A composite bushing
By designing an movable gap and a lubrication column structure between the inner and outer cylinders of the bushing, and combining the slope protrusion and tooth groove combination for limiting, the problem of decreased lubrication performance of graphite self-lubricating bushings is solved, and the continuous lubrication effect of composite bushings is achieved.
CN224479186UActive Publication Date: 2026-07-10ZHEJIANG CHANNOV AUTO PARTS CO
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG CHANNOV AUTO PARTS CO
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-10
Smart Images
Figure CN224479186U_ABST
Abstract
This utility model discloses a composite bushing, including an inner sleeve body and an outer sleeve body rotatably connected to the inner sleeve body. A movable gap exists between the outer sleeve body and the inner sleeve body. The inner sleeve body has several rows of lubrication post mounting holes arranged axially at intervals and in a circular array around the axis. These lubrication post mounting holes also extend radially along the inner sleeve body. Graphite lubrication posts are embedded within the lubrication post mounting holes. One end of each graphite lubrication post has a spherical head that extends into the movable gap. Each spherical head has a sloping protrusion on the same side, which is connected to the outer sleeve body. The distance A from the end of the sloping protrusion closest to the spherical head to the inner sleeve body is the same as the distance B from the end of the sloping protrusion furthest from the spherical head to the inner sleeve body, where B < A. This bushing features self-lubrication and long-lasting lubrication, with complete overall functionality and strong practicality.
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