Large-contact-surface D-shaped chain structure

Abstract

The utility model relates to the technical field of chain structures, in particular to a D-shaped chain structure with a large contact surface. Which comprises a chain body and is characterized in that the chain body is formed by connecting a plurality of chain rings in series in a crossed mode, a wear-resistant coating is arranged on the surface of each chain ring, each chain ring is formed by combining a straight handle section and an arc section, the cross section of each straight handle section is D-shaped, a ring groove is formed in the inner wall of each chain ring, and a wear-resistant assembly is arranged in each ring groove. The ring groove is formed in the inner wall of the chain ring of the chain, and the wear-resistant assembly such as the wear-resistant ring strip is embedded in the ring groove, so that the wear of the chain in the running process can be obviously reduced, the service life of the chain is prolonged, the silencing porous aluminum strips are arranged on the two sides of the wear-resistant ring strip, and the specific porosity design of the silencing porous aluminum strips is utilized. Noise generated during running of the chain can be effectively absorbed, and a quieter working environment is provided for an operator; the arc sections of the chain rings adopt the design of a plurality of concentric arcs, so that the contact area with the adjacent chain rings is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of chain structures, in particular to a D-type chain structure with a large contact surface. Background Art

[0002] As an important component widely used in mechanical transmission and conveying systems, the performance of the chain directly affects the efficiency and reliability of the entire system. Traditional chains have certain limitations in design and material selection, such as: Insufficient wear resistance: During long-term operation, the chain is prone to wear, especially under high load or high-speed conditions, the wear is more serious, affecting the service life of the chain; Noise problem: The noise generated by the chain during operation is relatively loud, which affects the operator's working environment and may also indicate excessive wear or impending failure; Poor structural stability: Under high load conditions, the chain may stretch or deform, affecting the accuracy and reliability of the transmission; Limited load-bearing capacity: The design of traditional chains may not fully consider the optimization of contact area and pressure distribution, resulting in limited load-bearing capacity of the chain under heavy load conditions.

[0003] A Chinese patent discloses a high wear-resistant carburized lifting chain (publication number: CN 209309225 U) includes a main ring chain and high-carbon steel bars, the bottom end of the inner ring of the main ring chain is movably connected to the secondary ring chain, the bottom end of the inner ring of the secondary ring chain is movably connected to the top end of the inner ring of another main ring chain, and a limit rod is fixedly installed in the middle of the left side of the secondary ring chain. The right end of the limit rod passes through the left side of the secondary ring chain and extends to the outside of the secondary ring chain and is fixedly connected to the limit buckle. The left end of the limit rod is fixedly connected to the right side of another limit buckle. However, this chain has insufficient wear resistance: during long-term operation, the chain is prone to wear, especially under high load or high-speed operation conditions, the wear is more serious, affecting the service life of the chain; the chain generates large noise during operation, which affects the operator's working environment, and may also indicate excessive wear or imminent failure; limited load-bearing capacity: the design of traditional chains may not fully consider the optimization of contact area and pressure distribution, resulting in problems such as limited load-bearing capacity of the chain under heavy load conditions. Therefore, a large contact surface D-type chain structure is required. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art, such as the insufficient wear resistance of the existing chain: during long-term operation, the chain is prone to wear, especially under high load or high-speed operation conditions, the wear is more serious, affecting the service life of the chain; the noise generated by the chain during operation is relatively large, which affects the operator's working environment and may also indicate excessive wear or imminent failure; limited carrying capacity: the design of traditional chains may not fully consider the optimization of contact area and pressure distribution, resulting in limited carrying capacity of the chain under heavy load conditions and other shortcomings, and a large contact surface D-type chain structure is proposed.

[0005] The technical solution adopted by the present invention to solve its technical problems is: the utility model describes a large contact surface D-type chain structure, including a chain body, characterized in that: the chain body is composed of a plurality of chain links cross-connected in series, the chain link surface is provided with a wear-resistant coating, the chain link is composed of a straight shank segment and a circular arc segment, the straight shank segment cross-section is a D-shaped cross-section, the inner wall of the chain link is provided with a ring groove, and the ring groove is provided with a wear-resistant component. The D-shaped structure enhances the strength and stability of the chain, reduces the swing of the chain during operation, and improves the transmission efficiency. The wear-resistant component in the ring groove reduces the direct friction between the chain links and extends the service life of the chain.

