An integrated equipment for hoisting and assembling of fabricated steel bridge segments

Abstract

This invention provides an integrated hoisting and assembly equipment for prefabricated steel bridge segments, belonging to the field of prefabricated steel bridge construction machinery technology. It includes a transport vehicle, a worm gear motor, and a rotating arm. The output end of the worm gear motor is fixedly connected to the rotating arm, which is equipped with a support assembly. A rotating assembly with a worm gear motor is mounted on the top of the transport vehicle, and a rotating frame is mounted on top of the rotating assembly. Lifting assemblies are hinged to both sides of the rotating frame. An electric hoist is mounted on the top of the lifting assembly, and a clamping assembly is mounted on the bottom of the electric hoist. Guide assemblies are mounted on both sides of the clamping assembly. This invention uses the worm gear motor to drive the rotating arm to adjust its angle and the rotating frame to rotate horizontally. Combined with the extension and retraction of the lifting assembly's dual hydraulic cylinders, precise adjustment of the working height and amplitude is achieved. The clamping assembly clamps and fixes the steel bridge segments, the stabilizing assembly suppresses hoisting sway through damping limits, and the guide assemblies engage with the support frame to achieve precise alignment. The entire mechanism works in concert, fundamentally eliminating assembly deviations such as misalignment, uneven gaps, and angular offsets.

Description

Technical Field

[0001] This invention relates to the field of prefabricated steel bridge construction machinery technology, and in particular to an integrated equipment for hoisting and assembling prefabricated steel bridge segments. Background Technology

[0002] Prefabricated steel bridges are widely used in emergency rescue, temporary passage, and expressway construction projects due to their advantages of fast construction speed, high structural strength, and reusability. At present, the segmental construction of prefabricated steel bridges generally adopts a split construction mode, that is, after the steel bridge segments are hoisted into place by large cranes, the segments are assembled with the help of manual assistance in alignment, fine-tuning equipment, and fastening fixtures. The entire construction process relies on the coordinated operation of multiple pieces of equipment and precise manual operation. Existing construction equipment and processes have many inherent defects: First, the hoisting, alignment, fine-tuning, and fastening processes are completed independently in separate steps, requiring frequent switching of construction equipment and adjustment of work positions, resulting in poor construction continuity, low overall construction efficiency, and the occupation of a large amount of construction space by multiple equipment, making them unsuitable for restricted scenarios such as mountainous areas, narrow construction sites, and emergency rescue. Second, the alignment and assembly accuracy is poor; traditional hoisting equipment can only achieve coarse positioning, and problems such as misalignment, uneven gaps, and angle deviations exist when steel bridge segments are joined. Subsequent manual fine-tuning is time-consuming and labor-intensive, and assembly deviations are very likely to occur, affecting the overall load-bearing performance and service life of the steel bridge. Therefore, this invention proposes an integrated hoisting and assembly equipment for prefabricated steel bridge segments to solve the above problems. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes an integrated assembly and hoisting equipment for prefabricated steel bridge segments. This solves the problems of low efficiency, large footprint, and limited applicability in restricted scenarios caused by step-by-step processes in existing technologies; poor alignment accuracy due to rough positioning during hoisting; laborious manual fine-tuning; and assembly deviations affecting structural performance and lifespan.

[0004] To achieve the objectives of this invention, the following technical solution is provided: an integrated assembly and hoisting device for prefabricated steel bridge segments, comprising a transport vehicle, a worm gear motor, and a rotating arm. The transport vehicle has worm gear motors symmetrically arranged on both sides of its bottom and rotating arms symmetrically rotatably connected to both sides of its top. The output end of the worm gear motor is fixedly connected to the rotating arm, and the rotating arm is equipped with a support assembly. A rotating assembly with a worm gear motor is located on the top of the transport vehicle, and a rotating frame is located on top of the rotating assembly. Lifting assemblies are hinged to both sides of the rotating frame. An electric hoist is located at the top of the lifting assembly, and a clamping assembly and a stabilizing assembly are located at the bottom of the electric hoist. Guide assemblies are located on both sides of the clamping assembly. This integrated system achieves transfer, precise hoisting, and alignment assembly.

