A swage fitting lifting device and lifting device

Abstract

This utility model discloses a lifting tool and lifting device suitable for ring forgings. The lifting tool includes a hook neck, a hook body, and a hook shank. The hook shank includes a first rod and a second rod connected to each other. The first rod is connected to the end of the hook body away from the hook neck. The angle between the first rod and the hook body is 110~160°, the angle between the first rod and the second rod is 80~90°, and the angle between the hook body and the plane containing the first rod is 40~80°. The hook neck, hook body, and hook shank are an integral structure. The lifting device includes at least two lifting tools. The lifting tool of this utility model has an M-shaped structure, which allows the ring forging to fit tightly with the lifting tool, ensuring that the lifting tool and the ring forging remain in close contact and do not disengage during vertical and horizontal movement. It features high lifting stability and safe use. The lifting tool has a simple structure, low investment cost, high operating efficiency, and can adapt to lifting various types of ring forgings, meeting diverse lifting needs. It is also easy to disassemble.

Description

Technical Field

[0001] This utility model relates to the technical field of ring forging hoisting devices, and in particular to a hoisting tool and hoisting device suitable for ring forgings. Background Technology

[0002] Lifting equipment commonly uses specialized rigging such as hooks, slings, and chains. During the forging process, the produced ring forgings often require specially structured lifting devices for hoisting. Slings are currently the most commonly used lifting tools for ring forgings, used to lift and protect them from damage.

[0003] In practical applications, most lifting slings are made of synthetic fibers such as polyester, nylon, and polypropylene, which are lightweight and flexible. However, when lifting large ring forgings or irregularly shaped forgings with end flanges (I-type, T-type, L-type), the contact area between the sling and the edge of the forging is small, making slippage easy. Furthermore, stress concentration at the contact point can accelerate sling wear, shorten service life, and increase replacement costs and safety risks, thus limiting the structural and performance characteristics of lifting slings. In addition, these limitations make them less adaptable to complex working conditions, making it difficult to meet diverse lifting needs.

[0004] Therefore, a new type of hoisting device suitable for ring forgings needs to be designed. Utility Model Content

[0005] The purpose of this invention is to solve the problems of existing slings slipping easily, wearing out quickly, and failing to meet diverse lifting needs when lifting ring forgings, and to provide a lifting tool and device suitable for ring forgings.

[0006] In a first aspect, this utility model provides a lifting tool suitable for ring forgings, including a hook neck, the hook neck being arc-shaped, with a hook body and a hook shank symmetrically connected to both ends of the hook neck, the hook shank including a first rod and a second rod connected to each other, the first rod being connected to the end of the hook body away from the hook neck, the angle between the first rod and the hook body being 110~160°, the angle between the first rod and the second rod being 80~90°, the angle between the hook body and the plane containing the first rod being 40~80°, and the hook neck, the hook body and the hook shank being an integral structure.

[0007] In the technical solution of this utility model, the lifting device includes a hook neck, a hook body, and a hook handle connected to each other. The hook neck is arc-shaped. The angle between the first rod body and the hook body is 110~160°, the angle between the first rod body and the second rod body is 80~90°, and the angle between the hook body and the plane of the first rod body is 40~80°. With the above parameters, the lifting device has an open M-shaped structure. The hook neck is used to connect with the sling. The second rod body contacts the bottom surface of the outer periphery of the ring forging or the flange of the flanged ring forging. As a load-bearing component, when a lifting force is applied to the lifting device, an upward lifting force and a clamping force towards the center of the ring forging are generated, so that the ring forging can be tightly attached to the lifting device. This ensures that the lifting device and the ring forging are in close contact and do not disengage during vertical and horizontal movement of the ring forging. It has the characteristics of high lifting stability and safe use.

[0008] As a preferred embodiment of this utility model, the front of the hook neck has a V-shaped outline, and the angle of the bend of the hook neck is 50~100°.

[0009] As a preferred embodiment of this utility model, the angle between the first rod and the hook is 130~150°.

[0010] As a preferred embodiment of this utility model, the angle between the first rod and the second rod is 90°.

[0011] As a preferred embodiment of this utility model, the angle between the hook body and the plane containing the first rod body is 55~70°.

[0012] As a preferred embodiment of this utility model, the length of the second rod is 20~100mm.

