An involute gear

Abstract

This utility model relates to the field of involute gear technology, and more particularly to an involute gear. Its technical solution includes: a gear body, a skeleton sealing ring, and a one-way valve. A copper sleeve is installed inside the gear body, and the gear body is mounted on the one-way valve via the copper sleeve. A one-way sleeve is installed on the one-way valve, and an installation groove is formed inside the one-way sleeve. A steel ball is installed inside the one-way sleeve via a flat spring. A spring seat, a washer, and a shaft elastic retaining ring are installed on the one-way sleeve. A skeleton sealing ring is installed at the top of the one-way valve and the gear body. A housing is installed on the one-way sleeve, and a crescent plate is provided at the connection between the housing and the one-way sleeve. This utility model optimizes the structure by adding a skeleton oil seal to the gear end face, which can prevent external dust from entering the one-way valve and avoid internal grease leakage. Simultaneously, the inner curved surface adopts a double-layer roller structure to improve working stability and adapt to more complex and demanding working environments.

Description

Technical Field

[0001] This utility model relates to the field of involute gear technology, and specifically to an involute gear. Background Technology

[0002] Involute gears are a general term for gears whose tooth profile is an involute. The end face tooth profile of an involute cylindrical gear is a circular involute. The theoretical tooth profile of the large end of an involute bevel gear is a spherical involute. Involute gears can be modified to avoid undercut, improve meshing performance, and increase tooth strength.

[0003] In the field of mechanical transmission, involute gears and their matching one-way valve assemblies are widely used. However, existing gear and one-way valve combinations have certain shortcomings in actual operation: Firstly, they lack effective sealing structures, allowing external dust to easily penetrate the one-way valve during operation. This not only contaminates the internal grease, affecting lubrication between components, but also exacerbates wear, reducing equipment reliability and service life. Secondly, some designs using single-layer rollers have limitations in load-bearing capacity and transmission stability, easily leading to jamming and reduced transmission efficiency, failing to meet the demands of high precision and high stability. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an involute gear, which solves the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows: An involute gear includes a gear body, a skeleton seal ring, and a one-way valve. A copper sleeve is installed inside the gear body. The gear body is mounted on the one-way device through the copper sleeve. A one-way sleeve is installed on the one-way device. An installation groove is opened in the one-way sleeve. A steel ball is installed in the one-way sleeve through a flat spring. A spring seat, a washer and a shaft elastic retaining ring are installed on the one-way sleeve. A skeleton sealing ring is installed at the top of the one-way device where it mates with the gear body.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, a shell is installed on the one-way sleeve, and a crescent-shaped piece is provided at the connection between the shell and the one-way sleeve.

[0008] The beneficial effects of adopting the above-mentioned further solutions are: The outer shell effectively protects the one-way sleeve and internal core components such as flat springs and steel balls, preventing external dust and impurities from entering or internal components from being damaged by external impacts, thus improving the overall structural durability. The crescent plate can precisely position the relative positions of the outer shell and the one-way sleeve, preventing relative rotation or axial displacement between the two during operation, ensuring the stability of the connection, and reducing vibration and noise caused by assembly gaps.

[0009] Furthermore, the gear body adopts an involute tooth profile, and the gear body is interference-fitted with the copper sleeve.

[0010] The beneficial effects of adopting the above-mentioned further solutions are: Involute gears are characterized by smooth transmission and good meshing performance; the interference fit between the gear body and the copper bushing enables a rigid connection between the two, avoids relative slippage, and ensures the reliability of torque transmission.

[0011] Furthermore, a shift fork ring is installed on the one-way sleeve, and the shift fork ring is located between the spring seat and the washer.

[0012] The beneficial effects of adopting the above-mentioned further solutions are: The shift fork ring can serve as the fulcrum of the external shift fork mechanism. By cooperating with the shift fork, it enables the axial movement of the one-way sleeve, thereby controlling the working state of the one-way device (such as engagement or disengagement) and improving the operational flexibility of the gear. Its position design between the spring seat and the washer can utilize the limiting effect of the components on both sides to ensure that the shift fork ring does not deviate from the preset trajectory when moving axially, while avoiding interference with other components and ensuring the accuracy of operation.

[0013] Furthermore, a conical compression spring is provided on the one-way sleeve, and the bottom end face of the conical compression spring is mounted on the spring seat.

[0014] The beneficial effects of adopting the above-mentioned further solutions are: Conical compression springs have non-linear elastic characteristics and can provide gradually increasing elastic force during compression. The preload can be precisely adjusted according to the working requirements of the one-way device to ensure the tight fit between the steel ball and related components. By mounting its bottom end on the spring seat, the force of the spring can be dispersed through the spring seat, avoiding excessive local stress and deformation of the one-way sleeve.

[0015] Furthermore, the skeleton sealing ring is made of rubber and is used to seal the gap between the gear body and the housing.

