A rubber sealing ring for motorcycle oil seals
Patent Information
- Application Number
- CN202522299434.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-10-30
AI Technical Summary
[0003]一方面，密封环主体多采用单一橡胶材质，长期处于轴体旋转产生的离心力、油液压力及温度变化环境中，易出现结构变形、强度不足的情况，导致密封环与轴体贴合度下降，引发油液泄漏，不仅增加维护成本，还可能因油液不足造成传动部件磨损，影响摩托车正常运行，而现有常规加强结构难以在保证弹性的同时实现全方位强度提升；
[0014]本实用新型的有益效果：通过在油封主体内部设置“丰”字形弹簧钢材质的弹性加强件，能从多方位提升油封主体的结构强度与抗形变能力，有效避免其因长期受离心力、油液压力作用出现变形撕裂，延长使用寿命；同时通过在油封主体朝向油液侧内嵌带磁吸片的金属盒，可精准吸附油液中的金属杂质，防止杂质加剧轴体与密封环磨损、影响油液性能，且弹性加强件与磁吸片的结构设计互不干涉，协同实现了密封环结构强化与油液杂质过滤功能，显著提升摩托车油封系统的密封可靠性与长期运行稳定性。
Smart Images
Figure CN224706294U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing elements, in particular to a rubber sealing ring for motorcycle oil seals. Background Art
[0002] During the operation of a motorcycle, the rubber sealing ring of the oil seal is a key component for ensuring the sealing between the shaft and the oil system, and its performance directly affects the stability and service life of the motorcycle transmission system. At present, the rubber sealing rings of traditional motorcycle oil seals generally have two core problems:
[0003] On the one hand, the main body of the sealing ring is mostly made of a single rubber material. When exposed to the centrifugal force generated by shaft rotation, oil pressure and temperature changes for a long time, it is prone to structural deformation and insufficient strength, which reduces the fitting degree between the sealing ring and the shaft, causing oil leakage. This not only increases maintenance costs, but also may cause wear of transmission components due to insufficient oil, affecting the normal operation of the motorcycle. Existing conventional reinforcing structures are difficult to achieve comprehensive strength improvement while ensuring elasticity;
[0004] On the other hand, during long-term operation of the motorcycle transmission system, component wear will generate metal impurities (such as iron filings and metal particles). After these impurities are mixed into the oil, they will not only aggravate the wear of the shaft and the sealing ring, shorten the service life of the sealing ring, but also may block the oil passage, affect the lubrication performance of the oil, and further damage the transmission components. Existing oil seals lack a targeted impurity filtration structure, cannot effectively adsorb and treat metal impurities in the oil, and can hardly meet the requirement of long-term stable operation. Summary of the Utility Model
[0005] To solve the technical problems existing in the background art, the utility model provides a rubber sealing ring for a motorcycle oil seal.
[0006] The rubber sealing ring for a motorcycle oil seal proposed by the utility model comprises an oil seal main body, an elastic reinforcing member is arranged inside the oil seal main body to improve the strength of the oil seal main body, a plurality of metal boxes are embedded and fixed on the inner side surface of the oil seal main body facing the oil, and a magnetic attraction sheet is adsorbed and fixed inside each metal box to adsorb metal impurities in the oil.
[0007] Further, the elastic reinforcing member is made of spring steel and arranged in a "丰"-shaped structure.
[0008] Further, the metal box is provided with an opening, and the opening is located on a side of the oil seal main body facing the oil.
[0009] Further, the metal boxes are uniformly distributed along the circumference of the oil seal main body, and an end surface of the magnetic attraction sheet facing inward is flush with the opening of the metal box.
[0010] Further, an elastic restraining member is further fixed on the inner side of the oil seal main body facing the oil, an inner lip is arranged on the inner side of the oil seal main body, and the elastic restraining member corresponds to the inner lip, so as to improve the sealing performance between the inner lip and the shaft body.
