A full extrusion attachment device for internal climbing tower cranes

Abstract

The present invention discloses a fully extruded attachment device for an internal climbing tower crane, which relates to the technical field of construction equipment. The present invention includes at least two support main beams, an anti-torsion beam fixedly connected between the two support main beams, an anti-extrusion reinforcing rib fixedly connected to one side of the support main beam, a bending-resistant truss fixedly connected to one end of the anti-extrusion reinforcing rib, telescopic corbels slidably connected to both ends of the support main beam, and a long-stroke oil cylinder fixed to one side of the support main beam for driving the telescopic corbels to slide left and right. A vertical jack is fixedly connected to the side wall of the telescopic corbel for adjusting the height of the support main beam along the length direction of the tower crane. Through the arrangement of the horizontal jack, the vertical jack and the climbing components, the horizontal jack and the vertical jack can provide a tightening force before and after climbing, so that the stability of the support is greatly improved on the premise of obtaining a balanced pre-tightening force, thereby effectively preventing the tower crane from shaking.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction equipment, and particularly relates to a full extrusion attachment device for an internal climbing tower crane. Background Art

[0002] A tower crane is one of the most commonly used lifting equipment on a construction site, also known as a "tower hoist". It hoists construction raw materials such as steel bars, wooden beams, concrete, and steel pipes for construction with standard sections that are connected in sections one by one. A tower crane is an essential equipment on a construction site. As the construction of the building structure progresses, the tower crane needs to be lifted synchronously. Currently, the tower cranes in the prior art mainly achieve climbing through the method of jacking + inverted beam. The climbing efficiency of the tower crane directly affects the construction progress and project duration benefits of a construction project.

[0003] During the traditional climbing of a tower crane, the construction of the inverted beam is difficult, with low efficiency, requiring high-altitude welding operations and a large number of embedded reinforcements. Therefore, the "internal climbing tower crane without attachment parts" emerged. However, how to achieve "no embedded parts" and "fall prevention during the climbing process" are the core problems that this technology needs to solve. Summary of the Invention

[0004] The purpose of the present invention is to provide a full extrusion attachment device for an internal climbing tower crane, which solves the problems of how to achieve "no embedded parts" and "fall prevention during the climbing process" when the existing full extrusion attachment device for an internal climbing tower crane is in use.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0006] The present invention is a full extrusion attachment device for an internal climbing tower crane, including at least two support main beams, an anti-torsion beam fixedly connected between the two support main beams, an anti-extrusion reinforcing rib fixedly connected to one side of the support main beam, a bending-resistant truss fixedly connected to one end of the anti-extrusion reinforcing rib, a telescopic bracket slidingly connected to both ends of the support main beam, and a long-stroke oil cylinder fixed to one side of the support main beam for driving the telescopic bracket to slide left and right. A vertical jack is fixedly connected to the side wall of the telescopic bracket for adjusting the height of the support main beam along the length direction of the tower crane. A horizontal jack is respectively installed at one end and the top of the bending-resistant truss for pressing against the wall surface to provide a supporting force for the support main beam;

[0007] Wherein, a climbing component is also fixedly installed on the side wall of the anti-extrusion reinforcing rib for driving the support main beam to slide along the length direction of the tower barrel.

[0008] Further, the climbing component includes a hydraulic push rod fixedly connected to one side of the anti-extrusion reinforcing rib. The output end of the hydraulic push rod is fixedly connected with a pulley frame. The middle part of the inner side wall of the pulley frame is rotationally connected with a climbing pulley through a bearing. The two sides of the inner side wall of the pulley frame are rotationally connected with balance pulleys through bearings. A driving mechanism for driving the climbing pulley is further arranged on the side wall of the pulley frame.

[0009] Further, the driving mechanism includes a driving motor fixedly installed on one side of the pulley frame. One side of the driving motor is fixedly connected with a bracket. One end of the bracket is fixedly connected with a protective cover. One end of the driving motor is fixedly connected with a connecting shaft. One end of the connecting shaft is fixedly connected with the climbing pulley.

