Self-adaptive wind-resistant stable box girder hoisting equipment and balance control method thereof

By using an adaptive, wind-resistant, and stable box girder hoisting equipment, which utilizes a steel structure support and gear drive components to control the winding and unwinding of steel cables, the problems of swaying and offset during the hoisting of steel girder boxes have been solved, achieving a stable and efficient hoisting effect.

CN121107236APending Publication Date: 2025-12-12CCCC SHEC FIRST HIGHWAY ENG
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Patent Information

Application Number
CN202511593590.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-03
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

Existing box girder hoisting equipment is prone to swaying and swinging during steel girder box hoisting under the influence of wind, which affects the positioning accuracy and hoisting stability.

Method used

An adaptive wind-resistant and stable box girder hoisting equipment is adopted, which includes a steel structure support body, a lateral displacement structure, a sliding lower support, and a wind-resistant hoisting structure. The winding and unwinding of the tension steel rope is controlled by a gear drive assembly and a winding drum, and the stable hoisting of the steel girder box is achieved in combination with the box girder clamping assembly.

Benefits of technology

To ensure the stability and precise positioning of the steel beam box hoisting under the influence of wind, reduce swaying and offset, and improve hoisting safety and equipment lifespan.

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Abstract

The invention discloses self-adaptive wind-resistant stable box girder hoisting equipment and a balance control method thereof, and relates to the technical field of box girder hoisting equipment. The self-adaptive wind-resistant stable box girder hoisting equipment comprises a steel structure bracket body, the transverse displacement structures are mounted on the left and right sides of the steel structure bracket body and extend to the bottom of the steel structure bracket body; the lower sliding support is connected with the transverse displacement structure and movably connected to the bottom of the steel structure support body; the wind-resistant hoisting structure is mounted at the bottom of the lower sliding support and comprises a gear driving assembly mounted at the bottom of the lower sliding support; and the winding roller is mounted in the gear driving assembly and is driven by the gear driving assembly. According to the multi-point synchronous lifting device, synchronous lifting movement of multiple points can be conducted on the steel box girder, the stability of the steel box girder during lifting is guaranteed, the steel box girder is not prone to shaking and shifting due to the influence of factors such as external strong wind, and then the steel box girder lifting operation with the better effect and the high safety is achieved.
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Description

Technical Field

[0001] This invention relates to the field of box girder hoisting equipment technology, specifically to an adaptive wind-resistant and stable box girder hoisting equipment and its balance control method. Background Technology

[0002] Box girders are prefabricated components commonly used in construction engineering, primarily for bridge and building construction, serving functions such as support, sound insulation, and earthquake resistance. Steel box girders are frequently used in large bridge construction due to their high strength and durability, and are typically made of steel structures. Box girder hoisting equipment is required when assembling steel box girders.

[0003] A steel box girder hoisting device, disclosed in CN118701944A, includes a steel box girder. Two sets of mating plates are arranged on the top of the steel box girder, with two plates in each set arranged symmetrically. A double-push assembly is arranged between every two mating plates. A connecting plate is fixedly connected to the top of each pair of mating plates. Fixed seats are symmetrically fixedly connected to the top of the two connecting plates. A rope loop is fixedly connected to the inner wall of each fixed seat. Each rope loop is connected to a lifting ring on a crane via a wire rope. A push plate assembly is arranged inside each mating plate. In this solution, the push plate assembly enables the mating plates to form a stable clamping effect on the two side walls of the steel box girder, maintaining a stable and efficient hoisting effect and avoiding the inconvenience of connecting the steel box girder by installing and disassembling the hoisting points.

[0004] Existing box girder hoisting equipment requires clamping and securing the steel box girders during bridge construction to ensure their stability during hoisting. However, in actual bridge assembly, due to the unpredictable wind conditions, the steel box girders are prone to swaying, swinging, or tilting during lifting and alignment, affecting the accuracy of alignment, resulting in poor stability of the hoisting system and significant deviations in hoisting and assembly. Summary of the Invention

[0005] The purpose of this invention is to provide an adaptive wind-resistant and stable box girder hoisting device and its balance control method to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This invention provides an adaptive wind-resistant and stable box girder hoisting device, comprising: a steel structure support body; lateral displacement structures installed on the left and right sides of the steel structure support body and extending to the bottom of the steel structure support body; sliding lower supports connected to the lateral displacement structures and movably connected to the bottom of the steel structure support body; and a wind-resistant hoisting structure installed at the bottom of the sliding lower supports. The wind-resistant hoisting structure includes: a gear drive assembly installed at the bottom of the sliding lower support; a winding drum installed inside and driven by the gear drive assembly; a tension steel cable wound around the outside of the winding drum and extending to the bottom angle of the gear drive assembly; and a box girder clamping assembly installed at the bottom of the tension steel cable. The box girder clamping assembly clamps and fixes a box girder component on its inner side.