[0005] A further improvement is that the rotating assembly includes an annular groove, a rotating shaft, a connecting ring, and roller rods. The annular groove is fixed on the top of the transport vehicle. The output end of the worm gear motor in the annular groove is fixed to the rotating frame via the rotating shaft. The connecting ring is fixed to the outside of the rotating shaft. Multiple roller rods are hinged at equal intervals to the outside of the connecting ring. The bottom end of the roller rods is in contact with the inside of the annular groove.

[0006] Further improvements are made in that: the lifting assembly includes a telescopic outer rod, a first hydraulic cylinder, a second hydraulic cylinder, and a telescopic inner rod; the telescopic outer rod and the first hydraulic cylinder are symmetrically hinged on both sides of the rotating frame; the second hydraulic cylinder is fixedly connected to both sides of the telescopic outer rod, and telescopic support rods are matched on the sides of both; the telescopic inner rod is slidably connected to the inner side of the telescopic outer rod; the output end of the second hydraulic cylinder is fixedly connected to the top of the telescopic inner rod; and the output end of the first hydraulic cylinder is hinged to one side of the telescopic outer rod.

[0007] A further improvement is that the clamping assembly includes a rotating shaft, a connecting plate, a drive ring, a clamping arm, and a clamping block. The bottom end of the electric hoist is rotatably connected to the rotating shaft, the bottom end of the rotating shaft is fixedly connected to the connecting plate, the drive rings are symmetrically sleeved on both sides of the connecting plate, the bottom ends of the two drive rings are connected to the clamping arms that are staggered, the middle parts of the two clamping arms are hinged by a pin, and the bottom ends of the clamping arms are fixedly connected to the clamping block.

[0008] A further improvement is made in that: the guide assembly includes a movable outer rod, a movable inner rod, a slider, a hook, a tension spring, a connecting rod, a limiting hole, a miniature cylinder, and a limiting block. The bottom end of the clamping block is fixedly connected to the movable outer rod, the movable inner rod is slidably connected to the movable outer rod, the movable inner rod is hinged to the connecting rod, the connecting rod is hinged to the slider, the slider is hinged to the hook that can engage the support frame, the top of the hook is fixedly connected to the slider via a tension spring, both the slider and the movable outer rod are provided with limiting holes, the top of the movable outer rod is provided with a miniature cylinder, and its output end is fixedly connected to the limiting block that passes through the limiting hole.

[0009] Further improvements are made in that: the stabilizing component includes a housing, a track rod, a moving block, a lead screw, a rotary motor, a fixing hoist, and a damping block. The bottom end of the electric hoist is fixedly connected to the housing. The track rod is provided inside the housing. The moving block with the fixing hoist is slidably connected to the outside of the track rod. Symmetrical damping blocks are provided inside the housing and are fixedly connected to both sides of the fixing hoist. The fixing hoist clamps the outside of the rotating shaft. A rotary motor is provided outside the housing, and its output end is fixedly connected to a lead screw that is threadedly engaged with the moving block.

[0010] A further improvement is that the support assembly includes a No. 3 hydraulic cylinder, a pressure block, and a sliding rod. One end of the rotating arm is fixedly connected to the No. 3 hydraulic cylinder and symmetrically slidably connected to a set of sliding rods. The bottom end of the sliding rod is fixedly connected to the pressure block, and the output end of the No. 3 hydraulic cylinder is fixedly connected to the top of the pressure block.

[0011] Further improvements include: the roller rods are inclined, multiple roller rods are arranged in a ring array around the center of the connecting ring, and the bottom end of the roller rods is set as an arc-shaped fitting structure, which precisely fits and slides with the inner arc surface of the annular groove, ensuring the rotational stability of the rotating frame.

