Hook tool type hoisting point device from a climbing tower support beam

Abstract

This invention discloses a hook-type lifting point device for a self-climbing tower crane support beam. It includes several support beams and lifting point assemblies distributed on the support beams. Each lifting point assembly includes a connecting frame and a movable rod. The connecting frame is positioned opposite each other on both sides of the support beams. The movable rod is movably disposed within the connecting frame. When the movable rod is within the connecting frame, it is the direct load-bearing part of the hook device, cooperating with the hook device to lift the support beam. When the movable rod is withdrawn from the connecting frame, the hook device can pass through the connecting frame to the lifting point assembly of the next support beam. This design allows the electric hoist hook to vertically pass through the support beam lifting points and directly reach the next support beam lifting point, eliminating the need for an additional electric hoist on the upper support beam. This reduces the overall weight of the support beam system, decreases the lifting pressure on the tower crane's jacking section, and thus lowers equipment costs.

Description

Technical Field

[0001] This invention relates to the field of civil engineering technology, and specifically to a hook-type lifting point device for a self-climbing tower support beam. Background Technology

[0002] The construction of inverted beams during traditional tower crane climbing is difficult, inefficient, and requires high-altitude welding and extensive pre-embedded reinforcement.

[0003] For high-altitude welding operations, there is a new type of self-climbing tower crane that requires no attachments; see [link to relevant documentation]. Figure 1 It directly utilizes the existing opening 11 of the core tube 1 for climbing, which can shorten the climbing time from 2 days to 3 hours, and reduce reinforcement measures and high-altitude operations, resulting in significant benefits in terms of construction period and economy.

[0004] In this climbing process, the upper beam 3 and the middle beam 4 are lifted by the electric hoist hook 2 set at the lower slewing support of the tower crane. However, the existing traditional tower crane only has one set of electric hoists, but it is necessary to lift the two support beams, the upper beam 3 and the middle beam 4. When the middle beam 4 is lifted, the hook 2 will be blocked by the position of the lifting point of the upper beam 3, and the hook 2 cannot be lowered vertically.

[0005] To address this technical problem, the existing solution is to install another set of electric hoists on the upper beam 3 to lift the middle beam 4. However, this increases the weight of the upper beam 3, requires a larger electric hoist model, and also requires a larger hydraulic cylinder model for the tower crane's lifting section, which undoubtedly leads to a significant increase in costs and reduces safety.

[0006] Therefore, simplifying the structure of self-climbing tower cranes while achieving the lifting of each support beam is a problem that needs to be solved in this field. Summary of the Invention

[0007] In view of the technical problem of complex structure in existing self-climbing tower cranes, the purpose of this invention is to provide a hook-type lifting point device for the support beam of a self-climbing tower crane, which only requires one set of electric hoist devices. This optimizes the structure of existing self-climbing tower cranes that use multiple sets of electric hoist devices and effectively overcomes the problems existing in the prior art.

[0008] To achieve the above objectives, the present invention provides a hook-type lifting point device for a self-climbing tower support beam, comprising a plurality of support beams vertically distributed within the core tube and mounted on the opening of the core tube, and a lifting point assembly distributed on the plurality of support beams. The lifting point assembly includes a connecting frame and a movable rod. The connecting frame is disposed opposite to each other on both sides of the plurality of support beams, and the movable rod is movably disposed within the connecting frame. When the movable rod is located within the connecting frame, it is the direct force-bearing part of the hook device, cooperating with the hook device to lift the support beam. When the movable rod is withdrawn from the connecting frame, the hook device can pass through the connecting frame to the lifting point assembly of the next layer of support beam.

[0009] Furthermore, the connecting frame includes a reinforcing plate, a cantilever plate, and a connecting plate. The cantilever plates are symmetrically arranged, and the reinforcing plate and the connecting plate are arranged opposite to each other and connected to both ends of the cantilever plates to form a frame structure. The reinforcing plate is integrally fixed to the side wall of the support beam.

[0010] Furthermore, the reinforcing plate is provided with mounting holes.

[0011] Furthermore, the connecting plate is provided with pin holes corresponding to the mounting holes.

[0012] Furthermore, the second end of the movable rod passes through the pin hole and the mounting hole in sequence, and can move axially within the pin hole and the mounting hole.

