A hoisting device for bridge engineering construction

Abstract

The present application provides a hoisting device for bridge engineering construction, which relates to the field of hoisting technology, including two brackets, rollers installed at the bottom of the brackets, and a main beam and a hoisting group installed between the two brackets; the main beam is spliced ​​by multiple parts and installed vertically on the bracket, and each bracket is provided with an auxiliary beam, a first moving groove is provided on the bracket, and a second moving groove is provided on the main beam corresponding to the first moving groove, and a moving mechanism is installed on the bracket, and the moving mechanism can drive the auxiliary beam to move along the first moving groove and the second moving groove, and the hoisting group is installed on the auxiliary beam, and the hoisting group can move on the auxiliary beam, and the hoisting group is used to hoist objects; when the main beam needs to be installed on the bracket, an auxiliary beam is installed on one bracket and the two auxiliary beams cooperate with each other. The present application can reduce the demand for construction sites and the difficulty of operation during the installation process.

Description

Technical Field

[0001] The present application relates to the field of hoisting technology, and in particular to a hoisting device for bridge engineering construction. Background Art

[0002] Commonly used lifting devices in bridge construction include cranes, traveling cranes and hoists, while beam lifting machines are a type of crane specially designed for bridge construction. The beam lifting machine is mainly composed of a support, a main beam, a beam lifting rope, a main hook and an auxiliary hook, and is used to lift and install bridge components such as beams and plate beams. The beam lifting machine has high lifting efficiency and accuracy, and usually plays an important role in bridge construction.

[0003] In order to facilitate transportation, most of the beam lifting machines are built with a large span, but the use site of each construction site is different, and the different use spans of the beam lifting machines need to be adjusted at different construction sites. Referring to the Chinese patent document with the authorization announcement number CN116040475B, which is named as an easy-to-operate variable span beam lifting machine, two brackets are provided in the patent, and rollers are connected to the bottom of the two brackets. A main beam is provided on the two brackets, and a lifting group for lifting objects is installed on the main beam. When changing the span, the airflow generated by the fan is blocked by the connecting seat on one side of the hollow box through the connecting pipe 2 at the same time, so that the connecting seat and the bracket 1 slide along the connecting shaft 1 at the same time, and the transmitter sends a start signal to the hydraulic cylinder on the main beam, which makes the hydraulic cylinder located in the upper part of the beam lifting machine and the fan located in the lower part of the beam lifting machine push the bracket that needs to change the span at the same time in the same time period. Through the cooperation of the two pushes, the distance between the two brackets is close to each other.

[0004] Referring to the above technical solution, the length of the main beam cannot be changed by changing the span by moving the bracket. In order to place the main beam, the space requirement for the construction site is high, and the main beam is usually assembled from multiple sections. When assembling the beam lifting machine, it is usually necessary to assemble the multiple sections into the main beam on the ground first. In order to ensure the splicing effect of the main beam, the flatness of the ground is required to be high, and the operation is difficult. When the main beam is hoisted to the bracket for installation by a crane, the main beam is heavy and not easy to hoist. Summary of the invention

[0005] In order to improve the technical problems of construction site requirements and operation difficulty during the installation process, the present application provides a hoisting device for bridge engineering construction.

[0006] The present application provides a lifting device for bridge engineering construction, which adopts the following technical scheme: a lifting device for bridge engineering construction, comprising two brackets, rollers installed at the bottom of the brackets, and a main beam and a lifting group installed between the two brackets; the main beam is composed of a combination of multiple components, and each bracket is provided with an auxiliary beam, the bracket is provided with a first movable groove, the main beam is provided with a second movable groove connected to the first movable groove, a moving mechanism is installed on the bracket, and the moving mechanism can drive the auxiliary beam to move along the first movable groove and the second movable groove, the lifting group is slidably connected to the auxiliary beam, and the lifting group is used to lift components; wherein the two auxiliary beams can cooperate with each other.

