Step roller type chain structure convenient to disassemble

Abstract

The utility model relates to the technical field of chain structures, and discloses a step roller type chain structure convenient to disassemble, which comprises a front side outer chain connecting plate, a front side inner chain connecting plate, an internal support pin bush, a connecting pin shaft, a rear side inner chain connecting plate I and a rear side inner chain connecting plate II, a front side inner chain connecting plate and a first rear side inner chain connecting plate are connected to the side face of the inner supporting pin sleeve in a sliding mode, and a front side outer chain connecting plate and a second rear side inner chain connecting plate are connected to the outer side of the front side inner chain connecting plate and the outer side of the first rear side inner chain connecting plate in a sliding mode. The inner sides of the front side outer chain connecting plate, the front side inner chain connecting plate, the inner supporting pin sleeve, the first rear side inner chain connecting plate and the second rear side inner chain connecting plate are rotationally connected with connecting pin shafts. According to the step roller type chain structure, traditional limitation is broken through, a damaged part is convenient to disassemble and replace, the chain purchasing cost is saved, and the resource utilization rate is increased; the special design enables the chain to be uniformly stressed, prolongs the service life, and guarantees the stable operation of a mechanical transmission system.

Description

Technical Field

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

[0002] In the field of mechanical transmission, chains are widely used as an important transmission component. However, traditional chains face many problems during long-term use, which seriously affect the maintenance cost and operating efficiency of equipment.

[0003] During long-term transmission, chains must continuously withstand significant forces and frequent friction. In this process, chains are highly susceptible to damage, such as link wear and pin deformation. Once a part of the chain is damaged, disassembly is difficult due to design limitations of traditional chain structures. Typically, if the chain is difficult to disassemble, the entire chain must be replaced. This not only significantly increases maintenance costs due to the high purchase price of new chains, but also makes chain replacement cumbersome, requiring substantial manpower and time, severely impacting equipment operation convenience and reducing production efficiency. For companies with continuous production, this can even lead to production stoppages and greater economic losses. Therefore, we propose a step roller chain structure that facilitates disassembly. Utility Model Content

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a stepped roller chain structure that is easy to disassemble, thus solving the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] A disassembleable stepped roller chain structure includes a front outer chain connecting plate, a front inner chain connecting plate, an internal support pin sleeve, a connecting pin shaft, a rear inner chain connecting plate one, and a rear inner chain connecting plate two. The front inner chain connecting plate and the rear inner chain connecting plate one are slidably connected to the side of the internal support pin sleeve. The front outer chain connecting plate and the rear inner chain connecting plate two are slidably connected to the outer sides of the front inner chain connecting plate and the rear inner chain connecting plate one. The connecting pin shaft is rotatably connected to the inner sides of the front outer chain connecting plate, the front inner chain connecting plate, the internal support pin sleeve, the rear inner chain connecting plate one, and the rear inner chain connecting plate two. The structure also includes:

[0009] The stepped locking connection component is located on the outer side of the second inner chain connection plate at the rear, and is used for the extension support and protection of the connecting pin.

[0010] The rear locking and fixing component is located at the rear end of the connecting pin and is used for fixing and removing the chain.

[0011] Preferably, the front outer chain connecting plate, the front inner chain connecting plate, the rear inner chain connecting plate one, and the rear inner chain connecting plate two are provided with symmetrically distributed internal connecting holes. The inner side of each internal connecting hole is rotatably connected to a connecting pin, and the front end of the connecting pin is slidably connected to the front side of the front outer chain connecting plate for the overall installation of the chain.

[0012] Preferably, the stepped locking connection assembly includes a connecting pin, a first connecting step roller, and a second connecting step roller. The first connecting step roller and the second connecting step roller have internal connecting holes on their sides. The connecting pin is rotatably connected to the internal connecting holes. The first connecting step roller and the second connecting step roller are slidably connected to the rear side of the rear inner chain connecting plate 2, which is used to support and protect the extended part of the connecting pin.

[0013] Preferably, the cross-section of the first connecting step roller has a large diameter at the front and a small diameter at the rear, and the cross-section of the second connecting step roller has a small diameter at the front and a large diameter at the rear, which is used to connect the first connecting step roller and the second connecting step roller for mutual stepped sliding support.

[0014] Preferably, the rear-side locking and fixing assembly includes a rear-side connecting locking piece, and the rear-side connecting locking piece is slidably connected to the rear side of the connecting step roller one and the connecting step roller two. A connecting pin is rotatably connected to the inner side of the rear-side connecting locking piece, which is used to protect and lock the sides of the connecting step roller one and the connecting step roller two.

