Segmented hoisting equipment
By designing a segmented lifting equipment using inverted V-shaped rigging and slides, the problems of center of gravity offset, insufficient structural strength and uneven tensile distribution in traditional segmented lifting equipment are solved, and higher safety, stability and efficiency are achieved.
Patent Information
- Application Number
- CN202421816989.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-30
AI Technical Summary
In actual operation, traditional segmented lifting equipment often faces problems such as center of gravity shift, insufficient structural strength and uneven distribution of wire rope tension, which affects the safety and efficiency of lifting.
A segmented lifting equipment is designed, and two sets of sling components are arranged on the two hooks of the crane respectively. Each set of sling components includes a first rope, a first connecting piece, a second hanging rope and a second connecting piece. Through the inverted V-shaped rigging structure and the design of the slider, the force balance at both ends is achieved.
By using the segmented structure design connecting the first rigging and the second rigging, the forces at both ends of the same rigging rope in the second rigging are balanced, avoiding the problems of center of gravity shift of the lifted part and uneven distribution of the rope tension during the lifting process, and improving the safety, stability and efficiency of the lifting.
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Figure CN222947932U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hoisting, in particular to a segmented hoisting device. Background Art
[0002] With the rapid development of my country's marine engineering technology and the continuous enhancement of lifting technology, the large-section construction mode has been widely used in large-scale marine engineering projects such as offshore wind power conversion platforms. In actual operation, traditional segmented lifting often faces problems such as center of gravity offset, insufficient structural strength and uneven distribution of wire rope tension, which affects the safety and efficiency of lifting. Utility Model Content
[0003] The utility model aims at the technical problems existing in the prior art and provides a segmented lifting device to solve the problems such as excessive load on some lifting ropes caused by deviation of the actual center of gravity position, so as to ensure the safety and stability during the lifting process.
[0004] The utility model solves the above technical problems with the following technical solutions: a segmented lifting device, comprising two sets of sling assemblies, which are respectively arranged on two hooks of a crane;
[0005] The sling assembly includes a first sling rope, a first connecting member, a second sling rope, and a second connecting member. The two ends of the first sling rope are respectively fixedly connected to two of the first connecting members, and the first sling rope and the first connecting member constitute an inverted V-shaped first rigging; each of the first connecting members is provided with a second sling rope, and the two ends of the second sling rope are fixedly connected to a second connecting member, so that the second sling rope and the second connecting member constitute an inverted V-shaped second rigging.
[0006] As a further technical solution, the first connecting member includes a first shackle body, a sliding member, and a first fixing member, the sliding member is connected to the first shackle body through the first fixing member, and the sliding member is sleeved on the first fixing member and rotates along the circumferential direction thereof;
[0007] The end of the first lifting rope is fixedly connected to the first shackle, and the second lifting rope is slidably connected to the sliding member, so that the tension at both ends of the second lifting rope is balanced by sliding on the sliding member.
[0008] As a further technical solution, the second connecting member includes a second shackle body and a second fixing member detachably connected thereto, and the end of the second lifting rope is fixed to the top of the second shackle body and connected to the lifting ear on the hoisted member through the second fixing member.
[0009] As a further technical solution, the first fixing member includes a first transverse bolt and two nuts locked and adapted with two ends of the first transverse bolt, the first transverse bolt simultaneously passes through a through hole on the first shackle body and is sleeved with the sliding member, and the first transverse bolt is locked to the first shackle body by the two nuts;
[0010] Wherein, the first shackle body, the first cross bolt and the sliding member share a longitudinal center line.
[0011] As a further technical solution, the sliding member is a pulley.
[0012] As a further technical solution, the second fixing member includes a second transverse bolt and a locking nut adapted to be connected to the second transverse bolt. The second transverse bolt simultaneously passes through the through hole on the second shackle body and the lifting ear on the hoisted member, and is locked and fixed by the locking nut.
[0013] As a further technical solution, the first suspension rope and the second suspension rope are both made of steel wire rope.