[0007] By adopting the above technical solution, when the main beam needs to be installed on the bracket, the hoisting group first moves the component to the bottom of the auxiliary beam, then moves the component and installs it on the bracket on one side, and then continues to hoist the moving component and assembles the component. When the length of the assembled component is close to the sum of the lengths of the two auxiliary beams, the moving mechanism drives the two auxiliary beams to move along the first moving groove and the second moving groove to the side away from the bracket where the component is installed. At the same time, the bracket moves, and the distance between the two brackets increases. Then, continue to hoist the moving component and assemble the component, and repeat the process of moving the auxiliary beams and the bracket until the required main beam length is reached.

[0008] In the present application, the provision of the auxiliary beam and the hoisting group can change the process of splicing the main beam on the ground to hoisting the components onto the bracket for splicing and installation, which reduces the requirements for ground flatness. Hoisting the components can reduce the limitation of large-tonnage cranes required for installation, making hoisting convenient. When the span needs to be adjusted, the auxiliary beam can cooperate with the bracket to move to adjust the distance between the brackets. At the same time, during the movement, the auxiliary beam can assist in the installation and disassembly of the components without occupying excess space and without having to dismantle the entire main beam to the ground for adjustment.

[0009] Optionally, the total length of the two auxiliary beams is greater than the length of one of the components.

[0010] By adopting the above technical solution, the total length requirement of the auxiliary beam avoids the risk of being unable to hoist components.

[0011] Optionally, the moving mechanism includes a rotation source installed in the auxiliary beam, the driving shaft of the rotation source passes through the bottom of the auxiliary beam and is fixedly connected to a gear, and the first moving groove and the second moving groove are both fixedly connected to a first rack that can mesh with the gear.

[0012] By adopting the above technical solution, when the auxiliary beam needs to move, the rotation source is started, the rotation source drives the gear to rotate, the gear rotates and meshes with the first rack, and the auxiliary beam moves along the first moving groove and the second moving groove.

[0013] Optionally, a third movable groove is provided on both of the two brackets, and the third movable groove is perpendicular to the first movable groove. The third movable grooves on the two brackets are respectively located on both sides of the first movable groove. The third movable groove is provided with a second rack that can mesh with the gear. A rotating mechanism is installed on the bracket, and the rotating mechanism is used to drive the auxiliary beam to rotate, wherein both ends of the auxiliary beam can be placed on the corresponding brackets at the same time.

[0014] By adopting the above technical solution, both ends of the auxiliary beam are placed on the bracket at the same time initially, so that the center of gravity of the auxiliary beam can be on the bracket, which is beneficial to improving the stability of the bracket. When the main beam needs to be installed, the rotating mechanism first drives the auxiliary beam to rotate, and then the auxiliary beams on the two brackets are matched, and then the bracket is moved, and the rotating source is started at the same time. The driving shaft of the rotating source rotates to drive the gear to rotate, and the gear rotates to engage with the second rack. Through the movement of the bracket, the push of the rotating mechanism and the movement of the auxiliary beam along the third moving groove, the two auxiliary beams can move to the intersection of the first moving groove and the third moving groove on the corresponding bracket. At this time, the two auxiliary beams are perpendicular to the bracket.

[0015] By setting the auxiliary beam to rotate, the center of gravity of the auxiliary beam can be on the bracket at the beginning, which is beneficial to ensure the stability of the bracket. When the main beam needs to be installed, the two auxiliary beams can be rotated to the vertical bracket, thereby assisting the process of installing the components on the bracket.

[0016] Optionally, the rotating mechanism includes a fixed plate fixedly connected to the bracket, the fixed plate is located on a side of the bracket away from the third movable groove, a sliding plate is slidably connected to the fixed plate, a first linear actuator is installed on the bracket, the telescopic end of the first linear actuator is fixedly connected to the sliding plate, a telescopic frame is installed on the sliding plate, a push plate is fixedly connected to one end of the telescopic frame away from the sliding plate, and a second linear actuator is hinged on the sliding plate that can drive the telescopic frame to extend and retract.

