Combined lifting appliance suitable for safe turning over of large support structure

Abstract

The utility model discloses a combined lifting appliance suitable for safe turnover of a large support structure, which relates to the technical field of lifting appliances and comprises a turnover main beam, two first upper lifting lugs are symmetrically arranged at the top end of the turnover main beam and connected with a lifting hook of a first crane, and a second upper lifting lug is symmetrically arranged at the top end of the turnover main beam. A plurality of first lower lifting lugs are arranged at the bottom end of the overturning main beam, and the first lower lifting lugs are arranged on the overturning main beam in parallel; a plurality of overturning hoisting parts; stabilizing the main cable; and a plurality of stable hoisting parts. According to the utility model, the first crane utilizes the overturning main beam and the overturning hoisting part to hoist upwards at one end of the bracket structure, and the second crane utilizes the stable main beam and the stable hoisting part to hoist at the other end of the bracket structure, so that the hoisting height of the bracket structure is not changed, and at the moment, the bracket structure is slowly converted from lying to right-angle standing under the hoisting of the first crane; and the overturning and erecting work of the support structure is completed. Therefore, the purpose that the support structure can be adjusted in a self-service mode and is suitable for turning over is effectively achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting tools, in particular to a combined lifting tool suitable for the safe turning-over of large bracket structures. Background Technique

[0002] With the continuous development of bridge technology, temporary bracket structures are widely used in the construction of cable-stayed bridges and suspension bridges. Since the tower columns of such structures are inclined inward, the center of gravity also shifts accordingly, and at this time, large structural deformations and negative bending tensile stresses at the roots of the tower columns will occur. Therefore, most current design units use multiple cross beams to ensure the linearity and stress of the bridge tower. When installing the first cross beam of such structures, in most construction processes, the form of a floor bracket is used to install the cross beam to avoid deformation of the steel tower caused by suspended assembly. Although the height is the lowest at this time, the length of the bracket is mostly more than 30m, so the construction and installation of such large-span brackets are extremely important.

[0003] At present, the common practice for such brackets is segmented installation. However, in order to avoid excessive welding quantity and high-altitude construction times, the length of the standard section is mostly 9 - 12m (i.e., the factory length). At this time, after the bracket section is horizontally assembled on the ground, it can be turned over and hoisted to the designed position by a turning-over lifting tool. At the same time, since such structures are composed of multiple rows of brackets, it is necessary to design a combined lifting tool device suitable for the turning-over of large bracket structures that can be self-adjusted. Content of the Utility Model

[0004] The utility model aims to realize a combined lifting tool suitable for the turning-over of bracket structures that can be self-adjusted, and provides a combined lifting tool suitable for the safe turning-over of large bracket structures.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A combined lifting tool suitable for the safe turning-over of large bracket structures, including a first crane and a second crane, comprising:

[0007] A turning-over main beam, at the top of which two first upper lifting lugs are symmetrically arranged. The two first upper lifting lugs at the top of the turning-over main beam are connected to the hook of the first crane, and a plurality of first lower lifting lugs are arranged at the bottom of the turning-over main beam. The plurality of first lower lifting lugs are arranged in parallel on the turning-over main beam;

[0008] A plurality of turning-over hoisting parts, one ends of the plurality of turning-over hoisting parts are respectively arranged below the turning-over main beam. One ends of the plurality of turning-over hoisting parts are connected to the turning-over main beam through a plurality of first lower lifting lugs. The other ends of the plurality of turning-over hoisting parts are each provided with two connection positions, and the plurality of turning-over hoisting parts are respectively connected to both sides at one end of the bracket structure through the two connection positions;

[0009] A stable main cable, two second upper lifting lugs are symmetrically arranged at the top end of the stable main beam. The two second upper lifting lugs at the top end of the stable main beam are connected to the hooks of the second crane. A number of second lower lifting lugs are arranged at the bottom end of the stable main beam, and a number of the second lower lifting lugs are arranged in parallel on the stable main beam.

[0010] Multiple stable lifting parts, one ends of the multiple stable lifting parts are respectively arranged below the stable main beam. One ends of the multiple stable lifting parts are connected to the stable main beam through a number of second lower lifting lugs, and the other ends of the multiple stable lifting parts are connected to one side of the other end on the support structure.

[0011] In some feasible solutions, the flipping and lifting part includes:

[0012] A lifting buckle, the lifting buckle is in a U-shaped opening shape, the two sides of the U-shaped opening of the lifting buckle are sleeved on the two sides of the first lower lifting lug, and the lifting buckle is connected to the first lower lifting lug.

[0013] A pulley block, one end of the pulley block is arranged below the lifting buckle, and one end of the pulley block is swing-connected at a position away from the U-shaped opening of the lifting buckle.

[0014] A first sling clamp, the first sling clamp is sleeved on the other end of the pulley block, and the first sling clamp swings back and forth on the pulley block.

[0015] In some feasible solutions, the pulley block includes:

[0016] A connecting buckle, the connecting buckle is sleeved on the lifting buckle;

[0017] Two support plates, the two support plates are symmetrically arranged, one ends of the two support plates are arranged on both sides of the connecting buckle, and the connecting buckle is rotationally connected between the two support plates.

[0018] A pulley, the pulley is arranged between the two support plates, the pulley is located at the other ends of the two support plates, the pulley is rotationally connected at the other ends of the two support plates, and the sling part of the first sling clamp is sleeved outside the pulley.

[0019] In some feasible solutions, the stable lifting part includes:

[0020] A second sling clamp, one end of the second sling clamp is sleeved and connected to the second lower lifting lug, and the other end of the second sling clamp is connected to one side edge of the other end on the support structure.

[0021] In some feasible solutions, the flipping main beam and the stable main beam are I-shaped steel structures.

[0022] In some feasible solutions, the hoisting height of the first crane is higher than that of the second crane.

[0023] In some feasible solutions, the first crane is a tower crane; the second crane is a crawler crane.

[0024] The beneficial effects of the present utility model are as follows:

[0025] In the present utility model, the first crane uses the flipping main beam and the flipping hoisting part to hoist upward at one end of the support structure, and the second crane uses the stabilizing main beam and the stabilizing hoisting part to hoist at the other end of the support structure with the height unchanged. At this time, under the hoisting of the first crane, the support structure slowly changes from lying flat to standing at a right angle, completing the flipping and erecting work of the support structure. That is, it effectively realizes the purpose of being self-adjustable and applicable to the flipping of the support structure. Description of the Drawings

[0026] Figure 1 Schematic diagram of the flipping main beam structure in a combined hoisting tool for safely flipping a large support structure provided in an embodiment of the present utility model;

[0027] Figure 2 Schematic diagram of the stabilizing main beam structure in a combined hoisting tool for safely flipping a large support structure provided in an embodiment of the present utility model;

[0028] Figure 3 Exploded view of the flipping main beam structure in a combined hoisting tool for safely flipping a large support structure provided in an embodiment of the present utility model;

[0029] Figure 4 Exploded view of the flipping hoisting part structure in a combined hoisting tool for safely flipping a large support structure provided in an embodiment of the present utility model.

[0030] The markings in the figure are shown as follows:

[0031] 1. Flipping main beam; 11. First reinforcing plate; 12. First upper lifting ear; 13. First lower lifting ear;

[0032] 2. Flipping hoisting part; 21. Hoisting buckle; 211. Connecting bolt; 212. Locking nut; 22. Pulley block; 221. Connecting buckle; 222. Pulley; 223. Support plate; 23. First sling clamp;

[0033] 3. Stabilizing main beam; 31. Second reinforcing plate; 32. Second upper lifting ear; 33. Second lower lifting ear; 34. Second sling clamp. Detailed Embodiments

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0036] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0038] Embodiment

