A mobile lifting device for assisting the installation of prefabricated components of assembled bridge decks

Abstract

The present invention relates to the technical field of lifting equipment, and specifically discloses a mobile lifting equipment for assisting in the installation of prefabricated components of assembled bridge decks, comprising a frame, a lifting drive unit arranged on the frame, and an integrated load-bearing unit for carrying and fixing the prefabricated components. The lifting drive unit comprises a driving assembly and a positioning assembly for positioning the driving assembly. By providing a locking reinforcement unit and an integrated locking limit assembly, when the prefabricated component falls on the load-bearing beam, the left lifting frame, the prefabricated component, the load-bearing beam and the right lifting frame are integrally locked and limited by the locking reinforcement rod, the locking plug rod, the spring telescopic rod and the locking limit sleeve, thereby forming an integrated locking reinforcement. Further, when the frame moves on the inclined bridge deck or when the electric steering wheel presses a larger object on the bridge deck to cause the frame to vibrate, the overall locking reinforcement structure can significantly prevent the prefabricated component that falls on the top of the load-bearing beam from sliding.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting equipment, and more particularly, to a mobile hoisting equipment for assisting in the installation of prefabricated components of assembled bridge decks. Background Art

[0002] Prefabricated bridge decks are a modern bridge structure characterized by the fact that all deck components are prefabricated in a factory and then transported to the construction site for assembly. Prefabricated cable troughs are part of the prefabricated bridge deck structure, used to install and protect cables. These troughs typically feature a "mountain"-shaped cross-section to accommodate separate high-voltage and low-voltage cables, while providing ample space between the deck walls and facilitating maintenance and inspection.

[0003] A Chinese invention patent with publication number CN118065249A discloses an installation device and method for prefabricated components of an assembled bridge deck system. The device includes a fixed portal and a movable portal. The fixed portal includes an outer column top crossbeam, and the movable portal includes a folding column top crossbeam. The outer column top crossbeam is connected to the folding column top crossbeam. The invention combines the setting of multiple laser sensors to reduce the difficulty of aligning the prefabricated components and improve the installation positioning accuracy.

[0004] However, the above design still has shortcomings:

[0005] First of all, during the current construction process, prefabricated components are generally stacked on the flat area of ​​the bridge deck. During the lifting process, the prefabricated components are transferred from the flat area to the bottom of the folding column top beam by a component transfer vehicle for coordinated lifting. However, when lifting is required on an inclined bridge deck, the prefabricated components placed on the top of the component transfer vehicle are at risk of sliding and offsetting, making it difficult to smoothly insert the pin shaft into the pin shaft hole. If the prefabricated components are installed and lifted on a flat area, and then the fixed gantry is moved to the inclined bridge deck, when the fixed gantry lifts the prefabricated components and moves on the inclined bridge deck, the prefabricated components are at risk of colliding with the fixed gantry due to the offset of their own center of gravity.

[0006] Secondly, during the lifting process, a component transfer vehicle is required to cooperate with the lifting. At the construction site, when the component transfer vehicle is positioned under the folding column top beam, the space between the frame and the component transfer vehicle is relatively limited. The transfer vehicle operator needs to accurately position the component transfer vehicle under the folding column top beam, which is relatively difficult and time-consuming. In addition, during the positioning process, the component transfer vehicle is at risk of collision with the frame. At the same time, setting up a separate component transfer vehicle will increase the lifting cost. Summary of the Invention

[0007] The present invention provides a mobile lifting device for assisting in the installation of prefabricated components of assembled bridge decks, which solves the technical problem in related technologies that a component transfer vehicle is required to assist in the lifting process.

[0008] The present invention provides a mobile lifting device for assisting in the installation of prefabricated components of assembled bridge decks, comprising a frame, a lifting drive unit arranged on the frame, and an integrated load-bearing unit for carrying and fixing the prefabricated components. The lifting drive unit comprises a driving assembly and a positioning assembly for positioning the driving assembly. A self-centering lifting unit and a locking reinforcement unit are provided at the bottom of the driving assembly. The self-centering lifting unit comprises two lifting frames symmetrical on the left and right, two self-centering correction assemblies, and two hole-aligning assemblies. The integrated load-bearing unit comprises a supporting assembly and an integrated locking and limiting assembly.

