Quick-mounting modular high-precision pintle chain
By setting up a sealing mechanism on the outer surface of the pin shaft, the problem of unsealed pin joint chain connection is solved, and the friction loss and lubrication effect are reduced, and the component life is extended.
Patent Information
- Application Number
- CN202510654405.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2025-08-19
AI Technical Summary
The traditional pin joint chain connection cannot be effectively sealed, and small particulate matter is easily mixed, affecting the life of the component.
A sealing mechanism is provided on the outer surface of the pin shaft. The sealing mechanism consists of two sealing rings and an elastic reset unit. There are oil storage cotton and oil outlet holes between the sealing rings. The sliding friction is transformed into rolling friction by connecting the balls, and lubricating oil is released when the chain links are squeezed.
Reduce friction loss, extend component life, and maintain sealing and protection through lubricating oil.
Smart Images

Figure CN120506459A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of chain equipment, in particular to a quick-install modular high-precision pinned chain. Background Art
[0002] A pin chain is a mechanical transmission device that uses pins to connect chain links to achieve power transmission or material transportation. Its structural components mainly include chain links, pins, and accessories. Chain links are the basic units of a pin chain and are usually made of malleable cast iron or high-quality steel. They have specific shapes and sizes. The design of the chain links must take into account their load-bearing capacity and wear resistance to ensure that the chain maintains stable performance during long-term use. The chain links are connected by pins to form a continuous chain structure.
[0003] The traditional pin-and-chain connection method cannot be effectively sealed, and small particles are easily trapped, which affects the overall life of the component for a long time. Summary of the Invention
[0004] (1) Technical problems solved In response to the shortcomings of the existing technology, the present invention provides a quick-install modular high-precision pin chain, which solves the problem that the connection method between traditional pin chains cannot be effectively sealed, and small particles are easily included, which affects the overall life of the components for a long time.
[0005] (2) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: a quick-install modular high-precision pinned chain, including chain links and pins, two adjacent chain links are connected by a pin, and a sealing mechanism is provided at the position where the two chain links are connected by the pin. The sealing mechanism is arranged around the outer surface of the pin, and a single sealing mechanism includes two sealing rings. The two sealing rings in a single sealing mechanism are connected by multiple elastic reset units, and oil storage cotton is provided between the two sealing rings in a single sealing mechanism.
[0006] Preferably, the side walls of the two sealing rings in a single sealing mechanism away from the elastic reset unit are both rotatably engaged with a plurality of connecting balls.
[0007] Preferably, the two sealing rings in a single sealing mechanism are each provided with a plurality of oil outlet holes.
[0008] Working principle: During use, when relative movement occurs between two adjacent chain links, the connecting balls that are clamped between the sealing ring and the side walls of the two chain links will convert the original sliding friction of the two components into rolling friction, which can reduce the friction loss between the two components and increase the life of the components. In the working state, when the two chain links are squeezed, the lubricating oil stored in the oil storage cotton will be released to lubricate the chain links, and the presence of the elastic reset element can not only keep the oil storage cotton reset, but also maintain the sealing, playing a protective role.
[0009] (3) Beneficial effects The present invention provides a quick-assembly modular high-precision pin-jointed chain. It has the following beneficial effects: 1. This quick-install modular high-precision pin-jointed chain, when relative motion occurs between two adjacent chain links, the connecting balls that engage the sealing ring with the adjacent side walls of the two chain links will convert the original sliding friction of the two components into rolling friction, which can reduce the friction loss between the two components and increase the service life of the components.
[0010] 2. In the working state, when the two chain links are squeezed, the lubricating oil stored in the oil storage cotton will be released to lubricate the chain links. The presence of the elastic reset element can not only keep the oil storage cotton reset, but also maintain the sealing, thus playing a protective role. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A top view of the sealing ring of the present invention; Figure 3 Schematic diagram of the connection relationship between the elastic reset element and the sealing ring of the present invention.
[0012] Among them, 1. Chain link; 2. Pin shaft; 3. Sealing ring; 4. Elastic reset element; 5. Oil outlet hole; 6. Connecting ball; 7. Oil storage cotton. DETAILED DESCRIPTION
[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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. Example
[0014] like Figure 1-3As shown, an embodiment of the present invention provides a quick-install modular high-precision pin chain, including a chain link 1 and a pin 2, where two adjacent chain links 1 are connected by the pin 2, and a sealing mechanism is provided at the position where the two chain links 1 are connected by the pin 2. The sealing mechanism is arranged around the outer surface of the pin 2, and a single sealing mechanism includes two sealing rings 3. The two sealing rings 3 in the single sealing mechanism are connected by multiple elastic reset units 4, and oil storage cotton 7 is provided between the two sealing rings 3 in the single sealing mechanism.
[0015] The side walls of the two sealing rings 3 in the single sealing mechanism away from the elastic reset unit 4 are both rotatably clamped with multiple connecting balls 6; the two sealing rings 3 in the single sealing mechanism are both provided with multiple oil outlet holes 5.
[0016] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A quick-assembly modular high-precision pinned chain, comprising a chain link (1) and a pin (2), characterized in that: Two adjacent chain links (1) are connected by a pin (2), and a sealing mechanism is provided at the position where the two chain links (1) are connected by the pin (2). The sealing mechanism is arranged around the outer surface of the pin (2), and a single sealing mechanism includes two sealing rings (3). The two sealing rings (3) in a single sealing mechanism are connected by a plurality of elastic reset units (4), and an oil storage cotton (7) is provided between the two sealing rings (3) in a single sealing mechanism.
2. A quick-assembly modular high-precision pin-jointed chain according to claim 1, characterized in that: The side walls of the two sealing rings (3) in a single sealing mechanism, which are away from the elastic reset unit (4), are both rotatably engaged with a plurality of connecting balls (6).
3. The quick-assembly modular high-precision pin-jointed chain according to claim 1, characterized in that: Both sealing rings (3) in a single sealing mechanism are provided with a plurality of oil outlet holes (5).