Anti-fatigue lifting chain

Abstract

The utility model discloses an anti-fatigue lifting chain which comprises a first chain ring, the inner side of the first chain ring is connected with a second chain ring in a sliding mode, through holes are formed in the top end and the bottom end of the first chain ring and the top end and the bottom end of the second chain ring respectively, a connecting hose is movably inserted into the inner sides of the through holes in a penetrating mode, and the top end of the connecting hose is fixedly connected with an oil storage barrel. The oil storage cylinder is filled with lubricating oil, an oil conveying cavity is formed in the connecting hose, an oil guide rope is embedded in the inner side of the oil conveying cavity, a sponge block is arranged at the bottom of the inner side of the first chain ring, a rubber spring is arranged at the top of the sponge block, and a top disc is fixedly connected to the top end of the rubber spring. According to the chain, a series of structures are arranged, so that instantaneous stress generated when two adjacent chain rings are in contact is reduced, the probability of chain breakage is reduced, the connecting positions of the chain rings can be lubricated in time, and time needed by chain lubrication is saved.

Description

Technical Field

[0001] This utility model relates to the field of lifting chain technology, specifically to an anti-fatigue lifting chain. Background Technology

[0002] Crane chains are one of the core components of lifting machinery, mainly used to transmit power, lift or pull heavy objects. Their structure, materials and functions vary depending on the application scenario. Among them, fatigue-resistant crane chains are a special type of chain that improves fatigue resistance through material optimization, process strengthening and structural design. They are mainly used for lifting operations under high frequency, heavy load or complex working conditions, and have high toughness, wear resistance and tensile strength.

[0003] However, the connection structure between the links in existing fatigue-resistant lifting chains is similar to that of traditional chains. The sliding range between two adjacent links is relatively large. When the instantaneous force on the chain increases sharply, the joints between adjacent links are prone to stress, which can easily lead to breakage due to increased stress. In addition, since chains inevitably experience wear during use, the joints between the links are usually lubricated after a long period of use. When the chain is long, the number of joints that need lubrication increases, making the chain lubrication process cumbersome and time-consuming. Utility Model Content

[0004] The purpose of this invention is to provide a fatigue-resistant lifting chain to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-fatigue lifting chain, comprising a first chain link, a second chain link slidably connected to the inner side of the first chain link, through holes at the top and bottom of both the first and second chain links, a connecting hose movably inserted into the inner side of the through holes, an oil reservoir fixedly connected to the top of the connecting hose, the oil reservoir being filled with lubricating oil, an oil delivery chamber being formed inside the connecting hose, an oil guide rope being embedded inside the oil delivery chamber, a sponge block being provided at the bottom of the inner side of the first chain link, a rubber spring being provided at the top of the sponge block, a top plate being fixedly connected to the top of the rubber spring, and an oil seepage hole being formed on the outer wall of the connecting hose.

[0006] Preferably, the top of the oil storage cylinder is provided with an oil inlet, and the interior of the oil storage cylinder is connected to the oil delivery chamber inside the connecting hose.

[0007] Preferably, a perforation is provided at the center of the top of both the top plate and the sponge block, and the connecting hose is movably inserted and connected to the top plate and the sponge block through the perforation.

[0008] Preferably, a plurality of balls are movably embedded at the top of the top plate, and a pressure block is provided at the top of the inner side of the second chain link.

[0009] Preferably, the bottom end of the rubber spring is in contact with the bottom of the sponge block.

[0010] Preferably, a groove is provided in the middle of the bottom inner side of the first chain link, and the sponge block is embedded in the groove.

[0011] Preferably, the oil seepage hole is located on the outer wall at the junction of the connecting hose and the first and second chain links, and the oil seepage hole is slidably connected to the through hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This fatigue-resistant lifting chain, through the installation of connecting hoses, through holes, top plates, and rubber springs, limits the range of sliding between adjacent chain links. It also ensures that the chain is aligned vertically under stress. When two adjacent chain links are subjected to a sudden increase in force, the rubber springs at these links are compressed as they come into contact, thus buffering the chain and reducing the instantaneous stress generated when they come into contact, thereby lowering the probability of chain breakage.

[0014] 2. This fatigue-resistant lifting chain, through its oil reservoir, oil guide rope, oil seepage hole, and sponge block, allows for easy lubrication. Simply keep the bottom of the chain vertically downward and inject lubricating oil into the oil reservoir. The lubricating oil will flow out from the oil seepage hole along the oil guide rope and onto the corresponding sponge block. When the sponge block is squeezed, the lubricating oil will be forced out and flow to the connection between the two chain links, ensuring timely lubrication of the chain link connection and saving time required for chain lubrication. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the oil storage tank and connecting hose of this utility model;

[0017] Figure 3 for Figure 2 Enlarged view of the structure at point A in the image;

[0018] Figure 4 This is a schematic diagram of the top plate and oil guide rope structure of this utility model.

