Large-tonnage super-long assembly type diaphragm wall structure hoisting device and construction method

Abstract

The invention relates to the technical field of underground diaphragm wall structure hoisting, in particular to a large-tonnage super-long assembly type underground diaphragm wall structure hoisting device and a construction method.The large-tonnage super-long assembly type underground diaphragm wall structure hoisting device comprises a crane, the crane comprises a main body, a hoisting arm installed on the main body and an auxiliary arm installed on the side, away from the hoisting arm, of the main body, and a first pulley and a second pulley are arranged at the upper end of the hoisting arm; a second supporting arm extends out of the top end of the lifting arm, a third pulley is arranged at the end, close to the lifting arm, of the second supporting arm, a fourth pulley is arranged at the end, away from the lifting arm, of the second supporting arm, a driving retractor and a driven retractor are arranged on the auxiliary arm, and dragging ropes are arranged on the driving retractor and the driven retractor. A dragging rope of the driving retractor vertically falls on the ground around the first pulley and the third pulley, a dragging rope of the driven retractor vertically falls on the ground around the second pulley and the fourth pulley, a lifting hook is arranged at the end, vertically falling on the ground, of the dragging rope, two lifting points of the diaphragm wall can be lifted through one crane, and the crane can be controlled more harmoniously.

Description

Technical Field

[0001] The present application relates to the technical field of hoisting of ground-connected wall structures, and in particular to a hoisting device and a construction method for a large-tonnage ultra-long assembled ground-connected wall structure. Background Art

[0002] Ground-connected wall, also known as underground continuous wall, is an important infrastructure project, especially in the construction of underground projects such as subways, tunnels and large basements. In the construction process of ground-connected wall, steel cage hoisting is a key step.

[0003] In the prior art, a crane is usually used to lift the ground-connected wall. Usually, a lifting point is set at the top of the ground-connected wall, and then a towing rope is connected between the output end of the crane and the lifting point of the ground-connected wall. Then, the crane is started to lift the ground-connected wall. However, if only one end of a large-tonnage ground-connected wall is subjected to traction force, the middle position thereof will be subjected to bending stress, which may cause the ground-connected wall to break easily during the lifting process. It is easy for a person skilled in the art to think of adding a lifting point in the middle of the ground-connected wall to balance the bending stress on the ground-connected wall. However, adding a lifting point requires adding one more crane. If two cranes are used to lift one ground-connected wall at the same time, the operation is not coordinated, accidents are very likely to occur, and the space occupied by the two cranes is also relatively large.

[0004] In order to solve the above technical problems, a large-tonnage ultra-long assembled ground-connected wall structure hoisting device and construction method are needed. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a large-tonnage and ultra-long prefabricated ground-anchored wall structure hoisting device and construction method to solve the technical problem in the prior art that only one end of the large-tonnage ground-anchored wall is subjected to traction force, and the middle position thereof will be subjected to bending stress, resulting in the ground-anchored wall being easily broken during the hoisting process.

[0006] The above-mentioned objective of the present application is achieved through the following technical scheme: a large-tonnage and ultra-long assembled ground-connected wall structure lifting device, comprising a crane, the crane comprising a main body, a boom installed on the main body, and an auxiliary arm installed on a side of the main body away from the boom, the upper end of the boom is provided with a first pulley and a second pulley, the second support arm extends from the top of the boom, the second support arm is provided with a third pulley at one end close to the boom, and the second support arm is provided with a fourth pulley at one end away from the boom, an active reel and a driven reel are provided on the auxiliary arm, the active reel and the driven reel are both provided with a pulling rope, the pulling rope of the active reel is hung around the first pulley and the third pulley and falls to the ground, the pulling rope of the driven reel is hung around the second pulley and the fourth pulley and falls to the ground, a hook is provided on the end of the pulling rope hanging on the ground, the first pulley and the second pulley are not at the same horizontal height, and the third pulley and the fourth pulley are not at the same horizontal height.

[0007] By adopting the above technical solution, when it is necessary to hoist the ground connection wall, the hook of the towing rope wound around the first pulley and the third pulley is installed on the top of the ground connection wall, and then the towing rope wound around the second pulley and the fourth pulley is installed in the middle of the ground connection wall, and then the active reel and the driven reel are started to hoist the ground connection wall for hoisting. The present invention arranges the auxiliary arm on the side of the main body away from the lifting arm so that the active reel and the driven reel hoist the ground connection wall in the form of a lever, and then the towing rope can be more easily hoisted by the cooperation of the pulleys, thus solving the problem of hoisting the ground connection wall. The invention solves the technical problem in the prior art that only one end of a large-tonnage ground-connected wall is subjected to traction force, and the middle position thereof will be subjected to bending stress, which causes the ground-connected wall to be easily broken during the hoisting process; and the two hoisting points of the ground-connected wall can be hoisted by one crane, so that the construction personnel operating one crane can control the crane to hoist the ground-connected wall in a more coordinated manner; the first pulley and the second pulley are not at the same horizontal height, and the third pulley and the fourth pulley are not at the same horizontal height, which can prevent the pulling rope on the boom and the pulling rope on the second support arm from being entangled.

