Complex large-span special-shaped steel-concrete combined tower crane tool and integral hoisting method

Abstract

The invention relates to the technical field of special-shaped steel hoisting, and discloses a complex large-span special-shaped steel-concrete combined tower crane tool and an integral hoisting method.The complex large-span special-shaped steel-concrete combined tower crane tool comprises a hoisting tool supporting plate, lifting plates are slidably connected to the inner walls of four first limiting sliding grooves, and supporting shafts are connected to the two ends of the bottoms of the four lifting plates in a penetrating mode; and a second clamping plate is hinged to the edge of one end of each of the four base plates, and hydraulic rods are rotationally connected to the inner walls of the four connecting grooves correspondingly, and the telescopic plates stretch out and draw back on the lifting appliance supporting plate to adjust the lifting and clamping width of the first clamping plates at the two ends; lifting plates are pushed by hydraulic cylinders at the bottoms of the first clamping plates at the two ends, so that the height between the base plate and the lifting appliance supporting plate is adjusted to adapt to the thicknesses of different special-shaped steel, and a second clamping plate which is pushed by a hydraulic rod to rotate and erect is arranged on the base plate to clamp or support a hollow area at the bottom of part of the special-shaped steel; and the lifting appliance equipment can be simultaneously adaptive to fixation of various special-shaped steel with different regular shapes, so that the construction efficiency is improved, and the construction cost is also reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of special-shaped steel hoisting, and particularly relates to a complex large-span special-shaped steel mixed combination tower hoist and an integral hoisting method. BACKGROUND

[0002] In the field of building construction, the combination tower crane, as a kind of tower crane adopting modular design, occupies an important position due to its unique advantages. Its core feature lies in the use of standardized components for assembly. This design makes the combination tower crane extremely convenient in transportation and installation, and can flexibly adapt to diversified construction needs. Special-shaped steel, as a short name for complex and special-shaped section steel, belongs to the complex section category in the classification of section steel, and is in sharp contrast to simple section steel. According to different processing techniques, special-shaped steel can be divided into hot-rolled, cold-drawn, cold-bent, welded and other types, and is usually referred to as hot-rolled special-shaped steel in the industry. It is widely used in many fields such as building engineering, mechanical manufacturing, automobile and ship, and power facilities. Common types include hot-rolled window frame steel, plowshare steel, automobile wheel steel and H-shaped steel, etc. In building engineering, for some large-span special-shaped steel, due to its large weight and irregular shape, special hangers are needed for fixing during hoisting and carrying, and then hoisting machines are used to complete the work. With the continuous development of modern building construction technology, the types of special-shaped steel used are increasingly diverse. Correspondingly, the hoisting method and structure of the combination tower crane also need to be continuously innovated and changed to meet the hoisting needs of different types of special-shaped steel.

[0003] However, the existing complex large-span special-shaped steel mixed combination tower crane still has the following disadvantages in use: 1. The existing combination tower crane has a single clamping method for irregular special-shaped steel during hoisting and fixing. Usually, one type of hoist can only fix one specific shape of irregular special-shaped steel. In some complex building engineering, when multiple complex large-span special-shaped steels are needed, different combination tower cranes must be frequently replaced to complete the hoisting task. This not only consumes a lot of time in the hoisting process for replacing the hoist, resulting in a significant reduction in construction efficiency, but also requires more types of hoists, increasing the construction cost. 2. When the existing combination tower crane is used to hoist and fix the special-shaped steel, the process of adjusting the fixing structure relies on manual pushing of the upper clamping structure until the special-shaped steel is clamped in place. In large-span construction work, due to the large demand for special-shaped steel, workers need to frequently manually operate the hoist for clamping and fixing. However, such hoists are usually large in size, which not only takes time and effort to operate, but also puts a heavy workload on the workers, further reducing the overall work efficiency.

[0004] Therefore, it is necessary to invent a complex large-span special-shaped steel and concrete combined tower lifting appliance and overall lifting method to solve the above problems. SUMMARY

[0005] To solve the above problems, the application provides a complex large-span special-shaped steel and concrete combined tower lifting appliance and overall lifting method.

