Adjusting device for improving construction efficiency and precision of steel box girder

Abstract

The present application relates to the technical field of bridge construction, in particular to a kind of adjusting device for improving the construction efficiency and precision of steel box girder, the position of steel box girder can be detected and fed back by laser detection assembly, the position error of steel box girder is detected, when the side and end of steel box girder are not horizontally corresponding with adjacent steel box girder, steel box girder is lifted by using pushing mechanism, steel box girder is adjusted by turning over by adjusting assembly, so that steel box girder is horizontally corresponding with adjacent steel box girder, and then the end of adjacent steel box girder is precisely welded and docked.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, specifically to an adjustment device for improving the efficiency and accuracy of steel box girder construction. Background Technology

[0002] A steel box girder is a structural component used in bridges, tunnels, and other engineering projects. It is usually made of steel and has a rectangular or box-shaped cross-section, hence the name. Due to its excellent load-bearing capacity, seismic performance, and durability, steel box girders are widely used in large-scale bridge and tunnel projects.

[0003] Steel box girders are an important component of highway bridges. Currently, the connection of steel box girders is to weld them in advance and then lift them using large hoisting equipment. However, due to the influence of the construction environment, there are sometimes problems with the access of large hoisting equipment to the construction site, making it impossible to lift the steel box girders using large hoisting equipment. Moreover, when using large hoisting equipment to lift steel box girders, the lifting difficulty is also relatively large. Therefore, the current construction of steel box girders generally uses small hoisting equipment to lift them in sections on the construction site, lifting the steel box girders onto temporary supports and then welding and fixing them in sections.

[0004] However, when welding adjacent steel box girders together after they are hoisted onto temporary supports, the girders are affected by external hoisting factors, leading to precision errors between their ends. Furthermore, the height of each temporary support also affects the welding. The combined effect of these errors significantly complicates the welding process, requiring multiple hoisting adjustments to meet construction requirements and reducing efficiency. Moreover, the current method of directly hoisting steel box girders onto temporary supports lacks the necessary adjustment mechanisms. This prevents left-right tilting adjustments when adjacent girders are not horizontally aligned, and also prevents adjustments when their front and rear ends are at different heights. This results in significant time wasted on repositioning, further hindering construction. Therefore, it is necessary to develop an adjustment device to improve the efficiency and accuracy of steel box girder construction. Summary of the Invention

[0005] To address the aforementioned defects and problems, this invention provides an adjustment device for improving the construction efficiency and accuracy of steel box girders. Its purpose is to use a laser detection component to detect and provide feedback on the position of the steel box girder, identifying positional errors. When it is detected that the side and end of the steel box girder are not horizontally aligned with adjacent steel box girders, a jacking mechanism is used to lift the steel box girder. The adjustment component then flips and adjusts the steel box girder to align it horizontally with adjacent steel box girders, allowing for precise welding and connection of the ends of the adjacent steel box girders.

[0006] The solution adopted by this invention to solve its technical problem is: an adjustment device for improving the construction efficiency and accuracy of steel box girders, including a temporary support, a horizontal plate installed on the top of the temporary support, a laser detection component, a fixed support group, an adjustment support group, and a jacking mechanism. The laser detection component includes laser detection heads symmetrically arranged on the sides and top of the steel box girder, and targets corresponding to the laser detection heads are provided on both sides and top of the tail ends of adjacent steel box girders. Through the cooperation of the laser detection heads and targets, the position of the steel box girder can be detected and fed back. The fixed support group includes fixed supports symmetrically arranged on the top horizontal plate of the temporary support. The adjustment support group includes a left fixed support and a right adjusting support symmetrically arranged on the sides of the fixed supports, and a jacking mechanism for jacking the steel box girder is installed on the top horizontal plate of the temporary support. The right adjusting support includes a base fixed on the horizontal plate, an adjustment groove vertically opened in the base, and a hollow outer sleeve on the top of the base, with the outer sleeve corresponding vertically to the adjustment groove. A movable wedge block is laterally slidably fitted, with an upward inclined surface on its top. A motor is mounted on the base, and a screw is fixedly fitted onto the motor's output shaft. A threaded sleeve is fixed to the tail end of the movable wedge block, and the threaded sleeve is fitted onto the screw. A mating cavity corresponding to the movable wedge block is formed inside the front side of the base. A top block is vertically fitted inside the outer sleeve, with an arc-shaped top groove on its top. An arc-shaped pad is fitted inside the arc-shaped top groove, and a fixed wedge block is fixed at the bottom of the top block. The bottom of the fixed wedge block has a lower... The inclined plane has a fixed wedge block that engages with the upper inclined plane of the moving wedge block via its lower inclined plane. When the laser detection component detects that the side of the steel box girder is not horizontally aligned with the adjacent steel box girder, the jacking mechanism lifts the steel box girder, and the motor drives the moving wedge block to move. The upper inclined plane of the moving wedge block engages with the lower inclined plane of the fixed wedge block, and the fixed wedge block pushes the top block upwards synchronously to adjust the height of the top block. When the steel box girder is placed on top of the top block by the jacking mechanism, the side of the steel box girder will be flipped and adjusted by the top block to be horizontally aligned with the adjacent steel box girder.