[0014] As a further technical solution, the fixed ends of one set of sling assemblies are detachably connected to the edge of the top of the hoisted component, and the fixed ends of another set of sling assemblies are detachably connected to the edge of the bottom of the hoisted component.
[0015] The beneficial effects of the utility model are as follows: the segmented structural design connected by the first rigging and the second rigging makes the forces at both ends of the same lifting rope in the second rigging balanced, thus avoiding the problems of gravity center shifting during the lifting of the hoisted parts, uneven tension distribution of the lifting ropes, and uneven structural strength, thereby improving the safety, stability, and effectiveness of the lifting. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a structural schematic diagram of a segmented lifting device of the utility model;
[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;
[0018] Figure 3 for Figure 2 A schematic diagram of a structure in which no sliding member is provided;
[0019] Figure 4 for Figure 1 The enlarged structural diagram of the middle B part;
[0020] Figure 5 for Figure 1 Schematic diagram of the usage scenario structure;
[0021] Figure 6 This is a schematic diagram of the structure of a hoisted component, in which no lifting lug is provided;
[0022] Figure 7 for Figure 5 Schematic diagram of the structure from above with the lifting lugs installed in the structure;
[0023] Figure 8 for Figure 6 A side view schematic diagram of the structure;
[0024] Fig. 9 It is a schematic diagram of a part of the structure where the hook is connected to the first lifting rope;
[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0026] Hook 1, hoisted part 2, top deck 21, bottom deck 22, lifting lug 23, center of gravity 24;
[0027] First hanging rope 3;
[0028] A first connecting member 4, a first shackle body 41, a sliding member 42, a first fixing member 43, a first cross bolt 431, and a nut 432;
[0029] Second hanging rope 5;
[0030] The second connecting member 6 , the second shackle body 61 , the second fixing member 62 , the second cross bolt 621 , and the locking nut 622 . DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.
[0032] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.
[0033] In the description of the present application, the term "for example" is used to mean "used as an example, illustration or description". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. In order to enable any technician in the field to implement and use the utility model, the following description is given. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the utility model can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details that make the description of the utility model obscure. Therefore, the utility model is not intended to be limited to the embodiments shown, but is consistent with the widest range of principles and features disclosed in the present application.
[0034] This embodiment takes an offshore wind power conversion platform as an example and performs segmented hoisting;
[0035] In order to avoid the defects of the center of gravity 24 of the hoisted part 2 being offset and the uneven distribution of the tension of the hoisting rope, a segmented hoisting device is provided. Figure 1 , Figure 5-Figure 9 , including two sets of sling assemblies, which are respectively arranged on the two hooks 1 of the crane; during the implementation process, the fixed end of one set of sling assemblies is disassembled and connected to the edge of the top of the hoisted part 2, and the fixed end of the other set of sling assemblies is disassembled and connected to the edge of the bottom of the hoisted part 2. Figure 1 , Figure 2 As shown, eight lifting ears 23 (the first group) are arranged on the edge bulkhead of the top deck 21 of the hoisted component, and eight lifting ears 23 (the first group) are arranged on the edge bulkhead of the bottom deck 22. The two groups of lifting ears 23 are detachably connected with the two groups of sling assemblies respectively. The number of lifting ears 23 in each group is designed according to the size and weight of the hoisted component. For example, if the total weight of the sections exceeds 3,000 tons, two groups of 16 lifting ears 23 are used.
