圆柱孔外球面轴承
By introducing multiple rolling elements and buffer rubber pads into the cylindrical bore outer spherical bearing, the wear and installation resistance caused by friction between the inner ring and the shaft are solved, resulting in easier installation and a longer service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAOCHENG JINYU OUTER SPHERICAL BEARING CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-17
AI Technical Summary
When a cylindrical bore spherical bearing is installed in the middle section of a shaft, the friction between the inner ring and the shaft causes wear and high installation resistance, affecting ease of installation.
The bearing employs multiple rolling elements between the inner and outer rings, a cage, a positioning connecting bushing, a position limiting plate, an arc-shaped extrusion wedge, a limiting structure, and a buffer rubber pad. Heat is dissipated through spiral and cylindrical ventilation holes, the buffer rubber pad reduces friction, and the sealing structure prevents impurities from entering, thus improving ease of installation.
It reduces wear on the cylindrical shaft surface, lowers installation resistance, improves installation efficiency and reliability, and extends service life.
Smart Images

Figure CN224515706U_ABST
Abstract
Claims
1. A cylindrical bore spherical bearing, comprising an inner ring (1), an outer ring (2), a positioning connecting sleeve (3), a position limiting plate (4), a connecting structure, a sealing structure, a cooling structure, an arc-shaped extrusion wedge (5), a limiting structure, a position limiting slide plate (6), and a buffer rubber pad (7); the outer ring (2) is located outside the inner ring (1), and a plurality of rolling elements are provided between the outer ring (2) and the inner ring (1), with a cage provided outside the plurality of rolling elements; the positioning connecting sleeve (3) is bolted to the front side of the inner ring (1); characterized in that: The position limiting plate (4) is rotatably connected to the rear side of the inner ring (1) of the outer spherical bearing; the connecting structure is located on the front side of the inner ring (1) of the outer spherical bearing; the sealing structure is located on the outer side of the inner ring (1) of the outer spherical bearing; the cooling structure is located on the inner side of the inner ring (1) of the outer spherical bearing; multiple arc-shaped extrusion blocks (5) are provided, and multiple arc-shaped extrusion blocks (5) are circumferentially arrayed and fixedly connected to the front side of the position limiting plate (4); the limiting structure is located on the inner side of the inner ring (1) of the outer spherical bearing; multiple position limiting slide plates (6) are provided, and multiple position limiting slide plates (6) are circumferentially arrayed and slidably connected to the inner side of the inner ring (1) of the outer spherical bearing; multiple buffer rubber pads (7) are provided, and multiple buffer rubber pads (7) are respectively fixedly connected to the inner side of multiple position limiting slide plates (6).
2. The cylindrical bore outer spherical surface bearing of claim 1, wherein: The cooling structure includes a spiral ventilation hole (101) and a cylindrical ventilation hole (302); the spiral ventilation hole (101) is opened in the middle of the inner ring (1) of the outer spherical bearing; there are two cylindrical ventilation holes (302), which are respectively opened in the upper part of the positioning connecting bushing (3) and the upper part of the position limiting plate (4), and the two cylindrical ventilation holes (302) are respectively connected to the front and rear ends of the spiral ventilation hole (101).
3. The cylindrical bore outer spherical surface bearing of claim 1, wherein: The connection structure includes a position limiting slot (103) and a position limiting platform (301); the position limiting slot (103) is opened on the front side of the inner ring (1) of the outer spherical bearing; the position limiting platform (301) is fixedly connected to the rear side of the positioning connecting bushing (3), and the position limiting platform (301) is inserted into the inner side of the position limiting slot (103).
4. The cylindrical bore outer spherical surface bearing of claim 1, wherein: The connection structure also includes positioning threaded holes (102) and sealing snap-fit grooves (104); multiple positioning threaded holes (102) are provided, and the multiple positioning threaded holes (102) are respectively opened on the rear side of the inner ring (1) of the outer spherical bearing or on the upper part of the position limiting plate (4); multiple sealing snap-fit grooves (104) are provided, and the multiple sealing snap-fit grooves (104) are respectively opened on the front and rear sides of the inner ring (1) of the outer spherical bearing or on the front and rear sides of the outer ring (2) of the outer spherical bearing.
5. The cylindrical bore spherical bearing as described in claim 1, characterized in that: The sealing structure includes a bearing seal cover (105) and a sealing rubber ring (106); there are two bearing seal covers (105), which are located on the front and rear sides of the inner ring (1) of the outer spherical bearing, respectively, and both bearing seal covers (105) are snapped between the inner ring (1) and the outer ring (2) of the outer spherical bearing; there are four sealing rubber rings (106), which are fixedly connected to the inner and outer sides of the two bearing seal covers (105).
6. The cylindrical bore outer spherical surface bearing of claim 1, wherein: The limiting structure includes an arc-shaped pressure-bearing inclined block (601) and a reset elastic element (602); multiple arc-shaped pressure-bearing inclined blocks (601) are provided, and multiple arc-shaped pressure-bearing inclined blocks (601) are respectively fixedly connected to the rear side of multiple position limiting slide plates (6); multiple reset elastic elements (602) are provided, and multiple position limiting slide plates (6) are elastically connected to the inner ring (1) of the outer spherical bearing through multiple reset elastic elements (602).