[0007] As a preferred embodiment of the present invention, the steel structure support body includes: a transverse support; longitudinal metal rods welded and fixed to the inner sides of the upper and lower ends of the transverse support; T-shaped bases installed on the left and right sides of the transverse support by screws; and transverse guide rails installed at the bottom of the transverse support. The bottom of the transverse guide rail is slidably connected to a lower sliding support, and the side of the T-shaped base is equipped with a transverse displacement structure.

[0008] As a preferred embodiment of the present invention, the lateral displacement structure includes: a side mounting base screwed onto the outside of the T-shaped base; a movable roller rotatably connected inside the T-shaped base; a first drive source connected to the movable roller and mounted on the side of the T-shaped base; a central steel rope wound around the outside of the movable roller; and a diverting steel rope mounted at the bottom of the central steel rope. The diversion steel rope is connected to the side of the sliding lower support.

[0009] In a preferred embodiment of the present invention, the concentrated steel cable abuts against the sides of the two guide wheels, the guide wheels are mounted on the outside of the sliding block, the sliding block is slidably connected to the outside of the longitudinal slide rod, and the longitudinal slide rod is mounted inside the T-shaped base. There are two of the guide wheels and the longitudinal slide bars.

[0010] In a preferred embodiment of the present invention, the gear drive assembly includes: a second drive source mounted on one side of the top of the sliding lower support; a first rotating rod connected to the second drive source; a lower base mounted on the bottom of the sliding lower support; two first rotating rods on the same horizontal plane connected by a synchronous belt; and two first rotating rods on the same vertical plane connected by a transmission gear. A take-up roller is mounted on the outer side of the first rotating rod, and the take-up roller is rotatably connected to the top of the lower base.

[0011] As a preferred embodiment of the present invention, the synchronous belt is rotatably connected to the top of the sliding lower support, four transmission gears are provided, and the tension steel rope extends to the outside of the lower base.

[0012] As a preferred embodiment of the present invention, the box girder clamping assembly includes: a clamping connecting seat installed at the bottom of the tension steel cable; a third drive source installed on the side of the clamping connecting seat; a transmission belt connected to the output end of the third drive source via a synchronous pulley and movably disposed at the top of the clamping connecting seat; a vertical reciprocating screw connected to the inner side of the transmission belt via a synchronous pulley and rotatably connected inside the clamping connecting seat; a vertical slide block connected to the outer side of the vertical reciprocating screw via ball bearings and movably connected inside the clamping connecting seat; and an L-shaped pressing block installed on the side of the vertical slide block by screws. The box girder component is clamped and fixed at the bottom of the L-shaped pressing block and the top of the clamping connecting seat.

[0013] As a preferred embodiment of the present invention, vertical guide rods located on the sides of the tension steel rope are installed on both sides of the top of the clamping connecting seat. The vertical guide rods are slidably connected to the sides of the side guide seat, and the side guide seat is installed on the left and right sides of the sliding lower support.

[0014] This invention also provides a balance control method for the hoisting of adaptive wind-resistant and stable box girders, comprising the following steps: S1. Transportation of box girder components: Based on the form of the box girder components and the alignment characteristics of the completed bridge, the box girder components are prefabricated separately using the short-line matching method for centralized prefabrication, and the box girder components are transported by sea-based girder transport vessels. S2. Lifting of box girder components: The box girder components moved to the bottom of the steel structure support are clamped and fixed by the box girder lifting equipment, and the box girder components are moved vertically and laterally to adjust the lifting position of the box girder components. S3. Adjustment of box girder components: Sensors are installed inside the box girder hoisting equipment to detect data from wind speed and wave sensors, and the attitude of the box girder hoisting equipment is adjusted in real time to compensate for wind load disturbances and control hoisting deviations.

