Die forging chain convenient to disassemble

Abstract

The utility model relates to the technical field of die forging chains, in particular to a die forging chain convenient to disassemble. According to the technical scheme, the connecting device comprises a connecting pin shaft and a connecting chain plate, first conical holes are symmetrically formed in the positions, close to the two sides of the top end, of the outer surface of the connecting chain plate, the two first conical holes communicate with each other, and a connecting notch is formed in the position, close to the bottom end, of the front surface of the connecting chain plate; second conical holes are symmetrically formed in the positions, close to the two sides of the bottom end, of the outer surface of the connecting chain plate, first conical slopes are symmetrically arranged on the two sides of the outer surface of the connecting pin shaft, and rotating sleeves are symmetrically and movably connected to the two sides of the outer surface of the connecting pin shaft in a sleeving mode. Second conical slopes are symmetrically arranged on the inner walls and the outer surfaces of the two rotating sleeves correspondingly, and annular clamping grooves are formed in the positions, close to the two ends, of the outer surfaces of the connecting pin shafts correspondingly. According to the utility model, the connecting pin shaft on the rotary connecting part of the die forging chain can be prevented from being blocked due to deformation and cannot be disassembled, and the die forging chain is convenient to disassemble.

Description

Technical Field

[0001] This utility model relates to the field of forging chain technology, specifically a forging chain that is easy to disassemble. Background Technology

[0002] Forged chains (also known as die-forged chains) are metal chains manufactured through a die-forging process. This process involves applying pressure to a metal material using a die, causing it to plastically deform within the die cavity, ultimately forming parts with specific shapes and properties. Forged chains are mainly used in high-strength, high-wear-resistant industrial applications such as lifting and transportation, mining machinery, oil drilling, and industrial transmission.

[0003] During long-term, high-intensity use, the rotating connection parts of current forged chains can deform, causing the connecting pins at the rotating connection parts to jam during disassembly, making it difficult to remove the connecting pins. To address this, we propose a forged chain that is easier to disassemble. Utility Model Content

[0004] The purpose of this invention is to provide a forging chain that is easy to disassemble. It has the advantage of avoiding the connecting pins on the rotating connection parts of the forging chain from getting stuck due to deformation, thus facilitating the disassembly of the forging chain. This solves the problem that in the current forging chain, the rotating connection parts of the chain deform during long-term high-intensity use, causing the connecting pins on the rotating connection parts to get stuck during disassembly, making it difficult to remove the connecting pins.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a forging chain that is easy to disassemble, comprising a connecting pin and a connecting chain plate. The outer surface of the connecting chain plate is symmetrically provided with first conical holes on both sides near the top, and the two first conical holes are connected. A connecting notch is provided on the front surface of the connecting chain plate near the bottom. Second conical holes are symmetrically provided on both sides of the outer surface of the connecting chain plate near the bottom. First conical inclined surfaces are symmetrically provided on both sides of the outer surface of the connecting pin. Rotating sleeves are symmetrically and movably sleeved on both sides of the outer surface of the connecting pin. Second conical inclined surfaces are symmetrically provided on the inner walls and outer surfaces of both rotating sleeves. Annular grooves are provided on both ends of the outer surface of the connecting pin, and limit springs are provided inside both annular grooves.

[0006] Preferably, the connecting chain plate has symmetrical weight-reducing grooves on both sides of its outer surface, which can reduce the weight of the connecting chain plate, thereby reducing the weight of the forging chain and saving energy.

[0007] Preferably, a second disassembly pull ring is provided on the outer side of both rotating sleeves, which facilitates the removal of the rotating sleeve from the connecting pin through the second disassembly pull ring, so as to facilitate the disassembly of the forging chain.

[0008] Preferably, a limiting ring is movably sleeved on the outer surface of the connecting pin near the outer side of the two rotating sleeves. The limiting ring is located between the rotating sleeve and the limiting snap ring, and plays a limiting role in the rotating sleeve.

