CN214999382U - Bearing seal ring - Google Patents
Bearing seal ring Download PDFInfo
- Publication number
- CN214999382U CN214999382U CN202120682280.4U CN202120682280U CN214999382U CN 214999382 U CN214999382 U CN 214999382U CN 202120682280 U CN202120682280 U CN 202120682280U CN 214999382 U CN214999382 U CN 214999382U
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- China
- Prior art keywords
- seal ring
- bearing seal
- bearing
- annular
- metal framework
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Abstract
The utility model provides a bearing seal ring can improve the resistance to deformation performance of sealing washer. The bearing seal ring (1) comprises an annular sealing part (2) and an annular metal framework (3) which is embedded in the sealing part (2) and is exposed towards the axial inner side, wherein the metal framework (3) is provided with a 1 st part (4) extending along the radial direction and a 2 nd part (5) extending from the radial outer end of the 1 st part (4) in parallel with the axial direction, the 1 st part (4) and the 2 nd part (5) are connected through a bent angle, and a plurality of rib plates (6) connecting the 1 st part (4) and the 2 nd part (5) are uniformly arranged at the bent angle of the metal framework (3) along the circumferential direction.
Description
Technical Field
The utility model relates to a bearing seal circle.
Background
In a machine tool or the like, a bearing with a seal ring is generally used for a spindle. As shown in fig. 3, the bearing seal ring 10, which is a general prior art design, includes an annular seal portion 20 and an annular metal skeleton 30 embedded in the seal portion 20, the metal skeleton 30 has a 1 st portion 40 extending in a radial direction and a 2 nd portion 50 extending from a radially outer end of the 1 st portion 40 in parallel with an axial direction, and the 1 st portion 40 and the 2 nd portion 50 are connected by an angle. Thus, the metal skeleton 30 has a substantially L-shaped cross section when cut in the radial direction.
However, when the spindle is actually designed and used, a method of flowing compressed air into the spindle is generally used in order to improve sealing performance and prevent foreign matter such as external cutting fluid or chips from entering the inside of the bearing. At this time, the seal ring on the bearing side receives air pressure (see fig. 4), and when the pressure is high, the bearing seal ring 10 of the conventional design shown in fig. 3 is largely deformed, and the bearing seal ring 10 interferes with an adjacent rotating member or bearing, which causes problems such as wear of the bearing seal ring and increase of rotational torque.
In order to solve the problem that the deformation is big when above-mentioned, bearing seal ring uses under the operating mode that has great compressed air pressure and leads to it to produce the interference with adjacent rotary part or bearing, the utility model provides a improve the bearing seal ring of resistance to deformation performance under the condition of the size and the sealing performance that do not change current design.
SUMMERY OF THE UTILITY MODEL
In one aspect of the present invention, there is provided a bearing seal ring including an annular seal portion and an annular metal skeleton which is embedded in the seal portion and exposed to an axial inner side, wherein the metal skeleton includes a 1 st portion extending in a radial direction and a 2 nd portion extending in parallel with an axial direction from a radially outer end of the 1 st portion, and the 1 st portion and the 2 nd portion are connected by a bent angle, wherein a plurality of rib plates connecting the 1 st portion and the 2 nd portion are uniformly provided in a circumferential direction at the bent angle of the metal skeleton.
In the above aspect, it is preferable that the rib plate and the 1 st portion of the metal skeleton are joined to each other over the entire length of the 1 st portion.
Effect of the utility model
According to the utility model discloses a bearing seal circle sets up the gusset through the bent angle department at bearing seal circle's metal framework, can improve resistance to deformation performance under the condition that does not change the size and the sealing performance of current design.
Drawings
Fig. 1 is a front view showing a bearing seal ring according to the present invention.
Fig. 2 is an enlarged partial sectional view showing the bearing seal ring according to the present invention when cut in the radial direction.
Fig. 3 is an enlarged partial sectional view showing a bearing seal ring of a conventional design when cut in a radial direction.
Fig. 4 is a schematic view showing a state of force applied to a bearing seal ring of a conventional design when compressed air is caused to flow through the inside of a main shaft.
Description of the reference numerals
1. 10: bearing seal ring, 2, 20: seal portion, 3, 30: metal skeleton, 4, 40: part 1, 5, 50: part 2, 6: a rib plate.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For convenience of explanation, the proportions of the components may be different, and some components may be omitted. In the bearing seal ring, the term "outward" in the axial direction means outward in the width direction when the bearing seal ring (hereinafter, may be simply referred to as a seal ring) is assembled to the bearing, and is shown on the left side in fig. 2, 3, and 4. Conversely, "inner" means the inner side in the width direction when the seal ring is assembled to the bearing, and is the right side in fig. 2, 3, and 4. With respect to the radial direction, "outer" means a side away from the center axis of the seal ring, and "inner" means a side close to the center axis of the seal ring.