[0015] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects: 1. In the adaptive wind-resistant and stable box girder hoisting equipment and its balance control method, when assembling the steel box girder that forms a bridge, a third drive source can be used to drive multiple winding drums connected to it by belt drive and gear meshing to rotate. The tension steel ropes on the outside of the winding drums are wound and unwound synchronously and in the same direction, thereby driving the steel box girder clamped and fixed at the bottom of the tension steel ropes to move synchronously at multiple points. This ensures the stability of the steel box girder during hoisting and is not easily affected by external factors such as strong winds, so as to achieve better effect and higher safety in the steel box girder hoisting operation. 2. In the adaptive wind-resistant and stable box girder hoisting equipment and its balance control method, when the clamped and fixed steel girder box is moved laterally, multiple guide wheels can be designed to guide and support the telescopic steel rope, ensuring greater stability when the steel girder box is moved laterally. Simultaneously, the guide wheels can rotate freely on the outside of the sliding block, and the sliding block can slide horizontally on the outside of the longitudinal sliding rod. This reduces the probability of the steel rope becoming entangled or colliding during the movement of the steel girder box by pulling and releasing the steel rope, ensuring that the steel rope can be spirally wound around the outside of the winding drum. 3. In the adaptive wind-resistant and stable box girder hoisting equipment and its balance control method, the steel structure support body composed of freely assembled and high-strength transverse supports and longitudinal metal rods can ensure that the supporting steel structure support body is not prone to breakage during the hoisting of heavy steel box girders, effectively improving the service life of the hoisting equipment. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0017] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall side view of the present invention; Figure 3 This is a schematic diagram of the overall main view of the present invention; Figure 4 This is a schematic diagram of the overall structure of the invention from a bottom view; Figure 5 This is the present invention. Figure 4 Enlarged structural diagram of region A in the middle; Figure 6 This is a top-view structural schematic diagram of the connection between the steel structure support body and the lateral displacement structure of the present invention; Figure 7 This is a schematic diagram of the wind-resistant hoisting structure of the present invention; Figure 8This is a schematic diagram of the connection between the gear drive assembly and the winding drum of the present invention; Figure 9 This is a schematic diagram of the structure of the box girder clamping assembly of the present invention; In the picture: 10. Steel structure support body; 101. Horizontal support; 102. Longitudinal metal rod; 103. T-shaped base; 104. Horizontal guide rail; 20. Lateral displacement structure; 201. Side mounting base; 202. Movable roller; 203. First drive source; 204. Concentrated steel cable; 2041. Guide wheel; 2042. Sliding block; 2043. Longitudinal slide bar; 205. Diverting steel cable; 30. Sliding lower support; 40. Wind-resistant hoisting structure; 401. Gear drive assembly; 402. Winding drum; 403. Tension steel rope; 404. Box girder clamping assembly; 4011, Second drive source; 4012, First rotating rod; 4013, Lower base; 4014, Synchronous belt; 4015, Transmission gear; 4041, Clamping Connector; 40411, Vertical Guide Rod; 40412, Side Guide Seat; 4042, Third Drive Source; 4043, Transmission Belt; 4044, Vertical Reciprocating Screw; 4045, Vertical Slide; 4046, L-shaped Lower Pressure Block; 50. Box girder components. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] Example 1 Please see Figures 1-9An adaptive wind-resistant and stable box girder hoisting device includes a steel structure support body 10; lateral displacement structures 20 installed on the left and right sides of the steel structure support body 10 and extending to the bottom of the steel structure support body 10; a sliding lower support 30 connected to the lateral displacement structure 20 and movably connected to the bottom of the steel structure support body 10; and a wind-resistant hoisting structure 40 installed at the bottom of the sliding lower support 30. The wind-resistant hoisting structure 40 includes: a gear drive assembly 401 installed at the bottom of the sliding lower support 30; a winding drum 402 installed inside the gear drive assembly 401 and driven by the gear drive assembly 401; a tension steel rope 403 wound outside the winding drum 402 and extending to the bottom angle of the gear drive assembly 401; and a box girder clamping assembly 404 installed at the bottom of the tension steel rope 403, wherein a box girder component 50 is clamped and fixed on the inner side of the box girder clamping assembly 404.

[0021] The working principle described above is as follows: When the box girder component 50 is hoisted and assembled, the box girder component 50, transported to a specific location by a transport vehicle, can rotate the winding drum 402 via the gear drive assembly 401. This causes the tension steel rope 403 wound on the outer side of the winding drum 402 to unwind, moving the box girder clamping assembly 404 connected to the bottom of the tension steel rope 403 downwards to the side of the box girder component 50. Subsequently, the box girder clamping assembly 404 operates, clamping and fixing the box girder component 50 located on its inner side. Through the operation of the lateral displacement structure 20 and the gear drive assembly 401, the box girder component 50 is moved laterally and vertically, achieving displacement operations and adjusting the assembly position of the box girder component 50.

