CN207844841U - A kind of great diameter and long pile cages decentralization suspender - Google Patents

Abstract

A large-diameter and super-long pile reinforcement cage lowering spreader, including a crawler crane lowering spreader and a floating crane lowering spreader; The lowering spreader of the floating crane and the lowering spreader of the crawler crane are connected by shackles; compared with the existing technology, it solves the limitation and safety problems of the traditional lowering reinforcement cage, and the operator can carry out the shackle on the platform. Operation, so as to realize the connection between the spreader under the crawler crane and the spreader under the floating crane on the platform, which improves the safety in the process of lowering the reinforcement cage. It has the advantages of convenient construction, simple operation, light movement, safe and reliable personnel construction and The advantage of lower cost has created good economic benefits.

Description

A spreader for lowering reinforcement cages of large-diameter and super-long piles

technical field

The utility model belongs to the technical field of offshore pile foundation construction, in particular to a spreader for lowering a large-diameter super-long pile reinforcement cage.

Background technique

In recent years, my country's civil engineering technology has developed rapidly, and cross-river and sea-crossing bridges have become increasingly large-span. With the increase of bridge spans, large-diameter and super-long bored piles have been widely used in bridge foundations. The corresponding steel cages The diameter and length are also developing in the direction of large diameter and super length. The reinforcement cage of large-diameter and super-long bored piles has structural characteristics such as multiple segments, self-heavy weight, multiple joints, and easy deformation. Cage installation technology is difficult to meet the growing demand for large-diameter and super-long bored pile construction.

In the current offshore construction, the traditional single lowering method has been difficult to meet the installation of large-diameter and super-long bored pile reinforcement cages. For example: using floating cranes to lower the reinforcement cages, when the sea wind and waves reach level 6 and above, there will be butt joints of the reinforcement cages Difficulties and other problems, the efficiency of decentralization is greatly reduced. If the crawler crane is used to lower the reinforcement cage, although the problem of lowering in large wind and waves is solved, as the reinforcement cage continues to be lengthened, the weight continues to increase, and it cannot be lowered when the lifting limit of the crawler crane is reached. Therefore, in the process of lowering the reinforcement cage of large-diameter and super-long piles at sea, the lowering system conversion is used to meet the demand. When the lifting limit of the crawler crane is reached, the lowering cannot be performed, and it needs to be converted to a 600t floating crane system for lowering.

At the same time, in the process of switching between the lower system of the crawler crane and the lowering system of the floating crane, due to the heavy weight of the connecting shackle, if you climb on the steel skeleton to perform the conversion, 2-3 people are required to operate, not only the construction efficiency is low, but also Therefore, it is of great significance to design a special spreader that can convert the lowering system during the lowering of the steel cage.

Utility model content

The utility model aims at overcoming the defects in the above-mentioned prior art, and provides a safe, reliable, easy-to-operate, and convenient-to-use spreader for lowering the reinforcement cage of large-diameter super-long piles.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a large-diameter super-long pile reinforcement cage lowering spreader, including crawler crawler lowering spreader and floating crane lowering spreader; Above the lowering spreader, the lowering spreader of the crawler crane is connected with the steel cage, and the lowering spreader of the floating crane is connected with the lowering spreader of the crawler crane through a shackle.

As a preferred solution of the present invention, the crawler crane lowering sling includes a crawler hook, a first steel wire rope and a reinforcement ring, the reinforcement ring is located on the reinforcement cage, and the first steel wire rope is connected to the crawler crane hook and the reinforcement ring.

As a preferred solution of the present invention, a second steel wire rope is connected to the reinforcement ring, and the reinforcement ring and the second steel wire rope are connected through a first lug.

As a preferred solution of the present utility model, the second steel wire rope is connected with the crawler crane lowering sling, and the length of the second steel wire rope is greater than the length of the single-section reinforcement cage.

As a preferred solution of the present invention, the floating crane lowering sling includes a floating crane hook, a frame and a third steel wire rope, and the third steel wire rope is connected to the second steel wire rope of the crawler crane lowering sling through a shackle.