[0009] The hole-matching assembly includes an electric slider, the supporting assembly includes two load-bearing beams, the integrated locking and limiting assembly includes two pairs of locking and limiting sleeves fixedly installed on the load-bearing beams and symmetrical front and back, and spring telescopic rods are fixedly installed on the left and right sides of the electric slider, and the telescopic section of the spring telescopic rod is in sliding cooperation with the locking and limiting sleeves.

[0010] After the prefabricated component is lifted by the self-centering lifting unit and moved to the top of the load-bearing beam by the lifting drive unit, the prefabricated component is lowered so that it falls on the top of the two load-bearing beams. At the same time, when the prefabricated component approaches the load-bearing beam, the telescopic section of the spring telescopic rod is gradually inserted into the locking limit sleeve to lock and limit the prefabricated component in all directions.

[0011] Furthermore, the locking reinforcement unit includes two pairs of hinged seats fixedly installed on the side close to the two lifting frames and locking reinforcement rods hinged on the hinged seats. The four hinged seats are distributed in a square shape, and locking grooves are provided on the locking reinforcement rods. The locking reinforcement rods are alternately arranged up and down. The four locking reinforcement rods are locked by locking rods and locking grooves during lifting.

[0012] Furthermore, the self-centering and deviation-correcting assembly includes two pairs of slides that are opened on the lifting frame and are symmetrical in front and back. A T-shaped plate is slidably connected in the same pair of slides, and a hydraulic cylinder is hinged between the two T-shaped plates.

[0013] Furthermore, two T-shaped plates are hinged to the output end and the cylinder body of the hydraulic cylinder respectively, a connecting rod is fixedly installed on the bottom of the T-shaped plate, and a mounting plate is fixedly installed on the bottom end of the connecting rod.

[0014] Furthermore, the hole-matching assembly also includes a slide rail fixedly installed at the bottom of the mounting plate, an electric slider is slidably connected to the bottom of the slide rail, a number of lifting holes are opened on the front and rear sides of the prefabricated component, and the electric slider is provided with sockets that are compatible with the lifting holes.

[0015] Furthermore, the frame includes a base frame and two H-shaped gantries fixedly installed on the top of the base frame and symmetrically arranged on the left and right. The two H-shaped gantries are connected by a number of connecting beams, and cross beams are fixedly installed on the top of both H-shaped gantries.

[0016] Furthermore, the supporting assembly also includes two pairs of bottom guide rails fixedly installed on the top of the base frame and symmetrical front and back, two electric sliding plates are slidably connected to the top of the same pair of bottom guide rails, and the load-bearing beam is slidably connected to the top of the two electric sliding plates corresponding front and back on the two pairs of bottom guide rails. The two load-bearing beams are used to support the prefabricated components when the frame moves.

[0017] Furthermore, the driving assembly also includes a top guide rail fixedly installed on the top of the beam and a traveling crane carriage slidably connected to the outside of the top guide rail. An I-beam is commonly installed on the top of the two traveling crane carriages, and two electric hoists are slidably connected to the I-beam. The lifting frame is fixedly connected to the electric hoist through two hanging plates.

[0018] Furthermore, an extension frame is fixedly installed at the bottom of the crossbeam, an extended hydraulic support leg is fixedly installed at the bottom of the extension frame, two left-right symmetrical electric steering wheels and four integrated hydraulic support legs distributed in a square are fixedly installed on the base frame, and a hydraulic station and an integrated diesel generator for powering the equipment are fixedly installed on the right side of the base frame.

[0019] Furthermore, the positioning assembly includes a positioning pin driving cylinder fixedly installed on the side of the traveling crane away from the electric hoist and with a positioning pin fixedly installed on the output end, and two positioning plates with positioning holes and cooperating with the positioning pins are fixedly installed on the side of the beam away from the electric hoist.