[0009] Preferably, both of the limiting rings are provided with a first disassembly pull ring on their outer sides, which facilitates the removal of the limiting ring from the connecting pin through the first disassembly pull ring, so as to facilitate the disassembly of the forging chain.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model, by setting a connecting chain plate, a connecting notch, a first conical hole, a second conical hole, a connecting pin, a first conical inclined surface, a rotating sleeve, and a second conical inclined surface, achieves the effect of preventing the connecting pin on the rotating connection part of the forging chain from getting stuck due to deformation, thus facilitating the disassembly of the forging chain. Adjacent connecting chain plates are connected end-to-end to form a forging chain. When adjacent connecting chain plates are connected end-to-end, the top of the connecting chain plate near the first conical hole is inserted into the connecting notch, ensuring that the first and second conical holes are on the same axis. The connecting pin is then inserted through and into the first and second conical holes. When rotating sleeves are fitted onto both ends, the second conical inclined surface on the inner wall of the rotating sleeve contacts the first conical inclined surface on the outer surface of the connecting pin. The second conical inclined surface on the outer surface of the rotating sleeve contacts the conical inner wall of the first conical hole and the second conical hole. The limiting spring inside the annular groove limits the rotating sleeve. Since the connecting pin, the first conical hole, the second conical hole, and the rotating sleeve are all in contact with inclined surfaces, it is easy to remove the rotating sleeve from the connecting pin and from the first and second conical holes. When the rotating sleeve is removed, the connecting pin can easily be removed from the first and second conical holes.

[0012] 2. By setting a weight-reducing groove, this utility model can reduce the weight of the connecting chain plate, thereby reducing the weight of the forging chain and saving energy.

[0013] 3. By providing a first disassembly pull ring, this utility model facilitates the removal of the limiting ring from the connecting pin shaft, thereby enabling the disassembly of the forging chain.

[0014] 4. By providing a second disassembly pull ring, this utility model facilitates the removal of the rotating sleeve from the connecting pin, thereby enabling the disassembly of the forging chain. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial three-dimensional structural diagram of the connecting chain plate of this utility model;

[0017] Figure 3 This is a partial three-dimensional structural diagram of the connecting pin of this utility model;

[0018] Figure 4 This is a schematic diagram of the main cross-sectional structure of this utility model.

[0019] Reference numerals in the attached drawings: 1. Connecting pin; 2. Connecting notch; 3. Connecting chain plate; 4. First conical hole; 5. Weight reduction groove; 6. Second conical hole; 7. First conical inclined surface; 8. Limiting retaining ring; 9. First disassembly pull ring; 10. Limiting snap ring; 11. Annular groove; 12. Second disassembly pull ring; 13. Rotating sleeve; 14. Second conical inclined surface. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figures 1-4As shown, this utility model proposes a forging chain that is easy to disassemble, including a connecting pin 1 and a connecting chain plate 3. The outer surface of the connecting chain plate 3 has symmetrically arranged first conical holes 4 near the top two sides, and the two first conical holes 4 are connected. The diameter of the first conical holes 4 increases radially outward from the connecting chain plate 3. A connecting notch 2 is provided on the front surface of the connecting chain plate 3 near the bottom. When the connecting chain plates 3 are connected end to end, the top of the connecting chain plate 3 is inserted into the connecting notch 2, and the chain is rotatably connected by the connecting pin 1, thus forming a forging chain. The outer surface of the connecting chain plate 3 has symmetrically arranged second conical holes 6 near the bottom two sides, and the two second conical holes 6 are coaxial. The diameter of the second conical holes 6 increases radially outward from the connecting chain plate 3, and the diameter of the second conical holes 6 is larger than the diameter of the first conical holes 4. The connecting pin 1 has a first conical inclined surface 7 symmetrically distributed on both sides of the surface. The outer diameter of the connecting pin 1 decreases from the middle to both ends, and the outer diameter of the connecting pin 1 is smaller than the diameter of the first conical hole 4. Rotating sleeves 13 are symmetrically and movably sleeved on both sides of the outer surface of the connecting pin 1. The inner wall and outer surface of the two rotating sleeves 13 are symmetrically distributed with second conical inclined surfaces 14. The outer surface of the connecting pin 1 has annular grooves 11 near both ends, and each of the two annular grooves 11 has a limiting spring 10 inside. The limiting spring 10 and the annular grooves 11 limit the rotation of the sleeves 13 and facilitate disassembly and assembly. The outer surface of the connecting pin 1 has a limiting ring 8 movably sleeved near the outer side of the two rotating sleeves 13. The limiting ring 8 is located between the rotating sleeve 13 and the limiting spring 10 and limits the rotation of the sleeve 13.

