An eccentric angle compact chain

Abstract

This invention discloses an eccentric angle compact chain, including an inner chain link. Both ends of the inner chain link are detachably fitted with fixing components. Both ends of the inner chain link are movably sleeved with outer chain links. The number of inner and outer chain links is several, and these links are staggered. Each inner chain link includes an inner support block, with sleeve holes at both ends. Fixing components are detachably installed inside the sleeve holes. This design allows for easy disassembly and assembly at chain nodes without the need for welding or cutting. The eccentric angle formed by the inner chain link and the fixing components at both ends allows for a closer fit between the sprocket and the chain, increasing the contact area and effectively enhancing the sprocket's ability to drive the chain. This reduces chain wear, extends chain life, and accommodates positional differences between the two sprockets, preventing sprocket detachment during transmission and ensuring more stable transmission.

Description

Technical Field

[0001] This invention relates to the field of chain technology, and more specifically, to an eccentric angle compact chain. Background Technology

[0002] Compact chains are used as transmission chains to drive scraper conveyors in underground coal mining. These scraper conveyors or chain scraper conveyors can consist of two motor-driven annular transmission chains. Scrapers connected to the chains are fixed on the transmission chains, and the scrapers transport the stripped material, such as coal. As scraper conveyors adopt higher-power drive devices, the load requirements on the transmission chain also increase. Under certain operating conditions, excessive accumulation of stripped material is not conducive to the smooth transmission of the transmission chain.

[0003] To solve the above problems, CN115744070A, eccentric angle compact chain, the eccentric angle compact chain includes a long chain structure in which welded flat rings with circular cross sections are arranged at intervals and connected by an eccentric angle forged vertical ring, the eccentric angle vertical ring is that the pitch center line forms an angle with the straight arm.

[0004] The aforementioned device makes chain transmission smoother by increasing chain vibration. However, due to the chain vibration, not only does it increase the wear of the chain and the middle plate in the scraper conveyor, but it also generates more noise, affecting the surrounding working environment. Furthermore, although the existing compact chain has a simple structure, it is not convenient to extend or disassemble. When extending, it usually requires the use of large equipment or welding, which makes it difficult to adjust the corresponding length according to the scenario, thus having significant limitations.

[0005] Therefore, based on years of experience in design, development, and manufacturing in this industry, the inventor has researched and improved upon existing structures and shortcomings, providing an eccentric angle compact chain. This chain allows for easier disassembly and assembly at chain nodes without the need for welding or cutting. The eccentric angle formed by the inner chain link and the fixing components at both ends creates a closer fit between the sprocket and the chain, increasing the contact area and effectively enhancing the transmission of the chain. This reduces chain wear, extends chain life, accommodates the positional difference between the two sprockets, and prevents the sprocket from detaching from the chain during transmission, resulting in more stable transmission. Summary of the Invention

[0006] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide an eccentric angle compact chain. The chain nodes are disassembled and installed without the need for welding, cutting, or other methods, making disassembly and assembly convenient. The shape of the inner chain link and the fixing components at both ends create an eccentric angle, allowing the sprocket and chain to fit more closely, thereby increasing the contact area between the sprocket and the chain. This effectively increases the transmission capacity of the sprocket driving the chain, reduces chain wear, extends chain life, adapts to the positional difference between the two sprockets, and prevents the sprocket from detaching from the chain during transmission, resulting in more stable transmission and solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an eccentric angle compact chain, comprising an inner link, both ends of which are detachably fitted with fixing components, and both ends of the inner link are movably sleeved with outer link, the number of inner and outer link links being several, and the several inner and outer link links being staggered, the inner link including an inner support block, both ends of which have sleeve holes, the inside of which a fixing component is detachably installed, the fixing component including a fixing shaft, both ends of which have fixing holes, the inside of which a snap-fit ​​block is detachably installed, a positioning block is fixedly installed on the side of the snap-fit ​​block, expansion grooves are formed on all four sides of the snap-fit ​​block, an insert rod is movably sleeved inside the snap-fit ​​block, and a limit head is fixedly installed on the side of the insert rod.

[0008] In a preferred embodiment, the inner support block has an arc shape, and one end of the socket and the other end of the socket form an eccentric angle in the horizontal direction.

[0009] In a preferred embodiment, the insert rod is frustum-shaped, and the diameter of the end of the insert rod away from the limiting head is larger than the diameter of the other end of the insert rod.

[0010] In a preferred embodiment, the interior of the snap-fit ​​block is frustum-shaped, the snap-fit ​​block is made of elastic metal, and the diameter of the end of the snap-fit ​​block away from the positioning block is smaller than the diameter of the other end of the snap-fit ​​block.

[0011] In a preferred embodiment, the fixed shaft is located at both ends of the inner support block, the snap-fit ​​block is movably sleeved inside the sleeve hole, the snap-fit ​​block is embedded inside the fixed hole, and the positioning block is embedded on the side of the inner support block.

[0012] In a preferred embodiment, the insert rod is fitted inside the snap-fit ​​block, and a groove is formed between the limiting head and the positioning block.

[0013] In a preferred embodiment, the outer link includes an outer ring frame, the interior of which is formed with a movable groove, and the number of outer link is two.

[0014] In a preferred embodiment, the two outer ring frames are respectively movably sleeved on the outer surface of one end of the inner support block, and the movable groove is movably sleeved on the outer surface of the insert rod at one end of the inner support block and is located between the limiting head and the positioning block.

[0015] The technical effects and advantages of this invention are as follows:

[0016] 1. This invention sets an insert rod to be inserted into the inside of the snap-fit ​​block, and causes the snap-fit ​​block to expand inside the fixing hole, so that the snap-fit ​​block and the positioning block are fixed on the side of the fixing shaft. At the same time, the limiting head limits the outer chain link, connecting the inner chain link and the outer chain link, so that the chain node can be disassembled and installed without the need for welding, cutting or other methods, making disassembly and assembly convenient.

[0017] 2. By setting the shape of the inner chain link and the fixing components at both ends to form an eccentric angle, the sprocket and the chain fit more closely, thereby increasing the contact area between the sprocket and the chain, effectively increasing the transmission of the sprocket to drive the chain, reducing chain wear, and extending the chain's lifespan.

[0018] 3. By setting an movable groove inside the outer ring frame, the interlocking rods at both ends can move freely inside the movable groove. When the positions of the sprockets at both ends are slightly off, the inner chain rings at both ends will form corresponding angles between the outer chain rings. At this time, the outer chain rings will shift to adapt to the position difference of the sprockets at both ends, thus avoiding the situation where the sprockets and chains fall off during transmission, making the transmission more stable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the outer chain ring structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the overall structure of the inner chain ring of the present invention.

[0022] Figure 4 This is an exploded structural diagram of the inner chain ring and fixing component of the present invention.

[0023] Figure 5 This is a diagram showing the offset working state of the inner and outer chain rings of the present invention.

[0024] The attached diagram is labeled as follows: 1. Inner chain link; 2. Outer chain link; 3. Fixing component; 11. Inner support block; 12. Sleeve hole; 21. Outer ring frame; 22. Movable groove; 31. Fixing shaft; 32. Fixing hole; 33. Positioning block; 34. Snap-fit ​​block; 35. Expansion groove; 36. Inserting rod; 37. Limiting head. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] As attached Figure 1-5 The eccentric compact chain shown includes an inner link 1. Both ends of the inner link 1 are detachably fitted with fixing components 3. Both ends of the inner link 1 are movably sleeved with outer link 2. There are several inner link 1s and outer link 2s, arranged alternately. The inner link 1 includes an inner support block 11. Both ends of the inner support block 11 have sleeve holes 12. The fixing components 3 are detachably installed inside the sleeve holes 12. The fixing components 3 include a fixing shaft 31. Both ends of the fixing shaft 31 have fixing holes 32. A snap-fit ​​block 34 is detachably installed inside the fixing holes 32. A positioning block 33 is fixedly installed on the side of the snap-fit ​​block 34. Expansion grooves 35 are formed on all four sides of the snap-fit ​​block 34. An insert rod 36 is movably sleeved inside the snap-fit ​​block 34. A limit head 37 is fixedly installed on the side of the insert rod 36.

[0027] The inner support block 11 has an arc shape, and one end of the socket 12 and the other end of the socket 12 form an eccentric angle in the horizontal direction.

[0028] The insert rod 36 is shaped like a frustum, and the diameter of the end of the insert rod 36 away from the limiting head 37 is larger than the diameter of the other end of the insert rod 36.

[0029] The interior of the snap-fit ​​block 34 is frustum-shaped and made of elastic metal. The diameter of the inner end of the snap-fit ​​block 34 away from the positioning block 33 is smaller than that of the inner end of the snap-fit ​​block 34.

[0030] Among them, the fixed shaft 31 is located at both ends of the inner support block 11, the snap-fit ​​block 34 is movably sleeved inside the sleeve hole 12, the snap-fit ​​block 34 is embedded in the inside of the fixed hole 32, and the positioning block 33 is embedded in the side of the inner support block 11.

[0031] The insert rod 36 is inserted into the inside of the snap-fit ​​block 34, and a groove is formed between the limiting head 37 and the positioning block 33.

[0032] The outer link 2 includes an outer ring frame 21, and the inner part of the outer ring frame 21 has a movable groove 22. There are two outer link rings 2.