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

[0021] 1. By setting a locking reinforcement unit and an integrated locking limit assembly, when the prefabricated component falls on the load-bearing beam, the left hoisting frame, the prefabricated component, the load-bearing beam and the right hoisting frame are locked and limited as a whole by the locking reinforcement rod, the locking plug rod, the spring telescopic rod and the locking limit sleeve, thereby forming an integrated locking reinforcement. When the frame moves on the inclined bridge deck or when the electric steering wheel presses a large object on the bridge deck and causes the frame to vibrate, the overall locking reinforcement structure can significantly prevent the prefabricated component that falls on the top of the load-bearing beam from sliding, thereby ensuring the stability of the prefabricated component on the load-bearing beam.

[0022] 2. Use the rack to lift the prefabricated components in the prefabricated component stacking area and place the prefabricated components on the load-bearing beam, then move the rack to the installation position to install the prefabricated components. Compared with using a component transfer vehicle for lifting, this greatly improves the stability and safety of the lifting process and avoids the risk of collision between the component transfer vehicle and the rack.

[0023] 3. By utilizing the twisting and deforming characteristics of the electric hoist's wire rope, as the slide rail squeezes the prefabricated component, the wire rope twists, and the lifting frame receives the reaction force from the prefabricated component and automatically adjusts to a position perpendicular to the prefabricated component, thereby adjusting the electric sliding plate to a state facing the outer wall of the prefabricated component, thereby facilitating the fixed lifting of the prefabricated component.

[0024] 4. By rotating the locking reinforcement rods, making them close to each other and staggered, and inserting the locking rods, a more stable frame structure is formed. This not only enhances the strength of the lifting frame itself, but also further consolidates the connection between the left and right lifting frames. After locking, the lifting frame can better withstand the force generated during the lifting process, thereby ensuring the safety and stability of the lifting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0026] Figure 2 This invention Figure 1 A partial enlarged view of part A.

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the H-shaped portal frame, connecting beam, electric hoist and base frame of the present invention.

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the hinge seat, locking reinforcement rod, locking groove and locking insertion rod of the present invention.

[0029] Figure 5 It is a partial three-dimensional structural diagram of the slide chute, T-shaped plate, hanging frame, mounting plate and electric sliding plate of the present invention.

[0030] Figure 6 It is a partial three-dimensional structural diagram of the slide rail, spring telescopic rod, hydraulic cylinder and T-shaped plate of the present invention.

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the connecting beam, prefabricated components, lifting holes, extended hydraulic legs and electric steering wheel of the present invention.

[0032] Figure 8 It is a left side view of the present invention.

[0033] In the figure: 1. Frame; 101. Underframe; 102. H-shaped gantry; 103. Connecting beam; 104. Crossbeam; 2. Hoisting drive unit; 201. Drive assembly; 202. Positioning assembly; 2011. Top guide rail; 2012. Traveling crane; 2013. I-beam; 2014. Electric hoist; 2015. Hanging plate; 2021. Positioning pin drive cylinder; 2022. Positioning plate; 3. Self-centering hoisting unit; 4. Locking reinforcement unit; 5. Integrated load-bearing unit; 6. Extension frame; 7. Extended hydraulic support leg; 8. Electric steering wheel; 9. Integrated hydraulic support leg; 10. Integrated diesel generator; 11. Hydraulic station; 12. Prefabricated structure Parts; 301, self-centering and correcting assembly; 302, hole assembly; 303, lifting frame; 3011, slide; 3012, T-plate; 3013, hydraulic cylinder; 3014, connecting rod; 3015, mounting plate; 3021, slide rail; 3022, electric slider; 3023, lifting pin; 3024, lifting hole; 401, hinged seat; 402, locking reinforcement rod; 403, locking groove; 404, locking plug rod; 501, supporting assembly; 502, integrated locking limit assembly; 5011, bottom guide rail; 5012, electric sliding plate; 5013, load-bearing beam; 5021, spring telescopic rod; 5022, locking limit sleeve. DETAILED DESCRIPTION