[0013] Furthermore, the movable rod is equipped with an electric component, which drives the movable rod.

[0014] Furthermore, the first end of the movable rod is fitted with an end plate, and the end plate is connected to the movable rod to form an integral structure.

[0015] Furthermore, after the movable rod passes through the pin hole, the end plate is connected to the connecting plate by a locking element.

[0016] The invention provides a hook-type lifting point device for a self-climbing tower crane support beam. Through its mechanism design, the electric hoist hook can vertically pass through the support beam lifting point and directly reach the support beam lifting point on the next floor. This eliminates the need to install an additional electric hoist on the upper support beam, reducing the overall weight of the support beam system and the lifting pressure burden on the tower crane's lifting section, thereby reducing equipment costs.

[0017] Meanwhile, the automated structure of the hook-type lifting point can also automate the pushing and pulling of the lifting point pins. Each support beam pin is automatically pulled out by a motor, which improves construction efficiency, reduces labor, and further enhances the ease of use of the self-climbing tower crane. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of an existing self-climbing tower crane;

[0020] Figure 2 This is an assembly diagram of the hook-type lifting device;

[0021] Figure 3 This is a schematic diagram of the support beam in the hook-type lifting device;

[0022] Figure 4 This is an assembly diagram of the lifting point device in the hook-type lifting device.

[0023] Figure 5 This is a schematic diagram showing the working state of the movable pin in this lifting point device;

[0024] Figure 6 This is a schematic diagram of the assembly of the movable pin and the lead screw motor in this lifting point device;

[0025] Figure 7 This is a schematic diagram of the structural state of the lifting and hoisting device for lifting the upper support beam;

[0026] Figure 8 This is a schematic diagram of the structural state of the support beam during the lifting process of this lifting device.

[0027] The following are the component labels in the attached diagram:

[0028] 1. Core tube; 11. Opening; 2. Hook; 3. Upper beam; 4. Middle beam.

[0029] 100. Support beam 110. Main beam 120. Bending truss 200. Hook 300. Lifting point device 310. Movable pin 320. Cantilever plate 330. Connecting plate 340. Pin end plate 350. Main beam reinforcing plate 360. Fixing component 370. Screw motor. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0031] Existing self-climbing tower cranes have a problem where the electric hoist hook at the top cannot vertically pass through the top support beam to reach the bottom support beam, thus requiring the bottom support beam to be lifted. As a result, one set of electric hoists is installed on each layer of the beam support, which increases costs significantly and also reduces safety.

[0032] Therefore, to address the technical deficiencies of existing self-climbing tower cranes, this solution provides a hook-operated lifting point device for the support beam of the self-climbing tower crane. Through its mechanism design, the electric hoist hook can vertically pass through the upper support beam lifting point and directly reach the middle support beam lifting point. This lifting point successfully solves the aforementioned problems while meeting strength requirements, saving at least one set (4) of large electric hoists for the self-climbing tower crane support beam system, reducing weight, and saving costs.

[0033] Furthermore, the hook-type lifting device for the self-climbing tower support beam provided in this solution is connected in conjunction with the core tube and several support beams 100.

[0034] Specifically, the core tube has a hollow cavity structure, and the tower crane is located inside the core tube. The top of the tower crane is used to connect with the electric hoist device, and the hook device of the electric hoist can extend into the core tube.

[0035] Several openings are evenly distributed along the longitudinal direction of the core tube on both sides. Several support beams 100 are stacked inside the tube, and telescopic devices are installed on both sides at the openings to support the beams 100 inside the core tube. The support beams 100 can be used in conjunction with the electric hoist device at the top to lift the support beams 100 inside the core tube along the core tube.

[0036] Each support beam 100 includes a main beam 110, a plurality of bending trusses 120 and a telescopic device, wherein the plurality of bending trusses 120 are symmetrically arranged on both sides of the main beam 110 to enhance the bending resistance of the main beam 110.

[0037] The telescopic devices are symmetrically arranged on both sides of the main beam 110 and can extend and retract relative to the main beam 110. When the telescopic devices extend, they can be placed across the opening and support several support beams 100 inside the core tube.

[0038] The structure and working principle of the core tube, support beam 100, and electric hoist device are well known to those skilled in the art, and will not be described in detail here.