[0022] For details, please refer to the following: Figure 4 and Figure 6 The steel structure support body 10 includes: a transverse support 101; longitudinal metal rods 102 welded and fixed to the inner sides of the upper and lower ends of the transverse support 101; T-shaped bases 103 installed on the left and right sides of the transverse support 101 by screws; and a transverse guide rail 104 installed at the bottom of the transverse support 101, wherein a sliding lower support 30 is slidably connected to the bottom of the transverse guide rail 104, and a transverse displacement structure 20 is installed on the side of the T-shaped base 103.

[0023] In the adaptive wind-resistant and stable box girder hoisting equipment of the present invention, the overall strength of the steel structure support body 10 is improved by the design of its internal structure, and it can be spliced ​​to meet the usage requirements of box girder hoisting equipment of different lengths.

[0024] For details, please refer to the following: Figure 4 and Figure 6The lateral displacement structure 20 includes: a side mounting base 201 mounted on the outside of the T-shaped base 103 by screws; a movable roller 202 rotatably connected inside the T-shaped base 103; a first drive source 203 connected to the movable roller 202 and mounted on the side of the T-shaped base 103; a central steel rope 204 wound on the outside of the movable roller 202; and a diverting steel rope 205 mounted at the bottom of the central steel rope 204, wherein the diverting steel rope 205 is connected to the side of the sliding lower support 30.

[0025] In this scheme, the concentrated steel cable 204 abuts against the sides of the two guide wheels 2041. The guide wheels 2041 are installed on the outside of the sliding block 2042. The sliding block 2042 is slidably connected to the outside of the longitudinal slide rod 2043. The longitudinal slide rod 2043 is installed inside the T-shaped base 103. There are two guide wheels 2041 and two longitudinal slide rods 2043.

[0026] In the adaptive wind-resistant and stable box girder hoisting equipment of the present invention, when the box girder component 50 is moved laterally, the first drive source 203 is started to operate, which drives the movable roller 202 connected to the output end of the first drive source 203 to rotate, which drives the concentrated steel rope 204 wound on the outside of the movable roller 202 to be wound up and unwound, so that the bottom of the concentrated steel rope 204 is connected to the sliding lower support 30 through the diverting steel rope 205 to move horizontally, and adjusts the position of the box girder component 50 clamped and fixed at the bottom of the sliding lower support 30.

[0027] When the concentrated steel rope 204 is wound up or down, the guide wheel 2041, which abuts against its side, provides centralized guidance and support for the concentrated steel rope 204, improving the stability of the concentrated steel rope 204 driving the sliding lower support 30 to move laterally. Simultaneously, the guide wheel 2041 can rotate freely outside the sliding block 2042, and the sliding block 2042 can move outside the longitudinal slide bar 2043. This accommodates different winding positions of the concentrated steel rope 204 outside the movable drum 202, reducing the likelihood of the concentrated steel rope 204 colliding multiple times or even tangling at a single point.

[0028] For details, please refer to the following: Figure 7 and Figure 8 The gear drive assembly 401 includes: a second drive source 4011 installed on one side of the top of the sliding lower support 30; a first rotating rod 4012 connected to the second drive source 4011; a lower base 4013 installed at the bottom of the sliding lower support 30; two first rotating rods 4012 on the same horizontal plane connected by a synchronous belt 4014; and two first rotating rods 4012 on the same vertical plane connected by a transmission gear 4015. A winding roller 402 is installed on the outer side of the first rotating rod 4012, and the winding roller 402 is rotatably connected to the top of the lower base 4013.

[0029] In this design, a synchronous belt 4014 is rotatably connected to the top of the sliding lower support 30, four transmission gears 4015 are provided, and a tension steel rope 403 extends to the outside of the lower base 4013.

[0030] In the adaptive wind-resistant and stable box girder hoisting equipment of the present invention, when the drive winding drum 400 winds up and unwinds the outer tension steel rope 403, the second drive source 4011 is activated, driving the first rotating rod 4012 connected to the output end of the second drive source 4011 to rotate. When the first rotating rod 4012 rotates, the transmission gear 4015 installed on its outer side will rotate, and through the design of the three transmission gears 4015 meshing in sequence, the two first rotating rods 4012 rotate in the same direction, and the winding up and unwinding operations of multiple winding drums 402 are performed synchronously.