[0008] Furthermore, a box body is provided on the auxiliary arm, and the active retractor and the driven retractor are arranged in the box body. The active retractor includes an active retractor drum located on one side of the box body, a driving shaft rotatably connected to the box body, and a driving motor installed at one end of the driving shaft. The active retractor drum is fixedly connected to the driving shaft. The driven retractor includes a driven retractor drum located on a side of the box body away from the active retractor drum and a driven shaft rotatably connected to the box body. The driven retractor drum is fixedly connected to the driven shaft. A driving gear is provided around the end of the driving shaft away from the driving motor. A driving gear having a number of gear teeth more than one times the number of teeth of the driving gear is provided on one side close to the driven shaft, a reduction gear having a number of gear teeth more than one times the number of teeth of the driving gear is provided on one side close to the driven shaft, a driven gear having the same number of teeth as the reduction gear is provided on the periphery of one end of the driven shaft close to the reduction gear, the driving gear meshes with the driving gear, the driving gear meshes with the reduction gear, the reduction gear meshes with the driven gear, the driving gear is fixedly connected to the driving shaft, the driven gear is fixedly connected to the driven shaft, and the driving gear and the reduction gear are both rotatably connected to the housing.

[0009] By adopting the above technical scheme, although the second support arm, the active reel and the driven reel can enable the construction workers to control the crane to hoist the ground-connected wall more coordinatedly, each time the lifting point at the top of the ground-connected wall is raised, it is necessary to pay attention to the following distance of the lifting point at the middle end of the ground-connected wall. If the lifting point at the middle end of the ground-connected wall always follows the lifting point at the top of the ground-connected wall, the ground-connected wall will never reach a vertical state and construction cannot be carried out. If the lifting point at the middle end of the ground-connected wall only follows the lifting point at the top of the ground-connected wall at the beginning, then when the ground-connected wall is raised by the lifting point at the top of the ground-connected wall and the ground-connected wall as a whole presents a state of about 50 degrees, the lifting point at the middle end of the ground-connected wall will lose the pulling force on the ground-connected wall, causing the middle part of the ground-connected wall to be subjected to bending stress, resulting in the fracture of the ground-connected wall. The setting of the active gear, the driving gear and the reduction gear solves this technical problem. The driving motor drives the active shaft to rotate, and the rotating active shaft drives the driving gear to rotate through the active gear. However, because the number of gear teeth of the driving gear is more than The number of teeth on the driving gear is twice the number, resulting in the driving gear only rotating half a circle when the driving gear rotates one circle. The rotating driving gear drives the reduction gear to rotate. However, because the number of gear teeth on the reduction gear is twice the number of teeth on the driving gear, the reduction gear only rotates half a circle when the driving gear rotates one circle, and the rotating reduction gear drives the driven gear to rotate. This results in the driven shaft rotating one circle for every four circles of the driving shaft. Because the hanging point of the pulling rope of the active reel of the fixed connection of the driving shaft is the top of the ground-connected wall, when the top of the ground-connected wall is pulled four circles by the active reel, the middle part of the ground-connected wall is only reeled in one circle. In this way, the two hanging points of the ground-connected wall will not follow too closely, nor will they not follow all the time, so that the hanging point in the middle of the ground-connected wall can always be subjected to tension during the hoisting process, and it will not affect the final verticality of the ground-connected wall, so that the construction personnel only need to start the drive motor after the two hanging points are installed, which optimizes the operation mode of the construction personnel, reduces the probability of accidents among the construction personnel, and improves the use experience of the construction personnel.

[0010] Furthermore, a slide groove is provided on the upper surface of the auxiliary arm, and the box body is slidably connected to the auxiliary arm through the slide groove.

[0011] By adopting the above technical scheme, although the setting of the box, active gear, driven gear, driving gear and reduced gears enables the construction workers to only start the driving motor after the two lifting points are installed, which optimizes the operation mode of the construction workers, reduces the probability of accidents for the construction workers, and improves the use experience of the construction workers, different weights of ground-connected walls require different lever pulls for hoisting, because as the weight of the ground-connected wall increases, the required lever pull will also increase accordingly. This is because heavier objects require greater force to overcome their gravity and lift them up. The box is slidably connected to the auxiliary arm through a slide groove to solve this technical problem. By sliding the box, the box is farther away from the main body, so that the active retractor and the driven retractor in the box exert a greater lever pull on the hoisted ground-connected wall, so that the active retractor and the driven retractor can adapt to ground-connected walls of different weights, thereby improving the applicability and practicality of the present invention.

[0012] Furthermore, a driving cylinder is provided at one end of the slideway close to the main body, and an output end of the driving cylinder is fixedly connected to one side of the box body close to the driving cylinder.

[0013] By adopting the above technical solution, although the box is slidably connected to the auxiliary arm through the slide groove, the active retractor and the driven retractor can adapt to ground-connected walls of different weights, but because the active retractor and the driven retractor are arranged in the box, it is difficult to slide the box by manpower. The setting of the driving cylinder solves this technical problem. The driving cylinder can easily drive the box to slide on the auxiliary arm.

[0014] Furthermore, connecting screw holes are provided on both sides of the auxiliary arm, and inverted L-shaped connecting plates are provided on both sides of the box body. The connecting plates are provided with connecting bolts that pass through the connecting plates and are threadedly connected to the auxiliary arms through the connecting screw holes.

[0015] By adopting the above technical solution, although the driving cylinder can easily drive the box to slide on the auxiliary arm, the active reel and the driven reel will be subjected to very large force during the lifting process. This force may act on the cylinder through the output end of the driving cylinder, which makes the driving cylinder easily damaged. The setting of the connecting plate and the connecting bolts solves this technical problem. After the driving cylinder drives the box to slide on the auxiliary arm, the connecting bolts are used to pass through the connecting plate and threadedly connect to the auxiliary arm, so that the box can be fixed, and the force borne by the box will not act on the output end of the driving cylinder.