[0011] Further, a limiting groove is provided on the inner side of the oil seal main body facing the oil, and the elastic restraining member is fixed inside the limiting groove.
[0012] Further, the elastic restraining member is configured as a spring ring.
[0013] Further, an outer lip is arranged on the outer side of the oil seal main body, and the bottom end of the outer lip is inclined toward the outer side to block external dust from entering the interior of the oil seal main body.
[0014] Beneficial effects of the present utility model: By arranging an elastic reinforcing member made of spring steel in a "feng" (丰) shape inside the oil seal main body, the structural strength and deformation resistance of the oil seal main body can be improved in multiple directions, effectively preventing deformation and tearing of the oil seal main body caused by long-term exposure to centrifugal force and oil pressure, thereby prolonging the service life; meanwhile, by embedding a metal box with a magnetic suction piece on the side of the oil seal main body facing the oil, metal impurities in the oil can be accurately adsorbed, preventing the impurities from aggravating the wear between the shaft body and the seal ring and affecting the performance of the oil, and the structural designs of the elastic reinforcing member and the magnetic suction piece do not interfere with each other, which synergistically realize the functions of seal ring structure reinforcement and oil impurity filtration, and significantly improve the sealing reliability and long-term operation stability of the motorcycle oil seal system. Description of Drawings
[0015] Figure 1 is an exploded structural schematic diagram of the present utility model;
[0016] Figure 2 is a half sectional view of the oil seal main body in the present utility model;
[0017] Figure 3 is an assembly structural schematic diagram of the present utility model;
[0018] Figure 4 is a half sectional view of the present utility model after assembly.
[0019] In the figure: 1, oil seal main body; 11, inner lip; 12, outer lip; 13, limiting groove; 2, elastic reinforcing member; 3, metal box; 4, magnetic suction piece; 5, elastic restraining member. Detailed Description of the Embodiments
[0020] Refer to Figure 1-4, The utility model provides a rubber sealing ring for a motorcycle oil seal, comprising an oil seal body 1, wherein the oil seal body 1 is made of oil-resistant rubber material, which can adapt to the oil environment and temperature changes during the operation of a motorcycle. An elastic reinforcing member 2 is embedded and fixed inside the oil seal body 1, the elastic reinforcing member 2 is made of spring steel, which has both high strength and excellent elasticity. It can ensure structural support and expand or contract synchronously with the deformation of the oil seal body 1 to avoid rigid fracture. Moreover, the elastic reinforcing member 2 is designed in a "丰"-shaped structure, which can reinforce the oil seal body 1 in multiple directions from the radial and circumferential directions, effectively disperse the pressure and friction force applied to the oil seal body 1 during the rotation of the shaft, significantly improve the strength of the oil seal body 1, prevent deformation, tearing and other problems after long-term use, and prolong the service life of the sealing ring;
[0021] In order to filter metal impurities in oil, a plurality of metal boxes 3 are embedded and fixed on the inner side of the oil seal body 1 facing the oil. Each metal box 3 has a cavity structure inside, and is provided with an opening facing the oil direction on the inner side of the oil seal body 1. The metal boxes 3 are evenly distributed along the circumference of the inner side of the oil seal body 1, which can ensure coverage of the entire area of the inner side of the oil seal body 1 for oil and avoid blind areas for impurity filtration. A magnetic attraction sheet 4 is adsorbed and fixed inside each metal box 3, the magnetic attraction sheet 4 is made of strong magnetic material, which can generate a stable magnetic field to adsorb iron scraps, metal particles and other impurities in the oil. Meanwhile, the end face of the magnetic attraction sheet 4 facing the inner side is flush with the opening of the metal box 3, which not only ensures that the magnetic attraction sheet 4 can directly contact the oil to maximize the adsorption area, but also avoids frictional interference with the shaft caused by the magnetic attraction sheet 4 protruding from the opening of the metal box 3, ensuring smooth rotation of the shaft;