[0006] To achieve the above purpose, the application provides the following technical scheme: a complex large-span special-shaped steel and concrete combined tower lifting appliance and overall lifting method, comprising a lifting appliance support plate, an adjustable fixing mechanism and a driving assembly are arranged at the upper end of the lifting appliance support plate. The adjustable fixing mechanism comprises four telescopic plates inserted at both ends of the lifting appliance support plate, a first clamping plate is fixed at one end of each of the four telescopic plates, a first limiting sliding groove is formed on one side of each of the four first clamping plates, a lifting plate is slidably connected to the inner wall of each of the four first limiting sliding grooves, a support shaft is connected at both ends of the bottom of each of the four lifting plates, four pad plates are fixed at one end of each of the eight support shafts, a connecting groove is formed on one side of the top of each of the four pad plates, a second clamping plate is hinged at the edge of one end of each of the four pad plates, a hydraulic rod is rotatably connected to the inner wall of each of the four connecting grooves, one end of each of the four hydraulic rods is rotatably connected to one side of each of the four second clamping plates, a recess is formed at the edge of one end of the top of each of the four second clamping plates, a gasket is rotatably connected to one side of the inner wall of each of the four recesses, and a spring is sleeved on the outer wall of one end of each of the eight support shafts, and both ends of each spring are fixedly connected to one side of each lifting plate and one side of each pad plate. Preferably, a hydraulic cylinder is fixedly arranged on one side of the top of each of the four first clamping plates, a propelling shaft is insertedly connected to the output end of each of the four hydraulic cylinders, and one end of each of the four propelling shafts is fixedly connected to the top of each of the four lifting plates through the inner wall of each of the four first limiting sliding grooves.

[0007] Preferably, a connecting hole is formed in the inner wall of one end of each of the four first clamping plates, a connecting rod is fixedly arranged at one end of the bottom of each of the four lifting plates, the outer wall of each of the four connecting rods is insertedly connected to the inner wall of each of the four connecting holes, and a threaded hole is formed in the inner wall of each of the four telescopic plates.

[0008] Preferably, an installation groove is formed at the middle position of the bottom of the lifting appliance support plate, and a lifting butt joint buckle is mounted at both ends of the top of the lifting appliance support plate.

[0009] Preferably, the driving assembly comprises four second limiting sliding grooves opened at both ends of the inner wall of the hanger support plate, both ends of the inner wall of the hanger support plate are rotationally connected with two bidirectional screws, and the outer walls of both ends of the two bidirectional screws are respectively penetratingly connected with the inner walls of the four second limiting sliding grooves, and the outer walls of the four telescopic plates are respectively slidingly connected with the inner walls of the four second limiting sliding grooves.

[0010] Preferably, the outer walls of both ends of the two bidirectional screws are respectively threadedly connected with the inner walls of the four threaded holes, one side of the top of the hanger support plate is rotationally connected with a rotating shaft, and one side of the top of the hanger support plate is provided with a motor, and one end of the rotating shaft is fixedly connected with the output end of the motor.

[0011] Preferably, the outer walls of both ends of the two bidirectional screws are respectively threadedly connected with the inner walls of the four threaded holes, one side of the top of the hanger support plate is rotationally connected with a rotating shaft, and one side of the top of the hanger support plate is provided with a motor, and one end of the rotating shaft is fixedly connected with the output end of the motor.