[0010] Further, an electromagnet and a buckle are fixedly connected to the inner wall of the protective cover. A through hole is opened in the middle of the electromagnet. The through hole is in clearance fit with the connecting shaft.

[0011] Further, a sliding table seat is slidably connected to the side wall of the connecting shaft. A limiting rod is fixedly connected to the surface of the sliding table seat. A limiting hole adapted to the limiting rod is opened in the side wall of the buckle.

[0012] Further, a bearing is sleeved on the outer wall of the connecting shaft. The outer wall of the bearing is fixedly connected with the bracket. A soft steel bracket is clamped between the bearing and the sliding table seat.

[0013] Further, the electromagnet and the driving motor are electrically connected to an external power supply and a control switch through wires. The sliding table seat is made of iron, and the energizing speed of the electromagnet is faster than the opening and closing speed of the driving motor.

[0014] Further, the sliding table seat can slide along the connecting shaft to the side away from the pulley frame when the electromagnet is energized, causing the soft steel bracket to undergo elastic deformation. And the soft steel bracket can drive the sliding table seat to slide to the side away from the soft steel bracket when restoring elastic deformation.

[0015] Further, one end of the hydraulic push rod is fixedly connected with a mounting seat. A shear key is lapped on one side of the mounting seat. A high-strength bolt is threadedly connected between the mounting seat and the shear key. The mounting seat is fixedly connected with the anti-extrusion reinforcing rib through the high-strength bolt.

[0016] The full-extrusion attachment device for internal climbing tower cranes provided by the present invention has the following beneficial effects compared with the prior art:

[0017] By setting the horizontal jack, vertical jack and climbing components, the horizontal jack and vertical jack can provide a clamping force before and after climbing, so that the device greatly improves the stability of the support under the premise of obtaining a balanced preload, thereby effectively preventing the tower crane from shaking. Before climbing, the electromagnet can be energized to adsorb the slide seat and move so that the limit rod is disengaged from the buckle, and the motor can drive the climbing pulley to move, so that the entire supporting structure can climb freely. After climbing, the electromagnet is de-energized and the soft steel bracket pushes the slide seat to move, so that the limit rod is automatically engaged, which effectively prevents the climbing pulley from rotating, improves the safety performance, and solves the problem of how to achieve "no embedded parts" and "anti-falling during the climbing process" in the prior art.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the drawings required for the implementation methods or the prior art descriptions are briefly introduced below. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a side view structural schematic diagram of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the climbing component of the present invention;

[0023] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a climbing component of the present invention;

[0024] Figure 5 For the present invention Figure 4 Schematic diagram of the local structure in.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Support main beam; 2. Anti-twist beam; 3. Anti-extrusion reinforcement ribs; 4. Anti-bending truss; 5. Telescopic corbel; 6. Vertical jack; 7. Horizontal jack; 8. Hydraulic push rod; 9. Pulley frame; 10. Climbing pulley; 11. Balancing pulley; 12. Driving motor; 13. Bracket; 14. Protective cover; 15. Connecting shaft; 16. Electromagnet; 17. Buckle; 18. Through hole; 19. Slide seat; 20. Limit rod; 21. Limit hole; 22. Bearing; 23. Mild steel bracket; 24. Shear key; 25. High-strength bolt; 26. Mounting seat; 27. Tower corbel. DETAILED DESCRIPTION

[0027] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the present invention is a full-extrusion attachment device for an inner climbing tower crane, comprising at least two supporting main beams 1, an anti-torsion beam 2 fixedly connected between the two supporting main beams 1, the anti-torsion beam 2 being specifically a hollow truss anti-torsion beam, the hollow truss anti-torsion beam using a lightweight structure to prevent torsional instability when the supporting main beam 1 is subjected to force, an anti-extrusion reinforcement rib 3 fixedly connected to one side of the supporting main beam 1, an anti-extrusion reinforcement rib 3 is arranged at the end of the supporting main beam 1 to prevent the steel plate at the end of the supporting main beam 1 from being deformed by the telescopic corbel 5, a bending truss 4 fixedly connected to one end of the anti-extrusion reinforcement rib 3, a telescopic corbel 5 slidably connected to both ends of the supporting main beam 1, and a long-stroke cylinder fixed to one side of the supporting main beam 1 for driving the telescopic corbel 5 to slide left and right.