As a preferred solution of the present utility model, a fourth wire rope is provided between the floating crane hook and the frame, and the frame is always in a horizontal state under the action of the fourth wire rope.

As a preferred solution of the present invention, the frame is provided with a second lifting lug, one end of the second lifting lug is connected with the third steel wire rope, and the other end of the second lifting lug is connected with the fourth steel wire rope.

As a preferred solution of the present invention, the size of the frame matches the size of the reinforcement cage.

As a preferred solution of the present invention, the lowering of the crawler crane and the lowering of the floating crane are provided with reinforcement cage suspension rings.

As a preferred solution of the present invention, the suspension ring of the reinforcement cage includes a circular ring and a moving part matching the size of the reinforcement cage, and the moving part is slidably connected to the circular ring.

The beneficial effect of the utility model is: compared with the prior art, it solves the limitation and safety problems of the traditional lowering of the reinforcement cage, and the operator can operate the shackle on the platform, so as to realize the lifting gear under the crawler crane on the platform. The connection between the floating crane and the lowering spreader improves the safety in the process of lowering the reinforcement cage. It has the advantages of convenient construction, simple operation, light movement, safe and reliable construction of personnel, and low cost, creating good economic benefits. .

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the crawler crane lowering the spreader;

Fig. 3 is a structural schematic diagram of the lowering spreader of the floating crane;

Fig. 4 is a structural schematic diagram of a reinforcing ring;

Fig. 5 is a closed state schematic diagram of the suspension ring of the reinforcement cage;

Fig. 6 is a schematic diagram of the open state of the suspension ring of the reinforcement cage;

Reference signs in the figure: crawler crane lowering spreader 1, floating crane lowering spreader 2, reinforcement cage 3, reinforcement cage suspension ring 4, shackle 5, crawler crane hook 1-1, first wire rope 1-2, second First lifting lug 1-3, second wire rope 1-4, reinforcement ring 1-5, floating hook 2-1, frame 2-2, third wire rope 2-3, fourth wire rope 2-4, second hoist Ear 2-5, ring 4-1, mobile part 4-2.

Detailed ways

Below in conjunction with accompanying drawing, the utility model embodiment is described in detail.

As shown in Figure 1-4, a large-diameter super-long pile reinforcement cage lowering spreader includes crawler crane lowering spreader 1 and floating crane lowering spreader 2; floating crane lowering spreader 2 is located at the crawler crane lowering spreader 1 Above, the lowering spreader 1 of the crawler crane is connected with the steel cage 3, the lowering spreader 2 of the floating crane is connected with the lowering spreader 1 of the crawler crane, and the lowering spreader 1 of the crawler crane and the lowering spreader 2 of the floating crane are equipped with a steel cage suspension ring 4.

Both the lowering spreader 1 of the crawler crane and the lowering spreader 2 of the floating crane are located on the crane. After the lowering spreader 1 of the crawler crane is used to dock the reinforcement cage 3, the reinforcement cage 3 is supported by the suspension ring 4 of the reinforcement cage, and then lowered. And when the reinforcement cage 3 is continuously lengthened and the weight is constantly increasing, it cannot be lowered when reaching the lifting limit of the lowering spreader 1 of the crawler crane. Big to the hoisting limit of reinforcement cage 3, then lower down.

The crawler crane lowering spreader 1 includes a crawler crane hook 1-1, a first steel wire rope 1-2 and a reinforcement ring 1-5, the reinforcement ring 1-5 is located on the reinforcement cage 3, and the first steel wire rope 1-2 is connected to the crawler crane hook 1-1 and the reinforcement ring 1-5, the reinforcement ring 1-5 is connected with the second steel wire rope 1-4, the reinforcement ring 1-5 is connected with the second steel wire rope 1-4 through the first lug 1-3, the second The second steel wire rope 1-4 is connected with the lowering spreader 1 of the crawler crane, and the second steel wire rope 1-4 is connected with the lowering spreader 2 of the floating crane through a shackle 5 .