[0034] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be varied without departing from the scope of protection of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0035] See Figure 1 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 8In this embodiment, a mobile lifting device for assisting the installation of prefabricated components of assembled bridge decks is proposed, including a frame 1, a lifting drive unit 2 arranged on the frame 1, and an integrated load-bearing unit 5 for carrying and fixing the prefabricated component 12. The lifting drive unit 2 includes a driving component 201 and a positioning component 202 for positioning the driving component 201. A self-centering lifting unit 3 and a locking reinforcement unit 4 are provided at the bottom of the driving component 201. The self-centering lifting unit 3 includes two symmetrical lifting frames 303, two self-centering correction components 301 and two hole-aligning components 302. The integrated load-bearing unit 5 includes a supporting component 501 and an integrated locking and limiting component 502. A number of lifting holes 3024 are opened on the front and back sides of the prefabricated component 12.

[0036] See Figure 2 and Figure 3 The frame 1 includes a base frame 101 and two H-shaped portal frames 102 fixedly installed on the top of the base frame 101 and symmetrically arranged on the left and right. The two H-shaped portal frames 102 are connected by a connecting beam 103, and a cross beam 104 is fixedly installed on the top of the two H-shaped portal frames 102.

[0037] See Figure 3 The driving assembly 201 also includes a top guide rail 2011 fixedly installed on the top of the beam 104 and a traveling crane 2012 slidably connected to the outside of the top guide rail 2011. An I-beam 2013 is commonly installed on the top of the two traveling crane 2012. Two electric hoists 2014 are slidably connected to the I-beam 2013. The lifting frame 303 is fixedly connected to the electric hoist 2014 through two hanging plates 2015.

[0038] See Figure 1 、 Figure 2 and Figure 3 An extension frame 6 is fixedly installed at the bottom of the crossbeam 104, and an extended hydraulic support leg 7 is fixedly installed at the bottom of the extension frame 6. Two left-right symmetrical electric steering wheels 8 and four integrated hydraulic support legs 9 distributed in a square are fixedly installed on the base frame 101. A hydraulic station 11 and an integrated diesel generator 10 for powering the equipment are fixedly installed on the right side of the base frame 101.

[0039] See Figure 1 and Figure 3 The positioning assembly 202 includes a positioning pin driving cylinder 2021 fixedly installed on the side of the traveling crane 2012 away from the electric hoist 2014 and with a positioning pin fixedly installed on the output end. The side of the beam 104 away from the electric hoist 2014 is fixedly installed with two positioning plates 2022 with positioning holes and cooperating with the positioning pins.

[0040] When in use, in the initial state, the integrated load-bearing unit 5 is close to the right H-shaped gantry 102. First, the electric steering wheel 8 drives the frame 1 to move to the stacking area of ​​the prefabricated components 12, and then the frame 1 is driven through the left opening of the base frame 101 to the top of the prefabricated components 12 and the integrated hydraulic support legs 9 and the extended hydraulic support legs 7 are controlled to extend and lift the electric steering wheel 8 to fix the frame 1. Then, the electric hoist 2014 above the hanging frame 303 is synchronously moved along the I-beam 2013 to drive the hanging frame 303 Move the lifting frame 303 to the top of the corresponding lifting hole 3024, then gradually lower the lifting frame 303 through the wire rope of the electric hoist 2014 until the self-centering and correcting component 301 corresponds to the lifting hole 3024, then squeeze the prefabricated component 12 through the self-centering hole component 302, and adjust the lifting frame 303 to a state perpendicular to the prefabricated component 12. During this process, the wire rope of the electric hoist 2014 is adaptively twisted, and then docked and installed with the prefabricated component 12 through the self-centering and correcting component 301.

[0041] After the installation is completed, the steel wire ropes of the four electric hoists 2014 are operated to lift synchronously to lift the installed prefabricated component 12. After the prefabricated component 12 is lifted, the steel wire ropes of the electric hoists 2014 are automatically reset, thereby driving the hoisting frame 303 to return to a state parallel to the connecting beam 103, and then driving the prefabricated component 12 to be parallel to the connecting beam 103. After lifting, the integrated load-bearing unit 5 is controlled to move to the bottom of the lifted prefabricated component 12 and correspond to the integrated locking limit assembly 502. Then, the steel wire ropes of the four electric hoists 2014 are operated to lower synchronously to lower the installed prefabricated component 12 until the prefabricated component 12 falls on the top of the integrated load-bearing unit 5 and is locked and limited (such as Figure 1 shown).