[0030] Specifically, the long-stroke cylinder is used to provide driving force for the telescopic corbel. After the output end of the long-stroke cylinder is extended, it pushes the telescopic corbel to slide toward the side away from the supporting main beam 1, thereby pushing the telescopic corbel 5 to the inner wall of the core tube to form a fixed support structure.

[0031] The side wall of the telescopic bracket 5 is fixedly connected with a vertical jack 6. The vertical jack 6 can move downward, so that the telescopic bracket 5 is fixed to the inner wall of the core tube, and is used to support the main beam 1 to adjust the height along the length direction of the tower crane. One end and the top of the bending-resistant truss 4 are respectively installed with horizontal jacks 7.

[0032] Preferably, in this embodiment, the number of the horizontal jacks 7 is eight. The eight horizontal jacks are evenly divided into four groups, with two horizontal jacks 7 in each group. The two horizontal jacks 7 face one direction and jointly form four-sided support. No matter which side is stressed, the force will be dispersed to other sides, and the influence of the external force on the tower crane is reduced by dispersing the force, and the wall surface is tightened to provide a supporting force for the main beam 1.

[0033] Furthermore, each group of horizontal jacks 7 can be telescopically adjusted to achieve the function of tightening the wall surface. Before and after the tower crane climbs, all the horizontal jacks 7 apply a pre-pressure of 25-35t to the wall body, and the overall stability of the supporting beam components is greatly increased through the self-balanced pre-tightening force, so as to prevent the tower crane from shaking during use.

[0034] Wherein, a climbing component is also fixedly installed on the side wall of the anti-extrusion reinforcing rib 3, which is used to drive the main supporting beam 1 to slide along the length direction of the tower barrel, and the overall support of the supporting beam component is realized through the climbing component.

[0035] As Figure 1 and Figure 2 shown, the climbing component includes a hydraulic push rod 8 fixedly connected to one side of the anti-extrusion reinforcing rib 3. The output end of the hydraulic push rod 8 is fixedly connected with a pulley frame 9. The middle part of the inner side wall of the pulley frame 9 is rotationally connected with a climbing pulley 10 through a bearing. The two sides of the inner side wall of the pulley frame 9 are rotationally connected with balance pulleys 11 through bearings. A driving mechanism for driving the climbing pulley 10 is also arranged on the side wall of the pulley frame 9. The climbing pulley 10 is driven through the driving mechanism to realize the climbing of the device. Specifically, the hydraulic push rod 8 can push the pulley frame 9 to move. The hydraulic push rod 8 pushes the pulley frame 9 to contact the wall surface, and at the same time, it can also contract to retract the pulley frame 9.

[0036] As Figure 3 、 Figure 4 and Figure 5As shown in the figure, the driving mechanism includes a driving motor 12 fixedly installed on one side of the pulley frame 9. One side of the driving motor 12 is fixedly connected with a bracket 13. One end of the bracket 13 is fixedly connected with a protective cover 14. One end of the driving motor 12 is fixedly connected with a connecting shaft 15. One end of the connecting shaft 15 is fixedly connected with the climbing pulley 10. The protective cover 14 is used to protect the components therein. When the driving motor 12 works, it can drive the connecting shaft 15 to move, and drive the device to lift through the connecting shaft 15. During the lifting process of the climbing pulley 10, the balance pulley 11 is used to maintain the balance state. In other embodiments, anti-slip grooves can also be provided on the outer walls of the balance pulley 11 and the climbing pulley 10 to increase the friction on the surfaces of the balance pulley 11 and the climbing pulley 10.

[0037] As Figure 3 , Figure 4 and Figure 5 shown in the figure, an electromagnet 16 and a buckle 17 are also fixedly connected to the inner wall of the protective cover 14. A through hole 18 is provided in the middle of the electromagnet 16. The through hole 18 is in clearance fit with the connecting shaft 15. During the rotation of the connecting shaft 15, it is in an independent state from the electromagnet and does not affect each other. Therefore, the rotation of the connecting shaft 15 will not cause wear to the electromagnet 16.