Compared with the first steel wire rope 1-2, the second steel wire rope 1-4 is larger and longer, because the second steel wire rope 1-4 is used to connect the lowering sling 2 of the floating crane, the second steel wire rope 1-4 has better strength and strengthens The rings 1-5 are compatible with the reinforcement cage 3, so that the lowering of the reinforcement cage 3 is more stable under the action of the reinforcement ring 1-5 and the suspension ring 4 of the reinforcement cage during the lowering process, and under the action of the reinforcement ring 1-5 , the lower part of the reinforcement cage 3 has better verticality.

The length of the second wire rope 1-4 is greater than the distance between the reinforcing ring 1-5 and the reinforcement cage suspension ring 4, the reinforcement cage suspension ring 4 is located on the platform, and the reinforcement cage suspension ring 4 is used to limit the lowering position of the reinforcement cage 3, The length of the second steel rope 1-4 is greater than the distance between the reinforcing ring 1-5 and the suspension ring 4 of the steel cage, so that the operator can connect the second steel rope 1-4 and the third steel rope 2-3 on the platform, thereby facilitating the installation The lower spreader 1 of the crawler crane and the lower spreader 2 of the floating crane are connected and converted.

The floating crane lowering spreader 2 includes a floating crane hook 2-1, a frame 2-2 and a third steel wire rope 2-3, and the third steel wire rope 2-3 is connected with the second steel wire rope 1-4 of the crawler crane lowering spreader 1. A fourth steel wire rope 2-4 is arranged between the hanging hook 2-1 and the frame 2-2, and the frame 2-2 is always in a horizontal state under the action of the fourth steel wire rope 2-4, and a second steel wire rope 2-4 is arranged on the frame 2-2. Lifting lug 2-5, one end of the second lifting lug 2-5 is connected with the third steel wire rope 2-3, the other end of the second lifting lug 2-5 is connected with the fourth steel wire rope 2-4, and the size of the frame 2-2 is the same as The size of reinforcement cage 3 matches.

The lowering spreader 2 of the floating crane is used to connect the lowering spreader 1 of the crawler crane to increase the overall lifting limit, so that the spreader is more stable in lowering the steel cage 3, and the frame 2-2 is used to pass through the steel cage 3 , so that the lowering of the reinforcement cage 3 has better verticality.

In the process of connecting the lower spreader 1 of the crawler crane and the lower spreader 2 of the floating crane, the weight of the connecting shackle 5 is relatively large. If the connection is made by climbing onto the reinforcement cage 3, 2-3 people are required to operate, which not only improves the construction efficiency low, which increases the safety hazards in the construction process. The second wire rope 1-4 has a longer length and can be extended to the frame 2-2, so that the operator can pass the shackle 5 on the frame 2-2. Connect the second steel wire rope 1-4 and the third steel wire rope 2-3, thereby ensuring the safety of operators and improving work efficiency.

As shown in Figure 5-6, the reinforcement cage suspension ring 4 includes a ring 4-1 and a moving part 4-2 adapted to the size of the reinforcement cage 3, and the moving part 4-2 is slidably connected to the ring 4-1, Thereby reinforcement cage suspension ring 4 controls the opening and closing of reinforcement cage suspension ring 4 by the movement to mobile part 4-2, when open state, mobile part 4-2 moves outwards, and this moment reinforcement cage 3 can pass through reinforcement cage Suspension ring 4; when closed state, moving part 4-2 moves inwardly, and this moment reinforcement cage 3 offsets with moving part 4-2, makes reinforcement cage 3 can not pass reinforcement cage suspension ring 4.