[0012] Technical effects and advantages of the present application: The present application adjusts the width of the two end first clamping plates by setting the telescopic plate on the hanger support plate, and adjusts the height between the pad plate and the hanger support plate by pushing the lifting plate through the hydraulic cylinder at the bottom of the two end first clamping plates, so as to adapt to the thickness of different special-shaped steels, and the second clamping plate is set on the pad plate and is pushed by the hydraulic rod to rotate and stand up, so as to clamp or support the hollow area at the bottom of the special-shaped steel, so that the combined tower crane hanger device can adapt to the fixation of multiple different regular-shaped special-shaped steels at the same time, without the help of more hangers, and the time for replacing the hanger during hoisting is also reduced, the construction efficiency is improved, and the construction cost is also reduced. When the adjustable fixing mechanism is adjusted and clamped in size, the motor is started to rotate with the rotating shaft, and then one of the two bidirectional screws is rotated through the two second tooth rings and the second synchronous belt, and the other bidirectional screw is synchronously rotated under the meshing transmission of the first tooth ring and the first synchronous belt, and then the telescopic plates at both ends of the hanger support plate are relatively moved under the thread connection between the bidirectional screw and the threaded hole in the telescopic plate, so as to realize the adjustment of the clamping distance, without manual adjustment by the staff, so as to improve the work efficiency and reduce the work burden.

[0013] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the structures indicated in the specification, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0015] Figure 1 is a schematic diagram of the whole application; Figure 2 is a schematic diagram of the second clamp plate being rotated and erected on the pad plate; Figure 3 is a schematic diagram of the adjustable fixing structure; Figure 4 is a schematic diagram of the connection between the pad plate and the second clamp plate; Figure 5 is a schematic diagram of the bottom of the lifting tool support plate; Figure 6 is a schematic diagram of the inside of the lifting tool support plate; Figure 7 is a schematic diagram of the driving assembly; Figure 8 is a schematic diagram of the enlarged view of position A in the description of the present application. Figure 7

[0016] In the figure: 1, lifting tool support plate; 2, adjustable fixing mechanism; 201, telescopic plate; 202, first clamp plate; 203, first limiting sliding groove; 204, lifting plate; 205, support shaft; 206, pad plate; 207, connecting groove; 208, second clamp plate; 209, hydraulic rod; 210, groove; 211, gasket; 212, spring; 213, hydraulic cylinder; 214, propulsion shaft; 3, connecting hole; 4, connecting rod; 5, threaded hole; 6, mounting groove; 7, driving assembly; 701, second limiting sliding groove; 702, bidirectional screw rod; 703, rotating shaft; 704, motor; 705, first gear ring; 706, first synchronous belt; 707, second gear ring; 708, second synchronous belt; 8, hoisting butt joint buckle. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0018] The present application provides a lifting tool support plate​Figures 1-8 The utility model provides a complex large-span special-shaped steel and concrete combined tower hoist and overall hoisting method, including hoist support plate 1, its characterized in be: the upper end of hoist support plate 1 is provided with adjustable fixing mechanism 2 and drive assembly 7, Adjustable fixing mechanism 2 includes four telescopic plates 201 inserted in both ends of hoist support plate 1, and the one end of four telescopic plates 201 is fixedly provided with first clamping plate 202, the side of four first clamping plates 202 is provided with first limiting sliding slot 203, the inner wall of four first limiting sliding slots 203 is slidably connected with lifting plate 204, the both ends of the bottom of four lifting plates 204 are insertedly connected with support shaft 205, the one end of eight support shafts 205 is fixedly provided with four gaskets 206, the top of four gaskets 206 is provided with connecting groove 207 on one side, the edge of one end of four gaskets 206 is hingedly connected with second clamping plate 208, the inner wall of four connecting grooves 207 is rotatably connected with hydraulic rod 209, and the one end of four hydraulic rods 209 is rotatably connected with the side of four second clamping plates 208, the edge of one end of the top of four second clamping plates 208 is provided with recess 210, the side of the inner wall of four recesses 210 is rotatably connected with gasket 211, the outer wall of the one end of eight support shafts 205 is sleeved with spring 212, and the both ends of each spring 212 are fixedly connected with the side of each lifting plate 204 and the side of each gasket 206, and after the second clamping plate 208 is erected, as shown in the description accompanying drawings Figure 4 As shown, the gasket 210 on one side is supported at ninety degrees with the recess 211, and the bottom can also be supported when supporting the irregular special-shaped steel from inside, preventing the special-shaped steel from falling due to excessive weight during hoisting. In use, first, according to the appearance size of the complex large-span special-shaped steel, the tower clamp is adjusted to clamp and fix the special-shaped steel, and before hoisting the special-shaped steel, the clamp is connected with the crane through the two hoisting butt buckles 8 at the top of the clamp support plate 1, and the adjustable fixing mechanism 2 is driven by the driving assembly 7 to clamp, in the clamping process, according to the thickness of the special-shaped steel, the hydraulic cylinder 213 at the top of the two first clamping plates 202 is started to push the lifting plate 204 to slide in the first limiting sliding groove 203 through the pushing shaft 214, so as to adjust the height distance between the bottom pad 206 and the clamp support plate 1, facilitate the bottom support of the special-shaped steel with different thickness in the clamping and hoisting process, then according to the width of the special-shaped steel, the telescopic plates 201 at both ends are driven by the driving assembly 7 to extend and retract at both ends of the clamp support plate 1, so as to adjust the clamping width of the adjustable fixing mechanism 2, so that it can adapt to more special-shaped steels with different widths, and in the process of adjusting the clamping width, the bottom support area composed of the support shaft 205 and the pad 206 below can be set to be longer in length, which is convenient for supporting the special-shaped steel with large width, and when the special-shaped steel with small width is encountered, the two pads 206 are pressed against each other, which will compress the spring 212, so that the support shaft 205 is inserted into the bottom of the lifting plate 204, so that the pads 206 will not be hindered when the support range is reduced, which not only increases the bottom support area, but also reduces the support area without obstruction, the hydraulic rod 209 at the top of the pad 206 is started to push the second clamping plate 208 at the top to rotate and rise, for part of the irregular special-shaped steel, after being pressed by the first clamping plate 202 and supported by the pad 206 at the bottom, the second clamping plate 208 is raised to further support and fix the inner concave area at the bottom of the special-shaped steel, so that the large-span special-shaped steel can be transported more stably after being lifted, and it is not easy to fall off, at the same time, the clamp is provided with the adjustable fixing mechanism 2, which can adapt to more irregular special-shaped steels, without the need of more clamps for hoisting different special-shaped steels, improving the hoisting efficiency and reducing the construction cost.

