CN210461416U - Sealing ring component for electric tool bearing - Google Patents
Sealing ring component for electric tool bearing Download PDFInfo
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- CN210461416U CN210461416U CN201921077657.2U CN201921077657U CN210461416U CN 210461416 U CN210461416 U CN 210461416U CN 201921077657 U CN201921077657 U CN 201921077657U CN 210461416 U CN210461416 U CN 210461416U
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- sealing ring
- outer lip
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Abstract
The utility model relates to a sealing ring component for electric tool bearing, the sealing ring includes the outer lip of sealing ring, sealing ring connecting portion and the inner lip of sealing ring, the outer lip of sealing ring is connected with on the excircle of sealing ring connecting portion, the inner lip of sealing ring is connected with on the inner circle of sealing ring connecting portion, the rebound groove is opened on the outer lip of sealing ring, the outer disc of the outer lip of sealing ring is connected with the rear end face through the connecting conical surface, the vertical edge covering and the horizontal edge covering are connected with on the sealing ring connecting portion; a sealing ring framework is arranged in the sealing ring connecting part, and the excircle end of the sealing ring framework is provided with a vertical bending edge; the vertical bending edge is wrapped by the sealing ring connecting part, the vertical wrapping edge and the horizontal wrapping edge; the cross section of the rebound groove is a semicircular groove body, and the ratio of the depth of the rebound groove to the overall width of the outer lip of the sealing ring is (0.41-0.43): 1.00. The utility model discloses the intensity of bearing seal circle outer lip has been increased, make the utility model discloses a sealing washer subassembly is difficult for being popped out under the condition that receives the axial force.
Description
Technical Field
The utility model relates to a sealing washer structure for the bearing, specifically speaking are sealing washer subassembly for electric tool bearing.
Background
The development of tools has been accompanied by the development of human civilization, which is a construction that is not free from the continuous updating and use of labor tools. In 1859, the emergence of electric tools was a major breakthrough of human beings on labor tools. With the continuous progress of society, the demand for electric tools is higher and higher.
The use environment of the electric tool is generally severe (much dust, much moisture and high temperature), and many electric tools (angle grinders, cutting machines, electric drills and the like) are directly held and operated by hands, so that the temperature rise cannot be too high when the electric tool is used, and the vibration cannot be too large.
The electric tool bearing mainly comprises an outer ring, an inner ring, a rolling body, grease and a sealing ring. The rolling body is arranged between the outer ring and the inner ring, the rolling body is in a spherical shape, the sealing ring is fixed on the outer ring to play a role in preventing dust and grease from leaking outwards, and the grease forms an oil film to play a role in lubrication.
Because the power of the electric tool is high and the rotating speed is high, the bearing matched with the electric tool must resist high speed.
Disclosure of Invention
The utility model aims at overcoming the not enough of existence among the prior art, provide one kind and guarantee under the high-speed operation condition that the sealed effectual sealing washer subassembly for electric tool bearing of bearing.
According to the technical scheme provided by the utility model, the sealing ring component for the bearing of the electric tool comprises a sealing ring and a sealing ring framework; the sealing ring comprises a sealing ring outer lip, a sealing ring connecting part and a sealing ring inner lip, the outer circle of the sealing ring connecting part is integrally connected with the sealing ring outer lip, the inner circle of the sealing ring connecting part is integrally connected with the sealing ring inner lip, the sealing ring outer lip is provided with a rebound groove, the outer circle surface of the sealing ring outer lip is connected with the rear end surface through a connecting conical surface, and the sealing ring connecting part is integrally connected with a vertical edge covering and a horizontal edge covering; a sealing ring framework is arranged in the sealing ring connecting part, and the excircle end of the sealing ring framework is provided with a vertical bending edge; the vertical bending edge is wrapped by the sealing ring connecting part, the vertical wrapping edge and the horizontal wrapping edge;
the cross section of the rebound groove is a semicircular groove body, and the ratio of the depth of the rebound groove to the overall width of the outer lip of the sealing ring is (0.41-0.43): 1.00.
The ratio of the width of the outer circular surface of the outer lip of the sealing ring to the whole width of the outer lip of the sealing ring is (0.41-0.43): 1.00.
The included angle between the connecting conical surface and the axis of the sealing ring is 22-28 degrees.
The ratio of the distance between the lower end part of the connecting conical surface and the inner circle of the horizontal wrapping edge to the whole width of the outer lip of the sealing ring is (1.19-1.21): 1.00.
The ratio of the whole width of the outer lip of the sealing ring to the whole width of the sealing ring is 1.00 (1.28-1.30).