[0016] Furthermore, a reinforcing plate located below the auxiliary arm and fixedly connected to the main body is provided on one side of the main body away from the boom, and the reinforcing plate is rectangular and has reinforcing nails at the four corners.

[0017] By adopting the above technical solution, although the second support arm, the active reel and the driven reel enable the construction workers to control the crane more coordinately to hoist the ground-connected wall, it also causes the side of the main body with the boom to be subjected to excessive gravity. During the hoisting process, it is easy for the main body to tilt toward the side where the boom is set, causing the main body to tip over. The setting of the reinforcement plate and the reinforcement nails solves this technical problem. Before hoisting, the reinforcement nails are first nailed into the ground through the reinforcement plate, and then the ground-connected wall is hoisted. In this way, with the reinforcement nails fixed, the main body can be hoisted very stably during the hoisting process.

[0018] Furthermore, a through slot is provided at a position of the reinforcing plate just below the auxiliary arm, a support rod is provided below the auxiliary arm, one end of the support rod is rotatably connected to the auxiliary arm, and the other end extends vertically to the through slot, and a clamping device is provided at one end of the support rod close to the through slot.

[0019] By adopting the above technical solution, although the setting of the reinforcement plate and the reinforcement nails can make the main body be lifted very stably during the lifting process, the auxiliary arm is also borne by a considerable gravity, which leads to the risk of the auxiliary arm bending in the direction of the boom during the lifting process. The setting of the clamping device and the through groove solves this technical problem. The clamping device clamps the support rod through the through groove, and provides a supporting force to the auxiliary arm through the support rod. When the auxiliary arm bends in the direction of the boom, the clamping device clamps the reinforcement plate to limit the auxiliary arm from bending in the direction of the boom.

[0020] Furthermore, the clamping device includes a connecting platform fixedly installed on one end of the support rod close to the through groove, two L-shaped connecting parts slidably connected to the connecting platform, and fixing bolts passing through the connecting platform and the connecting parts in sequence. The two connecting parts are mirror-imaged below the connecting platform and extend through the through groove to the bottom of the reinforcing plate and the upper surface of one lateral end thereof abuts against the bottom surface of the reinforcing plate.

[0021] By adopting the above technical solution, the support rod is clamped in this way, and the upper surface of one lateral end of the connecting piece is mostly in contact with the bottom surface of the reinforcing plate through the sliding connecting piece, and then the position of the connecting piece is fixed by fixing bolts that pass through one side of the connecting platform, the two connecting pieces and the other side of the connecting platform in sequence. In this way, when the auxiliary arm bends in the direction of the boom, the connecting piece abuts against the bottom surface of the reinforcing plate to limit the auxiliary arm from bending in the direction of the boom.

[0022] Furthermore, arc-shaped plates fixedly connected to the reinforcing plate are provided on both sides of the reinforcing plate, and the through groove is an arc-shaped groove, and the through groove extends to the arc-shaped plate.

[0023] By adopting the above technical scheme, although the clamping device can limit the auxiliary arm from bending in the direction of the boom, the auxiliary arm must work together with the boom during the lifting process. If the through groove is a straight groove, the rotation of the auxiliary arm will be limited. The arc plate and setting the through groove as an arc groove solve this technical problem. The through groove extends to the arc plate, so that the auxiliary arm can rotate along the through groove, and the connecting piece always abuts against the bottom surface of the reinforcing plate or the bottom surface of the arc plate during the rotation. In this way, the technical problem of the clamping device and the through groove limiting the rotation of the auxiliary arm is solved, and the purpose of improving the user experience of construction personnel is achieved.

[0024] A method for hoisting and constructing a large-tonnage ultra-long assembled ground-connected wall structure comprises the following steps: S1. Adjust the position of the box on the auxiliary arm according to the weight of the ground-connected wall, and then fix the box with the connecting plate and connecting bolts; S2. Drive reinforcement nails into the four corners of the reinforcement plate so that the reinforcement nails are inserted into the ground; S3, then slide the two connecting members so that the upper surface of one of their lateral ends abuts against the bottom surface of the reinforcing plate, and then use fixing bolts to pass through one side of the connecting platform, the two connecting members and the other side of the connecting platform in sequence to fix the positions of the two connecting members; S4, installing the hook of the towing rope around the first pulley and the third pulley on the top of the ground-connected wall, and then installing the towing rope around the second pulley and the fourth pulley in the middle of the ground-connected wall; S5, start the driving motor to lift the ground-connected wall; S6. Control the crane arm through the main body to hoist the ground-connected wall to the installation position; S7. Remove the hanging point in the middle of the ground-connected wall and install the ground-connected wall.

[0025] In summary, the present application includes at least one of the following beneficial technical effects.

[0026] 1. By setting the boom, the auxiliary arm, the second supporting arm, the active reel, the driven reel, the first pulley, the second pulley, the third pulley, the fourth pulley and the pulling rope, it is achieved that the hook of the pulling rope wrapped around the first pulley and the third pulley is installed on the top of the ground-connected wall, and then the pulling rope wrapped around the second pulley and the fourth pulley is installed in the middle of the ground-connected wall, and then the active reel and the driven reel are started, so that the active reel and the driven reel are used to lift the ground-connected wall in a lever manner, and then the pulling rope can be more easily lifted up the ground-connected wall through the cooperation of the pulleys, thus solving the technical problem that only one end of the large-tonnage ground-connected wall in the prior art is subjected to the traction force, and the middle position thereof will be subjected to bending stress, resulting in the ground-connected wall being easily broken during the lifting process, and the two lifting points of the ground-connected wall can be lifted by one crane, so that the construction personnel operating one crane can more coordinately control the crane to lift the ground-connected wall.