[0012] The beneficial effects of this invention are as follows: In terms of assembly accuracy and quality control, during construction, the No. 3 hydraulic cylinder drives the pressure block to the ground for support, ensuring the stability of the entire machine during operation; the worm gear motor drives the rotating arm to adjust the angle and the rotating frame to rotate horizontally, and in conjunction with the extension and retraction of the double hydraulic cylinders of the lifting component, the working height and amplitude can be precisely adjusted; the clamping component clamps and fixes the steel bridge segment, the stabilizing component suppresses the swaying of the hoisting through damping limit, and the guide component engages with the support frame to achieve precise alignment. The entire mechanism works in concert, replacing the traditional hoisting equipment's coarse positioning plus repeated manual fine-tuning operation mode, fundamentally eliminating assembly deviations such as misalignment, uneven gaps, and angle offset, reducing the intensity of manual labor, improving the docking accuracy of steel bridge segments and the overall stress performance, and effectively extending the service life of the steel bridge structure. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention; Figure 2 This is a diagram showing the hoisting state of the present invention; Figure 3 This is a diagram showing the hoisting position adjustment of the present invention; Figure 4 This is a schematic diagram of the guiding component structure of the present invention; Figure 5 This is a schematic diagram of the rotating component structure of the present invention; Figure 6 This is a schematic diagram of the stable component structure of the present invention; Figure 7 This is a schematic diagram of the support component structure of the present invention.

[0014] The components include: 1. Transport vehicle; 2. Worm gear motor; 3. Rotating arm; 4. Rotating assembly; 401. Annular groove; 402. Rotating shaft; 403. Connecting ring; 404. Roller rod; 5. Rotating frame; 6. Lifting assembly; 601. Telescopic outer rod; 602. Hydraulic cylinder No. 1; 603. Hydraulic cylinder No. 2; 604. Telescopic inner rod; 7. Electric hoist; 8. Clamping assembly; 801. Rotating shaft; 802. Connecting plate; 803. Drive ring; 804. Clamping arm; 805. Clamping block; 9. Guide assembly; 90 1. Moving outer rod; 902. Moving inner rod; 903. Slider; 904. Hook; 905. Tension spring; 906. Connecting rod; 907. Limiting hole; 908. Miniature cylinder; 909. Limiting block; 10. Stabilizing component; 1001. Housing; 1002. Track rod; 1003. Moving block; 1004. Lead screw; 1005. Rotary motor; 1006. Fixing clamp; 1007. Damping block; 11. Support component; 1101. Hydraulic cylinder No. 3; 1102. Pressure block; 1103. Sliding rod. Detailed Implementation

[0015] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0016] according to Figure 1-7 As shown in the figure, this embodiment proposes an integrated assembly and hoisting equipment for prefabricated steel bridge segments, including a transport vehicle 1, a worm gear motor 2, and a rotating arm 3. The worm gear motor 2 is symmetrically arranged on both sides of the bottom of the transport vehicle 1, and the rotating arm 3 is symmetrically rotatably connected to both sides of the top. The output end of the worm gear motor 2 is fixedly connected to the rotating arm 3, and the rotating arm 3 is provided with a support component 11. The top of the transport vehicle 1 is provided with a rotating component 4 with the worm gear motor 2, and the top of the rotating component 4 is provided with a rotating frame 5. The rotating frame 5 is hinged to both sides with lifting components 6, the top of the lifting component 6 is provided with an electric hoist 7, and the bottom of the electric hoist 7 is provided with a clamping component 8 and a stabilizing component 10. The clamping component 8 is provided with guide components 9 on both sides. The equipment integrates transportation, precise hoisting, and alignment assembly.

[0017] The transport vehicle 1 carries the entire machine structure to achieve overall equipment movement and complete the transfer of the construction site; the bottom worm gear motor 2 drives the rotating arm 3 to rotate and adjust the working angle, and the support component 11 provides stable working support; the rotating component 4 drives the rotating frame 5 to rotate and adjust horizontally, and the lifting component 6 adjusts the working height and working range; the electric hoist 7 provides hoisting and lifting power, the clamping component 8 clamps and fixes the steel bridge segment, the guide component 9 achieves precise alignment and limit, and the stabilizing component 10 suppresses hoisting sway. The whole machine integrates the functions of transfer, adjustment, clamping, alignment and assembly, replacing step-by-step operations and improving assembly accuracy and work efficiency.

