Expandable lifting device suitable for large-size ring forgings

By setting a center ring and expansion bracket in the lifting device and adjusting the chain position to adapt to workpieces of different sizes, the problem of multiple equipment for lifting spreaders in the prior art is solved, and flexibility and compatibility are improved, reducing production costs and time waste.

CN223133893UActive Publication Date: 2025-07-22AVIC EXCELLENCE FORGING WUXI
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421823281.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-30
Publication Date
2025-07-22
Estimated Expiration
2034-07-30

AI Technical Summary

Technical Problem

In the prior art, the lifting spreader for large-size ring forgings needs to be equipped with corresponding lifting spreaders for each size ring forging, resulting in waste of production sites and cumbersome operations, increasing costs and reducing production efficiency.

Method used

An expandable lifting device including a center ring and an expansion bracket is designed. By installing the expansion bracket evenly at intervals on the center ring, and setting chains and chains on the bracket, adjusting the chain position to adapt to workpieces of different sizes, and transporting in combination with driving.

Benefits of technology

It improves the flexibility and compatibility of the lifting device, reduces production costs, simplifies disassembly and assembly steps, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223133893U_ABST
    Figure CN223133893U_ABST
Patent Text Reader

Abstract

The utility model relates to an expandable lifting device suitable for large-size ring forgings, which comprises a central ring, a plurality of expandable supports are uniformly mounted on the outer circumferential surface of the central ring at intervals along the circumference, a chain is mounted on each expandable support in a matched manner, and a lock chain is detachably mounted on each expandable support. A lifting hook is installed at the end of each chain in a matched mode, and workpieces of different sizes can be matched by adjusting the installation positions of the chains on the corresponding expansion supports. The lifting device is connected with the output end of the travelling crane through the chain, and the lifting hooks hook workpieces at the same time, so that the workpieces are transferred and conveyed through the travelling crane. By arranging the center ring and the expansion support, the lifting device can be suitable for workpieces of various sizes, the use flexibility and compatibility are improved, and the production cost is reduced; meanwhile, the connecting frames are convenient to disassemble and assemble, waste of production time is reduced, and production efficiency is guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting tools, in particular to an expandable lifting device applicable to large-sized ring forgings. Background Art

[0002] Large-sized ring forgings refer to ring forgings with a relatively large diameter and weight processed from metal materials (such as steel, superalloy, titanium alloy, etc.) through forging processes. Such forgings usually have the advantages of dense structure, high strength, and good toughness.

[0003] In the prior art, large-sized ring forgings are usually transported by hoisting tools. However, the production lines for processing ring forgings usually need to handle ring forgings of various sizes. Therefore, corresponding hoisting tools need to be equipped for ring forgings of each size respectively, wasting production space and increasing production costs. At the same time, the hoisting tool is connected to the output end of the crane. When handling ring forgings of different sizes, the disassembly and assembly steps between the hoisting tool and the crane need to be increased, the operation is cumbersome and complex, occupying a long production time, and reducing production efficiency. Summary of the Utility Model

[0004] The applicant of the present utility model aims at the above-mentioned disadvantages in the existing production technology, and provides an expandable lifting device applicable to large-sized ring forgings. By setting a central ring and expansion brackets, the lifting device can be applicable to workpieces of various sizes, improving the flexibility and compatibility of use and reducing production costs. At the same time, the connection brackets are convenient to disassemble and assemble, reducing the waste of production time and ensuring production efficiency.

[0005] The technical solution adopted by the present utility model is as follows:

[0006] An expandable lifting device applicable to large-sized ring forgings includes a central ring. A plurality of expansion brackets are evenly installed on the outer circumferential surface of the central ring at intervals along the circumference. A chain is cooperatively installed on a single expansion bracket, and a locking chain is detachably installed on a single expansion bracket. The end of a single locking chain is cooperatively installed with a hook. By adjusting the installation position of the locking chain on the corresponding expansion bracket, workpieces of different sizes can be matched.

[0007] The lifting device is connected to the output end of the crane through the chain, and the hook simultaneously hooks the workpiece, so as to transport the workpiece through the crane.

[0008] As a further improvement of the above technical solution:

[0009] The structure of the central ring is as follows: It includes a circular ring body. On the outer circumferential surface of the circular ring body, several first connecting plates are evenly arranged at intervals along the circumference. The first connecting plates are used for installing expansion brackets and are in one-to-one correspondence with the expansion brackets. On the end face of a single first connecting plate, several connecting holes are provided, and the first connecting plate is cooperatively installed with the corresponding expansion bracket through the connecting holes.

