Impact-resistant self-lubricating gear assembly

By introducing a split sleeve, titanium alloy teeth, and limiting groove structure into the gear assembly, the stability problem at the gear connection point is solved, achieving self-lubrication and stable connection, thereby improving the service life and practicality of the gear.

CN223975503UActive Publication Date: 2026-03-06HANGZHOU JUHONG HARDWARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In the prior art, the connection effect of gear joints is generally poor, and they are prone to shaking under impact loads, which affects the gear meshing effect.

Method used

Design an impact-resistant self-lubricating gear assembly, which adopts a split sleeve, titanium alloy teeth, limiting groove and sealing groove structure. The connection is achieved through the cooperation of the limiting block and the sealing plate, and the self-lubricating function is achieved through the lubrication channel.

Benefits of technology

It enhances the connection stability of gears, reduces wobbling, extends service life, and improves the practicality and flexibility of gears through its self-lubricating function.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an impact-resistant self-lubricating gear assembly, which relates to the technical field of gears, and comprises a split sleeve and a gear main body, the split sleeve is connected to the outer side of the gear main body, and titanium alloy teeth are uniformly fixed on the outer side of the split sleeve. The split sleeves with the titanium alloy teeth are arranged on the outer side of the gear body, in the using process, the gear body is connected to the outer side of a shaft, the split sleeves can be detached through the limiting blocks, the limiting grooves, the sealing grooves and the sealing plates, in other words, other components can be kept in situ, only the independent split sleeves are processed, and therefore the split sleeves can be detached conveniently. The split sleeve is simple in structure, easy to operate and convenient to use, the two limiting blocks and the two limiting grooves can achieve the primary limiting purpose during installation, reinforcing and fixing of the connecting position are achieved through cooperation of the sealing plate and the sealing groove, and therefore the fixing effect of the split sleeve is enhanced, the split sleeve is not prone to shaking to affect gear meshing during installation and use, and practicability and flexibility are enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of gear technology, and in particular to an impact-resistant self-lubricating gear assembly. Background Technology

[0002] Gears are a crucial transmission component in mechanical equipment. They transmit power or motion through the meshing of teeth. A gear mainly consists of two parts: teeth and a gear body. The teeth, evenly distributed on the outer edge or inner bore of the gear body, are the core part that enables the gear to transmit power. The gear body is the basic part that supports the teeth, and its shape and size are designed according to specific application scenarios and requirements.

[0003] Chinese Patent Publication No. CN 220286350 U discloses a gear shaft for a robotic arm, including a shaft body and a gear section, and a connector for connecting the gear section and the shaft body. The gear section includes multiple gear teeth blocks, all of which have the same shape. The multiple gear teeth blocks are detachably connected to the shaft body via the connector. The multiple gear teeth blocks are evenly distributed along the circumference of the shaft body. Each gear tooth block is detachably connected to the shaft body. When a gear tooth block is damaged, it is not necessary to replace the entire gear shaft; only the damaged single gear tooth block needs to be replaced, thus reducing the cost of use.

[0004] The existing technical solutions mentioned above have the following shortcomings: Although the technical solutions can avoid the tedious process of replacing the whole gear by replacing individual gear blocks during use, the treatment of the connection of individual gear blocks is relatively simple, and the connection effect has certain room for optimization. Therefore, it is necessary to design an impact-resistant self-lubricating gear assembly to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide an impact-resistant self-lubricating gear assembly to solve the problem of poor connection performance mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an impact-resistant self-lubricating gear assembly, comprising a split sleeve and a gear body, wherein the split sleeve is connected to the outside of the gear body;

[0007] Titanium alloy teeth are evenly fixed on the outer side of the split sleeve. Limiting grooves are evenly provided on one side of the gear body, and sealing grooves are provided on the gear body outside the limiting grooves. Limiting blocks are fixed on the inner side of the split sleeve, and the limiting blocks are connected to the limiting grooves. Threaded holes are evenly provided on one end of the gear body, and bolts are threaded into the threaded holes through sealing plates.