The utility model increases the strength of the outer lip of the bearing sealing ring, so that the sealing ring component of the utility model is not easy to be popped out under the condition of axial force;
after the utility model is installed and used, the interference fit between the sealing ring component and the dust-proof groove of the bearing outer ring can be increased, and the sealing tightness is increased; can also make the utility model discloses a sealing washer subassembly closely cooperates with bearing inner race dustproof groove flange, improves the inseparable degree of sealing washer subassembly and dustproof groove cooperation, prevents that the sealing washer subassembly from beating the phenomenon of changeing and producing in the dustproof groove.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of the outer lip of the middle seal ring according to the present invention.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
The utility model discloses a seal ring component for electric tool bearing, which comprises a seal ring 1 and a seal ring framework 2; the sealing ring 1 comprises a sealing ring outer lip 11, a sealing ring connecting part 12 and a sealing ring inner lip 13, the outer circle of the sealing ring connecting part 12 is integrally connected with the sealing ring outer lip 11, the inner circle of the sealing ring connecting part 12 is integrally connected with the sealing ring inner lip 13, the sealing ring outer lip 11 is provided with a rebound groove 14, the outer circle surface and the rear end surface of the sealing ring outer lip 11 are connected through a connecting conical surface 15, and the sealing ring connecting part 12 is integrally connected with a vertical edge covering 16 and a horizontal edge covering 17; a sealing ring framework 2 is arranged in the sealing ring connecting part 12, and the excircle end of the sealing ring framework 2 is provided with a vertical bending edge 21; the vertical bending edge 21 is wrapped by the sealing ring connecting part 12, the vertical wrapping edge 16 and the horizontal wrapping edge 17;
the cross section of the rebound groove 14 is a semicircular groove body, and the ratio of the depth of the rebound groove 14 to the overall width H2 of the outer lip 11 of the sealing ring is (0.41-0.43): 1.00.
Like this, increased bearing seal circle outer lip 11's intensity, makeed the utility model discloses a sealing washer subassembly is difficult for being popped out under the condition of receiving the axial force.
The ratio of the outer circular face lip width H1 of the outer lip 11 of the sealing ring to the overall width H2 of the outer lip 11 of the sealing ring is (0.41-0.43): 1.00, the included angle β between the connecting conical surface 15 and the axis of the sealing ring 1 is 22-28 degrees, and the ratio of the distance H3 between the lower end part of the connecting conical surface 15 and the inner circle of the horizontal edge covering 17 to the overall width H2 of the outer lip 11 of the sealing ring is (1.19-1.21): 1.00.
Therefore, the interference fit between the sealing ring assembly and the dust-proof groove of the bearing outer ring can be ensured, and the sealing tightness is improved; can also make the utility model discloses a sealing washer subassembly closely cooperates with bearing inner race dustproof groove flange, improves the inseparable degree of sealing washer subassembly and dustproof groove cooperation, prevents that the sealing washer subassembly from beating the phenomenon of changeing and producing in the dustproof groove.
The ratio of the whole width H2 of the outer lip 11 of the sealing ring to the whole width H4 of the sealing ring 1 is 1.00 (1.28-1.30).
Claims (5)
1. A seal ring component for a bearing of an electric tool comprises a seal ring (1) and a seal ring framework (2); the sealing ring (1) comprises a sealing ring outer lip (11), a sealing ring connecting part (12) and a sealing ring inner lip (13), the sealing ring outer lip (11) is integrally connected to the outer circle of the sealing ring connecting part (12), the sealing ring inner lip (13) is integrally connected to the inner circle of the sealing ring connecting part (12), a rebound groove (14) is formed in the sealing ring outer lip (11), the outer circular surface and the rear end surface of the sealing ring outer lip (11) are connected through a connecting conical surface (15), and a vertical edge covering (16) and a horizontal edge covering (17) are integrally connected to the sealing ring connecting part (12); a sealing ring framework (2) is arranged in the sealing ring connecting part (12), and the excircle end of the sealing ring framework (2) is provided with a vertical bending edge (21); the vertical bending edge (21) is wrapped by the sealing ring connecting part (12), the vertical wrapping edge (16) and the horizontal wrapping edge (17);
the method is characterized in that: the cross section of the rebound groove (14) is a semicircular groove body, and the ratio of the depth of the rebound groove (14) to the overall width of the outer lip (11) of the sealing ring is (0.41-0.43): 1.00.
2. The seal ring assembly for a power tool bearing according to claim 1, wherein: the ratio of the outer circle face lip width of the outer lip (11) of the sealing ring to the whole width of the outer lip (11) of the sealing ring is (0.41-0.43): 1.00.
3. The seal ring assembly for a power tool bearing according to claim 1, wherein: the included angle between the connecting conical surface (15) and the axis of the sealing ring (1) is 22-28 degrees.
4. A seal ring assembly for a bearing of a power tool according to claim 1 or 3, wherein: the ratio of the distance between the lower end part of the connecting conical surface (15) and the inner circle of the horizontal wrapping edge (17) to the whole width of the outer lip (11) of the sealing ring is (1.19-1.21): 1.00.
5. The seal ring assembly for a power tool bearing according to claim 1, wherein: the ratio of the whole width of the outer lip (11) of the sealing ring to the whole width of the sealing ring (1) is 1.00 (1.28-1.30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921077657.2U CN210461416U (en) | 2019-07-10 | 2019-07-10 | Sealing ring component for electric tool bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921077657.2U CN210461416U (en) | 2019-07-10 | 2019-07-10 | Sealing ring component for electric tool bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210461416U true CN210461416U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921077657.2U Active CN210461416U (en) | 2019-07-10 | 2019-07-10 | Sealing ring component for electric tool bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN210461416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307260A (en) * | 2019-07-10 | 2019-10-08 | 无锡诚石轴承有限公司 | Electric tool bearing seal ring assembly |
-
2019
- 2019-07-10 CN CN201921077657.2U patent/CN210461416U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307260A (en) * | 2019-07-10 | 2019-10-08 | 无锡诚石轴承有限公司 | Electric tool bearing seal ring assembly |
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