[0013] As a preferred embodiment of this utility model, the surface of the second rod is provided with anti-slip texture. By providing anti-slip texture on the surface of the second rod, the friction between the ring forging and the second rod can be further increased, making the lifting device less prone to movement during lifting operations and ensuring high lifting stability.

[0014] As a preferred embodiment of this utility model, the connection between the first rod and the second rod is rounded.

[0015] In a preferred embodiment of this invention, the length of the first rod is greater than the height of the ring forging. During hoisting operations, the first rod is parallel to the height direction of the ring forging, limiting the length of the first rod to be greater than the height of the ring forging, thus ensuring that the rod can stably operate or support the ring forging during hoisting.

[0016] As a preferred embodiment of the present invention, the first rod body includes a left first rod body and a right first rod body arranged in parallel, and the second rod body includes a left second rod body and a right second rod body arranged in parallel.

[0017] As a preferred embodiment of this utility model, the lifting device is provided with a rust-preventive oil layer.

[0018] In a second aspect, the present invention provides a lifting device comprising at least two of the aforementioned lifting devices suitable for ring forgings.

[0019] Preferably, the lifting device further includes slings and a lifting hook, the number of slings matching the number of lifting devices, the slings being connected to the hook neck of the lifting devices, and the lifting hook being connected to the end of the slings away from the lifting devices.

[0020] Preferably, the hoisting device includes three of the aforementioned lifting tools.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a lifting device suitable for ring forgings. The lifting device has an open M-shaped structure, wherein the hook neck is used to connect with the sling, and the second rod body contacts the bottom surface of the outer periphery of the ring forging or the flange of the flanged ring forging, serving as a load-bearing component. When a lifting force is applied to the lifting device, an upward lifting force and a clamping force towards the center of the ring forging are generated, so that the ring forging can be tightly fitted with the lifting device, ensuring that the lifting device and the ring forging remain in close contact and do not disengage during vertical and horizontal movement of the ring forging. It has the characteristics of high lifting stability and safe use.

[0022] 2. This utility model provides a lifting tool suitable for ring forgings, wherein the hook neck, hook body and hook shank are integrally formed by an integral molding process, which can enhance the overall strength and stability of the lifting tool and extend its service life.

[0023] 3. This utility model provides a lifting tool suitable for ring forgings. It has a simple structure, low investment cost, high operating efficiency, can adapt to lifting various types of ring forgings, meets diverse lifting needs, and is easy to disassemble.

[0024] 4. This utility model provides a hoisting device that uses at least two lifting tools to ensure stable hoisting and avoid unsafe hazards such as tipping over, thus better guaranteeing the safe operation of hoisting ring forgings. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the lifting tool applicable to ring forgings in this utility model; Figure 2 This is a front view schematic diagram of the lifting tool applicable to ring forgings in this utility model; Figure 3 This is a side view schematic diagram of the lifting tool applicable to ring forgings in this utility model; Figure 4This is a top view schematic diagram of the lifting tool applicable to ring forgings in this utility model; Figure 5 This is a schematic diagram of the hoisting device in this utility model; Figure 6 for Figure 5 A magnified view of a portion of the image; Figure 7 This is a top view schematic diagram of the hoisting device in this utility model; Marked in the image: 1-Ring forging, 2-Lifting tool, 21-Hook neck, 22-Hook body, 23-First rod body, 24-Second rod body, 3-Lifting strap, 4-Lifting hook, 5-Platform. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0027] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are set as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," "parallel," or "coaxial" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0029] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0030] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0031] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0032] Example 1 like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a lifting device suitable for ring forgings includes a hook neck 21, which is arc-shaped. Hook bodies 22 and hook handles are symmetrically connected to both ends of the hook neck 21. The hook handle includes a first rod 23 and a second rod 24 connected to each other. The first rod 23 is connected to the end of the hook body 22 away from the hook neck 21. The angle between the first rod 23 and the hook body 22 is 110~160°, the angle between the first rod 23 and the second rod 24 is 80~90°, and the angle between the plane containing the hook body 22 and the first rod 23 is 40~80°. The hook neck 21, hook body 22, and hook handle are an integral structure.

[0033] The lifting device structure consists of hook neck 21, hook body 22 and hook shank. Hook body 22, hook neck 21 and hook shank are all integrally formed by high-strength tool round steel forging process. The lifting device 2 has an open M-shaped arc structure. The hook shank at the open end is connected to the hook body 22. The other end of the hook body 22 and the hook neck 21 are symmetrically distributed.

[0034] In some embodiments, the front of the hook neck 21 has a V-shaped profile, and the angle at the bend of the hook neck 21 is 50~100°. In the above technical solution, the V-shaped profile of the front of the hook neck 21 facilitates subsequent connection with the sling 3 and makes hooking operations convenient.

[0035] In some embodiments, the angle between the first rod 23 and the hook 22 is 130~150°, and the angle between the first rod 23 and the second rod 24 is 90°; the angle between the hook 22 and the plane containing the first rod 23 is 55~70°. In this embodiment, the hook 22 is a line segment connecting the hook neck 21 and the hook shank. The angle between the first rod 23 and the hook 22 is optimized according to the rated load of the lifting device to reduce stress concentration at the transition point when the lifting device is under load. Furthermore, the diameters of the hook 22, hook neck 21, and hook shank in the overall lifting device 2 are designed based on the rated load of the lifting device.

[0036] In some embodiments, the length of the first rod 23 is greater than the height of the ring forging 1. During hoisting operations, the second rod 24 contacts the bottom surface of the outer periphery of the ring forging 1 or the flange portion of the flanged ring forging 1, serving as a load-bearing component. The first rod 23 is parallel to the height direction of the ring forging 1, limiting the length of the first rod 23 to be greater than the height of the ring forging 1, ensuring that the rod can stably operate or support the ring forging 1 during hoisting. Furthermore, by adjusting the length of the first rod 23, it can accommodate hoisting various types of ring forgings 1.

[0037] In some embodiments, the connection between the first rod 23 and the second rod 24 is rounded, with a diameter of 10–30 mm. In the above technical solution, the connection between the first rod 23 and the second rod 24 adopts an arc transition with an arc diameter of 10–30 mm. This design can reduce stress concentration, improve structural strength, and avoid safety hazards caused by sharp edges.

[0038] In some embodiments, the length of the second rod 24 is 20~100mm. During the hoisting process, the second rod 24 contacts the ring forging 1 and is the main load-bearing component. The length of the second rod 24 is 20~100mm. The length of the second rod 24 is determined by comprehensively considering factors such as mechanical balance, load-bearing capacity and operational safety during hoisting.

[0039] In some embodiments, the surface of the second rod 24 is provided with anti-slip texture. The anti-slip texture can increase the friction between the ring forging 1 and the second rod 24, thereby improving the firmness of the connection. By providing anti-slip texture on the surface of the second rod 24, the friction between the ring forging 1 and the second rod 24 can be further increased, making it less likely for the lifting device 2 to move during lifting operations, resulting in high lifting stability.

[0040] In some embodiments, the first rod 23 includes a left first rod and a right first rod arranged in parallel, and the second rod 24 includes a left second rod and a right second rod arranged in parallel. In the vertical direction, the left first rod and the right first rod are symmetrically parallel to each other along the hook neck 21; in the horizontal direction, the left second rod and the right second rod are symmetrically parallel to each other along the hook neck 21.

[0041] In some embodiments, the lifting device is provided with a rust-preventive oil layer. The rust-preventive oil layer forms a protective film on the metal surface of the lifting device, isolating it from corrosive substances such as moisture and oxygen in the air, thereby slowing down the rusting process of the lifting device, extending its service life, and ensuring safety during use.

[0042] In manufacturing the lifting device, a suitable round steel bar is first used. The bar is heated to a suitable forging temperature range and then forged using forging equipment. This process gradually shapes the round steel bar into the form of the hook neck 21, hook body 22, and hook shank in a mold. During forging, the forging process parameters are strictly controlled to ensure the dimensional accuracy and structural properties of each part of the lifting device. After forging, the lifting device undergoes further processing to remove burrs and flash. The hook neck 21 is ground to form a smooth, rounded transition surface. Anti-slip textures are machined on the hook shank, and other transition sections and end faces are rounded. The lifting device 2 then undergoes overall surface tempering and shot peening to improve its hardness and wear resistance. Finally, the finished lifting device 2 undergoes quality inspection, including visual inspection, dimensional measurement, and mechanical property testing, to ensure that the lifting device 2 meets relevant standards and usage requirements.

[0043] Example 2 This embodiment provides a lifting tool suitable for ring forgings, which has the same structure as the lifting tool 2 in embodiment 1. The lifting tool 2 has an M-shaped structure when viewed from above. The angle between the first rod 23 and the hook 22 is 145°, the angle between the first rod 23 and the second rod 24 is 90°, and the angle between the hook 22 and the plane containing the first rod 23 is 65°.