[0010] The structure of a single expansion bracket is as follows: It includes several connecting frames extending radially along the central ring, and adjacent two connecting frames are cooperatively connected through a second connecting plate;

[0011] On the end face of a single connecting frame, a first mounting hole group, a second mounting hole group, a third mounting hole group, and a fourth mounting hole group are provided.

[0012] For a single connecting frame, the first mounting hole group includes at least four first mounting holes, and the connecting frame is cooperatively connected with the central ring through the first mounting holes.

[0013] For a single connecting frame, the second mounting hole group includes at least one second mounting hole, and the connecting frame is cooperatively connected with the corresponding chain through the second mounting hole.

[0014] For a single connecting frame, the third mounting hole group includes at least three third mounting holes, and the connecting frame is cooperatively connected with the corresponding chain lock through the third mounting holes.

[0015] For a single connecting frame, the fourth mounting hole group includes at least two fourth mounting holes, and the connecting frame is cooperatively connected with the second connecting plate through the fourth mounting holes.

[0016] Several reinforcing ribs are provided on a single connecting frame.

[0017] At least one reinforcing plate is cooperatively installed between adjacent two expansion brackets.

[0018] A single chain lock is detachably installed with the corresponding expansion bracket through a connecting pin.

[0019] The beneficial effects of the present utility model are as follows:

[0020] The structure of the present utility model is compact and reasonable, and the operation is convenient. By setting the central ring and the expansion brackets, the lifting device can be applicable to workpieces of various sizes, improving the use flexibility and compatibility, and reducing the production cost; meanwhile, the connecting frames are convenient to disassemble and assemble, reducing the waste of production time and ensuring the production efficiency.

[0021] The present utility model also has the following advantages:

[0022] (1) In the present utility model, by evenly arranging the first connecting plate along the circumference of the circular ring body, it can ensure that the subsequent expansion brackets are evenly distributed along the circumference, guarantee the uniform force during the working process of the lifting device, and improve its working stability.

[0023] (2) In the present utility model, by arranging a plurality of connecting frames, each connecting frame can be used to cooperate with the chain for connection, so that the lifting device can be adapted to workpieces of different sizes.

[0024] (3) In the present utility model, by arranging a plurality of third mounting holes, the mounting position of the chain on the connecting frame can be adjusted, thereby further improving the flexibility and compatibility of the lifting device in use; in addition, by setting the connecting pin, the quick disassembly and assembly between the chain and the third mounting hole are realized, further reducing the waste of production time and ensuring the production efficiency.

[0025] (4) In the present utility model, by setting the reinforcing ribs and reinforcing plates, the overall strength and rigidity of the lifting device can be improved, enabling it to withstand greater loads and stresses and enhancing its structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the present utility model.

[0027] Figure 2 is a schematic structural diagram of the central ring in the present utility model.

[0028] Figure 3 is a schematic structural diagram of the expansion bracket in the present utility model.

[0029] Figure 4 is Figure 3 an exploded view of

[0030] Figure 5 is a front view of a single connecting frame in the present utility model.

[0031] Figure 6 is a schematic diagram of the present utility model in the working state.

[0032] Wherein: 1, central ring; 2, expansion bracket; 3, workpiece; 4, chain; 5, hook; 6, connecting pin; 7, reinforcing plate;

[0033] 101, circular ring body; 102, first connecting plate; 103, connecting hole;

[0034] 201, connecting frame; 202, second connecting plate; 203, first mounting hole group; 204, second mounting hole group; 205, third mounting hole group; 206, fourth mounting hole group; 207, reinforcing rib. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The following will describe the specific implementation manners of the present utility model in conjunction with the accompanying drawings.

[0036] The structure and function of the present utility model are as follows:

[0037] As Figures 1-6 shown, a scalable lifting device applicable to large-sized ring forgings includes a central ring 1. A plurality of expansion brackets 2 are evenly spaced along the circumferential direction on the outer circumferential surface of the central ring 1. A chain is cooperatively installed on a single expansion bracket 2, and a locking chain 4 is detachably installed on a single expansion bracket 2. The end of a single locking chain 4 is cooperatively installed with a hook 5. By adjusting the installation position of the locking chain 4 on the corresponding expansion bracket 2, workpieces 3 of different sizes can be matched; the lifting device is connected to the output end of a traveling crane through a chain, and the hook 5 hooks the workpiece 3 at the same time, so as to transfer and transport the workpiece 3 through the traveling crane. By providing the central ring 1 and the expansion brackets 2, the lifting device can be applicable to workpieces 3 of various sizes, improving its flexibility and compatibility in use and reducing production costs.

[0038] As Figure 2 shown, the structure of the central ring 1 is as follows: It includes a circular ring body 101. A plurality of first connecting plates 102 are evenly spaced along the circumferential direction on the outer circumferential surface of the circular ring body 101. The first connecting plates 102 are used for installing the expansion brackets 2 and are in one-to-one correspondence with the expansion brackets 2. A plurality of connecting holes 103 are opened on the end surface of a single first connecting plate 102, and the first connecting plate 102 is cooperatively installed with the corresponding expansion bracket 2 through the connecting holes 103. The central ring 1 serves as an installation carrier for the expansion brackets 2, and it is cooperatively installed with the corresponding expansion brackets 2 through the first connecting plates 102; the first connecting plates 102 are evenly distributed along the circumference of the circular ring body 101, which can ensure that the subsequent expansion brackets 2 are evenly distributed along the circumference, ensure uniform force during the working process of the lifting device, and improve its working stability.

[0039] In the present utility model, four connecting holes 103 are provided on a single first connecting plate 102, and the connecting holes 103 correspond to the first installation holes.

[0040] The structure of a single expansion bracket 2 is as follows: it includes several connecting brackets 201 arranged radially along the central ring 1, and adjacent two connecting brackets 201 are cooperatively connected through a second connecting plate 202; on the end face of a single connecting bracket 201, a first mounting hole group 203, a second mounting hole group 204, a third mounting hole group 205, and a fourth mounting hole group 206 are provided. At the same time, the connection between the connecting brackets 201 is convenient for disassembly and assembly, reducing the waste of production time and ensuring production efficiency. A single expansion bracket 2 includes at least two connecting brackets 201, and the two connecting brackets 201 are arranged radially along the central ring 1, so that in the lifting device, the overall expansion bracket 2 is in a radial shape; in the present utility model, by arranging a plurality of connecting brackets 201, each connecting bracket 201 can be used to cooperatively connect with the chain 4, so that the lifting device can adapt to workpieces 3 of different sizes.

[0041] For a single connecting bracket 201, the first mounting hole group 203 includes at least four first mounting holes, and the connecting bracket 201 is cooperatively connected with the central ring 1 through the first mounting holes. The first mounting hole group 203 is used to realize the connection between the corresponding connecting bracket 201 and the first connecting plate 102; in the present utility model, four first mounting holes are provided in a single group of the first mounting hole group 203, and the four first mounting holes correspond to the four connecting holes 103 one by one.

[0042] For a single connecting bracket 201, the second mounting hole group 204 includes at least one second mounting hole, and the connecting bracket 201 is cooperatively connected with the corresponding chain through the second mounting hole. The second mounting hole is arranged at the upper position of the end face of the corresponding connecting bracket 201, and it is used for cooperative installation with the chain.

[0043] For a single connecting bracket 201, the third mounting hole group 205 includes at least three third mounting holes, and the connecting bracket 201 is cooperatively connected with the corresponding chain 4 through the third mounting holes. The third mounting holes are arranged at the lower position of the end face of the corresponding connecting bracket 201, and it is used for cooperative installation with the chain 4; in addition, in the present utility model, arranging a plurality of third mounting holes can adjust the installation position of the chain 4 on the connecting bracket 201, so as to further improve the use flexibility and compatibility of the lifting device.

[0044] For a single connecting bracket 201, the fourth mounting hole group 206 includes at least two fourth mounting holes, and the connecting bracket 201 is cooperatively connected with the second connecting plate 202 through the fourth mounting holes.

[0045] The second connecting plate 202 is used to realize the quick connection between two connecting brackets 201; in this embodiment, four threaded holes are provided on the second connecting plate 202, two of which correspond to two fourth mounting holes on one connecting bracket 201, and the other two correspond to two fourth mounting holes on the other connecting bracket 201.

[0046] A plurality of reinforcing ribs 207 are provided on a single connecting frame 201. The reinforcing ribs 207 are used to increase the strength and rigidity of the connecting frame 201 so that it can withstand greater loads and stresses.

[0047] In the present utility model, the connecting frame 201 has a symmetrical structure with a hollow middle part. When the connecting frame 201 is cooperatively installed with the first connecting plate 102 and when the connecting frame 201 is cooperatively installed with the second connecting plate 202, the first connecting plate 102 and the second connecting plate 202 are both inserted into the hollow positions of the corresponding connecting frames 201, which can improve the connection strength between the connecting frame 201 and the first connecting plate 102 and between the connecting frame 201 and the second connecting plate 202, and improve the overall structural stability of the lifting device.

[0048] At least one reinforcing plate 7 is cooperatively installed between two adjacent expansion brackets 2. The reinforcing plate 7 is used to connect the connecting frames 201 in different expansion brackets 2. In the present utility model, the reinforcing plate 7 is arranged in an overall nested ring shape, which can improve the overall structural stability of the lifting device.

[0049] A single chain 4 is detachably installed with the corresponding expansion bracket 2 through a connecting pin 6. Through the connecting pin 6, the quick disassembly and assembly between the chain 4 and the third mounting hole are realized, further reducing the waste of production time and ensuring production efficiency.

[0050] The working process of the present utility model is as follows:

[0051] The lifting device is connected to the working end of the overhead crane through a chain, and the workpiece 3 is simultaneously hooked by the hook 5. The overhead crane drives the lifting device to move, thereby driving the workpiece 3 to move through the lifting device;

[0052] When it is necessary to transfer a workpiece 3 with a size quite different from that of the previous workpiece, first, the number of connecting frames 201 in the corresponding expansion brackets 2 is increased or decreased through the second connecting plate 202, and then the chain 4 is installed on the corresponding third mounting hole through the connecting pin 6 so that the lifting device matches the diameter size of the workpiece 3;

[0053] When it is necessary to transfer a workpiece 3 with a size slightly different from that of the previous workpiece, the chain 4 is adjusted to be cooperatively connected with different third mounting holes, so that the lifting device matches the diameter size of the workpiece 3.

[0054] The above description is an explanation of the present utility model, not a limitation of the utility model. The scope defined by the present utility model can be seen in the claims, and within the protection scope of the present utility model, any form of modification can be made.

Claims

1. An expandable lifting device applicable to large-sized ring forgings, characterized in that: It includes a central ring (1), on the outer circumferential surface of which several extension brackets (2) are evenly spaced along the circumference. A chain is cooperatively installed on a single extension bracket (2), and a locking chain (4) is detachably installed on a single extension bracket (2). The end of a single locking chain (4) is cooperatively installed with a hook (5). By adjusting the installation position of the locking chain (4) on the corresponding extension bracket (2), workpieces (3) of different sizes can be matched. The lifting device is connected to the output end of the overhead crane through the chain, and the hook (5) hooks the workpiece (3) at the same time, so as to transfer and transport the workpiece (3) through the overhead crane.

2. The expandable lifting device applicable to large-sized ring forgings according to claim 1, wherein: The structure of the central ring (1) is as follows: it includes a circular ring body (101), on the outer circumferential surface of which several first connecting plates (102) are evenly spaced along the circumference. The first connecting plates (102) are used for installing the extension brackets (2) and are in one-to-one correspondence with the extension brackets (2). Several connecting holes (103) are formed on the end surface of a single first connecting plate (102), and the first connecting plate (102) is cooperatively installed with the corresponding extension bracket (2) through the connecting holes (103).

3. The expandable lifting device applicable to large-sized ring forgings according to claim 1, wherein: The structure of a single extension bracket (2) is as follows: it includes several connecting frames (201) extending radially along the central ring (1), and adjacent two connecting frames (201) are cooperatively connected through a second connecting plate (202). On the end surface of a single connecting frame (201), a first mounting hole group (203), a second mounting hole group (204), a third mounting hole group (205), and a fourth mounting hole group (206) are formed.

4. The expandable lifting device applicable to large-sized ring forgings according to claim 3, wherein: For a single connecting frame (201), the first mounting hole group (203) includes at least four first mounting holes, and the connecting frame (201) is cooperatively connected to the central ring (1) through the first mounting holes.

5. The expandable lifting device applicable to large-sized ring forgings according to claim 3, wherein: For a single connecting frame (201), the second mounting hole group (204) includes at least one second mounting hole, and the connecting frame (201) is cooperatively connected to the corresponding chain through the second mounting hole.

6. The expandable lifting device applicable to large-sized ring forgings according to claim 3, wherein: For a single connecting frame (201), the third mounting hole group (205) includes at least three third mounting holes, and the connecting frame (201) is cooperatively connected to the corresponding locking chain (4) through the third mounting holes.

7. The extendable lifting device applicable to large-sized ring forgings according to claim 3, characterized in that: For a single connecting frame (201), the fourth mounting hole group (206) includes at least two fourth mounting holes, and the connecting frame (201) is cooperatively connected to the second connecting plate (202) through the fourth mounting holes.

8. The expandable lifting device applicable to large-sized ring forgings according to claim 3, characterized in that: Several reinforcing ribs (207) are arranged on a single connecting frame (201).

9. The expandable lifting device applicable to large-sized ring forgings according to claim 1, wherein: At least one reinforcing plate (7) is cooperatively installed between adjacent two extension brackets (2).

10. The expandable lifting device applicable to large-sized ring forgings according to claim 1, characterized in that: A single locking chain (4) is detachably installed on the corresponding extension bracket (2) through a connecting pin (6).