[0036] See also Figure 1-Figure 4The sling assembly includes a first sling rope 3, a first connecting piece 4, a second sling rope 5, and a second connecting piece 6. The two ends of the first sling rope 3 are respectively fixedly connected to two of the first connecting pieces 4, and the first sling rope 3 and the first connecting piece 4 form an inverted V-shaped first rigging. In order to balance the forces at the two ends of the first sling rope 3, when the forces at the two ends of the first sling rope 3 are different during use, the first sling rope 3 can slide along the hook 1 under the action of tension, so as to finally balance the tension forces at the two ends of the first sling rope 3; each of the first connecting pieces 4 is provided with a second sling rope 5, and the two ends of the second sling rope 5 are fixedly connected to a second connecting piece 6, so that the second sling rope 5, the The second connecting member 6 constitutes an inverted V-shaped second rigging. Similarly, in order to balance the forces on both ends of the second lifting rope 5, during use, the second lifting rope 5 can slide along the first connecting member 4 under the action of tension when the forces on both sides are different, so as to finally balance the tension forces on both sides of the second lifting rope 5, that is, one first lifting rope 3 connects two first connecting members 4, and one second lifting rope 5 connects two second connecting members 6. Finally, one first lifting rope 3 can be connected to four lifting points on the suspended component 2 (that is, the positions where the lifting ears on the suspended component 2 are set), and the four lifting points are located at four adjacent lifting points on the same side of the suspended component 2, so as to facilitate connection and the lifting ropes are not affected by each other. (See Figure 7 , Figure 8 )
[0037] In specific applications, the first lifting rope 3 and the second lifting rope 5 can be made of cotton rope, hemp rope, synthetic fiber rope, steel wire rope, etc. The specific material is determined according to the usage scenario. For example, when the weight and volume of the hoisted component 2 are both large, it is preferred that the first lifting rope 3 and the second lifting rope 5 are made of steel wire rope to increase the force.
[0038] In the specific implementation process, see Figure 1-Figure 4 The first connecting member 4 includes a first shackle body 41, a sliding member 42, and a first fixing member 43. The sliding member 42 is connected to the first shackle body 41 through the first fixing member 43. The sliding member 42 is sleeved on the first fixing member 43 and rotates along its circumferential direction. The first shackle body 41 is Ω-shaped, and the first lifting rope 3 is connected to the top of the Ω-shaped, and the sliding member 42 is fixed in the gap at the lower part thereof through the first fixing member 43, and shares a longitudinal center line, so that the first shackle body 41 is evenly stressed and its service life is extended. The end of the first lifting rope 3 is fixedly connected to the first shackle body 41, and the second lifting rope 5 is slidably connected to the sliding member 42, so that the second lifting rope 5 slides on the sliding member 42 to balance the tension at both ends of the pulling force. The sliding member 42 can be a pulley.
[0039] Further, see Figure 2The first fixing member 43 includes a first transverse bolt 431 and two nuts 432 that are locked and adapted to the two ends of the first transverse bolt 431. The first transverse bolt 431 passes through the through hole on the first shackle body 41 and is sleeved with the sliding member 42. The first transverse bolt 431 is then locked to the first shackle body 41 by the two nuts 432. In order to improve the force stability and facilitate the rotation of the sliding member 42, the first shackle body 41, the first transverse bolt 431, and the sliding member 42 share a longitudinal center line;
[0040] In the specific implementation process, see Figure 3 The second connecting member 6 includes a second shackle body 61 and a second fixing member 62 detachably connected thereto, the end of the second lifting rope 5 is fixed to the top of the second shackle body 61, and is connected to the lifting ear 23 on the hoisted member 2 through the second fixing member 62; that is, the second connecting member 6 can be detachably connected to the lifting ear 23. More specifically, the second fixing member 62 includes a second cross bolt 621, and a locking nut 622 adapted to be connected to the second cross bolt 621. The second cross bolt 621 simultaneously passes through the through hole on the second shackle body 61, the lifting ear 23 on the hoisted member 2, and is connected through The locking nut 622 is locked and fixed, that is, when working, the locking nut 622 is removed, the second cross bolt 621 is passed through the lifting ear 23 of the hoisted part 2 and then inserted into the other through hole of the second shackle body 61, and locked by the locking nut 622 to fix the lifting ear 23 on the second connecting member 6; when hoisting, according to the equal force on both sides of the same second lifting rope 5 and the weight of the hoisted part 2, the force conditions of each lifting rope can be calculated according to the geometric relationship, and then the finite element structural analysis is carried out to ensure whether the local stress at the lifting ear 23 and the stress and deformation of the overall segment meet the specification requirements.
