CN217558769U - High gas tightness executor gear box bearing of shifting - Google Patents
High gas tightness executor gear box bearing of shifting Download PDFInfo
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- CN217558769U CN217558769U CN202122961280.0U CN202122961280U CN217558769U CN 217558769 U CN217558769 U CN 217558769U CN 202122961280 U CN202122961280 U CN 202122961280U CN 217558769 U CN217558769 U CN 217558769U
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- sealing
- gas tightness
- high gas
- ring
- outer lane
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Abstract
The utility model discloses a high gas tightness gear shifting actuator gear box bearing, including the outer lane, wear to locate the inner circle in the outer lane, be provided with the holder between outer lane and the inner circle, be provided with a plurality of rolling elements on the holder, the both ends of outer lane all are provided with the sealing member of nai 150 ℃ temperature, the outer fringe face of outer lane is seted up first seal groove, be provided with the sealing washer of nai 150 ℃ temperature in the first seal groove, fill the lubricating grease of nai 150 ℃ temperature between outer lane and the inner circle; the utility model discloses not only have good gas tightness, can also have ideal life under 150 ℃ of temperature.
Description
Technical Field
The utility model belongs to the technical field of the bearing, a high gas tightness executor gear box bearing of shifting is related to.
Background
The gear box has a wide application range, is a speed change device for realizing a speed change effect by meshing large and small gears, a bearing used in the gear box of the gear shifting actuator is used for connecting the gear of the gear shifting actuator gear box with a wheel shaft, and the gear shifting actuator gear box has high temperature of 150 ℃ when in operation, the existing bearing has poor sealing performance and poor service life at high temperature, and cannot meet the use requirement of the gear shifting actuator gear box.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a high gas tightness executor gear box bearing of shifting, fine solution among the prior art leakproofness poor and the poor problem of life under the high temperature.
In order to realize the purpose, the utility model discloses a technical scheme as follows: the utility model provides a high gas tightness executor gear box bearing of shifting, includes the outer lane, wears to locate inner circle in the outer lane, be provided with the holder between outer lane and the inner circle, be provided with a plurality of rolling elements on the holder, the both ends of outer lane all are provided with the sealing member of nai 150 ℃ of temperature, first seal groove has been seted up to the outer fringe face of outer lane, be provided with the sealing washer of nai 150 ℃ of temperature in the first seal groove, fill the lubricating grease that has nai 150 ℃ of temperature between outer lane and the inner circle.
Furthermore, second seal grooves are formed in two sides of the inner diameter surface of the outer ring, the sealing element is annular, the outer edge of the sealing element is in interference fit in the second seal grooves, and the inner edge of the sealing element is in sealing contact with the outer diameter surface of the inner ring.
Furthermore, the middle part cladding of sealing member has annular backing sheet, the outer fringe and the inner edge of sealing member are provided with first seal lip and second seal lip respectively, first seal lip interference fit is in the second seal groove, the second seal lip extrusion in on the outer diameter face of inner circle.
Further, the roughness of the outer diameter surface of the inner ring is Rz0.05-Rz0.2.
Further, the sealing element and the sealing ring are made of hydrogenated nitrile rubber, and the outer ring, the inner ring, the retainer and the rolling body are made of stainless steel.
Furthermore, the lubricating grease adopts perfluoropolyether lubricating grease.
Furthermore, two first seal grooves are formed in the outer edge surface of the outer ring.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses in, first sealing washer and sealing washer can be so that have better gas tightness between bearing inner race and the axle sleeve, and the high temperature of 150 ℃ of sealing member, sealing washer, grease homoenergetic tolerates moreover makes the utility model discloses not only have good gas tightness, can also have the life of ideal under 150 ℃ of temperature.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of the portion B in FIG. 1;
fig. 4 is an enlarged view of a portion C in fig. 1.
