Tower hoisting lug

Abstract

The utility model discloses a tower hoisting lug, which relates to the field of lugs and comprises a lug plate and a steel bushing, a hoisting hole is arranged on the lug plate, the steel bushing is arranged in the hoisting hole, a thickened steel ring is welded and fixed at one end of the steel bushing, an external thread is arranged on the outer surface of the other end of the steel bushing, and a nut is in threaded connection with the external thread. According to the utility model, the detachable steel bushing is arranged in the lifting hole, so that the shackle or the steel wire rope is in contact with the steel bushing, and the contact area is obviously increased, so that the local contact stress is effectively reduced, and the safety of the lifting lug under a heavy load working condition is improved; and under the action of the nut and the thickened steel ring, the steel lining and the lug plate are connected and fastened, so that the use reliability of the lifting lug is effectively improved, the occurrence probability of safety accidents is reduced, and a powerful guarantee is provided for the safety and construction efficiency of tower hoisting operation.

Description

Technical Field

[0001] This utility model belongs to the field of lifting lugs, specifically relating to a lifting lug for tower hoisting. Background Technology

[0002] A tower is a process equipment with a cylindrical welded structure, consisting of a cylinder, end caps (or covers), and supports. It is a non-standard piece of equipment specifically designed and manufactured to meet the requirements of a particular production process.

[0003] Because tower equipment is typically characterized by its height, weight, and complex structure, its hoisting operation is a critical step in the equipment installation process, and the safety of the hoisting directly affects the project quality and construction efficiency.

[0004] During tower hoisting, the lifting lugs, as the core components connecting the tower body and the hoisting equipment, are of paramount importance in terms of strength, stability, and reliability.

[0005] Traditional lifting lug structures typically involve welding thick steel plates directly to the tower body, with lifting holes drilled into the plates. While this traditional structure is simple to manufacture, the contact area between the shackle or wire rope and the lifting hole is small. During lifting, the shackle or wire rope directly contacts the hole wall, resulting in excessive local contact stress. Under heavy load conditions, this may cause cracks at the edge of the lifting hole, leading to safety accidents.

[0006] Therefore, corresponding improvements should be made to address the shortcomings of the existing lifting lugs. Utility Model Content

[0007] In view of the problem that traditional lifting lugs have a small contact area between the shackle or wire rope and the lifting hole, and the shackle or wire rope directly contacts the hole wall during the lifting process, the actual contact area is limited, resulting in excessive local contact stress. Under heavy load conditions, this may cause cracks at the edge of the lifting hole. This utility model provides a tower lifting lug.

[0008] The solution adopted by this utility model to solve its technical problem is: a tower hoisting lug, including a lug plate and a steel bushing. The lug plate has a hoisting hole, and the steel bushing is set in the hoisting hole. A thickened steel ring is welded and fixed to one end of the lug plate. The outer surface of the other end of the steel bushing has an external thread, and a nut is threaded onto the external thread. The thickened steel ring and the nut are respectively attached to the two sides of the lug plate.

[0009] Preferably, the ear plate is made of 16mm steel plate.

[0010] Preferably, two ribs are welded and fixed to both the front and rear sides of the ear plate.

[0011] Preferably, a support rod is welded and fixed between the left and right ribs.

[0012] Preferably, the bottom surface of the support rod is flush with the bottom surface of the ear plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by setting a detachable rigid bushing inside the lifting hole, allows the shackle or wire rope to contact the rigid bushing, significantly increasing the contact area and thus effectively reducing local contact stress. This improves the safety of the lifting lug under heavy load conditions. Furthermore, under the action of the nut and the thickened steel ring, the rigid bushing is firmly connected to the lug plate, effectively improving the reliability of the lifting lug and reducing the probability of safety accidents. This provides a strong guarantee for the safety and construction efficiency of tower hoisting operations.