[0018] The rotating assembly 4 includes an annular groove 401, a rotating shaft 402, a connecting ring 403, and roller rods 404. The annular groove 401 is fixed to the top of the transport vehicle 1. The output end of the worm gear motor 2 in the annular groove 401 is fixed to the rotating frame 5 via the rotating shaft 402. The connecting ring 403 is fixed to the outside of the rotating shaft 402. Multiple roller rods 404 are hinged at equal intervals to the outside of the connecting ring 403. The bottom end of the roller rods 404 is in contact with the inside of the annular groove 401.

[0019] The annular groove 401 provides a limiting track for the overall rotating structure. The worm gear motor 2 outputs power to drive the rotating shaft 402 to rotate, thereby driving the rotating frame 5 to rotate horizontally as a whole, realizing fine-tuning and alignment of the horizontal angle of the steel bridge segment. The rotating shaft 402 drives the connecting ring 403 to rotate synchronously. The roller rod 404 on the outer side of the connecting ring 403 rolls along the inner side of the annular groove 401 to provide auxiliary support and radial limiting for the rotating frame 5, offsetting the rotational eccentric stress and ensuring smooth and jam-free rotational operation.

[0020] The lifting assembly 6 includes a telescopic outer rod 601, a first hydraulic cylinder 602, a second hydraulic cylinder 603, and a telescopic inner rod 604. The telescopic outer rod 601 and the first hydraulic cylinder 602 are symmetrically hinged on both sides of the rotating frame 5. The second hydraulic cylinder 603 is fixedly connected to both sides of the telescopic outer rod 601, and telescopic support rods are matched on the sides of both. The telescopic inner rod 604 is slidably connected to the inner side of the telescopic outer rod 601. The output end of the second hydraulic cylinder 603 is fixedly connected to the top of the telescopic inner rod 604, and the output end of the first hydraulic cylinder 602 is hinged to one side of the telescopic outer rod 601.

[0021] Hydraulic cylinder 602 extends and retracts, driving the outer telescopic rod 601 to rotate and swing around the hinge point, adjusting the pitch angle and working radius of the overall hoisting operation; hydraulic cylinder 603 extends and retracts, driving the inner telescopic rod 604 to slide and extend along the inside of the outer telescopic rod 601, achieving precise fine-tuning of the hoisting height; a matching telescopic support rod provides auxiliary reinforcement to the telescopic structure, offsetting the bending stress generated by the hoisting load. The dual hydraulic drive structure works together to adapt to the hoisting and assembly needs of steel bridge segments of different heights and angles.

[0022] The clamping assembly 8 includes a rotating shaft 801, a connecting plate 802, a drive ring 803, a clamping arm 804, and a clamping block 805. The bottom end of the electric hoist 7 is rotatably connected to the rotating shaft 801, and the bottom end of the rotating shaft 801 is fixedly connected to the connecting plate 802. The drive rings 803 are symmetrically sleeved on both sides of the connecting plate 802. The bottom ends of the two drive rings 803 are connected to the clamping arms 804 that are staggered. The two clamping arms 804 are hinged at the middle with a pin, and the bottom end of the clamping arm 804 is fixedly connected to the clamping block 805.

[0023] The rotating shaft 801 can rotate freely to adapt to the multi-angle alignment requirements of the steel bridge segments and avoid structural torsion and jamming during hoisting. The connecting plate 802 serves as a load-bearing base to fix the drive ring 803. The drive ring 803 is driven by force to rotate the two sets of staggered hinged clamping arms 804 relative to each other around the central pin, realizing the opening and closing action of the clamping arms 804. The bottom clamping block 805 directly adheres to the surface of the steel bridge segment, increasing the clamping contact area and realizing the stable clamping of the steel bridge segment, preventing slippage and displacement during hoisting.