[0007] Furthermore, the horizontal plate is vertically slidably mounted on the top of the temporary support, and a hydraulic cylinder is provided below the horizontal plate. The bottom of the hydraulic cylinder is vertically fixed on the temporary support. The hydraulic cylinder can push the horizontal plate to move vertically on the temporary support, thereby adjusting the front and rear pitch angles of the steel box girder.

[0008] Furthermore, when the top block moves vertically, the top of the arc-shaped pad block can be kept horizontal by the cooperation between the arc-shaped pad block and the arc-shaped top groove.

[0009] Furthermore, the jacking mechanism includes a body with multiple vertically mounted vertically rectangular hydraulic cylinders at the bottom. A jacking surface is provided at the top of the body, and a jacking body is provided on the jacking surface. The jacking body is slidably mounted on the jacking surface via a slide rail, and is controlled by a horizontal jacking hydraulic cylinder on the side of the body. The vertical and horizontal jacking hydraulic cylinders are connected to an external control hydraulic pump station, which is connected to a controller via a signal connection. The vertical jacking hydraulic cylinders can lift the body, causing the jacking body to push the steel box girder upwards. At the same time, the horizontal jacking hydraulic cylinders can push the jacking body, causing the jacking body to move the steel box girder forward.

[0010] Furthermore, it also includes a pressure-relieving component for relieving pressure on the moving wedge block.

[0011] Furthermore, it also includes adaptive support components for adaptively supporting the steel box girder.

[0012] The beneficial effects of this invention are as follows: This invention has a unique structure and ingenious design. The steel box girder can be hoisted and placed on the fixed support group and adjustable support group above the temporary support. A jacking mechanism is used to move each section of the steel box girder during construction. During the jacking process, a laser detection component detects the position of the steel box girder. When the target on the side of the steel box girder detects that the laser detection head on the adjacent steel box girder is not aligned with its corresponding target, it is determined that there is a positional offset error between the side of the steel box girder and the adjacent steel box girder. Then, the jacking mechanism lifts the steel box girder... The steel box girder is supported by the jacking mechanism. The right-side adjusting top seat no longer bears pressure. The motor on the base can drive the moving wedge block to move. When the moving wedge block moves, it pushes the fixed wedge block. The fixed wedge block moves upward and pushes the top block simultaneously, so that the top block moves vertically within the outer sleeve seat. Adjusting the height of the top block can make the height of the top block consistent with the top block below the adjacent steel box girder. After the top block is adjusted, when the jacking mechanism places the steel box girder on top of the top block, the side of the steel box girder will be flipped and adjusted by the top block due to the change in the height of the top block, so that the side of the steel box girder corresponds horizontally with the adjacent steel box girder.

[0013] During the construction of the steel box girder, the position of the steel box girder can be adjusted by adjusting the right jacking seat during the continuous jacking movement of the steel box girder by the jacking mechanism, so that the adjacent steel box girders are horizontally aligned, and then precise welding and docking can be carried out.

[0014] Alternatively, during the initial jacking of the steel box girder, the fixed support group and the adjustable support group can be regarded as the support body, supporting only the steel box girder. Then, when the jacking mechanism pushes the steel box girder in the middle and later stages, the position of the steel box girder can be adjusted by adjusting the right jacking seat, and then welded together. During the jacking process of the steel box girder, the jacking mechanism can adjust and correct the steel box girder by adjusting the right jacking seat each time. Attached Figure Description

[0015] Figure 1This is one of the schematic diagrams showing the usage state of the present invention.

[0016] Figure 2 This is one of the structural schematic diagrams of the present invention.