[0039] In this design, the lifting point assemblies 300 are symmetrically arranged on both sides of the support beam. The hooks 200 in the top electric hoist device cooperate with the lifting point assemblies 300 on both sides of the support beam 100, and simultaneously operate the lifting point assemblies 300 on both sides of the support beam 100 to lift the support beam 100 in a balanced manner.

[0040] Each lifting point assembly 300 includes a movable pin 310, a cantilever plate 320, a connecting plate 330, a pin end plate 340, a fastener 360, and a main beam reinforcing plate 350.

[0041] See Figures 2-4The main beam reinforcing plate 350 is fitted to the side wall of the main beam 110 and fixedly connected to the side wall of the main beam 110. The main beam reinforcing plate 350 is provided with mounting holes, which serve as a support point for the movable pin 310.

[0042] The cantilever plate 320 is used to bear the load of the cantilever beam. One end of the cantilever plate 320 is symmetrically arranged on both sides of the main beam reinforcing plate 350, and the connecting plate 330 is arranged on the other end of the cantilever plate 320, connecting the two sides of the cantilever plate 320 into a whole. The main beam reinforcing plate 350, the cantilever plate 320 and the connecting plate 330 work together to form a frame structure, which forms a working space inside. This enclosed space is sufficient for the hook to fall vertically, solving the problem of the lifting point obstructing the hook.

[0043] Furthermore, the connecting plate 330 is provided with pin holes corresponding to the mounting holes of the main beam reinforcing plate 350, for installing the movable pin 310. The second end of the movable pin 310 can pass through the pin hole and the mounting hole in sequence.

[0044] To prevent the pin from rotating or shifting, a pin end plate 340 is provided at the first end of the movable pin 310. The pin end plate 340 and the movable pin 310 are connected to form an integral structure, and its diameter is slightly larger than the diameter of the pin hole in the connecting plate 330.

[0045] The pin end plate 340 is provided with several locking parts. When the second end of the movable pin 310 passes through the pin hole, the pin end plate 340 and the connecting plate 330 are fitted together and, with the cooperation of the fixing part 360, the pin end plate 340 and the connecting plate 330 are connected to fix the movable pin 310 on the connecting plate 330.

[0046] After the movable pin 310 passes through the working space, the pin of the movable pin 310 can be the direct force-bearing part of the lifting point, and the top hook 200 can be directly hung on the pin of the movable pin 310 to lift the support beam 100 connected to the movable pin 310.

[0047] Also see Figure 5 The movable pin 310 is a pin that can be pushed and pulled axially. The movable pin 310 can be pulled out from the working space. When pulled out, the space enclosed by the cantilever plate 320 and the connecting plate 330 is sufficient for the hook 200 to fall vertically, thus solving the problem of the lifting point obstructing the hook.

[0048] The pulling action of the movable pin 310 here can be done manually, but this process requires a certain amount of manpower and time, and takes only a moment. Figure 6 It is preferable to install a lead screw motor 370 at the end of the movable pin 310. By rotating the lead screw, the movable pin 310 can be pulled out, thereby improving construction efficiency and reducing labor.

[0049] The lifting point assembly constructed by the above scheme is respectively set on both sides of the main beam 110 of each layer of support beam, and the center of the work space formed is on the same axis. The hook 200 of the top electric hoist device can pass through the work space on each layer of support beam 100 to the support beam 100 of the next layer in turn to lift the support beam 100 of the next layer, thus solving the problem of the lifting point blocking the hook.

[0050] Based on the above scheme, a hook-type lifting point device for a self-climbing tower support beam is constructed. Here is an example to illustrate the working process of this lifting point device in a specific application.

[0051] In the initial state, the upper support beam, middle support beam and lower support beam are respectively erected at the opening of the core tube through the telescopic device.

[0052] See Figure 7 When the upper support beam is lifted, the hook 200 of the top electric hoist device is lowered to the movable pin 310 of the upper support beam by the hoisting belt, and hooks the movable pins 310 on both sides of the upper support beam. Then the telescopic devices on both sides of the upper support beam are retracted and disengaged from the opening.

[0053] Secondly, the hook 200 simultaneously operates on the movable pins 310 on both sides of the upper support beam, and simultaneously lifts both sides of the upper support beam to the corresponding openings, extending the telescopic device and setting it on the lifted openings to complete the lifting of the upper support beam.

