电机用低磨损安装的轴承套
By combining the bearing sleeve and the retaining ring, the problem of damage during motor bearing assembly is solved, thus protecting the bearing and improving the smoothness of motor operation. This design is suitable for the production of high-speed motors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG FEIQUAN ELECTRIC CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-17
AI Technical Summary
The bearings in existing motors are easily damaged during assembly, leading to increased vibration and affecting the smoothness of motor operation, especially at high speeds.
The bearing adopts a combination structure of bearing sleeve and retaining ring. The rolling bearing is surrounded by the bearing sleeve and retaining ring. The bearing sleeve is tightly fitted with the motor housing, while the outer ring of the rolling bearing is in a normal fit with the bearing sleeve. This reduces direct impact on the bearing and protects the structural integrity of the bearing.
It effectively protects the bearing structure, improves the smoothness of motor operation, reduces damage during assembly, and is suitable for the production process requirements of high-speed motors.
Smart Images
Figure CN224520835U_ABST
Abstract
Claims
1. A low wear mounted bearing sleeve for an electric machine, characterized by: The bearing sleeve structure includes a bearing sleeve (1) and a retaining ring (2). A rolling bearing (3) is coaxially arranged inside the bearing sleeve (1). After the bearing sleeve (1) and the retaining ring (2) are engaged and fixed, they surround and fix the rolling bearing (3). The inner ring (4) of the rolling bearing (3) passes through and connects to the rotating shaft. Both the bearing sleeve (1) and the retaining ring (2) have a central hole that does not contact the rotating shaft. After the bearing sleeve (1) and the retaining ring (2) are combined with the rolling bearing (3), they are tightly connected to the motor housing (6).
2. A low wear mounted bearing sleeve for an electric machine as claimed in claim 1, characterized in that: The bearing sleeve (1) is a cylindrical structure with a cylindrical outer surface and a bearing mounting groove (7) formed on its inner side. The bearing mounting groove (7) is formed to match the size of the outer ring (8) of the rolling bearing (3). The bearing mounting groove (7) is coaxially arranged with the cylindrical surface. A snap-fit groove (9) is also provided at the opening of the bearing mounting groove (7). The snap-fit groove (9) and the fixing ring (2) are combined to form a fixed and restrictive space for the rolling bearing (3).
3. A low wear mounted bearing sleeve for an electric machine as claimed in claim 2, characterized in that: The bearing sleeve (1) is formed by turning a copper rod, and its outer surface is treated to be smooth. The depth of its bearing mounting groove (7) is 0.1 to 0.5 mm less than the width of the rolling bearing (3). A through hole (10) is opened at the bottom of the bearing mounting groove (7). The diameter of the through hole (10) covers the outer ring (8) of the rolling bearing (3) and does not contact the inner ring (4) of the rolling bearing (3).
4. A low wear mounted bearing sleeve for an electric machine as set forth in claim 3, characterized in that: The fixing ring (2) is made of elastic metal stamping and has a fixing ring (11), a pressing ring (12) and an elastic sheet (13). The fixing ring (11) and the pressing ring (12) are bent at an angle to form an integral ring-shaped embedded structure and are embedded and fixed in the buckle groove (9). The fixing ring (11) is fixed to the side of the buckle groove (9). The pressing ring (12) forms a space restriction structure on the side of the rolling bearing (3). An angled elastic sheet (13) is formed on the inner side of the pressing ring (12). There are multiple elastic sheets (13) arranged circumferentially. The elastic sheets (13) are pressed against the outer ring (8) of the rolling bearing (3).
5. A low wear mounted bearing sleeve for an electric machine as set forth in claim 4, characterized in that: The fixing ring (11) of the fixing ring (2) is tightly connected to the inside of the buckle groove (9), and the fixing ring (2) is made of stainless steel material.