[0039] Refer to Figures 1 to 4, in order to achieve the purpose of being able to self-adjust and be applicable to the turnover of the support structure, the present utility model provides a combined lifting tool for the safe turnover of a large support structure. The combined lifting tool is respectively connected to two cranes, that is, the combined lifting tool cooperates with the two cranes to turn the support structure over and install it vertically. Specifically, the combined lifting tool includes: a turnover main beam 1, a stable main beam 3, a plurality of turnover lifting parts 2 and a plurality of stable lifting parts. Two first upper lifting lugs 12 are symmetrically arranged at the top end of the turnover main beam 1. The two first upper lifting lugs 12 at the top end of the turnover main beam 1 can be respectively connected to the hooks of the first crane through slings. A plurality of first lower lifting lugs 13 are arranged at the bottom end of the turnover main beam 1. The plurality of first lower lifting lugs 13 are arranged in parallel on the turnover main beam 1. One ends of the plurality of turnover lifting parts 2 are respectively arranged below the turnover main beam 1. The plurality of turnover lifting parts 2 can be respectively connected to the turnover main beam 1 through the plurality of first lower lifting lugs 13. Two connection positions (not marked in the figure) are arranged at the other ends of the plurality of turnover lifting parts 2. The plurality of turnover lifting parts 2 are respectively connected to both sides of one end of the support structure through the connection positions. Two second upper lifting lugs 32 are symmetrically arranged at the top end of the stable main beam 3. The two second upper lifting lugs 32 at the top end of the stable main beam 3 can be respectively connected to the hooks of the second crane through slings. A plurality of second lower lifting lugs 33 are arranged at the bottom end of the stable main beam 3. The plurality of second lower lifting lugs 33 are arranged in parallel on the stable main beam 3. One ends of the plurality of stable lifting parts are respectively arranged below the stable main beam 3. The plurality of stable lifting parts can be respectively connected to the stable main beam 3 through the plurality of second lower lifting lugs 33. The other ends of the plurality of stable lifting parts are connected to one side of the other end of the support structure. In this embodiment, when it is necessary to turn over the support structure, the lifting tool on the first crane is connected to the first upper lifting lug 12 of the turnover main beam 1 through a sling. The turnover main beam 1 is connected to both sides of one end of the support structure through the two connection positions on the turnover lifting part 2, so as to realize that the first crane is connected to one end of the support structure through the turnover main beam 1. Then, the lifting tool on the second crane is connected to the second upper lifting lug 32 of the stable main beam 3 through a sling. The stable main beam 3 is connected to one side of the other end of the support structure through the stable lifting part, so as to realize that the second crane is connected to the other end of the support structure through the stable main beam 3, and complete the connection of the first crane and the second crane to the lying support structure. Then, the first crane uses the turnover main beam 1 and the turnover lifting part 2 to lift upward at one end of the support structure, and the second crane uses the stable main beam 3 and the stable lifting part to keep the lifting height unchanged at the other end of the support structure. At this time, under the lifting of the first crane, the support structure slowly changes from lying flat to standing at a right angle, and the turnover and upright work of the support structure is completed. That is, the purpose of being able to self-adjust and be applicable to the turnover of the support structure is effectively achieved.

[0040] In this embodiment, for the convenience of describing the flipping and hoisting part 2, one flipping and hoisting part 2 is taken as an example for illustration. The flipping and hoisting part 2 includes: a hanging buckle 21, a pulley block 22, and a first sling clamp 23. The hanging buckle 21 is in a U-shaped opening shape, and the two sides of the U-shaped opening of the hanging buckle 21 are sleeved on both sides of the first lower lifting lug 13. The hanging buckle 21 can be connected to the first lower lifting lug 13 through a connecting bolt 211 and a locking nut 212. That is, the connecting bolt 211 is sequentially inserted through the hanging buckle 21 and the first lower lifting lug 13, and then the locking nut 212 is threadedly connected to the other end of the connecting bolt 211 to complete the locking connection of the hanging buckle 21 and the first lower lifting lug 13 by using the connecting bolt 211 and the locking nut 212. One end of the pulley block 22 is arranged below the hanging buckle 21, and one end of the pulley block 22 is swing-connected at a position away from the U-shaped opening of the hanging buckle 21, that is, the pulley swings along the U-shaped ring of the hanging buckle 21. The first sling clamp 23 is sleeved on the other end of the pulley block 22, and the first sling clamp 23 swings back and forth on the pulley block 22 to meet the hoisting requirements of the support structure at different flipping angles. Specifically, the pulley block 22 includes: two support plates 223, a connecting buckle 221, and a pulley 22. The connecting buckle 221 is sleeved on the hanging buckle 21. The two support plates 223 are symmetrically arranged, and one end of the two support plates 223 is arranged on both sides of the connecting buckle 221. The connecting buckle 221 is rotationally connected between the two support plates 223. The pulley 22 is arranged between the two support plates 223. The pulley 22 is located at the other end of the two support plates 223, and the pulley 22 is rotationally connected to the other end of the two support plates 223. The sling part of the first sling clamp 23 is sleeved outside the pulley 22 to enable the first sling clamp 23 to meet the hoisting requirements of the support structure in different flipping states.

[0041] Referring to Figure 1 , for the convenience of describing the stable hoisting part, one stable hoisting part is taken as an example for illustration. The stable hoisting part includes: a second sling clamp 34. One end of the second sling clamp 34 is sleeved and connected to the second lower lifting lug 33, and the other end of the second sling clamp 34 is connected to one side of the other end of the support structure, so as to enable the second hoist to stabilize the hoisting height of the other end of the support structure by using the stable hoisting part to meet the flipping requirements of the flipping main beam 1.