[0019] In the diagram: 1. First chain link; 2. Oil reservoir; 3. Oil inlet; 4. Connecting hose; 5. Through hole; 6. Second chain link; 7. Ball bearing; 8. Top plate; 9. Rubber spring; 10. Sponge block; 11. Oil guide rope; 12. Lubricating oil; 13. Oil delivery chamber; 14. Oil seepage hole; 15. Pressure block; 16. Perforation; 17. Groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1 to 4As shown, the fatigue-resistant lifting chain of this embodiment includes a first link 1, with a second link 6 slidably connected to the inner side of the first link 1. The first link 1 and the second link 6 are connected in a closed loop, crossing each other. The first link 1 and the second link 6 are the same size. Through holes 5 are provided at the top and bottom ends of both the first link 1 and the second link 6, and these through holes 5 are located on the same vertical line, allowing the connecting hose 4 to remain vertical when passing through the through holes 5. The connecting hose 4 is movably inserted into the inner side of the through holes 5. The connecting hose 4 has good flexibility and can reinforce the entire chain. When a link in the chain breaks, the connecting hose 4 can keep the chain connected, which helps delay the chain's breakage time. An oil reservoir 2 is fixedly connected to the top of the connecting hose 4. The oil reservoir 2 stores lubricating oil 12, allowing sufficient time and space for the lubricating oil 12 to flow into the oil delivery chamber 13 of the connecting hose 4. This facilitates the oil guide rope 11 within the oil delivery chamber 13 to fully absorb the lubricating oil 12. The oil reservoir 2 is filled with lubricating oil 12, which provides sufficient lubrication to the joints of the chain links. The inner part of the connecting hose 4 is provided with an oil delivery chamber 13. The function of the oil delivery chamber 13 is to allow the lubricating oil 12 to flow smoothly along the oil guide rope 11, so that the lubricating oil 12 can seep out from the inside of the oil seepage hole 14. The oil guide rope 11 is embedded in the inner side of the oil delivery chamber 13. The function of the oil guide rope 11 is to allow the lubricating oil 12 to flow along the connecting hose 4, so that the lubricating oil 12 can reach the corresponding oil seepage hole 14. A sponge block 10 is provided at the bottom of the inner side of the first chain link 1. The function of the sponge block 10 is to temporarily store the lubricating oil 12 that seeps out from the oil seepage hole 14, so that when the chain is straightened, it can also... It can provide lubrication, thus facilitating timely lubrication of the chain. The top of the sponge block 10 is equipped with a rubber spring 9. The rubber spring 9 has high internal resistance and has a good effect on absorbing sudden impacts and high-frequency vibrations. The top of the rubber spring 9 is fixedly connected to a top plate 8. The function of the top plate 8 is to compress the rubber spring 9, so that the rubber spring 9 is subjected to more uniform force when compressed. The outer wall of the connecting hose 4 is provided with an oil seepage hole 14. The function of the oil seepage hole 14 is to allow lubricating oil 12 to seep out from the connecting hose 4, thereby facilitating the lubrication of the chain link junction by the lubricating oil 12.

[0024] Specifically, the top of the oil reservoir 2 is provided with an oil inlet 3. The interior of the oil reservoir 2 is connected to the oil delivery chamber 13 inside the connecting hose 4. The function of the oil inlet 3 is to facilitate the injection of an appropriate amount of lubricating oil 12 into the oil reservoir 2, thereby ensuring that the lubricating oil 12 can smoothly reach the corresponding link junction on the chain.

[0025] Furthermore, both the top plate 8 and the sponge block 10 have perforations 16 at the center of their top ends. The connecting hose 4 is movably connected to the top plate 8 and the sponge block 10 through the perforations 16. The inner diameter of the perforation 16 is larger than the outer diameter of the connecting hose 4, so that the top plate 8 and the sponge block 10 can slide up and down along the connecting hose 4 as the chain slides, reducing the adverse effects on the chain when it slides along the connecting hose 4.

[0026] Furthermore, a plurality of balls 7 are movably embedded at the top of the top plate 8, and a pressure block 15 is provided at the top of the inner side of the second chain link 6. When the first chain link 1 and the second chain link 6 are tightened, the bottom of the pressure block 15 will contact and fit with the balls 7 at the top of the top plate 8, thereby avoiding direct contact between the first chain link 1 and the second chain link 6 and reducing wear at the junction of the first chain link 1 and the second chain link 6.

[0027] Furthermore, the bottom end of the rubber spring 9 is in contact with the bottom of the sponge block 10. After the rubber spring 9 is squeezed, the bottom of the rubber spring 9 will squeeze the top of the sponge block 10, so that the lubricating oil 12 absorbed by the sponge block 10 can be squeezed out, thereby facilitating the lubrication of the adjacent chain link connection by the lubricating oil 12.