[0016] The beneficial effects of adopting the above-mentioned further solutions are: The rubber material has good elasticity and sealing properties, which can fit tightly against the mating surfaces of the gear body and the housing, effectively preventing lubricating oil leakage and external moisture and dust from entering the internal structure, thus extending the service life of the gear. The skeleton design enhances the overall rigidity of the sealing ring, making it less prone to deformation during long-term use or temperature changes, ensuring the stability of the sealing performance.

[0017] Furthermore, the flat spring is arc-shaped and is used to apply an elastic force to the steel ball, so that the steel ball is held in the working position.

[0018] The beneficial effects of adopting the above-mentioned further solutions are: The curved flat spring can fit into the inner wall of the mounting groove of the one-way sleeve. During assembly, it can store elastic potential energy through its own deformation and apply continuous and uniform radial pressure to the steel ball, ensuring that the steel ball is always stable in the working position and ensuring the reliable realization of the one-way transmission function of the one-way device. Compared with the linear spring, the elastic force direction of the curved flat spring is more in line with the force requirements of the steel ball.

[0019] This utility model provides an involute gear. It has the following beneficial effects: This invention creates a reliable sealing barrier by setting a skeleton sealing ring at the mating point between the gear body and the top of the one-way valve. This design not only effectively prevents external dust from entering the one-way valve and avoids impurities causing wear on internal components, but also locks in internal grease to prevent leakage. This maintains a good lubrication environment and cleanliness inside the one-way valve and gear body, reducing malfunctions caused by sealing problems and extending the service life of the gear. Regarding transmission stability, to address the issues of limited load-bearing capacity, proneness to jamming, and reduced transmission efficiency inherent in existing single-layer roller designs, this invention employs a double-layer roller design. Simultaneously, the gear body utilizes an involute tooth profile, with an interference fit to the copper sleeve, ensuring smooth transmission and reliable torque delivery. Inside the one-way valve, a flat spring applies elastic force to the steel balls, and the combined action of the one-way sleeve, spring seat, and other components further enhances the overall stability of the structure during operation. The double-layer roller design strengthens the structure's load-bearing capacity, effectively prevents jamming, and improves transmission efficiency. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0021] In the attached diagram: Figure 1 This is a front view schematic diagram of the present utility model.

[0022] The attached diagram lists the components represented by each number as follows: 1. Gear body; 2. Copper sleeve; 3. Half-moon plate; 4. Housing; 5. One-way sleeve; 6. Conical compression spring; 7. Spring seat; 8. Shift fork ring; 9. Washer; 10. Shaft elastic retaining ring; 11. Steel ball; 12. Flat spring; 13. Skeleton seal ring; 14. One-way valve. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1 As shown, the embodiments provided by this utility model are as follows: Example: An involute gear includes a gear body 1, a skeleton seal ring 13, and a one-way valve 14. A copper sleeve 2 is installed inside the gear body 1. The gear body 1 is mounted on the one-way device 14 through the copper sleeve 2. A one-way sleeve 5 is installed on the one-way device 14. An installation groove is opened in the one-way sleeve 5. A steel ball 11 is installed in the one-way sleeve 5 through the flat spring 12. A spring seat 7, a washer 9 and a shaft elastic retaining ring 10 are installed on the one-way sleeve 5. A skeleton sealing ring 13 is installed at the top of the one-way device 14 and the gear body 1; The one-way sleeve 5 is equipped with a housing 4. A crescent plate 3 is provided at the connection between the housing 4 and the one-way sleeve 5. The housing 4 can effectively protect the one-way sleeve 5 and its internal core components such as the flat spring 12 and steel ball 11, preventing external dust and impurities from entering or internal components from being damaged by external force collisions, thus improving the overall durability of the structure. The crescent plate 3 can accurately position the relative position of the housing 4 and the one-way sleeve 5, preventing relative rotation or axial displacement between the two during operation, ensuring the stability of the connection, and reducing vibration and noise caused by assembly gaps. The gear body 1 adopts an involute tooth profile. The gear body 1 and the copper sleeve 2 are interference-fitted. The involute tooth profile has the characteristics of smooth transmission and good meshing performance. The interference fit between the gear body 1 and the copper sleeve 2 can realize the rigid connection between the two, avoid relative slippage, and ensure the reliability of torque transmission. A shift fork ring 8 is installed on the one-way sleeve 5. The shift fork ring 8 is located between the spring seat 7 and the washer 9. The shift fork ring 8 can serve as the fulcrum of the external shift fork mechanism. By cooperating with the shift fork, the axial movement of the one-way sleeve 5 is realized, thereby controlling the working state of the one-way device 14 (such as engagement or disengagement) and improving the operation flexibility of the gear. Its position design between the spring seat 7 and the washer 9 can utilize the limiting effect of the components on both sides to ensure that the shift fork ring 8 does not deviate from the preset trajectory when moving axially, while avoiding interference with other components and ensuring the accuracy of operation. A conical compression spring 6 is provided on the one-way sleeve 5. The bottom end of the conical compression spring 6 is mounted on the spring seat 7. The conical compression spring 6 has non-linear elastic characteristics and can provide gradually increasing elastic force during compression. The preload can be precisely adjusted according to the working requirements of the one-way device 14 to ensure the tight fit between the steel ball 11 and related components. By mounting its bottom end on the spring seat 7, the force of the spring can be dispersed through the spring seat 7 to prevent the one-way sleeve 5 from being deformed due to excessive local stress. The skeleton sealing ring 13 is made of rubber. The skeleton sealing ring 13 is used to seal the gap between the gear body 1 and the housing 4. The rubber material has good elasticity and sealing performance, and can closely fit the mating surfaces of the gear body 1 and the housing 4, effectively preventing lubricating oil leakage and external moisture and dust from entering the internal structure, thus extending the service life of the gear. The skeleton design enhances the overall rigidity of the sealing ring, making it less prone to deformation during long-term use or temperature changes, and ensuring the stability of the sealing performance. The flat spring 12 is arc-shaped and is used to apply elastic force to the steel ball 11, keeping the steel ball 11 in the working position. The arc-shaped flat spring 12 can fit into the inner wall of the mounting groove of the one-way sleeve 5. During assembly, it can store elastic potential energy through its own deformation and apply continuous and uniform radial pressure to the steel ball 11, ensuring that the steel ball 11 is always stable in the working position and ensuring the reliable realization of the one-way transmission function of the one-way device 14. Compared with a linear spring, the elastic force direction of the arc-shaped flat spring 12 is more in line with the force requirements of the steel ball 11.