[0044] Example 3 This embodiment provides a lifting device, including at least two of the above-mentioned lifting tools 2 suitable for ring forgings, and also includes slings 3 and lifting hooks 4. The number of slings 3 matches the number of lifting tools 2. The slings 3 are connected to the hook necks 21 of the lifting tools 2, and the lifting hooks 4 are connected to the end of the slings 3 away from the lifting tools 2.

[0045] In this embodiment, the hoisting device includes three lifting devices 2. Utilizing the principle that three points determine a plane, the three lifting devices 2 are evenly distributed to form a supporting plane.

[0046] like Figure 5 , Figure 6 , Figure 7 As shown, the sling 3 passes through the lifting device 2 and connects to the hook neck 21. The ring forging 1 is placed on the platform 5, and the hook shank contacts the bottom edge of the flange of the ring forging 1. The lifting device 2 has three hooks evenly distributed at a circumferential angle of 120° around the forging. After checking that the position is correct, the heavy hook 4 is lifted lightly, and a certain preload is transferred to the hook neck 21 by the sling 3. The three hook necks 21 generate two component forces through the inclined side of the hook body 22: an upward lifting force and a clamping force towards the center of the ring forging 1. This ensures that the ring forging 1 remains balanced with its own weight during the upward vertical and horizontal movement, while the hook shank always maintains close contact with the bottom edge of the flange of the forging through the radial component force and does not disengage. At the same time, based on the geometric principle that three points determine a plane, the ring forging 1 can maintain stable movement during lifting and transportation, thereby avoiding the safety risk of overturning.

[0047] When using the lifting device of this utility model, the lifting sling does not directly contact the ring forging, thereby avoiding the problems of stress concentration at the edge of the forging, easy wear of the lifting sling, and poor adaptability that exist when lifting irregularly shaped ring forgings with lifting slings. This improves the service life and safety of the lifting sling.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lifting tool suitable for ring forgings, characterized in that, The device includes a hook neck (21), which is arc-shaped. The hook neck (21) is symmetrically connected to the two ends of the hook neck (21) with a hook body (22) and a hook shank. The hook shank includes a first rod body (23) and a second rod body (24) connected to each other. The first rod body (23) is connected to the end of the hook body (22) away from the hook neck (21). The angle between the first rod body (23) and the hook body (22) is 110~160°. The angle between the first rod body (23) and the second rod body (24) is 80~90°. The angle between the hook body (22) and the plane containing the first rod body (23) is 40~80°. The hook neck (21), the hook body (22) and the hook shank are an integral structure.

2. The lifting tool for ring forgings according to claim 1, characterized in that, The hook neck (21) has a V-shaped outline on the front, and the angle of the bend of the hook neck (21) is 50~100°.

3. The lifting tool for ring forgings according to claim 1, characterized in that, The angle between the first rod (23) and the hook (22) is 130~150°; And / or the angle between the first rod (23) and the second rod (24) is 90°; And / or the angle between the plane containing the hook (22) and the first rod (23) is 55~70°.

4. The lifting tool for ring forgings according to claim 1, characterized in that, The length of the second rod (24) is 20~100mm.

5. The lifting tool for ring forgings according to claim 1, characterized in that, The surface of the second rod (24) is provided with anti-slip texture.

6. The lifting tool for ring forgings according to claim 1, characterized in that, The connection between the first rod (23) and the second rod (24) is rounded.

7. The lifting tool for ring forgings according to claim 1, characterized in that, The length of the first rod (23) is greater than the height of the ring forging (1).

8. The lifting tool for ring forgings according to claim 1, characterized in that, The first rod (23) includes a left first rod and a right first rod arranged in parallel, and the second rod (24) includes a left second rod and a right second rod arranged in parallel.

9. A hoisting device, characterized in that, Includes at least two of the lifting devices applicable to ring forgings as described in any one of claims 1-8.

10. The hoisting device according to claim 9, characterized in that, The lifting device also includes slings (3) and lifting hooks (4). The number of slings (3) matches the number of lifting devices (2). The slings (3) are connected to the hook necks (21) of the lifting devices (2). The lifting hooks (4) are connected to the end of the slings (3) away from the lifting devices (2).

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