Synchronous different-direction speed reducer
By designing sealing components in synchronous redirection reducers, including sealing rings, compression springs, sealing lips, anti-missive lips and dust-proof lips, the oil leakage and impurities problems under long-term use of the reducer are solved, extending the life of the sealing ring, improving leakage prevention capabilities, and ensuring product quality.
Patent Information
- Application Number
- CN202421940917.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-08-12
AI Technical Summary
In the long-term use of existing synchronous redirection reducers, internal parts wear and produce debris, resulting in impurities in the lubricating oil, destroying the sealing structure, causing oil leakage, and affecting product quality.
A synchronous redirection reducer is designed, using sealing components, including sealing rings, compression springs, sealing lips, anti-missive lips and dust-proof lips. The sealing ring is placed in the installation groove and is pressed by the sealing cover and compression spring. The sealing lips and anti-missive lips are close to the output shaft to prevent oil leakage and impurities from entering.
Through the design of the sealing component, it effectively prevents the leakage of lubricating oil and the entry of impurities, extends the service life of the sealing ring, improves the leakage prevention capability of the sealing ring, and ensures product quality.
Smart Images
Figure CN222836211U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reducers, in particular to a synchronous counter-rotating reducer. Background Art
[0002] A synchronous counter-rotating reducer is a special mechanical transmission device that can change the rotational speed transmitted by the prime mover and transmit it through the output shaft. The reducer is equipped with a complex gear combination, worm gear or other transmission mechanism to enable the input shaft and output shaft to rotate at different speeds and directions.
[0003] In order to avoid the problem of reduced transmission accuracy caused by wear of its internal components, existing reducers add lubricating oil and add sealing structures to prevent the lubricating oil inside the reducer from leaking and contaminating the produced products. However, after long-term use, the internal components of the reducer will still wear and produce debris, which will fall into the lubricating oil. When the reducer is working, the debris will follow the lubricating oil to the sealing structure and damage the sealing structure, thereby causing oil leakage in the reducer and affecting product quality. Utility Model Content
[0004] The purpose of the utility model is to provide a synchronous counter-rotating speed reducer to solve the above-mentioned deficiencies in the prior art.
[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:
[0006] A synchronous counter-rotating reducer includes a reducer, wherein a worm gear and a gear set are provided in the reducer to adjust the output shaft speed of the reducer, an installation groove is provided on the reducer, the installation groove is coaxially arranged with the output shaft, a sealing assembly is provided in the installation groove, the sealing assembly includes a sealing ring arranged in the installation groove, a compression spring is installed in the groove on the inner side of the sealing ring, the compression spring is arranged in an annular shape, a sealing lip and an anti-trash lip are respectively provided on the inner edge of the sealing ring, the sealing lip and the anti-trash lip are both attached to the outer side of the output shaft, and a slot for the compression spring to pass through is formed between the anti-trash lip and the sealing ring, and a sealing cover is also detachably connected to the reducer.
[0007] Furthermore, the sealing cover includes a pressure plate, which is adapted to the mounting groove. A cover plate is fixedly connected to the pressure plate, which is adapted to the placement groove on the reducer. The placement groove is connected to the mounting groove, and the cover plate is connected to the reducer by bolts.
[0008] Furthermore, a dust lip is provided on the inner edge of the sealing ring, and the dust lip is attached to the outer side of the output shaft.
[0009] Furthermore, the debris-proof lip and dust-proof lip are respectively arranged on both sides of the sealing lip.
[0010] Furthermore, the sealing ring, the debris-proof lip and the dust-proof lip are made in one piece.
[0011] Furthermore, the sealing ring, the debris-proof lip and the dust-proof lip are made of polytetrafluoroethylene.
[0012] In the above technical solution, the utility model provides a synchronous counter-rotating reducer with the beneficial effects of:
[0013] Through the provided sealing assembly, the sealing ring is placed in the mounting groove, and the sealing ring is pressed into the mounting groove by the sealing cover. Under the action of the compression spring, the sealing lip on the sealing ring is tightly fitted to the outer side of the output shaft, thereby completing the oil seal; and the anti-trash lip is provided on the side in contact with the lubricating oil, and the anti-trash lip also fits tightly to the outer side of the output shaft, preventing impurities in the lubricating oil from damaging the sealing lip, thereby extending the service life of the sealing ring. In addition, the anti-trash lip forms a preliminary seal to prevent oil leakage, further improving the anti-leakage ability of the sealing ring.
[0014] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
[0015] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0017] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present utility model;
[0018] Figure 2 A schematic diagram of the local structure of the output shaft of the reducer provided in an embodiment of the utility model;
[0019] Figure 3 A schematic diagram of a partially enlarged structure provided by an embodiment of the utility model;
[0020] Figure 4 A schematic diagram of the structure of the output shaft and the sealing assembly provided in an embodiment of the utility model;
[0021] Figure 5 This is a schematic diagram of the sealing cover structure provided by an embodiment of the utility model.
[0022] Description of reference numerals:
[0023] 1. Reducer; 11. Output shaft; 12. Mounting groove; 2. Sealing assembly; 21. Sealing ring; 22. Compression spring; 23. Sealing lip; 24. Anti-trash lip; 25. Slot; 3. Sealing cover; 31. Pressure plate; 32. Cover plate; 4. Dustproof lip. DETAILED DESCRIPTION
[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.