[0024] The guide assembly 9 includes a movable outer rod 901, a movable inner rod 902, a slider 903, a hook 904, a tension spring 905, a connecting rod 906, a limiting hole 907, a miniature cylinder 908, and a limiting block 909. The bottom end of the clamping block 805 is fixedly connected to the movable outer rod 901. The movable inner rod 902 is slidably connected to the movable outer rod 901. The movable inner rod 902 is hinged to the connecting rod 906. The connecting rod 906 is hinged to the slider 903. The slider 903 is hinged to the hook 904, which can engage the support frame. The top of the hook 904 is fixedly connected to the slider 903 via the tension spring 905. Both the slider 903 and the movable outer rod 901 are provided with limiting holes 907. The top of the movable outer rod 901 is provided with a miniature cylinder 908, the output end of which is fixedly connected to the limiting block 909 that passes through the limiting hole 907.

[0025] The inner movable rod 902 can slide along the outer movable rod 901, driving the connecting rod 906 to push and pull the slider 903 to adjust the extension length of the hook 904. The micro cylinder 908 drives the limiting block 909 to insert into the limiting hole 907, locking the relative position of the slider 903 and the outer movable rod 901 to prevent misalignment. The hook 904 remains in a close and tight state under the tension of the tension spring 905, and can be firmly locked on the steel bridge support frame to achieve pre-alignment and limiting. Then, the micro cylinder 908 drives the limiting block 909 to move upward to release the limiting. At this time, the transport vehicle 1 can drive the steel bridge segment to move along the length direction of the outer movable rod 901 to perform docking operations. When the pre-alignment and docking position of the steel bridge segment on the steel bridge support frame are offset, the slider 903 and the steel bridge segment are moved horizontally by the hinged connecting rod 906 to adjust the position and achieve auxiliary assembly. The hook 904 can be moved upward to disengage from the steel bridge support frame by the electric hoist 7.

[0026] The stabilizing component 10 includes a housing 1001, a track rod 1002, a moving block 1003, a lead screw 1004, a rotary motor 1005, a fixing hoist 1006, and a damping block 1007. The bottom end of the electric hoist 7 is fixedly connected to the housing 1001. The track rod 1002 is provided inside the housing 1001. The moving block 1003 with the fixing hoist 1006 is slidably connected to the outside of the track rod 1002. Symmetrical damping blocks 1007 are provided inside the housing 1001 and are fixedly connected to both sides of the fixing hoist 1006. The fixing hoist 1006 clamps the outside of the rotating shaft 801. The rotary motor 1005 is provided outside the housing 1001, and its output end is fixedly connected to the lead screw 1004, which is threadedly engaged with the moving block 1003.

[0027] The rotary motor 1005 drives the lead screw 1004 to rotate, which in turn drives the moving block 1003 to slide smoothly along the track rod 1002 through the threaded transmission, adjusting the position of the fixing hoist 1006. The fixing hoist 1006 holds the rotating shaft 801 tightly, restricting the rotating shaft 801 from shaking and rotating at will. The damping block 1007 provides damping buffer force to absorb the shaking and vibration energy during the hoisting process, completely solving the problem of swinging during the hoisting of steel bridge segments and ensuring the stability and precision of the assembly process.

[0028] The support assembly 11 includes a third hydraulic cylinder 1101, a pressure block 1102, and a sliding rod 1103. One end of the rotating arm 3 is fixedly connected to the third hydraulic cylinder 1101 and symmetrically slidably connected to a set of sliding rods 1103. The bottom end of the sliding rod 1103 is fixedly connected to the pressure block 1102, and the output end of the third hydraulic cylinder 1101 is fixedly connected to the top of the pressure block 1102.

[0029] During equipment operation, hydraulic cylinder 1101 extends downward, pushing the pressure block 1102 downward. The sliding rod 1103 slides and extends synchronously with the pressure block 1102, guiding and limiting the pressure block 1102. The pressure block 1102 presses against the ground to form a multi-point support structure, increasing the contact area between the equipment and the ground, offsetting the overturning moment generated by the hoisting operation, improving the overall stability of the machine, and adapting to complex site construction.