[0017] Figure 3 This is the second schematic diagram of the structure of the present invention.

[0018] Figure 4 This is a schematic diagram of the laser detection component.

[0019] Figure 5 This is a side view of the fixed support assembly and the adjustable support assembly.

[0020] Figure 6 This is the front view of the fixed support assembly and the adjustable support assembly.

[0021] Figure 7 This is a schematic diagram of the jacking mechanism.

[0022] Figure 8 This is a schematic diagram of the right-side adjusting top seat.

[0023] Figure 9 for Figure 8 Exploded view.

[0024] Figure 10 This is an internal sectional view of the right-side adjusting top seat.

[0025] Figure 11 This is one of the schematic diagrams of the pressure relief component.

[0026] Figure 12 This is the second schematic diagram of the pressure relief component.

[0027] Figure 13 This is the third schematic diagram of the pressure relief component.

[0028] Figure 14 This is a simplified structural diagram of the adaptive support component.

[0029] In the diagram: 1-Steel box girder, 2-Temporary support, 3-Laser detection assembly, 301-Laser detection head, 302-Target, 4-Fixed support assembly, 401-Left fixed support, 402-Right fixed support, 5-Adjustable support assembly, 501-Left fixed top support, 502-Right adjusting top support, 6-Pushing mechanism, 601-Machine body, 602-Vertical push hydraulic cylinder, 603-Pushing surface, 604-Pushing body, 605-Slide rail, 606-Horizontal push hydraulic cylinder, 7-Base, 701-Adjusting groove. 8-Outer sleeve seat, 9-Moving wedge block, 10-Motor, 11-Screw, 12-Screw sleeve, 13-Matching cavity, 14-Guide rail, 15-Top block, 16-Fixed wedge block, 17-Arc-shaped top groove, 18-Arc-shaped pad block, 19-Horizontal plate, 20-Hydraulic cylinder, 21-Main block, 22-Pressure body, 23-Side top body, 25-Side channel, 26-Auxiliary cylinder, 27-Reset spring, 28-Oil storage tank, 29-Solenoid valve, 30-Push cylinder, 31-Damping valve, 32-Oil pipe. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] In Example 1, after the existing steel box girders are hoisted onto temporary supports, the welding of adjacent steel box girder ends is affected by external hoisting factors, resulting in precision errors between the ends of adjacent steel box girder girders. Simultaneously, the height errors of the various temporary supports also contribute to the problem. When these two types of errors are combined, the welding of the steel box girder ends becomes extremely difficult, requiring multiple hoisting adjustments to the position of the steel box girders to meet construction requirements, thus reducing construction efficiency. Furthermore, the existing steel box girders are directly hoisted onto temporary supports, which lack corresponding adjustment devices. When the left and right ends of adjacent steel box girders are not horizontally aligned, they cannot be rotated left or right for adjustment. Also, when the front and rear ends of adjacent steel box girders are at different heights, they cannot be adjusted, requiring a significant amount of time for position adjustment, thus wasting considerable construction time.

[0032] To address the aforementioned problems, this embodiment provides an adjustment device for improving the construction efficiency and accuracy of steel box girders, such as... Figure 1 and Figure 4 As shown, a laser detection assembly 3 is installed on the steel box girder 1. The laser detection assembly 3 includes laser detection heads that are symmetrically fixedly installed on both sides and the top of the steel box girder 1. Targets 302 corresponding to the laser detection heads 301 are fixedly installed on both sides of the tail end of the adjacent steel box girder 1. Through the cooperation of the laser detection heads 301 and the targets 302, the position of the steel box girder 1 can be detected and fed back, and whether the steel box girder 1 is horizontally aligned with the adjacent steel box girder 1 can be detected.

[0033] And such as Figure 1-3As shown, the system includes multiple temporary supports 2, with a horizontal plate 19 installed on the top of each temporary support 2. A fixed support group 4 is provided on the horizontal plate 19 of the temporary support 2. The fixed support group 4 includes a left fixed support 401 and a right fixed support 402 that are symmetrically fixed on the horizontal plate 19. The left fixed support 401 and the right fixed support 402 can support the steel box girder 1.