[0006] Preferably, the wear-resistant assembly includes wear-resistant rings embedded in ring grooves and integrated with the chain links. Sound-absorbing porous aluminum strips are installed on both sides of the wear-resistant rings, fixed to the wear-resistant rings by an embedded method, and the porosity of the sound-absorbing porous aluminum strips is 40%-60%. The wear-resistant rings improve the wear resistance of the chain, while the sound-absorbing porous aluminum strips effectively reduce operating noise and enhance the comfort of the user environment. The integrated design ensures the stability of the assembly and reduces maintenance requirements.

[0007] Preferably, a reinforcement snap ring is provided on the straight shank section, which strengthens the overall structure of the chain, especially under high load conditions, reduces the elongation and deformation of the chain, thereby extending the service life and improving the reliability of the transmission.

[0008] Preferably, the arc segments of the chain links are composed of multiple concentric arcs. This design increases the contact area between the chain links, reduces the contact pressure, thereby reducing wear and improving the load-bearing capacity of the chain. At the same time, the concentric arc structure also contributes to the stability of the chain during operation.

[0009] Preferably, the chain links are made of high-strength alloy steel. High-strength alloy steel enables the chain to withstand higher workloads, has good impact resistance and fatigue resistance, is suitable for harsh working conditions, and extends the service life of the chain.

[0010] Preferably, the thickness of the wear-resistant ring strip slightly protrudes from the inner wall of the chain ring, and a buffer gap is provided between the wear-resistant ring strip and the sound-absorbing porous aluminum strip. This design can provide a certain elasticity during the operation of the chain, reduce vibration and noise, while maintaining the high strength and wear resistance of the chain, and improving the overall performance.

[0011] The utility model is beneficial in that:

[0012] The utility model provides annular grooves on the inner walls of the chain links and embeds wear-resistant components, such as wear-resistant rings, to significantly reduce chain wear during operation, thereby extending the service life of the chain. Sound-absorbing porous aluminum strips are installed on both sides of the wear-resistant rings. Their specific porosity design can effectively absorb the noise generated by the chain operation, providing a quieter working environment for the operator. A reinforcement clamp is added to the straight shank section to provide additional support for the chain, enhance the structural stability of the chain under high load conditions, and reduce the risk of failure due to elongation or deformation. The arc section of the chain link adopts a multiple concentric arc design, which increases the contact area with adjacent chain links and reduces the contact pressure, thereby reducing wear and improving the load-bearing capacity of the chain. The chain link is made of high-strength alloy steel, which enables the chain to adapt to more harsh working conditions, has good impact resistance and fatigue resistance, and is suitable for heavy-load and high-speed transmission systems. The design of the wear-resistant ring makes it slightly protrude from the inner wall of the chain link, and a buffer gap is provided between it and the sound-absorbing porous aluminum strip, which provides a certain degree of elasticity for chain operation and helps to reduce vibration and noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a schematic structural diagram of the utility model.

[0015] Figure 2 This is a structural schematic diagram of the utility model from another perspective.

[0016] Figure 3 For this utility model Figure 2 Enlarged view of I in the middle.

[0017] Figure 4 It is a schematic diagram of the top structure of the utility model.

[0018] Figure 5 For this utility model Figure 4 Cross-sectional view of AA in the figure.

[0019] In the figure: 1. Chain body; 2. Reinforcement clasp; 3. Chain link; 4. Straight shank section; 5. Arc section; 6. D-shaped cross section; 7. Wear-resistant ring; 8. Buffer gap; 9. Sound-absorbing porous aluminum strip. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example

[0022] See also Figure 1-5 As shown, a D-type chain structure with a large contact surface includes a chain body 1, characterized in that: the chain body 1 is composed of a plurality of chain links 3 cross-connected in series, the surface of the chain link 3 is provided with a wear-resistant coating, the chain link 3 is composed of a straight shank section 4 and an arc section 5, the cross section of the straight shank section 4 is a D-shaped cross section 6, the inner wall of the chain link 3 is provided with a ring groove, and the ring groove is provided with a wear-resistant component. The D-shaped structure enhances the strength and stability of the chain, reduces the swing of the chain during operation, and improves the transmission efficiency. The wear-resistant component in the ring groove reduces the direct friction between the chain links 3 and extends the service life of the chain.

[0023] In this embodiment, the wear-resistant assembly includes a wear-resistant ring strip 7, which is embedded in a ring groove and integrally formed with the chain link 3. Sound-absorbing porous aluminum strips 9 are provided on both sides of the wear-resistant ring strip 7. The sound-absorbing porous aluminum strips 9 are common products on the market and can be purchased directly. This type of material is made of metal or alloy powder through a forming and sintering process. It has a large number of internal pores, can absorb energy and act as a buffer. The sound-absorbing porous aluminum strips 9 are fixed to both sides of the wear-resistant ring strip 7 by embedding, and the porosity of the sound-absorbing porous aluminum strips 9 is 40%-60%. The wear-resistant ring strip 7 improves the wear resistance of the chain, while the sound-absorbing porous aluminum strips 9 effectively reduce operating noise and improve the comfort of the use environment. The integrated design ensures the stability of the component and reduces maintenance requirements.