[0008] Preferably, the lubrication channel is connected to the oil guide channel, and the oil guide channel is connected to the lubrication hole.

[0009] Preferably, the lubrication channel is connected to the oil guide channel, and the oil guide channel is connected to the lubrication hole.

[0010] Preferably, a connecting sleeve is fixed to one side of the gear body, and an oil injection channel is provided inside the connecting sleeve. A sealing plug is connected inside the oil injection channel, and the oil injection channel and the lubrication channel are connected.

[0011] Preferably, the split sleeve is provided in four sets, and the split sleeve is arranged in a ring on the outside of the gear body.

[0012] Preferably, the split sleeve is provided in four sets, and the split sleeve is arranged in a ring on the outside of the gear body.

[0013] Preferably, the size of the sealing groove matches the size of the sealing plate, and both the sealing groove and the sealing plate are provided in four sets.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the impact-resistant self-lubricating gear assembly realizes the functions of easy assembly and maintenance and enhanced connection;

[0015] By setting multiple sets of split sleeves with titanium alloy teeth on the outside of the gear body, the gear body is connected to the outside of the shaft during use. The split sleeves can be disassembled through the action of limiting blocks, limiting grooves, sealing grooves, and sealing plates. That is, other parts can remain in place, and only the split sleeves need to be processed. The operation is simple and convenient. During installation, the two sets of limiting blocks and limiting grooves can play a preliminary limiting role, and together with the sealing plate and sealing groove, they can strengthen the fixation at the connection, thereby enhancing the fixing effect of the split sleeves. This makes it less likely to shake during installation and use, affecting gear meshing, thus enhancing practicality and flexibility. At the same time, the design of the titanium alloy teeth can withstand large impact loads without deformation, extending service life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-person top-view cross-sectional structural diagram of the present invention;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the second-view top-section cross-sectional structure of this utility model;

[0020] Figure 4 This is a partial three-dimensional structural diagram of the split sleeve of this utility model;

[0021] Figure 5 This is a front view cross-sectional structural diagram of the gear body of this utility model;

[0022] Figure 6 This is a front view structural diagram of the present invention.

[0023] The following are the annotations in the figure: 1. Titanium alloy gear; 2. Split sleeve; 3. Sealing plug; 4. Limiting block; 5. Sealing groove; 6. Limiting groove; 7. Screw hole; 8. Gear body; 9. Sealing plate; 10. Bolt; 11. Lubrication hole; 12. Lubrication channel; 13. Oil guide channel; 14. Connecting sleeve; 15. Oil injection channel. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Please see Figures 1-6 One embodiment of this utility model is an impact-resistant self-lubricating gear assembly, comprising a split sleeve 2 and a gear body 8.

[0026] The gear body 8 has a lubrication channel 12 inside, and an oil guide channel 13 is evenly arranged on the outside of the lubrication channel 12. The split sleeve 2 has lubrication holes 11 evenly arranged inside. The lubrication channel 12 is connected to the oil guide channel 13, and the oil guide channel 13 is connected to the lubrication hole 11. A connecting sleeve 14 is fixed on one side of the gear body 8, and an oil injection channel 15 is provided inside the connecting sleeve 14. A sealing plug 3 is connected inside the oil injection channel 15, and the oil injection channel 15 is connected to the lubrication channel 12.

[0027] Specifically, such as Figure 3 , Figure 5 and Figure 6 As shown, during use, lubricating oil is injected into the oil injection channel 15, and it flows through the oil guide channel 13 and the lubrication channel 12 to the space between the titanium alloy teeth 1 to achieve self-lubrication.

[0028] The split sleeve 2 is provided in four sets, and the split sleeve 2 is arranged in a ring on the outside of the gear body 8;

[0029] Specifically, such as Figure 1 As shown, the four-part modular design allows for easy individual assembly and disassembly during use.