[0034] An adjustable support group 5 is provided above the horizontal plate 19 of the temporary support 2. The adjustable support group 5 includes a left fixed top seat 501 and a right adjustable top seat 502 symmetrically arranged on the sides of the fixed support group 4. The left fixed top seat 501 is located below the left side of the steel box girder 1, and the right adjustable top seat 502 is located below the right side of the steel box girder 1. The left fixed top seat 501 can support the steel box girder 1, and the right adjustable top seat 502 can realize the left and right flip adjustment of the steel box girder 1, eliminate the precision error between the ends of adjacent steel box girder 1, reduce the difficulty of welding and connecting the ends of the steel box girder 1, and realize the rapid adjustment of the position of the steel box girder 1. The steel box girder 1 can be hoisted and placed on the fixed support group 4 and the adjustable support group 5.

[0035] like Figure 8-10 As shown, the right adjustment seat 502 includes a base 7, which is fixedly installed on the horizontal plate 19. An adjustment groove 701 is vertically provided inside the base 7. Considering the stability of the base 7, reinforcing ribs can be provided at the bottom of the base 7. An outer sleeve seat 8 is fixedly installed on the top of the base 7, and the outer sleeve seat 8 has a hollow through-structure. The outer sleeve seat 8 corresponds vertically to the adjustment groove 701. A movable wedge block 9 is provided inside the adjustment groove 701. The movable wedge block 9 is laterally slidably fitted onto the inner bottom of the outer sleeve seat 8 via a guide rail 14. The movable wedge block 9 can be adjusted within the outer sleeve... The base 8 slides laterally, and the top of the moving wedge block 9 is provided with an upper inclined surface. A motor 10 is fixedly installed on the side of the base 7. A screw 11 is connected to the output shaft of the motor 10, and a screw sleeve 12 is fixed at the tail end of the moving wedge block 9. The screw sleeve 12 of the moving wedge block 9 is fitted onto the screw 11. A mating cavity 13 corresponding to the moving wedge block 9 is opened on the front side of the interior of the base 7. When the motor 10 drives the screw 11 to rotate, the screw 11 can move the drive screw sleeve 12, so that the moving wedge block 9 moves within the base 7.

[0036] A top block 15 is vertically fitted inside the outer casing 8. A fixed wedge block 16 corresponding to the moving wedge block 9 is fixed to the bottom of the top block 15. The bottom of the fixed wedge block 16 has a lower inclined surface. The fixed wedge block 16 is in contact with the upper inclined surface of the moving wedge block 9 through the lower inclined surface. The length of the moving wedge block 9 is greater than that of the fixed wedge block 16. When the moving wedge block 9 moves, the upper inclined surface of the moving wedge block 9 is in contact with the lower inclined surface of the fixed wedge block 16. The fixed wedge block 16 can push the top block 15 upward synchronously to adjust the height of the top block 15. An arc-shaped top groove 17 is opened on the top of the top block 15. An arc-shaped pad 18 is fitted inside the arc-shaped top groove 17. When the top block 15 moves vertically, the arc-shaped pad 18 is kept in a horizontal state and in contact with the steel box girder 1 through the mutual cooperation between the arc-shaped pad 18 and the arc-shaped top groove 17.

[0037] like Figure 5 As shown, the horizontal plate 19 is vertically slidably mounted on the top of the temporary support 2. A hydraulic cylinder 20 is provided below the horizontal plate 19. The bottom of the hydraulic cylinder 20 is vertically fixed on the temporary support 2. At the same time, an anti-detachment component is provided between the horizontal plate 19 and the temporary support 2 to prevent the horizontal plate 19 from detaching from the temporary support 2. The hydraulic cylinder 20 can push the horizontal plate 19 to move vertically on the temporary support 2, thereby adjusting the front and rear pitch angles of the steel box girder 1.

[0038] like Figure 7 As shown, the pushing mechanism 6 includes a body 601. The bottom of the body 601 is rectangular and vertically mounted with multiple vertically pushing hydraulic cylinders 602. The top of the body 601 is provided with a pushing surface 603, which is composed of mirror stainless steel and polytetrafluoroethylene. A pushing body 604 is provided on the pushing surface 603. The pushing body 604 is slidably mounted on the pushing surface 603 along the sliding rail 605. The pushing body 604 is controlled by a horizontally pushing hydraulic cylinder 606 on the side of the body 601. The vertically pushing hydraulic cylinders 602 and the horizontally pushing hydraulic cylinders 606 are connected to an external control hydraulic pump station. The control hydraulic pump station is connected to the controller signal. The vertical hydraulic cylinder 602 can lift the machine body 601, causing the pusher body 604 to push the steel box girder 1 upward. After the steel box girder 1 is lifted, the horizontal hydraulic cylinder 606 can push the pusher body 604, causing the pusher body 604 to move the steel box girder 1 forward. After the pusher body 604 moves the steel box girder 1 forward, the vertical hydraulic cylinder 602 retracts and lowers the machine body 601, gradually placing the steel box girder 1 onto the fixed support group 4 and the adjusting support group 5. The fixed support group 4 and the adjusting support group 5 support the steel box girder 1. After the pusher body 604 is separated from the steel box girder 1, the horizontal hydraulic cylinder 606 retracts and pulls the pusher body 604 back to its original position.