[0025] See also Figure 1-5 A synchronous counter-rotating reducer 1 includes a reducer 1, wherein a worm gear and a gear set are provided in the reducer 1 to adjust the speed of the output shaft 11 on the reducer 1, and a mounting groove 12 is provided on the reducer 1, wherein the mounting groove 12 is coaxially arranged with the output shaft 11, and a sealing assembly 2 is provided in the mounting groove 12, wherein the sealing assembly 2 includes a sealing ring 21 arranged in the mounting groove 12, and a compression spring 22 is installed in the groove on the inner side of the sealing ring 21, and the compression spring 22 is arranged in an annular shape, and a sealing lip 23 and an anti-trash lip 24 are respectively provided on the inner edge of the sealing ring 21, and the sealing lip 23 and the anti-trash lip 24 are both attached to the outer side of the output shaft 11, and a slot 25 for the compression spring 22 to pass through is formed between the anti-trash lip 24 and the sealing ring 21, and a sealing cover 3 is also detachably connected to the reducer 1.
[0026] The sealing ring 21 is placed in the mounting groove 12, and the sealing cover 3 is used to press the sealing ring 21 into the mounting groove 12. Under the action of the compression spring 22, the sealing lip 23 on the sealing ring 21 is tightly fitted to the outer side of the output shaft 11, thereby completing the oil seal; and the anti-trash lip 24 is arranged on the side in contact with the lubricating oil. The anti-trash lip 24 also fits tightly to the outer side of the output shaft 11 to prevent impurities in the lubricating oil from damaging the sealing lip 23, thereby extending the service life of the sealing ring 21. In addition, the anti-trash lip 24 forms a preliminary seal to prevent oil leakage, further improving the anti-leakage ability of the sealing ring 21.
[0027] Furthermore, the sealing cover 3 includes a pressure plate 31 that fits within the mounting groove 12. A cover plate 32 is fixedly connected to the pressure plate 31. The cover plate 32 fits within the placement groove on the reducer 1, which communicates with the mounting groove 12. The cover plate 32 is bolted to the reducer 1. The pressure plate 31 abuts the sealing ring 21 against the sidewall of the mounting groove 12. The cover plate 32 is bolted to the reducer 1, making installation and removal easy. Both the pressure plate 31 and the cover plate 32 are provided with a shaft groove for the output shaft 11 to pass through.
[0028] Furthermore, the inner edge of the sealing ring 21 is provided with a dustproof lip 4, which fits against the outer side of the output shaft 11. The dustproof lip 24 and the dustproof lip 4 are respectively provided on either side of the sealing lip 23. The dustproof lip 4 is used to prevent the ingress of external dust and other impurities, thereby preventing dust and impurities from damaging the sealing lip 23. In other words, the dustproof lip 24 and the dustproof lip 4 protect both sides of the sealing lip 23, preventing impurities from damaging the sealing lip 23 and causing oil leakage, thereby extending the service life and anti-leakage capability of the sealing ring 21.
[0029] Furthermore, the sealing ring 21, the debris prevention lip 24 and the dust prevention lip 4 are made in one piece.
[0030] Furthermore, the sealing ring 21, the debris prevention lip 24 and the dust prevention lip 4 are made of polytetrafluoroethylene, which has a low friction coefficient and good corrosion resistance and high temperature resistance.
[0031] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A synchronous counter-rotating speed reducer, comprising a speed reducer (1), wherein a worm gear and a gear set are provided in the speed reducer (1) to adjust the speed of an output shaft (11) on the speed reducer (1), characterized in that: The reducer (1) is provided with a mounting groove (12), the mounting groove (12) is coaxially arranged with the output shaft (11), and a sealing component (2) is arranged in the mounting groove (12); The sealing assembly (2) comprises a sealing ring (21) arranged in the installation groove (12), a compression spring (22) is installed in the groove inside the sealing ring (21), the compression spring (22) is arranged in an annular shape, a sealing lip (23) and an anti-trash lip (24) are respectively provided on the inner edge of the sealing ring (21), the sealing lip (23) and the anti-trash lip (24) are both fitted to the outer side of the output shaft (11), and a groove (25) for the compression spring (22) to pass through is formed between the anti-trash lip (24) and the sealing ring (21), and a sealing cover (3) is also detachably connected to the reducer (1).
2. A synchronous counter-rotating reducer according to claim 1, characterized in that: The sealing cover (3) comprises a pressing plate (31), the pressing plate (31) is matched with the mounting groove (12), a cover plate (32) is fixedly connected to the pressing plate (31), the cover plate (32) is matched with the placement groove on the reducer (1), the placement groove is connected with the mounting groove (12), and the cover plate (32) is connected to the reducer (1) by bolts.
3. A synchronous counter-rotating reducer according to claim 1, characterized in that: The inner edge of the sealing ring (21) is also provided with a dustproof lip (4), and the dustproof lip (4) is attached to the outer side of the output shaft (11).
4. A synchronous counter-rotating reducer according to claim 3, characterized in that: The anti-trash lip (24) and the anti-dust lip (4) are respectively arranged on both sides of the sealing lip (23).
5. A synchronous counter-rotating reducer according to claim 3, characterized in that: The sealing ring (21), the anti-trash lip (24) and the anti-dust lip (4) are made in one piece.
6. A synchronous counter-rotating reducer according to claim 3, characterized in that: The sealing ring (21), the anti-trash lip (24) and the anti-dust lip (4) are made of polytetrafluoroethylene.