Chain with tooth parts
By introducing positioning outer bars, reinforcing sleeves, and rolling components into the chain, and utilizing ball bearings to reduce friction, the friction problem between the chain plate and the shaft limiting components is solved, thereby improving the chain's service life and the stability of power transmission.
Patent Information
- Application Number
- CN202520224429.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-13
AI Technical Summary
In existing toothed chains, the friction between the chain plates and the shaft limiting components during transmission causes severe wear, affecting service life.
The design employs a positioning outer strip, a reinforced sleeve, and a rolling assembly. Friction is reduced through ball rolling connections, including the engagement of No. 1 and No. 2 balls with No. 1 chain plate, side connecting ring, and side rotating ring, respectively, to reduce friction. Furthermore, the bearings reduce the friction between the chain plate and the inner connecting shaft.
This reduces the friction between the chain plates and connecting links, improving the overall lifespan and stability of the chain and ensuring smooth power transmission.
Smart Images

Figure CN223794581U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chain technology, specifically a toothed chain. Background Technology
[0002] A chain is a continuous structure composed of a series of interconnected metal rings or links. It is commonly used to transmit mechanical power, traction, or suspension of objects. It is widely used in bicycles, mechanical equipment, lifting tools, and many other fields. Toothed chains usually refer to toothed chains, where each chain plate has a toothed structure. These teeth mesh with the sprockets during transmission. However, in existing toothed chains, friction is also generated between the chain plates and the axle limiting components during transmission, affecting the wear and overall service life of the chain. Utility Model Content
[0003] The purpose of this utility model is to provide a toothed chain to solve the problem mentioned in the background art that in the transmission process of existing toothed chains, friction is generated between the chain plate and the shaft limiting assembly, which affects the wear and overall service life of the chain.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a toothed chain, comprising:
[0005] Internal connecting shaft;
[0006] The first chain plate is symmetrically rotated and positioned on the outside of the inner connecting shaft;
[0007] The second chain plate is symmetrically rotated and positioned on the outside of the inner connecting shaft;
[0008] A reinforcing sleeve is provided on the outside of the inner connecting shaft.
[0009] Side connecting rings are symmetrically arranged at both ends of the reinforcing sleeve, and the side connecting rings are rotatably connected to the inner connecting shaft;
[0010] A rolling assembly is placed outside the side connecting ring and cooperates with the first chain plate.
[0011] The side rotating ring is symmetrically arranged on the outside of the inner connecting shaft. Multiple No. 1 connecting grooves are equally spaced on the inner side of the side rotating ring. No. 2 ball bearings are movably arranged inside the No. 1 connecting grooves, and the No. 2 ball bearings cooperate with the No. 2 chain plate.
[0012] As a preferred embodiment of the present invention: the rolling assembly includes an annular side groove, which is opened on the outside of the side connecting ring. Multiple second connecting grooves are equally spaced inside the annular side groove, and a first ball bearing that cooperates with the first chain plate is movably arranged inside the second connecting groove.
[0013] As a preferred embodiment of this utility model: multiple positioning outer strips are fixedly connected at equal intervals on the outer side of the inner connecting shaft, and multiple inner positioning grooves that cooperate with the positioning outer strips are opened at equal intervals on the inner side of the reinforcing sleeve.
[0014] As a preferred embodiment of this utility model: bearings that cooperate with the first chain plate and the second chain plate are symmetrically arranged on the outer side of the inner connecting shaft.
[0015] As a preferred embodiment of this utility model: a side limiting disc is fixedly connected to one side of the side rotating ring, and the side limiting disc is fixedly connected to the inner connecting shaft.
[0016] As a preferred embodiment of this utility model, the bottom of the first chain plate is fixedly connected with a toothed part.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model sets up a positioning outer strip, a reinforcing sleeve, and inner positioning grooves. The positioning outer strip cooperates with each inner positioning groove on the inner side of the reinforcing sleeve, and the reinforcing sleeve reinforces the inner connecting shaft on the outside of the inner connecting shaft. By setting up No. 1 ball and No. 2 ball, the connection between the No. 1 ball and the side connecting ring and the No. 1 chain plate is converted into a rolling connection of each No. 1 ball, which reduces the friction. The No. 2 ball reduces the friction between the No. 2 chain plate and the side rotating ring, thereby reducing the friction between each chain plate and the side connecting ring and the side rotating ring, and improving the overall service life of the chain. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the positioning outer strip and reinforcing sleeve structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the side rotating ring and the second ball bearing structure of this utility model.
[0021] In the diagram: 1. Chain plate No. 1; 2. Chain plate No. 2; 3. Inner connecting shaft; 4. Positioning outer strip; 5. Reinforcing sleeve; 6. Inner positioning groove; 7. Side connecting ring; 8. Annular side groove; 9. Ball bearing No. 1; 10. Bearing; 11. Side rotating ring; 12. Side limiting disc; 13. Ball bearing No. 2; 14. Toothed part. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1 to 3 This utility model provides a technical solution: a toothed chain, comprising: an inner connecting shaft 3; a first chain plate 1 symmetrically rotatably disposed on the outside of the inner connecting shaft 3; a second chain plate 2 symmetrically rotatably disposed on the outside of the inner connecting shaft 3; a reinforcing sleeve 5 disposed on the outside of the inner connecting shaft 3; side connecting rings 7 symmetrically fixed to both ends of the reinforcing sleeve 5, the side connecting rings 7 being rotatably connected to the inner connecting shaft 3; a rolling assembly disposed on the outside of the side connecting rings 7, the rolling assembly cooperating with the first chain plate 1; a side rotating ring 11 symmetrically fixed to the outside of the inner connecting shaft 3, the inner side of the side rotating ring 11 having multiple first connecting grooves equidistantly opened, the first connecting grooves having second ball bearings 13 movably disposed inside, the second ball bearings 13 cooperating with the second chain plate 2.