[0027] 2. Through the arrangement of the box, the active retractor, the driven retractor, the active gear, the drive motor, the driven gear, the driving gear and the reduction gear, it is realized that the driving motor drives the active shaft to rotate, and the rotating active shaft drives the driving gear to rotate through the active gear. However, because the number of teeth of the driving gear is more than one times the number of teeth of the active gear, the driving gear will only rotate half a circle when the active gear rotates one circle, and the rotating driving gear drives the reduction gear to rotate. However, because the number of teeth of the reduction gear is more than one times the number of teeth of the driving gear, the driving gear will only rotate half a circle when it rotates one circle, and the rotating reduction gear drives the driven gear to rotate, which results in the active shaft rotating every time. The driven shaft rotates four times before it rotates one circle, because the lifting point of the pulling rope of the active reel that is fixedly connected to the driving shaft is the top of the ground-connected wall. When the top of the ground-connected wall is pulled four circles by the active reel, the middle part of the ground-connected wall is reeled one circle. In this way, the two lifting points of the ground-connected wall will not follow too closely, nor will they not follow all the time. During the lifting process, the middle lifting point of the ground-connected wall can always be subjected to tension without affecting the final verticality of the ground-connected wall. After the two lifting points are installed, the construction workers only need to start the drive motor, which optimizes the operation mode of the construction workers, reduces the probability of accidents among the construction workers, and improves the use experience of the construction workers. 3. Through the arrangement of the auxiliary arm, the slide groove, the box, the active reel, the driven reel, the driving cylinder, the connecting plate and the connecting bolts, the driving cylinder is started to adjust the position of the box on the auxiliary arm, and then the connecting bolts are threaded through the connecting plate to connect the auxiliary arm to fix the box. By sliding the box, the box is moved farther away from the main body, so that the active reel and the driven reel in the box can apply a greater lever pulling force to the hoisted ground-connected wall. In this way, the active reel and the driven reel can adapt to ground-connected walls of different weights, thereby improving the applicability and practicality of the present invention. In addition, by fixing the box, the force borne by the box will not act on the output end of the driving cylinder, thereby improving the service life of the driving cylinder.

[0028] 4. By setting the reinforcing plate, reinforcing nails, support rods, clamping components and arc plates, it is achieved that the reinforcing nails are nailed into the ground at the four corners of the reinforcing plate, and then the two connecting pieces are slid so that the upper surface of one horizontal end thereof abuts against the bottom surface of the reinforcing plate. Then, the fixing bolts are sequentially passed through one side of the connecting platform, the two connecting pieces and the other side of the connecting platform to fix the positions of the two connecting pieces, so that the main body can be lifted very stably during the lifting process. By fixing the positions of the two connecting pieces, the support rods are clamped, and a supporting force is provided to the auxiliary arm through the support rods. When the auxiliary arm bends in the direction of the lifting arm, the connecting piece clamps the reinforcing plate to limit the bending of the auxiliary arm in the direction of the lifting arm, thereby improving the service life of the auxiliary arm and not affecting the rotation of the auxiliary arm during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is the overall structure diagram of the embodiment; Figure 2 It is the internal structure diagram of the box in the embodiment; Figure 3 yes Figure 2 Enlarged view of part A in the middle; Figure 4 Another view of the overall structure of the embodiment; Figure 5 yes Figure 4 Enlarged view of part B in the middle.

[0030] Figure numerals: 1, crane; 10, main body; 11, boom; 12, auxiliary arm; 120, slide; 121, driving cylinder; 122, connecting screw hole; 123, support rod; 13, second support arm; 14, first pulley; 15, second pulley; 16, third pulley; 17, fourth pulley; 2, active reel; 20, active reel drum; 21, active shaft; 22, active gear; 23, driving motor; 3, driven reel; 30, driven reel drum; 31, driven shaft; 32, driven gear; 4, towing rope; 40, hook; 5, box; 50, driving gear; 51, reduction gear; 6, connecting plate; 60, connecting bolt; 7, reinforcing plate; 70, reinforcing nail; 71, through groove; 8, clamping device; 80, connecting platform; 81, connecting piece; 82, fixing bolt; 9, arc plate. DETAILED DESCRIPTION

[0031] The present application is further described in detail below with reference to the accompanying drawings.