[0033] Among them, the two outer ring frames 21 are movably sleeved on the outer surface of one end of the inner support block 11, and the movable groove 22 is movably sleeved on the outer surface of the insert rod 36 at one end of the inner support block 11, and is located between the limiting head 37 and the positioning block 33.

[0034] Working principle of this invention: Figures 1 to 3 As shown, during use, when the scraper conveyor drives the compact chain to rotate, because the inner chain link 1 is set to a corresponding arc shape, the sprocket of the scraper conveyor drives the chain to rotate. Through the eccentric angle formed by the shape of the inner chain link 1 and the fixing components 3 at both ends, the shape of the sprocket and the chain fits more closely, thereby increasing the contact area between the sprocket and the chain.

[0035] like Figures 2 to 4 As shown, when the chain is damaged or loosened after prolonged use, a chisel is placed on the side of the limiting head 37, and the chisel is struck with a hammer to move the inserting rod 36 out of the locking block 34. The expansion groove 35 contracts, separating the fixed shaft 31 from the inserting rod 36 and the outer ring frame 21, thereby separating one end of the inner chain link 1 from one end of the outer chain link 2. During installation, the locking block 34 is first inserted into the fixing holes 32 at both ends of the fixed shaft 31. Then, the fixed shaft 31 is placed on the side of the sleeve hole 12 of the inner support block 11, and the inserting rod... 36 is fitted inside the movable groove 22 of the outer ring frame 21. The insert rod 36 is inserted into the inside of the snap block 34 through the sleeve hole 12. Then, the side of the limiting head 37 is struck by the hammer to make the insert rod 36 fit into the inside of the snap block 34 and the snap block 34 expands inside the fixing hole 32, so that the snap block 34 and the positioning block 33 are fixed on the side of the fixing shaft 31. At the same time, the limiting head 37 limits the outer chain ring 2, connecting the inner chain ring 1 and the outer chain ring 2, so that the node of the chain can be disassembled.

[0036] Depend on Figure 5 As shown, due to the movable groove 22 inside the outer ring frame 21, the insert rods 36 at both ends can move freely inside the movable groove 22. When the positions of the sprockets at both ends are slightly off, the inner chain rings 1 at both ends will form corresponding angles between the outer chain rings 2. At this time, the outer chain rings 2 will shift to adapt to the position difference of the sprockets at both ends, thus avoiding the situation where the sprockets and chains fall off during transmission.

[0037] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0038] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0039] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An eccentric angle compact chain comprising inner links (1), characterized in that, The inner chain ring (1) is detachably mounted with a fixing assembly (3) at both ends, the outer chain ring (2) is movably sleeved at both ends of the inner chain ring (1), the number of the inner chain ring (1) and the outer chain ring (2) is several, and the several inner chain rings (1) and the several outer chain rings (2) are staggered. The inner chain ring (1) comprises an inner supporting block (11), both ends of the inner supporting block (11) are provided with a sleeving hole (12), and the sleeving hole (12) is detachably mounted with a fixing assembly (3). The fixing assembly (3) comprises a fixing shaft (31), both ends of the fixing shaft (31) are provided with a fixing hole (32), the fixing hole (32) is detachably mounted with a clamping block (34), the side of the clamping block (34) is fixedly installed with a positioning block (33), the four sides of the clamping block (34) are provided with an expansion groove (35), and the inner side of the clamping block (34) is movably sleeved with an embedded connecting rod (36). The fixing shaft (31) is located at both ends of the inner supporting block (11), the clamping block (34) is movably sleeved in the sleeving hole (12), the clamping block (34) is embeddedly installed in the fixing hole (32), and the positioning block (33) is embeddedly installed on the side of the inner supporting block (11). The embedded connecting rod (36) is embeddedly installed in the clamping block (34), and a groove is formed between the limiting head (37) and the positioning block (33). The outer chain ring (2) comprises an outer ring frame (21), and the inner side of the outer ring frame (21) is formed with a movable groove (22). Both ends of the outer ring frame (21) are movably sleeved on the outer surface of the inner supporting block (11), the movable groove (22) is movably sleeved on the outer surface of the embedded connecting rod (36) at one end of the inner supporting block (11) and located between the limiting head (37) and the positioning block (33).

2. A compact offset angle chain according to claim 1, characterized in that: The shape of the inner supporting block (11) is arc-shaped, and the sleeving holes (12) at both ends are eccentrically arranged in the horizontal direction.

3. A compact offset angle chain as claimed in claim 2, characterized in that: The shape of the embedded connecting rod (36) is a circular truncated cone, and the diameter of one end of the embedded connecting rod (36) is greater than that of the other end.

4. A compact offset angle chain according to claim 3, wherein: The inner side of the clamping block (34) is a circular truncated cone, the material of the clamping block (34) is elastic metal, and the diameter of one end of the clamping block (34) is smaller than that of the other end.

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