[0028] Furthermore, a groove 17 is provided in the middle of the bottom inner side of the first chain link 1, and the sponge block 10 is embedded in the groove 17. The function of the groove 17 is to maintain the connection between the sponge block 10 and the chain link, so as to ensure the stability of the sponge block 10 on the chain link.

[0029] Furthermore, the oil seepage hole 14 is opened on the outer wall at the junction of the connecting hose 4 and the first chain link 1 and the second chain link 6. The oil seepage hole 14 is slidably connected to the through hole 5. The oil seepage hole 14 can allow the lubricating oil 12 inside the connecting hose 4 to seep out, so that the lubricating oil 12 can smoothly lubricate the junction of the chain links.

[0030] The usage method of this embodiment is as follows: Before using this anti-fatigue lifting chain, the bottom end of the chain should be kept vertically downward. At this time, lubricating oil 12 can be injected into the oil inlet 3 at the top of the oil reservoir 2. The lubricating oil 12 will flow along the inside of the oil reservoir 2 to the oil delivery chamber 13 of the connecting hose 4. Then, the lubricating oil 12 will flow downward along the oil guide rope 11 in the oil delivery chamber 13. When the lubricating oil 12 flows along the oil guide rope 11 to the oil seepage hole 14, it will seep out from the oil seepage hole 14 and flow downward along the outer wall of the connecting hose 4 until the lubricating oil 12 is absorbed by the sponge block 10 in the groove 17. When the sponge block 10 no longer absorbs the lubricating oil 12, the remaining lubricating oil 12 will continue to flow along the outer wall of the connecting hose 4. The lubricating oil 12 flows downwards until it is absorbed by all the sponge blocks 10 on the chain. Then, the injection of lubricating oil 12 into the oil reservoir 2 can be stopped. When the chain is suddenly tightened, the top of the second link 6 will quickly move towards the bottom of the first link 1 along the connecting hose 4. At this time, the pressure block 15 on the top of the inner side of the second link 6 will press against the top plate 8 at the bottom of the first link 1, and then contact the ball bearing 7 on the top plate 8. Then, it continues to move downwards, causing the bottom of the top plate 8 to squeeze the rubber spring 9, so that the rubber spring 9 is compressed. At the same time, the bottom of the rubber spring 9 will squeeze the sponge block 10, so that the lubricating oil 12 absorbed in the sponge block 10 is squeezed out, so that the connection of the chain link can be lubricated by the lubricating oil 12.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An anti-fatigue hoisting chain comprising a first link (1), characterized in that: The inner side of the first chain ring (1) is slidably connected with a second chain ring (6), the top end and the bottom end of the first chain ring (1) and the second chain ring (6) are provided with through holes (5), the inner side of the through hole (5) movably penetrates a connecting hose (4), the top end of the connecting hose (4) is fixedly connected with an oil storage cylinder (2), the inside of the oil storage cylinder (2) is filled with lubricating oil (12), the inside of the connecting hose (4) is provided with an oil conveying cavity (13), the inner side of the oil conveying cavity (13) is embedded with an oil guide rope (11), the bottom of the inner side of the first chain ring (1) is provided with a sponge block (10), the top of the sponge block (10) is provided with a rubber spring (9), the top end of the rubber spring (9) is fixedly connected with a top disc (8), the outer wall of the connecting hose (4) is provided with an oil seepage hole (14).

2. A fatigue-resistant hoist chain according to claim 1, characterized in that: The top end of the oil storage cylinder (2) is provided with an oil inlet (3), and the inside of the oil storage cylinder (2) is in communication with the oil conveying cavity (13) inside the connecting hose (4).

3. The fatigue-resistant hoist chain according to claim 1, characterized in that: The top end of the top disc (8) and the sponge block (10) is provided with a perforation (16), and the connecting hose (4) is movably inserted into the top disc (8) and the sponge block (10) through the perforation (16).

4. The fatigue-resistant hoist chain according to claim 1, characterized in that: The top end of the top disc (8) movably embeds a plurality of balls (7), and the top of the inner side of the second chain ring (6) is provided with a pressing block (15).

5. The fatigue-resistant hoist chain according to claim 1, characterized in that: The bottom end of the rubber spring (9) is attached to the bottom of the sponge block (10).

6. The fatigue-resistant hoist chain according to claim 1, characterized in that: The middle part of the bottom end of the inner side of the first chain ring (1) is provided with an embedding groove (17), and the sponge block (10) is embedded in the inside of the embedding groove (17).

7. The fatigue-resistant hoist chain according to claim 1, characterized in that: The oil seepage hole (14) is arranged on the outer wall of the intersection of the connecting hose (4) and the first chain ring (1) and the second chain ring (6), and the oil seepage hole (14) is slidably connected with the through hole (5).

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