[0032] Example, see Figure 1 , Figure 2 , Figure 3A large-tonnage ultra-long assembled ground-connected wall structure hoisting device includes a crane 1, the crane 1 includes a main body 10, a boom 11 installed on the main body 10, and an auxiliary arm 12 installed on the side of the main body 10 away from the boom 11, a first pulley 14 and a second pulley 15 are provided at the upper end of the boom 11, a second support arm 13 extends from the top of the boom 11, a third pulley 16 is provided at one end of the second support arm 13 close to the boom 11, a fourth pulley 17 is provided at one end of the second support arm 13 away from the boom 11, an active retractor 2 is provided on the auxiliary arm 12, and a third pulley 16 is provided on one end of the second support arm 13 close to the boom 11. The active retractor 2 and the driven retractor 3 are both provided with a pulling rope 4. The pulling rope 4 of the active retractor 2 is hung on the ground around the first pulley 14 and the third pulley 16. The pulling rope 4 of the driven retractor 3 is hung on the ground around the second pulley 15 and the fourth pulley 17. A hook 40 is provided at one end of the pulling rope 4 hung on the ground. The first pulley 14 and the second pulley 15 are not at the same level, and the third pulley 16 and the fourth pulley 17 are not at the same level. By hanging the pulling rope around the first pulley 14 and the third pulley 16 The hook 40 of the guide rope 4 is installed on the top of the ground-connected wall, and then the towing rope 4 wound around the second pulley 15 and the fourth pulley 17 is installed in the middle of the ground-connected wall, and then the active retractor 2 and the driven retractor 3 are started to lift the ground-connected wall for hoisting. The auxiliary arm 12 of the present invention is arranged on the side of the main body 10 away from the lifting arm 11 so that the active retractor 2 and the driven retractor 3 can lift the ground-connected wall in the form of a lever, and then the towing rope 4 can lift the ground-connected wall more easily through the cooperation of the pulleys, thus solving the problem that the ground-connected wall with large tonnage has only one end in the prior art. When subjected to traction force, the middle position thereof will be subjected to bending stress, resulting in a technical problem that the ground-connected wall is easily broken during the hoisting process. The two lifting points of the ground-connected wall can be lifted by one crane 1, so that the construction personnel operating one crane 1 can more coordinately control the crane 1 to hoist the ground-connected wall. The first pulley 14 and the second pulley 15 are not at the same horizontal height, and the third pulley 16 and the fourth pulley 17 are not at the same horizontal height, which can prevent the pulling rope 4 on the boom 11 and the pulling rope 4 on the second support arm 13 from being entangled.

[0033] Although the second support arm 13, the active reel 2 and the driven reel 3 can enable the construction workers to control the crane 1 to hoist the ground-connected wall in a more coordinated manner, each time the lifting point at the top of the ground-connected wall is raised, it is necessary to pay attention to the following distance of the lifting point at the middle end of the ground-connected wall. If the lifting point at the middle end of the ground-connected wall always follows the lifting point at the top of the ground-connected wall, the ground-connected wall will never reach a vertical state and construction will be impossible. If the lifting point at the middle end of the ground-connected wall only follows the lifting point at the top of the ground-connected wall at the beginning, then when the ground-connected wall is raised by the lifting point at the top of the ground-connected wall and the ground-connected wall as a whole presents a state of about 50 degrees, the lifting point at the middle end of the ground-connected wall will lose the pulling force on the ground-connected wall, causing the middle part of the ground-connected wall to be subjected to bending stress, resulting in the ground-connected wall. The wall is broken. In order to solve this technical problem, in this embodiment, a box body 5 is provided on the auxiliary arm 12, and an active retractor 2 and a driven retractor 3 are arranged in the box body 5. The active retractor 2 includes an active retractor drum 20 located on one side of the box body 5, a driving shaft 21 rotatably connected to the box body 5, and a driving motor 23 installed at one end of the driving shaft 21. The active retractor drum 20 is fixedly connected to the driving shaft 21. The driven retractor 3 includes a driven retractor drum 30 located on a side of the box body 5 away from the active retractor drum 20 and a driven shaft 31 rotatably connected to the box body 5. The driven retractor drum 30 is fixedly connected to the driven shaft 31. A driving gear 22 is provided around one end of the driving shaft 21 away from the driving motor 23, and a driving gear 22 is close to the driven shaft 31. A driving gear 50 having a number of gear teeth which is one times the number of teeth of the driving gear 22 is provided on the side of the driving gear 50 close to the driven shaft 31, a reduction gear 51 having a number of gear teeth which is one times the number of teeth of the driving gear 50 is provided on the side of the driving gear 50 close to the driven shaft 31, a driven gear 32 having the same number of teeth as the reduction gear 51 is provided on the periphery of one end of the driven shaft 31 close to the reduction gear 51, the driving gear 22 meshes with the driving gear 50, the driving gear 50 meshes with the reduction gear 51, the reduction gear 51 meshes with the driven gear 32, the driving gear 22 is fixedly connected to the driving shaft 21, the driven gear 32 is fixedly connected to the driven shaft 31, the driving gear 50 and the reduction gear 51 are both rotatably connected to the box body 5, the driving shaft 21 is driven to rotate by the driving motor 23, and the rotating driving shaft 21 is driven by the driving gear 22 drives the driving gear 50 to rotate, but because the number of teeth of the driving gear 50 is more than twice the number of teeth of the driving gear 22, the driving gear 22 rotates one circle and the driving gear 50 only rotates half a circle. The rotating driving gear 50 drives the reduction gear 51 to rotate, but because the number of teeth of the reduction gear 51 is more than twice the number of teeth of the driving gear 50, the reduction gear 51 only rotates half a circle when the driving gear 50 rotates one circle. The rotating reduction gear 51 drives the driven gear 32 to rotate, which causes the driven shaft 31 to rotate one circle for every four circles of the driving shaft 21. Because the hanging point of the pulling rope 4 of the active winding drum 20 fixedly connected to the active shaft 21 is the top of the ground-connected wall, when the top of the ground-connected wall is pulled four circles by the active winding drum 20,The middle part of the ground-connected wall is rolled up for a circle, so that the two hanging points of the ground-connected wall will not follow too closely, nor will they not follow all the time, so that the hanging point in the middle of the ground-connected wall can always be subjected to tension during the hoisting process, and will not affect the final verticality of the ground-connected wall. After the two hanging points are installed, the construction workers only need to start the drive motor 23, which optimizes the operation mode of the construction workers, reduces the probability of accidents for the construction workers, and improves the use experience of the construction workers.