[0038] As Figure 3 , Figure 4 and Figure 5 shown in the figure, a sliding table seat 19 is also slidably connected to the side wall of the connecting shaft 15. A limiting rod 20 is fixedly connected to the surface of the sliding table seat 19. A limiting hole 21 adapted to the limiting rod 20 is provided on the side wall of the buckle 17. The connecting shaft 15 can be locked by inserting the limiting hole 21 into the limiting rod 20. The number of the limiting rods 20 and the limiting holes 21 is several and they are distributed in a ring shape. The ends of the limiting holes 21 and the limiting rods 20 are both smoothly transitioned. Therefore, it is convenient for the limiting rod 20 to be inserted. When the limiting rod 20 is separated from the limiting hole 21, the sliding table seat 19 will rotate along with the connecting shaft when sliding on the outer wall of the connecting shaft 15.

[0039] As Figure 3 , Figure 4 and Figure 5 shown in the figure, a bearing 22 is sleeved on the outer wall of the connecting shaft 15. The outer wall of the bearing 22 is fixedly connected with the bracket 13. A soft steel bracket 23 is clamped between the bearing 22 and the sliding table seat 19. The bearing 22 can improve the stability of the connecting shaft 15, and the soft steel bracket 23 has the potential energy of elastic deformation.

[0040] As Figure 3 , Figure 4 and Figure 5As shown, the electromagnet 16 and the drive motor 12 are electrically connected to the external power supply and the control switch through wires. The slide seat 19 is made of iron, and the power-on speed of the electromagnet 16 is faster than the opening and closing speed of the drive motor 12. When in use, the supporting main beam 1 can also be provided with a power supply to power the internal electrical components.

[0041] like Figure 3 , Figure 4 and Figure 5 As shown, the slide seat 19 can slide along the connecting shaft 15 to the side away from the pulley frame 9 when the electromagnet 16 is energized, so that the soft steel bracket 23 undergoes elastic deformation, and the soft steel bracket 23 can drive the slide seat 19 to slide to the side away from the soft steel bracket 23 when restoring the elastic deformation. Therefore, the electromagnet 16 is a limited opening and closing switch, that is, the electromagnet 16 can be energized to adsorb the slide seat 19 to achieve detachment, and the electromagnet 16 can be powered off to achieve engagement.

[0042] like Figure 3 , Figure 4 and Figure 5 As shown, one end of the hydraulic push rod 8 is fixedly connected to a mounting seat 26, one side of the mounting seat 26 is overlapped with a shear key 24, a high-strength bolt 25 is threadedly connected between the mounting seat 26 and the shear key 24, and the mounting seat 26 is fixedly connected to the anti-extrusion reinforcement rib 3 through the high-strength bolt 25.

[0043] As an example, the full-extrusion attachment device of the inner climbing tower crane given in this example is working / in use: the tower crane is provided with three support beam devices, which are respectively located at the bottom, middle and top of the tower crane. When the tower crane is working, the bottom support beam bears the vertical load and one component of the horizontal force couple generated by the tower crane bending moment load, and the middle (or top, not stressed at the same time) support beam bears the other component of the horizontal force couple generated by the tower crane bending moment load. Since the horizontal jack of the support beam has applied a pre-tightening force in advance, its stress state is nothing more than an increase or decrease in pressure, and no tension will occur. Therefore, all attachment points are in a 100% pressure state, and a tower body corbel 27 is also provided inside the bottom support main beam, and the bottom support main beam is fixed by the tower body corbel.

[0044] By setting the horizontal jack 7, the vertical jack 6 and the climbing components, the horizontal jack 7 and the vertical jack 6 can provide a clamping force before and after climbing, so that the device greatly improves the stability of the support under the premise of obtaining a balanced pre-tightening force, thereby effectively preventing the tower crane from shaking.

[0045] Before climbing, the electromagnet 16 is energized to attract the sliding seat 19 to move so that the limit rod 20 is disengaged from the buckle 17, and the motor 12 is driven to drive the climbing pulley 10 to move, so that the entire supporting structure can climb freely.

