Steel strand multi-machine lifting installation structure for flexible lifting

Abstract

The utility model relates to the technical field of steel strand installation, in particular to a steel strand multi-machine lifting installation structure for flexible lifting, which comprises a main framework and a lifting platform arranged at the top end of the main framework. One end of a steel strand is arranged on the lifter; the distribution beam is fixedly arranged below the lifter, and a hole matched with the lifter is formed in the distribution beam; the number of the lifting points is two, one lifting point is arranged on the lifter, and the other lifting point is arranged on the steel strand which is far away from the lifter and is two thirds of the length of the steel strand; wherein the other end of the steel strand penetrates through the hole of the distribution beam, the actual hoisting height of the crane is one third of the length of the steel strand higher than that of the main framework, and the hoisting height of the crane is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel strand installation, in particular to a multi-machine lifting and installation structure for steel strands used for flexible lifting. Background Art

[0002] During the construction process, steel strands are often used for lifting. The general method is to connect the object to be lifted at one end of the steel strand and the other end to the lifter at the top of the main structure. The steel strand is lifted by the lifter, and then the object to be lifted is lifted.

[0003] The existing method for installing steel strands involves placing a hoist on the main structure's lifting platform. A crane is then used to lift one end of the strand, placing the strand's bottom end above the main structure. The strand's bottom end passes through the hoist and the holes in the distribution beam. This method requires the crane to reach a height at least one strand length above the top of the main structure, placing excessive demands on the crane's height. Utility Model Content

[0004] Therefore, the utility model aims to overcome the technical problems that need to be solved in the prior art, thereby providing a multi-machine lifting and installation structure for flexible lifting steel strands.

[0005] The utility model provides a multi-machine lifting and installation structure for flexible lifting steel strands, comprising:

[0006] A main structure, wherein a lifting platform is provided at the top of the main structure;

[0007] a hoist, one end of the steel strand being arranged on the hoist;

[0008] A distribution beam is fixedly arranged below the lifter, and the distribution beam is provided with holes adapted to the lifter;

[0009] There are two hanging points, one of which is set on the hoist and the other is set on the steel strand at a distance of two-thirds of the length of the steel strand away from the hoist;

[0010] The other end of the steel strand passes through the hole of the distribution beam.

[0011] Furthermore, the lifter is a through-hole lifter, and the steel strand passes through the lifter and the holes of the distribution beam.

[0012] Furthermore, the lifting platform includes:

[0013] The lifting beam is fixedly arranged at the top end of the main structure and protrudes from the main structure.

[0014] Furthermore, the lifting platform further comprises:

[0015] The sliding beam is fixedly arranged on the top surface of the lifting beam.

[0016] Furthermore, there are two sliding beams, which are spaced apart and arranged in parallel on the lifting beam, and the steel strands pass through between the two sliding beams.

[0017] Furthermore, a stop beam is fixedly provided on the sliding beam, a jack is fixedly provided on one end of the stop beam, and the extension and retraction direction of the jack is parallel to the extension direction of the sliding beam.

[0018] Furthermore, the lifting point is lifted by a hook on a crane.

[0019] The technical solution of this utility model has the following advantages:

[0020] The utility model provides a flexible lifting steel strand multi-machine lifting and installation structure, which can use a crane to lift the steel strand at multiple lifting points. The actual lifting height of the crane is one-third higher than the main structure by the length of the steel strand, thereby reducing the lifting height of the crane.

[0021] The utility model provides a multi-machine lifting and installation structure for a flexible lifting steel strand, wherein the lifting beam can support the sliding beam.

[0022] The utility model provides a multi-machine lifting and installation structure for flexible lifting steel strands, in which a distribution beam is placed on the end side of a jack on the sliding beam. The distribution beam can be slid on the sliding beam by the jack, thereby moving the steel strands along the extension direction of the sliding beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the lifting platform structure of the utility model.