[0034] Although the box body 5, the active gear 22, the driven gear 32, the driving gear 50 and the reduced gear settings enable the construction personnel to only start the driving motor 23 after the two lifting points are installed, which optimizes the operation mode of the construction personnel, reduces the probability of accidents for the construction personnel, and improves the use experience of the construction personnel, different weights of the ground-connected walls require different lever pulls for hoisting, because as the weight of the ground-connected wall increases, the required lever pull will also increase accordingly. This is because heavier objects require greater force to overcome their gravity and lift them up. In order to solve this technical problem, in this embodiment, a slide groove 120 is opened on the upper surface of the auxiliary arm 12, and the box body 5 is slidably connected to the auxiliary arm 12 through the slide groove 120. By sliding the box body 5, the box body 5 is farther away from the main body 10, so that the active retractor 2 and the driven retractor 3 in the box body 5 Apply greater lever pulls to the hoisted ground-connected wall, so that the active retractor 2 and the driven retractor 3 can adapt to ground-connected walls of different weights, thereby improving the applicability and practicality of the present invention.

[0035] Although the box body 5 is slidably connected to the auxiliary arm 12 through the slide groove 120, the active retractor 2 and the driven retractor 3 can adapt to ground-connected walls of different weights, it is difficult to slide the box body 5 by manpower because the active retractor 2 and the driven retractor 3 are arranged in the box body 5. In order to solve this technical problem, in this embodiment, a driving cylinder 121 is provided at one end of the slide groove 120 close to the main body 10, and the output end of the driving cylinder 121 is fixedly connected to a side of the box body 5 close to the driving cylinder 121. The driving cylinder 121 can easily drive the box body 5 to slide on the auxiliary arm 12.

[0036] Although the driving cylinder 121 can easily drive the box body 5 to slide on the auxiliary arm 12, the active retractor 2 and the driven retractor 3 will be subjected to very large force during the lifting process of the box body 5, and this force may act on the cylinder through the output end of the driving cylinder 121, which makes the driving cylinder 121 easy to be damaged. In order to solve this technical problem, in this embodiment, connecting screw holes 122 are opened on both sides of the auxiliary arm 12, and inverted L-shaped connecting plates 6 are provided on both sides of the box body 5. The connecting plates 6 are provided with connecting bolts 60 that pass through the connecting plates 6 and are threadedly connected to the auxiliary arm 12 through the connecting screw holes 122. After the driving cylinder 121 drives the box body 5 to slide on the auxiliary arm 12, the connecting bolts 60 are used to pass through the connecting plates 6 and are threadedly connected to the auxiliary arm 12. In this way, the box body 5 can be fixed, and the force borne by the box body 5 will not act on the output end of the driving cylinder 121.

[0037] Although the second support arm 13, the active reel 2 and the driven reel 3 enable the construction workers to control the crane 1 more coordinatedly to hoist the ground-connected wall, it also causes the side of the main body 10 where the boom 11 is provided to be subjected to excessive gravity. During the hoisting process, the main body 10 is easily tilted toward the side where the boom 11 is provided, causing the main body 10 to tip over. In order to solve this technical problem, in this embodiment, a reinforcing plate 7 is provided on the side of the main body 10 away from the boom 11, which is located below the auxiliary arm 12 and fixedly connected to the main body 10. The reinforcing plate 7 is rectangular and reinforcing nails 70 are provided at the four corners. Before hoisting, the reinforcing nails 70 are first nailed into the ground through the reinforcing plate 7, and then the ground-connected wall is hoisted. In this way, with the reinforcing nails 70 fixed, the main body 10 can be hoisted very stably during the hoisting process.

[0038] Although the arrangement of the reinforcing plate 7 and the reinforcing nail 70 enables the main body 10 to be very stably hoisted during the hoisting process, the auxiliary arm 12 is also subjected to a considerable gravity, which results in the risk of the auxiliary arm 12 bending toward the hoisting arm 11 during the hoisting process. In order to solve this technical problem, reference is made to Figure 4 , Figure 5In this embodiment, a through slot 71 is provided at a position where the reinforcing plate 7 is located directly below the auxiliary arm 12. A support rod 123 is provided below the auxiliary arm 12, one end of which is rotatably connected to the auxiliary arm 12 and the other end of which is vertically extended to the through slot 71. A clamping device 8 is provided at one end of the support rod 123 near the through slot 71. The clamping device 8 includes a connecting platform 80 fixedly installed at one end of the support rod 123 near the through slot 71, two L-shaped connecting members 81 slidably connected to the connecting platform 80, and fixing bolts 82 that pass through the connecting platform 80 and the connecting member 81 in sequence. The two connecting members 81 are mirror-imaged below the connecting platform 80 and are connected through the through slot 71. The groove 71 extends to the bottom of the reinforcing plate 7 and the upper surface of one lateral end thereof abuts against the bottom surface of the reinforcing plate 7. The sliding connecting piece 81 is used so that most of the upper surface of one lateral end of the connecting piece 81 contacts the bottom surface of the reinforcing plate 7. Then, the fixing bolt 82 passes through one side of the connecting platform 80, the two connecting pieces 81 and the other side of the connecting platform 80 in sequence, fixes the position of the two connecting pieces 81, clamps the support rod 123, and provides a supporting force to the auxiliary arm 12 through the support rod 123. When the auxiliary arm 12 bends toward the boom 11, the connecting piece 81 clamps the reinforcing plate 7 to limit the auxiliary arm 12 from bending toward the boom 11.