[0031] For details, please refer to the following: Figure 9 The box girder clamping assembly 404 includes: a clamping connecting seat 4041 installed at the bottom of the tension steel cable 403; a third drive source 4042 installed on the side of the clamping connecting seat 4041; a transmission belt 4043 connected to the output end of the third drive source 4042 via a synchronous pulley and movably disposed at the top of the clamping connecting seat 4041; a vertical reciprocating screw 4044 connected to the inner side of the transmission belt 4043 via a synchronous pulley and rotatably connected inside the clamping connecting seat 4041; a vertical slide 4045 connected to the outer side of the vertical reciprocating screw 4044 via ball bearings and movably connected inside the clamping connecting seat 4041; and an L-shaped lower pressure block 4046 installed on the side of the vertical slide 4045 by screws, wherein the bottom of the L-shaped lower pressure block 4046 and the top of the clamping connecting seat 4041 clamp and fix the box girder component 50.

[0032] In this design, vertical guide rods 40411 are installed on both sides of the top of the clamping connecting seat 4041, located on the side of the tension steel rope 403. The vertical guide rods 40411 are slidably connected to the side of the side guide seat 40412, which is installed on the left and right sides of the sliding lower support 30.

[0033] In the adaptive wind-resistant and stable box girder hoisting equipment of the present invention, when the box girder component 50 is clamped and fixed, the third drive source 4042 is activated to operate, driving the transmission belt 4043 connected to the outer side of the output end of the third drive source 4042 via a synchronous pulley to operate, and causing the vertical reciprocating screw 4044 connected to the inner side of the transmission belt 4043 via a synchronous pulley to rotate. When the vertical reciprocating screw 4044 rotates, the vertical slide 4045 connected to its outer side via ball bearings will move up and down, causing the L-shaped lower pressure block 4046 mounted on the side of the vertical slide 4045 to move up and down, pressing the box girder component 50 at the bottom of the L-shaped lower pressure block 4046, so that the box girder component 50 is fixed between the L-shaped lower pressure block 4046 and the clamping connecting seat 4041.

[0034] Example 2 Please see Figures 1-9 An adaptive, wind-resistant, and stable box girder hoisting balance control method includes the following steps: S1. Transportation of box girder component 50: Based on the form of box girder component 50 and the alignment characteristics of the completed bridge, the box girder component 50 is prefabricated separately using the short-line matching method for centralized prefabrication, and the box girder component 50 is transported by sea-borne girder transport vessel. S2. Lifting of box girder component 50: The box girder component 50, which has been moved to the bottom of the steel structure support body 10, is clamped and fixed by the box girder lifting equipment, and the box girder component 50 is moved to extend and retract in the vertical and horizontal directions to adjust the lifting position of the box girder component 50. S3. Adjustment of box girder component 50: Sensors are installed inside the box girder hoisting equipment to detect data from wind speed and wave sensors, and the attitude of the box girder hoisting equipment is adjusted in real time to compensate for wind load disturbances and control hoisting deviations.

[0035] 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 preferred examples and are not intended to limit 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.

[0036] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention.

[0037] Therefore, any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solution and inventive concept of this invention, should be covered within the protection scope of this invention.

Claims

1. An adaptive wind-resistant and stable box girder hoisting device, characterized in that, include: Steel structure support body (10); lateral displacement structure (20) installed on the left and right sides of the steel structure support body (10) and extending to the bottom of the steel structure support body (10); sliding lower support (30) connected to the lateral displacement structure (20) and movably connected to the bottom of the steel structure support body (10); Wind-resistant hoisting structure (40) installed at the bottom of the sliding lower support (30). The wind-resistant hoisting structure (40) includes: a gear drive assembly (401) installed at the bottom of the sliding lower support (30); a take-up drum (402) installed inside the gear drive assembly (401) and driven by the gear drive assembly (401); a tension steel cable (403) wound outside the take-up drum (402) and extending to the bottom angle of the gear drive assembly (401); and a box girder clamping assembly (404) installed at the bottom of the tension steel cable (403). The box girder clamping assembly (404) clamps and fixes a box girder component (50) on its inner side.

2. The adaptive wind-resistant and stable box girder hoisting equipment according to claim 1, characterized in that: The steel structure support body (10) includes: a transverse support (101); longitudinal metal rods (102) welded and fixed to the inner sides of the upper and lower ends of the transverse support (101); T-shaped bases (103) installed on the left and right sides of the transverse support (101) by screws; and transverse guide rails (104) installed at the bottom of the transverse support (101). The bottom of the transverse guide rail (104) is slidably connected to a sliding lower support (30), and the side of the T-shaped base (103) is equipped with a transverse displacement structure (20).