In the figure: 1-an outer ring; 2-inner ring; 3-a cage; 4-rolling elements; 5-a seal; 6-a first seal groove; 7-a sealing ring; 8-a second seal groove; 9-a support sheet; 10-a first sealing lip; 11-second sealing lip.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the gear box bearing of the high-airtightness shift actuator of the present invention comprises an outer ring 1 and an inner ring 2 penetrating into the outer ring 1, wherein a retainer 3 is arranged between the outer ring 1 and the inner ring 2, a plurality of rolling elements 4 are arranged on the retainer 3, the rolling elements 4 are uniformly distributed on the retainer 3 along the axis of the outer ring 1, and the outer ring 1, the inner ring 2, the rolling elements 4 and the retainer 3 are all made of stainless steel materials such as 304, 321 or 316L, which can endure a high temperature of 150 ℃, and have good corrosion resistance; the two ends of the outer ring 1 are respectively provided with a sealing element 5 resistant to the temperature of 150 ℃, the outer edge surface of the outer ring 1 is provided with a first sealing groove 6, a sealing ring 7 resistant to the temperature of 150 ℃, preferably a 0-type sealing ring, is arranged in the first sealing groove 6, and lubricating grease resistant to the temperature of 150 ℃ is filled between the outer ring 1 and the inner ring 2; specifically, the sealing element 5 and the sealing ring 7 are made of hydrogenated butadiene-acrylonitrile rubber, so that the sealing element has good heat resistance, and the lubricating grease is made of perfluoropolyether lubricating grease, preferably krueberg perfluoropolyether lubricating grease, and can resist the high temperature of 150-200 ℃; the utility model can endure the high temperature of 150 ℃ and has good air tightness.
In this embodiment, the two sides of the inner diameter surface of the outer ring 1 are provided with second seal grooves 8, the seal element 5 is annular, the outer edge of the seal element is in interference fit in the second seal grooves 8, and the inner edge of the seal element 5 is in sealing contact with the outer diameter surface of the inner ring 2; specifically, the middle part cladding of sealing member 5 has annular backing sheet 9, supports sealing member 5, strengthens its intensity, the outer fringe and the inner edge of sealing member 5 are provided with first seal lip 10 and second seal lip 11 respectively, first seal lip 10 interference fit strengthens its pull-out power in second seal groove 8, improves sealed effect, second seal lip 11 extrude in on the external diameter face of inner circle 2.
Preferably, the roughness of the outer diameter surface of the inner ring 2 is rz0.05-rz0.2; the outer diameter surface of the inner ring 2 meets the requirement of mirror surface roughness, the sealing effect of the second sealing lip 11 and the outer diameter surface of the inner ring 2 is guaranteed, and the air tightness of the bearing is guaranteed.
In this embodiment, two first seal grooves 6 are formed in the outer edge surface of the outer ring 1, and the two first seal grooves 6 are provided with the seal rings 7, so that the air tightness of the bearing is further improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a high gas tightness executor gear box bearing of shifting which characterized in that: including the outer lane, wear to locate inner circle in the outer lane, be provided with the holder between outer lane and the inner circle, be provided with a plurality of rolling elements on the holder, the both ends of outer lane all are provided with the sealing member of nai 150 ℃ of temperature, first seal groove has been seted up to the outer fringe face of outer lane, be provided with the sealing washer of nai 150 ℃ of temperature in the first seal groove, fill the lubricating grease of nai 150 ℃ of temperature between outer lane and the inner circle.
2. The high gas tightness shift actuator gearbox bearing of claim 1, characterized in that: the inner diameter surface of the outer ring is provided with a first sealing groove, the outer diameter surface of the inner ring is provided with a second sealing groove, the sealing element is annular, the outer edge of the sealing element is in interference fit in the first sealing groove, and the inner edge of the sealing element is in sealing contact with the outer diameter surface of the inner ring.
3. The high gas tightness shift actuator gearbox bearing of claim 2, characterized in that: the middle part cladding of sealing member has annular backing sheet, the outer fringe and the inner edge of sealing member are provided with first seal lip and second seal lip respectively, first seal lip interference fit is in the second seal groove, the second seal lip extrusion in on the outer diameter face of inner circle.
4. The high gas tightness shift actuator gearbox bearing of claim 2, characterized in that: the roughness of the outer diameter surface of the inner ring is Rz0.05-Rz0.2.
5. The high gas tightness shift actuator gearbox bearing of claim 1, characterized in that: the sealing element and the sealing ring are made of hydrogenated nitrile rubber, and the outer ring, the inner ring, the retainer and the rolling body are made of stainless steel.
6. The high gas tightness shift actuator gearbox bearing of claim 1, characterized in that: the lubricating grease adopts perfluoropolyether lubricating grease.
7. The high-airtightness shift actuator gearbox bearing according to claim 1, wherein: two first seal grooves are formed in the outer edge face of the outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122961280.0U CN217558769U (en) | 2021-11-29 | 2021-11-29 | High gas tightness executor gear box bearing of shifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122961280.0U CN217558769U (en) | 2021-11-29 | 2021-11-29 | High gas tightness executor gear box bearing of shifting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217558769U true CN217558769U (en) | 2022-10-11 |
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ID=83466003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122961280.0U Active CN217558769U (en) | 2021-11-29 | 2021-11-29 | High gas tightness executor gear box bearing of shifting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217558769U (en) |
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2021
- 2021-11-29 CN CN202122961280.0U patent/CN217558769U/en active Active
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