[0039] The steel box girder 1 is hoisted and placed on the fixed support group 4 and the adjusting support group 5 above the temporary support 2. When hoisting adjacent steel box girders 1, there is a construction gap at the ends of the adjacent steel box girders 1. Then, the jacking mechanism 6 is used to jack and move each section of the steel box girder 1. During the jacking process of the jacking mechanism 6, the position of the steel box girder 1 is detected by the laser detection component 3. When the target 302 on the side of the steel box girder 1 detects that the laser detection head 301 on the adjacent steel box girder 1 is not aligned with its corresponding target, it is determined that there is a positional offset error between the side of the steel box girder 1 and the adjacent steel box girder 1. Then, the jacking mechanism 6 lifts the steel box girder 1 and then moves it. With the support adjusted, the right-hand top seat 502 no longer bears pressure. At this time, the motor 10 on the base 7 drives the screw sleeve 12 through the screw 11, which drives the moving wedge block 9 to move. When the moving wedge block 9 moves, it pushes the fixed wedge block 16. The fixed wedge block 16 moves upward and pushes the top block 15 simultaneously, so that the top block 15 moves vertically within the outer sleeve seat 8. Adjusting the height of the top block 15 can make the height of the top block 15 consistent with the height of the top block 15 below the adjacent steel box beam 1. After the top block 15 is adjusted, when the pushing mechanism 6 places the steel box beam 1 on top of the top block 15, the side of the steel box beam 1 will be flipped and adjusted by the top block 15 due to the change in the height of the top block 15, so that the side of the steel box beam 1 is horizontally aligned with the adjacent steel box beam 1.

[0040] It should be noted that during the continuous pushing of the steel box girder 1 by the jacking mechanism 6, the position of the steel box girder 1 can be adjusted by the right adjustment jacking seat 502 so that the adjacent steel box girders 1 are horizontally aligned, and then precise welding and docking can be carried out.

[0041] Alternatively, during the initial jacking of the steel box girder 1 by the jacking mechanism 6, the fixed support group 4 and the adjusting support group 5 can be regarded as the support body, supporting only the steel box girder 1. Then, when the jacking mechanism 6 pushes the steel box girder 1 in the middle and later stages, the position of the steel box girder 1 can be adjusted by the right adjusting top seat 502, and then welded together. During the jacking process of the jacking mechanism 6, the steel box girder 1 can be adjusted and corrected by the right adjusting top seat 502 each time.

[0042] When the target 302 on the top of the steel box girder 1 detects that the laser detection head 301 on the adjacent steel box girder 1 is not aligned with its corresponding target, it is determined that there is a positional offset error between the end of the steel box girder 1 and the adjacent steel box girder 1. The hydraulic cylinder 20 is then controlled to push the horizontal plate 19 to move vertically on the temporary support 2, thereby adjusting the pitch angle of the end of the steel box girder 1 so that the end of the steel box girder 1 is horizontally aligned with the adjacent steel box girder 1.

[0043] Preferably, when the top block 15 supports the steel box girder 1, the fixed wedge block 16 will be simultaneously subjected to the downward pressure of the steel box girder 1. When the fixed wedge block 16 is under pressure, it will have a rightward sliding thrust, causing it to push the moving wedge block 9 to the right, directly transmitting the pressure to the threaded sleeve 12. This causes the screw 11 to bear the thrust of the threaded sleeve 12, reducing the service life of the screw 11 and the threaded sleeve 12. Therefore, a pressure-relieving component is provided, such as... Figure 10-13 As shown, the moving wedge block 9 consists of a main block 21 and a pressing body 22. The pressing body 22 is vertically fitted inside the main block 21, and the bottom of the pressing body 22 is symmetrically provided with a left inclined surface and a right inclined surface. The inner bottom of the main block 21 is symmetrically provided with side top bodies 23 that cooperate with the pressing body 22. The side inclined surfaces of the left and right side top bodies 23 respectively cooperate and contact the left and right inclined surfaces of the bottom of the pressing body 22. Lateral channels 25 corresponding to the side top bodies 23 are opened through the two sides of the main block 21. There is a reserved gap between the lateral channels 25 and the inner wall of the base 7.

