High-strength gear with reinforcing structure

Abstract

The utility model relates to a high-strength gear provided with a reinforcing structure, which comprises a fluted disc, a plurality of gear teeth formed on the outer edge of the fluted disc, a center reinforcing bulge, a tooth root reinforcing bulge loop and a plurality of sections of main reinforcing ribs, and a rotating shaft connecting hole penetrating through the fluted disc is formed in the center of the fluted disc. The center reinforcing protrusion is formed on the end face of the fluted disc in a protruding mode and covers the rotating shaft connecting hole, and the tooth root reinforcing protruding ring is formed on the end face of the fluted disc in a protruding mode. The center reinforcing protrusion is formed on the end face of the fluted disc in a protruding mode and covers the rotating shaft connecting hole, the structural strength around the rotating shaft connecting hole can be effectively improved, torque and pressure transmitted by a rotating shaft are dispersed, stress concentration is reduced, and cracks and fractures around the rotating shaft connecting hole are prevented. The tooth root reinforcing convex ring covers the transition area of the fluted disc and the multiple gear teeth, the strength of the tooth root part can be enhanced, the bending strength of the gear is improved, the fatigue life of the gear is prolonged, tooth root breakage is effectively prevented, and stable operation of the gear under the high-load working condition is ensured.

Description

Technical Field

[0001] This utility model relates to the field of gear technology, specifically to a high-strength gear with a reinforced structure. Background Technology

[0002] In mechanical transmission, gears are a key transmission component and are widely used in various mechanical equipment, such as automobile engines, industrial machine tools, and reducers. The performance of gears directly affects the stability and reliability of the entire mechanical system. Especially under harsh conditions such as high load and high speed, gears need to have higher strength and durability.

[0003] Traditional gear structures typically consist only of a gear disk and teeth formed on the outer edge of the gear disk. While they can meet basic transmission requirements to a certain extent, they have many shortcomings in practical applications: traditional gears are prone to stress concentration when subjected to large loads, and due to insufficient structural strength, they are prone to cracks or even breakage. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides a high-strength gear with a reinforced structure, which solves the problem that traditional gears are prone to stress concentration when subjected to large loads, and are prone to cracking or even breaking due to insufficient structural strength.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-strength gear with a reinforced structure, comprising a gear disk, multiple teeth formed on the outer edge of the gear disk, a central reinforcing protrusion, a tooth root reinforcing ring, and several main reinforcing ribs. A shaft connection hole penetrating the gear disk is formed at the center of the gear disk. The central reinforcing protrusion protrudes from the end face of the gear disk and covers the shaft connection hole. The tooth root reinforcing ring protrudes from the end face of the gear disk and covers the transition area between the gear disk and the multiple teeth. Several main reinforcing ribs protrude from the end face of the gear disk, and both ends of the main reinforcing ribs are connected to the gear disk and the tooth root reinforcing ring, respectively.

[0008] Preferably, the gear disk also has a plurality of auxiliary mounting holes that penetrate the gear disk and are evenly distributed on the outside of the shaft connection hole. The end face of the gear disk has an edge reinforcement protrusion that is equal in number to the number of auxiliary mounting holes, and the edge reinforcement protrusion covers the adjacent auxiliary mounting holes.

[0009] In a further preferred embodiment, the high-strength gear with the reinforced structure also includes multiple secondary reinforcing ribs, which protrude from the end face of the gear disk. Each edge reinforcing protrusion is connected to the adjacent main reinforcing rib via a secondary reinforcing rib, and each edge reinforcing protrusion is also connected to the center reinforcing protrusion and the tooth root reinforcing ring via a secondary reinforcing rib.