[0046] After climbing, the electromagnet 16 is powered off, and the soft steel bracket 23 pushes the slide base 19 to move, so that the limit rod 20 is automatically clamped, effectively preventing the climbing pulley 10 from rotating self, improving the safety performance, and solving the problems of "avoiding embedded parts" and "preventing falling during climbing" in the prior art.

[0047] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0048] After considering the specification and practicing the disclosure herein, those skilled in the art will readily conceive of other embodiments of the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and embodiments are only to be considered as exemplary, and the true scope of the present disclosure is pointed out by the following claims.

Claims

1. An all-extrusion attachment device for an internal climbing tower crane, comprising at least two support main beams (1), an anti-torsion beam (2) fixedly connected between the two support main beams (1), an anti-extrusion reinforcing rib (3) fixedly connected to one side of the support main beam (1), a bending-resistant truss (4) fixedly connected to one end of the anti-extrusion reinforcing rib (3), telescopic corbels (5) slidably connected to both ends of the support main beam (1), and a long-stroke oil cylinder fixed to one side of the support main beam (1) for driving the telescopic corbels (5) to slide left and right, characterized in that: The side wall of the telescopic bracket (5) is fixedly connected with a vertical jack (6) for supporting the main beam (1) to adjust its height along the length direction of the tower crane. One end and the top of the bending-resistant truss (4) are respectively installed with horizontal jacks (7) for pressing against the wall surface to provide support force for supporting the main beam (1). Among them, a climbing component is also fixedly installed on the side wall of the anti-extrusion reinforcing rib (3) for driving the main beam (1) to slide along the length direction of the tower barrel. The climbing component includes a hydraulic push rod (8) fixedly connected to one side of the anti-extrusion reinforcing rib (3). The output end of the hydraulic push rod (8) is fixedly connected with a pulley frame (9). The middle part of the inner side wall of the pulley frame (9) is rotatably connected with a climbing pulley (10) through a bearing. The two sides of the inner side wall of the pulley frame (9) are rotatably connected with balance pulleys (11) through bearings. A driving mechanism for driving the climbing pulley (10) is also arranged on the side wall of the pulley frame (9). The driving mechanism includes a driving motor (12) fixedly installed on one side of the pulley frame (9). One side of the driving motor (12) is fixedly connected with a bracket (13). One end of the bracket (13) is fixedly connected with a protective cover (14). One end of the driving motor (12) is fixedly connected with a connecting shaft (15). One end of the connecting shaft (15) is fixedly connected with the climbing pulley (10). An electromagnet (16) and a buckle (17) are also fixedly connected to the inner wall of the protective cover (14). A through hole (18) is opened in the middle of the electromagnet (16). The through hole (18) is in clearance fit with the connecting shaft (15). A sliding table seat (19) is also slidably connected to the side wall of the connecting shaft (15). A limiting rod (20) is fixedly connected to the surface of the sliding table seat (19). A limiting hole (21) adapted to the limiting rod (20) is opened in the side wall of the buckle (17). A bearing (22) is sleeved on the outer wall of the connecting shaft (15). The outer wall of the bearing (22) is fixedly connected with the bracket (13). A soft steel bracket (23) is clamped between the bearing (22) and the sliding table seat (19). The sliding table seat (19) can slide along the connecting shaft (15) away from the pulley frame (9) when the electromagnet (16) is energized, causing the soft steel bracket (23) to undergo elastic deformation. And the soft steel bracket (23) can drive the sliding table seat (19) to slide away from the soft steel bracket (23) when restoring elastic deformation.

2. The full extrusion attachment device for internal climbing tower crane according to claim 1, wherein The electromagnet (16) and the driving motor (12) are electrically connected to an external power supply and a control switch through wires. The sliding table seat (19) is made of iron.

3. The full extrusion attachment device for internal climbing tower cranes according to claim 1, wherein, One end of the hydraulic push rod (8) is fixedly connected with a mounting seat (26). A shear key (24) is lapped on one side of the mounting seat (26). A high-strength bolt (25) is threadedly connected between the mounting seat (26) and the shear key (24). The mounting seat (26) is fixedly connected with the anti-extrusion reinforcing rib (3) through the high-strength bolt (25).

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