[0044] When the top block 15 supports the steel box girder 1 and the pressure body 22 is simultaneously subjected to the downward pressure of the steel box girder 1, the pressure body 22 will press down on the side top body 23 when under pressure. After being compressed, the side top body 23 will move to both sides, converting the gravity of the pressure body 22 into lateral top pressure. When the side top body 23 moves, it will pass through the lateral channel 25 and press laterally against the inner wall of the base 7. The lateral top pressure of the side top body 23 will increase with the gravity of the pressure body 22. That is to say, the greater the pressure on the pressure body 22, the greater the lateral top pressure of the side top body 23. On the one hand, it can ensure the stability of the top block 15 supporting the steel box girder 1, and on the other hand, it can relieve the pressure between the screw rod 11 and the screw sleeve 12.

[0045] Preferably, the fixed support assembly 4 is securely mounted on the temporary support 2. When the steel box girder 1 is lowered by the jacking mechanism 6, it will be placed on the fixed support assembly 4. The fixed support assembly 4 may not be able to provide adaptive support for the steel box girder 1, so an adaptive support component is provided, such as... Figure 14 As shown in the simplified diagram, an auxiliary oil cylinder 25 can be vertically installed on the horizontal plate 19, and a push oil cylinder 29 is vertically fixedly installed on the top of the fixed support. The fixed support and the push oil cylinder 29 form an adaptive support body. A return spring 26 is provided between the piston rod and the cylinder body inside the auxiliary oil cylinder 25, which can reset the piston rod of the auxiliary oil cylinder 25. The oil chamber of the auxiliary oil cylinder 25 and the oil chamber of the push oil cylinder 29 are connected by an oil pipe 31. The oil storage tank 27 is connected to the oil pipe 31 through a branch pipe, and a damping valve 30 and a solenoid valve 28 are provided on the branch pipe.

[0046] As the steel box girder 1 is gradually lowered onto the temporary support 2 by the jacking mechanism 6, the output end of the auxiliary cylinder 25 first contacts the steel box girder 1 and is compressed by it. The piston rod of the auxiliary cylinder 25 is compressed, pushing the hydraulic oil in the oil chamber through the oil pipe 31 into the oil chamber of the lifting cylinder. Under the action of the damping valve 30, the hydraulic oil will not enter the oil storage tank 27. Then, the output end of the lifting cylinder is pushed upward. During the lowering process, the steel box girder 1 gradually compresses the piston rod of the auxiliary cylinder 25, causing the output end of the lifting cylinder to be gradually pushed upward until the output end of the lifting cylinder contacts the steel box girder 1. At this time, the output end of the auxiliary cylinder 25 and the output end of the lifting cylinder are in a horizontal state, and the steel box girder 1 does not contact the adjusting support group 5. The steel box girder 1 is still supported by the jacking mechanism 6.