[0024] In this embodiment, a reinforcing snap ring 2 is provided on the straight shank section 4, and the reinforcing snap ring 2 is fixed to the straight shank section 4 by welding or screwing. The reinforcing snap ring 2 strengthens the overall structure of the chain, especially under high load conditions, reduces the elongation and deformation of the chain, thereby extending the service life and improving the reliability of the transmission.

[0025] In this embodiment, the arc segments 5 of the chain links 3 are formed of multiple concentric arcs. This design increases the contact area between the chain links 3, reduces contact pressure, thereby reducing wear and improving the load-bearing capacity of the chain. Furthermore, the concentric arc structure also contributes to the stability of the chain during operation.

[0026] In this embodiment, the chain link 3 is made of high-strength alloy steel material. The high-strength alloy steel is a common material on the market and can be purchased directly. The high-strength alloy steel material enables the chain to withstand a higher workload, has good impact resistance and fatigue resistance, is suitable for harsh working conditions, and extends the service life of the chain.

[0027] In this embodiment, the thickness of the wear-resistant ring strip 7 slightly protrudes from the inner wall of the chain ring 3, and a buffer gap 8 is provided between the wear-resistant ring strip 7 and the sound-absorbing porous aluminum strip 9. This design can provide a certain elasticity during the operation of the chain, reduce vibration and noise, while maintaining the high strength and wear resistance of the chain, and improving the overall performance.

[0028] The implementation principle of this embodiment is as follows: first, the chain is composed of a plurality of chain links 3, each chain link 3 includes a straight shank section 4 and an arc section 5, and these chain links 3 are cross-connected in series to form a complete chain. The straight shank section 4 is designed with a D-shaped cross section 6, which helps to reduce friction between chains and increase the strength of the chain links 3, thereby improving transmission efficiency. A reinforcing snap ring 2 is added to the straight shank section 4 to prevent the chain from stretching or deforming under high load. The wear-resistant ring strip 7 directly bears friction during the operation of the chain and protects the chain link 3 from wear; sound-absorbing porous aluminum strips 9 are installed on both sides of the wear-resistant ring strip 7, which reduce the noise level of the chain during operation by absorbing and dispersing noise. At the same time, the thickness of the wear-resistant ring strip 7 slightly protrudes from the inner wall of the chain link 3, and there is a certain buffer gap 8 between the wear-resistant ring strip 7 and the sound-absorbing porous aluminum strip 9, which provides a certain elasticity for the chain operation and reduces vibration and noise.

[0029] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A D-shaped chain structure with a large contact surface, comprising a chain body (1), characterized in that: The chain body (1) is composed of a plurality of chain links (3) connected in series, the surface of the chain link (3) is provided with a wear-resistant coating, the chain link (3) is composed of a straight shank section (4) and a circular arc section (5), the cross section of the straight shank section (4) is a D-shaped cross section (6), the inner wall of the chain link (3) is provided with an annular groove, and the wear-resistant component is provided in the annular groove.

2. A D-shaped chain structure with a large contact surface according to claim 1, characterized in that: The wear-resistant assembly comprises a wear-resistant ring strip (7), the wear-resistant ring strip (7) is embedded in the ring groove and is integrally formed with the chain ring (3), and sound-absorbing porous aluminum strips (9) are provided on both sides of the wear-resistant ring strip (7), the sound-absorbing porous aluminum strips (9) are fixed to both sides of the wear-resistant ring strip (7) by embedding, and the porosity of the sound-absorbing porous aluminum strips (9) is 40%-60%.

3. The D-shaped chain structure with a large contact surface according to claim 1, characterized in that: A reinforcing clamping ring (2) is provided on the straight shank section (4).

4. The large contact surface D-shaped chain structure according to claim 1, characterized in that: The arc segment (5) of the chain link (3) is composed of a plurality of concentric arcs.

5. The D-shaped chain structure with a large contact surface according to claim 1, characterized in that: The chain ring (3) is made of high-strength alloy steel.

6. The D-shaped chain structure with a large contact surface according to claim 2, characterized in that: The thickness of the wear-resistant ring strip (7) protrudes from the inner wall of the chain ring (3), and a buffer gap (8) is provided between the wear-resistant ring strip (7) and the sound-absorbing porous aluminum strip (9).

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