[0042] After the installed prefabricated component 12 is lowered and falls on the top of the integrated load-bearing unit 5 and locked, the integrated hydraulic support legs 9 and the extended hydraulic support legs 7 are controlled to retract until the electric steering wheel 8 contacts the bridge deck. Then, the electric steering wheel 8 drives the frame 1 to move to the installation area of ​​the prefabricated component 12 and controls the integrated hydraulic support legs 9 and the extended hydraulic support legs 7 to extend and lift the electric steering wheel 8. Since there is an installed prefabricated component 12 under one of the extended hydraulic support legs 7, this extended hydraulic support leg 7 falls on the plane of the installed prefabricated component 12, and the other extended hydraulic support leg 7 falls on the bridge deck (such as Figure 7As shown), the frame 1 is fixed, and then the steel wire ropes of the four electric hoists 2014 are operated to lift synchronously to lift the prefabricated component 12 that falls on the top of the integrated load-bearing unit 5. Then, the traveling crane 2012 is controlled to move forward and the positioning pin is driven by the output end of the oil cylinder 2021 to push the positioning pin into the corresponding positioning hole for positioning, thereby forming a stable gantry traveling crane structure, greatly improving the stability of the traveling crane 2012, and then lifting and moving the prefabricated component 12 to the top of the installation position. Then, the steel wire ropes of the four electric hoists 2014 are operated to be lowered synchronously to lower the prefabricated component 12 to the installation position for installation. After installation, the lifting positioning assembly 202 and the self-centering hole assembly 302 are controlled to detach from the prefabricated component 12, and then the integrated hydraulic support legs 9 and the extended hydraulic support legs 7 are retracted, and the electric steering wheel 8 drives the frame 1 to move to enter the next operation cycle.

[0043] See Figure 4 、 Figure 5 and Figure 6 The self-centering and deviation-correcting assembly 301 includes two pairs of slides 3011 that are symmetrical front to back and are opened on the lifting frame 303. A T-shaped plate 3012 is slidably connected in the same pair of slides 3011, and a hydraulic cylinder 3013 is hinged between the two T-shaped plates 3012.

[0044] See Figure 4 、 Figure 5 and Figure 6 The two T-shaped plates 3012 are hinged to the output end and the cylinder body of the hydraulic cylinder 3013 respectively. A connecting rod 3014 is fixedly installed at the bottom of the T-shaped plate 3012, and a mounting plate 3015 is fixedly installed at the bottom of the connecting rod 3014.

[0045] See Figure 4 、 Figure 5 and Figure 6 The hole assembly 302 includes a slide rail 3021 fixedly mounted on the bottom of the mounting plate 3015 and an electric slider 3022 slidably connected to the bottom of the slide rail 3021 , and the electric slider 3022 is provided with a socket that is compatible with the lifting hole 3024 .

[0046] When in use, the hydraulic cylinder 3013 is started to shrink the output end of the hydraulic cylinder 3013, thereby driving the two T-shaped plates 3012 to move along the slide groove 3011 and approach each other, and then driving the two mounting plates 3015 to approach each other through the connecting rod 3014, so that the two slide rails 3021 approach each other and contact the outer wall of the prefabricated component 12, and then as the slide rail 3021 continues to move, it will squeeze the prefabricated component 12, and the prefabricated component 12 will not move under the squeezing of the slide rail 3021 due to its own weight, so the squeezing force will be transmitted to the wire rope of the electric hoist 2014, so that the squeezing force of the prefabricated component 12 will drive the wire rope of the electric hoist 2014 The rope twists until the slide rail 3021 is completely close to and parallel to the outer wall of the prefabricated component 12. At this time, the lifting frame 303 is perpendicular to the prefabricated component 12, and the electric sliding plate 5012 is also facing the outer wall of the prefabricated component 12. By utilizing the twisting and deforming characteristics of the wire rope of the electric hoist 2014, as the slide rail 3021 squeezes the prefabricated component 12, the wire rope twists, and the lifting frame 303 is subjected to the reaction force from the prefabricated component 12, and will automatically adjust to a position perpendicular to the prefabricated component 12, thereby adjusting the electric sliding plate 5012 to a state facing the outer wall of the prefabricated component 12, thereby facilitating the fixed lifting of the prefabricated component 12.