[0019] The hydraulic cylinder 213 is fixed on one side of the top of the four first clamping plates 202, the output end of the four hydraulic cylinders 213 is connected with the pushing shaft 214, one end of the four pushing shafts 214 is respectively connected with the top of the four lifting plates 204 through the inner wall of the four first limiting sliding grooves 203, and when the hydraulic cylinder 213 drives the pushing shaft 214 to slide in the first limiting sliding groove 203 with the lifting plate 204, the first limiting sliding groove 203 limits the lifting plate 204, so that it will not be separated from the first limiting sliding groove 203; Further, the inner wall of one end of the four first clamping plates 202 is provided with a connecting hole 3, one end of the bottom of the four lifting plates 204 is fixedly provided with a connecting rod 4, and the outer wall of the four connecting rods 4 is respectively connected with the inner wall of the four connecting holes 3, and the inner wall of the four telescopic plates 201 is provided with a threaded hole 5. When the lifting plate 204 is pushed to slide in the first limiting sliding groove 203 by the hydraulic cylinder 213, the connecting rod 4 at the upper end is inserted into the connecting hole 3 in the first clamping plate 202, so that it can maintain relative stability during lifting and supporting.

[0020] The middle position of the bottom of the lifting tool support plate 1 is provided with a mounting groove 6, and the top of the lifting tool support plate 1 is provided with a lifting butt joint buckle 8. The lifting tool support plate 1 is connected with the connecting member at the upper end of the crane through the lifting butt joint buckle 8 during use. Further, the driving assembly 7 comprises four second limiting sliding grooves 701 provided on the inner wall of the lifting tool support plate 1 at both ends of the two sides, both ends of the inner wall of the lifting tool support plate 1 are rotatably connected with a bidirectional screw rod 702, and the outer walls of both ends of the two bidirectional screw rods 702 are respectively connected with the inner walls of the four second limiting sliding grooves 701, and the outer walls of the four telescopic plates 201 are respectively connected with the inner walls of the four second limiting sliding grooves 701.