[0042] In this embodiment, to ensure the stability of the hoisting of the flipping main beam 1 and the stable main beam 3, the flipping main beam 1 and the stable main beam 3 are of I-shaped steel structures. The flipping main beam 1 is symmetrically provided with first reinforcing plates 11 on both sides of two first upper lifting lugs 12 and two first lower lifting lugs 13. Similarly, the stable main beam 3 is symmetrically provided with second reinforcing plates 31 on both sides of two second upper lifting lugs 32 and two second lower lifting lugs 33.

[0043] In this embodiment, in order to ensure that the support structure can be turned over by using the turning main beam 1 and the stabilizing main beam 3, the hoisting height of the first crane is higher than that of the second crane. Preferably, the first crane is a tower crane; the second crane is a crawler crane.

[0044] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A combined hoist suitable for safe turning over of a large support structure, comprising a first hoist and a second hoist, characterized in that: include: An inverted main beam, wherein two first upper hanging ears are symmetrically arranged at the top of the inverted main beam, the two first upper hanging ears at the top of the inverted main beam are connected to the hook of the first crane, and a plurality of first lower hanging ears are arranged at the bottom end of the inverted main beam, and the plurality of first lower hanging ears are arranged parallel to each other on the inverted main beam; A plurality of flip hoisting parts, one end of each of the flip hoisting parts is respectively arranged below the flip main beam, one end of each of the flip hoisting parts is connected to the flip main beam through a plurality of first lower lifting ears, and the other ends of each of the flip hoisting parts are respectively provided with two connection positions, and each of the flip hoisting parts is connected to both sides of one end of the support structure through the two connection positions; A stabilizing main cable, wherein two second upper hanging ears are symmetrically arranged at the top of the stabilizing main beam, the two second upper hanging ears at the top of the stabilizing main beam are connected to the hook of the second crane, and a plurality of second lower hanging ears are arranged at the bottom end of the stabilizing main beam, and the plurality of second lower hanging ears are arranged parallel to each other on the stabilizing main beam; Multiple stable lifting parts, one end of each of the multiple stable lifting parts is respectively arranged below the stable main beam, one end of each of the multiple stable lifting parts is connected to the stable main beam through multiple second lower lifting ears, and the other end of each of the multiple stable lifting parts is connected to one side of the other end of the support structure.

2. A combined sling suitable for safe turning over of a large support structure according to claim 1, characterized in that: The flip hoisting part comprises: A hanging buckle, wherein the hanging buckle is in a U-shaped opening, the U-shaped opening of the hanging buckle is sleeved on two sides of the first lower hanging ear, and the hanging buckle is connected to the first lower hanging ear; A pulley block, one end of which is disposed below the hook, and one end of which is swung and connected to the hook at a position away from the U-shaped opening; A first suspension rope clamp is sleeved on the other end of the pulley block, and the first suspension rope clamp swings back and forth on the pulley block.

3. A combined sling suitable for safe turning over of a large support structure according to claim 2, characterized in that: The pulley block comprises: A connecting buckle, wherein the connecting buckle is sleeved on the hanging buckle; Two support plates, the two support plates are symmetrically arranged, one end of the two support plates is arranged on both sides of the connecting buckle, and the connecting buckle is rotatably connected between the two support plates; A pulley is arranged between the two support plates, the pulley is located at the other end of the two support plates, the pulley is rotatably connected to the other end of the two support plates, and the rope part of the first rope clamp is sleeved on the outside of the pulley.

4. A combined sling suitable for safe turning over of a large support structure according to claim 1, characterized in that: The stable hoisting part comprises: A second hanging rope clamp, one end of the second hanging rope clamp is connected to the second lower hanging ear, and the other end of the second hanging rope clamp is connected to a side edge of the other end of the support structure.

5. The combined lifting device for safe turning over of a large support structure according to claim 1, characterized in that: The tilting main beam and the stabilizing main beam are I-beam structures.

6. A combined sling suitable for safe turning over of a large support structure according to claim 1, characterized in that: The hoisting height of the first crane is higher than the hoisting height of the second crane.

7. A combined sling suitable for safe turning over of a large support structure according to claim 6, characterized in that: The first crane is a tower crane; the second crane is a crawler crane.

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