[0015] 2. By setting nuts and thickened steel rings, this utility model prevents the rigid bushing from shifting. On the other hand, the nuts and thickened steel rings reduce the risk of plastic deformation or even cracking at both ends of the rigid bushing, thus ensuring the safety of tower hoisting operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front and rear three-dimensional structure of this utility model;

[0017] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the rigid bushing of this utility model.

[0019] In the diagram: 1. Ear plate, 2. Rib plate, 3. Support rod, 4. Steel bushing, 5. Nut, 6. Thickened steel ring. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figure 1-3 This utility model provides a technical solution for tower hoisting lugs:

[0022] Example 1:

[0023] according to Figure 1-3 As shown, it includes a lug plate 1 and a rigid bushing 4. The lug plate 1 is made of 16mm steel plate and has a lifting hole. The rigid bushing 4 is set in the lifting hole. By setting the rigid bushing 4 in the lifting hole, the shackle or wire rope comes into contact with the rigid bushing 4, which significantly increases the contact area, thereby effectively reducing the local contact stress and improving the safety of the lifting lug under heavy load conditions.

[0024] A thickened steel ring 6 is welded and fixed to one end of the steel bushing 4, and an external thread is opened on the outer surface of the other end of the steel bushing 4. A nut 5 is threaded onto the external thread. Under the action of the nut 5 and the thickened steel ring 6, the steel bushing 4 is connected and tightened to the lug 1, which effectively improves the reliability of the lifting lug and reduces the probability of safety accidents, providing a strong guarantee for the safety and construction efficiency of tower hoisting operations.

[0025] The thickened steel ring 6 and the nut 5 are respectively attached to both sides of the ear plate 1. By setting the nut 5 and the thickened steel ring 6, on the one hand, the rigid bushing 4 is prevented from shifting, and on the other hand, the nut 5 and the thickened steel ring 6 reduce the risk of plastic deformation or even cracking at both ends of the rigid bushing 4, thus ensuring the safety of tower hoisting operations.

[0026] In practical use, the lifting lug of this utility model is first used to firmly weld the lug plate 1 to the designated position of the tower, and the direction of the lifting hole should meet the lifting requirements. Then, the threaded end of the steel bushing 4 is inserted into the lifting hole. Then, the nut 5 is threadedly connected to the steel bushing 4 and tightened to ensure that the thickened steel ring 6 and the nut 5 are tightly fitted to both sides of the lug plate 1, so that the steel bushing 4 is firmly fixed in the lifting hole of the lug plate 1 to prevent it from shifting. Finally, during the lifting, the shackle or wire rope is connected to the steel bushing 4 to lift the tower.

[0027] Example 2:

[0028] Based on Example 1, such as Figure 1 and Figure 2 As shown, two ribs 2 are welded and fixed on both the front and rear sides of the ear plate 1. The ribs 2 on both sides form a reinforcing rib structure, which greatly improves the bending resistance of the ear plate 1 and ensures the overall stability of the lifting lug.

[0029] A support rod 3 is welded and fixed between the two left and right ribs 2. The bottom surface of the support rod 3 is flush with the bottom surface of the ear plate 1, so as to facilitate the welding and fixing of the support rod 3 to the tower, increase the welding area, and further improve the stability of the lifting lug during use.

Claims

1. A tower crane lifting lug, comprising a lug plate and a steel bushing, wherein the lug plate has lifting holes, characterized in that: The steel bushing is installed in the lifting hole, with a thickened steel ring welded to one end. The outer surface of the other end of the steel bushing is provided with an external thread, and a nut is threaded onto the external thread. The thickened steel ring and the nut are respectively attached to the two sides of the ear plate.

2. A tower lifting lug according to claim 1, characterised in that: The ear plate is made of 16mm steel plate.

3. The tower lifting lug of claim 1, wherein: Two ribs are welded and fixed to both the front and rear sides of the ear plate.

4. A tower lifting lug according to claim 3, characterised in that: A strut is welded and fixed between the two ribs on the left and right sides.

5. A tower lifting lug according to claim 4, characterised in that: The bottom surface of the support rod is flush with the bottom surface of the ear plate.

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