[0030] The roller rods 404 are inclined and multiple roller rods 404 are arranged in a ring array around the center of the connecting ring 403. The bottom end of the roller rods 404 is set as an arc fitting structure, which precisely fits and slides with the inner arc surface of the annular groove 401 to ensure the rotational stability of the rotating frame 5.

[0031] Multiple sets of inclined roller rods 404 are arranged in a ring array, which can bear the vertical load and radial torque of the rotating frame 5 in all directions. The bottom end of the arc structure is completely in contact with the inner arc surface of the annular groove 401, which greatly increases the contact area and reduces the sliding friction resistance. At the same time, it realizes coaxial limit during the rotation process, avoids the rotating frame 5 from eccentricity, tilting and jamming, and continuously ensures the stability and accuracy of rotation adjustment.

[0032] The equipment is flexibly transported via transport vehicle 1, eliminating the need for multiple pieces of equipment to be moved, reducing construction space and simplifying work procedures. During construction, the No. 3 hydraulic cylinder 1101 of the support component 11 drives the pressure block 1102 to support the ground and stabilize the entire machine. The worm gear motor 2 drives the rotating arm 3 to adjust its angle and the rotating frame 5 of the rotating component 4 to rotate horizontally, while the double hydraulic cylinders of the lifting component 6 extend and retract to adjust the working height and amplitude. The clamping component 8 clamps and fixes the steel bridge segments, the stabilizing component 10 dampes and limits the lifting to suppress swaying, and the guiding component 9 engages the support frame to achieve precise alignment. The entire machine integrates functions of transportation, support, adjustment, lifting, stabilization, and precise alignment, eliminating the need for repeated manual fine-tuning. This effectively solves the problems of low efficiency, large footprint, poor scene adaptability, low assembly accuracy, and high labor intensity of traditional step-by-step operations, improving the assembly quality and structural service life of the steel bridge.

[0033] The foregoing 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated steel bridge segment hoisting and assembly integrated equipment, comprising a transport vehicle (1), a worm gear motor (2), and a rotating arm (3), characterized in that: The transport vehicle (1) is symmetrically equipped with worm gear motors (2) on both sides of the bottom, and symmetrically connected to rotating arms (3) on both sides of the top. The output end of the worm gear motor (2) is fixedly connected to the rotating arm (3), and the rotating arm (3) is equipped with a support component (11). The top of the transport vehicle (1) is equipped with a rotating component (4) with a worm gear motor (2), and a rotating frame (5) is provided on the top of the rotating component (4). The rotating frame (5) is hinged to lifting components (6) on both sides, and an electric hoist (7) is provided at the top of the lifting component (6). The bottom of the electric hoist (7) is equipped with a clamping component (8) and a stabilizing component (10). The clamping component (8) is equipped with guide components (9) on both sides. The transport vehicle (1) integrates transfer, precise hoisting and alignment assembly.

2. The prefabricated steel bridge segment hoisting and assembly integrated equipment according to claim 1, characterized in that: The rotating assembly (4) includes an annular groove (401), a rotating shaft (402), a connecting ring (403), and roller rods (404). The annular groove (401) is fixed on the top of the transport vehicle (1). The output end of the worm gear motor (2) in the annular groove (401) is fixed to the rotating frame (5) via the rotating shaft (402). The connecting ring (403) is fixed to the outside of the rotating shaft (402). Multiple roller rods (404) are hinged at equal intervals to the outside of the connecting ring (403). The bottom end of the roller rods (404) is in contact with the inside of the annular groove (401).