[0047] Then, the steel box girder 1 continues to compress the auxiliary cylinder 25 and the lifting cylinder. The hydraulic oil in the oil chambers of the auxiliary cylinder 25 and the lifting cylinder enters the oil storage tank 27 through the damping valve 30. When the steel box girder 1 contacts the adjusting support group 5, the jacking mechanism 6 is still supporting the steel box girder 1. At this time, the position of the steel box girder 1 is detected and fed back using the laser detection component 3, and the steel box girder 1 is flipped and adjusted by the right adjusting top seat 502. After the steel box girder 1 is adjusted, the solenoid valve 28 closes, locking the auxiliary cylinder 25 and the lifting cylinder to achieve adaptive support for the steel box girder 1. Then, the jacking mechanism 6 no longer supports the steel box girder 1, and the steel box girder 1 is supported by the auxiliary cylinder 25, the lifting cylinder, and the adjusting support group 5. The above description is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustment device for improving the construction efficiency and accuracy of steel box girders, comprising a temporary support, wherein a horizontal plate is installed on the top of the temporary support, characterized in that, It also includes a laser detection assembly, a fixed support assembly, an adjustable support assembly, and a jacking mechanism. The laser detection assembly includes laser detection heads symmetrically arranged on the sides and top of the steel box girder, and targets corresponding to the laser detection heads are provided on both sides and top of the tail ends of adjacent steel box girders. Through the cooperation of the laser detection heads and targets, the position of the steel box girder can be detected and fed back. The fixed support assembly includes fixed supports symmetrically arranged on the top horizontal plate of the temporary support. The adjustable support assembly includes a left fixed support and a right adjustable support symmetrically arranged on the sides of the fixed supports, and on the top horizontal plate of the temporary support... A jacking mechanism for jacking the steel box girder is installed on the upper part; the right adjusting jacking seat includes a base fixed to a horizontal plate, an adjusting groove vertically opened in the base, and a hollow outer sleeve on the top of the base, with the outer sleeve corresponding vertically to the adjusting groove. A movable wedge block is slidably fitted in the adjusting groove, and the top of the movable wedge block has an upper inclined surface. A motor is installed on the base, and a screw is fixedly fitted on the output shaft of the motor. A threaded sleeve is fixed to the tail end of the movable wedge block, and the threaded sleeve is fitted onto the screw. A mating cavity corresponding to the movable wedge block is opened on the front side of the interior of the base; the outer sleeve contains... The vertically fitting assembly includes a top block with an arc-shaped groove at its top. An arc-shaped pad is fitted inside the arc-shaped groove. A fixed wedge block is fixed at the bottom of the top block, and the bottom of the fixed wedge block has a downward inclined surface. The fixed wedge block contacts the upper inclined surface of the moving wedge block through its downward inclined surface. The moving wedge block consists of a main block and a pressure body. The pressure body is vertically fitted inside the main block, and the bottom of the pressure body has symmetrical left and right inclined surfaces. The main block also has symmetrically placed side top bodies on the left and right sides at its inner bottom, which mate with the pressure body. The side inclined surfaces of the left and right side top bodies mate with the left and right inclined surfaces of the bottom of the pressure body, respectively. The main body has lateral channels on both sides corresponding to the side top body, and there is a reserved gap between the lateral channels and the inner wall of the base. When the laser detection component detects that the side of the steel box girder is not horizontally aligned with the adjacent steel box girder, the jacking mechanism lifts the steel box girder, and the motor drives the moving wedge block to move. The upper inclined surface of the moving wedge block cooperates with the lower inclined surface of the fixed wedge block. The fixed wedge block pushes the top block upward synchronously to adjust the height of the top block. When the steel box girder is placed on the top block by the jacking mechanism, the side of the steel box girder will be flipped and adjusted by the top block to be horizontally aligned with the adjacent steel box girder.

2. The adjustment device for improving the construction efficiency and accuracy of steel box girders according to claim 1, characterized in that, The horizontal plate is vertically slidably mounted on the top of the temporary support. A hydraulic cylinder is located below the horizontal plate. The bottom of the hydraulic cylinder is vertically fixed on the temporary support. The hydraulic cylinder can push the horizontal plate to move vertically on the temporary support, thereby adjusting the front and rear tilt angle of the steel box girder.

3. The adjustment device for improving the construction efficiency and accuracy of steel box girders according to claim 1, characterized in that, When the top block moves vertically, the top of the arc-shaped pad block can be kept horizontal by the cooperation between the arc-shaped pad block and the arc-shaped top groove.

4. The adjustment device for improving the construction efficiency and accuracy of steel box girders according to claim 1, characterized in that, The jacking mechanism includes a body with multiple vertically mounted vertically rectangular hydraulic cylinders at the bottom. A jacking surface is provided at the top of the body, and a jacking body is provided on the jacking surface. The jacking body is slidably mounted on the jacking surface via a slide rail, and is controlled by a horizontal jacking hydraulic cylinder on the side of the body. The vertical and horizontal jacking hydraulic cylinders are connected to an external control hydraulic pump station, which is connected to a controller via a signal connection. The vertical jacking hydraulic cylinders can lift the body, causing the jacking body to push the steel box girder upwards. At the same time, the horizontal jacking hydraulic cylinders can push the jacking body, causing the jacking body to move the steel box girder forward.

5. The adjustment device for improving the construction efficiency and accuracy of steel box girders according to claim 1, characterized in that, It also includes a pressure-relieving component for relieving pressure on the moving wedge block.

6. The adjustment device for improving the construction efficiency and accuracy of steel box girders according to claim 1, characterized in that, It also includes adaptive support components for adaptively supporting the steel box girder.

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