In the following description, the bearing seal according to the present invention is applied to a spindle bearing of a machine tool or the like. The bearing seal ring according to the present embodiment will be described below with reference to fig. 1 and 2.
Fig. 1 is a front view showing a bearing seal ring according to the present invention, and fig. 2 is an enlarged view showing a partial cross-sectional view of the bearing seal ring according to the present invention when it is cut in a radial direction. Since the bearing seal ring surrounds the center axis, it is known to those skilled in the art that the overall shape of the seal ring can be obtained by showing the sectional shape as shown in fig. 2 on the basis of the overall front view of fig. 1.
As shown in fig. 1, the bearing seal ring 1 is annular around a central axis, is used by being assembled to a bearing, not shown, and includes an annular seal portion 2 and an annular metal skeleton 3 embedded in the seal portion 2 and exposed to the inside in the axial direction, as shown in fig. 2. The seal portion 2 is made of rubber, as in the conventional design. The metal skeleton 3 has a 1 st portion 4 extending in the radial direction and a 2 nd portion 5 extending from a radially outer end of the 1 st portion 4 in parallel with the axial direction, and the 1 st portion 4 and the 2 nd portion 5 are connected by an angle. Furthermore, a plurality of rib plates 6 connecting the 1 st part 4 and the 2 nd part 5 are uniformly provided in the circumferential direction at the bent angle of the metal skeleton 3. In fig. 1, eight webs 6 are shown, but the number of webs may be any integer number.
Here, the 2 nd portion 5 of the metal skeleton 3 is shown to extend parallel to the axial direction, but may be inclined in the radial direction.
Here, each rib 6 is joined to at least a part of the 1 st part 4 and the 2 nd part 5 of the metal skeleton 3. Preferably, as shown in fig. 2, each rib 6 is joined to the 1 st section 4 of the metal skeleton 3 over the entire length of the 1 st section 4.
Each rib plate 6 may be formed integrally with the metal framework 3, or may be formed separately from the metal framework 3 and joined by welding, bonding, or the like.
Next, the effects obtained by the bearing seal ring of the present embodiment will be described.
In the bearing seal ring of the conventional design, when a method of flowing compressed air through the inside of the main shaft is used in order to improve sealing performance and prevent foreign matter such as cutting fluid or chips from entering the inside of the bearing as described above, the seal ring on the bearing side receives air pressure as shown in fig. 4. When pressure is great, the sealing washer of current design can produce great deformation, and this sealing washer can produce the interference with adjacent rotating part or bearing, leads to the sealing washer wearing and tearing and rotation moment to increase scheduling problem.
In contrast, in the bearing seal ring of the present embodiment, the rib plate is provided at the corner of the metal skeleton of the bearing seal ring, so that the deformation resistance can be improved without changing the dimensions and sealing performance of the conventional design.
As shown in fig. 4, air pressure generated by the compressed air acts on the inner annular surface of the metal shell 40 in the axial direction. Therefore, in the bearing seal ring of the present embodiment, the rib plate 6 is provided so as to be coupled to the 1 st segment 4 of the metal skeleton 3 over the entire length of the 1 st segment 4, whereby axial deformation can be more effectively suppressed.
As described above, according to the present embodiment, it is possible to provide a bearing seal ring with improved deformation resistance without changing the dimensions and sealing performance of the conventional design.
The above description has been given only for the details of the preferred embodiments of the present invention. Various modifications and additions may be made to the described embodiments or may be substituted in a similar manner by those skilled in the art, and the technical scope of the present invention is to be determined by the claims, and the meaning equivalent to the description of the claims and all modifications within the scope thereof are intended to be included.
Claims (2)
1. A bearing seal ring comprising an annular seal portion (2) and an annular metal skeleton (3) embedded in the seal portion (2) and exposed to an axially inner side, the metal skeleton (3) having a 1 st portion (4) extending in a radial direction and a 2 nd portion (5) extending from a radially outer end of the 1 st portion (4) in parallel with an axial direction, and the 1 st portion (4) and the 2 nd portion (5) being connected by an angled corner, characterized in that,
and a plurality of rib plates (6) for connecting the 1 st part (4) and the 2 nd part (5) are uniformly arranged at the bent angle of the metal framework (3) along the circumferential direction.
2. The bearing seal ring of claim 1,
the rib plate (6) is combined with the 1 st part (4) of the metal framework (3) within the whole length range of the 1 st part (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120682280.4U CN214999382U (en) | 2021-04-02 | 2021-04-02 | Bearing seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120682280.4U CN214999382U (en) | 2021-04-02 | 2021-04-02 | Bearing seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214999382U true CN214999382U (en) | 2021-12-03 |
Family
ID=79095241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120682280.4U Active CN214999382U (en) | 2021-04-02 | 2021-04-02 | Bearing seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214999382U (en) |
-
2021
- 2021-04-02 CN CN202120682280.4U patent/CN214999382U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |