posture errors, thereby reducing the probability of jamming, collision and repeated lifting and lowering adjustments, and improving the installation success rate and operational safety margin;

[0026] 2. The angle adjustment mechanism drives the intermediate connecting plate to rotate around the first axis perpendicular to the surface of the first connecting plate, so that the second mounting interface (and thus the steel ring) can obtain the azimuth angle adjustment capability; in conjunction with the guide assembly and the drive assembly, continuous and controllable rotation adjustment can be realized, which facilitates the rapid completion of coarse and fine alignment in narrow tunnel spaces, reduces the reliance on manual prying and repeated micro-movement, and improves work efficiency.

[0027] 3. The flexible connection mechanism allows the second connecting plate to move relative to each other and swing relative to each other. It can passively compensate for the inconsistency in posture caused by unevenness of the installation surface, hole deviation, positioning error, etc. when the steel ring is pushed into the installation point. At the same time, it can achieve a certain buffer and reset by means of the elastic force of the elastic component, reduce the impact load caused by hard collision, and reduce the impact damage to the steel ring, tube and auxiliary components.

[0028] 4. The device can be quickly connected to the equipment actuator and steel ring (or its clamping / connecting parts) through the first and second installation interfaces. The whole device is integrated as a functional module of the boom end, which makes it easy to replace the connecting parts, adjust the layout or upgrade the drive mode according to different steel ring sizes and operation requirements, thereby reducing on-site modification and maintenance costs and improving versatility and scalability. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram illustrating the usage state of an embodiment of this application.

[0031] Figure 2 This is a schematic diagram of the connecting telescopic mechanism and the steel ring plate according to an embodiment of this application.

[0032] Figure 3 This is a schematic diagram of the overall structure of an embodiment of this application.

[0033] Figure 4 This is a schematic diagram of the overall structure of the angle adjustment mechanism in an embodiment of this application.

[0034] Figure 5 This is a schematic diagram of the structure of the guide component in an embodiment of this application.

[0035] Figure 6 This is a schematic diagram of the overall structure of the flexible connection mechanism according to an embodiment of this application.

[0036] Figure 7 This is an exploded view of the telescopic rod according to an embodiment of this application.

[0037] Figure 8 This is a schematic diagram of the locking mechanism according to an embodiment of this application.

[0038] Figure 9 This is a schematic diagram of the locking state of the locking mechanism in an embodiment of this application.

[0039] Figure 10 This is a schematic diagram of the unlocked state of the locking mechanism in an embodiment of this application.

[0040] Reference numerals: 1. Telescopic mechanism; 2. Steel ring; 3. First connecting plate; 31. First mounting interface; 4. Second connecting plate; 41. Second mounting interface; 5. Intermediate connecting plate; 6. Angle adjustment mechanism; 61. Adjusting bearing; 611. Outer ring; 612. Inner ring; 62. Guide assembly; 621. Arc-shaped guide rail; 622. Arc-shaped slider; 63. Drive assembly; 631. First gear; 632. Second gear; 633. Drive motor; 7. Flexible connection mechanism; 71. Telescopic rod; 711. Movable rod; 712. Cylinder; 713. Limiting block; 714. Limiting groove; 72. Elastic assembly; 721. First mounting plate; 722. Second mounting plate; 723. Compression spring; 8. Locking mechanism; 81. Locking block; 82. Locking drive; 821. Locking bracket; 822. Locking slider; 823. Bidirectional screw; 824. Locking motor. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0042] Reference Figures 1-3This embodiment discloses a safety alignment device for lightweight steel ring splicing equipment, applied between the actuator of the telescopic mechanism 1 and the steel ring 2. It provides a rigid and stable connection during the handling of the steel ring 2 and provides compliance error compensation capability during the alignment and fitting stage. The overall compliant alignment device includes a first connecting plate 3, a second connecting plate 4, an intermediate connecting plate 5, an angle adjustment mechanism 6, a flexible connection mechanism 7, and a locking mechanism 8. The angle adjustment mechanism 6 drives the intermediate connecting plate 5 to rotate relative to the first connecting plate 3 around a first axis. The flexible connection mechanism 7 connects the intermediate connecting plate 5 and the second connecting plate 4 to generate relative displacement and relative oscillation. The locking mechanism 8 switches between a locked state and an unlocked state to restrict or release the degree of freedom of the flexible connection.

