Novel high-strength gear for transmission shaft
By combining gear modules and lubrication belts, the problem of uneven lubrication in traditional gears is solved, achieving uniform lubrication of gear teeth and improving structural strength, thus extending the service life of gears.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RENQIU HONGJI GEAR FORGING CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional gear lubrication methods for drive shafts are difficult to cover all gear teeth, leading to overheating and wear of some teeth due to friction. At the same time, excessive lubricating oil can easily affect the equipment environment.
The design employs two combined gear modules and a lubricating belt. The lubricating belt is embedded in the groove between the modules and has multiple micropores to absorb lubricating oil and provide continuous lubrication during transmission. Combined with a central reinforcing platform and reinforcing ribs, the overall strength is improved.
It achieves uniform lubrication of gear teeth, reduces overheating and wear, improves gear service life, and enhances the overall structural strength.
Smart Images

Figure CN224201065U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gear technology, specifically to a new type of high-strength transmission shaft gear. Background Technology
[0002] Gears are mechanical components with teeth on their rims that can continuously mesh to transmit motion and power; they are a common type of mechanical transmission part.
[0003] Traditional drive shaft gears typically employ a monolithic structure, relying primarily on external oil inlets to drip lubricant onto the gears. This traditional lubrication method often results in insufficient lubrication of every tooth, exacerbating friction, overheating, and wear. Furthermore, this method is prone to overfilling, causing lubricant to drip from the gears into the equipment and negatively impacting its internal environment. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] This invention provides a novel high-strength gear for transmission shafts, which solves the problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a novel high-strength transmission shaft gear, comprising two combined gear modules and a lubricating belt, wherein the two combined gear modules are symmetrically fitted together and connected and fixed by fasteners, wherein the combined gear module comprises a main body layer and a boss layer formed on one side of the main body layer, the outer edge shape of the boss layer is the same as the outer edge shape of the main body layer, and there is a certain gap between the outer edges of the boss layer and the main body layer, the gap between the main body layer and the boss layer forming a groove, and the lubricating belt is embedded in the groove of the two combined gear modules.
[0008] Preferably, the lubricating strip is configured as a fiber strip structure with multiple micropores, and the lubricating strip absorbs lubricating oil through its micropores. The width of the lubricating strip is adapted to the sum of the widths of the grooves in the two combined gear modules, and the outer layer of the lubricating strip extends beyond the grooves in the two combined gear modules by - mm.
[0009] In a further preferred embodiment, the combined gear module further includes a central reinforcing platform formed at the center of the side of the main body layer facing away from the boss layer. A pivot connection hole penetrating the entire combined gear module is formed at the center of the central reinforcing platform. A plurality of combined connection holes penetrating the entire combined gear module are also formed on the central reinforcing platform. The plurality of combined connection holes are distributed on the outer ring of the pivot connection holes. Fasteners for connecting and fixing two combined gear modules are inserted through the combined connection holes.
[0010] In a further preferred embodiment, the combined gear module further includes a plurality of reinforcing ribs formed on the side of the main body layer facing away from the boss layer, one end of the reinforcing ribs being formed on the outer edge of the central reinforcing platform, and the other end of the reinforcing ribs extending to the tooth tip of the main body layer.
[0011] (III) Beneficial Effects
[0012] Compared with the prior art, this utility model provides a novel high-strength gear for transmission shafts, which has the following beneficial effects:
[0013] In this invention, the combination of two gear modules and a lubricating belt allows the gear teeth to remain lubricated during transmission, reducing overheating and wear. In addition, the lubricating belt allows the lubricating oil dripped during maintenance to spread through the belt, thus increasing the lubrication area.
[0014] By combining the central reinforcing platform and reinforcing ribs in the combined gear module, the overall strength of the combined gear module can be improved, the fracture and deformation damage caused by stress concentration can be reduced, and the service life of the gears can be increased. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of a novel high-strength transmission shaft gear according to the implementation plan;
[0016] Figure 2 for Figure 1 A schematic diagram of the disassembled structure of a gear for a new type of high-strength transmission shaft.
[0017] Figure 3 This is a structural schematic diagram of the combined gear module according to the implementation plan;
[0018] Figure 4 for Figure 3 A schematic diagram of the combined gear module from another angle.
[0019] In the diagram: 10. Combined gear module; 11. Main body layer; 12. Boss layer; 13. Groove; 14. Central reinforcing platform; 15. Rotary shaft connection hole; 16. Combined connection hole; 17. Reinforcing rib; 20. Lubricating strip. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1 and Figure 2 A novel high-strength transmission shaft gear includes two combined gear modules 10 and a lubricating belt 20. The two combined gear modules 10 are symmetrically fitted together and connected and fixed by fasteners such as bolts and nuts. The lubricating belt 20 is embedded between the two combined gear modules 10, close to the tooth tip region. The lubricating belt 20 is a fiber belt structure with multiple micropores, and its micropores allow it to absorb dripped lubricating oil. During transmission, the gear continuously releases lubricating oil through the compression of the lubricating belt 20, lubricating the gear teeth.