[0017] By adopting the above technical solution, when the auxiliary beam needs to rotate, the second linear drive is started, the telescopic end of the second linear drive moves and pushes the telescopic frame to unfold, the unfolding of the telescopic frame drives the push plate to move, the movement of the push plate pushes the auxiliary beam, and the auxiliary beam rotates around the driving shaft of the rotation source.

[0018] Optionally, a guide groove is provided at the bottom of the auxiliary beam, and a guide block capable of cooperating with the guide groove is fixedly connected to the main beam.

[0019] By adopting the above technical solution and arranging the guide groove and the guide block, the component can move along the guide groove after being moved upward, thereby facilitating the installation of the component.

[0020] Optionally, a rotating wheel is installed at the bottom of the auxiliary beam, and the rotating wheel can abut against the main beam.

[0021] By adopting the above technical solution and setting the rotating wheel, the resistance of the auxiliary beam when moving can be reduced, thus facilitating the movement of the auxiliary beam.

[0022] Optionally, the second linear actuator is a hydraulic push rod.

[0023] By adopting the above technical solution, the hydraulic push rod has a high load-bearing capacity, which facilitates the pushing of the auxiliary beams, and the pushing process of the hydraulic push rod is stable, which facilitates the coordination between the auxiliary beams.

[0024] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0025] 1. In the present application, the setting of the auxiliary beam and the hoisting group can change the method of splicing the main beam on the ground to hoisting the components onto the bracket for splicing and installation, which reduces the requirements for the flatness of the ground. The hoisting of the components can reduce the limitation of large-tonnage cranes required for installation, and the hoisting is convenient. When the span needs to be adjusted, the auxiliary beam can cooperate with the bracket to move to adjust the distance between the brackets. At the same time, the auxiliary beam can assist in the installation and disassembly of the components during the movement, without occupying extra space and without having to dismantle the entire main beam to the ground for adjustment, thereby reducing the consumption of manpower and material resources.

[0026] 2. By setting the auxiliary beam to rotate, the center of gravity of the auxiliary beam can be on the bracket at the beginning, which is conducive to ensuring the stability of the bracket. When the main beam needs to be installed, the two auxiliary beams can be rotated to the vertical bracket, thereby assisting the process of installing the components on the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The structure of the embodiment of the present application is shown in FIG. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the structure of the guide block in the embodiment of the present application;

[0029] Figure 3 For the embodiment of this application Figure 2 A partial enlarged view of the middle area A;

[0030] Figure 4 This is a schematic diagram of the structure of the guide groove in the embodiment of the present application;

[0031] Figure 5 This is a schematic diagram of the structure of the main beam in the embodiment of the present application;

[0032] Figure 6 This is a schematic diagram of the structure when the auxiliary beam is located on the bracket in the embodiment of the present application;

[0033] Figure 7 This is a schematic diagram of the structure after the two auxiliary beams cooperate in the embodiment of the present application;

[0034] Figure 8 The structure of the embodiment of the present application is shown in FIG. Figure 2 ;

[0035] Fig. 9 Schematic diagram of the structure of the rotating mechanism in the embodiment of the present application.