[0054] See Figure 8 When lifting the middle support beam, the movable pins 310 on both sides of the upper support beam are pulled out from the working space manually or electrically. The hooks 200 of the top electric hoist device pass through the working space to the movable pins 310 on both sides of the middle support beam to lift the middle support beam.

[0055] The process of lifting the middle support beam and the bottom support beam is the same as the process of lifting the upper support beam, so it will not be described in detail here.

[0056] Conversely, the upper support beam, middle support beam, and lower support beam can also be lowered. The specific working process is the same as the lifting process described above, except that the working direction of the hook is reversed. Therefore, it will not be described in detail here.

[0057] The hook-type lifting point device for the self-climbing tower crane support beam, constructed by the above scheme, solves the problem that the hook is blocked by the upper beam lifting point and cannot be lowered vertically when the middle beam of the self-climbing tower crane is lifted, by setting the hook-type lifting points on both sides of the main beam of the support beam, rather than on the top. It eliminates the need to install an electric hoist on the upper support beam, reduces the overall weight of the support beam system, reduces the lifting pressure burden on the tower crane top lifting section, and thus reduces equipment costs.

[0058] Meanwhile, the automated structure of the hook-type lifting point can also automate the pushing and pulling of the lifting point pins. Each support beam pin is automatically pulled out by a motor, which improves construction efficiency, reduces labor, and further enhances the ease of use of the self-climbing tower crane.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A hook-type lifting device for the support beams of a self-climbing gantry crane, comprising a plurality of support beams, wherein the plurality of support beams are vertically distributed within the core tube and erected at the opening of the core tube, characterized in that, It also includes lifting point assemblies, which are symmetrically arranged on both sides of the support beam and are used to cooperate with the hooks in the top electric hoist device to lift the support beam in a balanced manner. The lifting point assembly includes a connecting frame and a movable rod. The connecting frame includes a main beam reinforcing plate, a cantilever plate, and a connecting plate. The main beam reinforcing plate is fitted to the side wall of the main beam and fixedly connected to the side wall of the main beam. The main beam reinforcing plate is provided with mounting holes, which serve as a support point for the movable rod. The cantilever plate is used to bear the load of the cantilever beam. One end of the cantilever plate is symmetrically set on both sides of the main beam reinforcing plate, and the connecting plate is set on the other end of the cantilever plate to connect the two cantilever plates into a whole. The main beam reinforcing plate, cantilever plate and connecting plate work together to form a frame structure, which forms a working space inside. This enclosed space is sufficient for the hook to fall vertically. The connecting plate is provided with pin holes corresponding to the main beam reinforcement mounting holes for installing movable rods. The second end of the movable rod can pass through the pin holes and mounting holes in sequence. A pin end plate is provided at the first end of the movable rod. The pin end plate is connected to the movable pin to form an integral structure. Its diameter is slightly larger than the diameter of the pin hole in the connecting plate. The pin end plate is provided with several locking parts. When the second end of the movable pin passes through the pin hole, the pin end plate is fitted with the connecting plate and, with the help of the fixing parts, the pin end plate and the connecting plate are connected to fix the movable rod on the connecting plate. The movable rod is movably disposed within the connecting frame, penetrating the working space, and has a first working position and a second working position. A lead screw motor is installed at the end of the movable rod; by rotating the lead screw, the movable rod can be pulled out of the working space. When the movable rod is in the first working position, it spans across the hollow structure of the connecting frame, forming the direct force-bearing part of the hook device, thus cooperating with the hook device to lift the support beam of that layer. When the movable rod moves to the second working position, it is pulled out from the hollow structure of the connecting frame, restoring the hollow structure of the connecting frame to a space where the hook device can pass vertically, allowing the hook device to pass through the connecting frame to the lifting point assembly of the next layer of support beam to lift the support beam.

2. The hook-operated lifting point device for the self-climbing tower support beam according to claim 1, characterized in that, The second end of the movable rod passes through the pin hole and the mounting hole in sequence, and can move axially within the pin hole and the mounting hole.

3. The hook-operated lifting point device for the self-climbing tower support beam according to claim 1, characterized in that, The movable rod is equipped with an electric component, which drives the movable rod.

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