[0021] The outer walls of both ends of the two bidirectional screw rods 702 are respectively connected with the inner walls of the four threaded holes 5, one side of the top of the lifting tool support plate 1 is rotatably connected with a rotating shaft 703, and the top of the lifting tool support plate 1 is provided with a motor 704, and one end of the rotating shaft 703 is fixedly connected with the output end of the motor 704.

[0022] The outer walls of both ends of the two bidirectional screw rods 702 are respectively connected with the inner walls of the four threaded holes 5, one side of the top of the lifting tool support plate 1 is rotatably connected with a rotating shaft 703, and the top of the lifting tool support plate 1 is provided with a motor 704, and one end of the rotating shaft 703 is fixedly connected with the output end of the motor 704.

[0023] Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood that modifications can be made to the foregoing embodiments, or additional implementations can be implemented, without departing from the spirit and scope of the inventive subject matter. Accordingly, the present application is not limited to the implementations described herein, but is intended to be defined by the claims set forth below, and equivalents thereof.

Claims

1. A complex, large-span, irregularly shaped steel-concrete composite tower crane, comprising a crane support plate (1), characterized in that: The upper end of the lifting support plate (1) is provided with an adjustable fixing mechanism (2) and a drive assembly (7); The adjustable fixing mechanism (2) includes four telescopic plates (201) inserted at both ends of the lifting support plate (1). A first clamping plate (202) is fixed to one end of each of the four telescopic plates (201). A first limiting groove (203) is opened on one side of each of the four first clamping plates (202). A lifting plate (204) is slidably connected to the inner wall of each of the four first limiting grooves (203). Support shafts (205) are inserted through both ends of the bottom of each of the four lifting plates (204). Four pads (206) are fixed to one end of each of the eight support shafts (205). A connecting groove (207) is opened on one side of the top of each of the four pads (206). A second clamping plate (208) is hinged at one end of the edge of the four connecting grooves (207). A hydraulic rod (209) is rotatably connected to the inner wall of each of the four connecting grooves (207). One end of each of the four hydraulic rods (209) is rotatably connected to one side of each of the four second clamping plates (208). A groove (210) is provided at the edge of one end of the top of each of the four second clamping plates (208). A gasket (211) is rotatably connected to one side of the inner wall of each of the four grooves (210). A spring (212) is sleeved on the outer wall of one end of each of the eight support shafts (205). Both ends of each spring (212) are fixedly connected to one side of each lifting plate (204) and one side of each pad (206).

2. The complex, large-span, irregularly shaped steel-concrete composite tower crane according to claim 1, characterized in that: Hydraulic cylinders (213) are fixedly provided on one side of the top of the four first clamping plates (202). The output ends of the four hydraulic cylinders (213) are connected to the push shafts (214), and one end of the four push shafts (214) passes through the inner wall of the four first limiting slides (203) and is fixedly connected to the top of the four lifting plates (204).

3. The complex, large-span, irregularly shaped steel-concrete composite tower crane according to claim 1, characterized in that: The inner walls of the four first clamping plates (202) are provided with connecting holes (3), and the bottom ends of the four lifting plates (204) are fixed with connecting rods (4). The outer walls of the four connecting rods (4) are respectively inserted and connected to the inner walls of the four connecting holes (3). The inner walls of the four telescopic plates (201) are provided with threaded holes (5).

4. A complex, large-span, irregularly shaped steel-concrete composite tower crane according to claim 1, characterized in that: The bottom of the lifting support plate (1) is provided with an installation groove (6) in the middle position, and the top two ends of the lifting support plate (1) are provided with lifting docking buckles (8).

5. A complex, large-span, irregularly shaped steel-concrete composite tower crane according to claim 1, characterized in that: The drive assembly (7) includes four second limiting grooves (701) on both sides of the inner wall of the lifting support plate (1). Both ends of the inner wall of the lifting support plate (1) are rotatably connected to a two-way screw rod (702), and the outer walls of the two two-way screw rods (702) are respectively inserted and connected to the inner walls of the four second limiting grooves (701). The outer walls of the four telescopic plates (201) are respectively slidably connected to the inner walls of the four second limiting grooves (701).