3. The adaptive wind-resistant and stable box girder hoisting equipment according to claim 1, characterized in that: The lateral displacement structure (20) includes: a side mounting base (201) installed on the outside of the T-shaped base (103) by screws; a movable roller (202) rotatably connected inside the T-shaped base (103); a first drive source (203) connected to the movable roller (202) and installed on the side of the T-shaped base (103); a concentrated steel rope (204) wound on the outside of the movable roller (202); and a diverting steel rope (205) installed at the bottom of the concentrated steel rope (204). The diversion steel rope (205) is connected to the side of the sliding lower support (30).

4. The adaptive wind-resistant and stable box girder hoisting equipment according to claim 3, characterized in that: The concentrated steel cable (204) abuts against the sides of two guide wheels (2041), the guide wheels (2041) being mounted on the outside of the sliding block (2042), the sliding block (2042) being slidably connected to the outside of the longitudinal slide rod (2043), the longitudinal slide rod (2043) being mounted inside the T-shaped base (103). There are two of the guide wheel (2041) and the longitudinal slide bar (2043).

5. The adaptive wind-resistant and stable box girder hoisting equipment according to claim 1, characterized in that: The gear drive assembly (401) includes: a second drive source (4011) mounted on one side of the top of the sliding lower support (30); a first rotating rod (4012) connected to the second drive source (4011); a lower base (4013) mounted on the bottom of the sliding lower support (30); two first rotating rods (4012) on the same horizontal plane connected by a synchronous belt (4014); and two first rotating rods (4012) on the same vertical plane connected by a transmission gear (4015). The first rotating rod (4012) has a take-up roller (402) mounted on its outer side, and the take-up roller (402) is rotatably connected to the top of the lower base (4013).

6. The adaptive wind-resistant and stable box girder hoisting equipment according to claim 5, characterized in that: The synchronous belt (4014) is rotatably connected to the top of the sliding lower support (30), four transmission gears (4015) are provided, and the tension steel rope (403) extends to the outside of the lower base (4013).

7. The adaptive wind-resistant and stable box girder hoisting equipment according to claim 1, characterized in that: The box girder clamping assembly (404) includes: a clamping connector (4041) installed at the bottom of the tension steel cable (403); a third drive source (4042) installed on the side of the clamping connector (4041); a transmission belt (4043) connected to the output end of the third drive source (4042) via a synchronous pulley and movably disposed at the top of the clamping connector (4041); a vertical reciprocating screw (4044) connected to the inner side of the transmission belt (4043) via a synchronous pulley and rotatably connected inside the clamping connector (4041); a vertical slide (4045) connected to the outer side of the vertical reciprocating screw (4044) via ball bearings and movably connected inside the clamping connector (4041); and an L-shaped lower pressure block (4046) installed on the side of the vertical slide (4045) by screws. The box girder component (50) is clamped and fixed at the bottom of the L-shaped pressing block (4046) and the top of the clamping connecting seat (4041).

8. The adaptive wind-resistant and stable box girder hoisting equipment according to claim 7, characterized in that: Vertical guide rods (40411) located on the sides of the tension steel rope (403) are installed on both sides of the top of the clamping connecting seat (4041). The vertical guide rods (40411) are slidably connected to the side of the side guide seat (40412). The side guide seat (40412) is installed on the left and right sides of the sliding lower support (30).

9. A balance control method for adaptive wind-resistant and stable box girder hoisting, relating to an adaptive wind-resistant and stable box girder hoisting device according to any one of claims 1-8, characterized in that, Includes the following steps: S1. Transportation of box girder components (50): Based on the form of box girder components (50) and the linear characteristics of the completed bridge, the box girder components (50) are prefabricated separately using the short-line matching method for centralized prefabrication, and the box girder components (50) are transported by sea-borne beam transport vessels. S2. Lifting of box girder component (50): The box girder component (50) moved to the bottom of the steel structure support body (10) is clamped and fixed by the box girder lifting equipment, and the box girder component (50) is moved to extend and retract in the vertical and horizontal directions to adjust the lifting position of the box girder component (50). S3. Adjustment of box girder components (50): Sensors are installed inside the box girder hoisting equipment to detect data from wind speed and wave sensors, and the attitude of the box girder hoisting equipment is adjusted in real time to compensate for wind load disturbances and control hoisting deviations.

Citation Information

Patent Citations

  • Steel box girder hoisting device

    CN118701944A