[0015] Preferably, the rear end of the connecting pin has a side pin hole, and a locking connecting ring is slidably connected to the inner side of the side pin hole to provide an installation position for the locking ring.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] A stepped roller chain structure that is easy to disassemble is provided, which has the following advantages:

[0019] This utility model features a conveniently disassembled stepped roller chain structure, breaking through the design limitations of traditional chains. When a part of the chain is damaged, its special structure allows for easy disassembly and replacement of the damaged section, eliminating the need for replacing the entire chain as with traditional chains. This significantly reduces chain maintenance costs for businesses, saves on new chain purchases, reduces unnecessary waste, and improves resource utilization. Furthermore, by incorporating complementary stepped rollers on the outer chain plate and employing a special design for the pins, the chain experiences more even force distribution during transmission. This not only reduces wear between chain components and extends the overall service life of the chain but also enhances its stability and reliability during transmission. The resulting smoother equipment operation reduces the risk of accidents caused by chain failures, providing strong support for the stable operation of the mechanical transmission system. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram showing the overall structure of this utility model disassembled;

[0022] Figure 3 This is a cross-sectional view of the overall structure of this utility model.

[0023] In the diagram: 1. Front outer chain connecting plate; 2. Front inner chain connecting plate; 3. Internal support pin sleeve; 4. Connecting pin shaft; 5. Rear inner chain connecting plate one; 6. Rear inner chain connecting plate two; 7. Connecting step roller one; 8. Connecting step roller two; 9. Side pin hole; 10. Internal through hole; 11. Rear connecting locking piece. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-3 This utility model provides a technical solution:

[0026] A stepped roller chain structure that is easy to disassemble includes a front outer chain connecting plate 1, a front inner chain connecting plate 2, an internal support pin sleeve 3, a connecting pin 4, a rear inner chain connecting plate one 5, and a rear inner chain connecting plate two 6. The front inner chain connecting plate 2 and the rear inner chain connecting plate one 5 are slidably connected to the side of the internal support pin sleeve 3. The front outer chain connecting plate 1 and the rear inner chain connecting plate two 6 are slidably connected to the outside of the front inner chain connecting plate 2 and the rear inner chain connecting plate one 5. The connecting pin 4 is rotatably connected to the inside of the front outer chain connecting plate 1, the front inner chain connecting plate 2, the internal support pin sleeve 3, the rear inner chain connecting plate one 5, and the rear inner chain connecting plate two 6. The structure also includes:

[0027] The stepped locking connection assembly is located on the outside of the rear inner chain connection plate 26 and is used to connect the extended support protection of the pin 4.

[0028] The rear locking and fixing component is located at the rear end of the connecting pin 4 and is used for fixing and removing the chain.

[0029] Furthermore, the front outer chain connecting plate 1, the front inner chain connecting plate 2, the rear inner chain connecting plate 1 5, and the rear inner chain connecting plate 2 6 are provided with symmetrically distributed internal connecting holes 10. The inner side of the internal connecting hole 10 is rotatably connected to the connecting pin 4, and the front end of the connecting pin 4 is slidably connected to the front side of the front outer chain connecting plate 1 for the overall installation of the chain.

[0030] Furthermore, the stepped locking connection assembly includes a connecting pin 4, a connecting stepped roller 1 7, and a connecting stepped roller 2 8. The sides of the connecting stepped roller 1 7 and the connecting stepped roller 2 8 are provided with internal connecting holes 10. The connecting pin 4 is rotatably connected to the internal connecting holes 10. The connecting stepped roller 1 7 and the connecting stepped roller 2 8 are slidably connected to the rear side of the rear inner chain connecting plate 2 6, which is used to support and protect the extended part of the connecting pin 4.

[0031] Furthermore, the cross-section of the connecting step roller 7 has a large diameter at the front and a small diameter at the rear, while the cross-section of the connecting step roller 8 has a small diameter at the front and a large diameter at the rear. This is used to connect the step roller 7 and the connecting step roller 8 to provide mutual stepped sliding support. Through the function of the stepped locking connection assembly, the support and protection of the extended connecting pin 4 are achieved.

[0032] Furthermore, the rear-side locking and fixing assembly includes a rear-side connecting locking piece 11. The rear-side connecting locking piece 11 is slidably connected to the rear side of the connecting step roller 1 7 and the connecting step roller 2 8. The inner side of the rear-side connecting locking piece 11 is rotatably connected to a connecting pin 4, which is used to protect and lock the sides of the connecting step roller 1 7 and the connecting step roller 2 8.

[0033] Furthermore, a side pin hole 9 is provided at the rear end of the connecting pin 4. A locking connecting ring is slidably connected to the inner side of the side pin hole 9 to provide an installation position for the locking ring. Through the action of the rear locking fixing component, the chain can be fixed and easily disassembled.

[0034] Structural Description:

[0035] Chain links: meticulously crafted from high-strength metal, with regular shape and precise dimensions. The connection structure at both ends can precisely align with adjacent chain links, and through the series connection of pins, a continuous transmission trajectory is constructed to stably bear and transmit power.

[0036] Pin: Forged from high-quality alloy steel with surface hardening treatment, it is a slender cylindrical shape with extremely small diameter tolerance. One end extends out of the stepped roller, and the radial through hole at the end makes it easy to insert tools, providing convenience for chain disassembly.

[0037] Stepped rollers: Made of wear-resistant materials, they have a unique stepped shape. The internal high-precision shaft holes and pins fit tightly together and are installed in pairs at the outer chain plate, effectively optimizing the chain force and reducing wear caused by friction.