[0047] Next, control the electric sliding plate 5012 to move left or right along the slide rail 3021 until the socket on the electric sliding plate 5012 is aligned with the corresponding lifting hole 3024, pass the lifting pin 3023 through the socket on the electric sliding plate 5012 and insert it into the lifting hole 3024 of the prefabricated component 12 to fix and lock it, thereby completing the fixed installation of the prefabricated component 12, and then, control the installed prefabricated component 12 through the wire rope of the electric hoist 2014 for lifting operation.

[0048] After the prefabricated component 12 is lowered to the installation position and installed, the output end of the hydraulic cylinder 3013 is controlled to extend, thereby driving the two T-shaped plates 3012 to move along the slide groove 3011 and move away from each other, and then driving the two mounting plates 3015 to move away from each other through the connecting rod 3014, so that the two slide rails 3021 move away from each other and detach from the prefabricated component 12, and then the next operation cycle can be carried out.

[0049] See Figure 4 and Figure 5 The locking reinforcement unit 4 includes two pairs of hinged seats 401 fixedly installed on the side close to the two lifting frames 303 and locking reinforcement rods 402 hinged on the hinged seats 401. The four hinged seats 401 are distributed in a square shape. Locking grooves 403 are provided on the locking reinforcement rods 402, and the locking reinforcement rods 402 are alternately arranged up and down. The four locking reinforcement rods 402 are locked together by locking rods 404 and locking grooves 403 during lifting.

[0050] During specific use, after the lifting pin shaft 3023 is inserted into the lifting hole 3024 through the insertion hole for fixed installation and locking, the four locking reinforcement rods 402 on the left and right lifting frames 303 are rotated to make the four locking reinforcement rods 402 approach each other until the locking grooves 403 on the four locking reinforcement rods 402 are staggered with each other, and then the locking plug rod 404 is inserted into the hole formed by the staggered relationship between the four locking reinforcement rods 402, thereby fixing the locking reinforcement rod 402. By rotating the locking reinforcement rod 402, making them approach each other and staggered and through the insertion of the locking plug rod 404, a more stable frame structure is formed, which not only enhances the strength of the lifting frame 303 itself, but also further consolidates the connection between the left and right lifting frames 303. After locking, the lifting frame 303 can better withstand the force generated during the lifting process, thereby ensuring the safety and stability of the lifting operation.

[0051] After the prefabricated component 12 is lowered to the installation position and installed, the rods inserted between the four locking reinforcement rods 402 are pulled out, the connection and locking reinforcement between the two hanging frames 303 are released, and the locking reinforcement rods 402 are rotated and reset, and then the next operation cycle can be carried out.

[0052] See Figure 1 、 Figure 2 and Figure 3 The supporting assembly 501 includes two pairs of bottom guide rails 5011 fixedly installed on the top of the base frame 101 and symmetrical front and back. Two electric sliding plates 5012 are slidably connected to the top of the same pair of bottom guide rails 5011. The tops of the two electric sliding plates 5012 corresponding to the front and back of the two pairs of bottom guide rails 5011 are jointly installed with a load-bearing beam 5013. The two load-bearing beams 5013 are used to support the prefabricated components 12 when the frame 1 moves.