In actual use, the reinforcement cage 3 is hoisted from the transport vehicle by using the lower spreader 1 of the crawler crane, and the reinforcement cage 3 is changed from horizontal to vertical through the top lifting lugs and bottom lifting points of the suspended ceiling, and the bottom lifting lugs are removed , vertically lift the reinforcement cage 3 to dock with the lower section, when the reinforcement cage 3 is continuously extended, the weight will continue to increase, and when it reaches the lifting limit of the spreader 1 below the crawler crane, it cannot be lowered, and the reinforcement ring 1-5 will be lifted The second steel wire rope 1-4 is put down, and the operator connects the second steel wire rope 1-4 and the third steel wire rope 2-3 through a shackle on the platform, so as to connect the lowering spreader 1 of the crawler crane and the lowering spreader 2 of the floating crane. Afterwards, the steel cage 3 is warmed and lowered.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model; Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Although this paper uses many reference signs in the figure: crawler crane lowering spreader 1, floating crane lowering spreader 2, steel cage 3, steel cage suspension ring 4, shackle 5, crawler hook 1-1, No. One steel wire rope 1-2, the first lifting lug 1-3, the second steel wire rope 1-4, the reinforcement ring 1-5, the floating hook 2-1, the frame 2-2, the third steel wire rope 2-3, the fourth steel wire rope 2-4, the second lug 2-5, the ring 4-1, the moving part 4-2 and other terms, but the possibility of using other terms is not excluded; these terms are used only for more convenient description and explanation The essence of the utility model; interpreting them as any kind of additional restrictions is against the spirit of the utility model.

Claims (10)

1. a large-diameter super-long pile reinforcement cage lowering spreader, is characterized in that, comprises crawler belt lowering spreader (1) and floating hanger lowering spreader (2); Described floating hanger lowering spreader (2) is positioned at crawler belt Above the lowering spreader (1), the lowering spreader (1) of the crawler crane is connected with the steel cage (3), and the lowering spreader (2) of the floating crane and the lowering spreader (1) of the crawler crane pass through the shackle (5 )connect. 2. A kind of large-diameter super-long pile reinforcement cage lowering spreader according to claim 1, characterized in that, said crawler crane lowering spreader (1) comprises a crawler hook (1-1), a first wire rope (1-2) and the reinforcement ring (1-5), the reinforcement ring (1-5) is located on the reinforcement cage (3), and the first steel wire rope (1-2) connects the crawler hook (1-1) and the reinforcement ring (1-5). 3. a kind of large-diameter super-long pile reinforcement cage lowering hanger according to claim 2 is characterized in that, the second steel wire rope (1-4) is connected on the described reinforcing ring (1-5), and the reinforcing ring ( 1-5) is connected with the second wire rope (1-4) through the first lug (1-3). 4. a kind of large-diameter super-long pile reinforcement cage lowering spreader according to claim 3, is characterized in that, described second wire rope (1-4) links to each other with crawler belt lowering hanger (1), and the second steel wire rope The length of (1-4) is greater than the length of single-section reinforcement cage (3). 5. A kind of large-diameter super-long pile reinforcement cage lowering hanger according to claim 4, is characterized in that, described floating crane lowering hanger (1) comprises floating crane hook (2-1), frame (2 -2) and the third wire rope (2-3), connected by shackle (5) between the third wire rope (2-3) and the second wire rope (1-4) of the sling (1) under the crawler crane. 6. A large-diameter super-long pile reinforcement cage lowering hanger according to claim 5, characterized in that, a fourth suspension hook (2-1) and the frame (2-2) is provided Steel wire rope (2-4), frame (2-2) is in horizontal state all the time under the effect of the 4th steel wire rope (2-4). 7. The hanger for lowering a large-diameter super-long pile reinforcement cage according to claim 6, characterized in that, the frame (2-2) is provided with a second lug (2-5), and the second hanger One end of the ear (2-5) is connected with the third steel wire rope (2-3), and the other end of the second lifting ear (2-5) is connected with the fourth steel wire rope (2-4). 8. A large-diameter super-long pile reinforcement cage lowering spreader according to claim 7, characterized in that, the size of the frame (2-2) matches the size of the reinforcement cage (3). 9. A kind of large-diameter super-long pile reinforcement cage lowering spreader according to claim 1, characterized in that, the lowering of the crawler crane lowering spreader (1) and the floating crane lowering spreader (2) are provided with steel bars Cage suspension rings (4). 10. a kind of large-diameter super-long pile reinforcement cage lowering hanger according to claim 9, is characterized in that, described reinforcement cage suspension ring (4) comprises the circular ring ( 4-1) and the moving part (4-2), the moving part (4-2) is slidably connected on the ring (4-1).