[0038] Outer chain plate: Made of high-strength and tough metal sheet by stamping, with a smooth and flat surface. It has a precise stepped roller installation and positioning structure to firmly connect the components and ensure the stability of the chain structure.

[0039] Inner link plate: Works in conjunction with the outer link plate, using the same material and processing technology. It is alternately connected to the outer link plate through pins, together building the basic structure of the chain and working in perfect harmony during transmission.

[0040] Working Principle: When this invention is used, the complementary stepped rollers 3 located on the outer chain plate play a crucial role. Because the stepped rollers are tightly fitted onto the pins and can rotate flexibly, they roll along with the chain during its movement. This rolling action reduces frictional resistance between the chain and other contacting parts, significantly reducing energy loss during power transmission. Furthermore, the complementary stepped roller structure ensures more even force distribution on the chain during transmission. When the chain passes around the sprocket or moves along the guide rail, the stepped rollers can adapt to different force points and directions, effectively avoiding the problem of excessively rapid localized wear caused by uneven force distribution in traditional chains. This extends the overall service life of the chain. When a part of the chain is damaged and needs to be disassembled and replaced, the radially arranged through hole 4 at the end of the pin becomes a key structure. The repair personnel can insert a suitable pin into the through hole for fixation. This fixing method can limit unnecessary movement of the pin during the disassembly process and provide a stable foundation for the disassembly operation. After the pin is fixed, the repair personnel can use conventional tools to disassemble the chain. Compared with traditional chains, this structural design makes the disassembly process simpler and more convenient. The repair personnel do not need to disassemble the entire chain. They only need to operate on the chain link corresponding to the damaged part, separate the damaged chain link from the chain, and replace it with a new and intact chain link to complete the repair work, which greatly saves repair time and costs.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stepped roller chain structure that is easy to disassemble, comprising a front outer chain connecting plate (1), a front inner chain connecting plate (2), an internal support pin sleeve (3), a connecting pin shaft (4), a rear inner chain connecting plate one (5), and a rear inner chain connecting plate two (6), wherein the front inner chain connecting plate (2) and the rear inner chain connecting plate one (5) are slidably connected to the side of the internal support pin sleeve (3), the front outer chain connecting plate (1) and the rear inner chain connecting plate two (6) are slidably connected to the outer sides of the front inner chain connecting plate (2) and the rear inner chain connecting plate one (5), and the connecting pin shaft (4) is rotatably connected to the inner sides of the front outer chain connecting plate (1), the front inner chain connecting plate (2), the internal support pin sleeve (3), the rear inner chain connecting plate one (5), and the rear inner chain connecting plate two (6), characterized in that: Also includes: The stepped card position connection assembly is arranged on the outside of the rear inner chain connecting plate two (6), which is used to connect the extension support protection of the pin shaft (4); The rear side card position fixing assembly is arranged at the rear end of the connecting pin shaft (4), which is used for fixing and disassembling the chain.

2. The ladder roller chain structure according to claim 1, wherein: The front side outer chain connecting plate (1), the front side inner chain connecting plate (2), the rear side inner chain connecting plate one (5) and the rear side inner chain connecting plate two (6) are provided with symmetrically distributed internal communication holes (10), the inner side of the internal communication hole (10) is rotatably connected with the connecting pin shaft (4), and the front end of the connecting pin shaft (4) is slidably connected with the front side of the front side outer chain connecting plate (1), which is used for the installation of the chain as a whole.

3. The ladder roller chain structure of claim 1, wherein: The stepped card position connection assembly includes a connecting pin shaft (4), a connecting stepped roller one (7) and a connecting stepped roller two (8), the side surface of the connecting stepped roller one (7) and the connecting stepped roller two (8) is provided with an internal communication hole (10), the internal communication hole (10) is rotatably connected with the connecting pin shaft (4), and the rear side of the rear side inner chain connecting plate two (6) is slidably connected with the connecting stepped roller one (7) and the connecting stepped roller two (8), which is used for supporting and protecting the extension part of the connecting pin shaft (4).

4. The step-roll chain structure according to claim 3, wherein: The cross section of the connecting stepped roller one (7) presents a large diameter in front and a small diameter in back, and the cross section of the connecting stepped roller two (8) presents a small diameter in front and a large diameter in back, which is used for mutual stepped sliding support between the connecting stepped roller one (7) and the connecting stepped roller two (8).

5. A ladder roller chain structure according to claim 4, characterized in that: The rear side card position fixing assembly includes a rear side connecting card sheet (11), the rear side of the connecting stepped roller one (7) and the connecting stepped roller two (8) is slidably connected with the rear side connecting card sheet (11), the inner side of the rear side connecting card sheet (11) is rotatably connected with the connecting pin shaft (4), which is used for protecting and clamping the side surface of the connecting stepped roller one (7) and the connecting stepped roller two (8).

6. A ladder roller chain structure according to claim 5, wherein: The rear end of the connecting pin shaft (4) is provided with a side surface bolt hole (9), the inner side of the side surface bolt hole (9) is slidably connected with a clamping connecting ring, which is used for providing the installation position of the clamping ring.

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