[0023] In use, adjacent connecting chain plates 3 are connected end-to-end to form a forging chain. When adjacent connecting chain plates 3 are connected end-to-end, the top of the connecting chain plate 3 near the first conical hole 4 is inserted into the connecting notch 2, so that the first conical hole 4 and the second conical hole 6 are on the same axis. Then, the connecting pin 1 is inserted through and into the first conical hole 4 and the second conical hole 6. Rotating sleeves 13 are then fitted onto both ends of the connecting pin 1. The second conical inclined surface 14 on the inner wall of the rotating sleeve 13 contacts the first conical inclined surface 7 on the outer surface of the connecting pin 1. The conical inclined surface 14 contacts the conical inner walls of the first conical hole 4 and the second conical hole 6. The limiting spring 10 inside the annular groove 11 limits the rotation sleeve 13. Since the connecting pin 1, the first conical hole 4 and the second conical hole 6 are all in contact with the rotating sleeve 13, it is easy to remove the rotating sleeve 13 from the connecting pin 1 and from the first conical hole 4 and the second conical hole 6. When the rotating sleeve 13 is removed, the connecting pin 1 can easily be removed from the first conical hole 4 and the second conical hole 6, thus facilitating the disassembly of the forging chain.

[0024] Example 2

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention proposes a forging chain that is easy to disassemble. Compared with the first embodiment, this embodiment also includes symmetrical weight-reducing grooves 5 on both sides of the outer surface of the connecting chain plate 3, which can reduce the weight of the connecting chain plate 3, thereby reducing the weight of the forging chain and saving energy. The outer sides of the two rotating sleeves 13 are provided with second disassembly pull rings 12, which are integrally formed with the rotating sleeves 13. The outer sides of the two limiting rings 8 are provided with first disassembly pull rings 9, which are integrally formed with the limiting rings 8.

[0026] In this embodiment, the first disassembly pull ring 9 and the second disassembly pull ring 12 can pull the limiting stop ring 8 and the rotating sleeve 13 so that the rotating sleeve 13 and the limiting stop ring 8 can be removed from the connecting pin 1, which facilitates the disassembly of the forging chain.

[0027] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A drop forged chain for easy disassembly comprising a connecting pin (1) and a connecting link (3), characterized in that: The outer surface of the connecting chain plate (3) is symmetrically provided with first conical holes (4) near the two sides of the top end, and the two first conical holes (4) are communicated, the front surface of the connecting chain plate (3) is provided with a connecting notch (2) near the bottom end, the outer surface of the connecting chain plate (3) is symmetrically provided with second conical holes (6) near the two sides of the bottom end, the outer surface of the connecting pin shaft (1) is symmetrically provided with first conical inclined surfaces (7) at the two sides, the outer surface of the connecting pin shaft (1) is movably sleeved with rotating sleeve pipes (13) at the two sides, the inner wall and the outer surface of the two rotating sleeve pipes (13) are symmetrically provided with second conical inclined surfaces (14), the outer surface of the connecting pin shaft (1) is provided with annular clamping grooves (11) near the two ends, and the two annular clamping grooves (11) are internally provided with limiting clamping springs (10).

2. A drop forged chain according to claim 1, wherein: The outer surface of the connecting chain plate (3) is symmetrically provided with weight reduction grooves (5) at the two sides.

3. A drop forged chain according to claim 1, wherein: The outer sides of the two rotating sleeve pipes (13) are provided with second dismounting pull rings (12).

4. A drop forged chain according to claim 1, wherein: The outer surface of the connecting pin shaft (1) is movably sleeved with limiting stop rings (8) near the outer sides of the two rotating sleeve pipes (13).

5. A drop forged chain of the type described in claim 4 wherein: The outer sides of the two limiting stop rings (8) are provided with first dismounting pull rings (9).

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