[0030] The split sleeve 2 is connected to the outside of the gear body 8. Titanium alloy teeth 1 are evenly fixed on the outside of the split sleeve 2. Limiting grooves 6 are evenly provided on one side of the gear body 8. Sealing grooves 5 are provided on the gear body 8 outside the limiting grooves 6. Limiting blocks 4 are fixed on the inside of the split sleeve 2.

[0031] The width of the limiting block 4 is matched with the width of the limiting groove 6, and the cross-sections of both the limiting block 4 and the limiting groove 6 are convex.

[0032] Specifically, such as Figure 1 As shown, during use, the convex limiting block 4 and limiting groove 6 can serve as limiting points during installation.

[0033] Furthermore, the limiting blocks 4 are all connected to the limiting grooves 6, and one end of the gear body 8 is uniformly provided with screw holes 7, and the inside of the screw holes 7 is threadedly connected to bolts 10 through the sealing plate 9.

[0034] Working principle: When in use, the gear body 8 is connected to the outside of the shaft. The split sleeve 2 can be disassembled through the action of the limiting block 4, limiting groove 6, sealing groove 5 and sealing plate 9. That is, other parts can remain in place, and only the split sleeve 2 needs to be processed. During installation, the two sets of limiting blocks 4 and limiting groove 6 can play a preliminary limiting role, and together with the sealing plate 9 and sealing groove 5, they can strengthen and fix the connection, so that it is not easy to shake during installation and use, which will affect the gear meshing. Furthermore, lubricating oil is injected into the oil injection channel 15. During use, it flows to the titanium alloy teeth 1 through the oil guide channel 13 and lubrication channel 12 to achieve self-lubrication.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An impact-resistant self-lubricating gear assembly, comprising a split sleeve (2) and a gear body (8), the split sleeve (2) being connected to the outside of the gear body (8); characterized in that Titanium alloy teeth (1) are uniformly fixed to the outside of the split sleeve (2), the gear body (8) is uniformly provided with a limiting groove (6) on one side, and the gear body (8) on the outside of the limiting groove (6) is provided with an enclosing groove (5), the inside of the split sleeve (2) is fixed with a limiting block (4), and the limiting block (4) is connected with the limiting groove (6), one end of the gear body (8) is uniformly provided with a screw hole (7), and the inside of the screw hole (7) is screw-connected with a bolt (10) through an enclosing plate (9).

2. The impact-resistant, self-lubricating gear assembly of claim 1, wherein: The inside of the gear body (8) is provided with a lubricating channel (12), and the outside of the lubricating channel (12) is uniformly provided with an oil guiding channel (13), and the inside of the split sleeve (2) is uniformly provided with a lubricating hole (11).

3. A shock resistant self-lubricating gear assembly according to claim 2, wherein: The lubricating channel (12) and the oil guiding channel (13) are communicated, and the oil guiding channel (13) and the lubricating hole (11) are communicated.

4. The impact-resistant, self-lubricating gear assembly of claim 2, wherein: The gear body (8) is fixed with a connecting sleeve (14) on one side, and the inside of the connecting sleeve (14) is provided with an oil injection channel (15), the inside of the oil injection channel (15) is connected with a sealing plug (3), and the oil injection channel (15) and the lubricating channel (12) are communicated.

5. The impact-resistant, self-lubricating gear assembly of claim 1, wherein: The width of the limiting block (4) matches the width of the limiting groove (6), and the cross section of the limiting block (4) and the limiting groove (6) is convex.

6. The impact-resistant, self-lubricating gear assembly of claim 1, wherein: The split sleeve (2) is provided with four groups, and the split sleeve (2) is arranged in a ring shape on the outside of the gear body (8).

7. The impact-resistant, self-lubricating gear assembly of claim 1, wherein: The size of the enclosing groove (5) matches the size of the enclosing plate (9), and the enclosing groove (5) and the enclosing plate (9) are provided with four groups.

Citation Information

Patent Citations

  • Gear shaft assembly for mechanical arm

    CN220286350U