[0024] It is understood that this utility model improves the support stability of the inner connecting shaft 3 by setting the reinforcing sleeve 5 on the outside of the inner connecting shaft 3, and the positioning outer strip 4 on the outside of the inner connecting shaft 3 and the inner positioning grooves 6 on the inside of the reinforcing sleeve 5 for limiting cooperation. The first chain plate 1 and the second chain plate 2 rotate on the outside of the inner connecting shaft 3 through the bearing 10. When the first chain plate 1 rotates on the outside of the inner connecting shaft 3, the inner side of the first chain plate 1 contacts the first ball 9 and rolls on the inner side of the first chain plate 1. Multiple second balls 13 that cooperate with the second chain plate 2 are set on the inner side of the side rotating ring 11. The second balls 13 roll on the outside of the second chain plate 2, which greatly reduces the friction and improves the overall stability and life of the chain.
[0025] Please see Figures 1 to 3 The rolling assembly includes an annular side groove 8, which is opened on the outside of the side connecting ring 7. Multiple second connecting grooves are equally spaced inside the annular side groove 8, and a first ball 9 that cooperates with the first chain plate 1 is movably arranged inside the second connecting groove.
[0026] It is understandable that the first ball bearing 9 of this utility model is limited to rolling within the second connecting groove, which greatly reduces the friction between the first chain plate 1 and the side connecting ring 7, and the first ball bearing 9 is connected to one side of the first chain plate 1 by rolling.
[0027] Please see Figures 1 to 3 Multiple positioning outer strips 4 are fixed at equal intervals on the outer side of the inner connecting shaft 3, and multiple inner positioning grooves 6 that cooperate with the positioning outer strips 4 are opened at equal intervals on the inner side of the reinforcing sleeve 5.
[0028] It is understood that the positioning outer strip 4 on the outer side of the inner connecting shaft 3 of this utility model cooperates with the inner positioning groove 6 on the inner side of the reinforcing sleeve 5, and the outer side of the inner connecting shaft 3 is reinforced by the reinforcing sleeve 5, thereby improving the support stability of the inner connecting shaft 3.
[0029] Please see Figures 1 to 3 The outer side of the inner connecting shaft 3 is symmetrically provided with bearings 10 that cooperate with the first chain plate 1 and the second chain plate 2.
[0030] It is understood that this utility model reduces the rotational friction between the outer side of the inner connecting shaft 3 and the first chain plate 1 and the second chain plate 2 by means of the bearing 10.
[0031] Please see Figures 1 to 3 A side limiting disc 12 is fixedly connected to one side of the side rotating ring 11, and the side limiting disc 12 is fixedly connected to the inner connecting shaft 3.
[0032] It is understood that this utility model restricts the installation positions of the first chain plate 1 and the second chain plate 2 on the outer side of the inner connecting shaft 3 through the side limiting disc 12 and the side rotating ring 11.
[0033] Please see Figures 1 to 3 The bottom of the first chain plate 1 is fixed with a toothed part 14.
[0034] It is understood that the chain of this utility model can efficiently transmit driving force through the precise meshing of its toothed portion 14 with the gear. This meshing method ensures the smooth transmission of power and enables the driven component to rotate smoothly.
[0035] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are 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.
[0036] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.
[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] 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 toothed chain characterized by comprising: Include: Inner connecting shaft (3); No. 1 chain plate (1), the No. 1 chain plate (1) is symmetrically arranged on the outer side of the inner connecting shaft (3); No. 2 chain plate (2), the No. 2 chain plate (2) is symmetrically arranged on the outer side of the inner connecting shaft (3); Reinforcing sleeve (5), reinforcing sleeve (5) is arranged on the outer side of the inner connecting shaft (3); Side connecting ring (7), the side connecting ring (7) is symmetrically arranged at both ends of the reinforcing sleeve (5), and the side connecting ring (7) is rotatably connected with the inner connecting shaft (3); Rolling assembly, the rolling assembly is arranged on the outer side of the side connecting ring (7), and the rolling assembly is matched with the No. 1 chain plate (1); Side rotating ring (11), the side rotating ring (11) is symmetrically arranged on the outer side of the inner connecting shaft (3), a plurality of No. 1 connecting grooves are equidistantly arranged on the inner side of the side rotating ring (11), and the No. 1 connecting grooves movably arranged with No. 2 ball (13) inside, the No. 2 ball (13) is matched with the No. 2 chain plate (2).
2. A toothed chain according to claim 1, characterized in that: The rolling assembly includes annular side groove (8), the annular side groove (8) is arranged on the outer side of the side connecting ring (7), a plurality of No. 2 connecting grooves are equidistantly arranged in the annular side groove (8), and the No. 2 connecting grooves movably arranged with No. 1 ball (9) matched with the No. 1 chain plate (1) inside.
3. A toothed chain according to claim 1, characterized in that: The outer side of the inner connecting shaft (3) is equidistantly fixed with a plurality of positioning outer strips (4), and the inner side of the reinforcing sleeve (5) is equidistantly provided with a plurality of inner positioning grooves (6) matched with the positioning outer strips (4).
4. A toothed chain according to claim 1, characterized in that: The outer side of the inner connecting shaft (3) is symmetrically provided with a bearing (10) matched with the No. 1 chain plate (1) and the No. 2 chain plate (2).
5. A toothed chain according to claim 1, characterized in that: The side of the side rotating ring (11) is fixedly connected with a side limiting disc (12), and the side limiting disc (12) is fixedly connected with the inner connecting shaft (3).
6. A toothed chain according to claim 1, characterized in that: The bottom of the No. 1 chain plate (1) is fixedly connected with a toothed portion (14).