[0036] Explanation of the reference numerals: 1. bracket; 11. roller; 12. first movable groove; 13. third movable groove; 131. second rack; 2. main beam; 21. component; 22. second movable groove; 23. guide block; 3. lifting group; 4. auxiliary beam; 41. guide groove; 42. rotating wheel; 5. moving mechanism; 51. rotation source; 52. gear; 53. first rack; 6. rotating mechanism; 61. fixed plate; 62. sliding plate; 63. first linear drive; 64. telescopic frame; 65. push plate; 66. second linear drive. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 9 , the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0038] Reference Figure 1 and Figure 2 A hoisting device for bridge engineering construction comprises two brackets 1, a roller 11 installed at the bottom of the bracket 1, a main beam 2 and a hoisting group 3 installed between the two brackets 1, the hoisting group 3 is a prior art, the main beam 2 is composed of a plurality of components 21, each bracket 1 is provided with an auxiliary beam 4, a first movable groove 12 is provided on the bracket 1, a second movable groove 22 is provided on the main beam 2 corresponding to the first movable groove 12, the first movable groove 12 is communicated with the second movable groove 22, a moving mechanism 5 is installed on the bracket 1, the moving mechanism 5 can drive the auxiliary beam 4 to move along the first movable groove 12 and the second movable groove 22, the hoisting group 3 is slidably connected to the auxiliary beam 4, the hoisting group 3 is used to hoist the component 21, the two auxiliary beams 4 can cooperate with each other, a clamping plate that can clamp the two auxiliary beams 4 is inserted between the two auxiliary beams 4, and the total length of the two auxiliary beams 4 is greater than the length of one component 21.

[0039] When the main beam 2 needs to be installed on the bracket 1, the hoisting group 3 first moves the component 21 to the bottom of the auxiliary beam 4, then moves the component 21 and installs it on the bracket 1 on one side, and then continues to hoist the moving component 21 and assembles the component 21. When the length of the assembled component 21 is close to the sum of the lengths of the two auxiliary beams 4, the moving mechanism 5 drives the two auxiliary beams 4 to move along the first moving groove 12 and the second moving groove 22 to the side away from the bracket 1 where the component 21 is installed. At the same time, the bracket 1 moves, and the distance between the two brackets 1 increases. Then, the moving component 21 continues to be hoisted and assembled, and the process of moving the auxiliary beams 4 and the bracket 1 is repeated until the required length of the main beam 2 is reached.

[0040] In the present application, the setting of the auxiliary beam 4 and the hoisting group 3 can change the method of splicing the main beam 2 on the ground to hoisting the component 21 onto the bracket 1 for splicing and installation, which reduces the requirement for ground flatness, and hoisting the component 21 can reduce the limitation of large-tonnage crane required for installation, and the hoisting is convenient. When the span needs to be adjusted, the auxiliary beam 4 can cooperate with the bracket 1 to move to adjust the distance between the brackets 1. At the same time, during the movement, the auxiliary beam 4 can assist in the installation and disassembly of the component 21 without occupying extra space and without having to disassemble the main beam 2 completely to the ground for adjustment, thereby reducing the consumption of manpower and material resources.

[0041] Reference Figures 1 to 5 The moving mechanism 5 includes a rotation source 51, a gear 52 and a first rack 53. The rotation source 51 is installed in the auxiliary beam 4. The driving shaft of the rotation source 51 passes through the bottom of the auxiliary beam 4 and is fixedly connected to the gear 52. The first rack 53 is fixedly connected to the first moving groove 12 and the second moving groove 22 and can mesh with the gear 52. A first dovetail groove is opened on the bracket 1 below the first moving groove 12, and a second dovetail groove is opened on the main beam 2 below the second moving groove 22. A dovetail block is rotatably connected below the gear 52, and the dovetail block can cooperate with the first dovetail groove and the second dovetail groove.

[0042] When the auxiliary beam 4 needs to move, the rotation source 51 is started, the rotation source 51 drives the gear 52 to rotate, the gear 52 rotates and meshes with the first rack 53, and the auxiliary beam 4 moves along the first moving groove 12 and the second moving groove 22.

[0043] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7A third movable groove 13 is provided on both brackets 1, and the third movable groove 13 is perpendicular to the first movable groove 12. The third movable grooves 13 on the two brackets 1 are respectively located on both sides of the first movable groove 12. The third movable groove 13 is provided with a second rack 131 that can mesh with the gear 52. A third dovetail groove is provided on the bracket 1 below the third movable groove 13, and the dovetail block can slide along the third dovetail groove. A rotating mechanism 6 is installed on the bracket 1, and the rotating mechanism 6 is used to drive the auxiliary beam 4 to rotate, wherein both ends of the auxiliary beam 4 can be placed on the corresponding bracket 1 at the same time.