[0041] This embodiment is achieved as follows:
[0042] First, arrange the lifting ears 23 on the edge warehouse wall of the top deck 21 and the edge warehouse wall of the bottom deck 22 of the hoisted component 2, and the lifting ears 23 in each group are arranged at equal intervals; then, the two groups of sling assemblies correspond to one group of lifting ears 23 respectively, so that one side of the second lifting rope 5 in the same group is connected to the lifting ear 23 of the corresponding group, and finally, the first lifting rope 3 is hung on the hook 1 of the lifting equipment (such as a crane), one lifting rope is hung on one hook 1, and then the lifting equipment is turned on to stretch the first lifting rope 3 upward. In this process, the second lifting rope 5 slides along the sliding member 42 under the tension until the tension at both ends of each second lifting rope 5 is balanced, and finally the tension at both ends of the first lifting rope 3 is also balanced, and the hoisted component 2 can continue to be lifted upward to the destination. (See Figure 5 )
[0043] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0044] Although the preferred embodiments of the utility model have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the utility model.
[0045] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A segmented lifting device, characterized in that: It comprises two sets of sling assemblies, which are respectively arranged on two hooks (1) of a crane; The sling assembly comprises a first sling rope (3), a first connecting piece (4), a second sling rope (5), and a second connecting piece (6); the two ends of the first sling rope (3) are respectively fixedly connected to two of the first connecting pieces (4), and the first sling rope (3) and the first connecting piece (4) form an inverted V-shaped first rigging; each of the first connecting pieces (4) is provided with a second sling rope (5), and the two ends of the second sling rope (5) are fixedly connected to a second connecting piece (6), so that the second sling rope (5) and the second connecting piece (6) form an inverted V-shaped second rigging.
2. A segmented lifting device according to claim 1, characterized in that: The first connecting member (4) comprises a first shackle body (41), a sliding member (42), and a first fixing member (43); the sliding member (42) is connected to the first shackle body (41) via the first fixing member (43); the sliding member (42) is sleeved on the first fixing member (43) and rotates along the circumference thereof; The end of the first lifting rope (3) is fixedly connected to the first shackle body (41), and the second lifting rope (5) is slidably connected to the sliding member (42), so that the tension at both ends of the second lifting rope (5) is balanced by sliding on the sliding member (42).
3. The segmented lifting equipment according to claim 2, characterized in that: The second connecting member (6) comprises a second shackle body (61) and a second fixing member (62) detachably connected thereto, and the end of the second lifting rope (5) is fixed to the top of the second shackle body (61) and connected to the lifting ear (23) on the hoisted member (2) through the second fixing member (62).
4. The segmented lifting equipment according to claim 2, characterized in that: The first fixing member (43) comprises a first transverse bolt (431) and two nuts (432) locked and matched with two ends of the first transverse bolt (431); the first transverse bolt (431) passes through a through hole on the first shackle body (41) and is sleeved with the sliding member (42); and the first transverse bolt (431) is locked to the first shackle body (41) by the two nuts (432); Wherein, the first shackle body (41), the first cross bolt (431), and the sliding member (42) share a longitudinal center line.
5. The segmented lifting equipment according to claim 2, characterized in that: The sliding member (42) is a pulley.
6. The segmented lifting equipment according to claim 3, characterized in that: The second fixing member (62) comprises a second transverse bolt (621) and a locking nut (622) adapted to be connected to the second transverse bolt (621); the second transverse bolt (621) simultaneously passes through a through hole on the second shackle body (61) and a lifting ear (23) on the hoisted member (2), and is locked and fixed by the locking nut (622).
7. The segmented lifting equipment according to claim 1, characterized in that: The first suspension rope (3) and the second suspension rope (5) are both made of steel wire rope.
8. The segmented lifting equipment according to claim 1, characterized in that: The fixed ends of one set of sling assemblies are detachably connected to the edge of the top of the suspended component (2), and the fixed ends of the other set of sling assemblies are detachably connected to the edge of the bottom of the suspended component (2).