[0053] See Figure 1 、 Figure 2 and Figure 3 and Figure 5 The integrated locking and limiting assembly 502 includes two pairs of locking and limiting sleeves 5022 fixedly installed on the load-bearing beam 5013 and symmetrically arranged front and back. Spring telescopic rods 5021 are fixedly installed on the left and right sides of the electric slider 3022. The telescopic section of the spring telescopic rod 5021 slides with the locking and limiting sleeves 5022. When the steel wire rope of the electric hoist 2014 gradually lowers the lifting frame 303, so that the self-centering and correcting assembly 301 corresponds to the lifting hole 3024, the spring telescopic rod 5021 will be released from the bridge deck and squeezed and contracted, and will automatically reset when the prefabricated component 12 is lifted.

[0054] When in use, after the prefabricated component 12 is hoisted, the electric sliding plate 5012 is controlled to move, driving the load-bearing beam 5013 to move toward the side close to the prefabricated component 12 until the locking limit sleeve 5022 moves to the bottom of the corresponding spring telescopic rod 5021. Then, the steel wire ropes of the four electric hoists 2014 are operated to lower the installed prefabricated component 12 synchronously, so that the prefabricated component 12 falls on the top of the two load-bearing beams 5013. At the same time, when the prefabricated component 12 is close to the load-bearing beam 5013, the telescopic section of the spring telescopic rod 5021 is gradually inserted into the locking limit sleeve 5022, and the prefabricated component 12 is fully Locking and limiting, at the same time, the left side hoisting frame 303, the prefabricated component 12, the load-bearing beam 5013 and the right side hoisting frame 303 are locked and limited as a whole by the locking reinforcement rod 402, the locking plug rod 404, the spring telescopic rod 5021 and the locking limit sleeve 5022, thereby forming an integrated locking reinforcement, and then when the frame 1 moves on the inclined bridge deck or when the electric steering wheel 8 presses a large object on the bridge deck to cause the frame 1 to vibrate, the overall locking reinforcement structure can significantly prevent the prefabricated component 12 that falls on the top of the load-bearing beam 5013 from sliding, thereby ensuring the stability of the prefabricated component 12 on the load-bearing beam 5013.

[0055] By controlling the electric sliding plate 5012 to slide on the top of the bottom guide rail 5011, the distance between the two load-bearing beams 5013 can be controlled, and adaptive adjustment can be made according to the different specifications of the prefabricated components 12.

[0056] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A mobile hoisting device for assisting the installation of prefabricated components of assembled bridge decks, characterized in that: include: A frame (1), a hoisting drive unit (2) arranged on the frame (1), and an integrated load-bearing unit (5) for carrying and fixing a prefabricated component (12), wherein the hoisting drive unit (2) includes a drive assembly (201) and a positioning assembly (202) for positioning the drive assembly (201), a self-centering hoisting unit (3) and a locking reinforcement unit (4) are provided at the bottom of the drive assembly (201), the self-centering hoisting unit (3) includes two bilaterally symmetrical hoisting frames (303), two self-centering deviation correction assemblies (301), and two hole alignment assemblies (302), and the integrated load-bearing unit (5) includes a supporting assembly (501) and an integrated locking and limiting assembly (502); The hole-matching assembly (302) includes an electric slider (3022), the supporting assembly (501) includes two load-bearing beams (5013), the integrated locking and limiting assembly (502) includes two pairs of locking and limiting sleeves (5022) fixedly mounted on the load-bearing beams (5013) and symmetrically arranged front to back, and spring telescopic rods (5021) are fixedly mounted on both left and right sides of the electric slider (3022), and the telescopic section of the spring telescopic rod (5021) is in sliding engagement with the locking and limiting sleeves (5022); After the prefabricated component (12) is lifted by the self-centering lifting unit (3) and moved to the top of the load-bearing beam (5013) by the lifting drive unit (2), the prefabricated component (12) is lowered so that the prefabricated component (12) falls on the top of the two load-bearing beams (5013). At the same time, when the prefabricated component (12) approaches the load-bearing beam (5013), the telescopic section of the spring telescopic rod (5021) is gradually inserted into the locking limit sleeve (5022), thereby performing all-round locking and limiting on the prefabricated component (12); The locking reinforcement unit (4) comprises two pairs of hinged seats (401) fixedly mounted on adjacent sides of the two hanging frames (303) and locking reinforcement rods (402) hinged on the hinged seats (401), the four hinged seats (401) being distributed in a square shape, the locking reinforcement rods (402) being provided with locking grooves (403), and the locking reinforcement rods (402) being alternately arranged up and down, and the four locking reinforcement rods (402) being locked together by the locking rods (404) and the locking grooves (403) during hanging; The self-centering deviation-correcting assembly (301) comprises two pairs of chute grooves (3011) provided on the hoisting frame (303) and symmetrical in front and back, a T-shaped plate (3012) being slidably connected in the same pair of chute grooves (3011), and a hydraulic cylinder (3013) being hinged between the two T-shaped plates (3012); Two T-shaped plates (3012) are hinged to the output end and the cylinder body of the hydraulic cylinder (3013) respectively. A connecting rod (3014) is fixedly installed at the bottom of the T-shaped plate (3012), and a mounting plate (3015) is fixedly installed at the bottom end of the connecting rod (3014). The hole-matching assembly (302) further comprises a slide rail (3021) fixedly mounted on the bottom of the mounting plate (3015); an electric slider (3022) is slidably connected to the bottom of the slide rail (3021); a plurality of hoisting holes (3024) are provided on both the front and rear sides of the prefabricated component (12); and sockets adapted to the hoisting holes (3024) are provided on the electric slider (3022).