[0039] Although the clamping device 8 can limit the auxiliary arm 12 from bending toward the boom 11, the auxiliary arm 12 must work together with the boom 11 during the lifting process. If the through groove 71 is a straight groove, the rotation of the auxiliary arm 12 is limited. In order to solve this technical problem, in this embodiment, arc plates 9 are provided on both sides of the reinforcing plate 7 to fix the reinforcing plate 7. The through groove 71 is an arc groove that extends to the arc plate 9. The extension of the through groove 71 to the arc plate 9 allows the auxiliary arm 12 to rotate along the through groove 71, and the connecting piece 81 always abuts against the bottom surface of the reinforcing plate 7 or the bottom surface of the arc plate 9 during the rotation. In this way, the technical problem of the clamping device 8 and the through groove 71 limiting the rotation of the auxiliary arm 12 is solved, thereby achieving the purpose of improving the user experience of the construction personnel.

[0040] Specific implementation process: first, according to the weight of the ground-connected wall, the driving cylinder 121 is started to adjust the position of the box body 5 on the auxiliary arm 12, and then the connecting bolt 60 is passed through the connecting plate 6 and threadedly connected to the auxiliary arm 12 to fix the box body 5, and then the reinforcing nails 70 are nailed into the four corners of the reinforcing plate 7 so that the reinforcing nails 70 are inserted into the ground, and then the two connecting pieces 81 are slid so that the upper surface of one of their lateral ends abuts against the bottom surface of the reinforcing plate 7, and then the fixing bolts 82 are used to pass through one side of the connecting platform 80, the two connecting pieces 81 and the other side of the connecting platform 80 in sequence to fix the positions of the two connecting pieces 81, and then the hook 40 of the towing rope 4 around the first pulley 14 and the third pulley 16 is installed on the top of the ground-connected wall, and then the towing rope 4 around the second pulley 15 and the fourth pulley 17 is installed in the middle of the ground-connected wall, and then the driving motor 23 is started to lift the ground-connected wall, and then the main body 10 controls the arm 11 to lift the ground-connected wall to the installation position, and then the lifting point in the middle of the ground-connected wall is removed to install the ground-connected wall.

[0041] A method for hoisting and constructing a large-tonnage ultra-long assembled ground-connected wall structure comprises the following steps: S1, adjusting the position of the box 5 on the auxiliary arm 12 according to the weight of the ground-connected wall, and then fixing the box 5 by the connecting plate 6 and the connecting bolts 60; S2, driving reinforcing nails 70 into the four corners of the reinforcing plate 7 so that the reinforcing nails 70 are inserted into the ground; S3, then slide the two connecting members 81 so that the upper surface of one lateral end thereof abuts against the bottom surface of the reinforcing plate 7, and then use the fixing bolts 82 to pass through one side of the connecting platform 80, the two connecting members 81 and the other side of the connecting platform 80 in sequence to fix the positions of the two connecting members 81; S4, install the hook 40 of the towing rope 4 around the first pulley 14 and the third pulley 16 on the top of the ground-connected wall, and then install the towing rope 4 around the second pulley 15 and the fourth pulley 17 in the middle of the ground-connected wall; S5, start the driving motor 23 to lift the ground-connected wall; S6, controlling the boom 11 through the main body 10 to hoist the ground-connected wall to the installation position; S7. Remove the hanging point in the middle of the ground-connected wall and install the ground-connected wall.

[0042] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A large-tonnage and ultra-long assembled ground-connected wall structure hoisting device, comprising a crane (1), characterized in that: The crane (1) comprises a main body (10), a boom (11) mounted on the main body (10), and an auxiliary arm (12) mounted on a side of the main body (10) away from the boom (11); a first pulley (14) and a second pulley (15) are provided at the upper end of the boom (11); a second support arm (13) extends from the top end of the boom (11); a third pulley (16) is provided at one end of the second support arm (13) close to the boom (11); a fourth pulley (17) is provided at one end of the second support arm (13) away from the boom (11); an active retractor (2) and a pulley (15) are provided on the auxiliary arm (12); The active retractor (3) is provided with a pulling rope (4) on both the active retractor (2) and the driven retractor (3); the pulling rope (4) of the active retractor (2) is hung on the ground around a first pulley (14) and a third pulley (16); the pulling rope (4) of the driven retractor (3) is hung on the ground around a second pulley (15) and a fourth pulley (17); a hook (40) is provided at one end of the pulling rope (4) hanging on the ground; the first pulley (14) and the second pulley (15) are not at the same level; and the third pulley (16) and the fourth pulley (17) are not at the same level.