[0022] See Figure 3 and Figure 4 The combined gear module 10 includes a main body layer 11, a boss layer 12 formed on one side of the main body layer 11, a central reinforcing platform 14 formed at the center of the side of the main body layer 11 facing away from the boss layer 12, and several reinforcing ribs 17 formed on the side of the main body layer 11 facing away from the boss layer 12. The outer edge shape of the boss layer 12 is the same as the outer edge shape of the main body layer 11, and there is a certain gap between the outer edges of the boss layer 12 and the main body layer 11. The gap between the main body layer 11 and the boss layer 12 forms a groove 13, and the lubricating strip 20 is embedded in the groove 13 in the two combined gear modules 10. A shaft connection hole 15 is formed at the center of the central reinforcing platform 14, which penetrates the entire combined gear module 10. The shaft connection hole 15 can be connected and fixed with the drive shaft by a key. Several combination connection holes 16 are distributed around the outer ring of the shaft connection hole 15. When connecting and fixing two combined gear modules 10, bolts can be passed through the combination connection holes 16 in the two combined gear modules 10, and then tightened with nuts to complete the connection and fixing. One end of the reinforcing rib 17 is formed on the outer edge of the central reinforcing platform 14, and the other end of the reinforcing rib 17 extends to the tooth tip of the main body layer 11. The cooperative arrangement of the central reinforcing platform 14 and the reinforcing rib 17 in the combined gear module 10 can improve the overall strength of the combined gear module 10, reduce fracture and deformation damage caused by stress concentration, and improve the service life of the gears.
[0023] In this embodiment, the width of the lubricating strip 20 is adapted to the sum of the widths of the grooves 13 in the two combined gear modules 10, so that the lubricating strip 20 can be stably embedded in the grooves 13 in the two combined gear modules 10. The outer layer of the lubricating strip 20 extends 1-3mm beyond the grooves 13 in the two combined gear modules 10, so that when the new high-strength transmission shaft uses gears to engage with other gears or racks for transmission, the lubricating strip 20 can be subjected to a certain amount of compression during transmission, thereby allowing the lubricating oil in the lubricating strip 20 to be continuously released to lubricate the contact parts of the gear teeth, reducing gear overheating and wear. In addition, the setting of the lubricating strip 20 also allows the lubricating oil dripped during maintenance to diffuse through the lubricating strip 20, thereby making the lubrication area larger.
[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0025] 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 novel high-strength gear for transmission shafts, characterized in that, The device includes two combined gear modules (10) and a lubricating strip (20). The two combined gear modules (10) are symmetrically fitted together and are connected and fixed to each other by fasteners. The combined gear module (10) includes a main body layer (11) and a boss layer (12) formed on one side of the main body layer (11). The outer edge shape of the boss layer (12) is the same as the outer edge shape of the main body layer (11), and there is a certain gap between the outer edges of the boss layer (12) and the main body layer (11). The gap between the main body layer (11) and the boss layer (12) forms a groove (13). The lubricating strip (20) is embedded in the groove (13) in the two combined gear modules (10).
2. The novel high-strength transmission shaft gear according to claim 1, characterized in that: The lubricating strip (20) is configured as a fiber strip structure with multiple micropores, and the lubricating strip (20) absorbs lubricating oil through its micropores.
3. The novel high-strength transmission shaft gear according to claim 2, characterized in that: The width of the lubricating strip (20) is adapted to the sum of the widths of the grooves (13) in the two combined gear modules (10), and the outer layer of the lubricating strip (20) extends 1-3 mm beyond the grooves (13) in the two combined gear modules (10).
4. The novel high-strength transmission shaft gear according to claim 1, characterized in that: The combined gear module (10) also includes a central reinforcing platform (14) formed at the center of the side of the main body layer (11) facing away from the boss layer (12), and a rotating shaft connection hole (15) penetrating the entire combined gear module (10) is formed at the center of the central reinforcing platform (14).
5. A novel high-strength transmission shaft gear according to claim 4, characterized in that: The central reinforcement platform (14) also has several combination connection holes (16) that penetrate the entire combined gear module (10). The several combination connection holes (16) are distributed on the outer ring of the shaft connection hole (15). Fasteners for connecting and fixing the two combined gear modules (10) are inserted in the combination connection holes (16).
6. A novel high-strength gear for a transmission shaft according to claim 4 or 5, characterized in that: The combined gear module (10) also includes several reinforcing ribs (17) formed on the side of the main body layer (11) facing away from the boss layer (12). One end of the reinforcing rib (17) is formed on the outer edge of the central reinforcing platform (14), and the other end of the reinforcing rib (17) extends to the tooth top of the main body layer (11).