一种轴承安装结构
By designing the gasket adjustment method in the bearing mounting structure, the problem of the inability to adjust the air gap on both sides of the protective bearing was solved, achieving precise adjustment and simplifying the installation process, thus improving installation reliability and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GREE ELECTRIC APPLIANCE INC OF ZHUHAI
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the air gap between the two sides of the bearing cannot be adjusted to protect the bearing, which makes the adjustment complicated and affects the rotor accuracy.
Design a bearing mounting structure that precisely adjusts the air gap on both sides of the protective bearing by adjusting the thickness of the first and second washers, thus avoiding repeated machining of the rotor.
It enables precise adjustment of the air gap on both sides of the protective bearing, simplifies the adjustment process, reduces the impact on rotor accuracy, and improves installation reliability and convenience.
Smart Images
Figure CN224515705U_ABST
Abstract
Claims
1. A bearing mounting structure, characterized in that: include: A rotating shaft (5) is fitted with a first bearing (9) and a second bearing (4). The rotating shaft (5) has two limiting structures. The first bearing (9) and the second bearing (4) are located between the two limiting structures, and there is a gap between the first bearing (9), the second bearing (4) and the limiting structures. The first bearing (9) and the second bearing (4) are fitted onto a mounting base (2). A second washer (3) is located between the first bearing (9) and the second bearing (4). The mounting base (2) is fitted onto a base (1). Along the axis of the rotating shaft (5) The base (1) is provided with a first washer (6) at its end; the rotating shaft (5) has a stepped structure, the stepped structure including a first section, a second section and a third section, the first section, the second section and the third section are arranged sequentially along the axial direction of the rotating shaft (5), the diameters of the first section, the second section and the third section increase sequentially, the first bearing (9) and the second bearing (4) are located on the second section, and there is a gap between the inner ring end of the second bearing (4) and the third section, the step formed between the second section and the third section constitutes a limiting structure; A retaining ring (10) is fitted on the first segment. The retaining ring (10) is L-shaped. The inner ring end of the first bearing (9) has the gap with the retaining ring (10). The retaining ring (10) constitutes another limiting structure.
2. The bearing mounting structure according to claim 1, characterized by: The inner rings of the first bearing (9) and the second bearing (4) are fitted on the rotating shaft (5), and the outer rings of the first bearing (9) and the second bearing (4) are fitted inside the mounting base (2). The inner wall of the mounting base (2) has a protrusion. Along the axial direction of the rotating shaft (5), the first bearing (9), the second bearing (4) and the protrusion are arranged in sequence, and the end of the outer ring of the second bearing (4) abuts against the protrusion.
3. The bearing mounting structure according to claim 1, characterized by: The mounting base (2) is also fitted with a cover plate (7), the first bearing (9) is located between the cover plate (7) and the second bearing (4), the cover plate (7) abuts against the outer ring end of the first bearing (9), and the cover plate (7) is connected to the mounting base (2) by a fastener.
4. The bearing mounting structure according to claim 1, characterized by: Along the axial direction of the rotating shaft (5), the first washer (6) is located between the base (1) and the mounting seat (2).
5. The bearing mounting structure according to claim 1, characterized by: A thrust plate (5.1) is also provided on the rotating shaft (5), and an axial bearing (11) is provided on the thrust plate (5.1). Along the axial direction of the rotating shaft (5), the first washer (6) is located between the base (1) and the axial bearing (11).
6. The bearing mounting structure according to claim 1, characterized by The gap between the first bearing (9) and one of the limiting structures is D1, the gap between the second bearing (4) and another limiting structure is D2, along the axial direction of the rotating shaft (5), the thickness of the first washer (6) is L1, the thickness of the second washer (3) is L2, and the preset gap is D0. It satisfies the following: when D1+D2=2D0, the thickness L1 of the first washer (6) is adjusted; when D1+D2≠2D0, the thickness L2 of the second washer (3) is adjusted.
7. The bearing mounting structure according to claim 6, characterized by When D1+D2=2D0, if D1>D2, increase the thickness L1 of the first washer (6), otherwise decrease the thickness L1 of the first washer (6).
8. The bearing mounting structure according to claim 6, characterized by When D1+D2≠2D0, the thickness L2 of the second washer (3) is increased when D1+D2>2D0, and the thickness L2 of the second washer (3) is decreased when D1+D2>2D0.