[0026] Description of reference numerals;

[0027] 1. Main structure; 2. Hoist; 3. Distribution beam; 4. Lifting beam; 5. Sliding beam; 6. Guard beam; 7. Jack; 8. Hook; 9. Steel strand. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Example

[0033] like Figures 1 to 2 A specific embodiment of a multi-machine lifting and installation structure for a flexible lifting steel strand is shown, and the multi-machine lifting and installation structure for a flexible lifting steel strand comprises:

[0034] A main structure 1, wherein a lifting platform is provided at the top of the main structure 1;

[0035] A hoist 2, one end of the steel strand 9 is arranged on the hoist 2;

[0036] A distribution beam 3 is fixedly arranged below the lifter 2, and a hole is provided on the distribution beam 3 to match the lifter 2;

[0037] There are two hanging points, one of which is set on the hoist 2, and the other is set on the steel strand 9 at a distance of two-thirds of the length of the steel strand 9 away from the hoist 2;

[0038] The other end of the steel strand 9 passes through the hole of the distribution beam 3 .

[0039] The steel strand 9 is set on the hoist 2 on the ground, and a crane can be used to lift the steel strand 9 at multiple lifting points to prevent the steel strand 9 from falling suddenly. At the same time, the actual lifting height of the crane is one-third higher than the main structure 1 by the length of the steel strand 9, which reduces the lifting height of the crane. In addition, the mass of the steel strand 9 is relatively large. In the prior art, it is not easy for the steel strand 9 to penetrate the hole of the distribution beam 3 at high altitude. However, the present application can make the steel strand 9 in the air into a wavy shape with a relatively flat end, and the operator can insert the end of the steel strand 9 through the hole.

[0040] It should be noted that for objects that need to be lifted at multiple points, such as the truss structure of an aerial corridor, multiple sets of flexible lifting steel strand multi-machine lifting installation structures of this application are set up, which are respectively set on both sides of the aerial corridor truss structure, and the aerial corridor truss structure is lifted by the steel strands 9 at different positions on both sides.

[0041] Furthermore, the lifter 2 is a through-hole lifter, and the steel strand 9 passes through the holes of the lifter 2 and the distribution beam 3. It should be noted that the holes of the distribution beam 3 should be arranged relative to the lifter 2 so that the steel strand 9 is vertically downward without bending.

[0042] Furthermore, the lifting platform includes:

[0043] The lifting beam 4 is fixedly arranged at the top position of the main structure 1 and protrudes from the main structure 1. There are multiple lifting beams 4, all of which are arranged horizontally, so that the sliding beam 5 is also arranged horizontally.

[0044] Furthermore, the lifting platform further comprises:

[0045] The sliding beam 5 is fixedly arranged on the top surface of the lifting beam 4. The lifting beam 4 can support the sliding beam 5.

[0046] Furthermore, there are two sliding beams 5 , which are spaced apart and arranged in parallel on the lifting beam 4 . The steel strand 9 passes between the two sliding beams 5 .

[0047] Furthermore, a stop beam 6 is fixedly provided on the sliding beam 5, and a jack 7 is fixedly provided at one end of the stop beam 6, and the extension and contraction direction of the jack 7 is parallel to the extension direction of the sliding beam 5. The distribution beam 3 is placed on the end side of the jack 7 on the sliding beam 5, and the distribution beam 3 can be slid on the sliding beam 5 by the jack 7, thereby moving the steel strand 9 along the extension direction of the sliding beam 5. It should be noted that after the distribution beam 3 is placed on the end side of the jack 7 on the sliding beam 5, the distribution beam 3 and the end side of the jack 7 can be welded, or a clamp for connecting with the distribution beam 3 can be provided on the jack 7, so that the distribution beam 3 and the jack 7 are fixedly connected.

[0048] Furthermore, the lifting point is hoisted by a hook 8 on a crane.

[0049] Optionally, the present application also provides a method for installing a flexible lifting steel strand by multiple machines, which is used for the above-mentioned flexible lifting steel strand multi-machine lifting installation structure, comprising the following steps:

[0050] S1. Install the lifter 2 on the distribution beam 3 on the ground, and install the steel strand 9 on the lifter 2; when the lifter 2 is a through-hole lifter, the steel strand 9 passes through the holes of the lifter 2 and the distribution beam 3.

[0051] S2. Use the hook 8 on the crane to hoist the two lifting points respectively. In this application, two hooks are used to hoist the two lifting points respectively.