[0043] Specifically, to achieve rapid docking with the telescopic mechanism 1 and the steel ring plate 2, a first mounting interface 31 is provided on the first connecting plate 3, and a second mounting interface 41 is provided on the second connecting plate 4. The first mounting interface 31 is used for fixed connection with the arm end or its end connector of the telescopic mechanism 1, and the second mounting interface 41 is used for fixed connection with the body of the steel ring plate 2 or its clamping / connecting parts. In the actual structure, both the first mounting interface 31 and the second mounting interface 41 can adopt a bolt hole array, flange, pin hole + bolt combination positioning structure or quick-change connection structure, so that the whole device is integrated as an arm end functional module, which is convenient for on-site replacement or maintenance. As a result, the time consumption and safety risks caused by repeated manual prying and moving can be reduced in the confined space of the tunnel, and the versatility and scalability can be improved.

[0044] Reference Figure 1 and Figure 3 Angle adjustment mechanism 6 is installed between the first connecting plate 3 and the intermediate connecting plate 5. It is used to drive the intermediate connecting plate 5 to rotate relative to the first connecting plate 3 around the first axis, and the first axis is perpendicular to the plate surface of the first connecting plate 3, so that the second connecting plate 4 connected to the intermediate connecting plate 5 can obtain the azimuth angle adjustment capability, thereby adjusting the azimuth angle of the steel ring plate 2.

[0045] In this embodiment, as Figure 4 As shown, the angle adjustment mechanism 6 includes an adjusting bearing 61, a guide assembly 62, and a drive assembly 63. The axis of the adjusting bearing 61 is the first axis. The outer ring 611 of the adjusting bearing 61 is fixedly connected to the first connecting plate 3, and the inner ring 612 of the adjusting bearing 61 is fixedly connected to the intermediate connecting plate 5, thereby enabling the intermediate connecting plate 5 to rotate relative to the first axis while ensuring load-bearing capacity and coaxiality.

[0046] Reference Figure 4 and Figure 5To improve the guiding stability and suppress sway during rotation, a guiding assembly 62 is disposed between the first connecting plate 3 and the intermediate connecting plate 5. It includes an arc-shaped slider 622 mounted on the first connecting plate 3 and an arc-shaped guide rail 621 mounted on the intermediate connecting plate 5. The centers of both the arc-shaped slider 622 and the arc-shaped guide rail 621 are located on the first axis. A guide groove is formed on the arc-shaped guide rail 621, and the arc-shaped slider 622 is at least partially embedded in the guide groove and slides along the guide groove, thereby constraining and guiding the rotation trajectory of the intermediate connecting plate 5 around the first axis. Thus, under the condition of bearing the steel ring 2, the rotational posture remains stable, reducing the risk of vibration and jamming caused by clearance and off-center load.

[0047] Further, see Figure 4 As shown, the drive assembly 63 includes a first gear 631, a second gear 632, and a drive motor 633. The first gear 631 is coaxially and fixedly connected to the outer ring 611 of the adjusting bearing 61. The second gear 632 is rotatably mounted on the intermediate connecting plate 5 and is always meshed with the first gear 631. The drive motor 633 is mounted on the intermediate connecting plate 5 to drive the second gear 632 to rotate, and the diameter of the second gear 632 is smaller than the diameter of the first gear 631. Through the meshing relationship of the pinion and gear described above, a larger equivalent output torque and better adjustment accuracy can be obtained in a confined space, facilitating rapid on-site completion of coarse and fine alignment, reducing reliance on repeated manual fine adjustments, and improving work efficiency.

[0048] Reference Figure 1 and Figure 6 The flexible connecting mechanism 7 connects the intermediate connecting plate 5 and the second connecting plate 4, allowing the second connecting plate 4 to undergo relative displacement in at least one direction relative to the intermediate connecting plate 5 and to swing relative to each other around at least one axis, thereby compensating for posture errors during the alignment and bonding process. In other words, as the steel ring 2 is pushed into the installation point and contacts the installation surface, the flexible connecting mechanism 7 allows the second connecting plate 4 to produce controlled "micro-floating + swaying" to passively absorb posture inconsistencies caused by unevenness of the installation surface, hole deviation, positioning errors, etc. This avoids the impact load caused by "hard-on-hard" docking, reduces collision damage to the steel ring 2, existing segments and surrounding auxiliary components, and improves bonding success rate and safety.