6. A complex, large-span, irregularly shaped steel-concrete composite tower crane according to claim 5, characterized in that: The outer walls of the two bidirectional lead screws (702) are respectively threaded to the inner walls of the four threaded holes (5). A rotating shaft (703) is rotatably connected to one side of the top of the lifting plate (1). A motor (704) is installed on one side of the top of the lifting plate (1), and one end of the rotating shaft (703) is fixedly connected to the output end of the motor (704).

7. A complex, large-span, irregularly shaped steel-concrete composite tower crane according to claim 6, characterized in that: A first toothed ring (705) is fixedly provided at the middle position of the outer wall of each of the two bidirectional lead screws (702). A first synchronous belt (706) meshes and drives between the outer walls of the two first toothed rings (705). A second toothed ring (707) is fixedly provided on the outer wall of one end of one of the bidirectional lead screws (702) and the outer wall of one end of the shaft (703). A second synchronous belt (708) meshes and drives between the outer walls of the two second toothed rings (707). The outer wall of the second synchronous belt (708) is inserted and connected to the top of the lifting support plate (1).

8. A complex, large-span, irregularly shaped steel-concrete composite tower crane according to claim 7, characterized in that: A battery is installed on the inner wall of one end of the lifting support plate (1). A control switch is fixedly provided on one side of the lifting support plate (1), and the motor (704) is electrically connected to the battery through the control switch.

9. The method for hoisting a complex, large-span, irregularly shaped steel-concrete composite tower crane according to claim 1, characterized in that, The method is as follows: Step 1: First, adjust the tower crane according to the appearance and size of the complex large-span irregular steel so that it can fully clamp and fix the irregular steel. Before hoisting the irregular steel, the crane can be connected to the crane through the two hoisting docking buckles (8) on the top of the crane support plate (1). Then, the adjustable fixing mechanism (2) is driven by the drive assembly (7) to clamp the steel. Step two: During the clamping process, the hydraulic cylinders (213) at the top of the two first clamping plates (202) can be activated according to the thickness of the irregular steel. The hydraulic cylinders (213) push the lifting plate (204) through the propulsion shaft (214) to slide in the first limit slide groove (203), thereby adjusting the height distance between the bottom pad plate (206) and other structures and the lifting support plate (1). This facilitates bottom support for irregular steel of different thicknesses during clamping and lifting. Then, according to the width of the irregular steel, the drive assembly (7) drives the telescopic plates (201) at both ends to extend and retract at both ends of the lifting support plate (1), thereby adjusting the adjustable fixing mechanism (2). The clamping width allows it to adapt to more irregular steels of different widths. During the adjustment of the clamping width, the bottom support area formed by the support shaft (205) and the pad (206) can be set to a longer length, which is convenient for supporting irregular steels with a larger width. When encountering irregular steels with a smaller width, the pads (206) at both ends will compress the spring (212) when they are pressed against each other, which will cause the support shaft (205) to pass through the bottom of the lifting plate (204). This ensures that the pads (206) will not be obstructed when the support range is reduced, which increases the bottom support area and allows the support panel to be reduced without obstruction. Step 3. Finally, according to the shape of the irregular steel, the distance between the first clamping plates (202) is adjusted to adapt to irregular steel of different widths, and the height between the pad plate (206) and the lifting support plate (1) is adjusted to adapt to irregular steel of different thicknesses. The hydraulic rod (209) is activated at the top of the pad plate (206) to push the second clamping plate (208) at the top to rotate and rise. For some irregular irregular steel, after being squeezed by the first clamping plate (202) and supported at the bottom by the pad plate (206), the second clamping plate (208) is raised to provide further support and fixation in the concave area at the bottom of the irregular steel, so that the large-span irregular steel can be transported more stably after being lifted, and it is not easy to fall off. At the same time, the lifting device is equipped with an adjustable fixing mechanism (2) so that it can adapt to more irregular irregular steel, with a wider range of applications and improved convenience of use.

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