[0044] Initially, both ends of the auxiliary beam 4 are placed on the bracket 1 at the same time, so that the center of gravity of the auxiliary beam 4 is on the bracket 1, which is beneficial to improve the stability of the bracket 1. When the main beam 2 needs to be installed, the rotating mechanism 6 first pushes the auxiliary beam 4 to rotate, and then the auxiliary beams 4 located on the two brackets 1 cooperate, and then the bracket 1 is moved, and the rotation source 51 is started at the same time. The driving shaft of the rotation source 51 rotates to drive the gear 52 to rotate, and the gear 52 rotates to engage with the second rack 131. Through the movement of the bracket 1, the push of the rotating mechanism 6 and the movement of the auxiliary beam 4 along the third moving groove 13, the two auxiliary beams 4 can move to the intersection of the first moving groove 12 and the third moving groove 13 on the corresponding bracket 1. At this time, the two auxiliary beams 4 are perpendicular to the bracket 1.

[0045] By setting the auxiliary beam 4 to rotate, the center of gravity of the auxiliary beam 4 can be on the bracket 1 initially, which is beneficial to ensuring the stability of the bracket 1. When the main beam 2 needs to be installed, the two auxiliary beams 4 can be rotated to be perpendicular to the bracket 1, thereby assisting the process of installing the component 21 on the bracket 1.

[0046] Reference Figures 7 to 9 The rotating mechanism 6 includes a fixed plate 61, a sliding plate 62, a first linear driver 63, a telescopic frame 64, a second linear driver 66 and a push plate 65. The fixed plate 61 is fixedly connected to the bracket 1, and the fixed plate 61 is located on the side of the bracket 1 away from the third moving groove 13. The sliding plate 62 is slidably connected to the fixed plate 61. The first linear driver 63 is installed on the bracket 1. The telescopic end of the first linear driver 63 is fixedly connected to the sliding plate 62. The telescopic frame 64 is installed on the sliding plate 62. The push plate 65 is fixedly connected to one end of the telescopic frame 64 away from the sliding plate 62. The second linear driver 66 is hinged on the sliding plate 62 and can drive the telescopic frame 64 to extend and retract.

[0047] When the auxiliary beam 4 needs to rotate, the second linear actuator 66 is started, the telescopic end of the second linear actuator 66 moves and pushes the telescopic frame 64 to unfold, the unfolding of the telescopic frame 64 drives the push plate 65 to move, the push plate 65 moves to push the auxiliary beam 4, and the auxiliary beam 4 rotates around the driving axis of the rotation source 51.

[0048] Reference Figures 2 to 5A guide groove 41 is provided at the bottom of the auxiliary beam 4 , and a guide block 23 which can cooperate with the guide groove 41 is fixedly connected to the main beam 2 .

[0049] By providing the guide groove 41 and the guide block 23 , the component 21 can move along the guide groove 41 after being moved upward, thereby facilitating the installation of the component 21 .

[0050] Reference Figure 2 , Figure 4 and Figure 5 A rotating wheel 42 is installed at the bottom of the auxiliary beam 4. The rotating wheel 42 is located on both sides of the rotation source 51, and the rotating wheel 42 can abut against the bracket 1 and the main beam 2.

[0051] By providing the rotating wheel 42 , the resistance of the auxiliary beam 4 during movement can be reduced, thus facilitating the movement of the auxiliary beam 4 .

[0052] The second linear actuator 66 is a hydraulic push rod.

[0053] The hydraulic push rod has a high load-bearing capacity, which facilitates pushing the auxiliary beam 4 , and the pushing process of the hydraulic push rod is stable, which facilitates the coordination between the auxiliary beams 4 .