[0049] In this embodiment, the flexible connection mechanism 7 includes a telescopic rod 71 and an elastic component 72. The telescopic rod 71 extends and retracts along a first axis, with one end ball-jointed to the intermediate connecting plate 5 and the other end ball-jointed to the second connecting plate 4. The elastic component 72 provides elastic force along the first axis, driving the telescopic rod 71 to fully extend, and multiple sets of both the telescopic rod 71 and the elastic component 72 are provided. Through the ball-joint connection, the two ends of the telescopic rod 71 can automatically adjust the included angle according to the posture change of the second connecting plate 4, thereby providing a multi-degree-of-freedom error adaptive space while maintaining the continuity of the bearing path.

[0050] Further, see Figure 7 As shown, the telescopic rod 71 includes a movable rod 711 and a cylinder 712. One end of the movable rod 711 is ball-hinged with the intermediate connecting plate 5, and the other end is slidably disposed within the cylinder 712. The end of the cylinder 712 away from the movable rod 711 is ball-hinged with the second connecting plate 4. To limit the rotation of the movable rod 711 relative to the cylinder 712 and guide the telescopic stroke, several limiting blocks 713 are provided on the periphery of the telescopic rod 71. The side wall of the cylinder 712 has limiting grooves 714, the number of which is the same as the number of limiting blocks 713. The limiting grooves 714 are arranged along the first axis direction, and the limiting blocks 713 are at least partially embedded in the limiting grooves 714 and slide along the limiting grooves 714. Thus, the telescopic rod 71 has stronger guiding properties when telescopically extending under load, which can reduce the probability of uneven wear and jamming, and improve the controllability and reliability of the compliant alignment process.

[0051] In a preferred embodiment, such as Figure 6 As shown, three sets of telescopic rods 71 ​​are arranged in a triangular pattern. The triangular support has natural geometric stability under assembly errors and attitude changes, which can reduce the accumulation of internal forces and the risk of local jamming caused by over-constraint while ensuring compliance compensation. In alternative embodiments, four or more sets of telescopic rods 71 ​​can also be set to meet the conditions of greater load redundancy or higher torsional resistance requirements.

[0052] Furthermore, the elastic component 72 includes a first mounting plate 721, a second mounting plate 722, and a compression spring 723. The first mounting plate 721 and the second mounting plate 722 are fixedly connected to the intermediate connecting plate 5 and the second connecting plate 4, respectively. The two ends of the compression spring 723 abut against or connect to the first mounting plate 721 and the second mounting plate 722, respectively. Through the preload provided by the compression spring 723, the telescopic rod 71 tends to extend and form a "reset" tendency: when the alignment and fitting cause the second connecting plate 4 to produce relative displacement or relative swing, the compression spring 723 can provide buffering and rebound, so that the second connecting plate 4 returns to a position closer to the reference posture after the external force is released, thereby taking into account both flexible energy absorption and posture correction.

[0053] In a preferred embodiment, such as Figure 6As shown, five sets of elastic components 72 are arranged along the lateral width direction of the middle connecting plate 5 and the second connecting plate 4. Two sets of elastic components 72 are arranged on each side, and one set of elastic components 72 is arranged in the middle, so that the five sets of elastic components 72 are arranged in a symmetrical and centrally reinforced manner. Thus, on the one hand, the symmetrically arranged elastic components 72 on both sides can provide a more balanced return torque when the second connecting plate 4 has a pitching or tilting tendency, reducing the amplification of eccentric load and sway caused by excessive force on one side, making the compliant alignment process smoother and more controllable. Therefore, in the flexible bonding stage after the locking mechanism 8 is unlocked, it can effectively absorb the attitude error and avoid excessive rebound or delayed return, improving the bonding stability and alignment success rate. At the same time, the parallel connection of multiple sets of elastic components 72 to share the load also improves redundancy and reliability, and reduces the impact of fatigue or failure of a single set of elastic elements on the overall stability of the machine.

[0054] Reference Figures 8-10 The locking mechanism 8 is installed on the intermediate connecting plate 5 and has a locked state and an unlocked state: in the locked state, it is used to limit the relative displacement and / or relative swing of the second connecting plate 4 relative to the intermediate connecting plate 5; in the unlocked state, it is used to release the above restrictions, so that the flexible connecting mechanism 7 can play an error compensation role.