[0010] In a further preferred embodiment, the outer wall of the gear teeth is provided with a surface-hardening coating, which is configured as a DLC diamond-like carbon coating or a TiN coating.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model provides a high-strength gear with a reinforced structure, which has the following beneficial effects:

[0013] In this invention, a central reinforcing protrusion is formed on the end face of the gear disk and covers the shaft connection hole, which can effectively increase the structural strength around the shaft connection hole, disperse the torque and pressure transmitted by the shaft, reduce stress concentration, and prevent cracks and fractures around the shaft connection hole; a tooth root reinforcing protrusion covers the transition area between the gear disk and multiple teeth, which can enhance the strength of the tooth root, improve the bending strength and fatigue life of the gear, effectively prevent tooth root fracture, and ensure stable operation of the gear under high load conditions; an edge reinforcing protrusion covers the adjacent auxiliary mounting hole, which compensates for the weakening of the gear disk structural strength by the auxiliary mounting hole; the setting of main reinforcing ribs and secondary reinforcing ribs can help improve the rigidity of the gear and reduce vibration or deformation caused by insufficient rigidity. Attached Figure Description

[0014] Figure 1 A schematic diagram of a high-strength gear with a reinforced structure according to the implementation plan;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure of a high-strength gear with a reinforced structure in the middle, viewed from another angle;

[0016] Figure 3 for Figure 1 The front view of a high-strength gear with a reinforced structure.

[0017] In the diagram: 10, gear disc; 11, shaft connection hole; 12, auxiliary mounting hole; 20, gear tooth; 30, central reinforcing protrusion; 40, tooth root reinforcing protrusion; 50, main reinforcing rib; 60, edge reinforcing protrusion; 70, secondary reinforcing rib. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1 to 3 A high-strength gear with a reinforced structure may include a gear disk 10, a plurality of teeth 20 formed on the outer edge of the gear disk 10, a central reinforcing protrusion 30, a tooth root reinforcing protrusion ring 40, a plurality of main reinforcing ribs 50, a plurality of edge reinforcing protrusions 60, and a plurality of secondary reinforcing ribs 70.

[0020] In this embodiment, multiple gear teeth 20 are formed on the outer edge of the gear disk 10. A shaft connection hole 11 penetrating the gear disk 10 is formed at the center of the gear disk 10. Furthermore, multiple auxiliary mounting holes 12 penetrating the gear disk 10 and evenly distributed outside the shaft connection hole 11 are also formed on the gear disk 10. The gear disk 10 can be connected to a drive shaft or other structures through the shaft connection hole 11 and the auxiliary mounting holes 12, and transmission can be achieved using the gear teeth 20.

[0021] In this embodiment, a central reinforcing protrusion 30 protrudes from the end face of the gear disk 10 and covers the shaft connection hole 11. The central reinforcing protrusion 30 enhances the structural strength around the shaft connection hole 11, disperses the torque and pressure transmitted by the shaft, prevents cracks and fractures around the shaft connection hole 11, and improves the reliability of the gear under heavy loads. The central reinforcing protrusion 30, protruding from the end face of the gear disk 10 and covering the shaft connection hole 11, increases the material thickness and cross-sectional area around the shaft connection hole 11. When the shaft transmits torque, the central reinforcing protrusion 30 can withstand a portion of the stress, distributing the stress evenly to other parts of the gear disk 10 and preventing stress concentration around the shaft connection hole 11.

[0022] In this embodiment, a tooth root reinforcing ring 40 protrudes from the end face of the gear disk 10 and covers the transition area between the gear disk 10 and the multiple gear teeth 20. The tooth root reinforcing ring 40 is used to enhance the structural strength of the transition area between the gear disk 10 and the gear teeth 20, i.e., the tooth root portion, improve the bending strength and fatigue life of the gear, and effectively prevent tooth root fracture. The tooth root portion is one of the areas where the gear teeth 20 are most stressed. During the transmission process of the gear teeth 20, the gear teeth 20 are subjected to meshing forces, and the tooth root portion will generate large bending stress. The tooth root reinforcing ring 40 covers the transition area between the gear disk 10 and the multiple gear teeth 20, increases the thickness and rigidity of the tooth root portion, can resist the effect of bending stress, reduce the deformation and stress concentration of the tooth root portion, thereby improving the bending strength and fatigue life of the gear.