[0054] The implementation principle of a hoisting device for bridge engineering construction in the embodiment of the present application is as follows:

[0055] When the main beam 2 needs to be installed, the second linear actuator 66 is first started. The extension of the telescopic end of the second linear actuator 66 drives the extension of the telescopic frame 64. The extension of the telescopic frame 64 drives the push plate 65 to move. The push plate 65 moves to push the auxiliary beam 4. Then the auxiliary beams 4 on the two brackets 1 cooperate, start the rotation source 51 and move the bracket 1. The rotation of the rotation source 51 drives the gear 52 to rotate. The gear 52 rotates and engages with the second rack 131. The auxiliary beam 4 moves along the third moving groove 13. Then the two auxiliary beams 4 rotate to a position perpendicular to the bracket 1. The hoisting group 3 hoists the component 21 to the bottom of the auxiliary beam 4 and moves the component. 21 and install component 21 on the bracket 1, then continue to hoist and move component 21 and assemble component 21. When the length of the assembled component 21 is close to the sum of the lengths of the two auxiliary beams 4, the rotation source 51 continues to drive the gear 52 to rotate, the gear 52 engages with the first rack 53, and the auxiliary beam 4 moves along the first moving groove 12 and the second moving groove 22. At the same time, one side bracket 1 moves, and the distance between the two brackets 1 increases. Then continue to hoist and move component 21 and assemble component 21, and repeat the process of moving the auxiliary beam 4 and the bracket 1 until the component 21 is spliced ​​to reach the required length of the main beam 2.

[0056] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A hoisting device for bridge engineering construction, comprising two brackets, rollers installed at the bottom of the brackets, and a main beam and a hoisting group installed between the two brackets, characterized in that: The main beam is composed of a plurality of components, each bracket is provided with an auxiliary beam, the bracket is provided with a first movable groove, the main beam is provided with a second movable groove connected to the first movable groove, a moving mechanism is installed on the bracket, the moving mechanism can drive the auxiliary beam to move along the first movable groove and the second movable groove, the hoisting group is slidably connected to the auxiliary beam, and the hoisting group is used to hoist the components; Among them, the two auxiliary beams can cooperate with each other; A third moving groove is provided on each of the two brackets, the third moving groove is perpendicular to the first moving groove, the third moving grooves on the two brackets are respectively located on both sides of the first moving groove, and a rotating mechanism is installed on the bracket, and the rotating mechanism is used to drive the auxiliary beam to rotate; The rotating mechanism includes a fixed plate fixedly connected to the bracket, the fixed plate is located on a side of the bracket away from the third movable groove, a sliding plate is slidably connected to the fixed plate, a first linear actuator is installed on the bracket, a telescopic end of the first linear actuator is fixedly connected to the sliding plate, a telescopic frame is installed on the sliding plate, a push plate is fixedly connected to one end of the telescopic frame away from the sliding plate, and a second linear actuator that can drive the telescopic frame to extend and retract is hinged on the sliding plate.

2. A hoisting device for bridge engineering construction according to claim 1, characterized in that: The total length of the two auxiliary beams is greater than the length of one of the components.

3. A hoisting device for bridge engineering construction according to claim 2, characterized in that: The moving mechanism includes a rotation source installed in the auxiliary beam, a driving shaft of the rotation source passes through the bottom of the auxiliary beam and is fixedly connected to a gear, and the first moving groove and the second moving groove are both fixedly connected to a first rack that can mesh with the gear.

4. A hoisting device for bridge engineering construction according to claim 3, characterized in that: The third movable groove is provided with a second rack which can mesh with the gear, and both ends of the auxiliary beam can be placed on corresponding brackets at the same time.

5. A hoisting device for bridge engineering construction according to claim 1, characterized in that: A guide groove is provided at the bottom of the auxiliary beam, and a guide block which can cooperate with the guide groove is fixedly connected to the main beam.

6. A hoisting device for bridge construction according to claim 5, characterized in that: A rotating wheel is installed at the bottom of the auxiliary beam, and the rotating wheel can abut against the main beam.

7. A hoisting device for bridge construction according to claim 4, characterized in that: The second linear actuator is a hydraulic push rod.

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