[0052] S3, using a crane to move the hook, and insert the end of the steel strand 9 away from the lifter 2 into between the two sliding beams 5;

[0053] S4, when the lifting point on the hoist 2 approaches the sliding beam 5, the hook is moved by the crane to separate the hook 8 from the steel strand 9;

[0054] S5 , moving the hook by the crane to place the distribution beam 3 on the sliding beam 5 at a position opposite to the jack 7 , and connecting the jack 7 and the distribution beam 3 .

[0055] Furthermore, in step S3 , the steel strand 9 is lifted to above the sliding beam 5 by a hook, and one end of the steel strand 9 is inserted between the two sliding beams 5 .

[0056] Furthermore, in step S5 , the jack 7 and the distribution beam 3 are connected by welding. After the distribution beam 3 and the jack 7 are fixedly connected, the steel strand 9 can be lifted by the lifter 2 .

[0057] This application uses two or more cranes to hoist the steel strand 9 at three equal points according to its length and weight, adjusting the vertically excessive flexible steel strand 9 into a horizontal wave posture at high altitude. The steel strand 9 is then lowered onto the hoisting platform section by section from the end of the steel strand 9 to the hoist 2. The hoist 2 and steel strand 9 are installed using a multi-crane lifting, stable positioning, and slow lowering method, providing a safe and efficient method for high-altitude installation of other flexible steel strands 9 and steel cables.

[0058] Based on the characteristics that the flexible steel strand 9 is long and needs to be assembled on the ground, and considering that the steel strand 9 is a flexible material, this application proposes an installation method of lifting with multiple machines and slowly lowering it, ensuring that the steel strand 9 will not suddenly fall during the installation process and cause danger.

[0059] In the existing technical solution, a crane lifts up all the steel strands and lowers them. The lifting height of this method is generally as high as more than 80 meters, and there is no tower crane of the corresponding height on site. If a car crane or crawler crane is used, a thousand-ton-class equipment is required. First, the cost is unrealistic, and second, the basement ceiling on site cannot support such a large crane. If the steel strand is first assembled together with the hoist and the distribution beam, and then the hoist is hoisted onto the roof, the steel strand is also coiled onto the roof, and then the lower end of the steel strand is passed through the hole, and then the hoist is lifted, and the steel strand is allowed to slide freely downward. This method cannot control the speed at which the steel strand falls, and is therefore extremely dangerous. The present application can prevent the steel strand from falling, and the crane lifts the steel strand through the hole and slowly slides downward.

[0060] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A multi-machine lifting and installation structure for flexible lifting steel strands, characterized in that: include: A main structure (1), wherein a support assembly is provided at the top of the main structure (1); A lifter (2), one end of the steel strand (9) being arranged on the lifter (2); A distribution beam (3) is fixedly arranged below the lifter (2), and a hole adapted to the lifter (2) is provided on the distribution beam (3); There are two hanging points, one of which is set on the hoist (2), and the other is set on the steel strand (9) at a distance of two-thirds of the length of the steel strand (9) away from the hoist (2); The other end of the steel strand (9) passes through a hole in the distribution beam (3).

2. The flexible lifting steel strand multi-machine lifting installation structure according to claim 1 is characterized in that: The lifter (2) is a through-hole lifter, and the steel strand (9) passes through the holes of the lifter (2) and the distribution beam (3).

3. The flexible lifting steel strand multi-machine lifting installation structure according to claim 1 is characterized in that: The support assembly comprises: The lifting beam (4) is fixedly arranged at the top end of the main structure (1) and protrudes from the main structure (1).

4. The flexible lifting steel strand multi-machine lifting installation structure according to claim 3 is characterized in that: The support assembly further comprises: A sliding beam (5) is fixedly arranged on the top surface of the lifting beam (4).

5. The multi-machine lifting and installation structure for flexible lifting steel strands according to claim 4 is characterized in that: There are two sliding beams (5), which are spaced apart and arranged in parallel on the lifting beam (4), and the steel strand (9) passes between the two sliding beams (5).

6. The flexible lifting steel strand multi-machine lifting installation structure according to claim 4 is characterized in that: A stop beam (6) is fixedly provided on the sliding beam (5), a jack (7) is fixedly provided on one end of the stop beam (6), and the telescopic direction of the jack (7) is parallel to the extension direction of the sliding beam (5).

7. The multi-machine lifting and installation structure for flexible lifting steel strands according to claim 1 is characterized in that: The lifting point is hoisted by a hook (8) on a crane.

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