防尘密封式深沟球轴承
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LANRUN PRECISION BEARING CO LTD
- Filing Date
- 2025-10-24
- Publication Date
- 2026-07-17
AI Technical Summary
[0004]上述专利文献中，公开了一种深沟球轴承以满足深沟球轴承高承载工况的要求；上述专利的深沟球轴承虽然能够在一定程度上提高深沟球轴承的承载能力，但在深沟球轴承实际使用的过程中发现，深沟球轴承存在外界污染物(如灰尘、砂粒、金属碎屑、纤维杂质等)侵入的风险，污染物会随滚动体进入滚道，相当于在摩擦面之间加入“磨料”，导致滚道和钢球表面被划伤、磨损，甚至出现凹坑或剥落，直接破坏轴承的精度和结构完整性，较大的杂质可能卡在滚动体与滚道之间，造成轴承“卡滞”，引发设备运转异响、振动加剧，严重时可能导致轴系卡死，甚至引发设备停机或安全事故
[0016]通过内圈主体以及外圈外侧设置的密封组件以及固定组件，能够对内圈主体以及外圈的连接处进行错位组合密封，减少该深沟球轴承受到污染以及润滑剂泄露的风险，同时，防尘组件中的防尘盖能够在外圈以及内圈主体最外侧进行防尘保护，降低污染物与密封组件接触后影响密封效果的情况，进而保证该深沟球轴承具有良好的防尘密封性能，有利于提高该深沟球轴承的适用范围。
Smart Images
Figure CN224515697U_ABST
Abstract
Claims
1. A dust-sealed deep groove ball bearing, characterized by: It includes an inner ring assembly (1) and an outer ring (2). The inner ring assembly (1) includes an inner ring body (11). An assembly inner cylinder (4) is provided on the inner side of the inner ring body (11). Sealing components (3) and fixing components (5) are provided on both sides of the outer ring (2). Fixing components (5) are provided at both ends of the assembly inner cylinder (4). The outer ring (2) has an installation groove (21) on its edge. The installation groove (21) is correspondingly set with the sealing component (3). The sealing component (3) includes a sealing cover (31), an installation ring (32) and a sealing ring (33). The inner ring of the sealing cover (31) is provided with a sealing ring (33), and the outer ring of the sealing cover (31) is provided with an installation ring (32). The installation ring (32) is engaged with the outer ring (2), and the edge of the sealing ring (33) slides against the side of the inner ring body (11).
2. The dust-sealed deep groove ball bearing of claim 1, wherein: The inner ring body (11) is provided with a fixing strip (12) on the inner side, and the inner cylinder (4) is provided with a fixing groove (41) on the outer side. The fixing groove (41) and the fixing strip (12) are engaged and slid together. The inner ring body (11) is provided with a retainer (13) on the outer side, and multiple steel balls (14) are arranged in a ring inside the retainer (13).
3. The dust-sealed deep groove ball bearing of claim 1, wherein: The fixing component (5) includes a fixing ring (51), a sealing ring plate (52), and a second sealing ring (53). The fixing ring (51) is threadedly connected to the inner cylinder (4). The fixing ring (51) has a sealing ring plate (52) at its end. The sealing ring plate (52) has a second sealing ring (53) on its outer ring. The second sealing ring (53) is in contact with the outer side of the sealing cover (31).
4. The dust-sealed deep groove ball bearing of claim 1, wherein: The outer ring (2) is provided with an assembly ring seat (22) on its side. The dustproof component (6) includes a dustproof cover (61) and an assembly insert (62). The outer ring side of the dustproof cover (61) is provided with an assembly insert (62), and the assembly insert (62) is engaged with the assembly ring seat (22).
5. The dust-sealed deep groove ball bearing of claim 3, wherein: The sealing annular plate (52) has a stop ring (54) in the middle of its side surface, and a dustproof groove is formed between the stop ring (54) and the fixing ring (51).
6. The dustproof, sealed deep groove ball bearing according to claim 4, characterized in that: The inner side of the dust cover (61) is provided with a second stop ring (63), which engages and slides with the dust groove.