[0025] Working principle: The gear body 1 forms a rigid connection with the copper sleeve 2 through an interference fit. The copper sleeve 2 is installed on the one-way device 14, so that the gear body 1 and the one-way device 14 establish a torque transmission path. The involute tooth profile adopted by the gear body 1 ensures smooth transmission when meshing with other gears.

[0026] The flat spring 12 inside the one-way sleeve 5 is arc-shaped and applies a continuous elastic force to the steel ball 11, keeping the steel ball 11 in the working position and providing a basis for the one-way transmission function; the bottom end of the conical compression spring 6 is mounted on the spring seat 7, and the preload is adjusted by nonlinear elastic characteristics to ensure that the steel ball 11 fits tightly with the relevant components.

[0027] When the external shift fork mechanism acts on the shift fork ring 8 (located between the spring seat 7 and the washer 9), the shift fork ring 8 drives the one-way sleeve 5 to move axially. Combined with the change in the elastic force of the conical compression spring 6, it controls the engagement or disengagement state of the one-way device 14, thereby realizing the switching of the gear working state.

[0028] The shaft uses an elastic retaining ring 10, a washer 9, and a spring seat 7 to form an axial limit on components such as the shift fork ring 8 and the conical compression spring 6, preventing the components from deviating from their trajectory or interfering with each other; the outer shell 4 is precisely positioned and connected to the one-way sleeve 5 through the crescent plate 3 to prevent relative movement, while protecting the internal core components such as the flat spring 12 and the steel ball 11.

[0029] The skeleton sealing ring 13 (rubber material) at the joint between the gear body 1 and the top of the one-way device 14 seals the gap between the gear body 1 and the housing 4, preventing grease leakage and external impurities from entering, and maintaining internal cleanliness and lubrication.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An involute gear, characterized in that: It includes a gear body (1), a skeleton seal ring (13), and a one-way valve (14). A copper sleeve (2) is installed inside the gear body (1). The gear body (1) is mounted on the one-way device (14) through the copper sleeve (2). A one-way sleeve (5) is installed on the one-way device (14). An installation groove is opened inside the one-way sleeve (5). A steel ball (11) is installed inside the one-way sleeve (5) through a flat spring (12). A spring seat (7), a washer (9), and a shaft elastic retaining ring (10) are installed on the one-way sleeve (5). A skeleton sealing ring (13) is installed at the top of the one-way device (14) and the gear body (1).

2. The involute gear according to claim 1, characterized in that: The one-way sleeve (5) is fitted with a shell (4), and a crescent plate (3) is provided at the connection between the shell (4) and the one-way sleeve (5).

3. The involute gear according to claim 1, characterized in that: The gear body (1) adopts an involute tooth profile, and the gear body (1) is interference-fitted with the copper sleeve (2).

4. The involute gear according to claim 1, characterized in that: The one-way sleeve (5) is equipped with a shift fork ring (8), which is located between the spring seat (7) and the washer (9).

5. An involute gear according to claim 1, characterized in that: A conical compression spring (6) is provided on the one-way sleeve (5), and the bottom end face of the conical compression spring (6) is mounted on the spring seat (7).

6. The involute gear according to claim 1, characterized in that: The skeleton sealing ring (13) is made of rubber and is used to seal the gap between the gear body (1) and the outer shell (4).

7. An involute gear according to claim 1, characterized in that: The flat spring (12) is arc-shaped and is used to apply an elastic force to the steel ball (11) so that the steel ball (11) is held in the working position.

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