[0023] In this embodiment, the end face of the gear disk 10 has an edge reinforcement protrusion 60 with a number equal to the number of auxiliary mounting holes 12, and the edge reinforcement protrusion 60 covers the adjacent auxiliary mounting holes 12. The edge reinforcement protrusion 60 is used to compensate for the weakening of the structural strength of the gear disk 10 by the auxiliary mounting holes 12, improve the structural strength around the auxiliary mounting holes 12, and prevent the gear disk 10 from being deformed and damaged due to the presence of the auxiliary mounting holes 12 during installation and use.

[0024] In this embodiment, several main reinforcing ribs 50 protrude from the end face of the gear disk 10, and both ends of the main reinforcing ribs 50 are connected to the gear disk 10 and the tooth root reinforcing ring 40, respectively. Multiple secondary reinforcing ribs 70 protrude from the end face of the gear disk 10, and each edge reinforcing protrusion 60 is connected to an adjacent main reinforcing rib 50 via a secondary reinforcing rib 70. Each edge reinforcing protrusion 60 is also connected to the center reinforcing protrusion 30 and the tooth root reinforcing ring 40 via secondary reinforcing ribs 70. The main reinforcing ribs 50 and secondary reinforcing ribs 70 are used to enhance the overall rigidity of the gear disk 10, reduce gear deformation during high-speed operation, and also play a certain role in stress transmission, distributing the stress borne to the gear disk.

[0025] In this embodiment, a surface-hardening coating can also be applied to the outer wall of multiple gear teeth 20. The surface-hardening coating can be a DLC (diamond-like carbon) coating, a TiN coating, or other existing surface-hardening coatings. A DLC coating is a coating containing diamond components in its microstructure; the constituent element of DLC is carbon. Due to the presence of diamond components, the DLC coating exhibits high hardness and a low coefficient of friction, as well as good film density, which can improve the surface hardness and wear resistance of the gear teeth. Similarly, a TiN (titanium nitride) coating can also have high wear resistance and a low coefficient of friction, and can also be used to improve the surface hardness and wear resistance of the gear teeth.

[0026] 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.

[0027] 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 high-strength gear with a reinforced structure, comprising a gear disk (10) and a plurality of teeth (20) formed on the outer edge of the gear disk (10), characterized in that, It also includes a central reinforcing protrusion (30), a tooth root reinforcing protrusion (40), and several main reinforcing ribs (50). A shaft connection hole (11) penetrating the tooth disk (10) is formed at the center of the tooth disk (10). The central reinforcing protrusion (30) protrudes from the end face of the tooth disk (10) and covers the shaft connection hole (11). The tooth root reinforcing protrusion (40) protrudes from the end face of the tooth disk (10) and covers the transition area between the tooth disk (10) and multiple gear teeth (20). Several main reinforcing ribs (50) protrude from the end face of the tooth disk (10), and the two ends of the main reinforcing ribs (50) are respectively connected to the tooth disk (10) and the tooth root reinforcing protrusion (40).

2. A high-strength gear with a reinforced structure according to claim 1, characterized in that: The gear disk (10) also has a plurality of auxiliary mounting holes (12) that penetrate the gear disk (10) and are evenly distributed on the outside of the shaft connection hole (11). The end face of the gear disk (10) has protruding edge reinforcement protrusions (60) in the same number as the number of auxiliary mounting holes (12), and the edge reinforcement protrusions (60) cover the adjacent auxiliary mounting holes (12).

3. A high-strength gear with a reinforced structure according to claim 2, characterized in that: It also includes multiple secondary reinforcing ribs (70), which protrude from the end face of the toothed disc (10), and each of the edge reinforcing protrusions (60) is connected to the adjacent main reinforcing rib (50) through the secondary reinforcing ribs (70).

4. A high-strength gear with a reinforced structure according to claim 3, characterized in that: Each of the edge reinforcing protrusions (60) is also connected to the center reinforcing protrusion (30) and the tooth root reinforcing protrusion (40) by a secondary reinforcing rib (70).

5. A high-strength gear with a reinforced structure according to any one of claims 1-4, characterized in that: The outer wall of the gear teeth (20) is provided with a surface-hardened coating.

6. A high-strength gear with a reinforced structure according to claim 5, characterized in that: The surface-hardening coating is set as a DLC diamond-like coating or a TiN coating.

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