[0022] In order to further improve the sealing performance between the sealing ring and the shaft, an elastic restraining member 5 is also fixed on the inner side of the oil seal body 1 facing the oil. The elastic restraining member 5 is selected as a spring coil and has continuous elastic contraction force. Correspondingly, an inner lip 11 is integrally formed on the inner side of the oil seal body 1, the inner lip 11 is a sealing part in direct contact with the shaft. The elastic restraining member 5 corresponds to the position of the inner lip 11, and a limiting groove 13 adapted to the elastic restraining member 5 is provided on the inner side of the oil seal body 1 facing the oil. The elastic restraining member 5 is fixed inside the limiting groove 13 by vulcanization or clamping, and the limiting groove 13 can position the elastic restraining member 5 to prevent displacement during use. The elastic force generated by the elastic restraining member 5 can continuously squeeze the inner lip 11 inward, so that the inner lip 11 closely fits the surface of the shaft. Even if the shaft has slight runout or wear during rotation, the inner lip 11 can be compensated in time under the action of the elastic restraining member 5, effectively preventing oil from leaking from the gap between the inner lip 11 and the shaft;
[0023] To prevent external dust, mud, and other impurities from entering the oil seal body 1 and affecting its sealing performance or causing shaft wear, an outer lip 12 is integrally formed on the outer side of the oil seal body 1. The outer lip 12 is also made of elastic rubber, with its bottom end tilted outward to form an inclined structure. This inclined structure can form a "dust barrier" at the gap between the oil seal body 1 and the external components. When dust, mud, and other impurities generated during motorcycle operation invade the oil seal body 1, the inclined outer lip 12 can block the impurities. At the same time, it uses its own elasticity to fit the surface of the external components, further reducing the entry channel for impurities, ensuring the cleanliness of the sealing environment inside the oil seal body 1, and indirectly extending the service life of the inner lip 11 and the shaft.
[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A rubber sealing ring for a motorcycle oil seal, comprising an oil seal body (1), characterized in that, An elastic reinforcing member (2) is arranged inside the oil seal main body (1) to improve the strength of the oil seal main body (1). A plurality of metal boxes (3) are embedded and fixed on the inner side of the oil seal main body facing the oil liquid, and a magnetic suction sheet (4) is adsorbed and fixed inside each metal box (3) to adsorb metal impurities in the oil liquid.
2. The rubber sealing ring of the motorcycle oil seal according to claim 1, characterized in that, The elastic reinforcing member (2) is made of spring steel and arranged in a "Feng"-shaped structure.
3. The rubber sealing ring of the motorcycle oil seal according to claim 1, characterized in that, The metal box (3) is provided with an opening, and the opening is located on the side of the oil seal main body (1) facing the oil liquid.
4. The rubber sealing ring of the motorcycle oil seal according to claim 3, characterized in that, The metal boxes (3) are evenly distributed along the circumference of the oil seal main body (1), and the inward end face of the magnetic suction sheet (4) is flush with the opening of the metal box (3).
5. The rubber sealing ring for a motorcycle oil seal according to claim 1, characterized in that, An elastic restraining member (5) is further fixed on the inner side of the oil seal main body (1) facing the oil liquid, an inner lip (11) is arranged on the inner side of the oil seal main body (1), and the elastic restraining member (5) corresponds to the inner lip (11) to improve the sealing performance between the inner lip (11) and the shaft body.
6. The rubber sealing ring of the motorcycle oil seal according to claim 5, characterized in that, A limiting groove (13) is provided on the inner side of the oil seal main body (1) facing the oil liquid, and the elastic restraining member (5) is fixed inside the limiting groove (13).
7. The rubber sealing ring for a motorcycle oil seal according to claim 5, characterized in that, The elastic restraining member (5) is configured as a spring ring.
8. The rubber sealing ring of the motorcycle oil seal according to claim 1, characterized in that, An outer lip (12) is arranged on the outer side of the oil seal main body (1), and the bottom end of the outer lip (12) inclines outward to prevent external dust from entering the interior of the oil seal main body (1).