2. According to claim 1, a large-tonnage ultra-long assembled ground-connected wall structure hoisting device is characterized in that: The auxiliary arm (12) is provided with a box body (5), the active retractor (2) and the driven retractor (3) are arranged in the box body (5), the active retractor (2) comprises an active retractor drum (20) located at one side of the box body (5), a driving shaft (21) rotatably connected to the box body (5), and a driving motor (23) installed at one end of the driving shaft (21), the active retractor drum (20) is fixedly connected to the driving shaft (21), the driven retractor drum (30) comprises a driven retractor drum (30) located at a side of the box body (5) away from the active retractor drum (20) and a driven shaft (31) rotatably connected to the box body (5), the driven retractor drum (30) is fixedly connected to the driven shaft (31), and a driving gear (22) is provided around one end of the driving shaft (21) away from the driving motor (23), and the driving gear (22) is close to the driving shaft (21). A driving gear (50) having a number of gear teeth greater than one times the number of teeth of the driving gear (22) is provided on one side of the driven shaft (31); a reduction gear (51) having a number of gear teeth greater than one times the number of teeth of the driving gear (50) is provided on one side of the driving gear (50) close to the driven shaft (31); a driven gear (32) having the same number of teeth as the reduction gear (51) is provided on the periphery of one end of the driven shaft (31) close to the reduction gear (51); the driving gear (22) meshes with the driving gear (50); the driving gear (50) meshes with the reduction gear (51); the reduction gear (51) meshes with the driven gear (32); the driving gear (22) is fixedly connected to the driving shaft (21); the driven gear (32) is fixedly connected to the driven shaft (31); the driving gear (50) and the reduction gear (51) are both rotatably connected to the housing (5).

3. According to claim 2, a large-tonnage ultra-long assembled ground-connected wall structure hoisting device is characterized in that: A sliding groove (120) is provided on the upper surface of the auxiliary arm (12), and the box body (5) is slidably connected to the auxiliary arm (12) via the sliding groove (120).

4. According to claim 3, a large-tonnage ultra-long assembled ground-connected wall structure hoisting device is characterized in that: A driving cylinder (121) is provided at one end of the slide groove (120) close to the main body (10), and an output end of the driving cylinder (121) is fixedly connected to a side of the box body (5) close to the driving cylinder (121).

5. According to claim 4, a large-tonnage ultra-long assembled ground-connected wall structure hoisting device is characterized in that: The auxiliary arm (12) is provided with connecting screw holes (122) on both sides, and the box body (5) is provided with inverted L-shaped connecting plates (6) on both sides. The connecting plate (6) is provided with connecting bolts (60) that pass through the connecting plate (6) and are threadedly connected to the upper auxiliary arm (12) through the connecting screw holes (122).

6. According to claim 1, a large-tonnage and ultra-long assembled ground-connected wall structure hoisting device is characterized in that: A reinforcing plate (7) located below the auxiliary arm (12) and fixedly connected to the main body (10) is provided on one side of the main body (10) away from the boom (11); the reinforcing plate (7) is rectangular and has reinforcing nails (70) at the four corners.

7. According to claim 6, a large-tonnage ultra-long assembled ground-connected wall structure hoisting device is characterized in that: The reinforcing plate (7) is provided with a through slot (71) at a position directly below the auxiliary arm (12); a support rod (123) is provided below the auxiliary arm (12) with one end rotatably connected to the auxiliary arm (12) and the other end vertically extending toward the through slot (71); a clamping device (8) is provided at one end of the support rod (123) close to the through slot (71).

8. The large-tonnage and ultra-long assembled ground-connected wall structure hoisting device according to claim 7 is characterized in that: The clamping device (8) comprises a connecting platform (80) fixedly mounted on one end of the support rod (123) close to the through slot (71), two L-shaped connecting members (81) slidably connected to the connecting platform (80), and fixing bolts (82) passing through the connecting platform (80) and the connecting members (81) in sequence, wherein the two connecting members (81) are mirror-imagedly arranged below the connecting platform (80) and extend through the through slot (71) to below the reinforcing plate (7), and the upper surface of one lateral end thereof abuts against the bottom surface of the reinforcing plate (7).

9. The large-tonnage and ultra-long assembled ground-connected wall structure hoisting device according to claim 8 is characterized in that: Arc plates (9) fixedly connected to the reinforcing plate (7) are provided on both sides of the reinforcing plate (7); the through groove (71) is an arc groove, and the through groove (71) extends to the arc plate (9).

10. A method for hoisting and constructing a large-tonnage and ultra-long assembled ground-connected wall structure, applied to a large-tonnage and ultra-long assembled ground-connected wall structure hoisting device according to any one of claims 1 to 9, comprising the following steps: S1. Adjust the position of the box (5) on the auxiliary arm (12) according to the weight of the ground-connected wall, and then fix the box (5) through the connecting plate (6) and the connecting bolts (60); S2, driving reinforcing nails (70) into the four corners of the reinforcing plate (7) so that the reinforcing nails (70) are inserted into the ground; S3, then slide the two connecting members (81) so that the upper surface of one of their lateral ends abuts against the bottom surface of the reinforcing plate (7), and then use fixing bolts (82) to pass through one side of the connecting platform (80), the two connecting members (81) and the other side of the connecting platform (80) in sequence to fix the positions of the two connecting members (81); S4, installing the hook (40) of the pulling rope (4) around the first pulley (14) and the third pulley (16) on the top of the ground-connected wall, and then installing the pulling rope (4) around the second pulley (15) and the fourth pulley (17) in the middle of the ground-connected wall; S5, starting the driving motor (23) to lift the ground-connected wall; S6, controlling the lifting arm (11) through the main body (10) to lift the ground-connected wall to the installation position; S7. Remove the hanging point in the middle of the ground-connected wall and install the ground-connected wall.

Images