一种高耐磨防漏油张紧轮
By incorporating a rotational positioning structure and a wear-resistant layer into the tensioner wheel body, the problem of bearing wear due to stress concentration is solved, service life is improved, and oil leakage prevention performance is enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN NANAN BUSINESS MASCH CO LTD
- Filing Date
- 2025-10-10
- Publication Date
- 2026-07-17
AI Technical Summary
The bearings of existing tensioning wheels are prone to wear due to stress concentration, resulting in a shortened service life.
A rotational positioning structure is installed in the wheel body of the tensioning wheel. The positioning bearing is positioned at the top of the shaft, and the stress is dispersed by the positioning frame and the balls to reduce bearing wear. A wear-resistant layer is installed on the outer ring of the wheel to improve wear resistance.
It effectively reduces bearing wear, extends the service life of the tensioner, and prevents oil leakage through a sealing structure, thus enhancing its oil leak prevention performance.
Smart Images
Figure CN224515820U_ABST
Abstract
Claims
1. A high wear resistant oil tight tensioner wheel characterized by: Its structure includes a tension arm (1); A fixed base (2) is connected to one end of the tensioning arm (1); The wear-resistant wheel structure (3) is rotatably connected to the other end of the tensioning arm (1); The wear-resistant wheel structure (3) includes a wheel body (31), a positioning groove (32), an assembly ring (33), a bearing (34), and a positioning frame (35). The positioning groove (32) is located on one side of the wheel body (31). The assembly ring (33) is located at the center of the inner wall of the positioning groove (32). The bearing (34) is tightly nested in the inner ring of the assembly ring (33). The end of the tension arm (1) is provided with a rotating shaft (11) that is rotatably embedded in the positioning groove (32) and fixedly sleeved with the inner ring of the bearing (34). The end of the rotating shaft (11) is provided with an annular positioning groove (12). The positioning frame (35) is simultaneously attached to the end faces of the assembly ring (33), the bearing (34), and the rotating shaft (11). The inner side of the positioning frame (35) is provided with a ball (36) that slides into the annular positioning groove (12). The two ends of the positioning frame (35) are each provided with a fixing bolt (37). The two fixing bolts (37) are respectively threaded to both sides of the assembly ring (33).
2. A high wear resistant oil tight tensioner wheel as claimed in claim 1, wherein: The end faces of the assembly ring (33), bearing (34), and shaft (11) facing the opening of the positioning groove (32) are flush.
3. A high wear resistant oil tight tensioner wheel as claimed in claim 1, wherein: The positioning frame (35) has a U-shaped structure, with two vertical sides of the U-shaped structure respectively attached to both sides of the assembly ring (33), and the two vertical sides of the U-shaped structure have internal threaded holes that are compatible with the fixing bolts (37).
4. A high wear resistant oil tight tensioner wheel as claimed in claim 1, wherein: It also includes a sealing cap (4), which is detachably connected to the opening of the positioning groove (32).
5. A high wear resistant oil tight tensioner as claimed in claim 1, wherein: The outer ring of the wheel body (31) is provided with a wear-resistant layer (38).
6. A high wear resistant oil retaining tensioning pulley as claimed in claim 3, wherein: Two balls (36) are provided and symmetrically slide into the left and right sides of the annular positioning groove (12).