[0055] In this embodiment, the locking mechanism 8 includes two locking blocks 81 and a locking drive 82. The two locking blocks 81 are slidably disposed between the intermediate connecting plate 5 and the second connecting plate 4 along a direction perpendicular to the first axis, and the length of the locking blocks 81 along the first axis is equal to the distance between the intermediate connecting plate 5 and the second connecting plate 4 when the telescopic rod 71 is extended to its limit length. Thus, when the locking blocks 81 slide into the space between the intermediate connecting plate 5 and the second connecting plate 4, the relative displacement between the two plates along the first axis and the relative sway caused by the ball joint can be substantially suppressed, so that the second connecting plate 4 presents an approximately rigid connection effect during the handling stage, reducing the shaking of the steel ring plate 2 and improving the handling safety; and when the locking blocks 81 exit the gap, the second connecting plate 4 restores the controlled degree of freedom provided by the flexible connection mechanism 7, so as to achieve compliant alignment during the fitting stage.

[0056] Furthermore, the locking drive 82 includes a locking bracket 821, a locking slider 822, a bidirectional screw 823, and a locking motor 824. For example... Figure 8As shown, the locking bracket 821 is fixed to the intermediate connecting plate 5 by bolts or welding, and is a U-shaped plate with its opening facing downwards. The locking slider 822 is plate-shaped, with a groove on its top that matches the top cross-section of the locking bracket 821. It slides along the direction perpendicular to the first axis through the groove and is slidably connected to the locking bracket 821. Two locking sliders 822 are spaced apart, and the locking blocks 81 are fixed to the locking sliders 822. The bidirectional screw 823 is rotatably mounted on the locking bracket 821, with its axis perpendicular to the first axis. The two ends of the bidirectional screw 823 have threaded sections with opposite directions. The two locking sliders 822 are threadedly connected to the two ends of the bidirectional screw 823, respectively. The locking motor 824 is used to drive the bidirectional screw 823 to rotate. Through the reverse synchronous transmission of the bidirectional screw 823, the two locking blocks 81 can be symmetrically moved closer or further apart, thereby achieving stable switching between the locked and unlocked states.

[0057] Furthermore, in this embodiment, the end of the locking block 81 may be provided with an inlet chamfer or a guide bevel to improve the fault tolerance of insertion alignment and reduce the risk of edge jamming.

[0058] During the transport phase of the steel ring 2, the locking mechanism 8 is preferably in a locked state, which restricts the relative displacement / sway between the second connecting plate 4 and the intermediate connecting plate 5, thus making the whole machine exhibit a rigid connection, which facilitates the telescopic mechanism 1 to stably lift and smoothly move the steel ring 2. After reaching the target work position, in order to quickly complete the orientation alignment in the narrow tunnel space, the operator can drive the intermediate connecting plate 5 to rotate relative to the first connecting plate 3 around the first axis through the drive component 63, so as to achieve continuous and controllable adjustment of the azimuth angle of the steel ring 2; the guide component 62 guides and limits the trajectory of this rotation process, improving the smoothness and reliability of the adjustment.