2. The mobile hoisting equipment for assisting the installation of prefabricated components of assembled bridge decks according to claim 1, characterized in that: The frame (1) comprises a base frame (101) and two H-shaped portal frames (102) fixedly mounted on the top of the base frame (101) and symmetrical to each other. The two H-shaped portal frames (102) are connected via a plurality of connecting beams (103), and a cross beam (104) is fixedly mounted on the top of each of the two H-shaped portal frames (102).

3. The mobile hoisting equipment for assisting the installation of prefabricated components of assembled bridge decks according to claim 2, characterized in that: The supporting assembly (501) further comprises two pairs of bottom guide rails (5011) fixedly mounted on the top of the base frame (101) and symmetrical in front and back, two electric sliding plates (5012) being slidably connected to the top of the same pair of bottom guide rails (5011), a load-bearing beam (5013) being slidably connected to the tops of the two electric sliding plates (5012) corresponding to each other in the front and back of the two pairs of bottom guide rails (5011), and the two load-bearing beams (5013) being used to support the prefabricated components (12) when the frame (1) moves.

4. The mobile hoisting equipment for assisting the installation of prefabricated components of assembled bridge decks according to claim 2, characterized in that: The driving assembly (201) further comprises a top guide rail (2011) fixedly mounted on the top of the crossbeam (104) and a traveling crane carriage (2012) slidably connected to the outside of the top guide rail (2011); an I-beam (2013) is commonly mounted on the top of the two traveling crane carriages (2012); two electric hoists (2014) are slidably connected to the I-beam (2013); and a hoisting frame (303) is fixedly connected to the electric hoist (2014) via two hanging plates (2015).

5. The mobile hoisting equipment for assisting the installation of prefabricated components of assembled bridge decks according to claim 4, characterized in that: An extension frame (6) is fixedly mounted on the bottom of the crossbeam (104), an extension hydraulic support leg (7) is fixedly mounted on the bottom of the extension frame (6), two electric steering wheels (8) symmetrically arranged on the left and right and four integrated hydraulic support legs (9) distributed in a square are fixedly mounted on the bottom frame (101), and a hydraulic station (11) and an integrated diesel generator (10) for powering the equipment are fixedly mounted on the right side of the bottom frame (101).

6. The mobile hoisting equipment for assisting the installation of prefabricated components of assembled bridge decks according to claim 2, characterized in that: The positioning assembly (202) includes a positioning pin driving cylinder (2021) fixedly mounted on a side of the traveling crane vehicle (2012) away from the electric hoist (2014), and having a positioning pin fixedly mounted on the output end; and two positioning plates (2022) with positioning holes and cooperating with the positioning pins are fixedly mounted on a side of the crossbeam (104) away from the electric hoist (2014).

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