3. The prefabricated steel bridge segment hoisting and assembly integrated equipment according to claim 1, characterized in that: The lifting assembly (6) includes a telescopic outer rod (601), a first hydraulic cylinder (602), a second hydraulic cylinder (603), and a telescopic inner rod (604). The rotating frame (5) is symmetrically hinged to the telescopic outer rod (601) and the first hydraulic cylinder (602) on both sides. The second hydraulic cylinder (603) is fixedly connected to both sides of the telescopic outer rod (601), and telescopic support rods are matched on the sides of both. The telescopic inner rod (604) is slidably connected to the inner side of the telescopic outer rod (601). The output end of the second hydraulic cylinder (603) is fixedly connected to the top of the telescopic inner rod (604), and the output end of the first hydraulic cylinder (602) is hinged to one side of the telescopic outer rod (601).

4. The prefabricated steel bridge segment hoisting and assembly integrated equipment according to claim 1, characterized in that: The clamping assembly (8) includes a rotating shaft (801), a connecting plate (802), a drive ring (803), a clamping arm (804), and a clamping block (805). The bottom end of the electric hoist (7) is rotatably connected to the rotating shaft (801). The bottom end of the rotating shaft (801) is fixedly connected to the connecting plate (802). The drive rings (803) are symmetrically sleeved on both sides of the connecting plate (802). The bottom ends of the two drive rings (803) are connected to the clamping arms (804) which are staggered. The two clamping arms (804) are hinged at the middle with a pin. The bottom end of the clamping arm (804) is fixedly connected to the clamping block (805).

5. The prefabricated steel bridge segment hoisting and assembly integrated equipment according to claim 4, characterized in that: The guide assembly (9) includes a movable outer rod (901), a movable inner rod (902), a slider (903), a hook (904), a tension spring (905), a connecting rod (906), a limiting hole (907), a miniature cylinder (908), and a limiting block (909). The bottom end of the clamping block (805) is fixedly connected to the movable outer rod (901), and the movable inner rod (902) is slidably connected inside the movable outer rod (901). The movable inner rod (902) is hinged to... The rod (906) is hinged to the slider (903), the slider (903) is hinged to the hook (904) of the support frame, the top of the hook (904) is fixed to the slider (903) by the tension spring (905), the slider (903) and the moving outer rod (901) are both provided with limiting holes (907), the top of the moving outer rod (901) is provided with a miniature cylinder (908), the output end of which is fixed to the limiting block (909) that passes through the limiting hole (907).

6. The prefabricated steel bridge segment hoisting and assembly integrated equipment according to claim 1, characterized in that: The stabilizing component (10) includes a housing (1001), a track rod (1002), a moving block (1003), a lead screw (1004), a rotary motor (1005), a fixing hoist (1006), and a damping block (1007). The bottom end of the electric hoist (7) is fixedly connected to the housing (1001). The track rod (1002) is provided inside the housing (1001). The moving block (1003) with the fixing hoist (1006) is slidably connected to the outside of the track rod (1002). Symmetrical damping blocks (1007) are provided inside the housing (1001) and are fixedly connected to both sides of the fixing hoist (1006). The fixing hoist (1006) clamps the outside of the rotating shaft (801). The rotary motor (1005) is provided outside the housing (1001), and its output end is fixedly connected to the lead screw (1004) which is threadedly engaged with the moving block (1003).

7. The prefabricated steel bridge segment hoisting and assembly integrated equipment according to claim 1, characterized in that: The support assembly (11) includes a third hydraulic cylinder (1101), a pressure block (1102), and a sliding rod (1103). One end of the rotating arm (3) is fixedly connected to the third hydraulic cylinder (1101), and a set of sliding rods (1103) are symmetrically slidably connected. The bottom end of the sliding rod (1103) is fixedly connected to the pressure block (1102), and the output end of the third hydraulic cylinder (1101) is fixedly connected to the top of the pressure block (1102).

8. The prefabricated steel bridge segment hoisting and assembly integrated equipment according to claim 2, characterized in that: The roller rod (404) is inclined and multiple roller rods (404) are arranged in a ring array around the center of the connecting ring (403). The bottom end of the roller rod (404) is set as an arc fitting structure, which precisely fits and slides with the inner arc surface of the annular groove (401) to ensure the rotation stability of the rotating frame (5).

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