[0059] During the alignment and bonding stage of the steel ring 2, the locking mechanism 8 switches to the unlocked state, releasing the restriction on the relative displacement / relative sway of the second connecting plate 4, allowing the flexible connecting mechanism 7 to function: when the telescopic mechanism 1 pushes the steel ring 2 towards the installation point, the second connecting plate 4 can generate controlled micro-displacement and sway under the cooperation of the ball joint of the telescopic rod 71 and the elastic component 72, achieving passive compensation for posture errors; at the same time, the elastic component 72 provides buffering and reset, reducing the impact load during the docking process and promoting the posture to return to normal. Thus, it is possible to switch between "handling rigidity" and "fitting flexibility" as needed, taking into account safety, alignment success rate, and construction efficiency.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A safety alignment device for lightweight steel ring splicing equipment, characterized in that, include: The first connecting plate has a first mounting interface; The second connecting plate has a second mounting interface on the side away from the first connecting plate; An intermediate connecting plate is disposed between the first connecting plate and the second connecting plate; An angle adjustment mechanism is installed between the first connecting plate and the intermediate connecting plate to drive the intermediate connecting plate to rotate relative to the first connecting plate around a first axis, wherein the first axis is perpendicular to the surface of the first connecting plate. A flexible connecting mechanism is used to connect the intermediate connecting plate and the second connecting plate, so that the second connecting plate is relatively displaced in at least one direction relative to the intermediate connecting plate and swings relatively about at least one axis, so as to compensate for the posture error during the alignment and bonding process. A locking mechanism is installed on the intermediate connecting plate and has a locked state and an unlocked state; When the locking mechanism is in the locked state, it restricts the relative displacement and / or relative oscillation of the second connecting plate relative to the intermediate connecting plate; when the locking mechanism is in the unlocked state, it releases the restriction on the relative displacement and / or relative oscillation. The angle adjustment mechanism includes an adjusting bearing, a guide assembly, and a drive assembly. The adjusting bearing and the guide assembly are spaced apart on the first connecting plate. The axis of the adjusting bearing is the first axis. The outer ring of the adjusting bearing is fixedly connected to the first connecting plate, and the inner ring of the adjusting bearing is fixedly connected to the intermediate connecting plate. The guide assembly is used to guide the rotation of the intermediate connecting plate, and the drive assembly is used to drive the intermediate connecting plate to rotate around the first axis. The flexible connection mechanism includes a telescopic rod and an elastic component. The telescopic rod extends and retracts along a first axis, with one end hinged to a middle connecting plate ball and the other end hinged to a second connecting plate ball. The elastic component is used to provide elastic force along the first axis to drive the telescopic rod to fully extend. Multiple sets of the telescopic rod and the elastic component are distributed. The locking mechanism includes two locking blocks and a locking drive. The two locking blocks are slidably disposed between the intermediate connecting plate and the second connecting plate in a direction perpendicular to the first axis. The length of the locking block in the direction of the first axis is equal to the distance between the intermediate connecting plate and the second connecting plate when the telescopic rod is extended to its limit length.

2. The safety alignment device for lightweight steel ring splicing equipment according to claim 1, characterized in that, The guiding assembly includes an arc-shaped slider mounted on the first connecting plate and an arc-shaped guide rail mounted on the intermediate connecting plate. The centers of the arc-shaped slider and the arc-shaped guide rail are both located on the first axis. A guide groove is provided on the arc-shaped guide rail. The arc-shaped slider is at least partially embedded in the guide groove and slides along the guide groove.

3. The safety alignment device for lightweight steel ring splicing equipment according to claim 1, characterized in that, The drive assembly includes a first gear, a second gear, and a drive motor. The first gear is coaxially and fixedly connected to the outer ring of the adjusting bearing. The second gear is rotatably mounted on the intermediate connecting plate and is always meshed with the first gear. The drive motor is mounted on the intermediate connecting plate and is used to drive the second gear to rotate. The diameter of the second gear is smaller than the diameter of the first gear.

4. The safety alignment device for lightweight steel ring splicing equipment according to claim 1, characterized in that, The telescopic rod includes a movable rod and a cylinder. One end of the movable rod is hinged to a central connecting plate ball, and the other end is slidably disposed inside the cylinder. The end of the cylinder away from the movable rod is hinged to a second connecting plate ball. A plurality of limiting blocks are provided on the periphery of the telescopic rod. The side wall of the cylinder has limiting grooves with the same number of limiting blocks. The limiting grooves are arranged along a first axis. The limiting blocks are at least partially embedded in the limiting grooves and slide along the limiting grooves.

5. The safety alignment device for lightweight steel ring splicing equipment according to claim 4, characterized in that, The telescopic rods are provided in three sets, and the three sets of telescopic rods are distributed in a triangle.

6. The safety alignment device for lightweight steel ring splicing equipment according to claim 1, characterized in that, The elastic component includes a first mounting plate, a second mounting plate, and a compression spring. The first mounting plate and the second mounting plate are fixedly connected to the intermediate connecting plate and the second connecting plate, respectively. The two ends of the compression spring abut against or connect to the first mounting plate and the second mounting plate, respectively.

7. The safety alignment device for lightweight steel ring splicing equipment according to claim 1, characterized in that, The locking drive includes a locking bracket, a locking slider, a bidirectional screw, and a locking motor. The locking bracket is mounted on an intermediate connecting plate. There are two locking sliders, and a locking block is fixed on the locking slider. The locking slider is slidably connected to the locking bracket in a direction perpendicular to the first axis. The bidirectional screw is rotatably mounted on the locking bracket. Both ends of the bidirectional screw are provided with threaded sections with opposite directions. The two locking sliders are respectively threaded to both ends of the bidirectional screw. The locking motor is mounted on the locking bracket and is used to drive the bidirectional screw to rotate.

Images