CN210218443U - Sealing device of bearing - Google Patents
Sealing device of bearing Download PDFInfo
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- CN210218443U CN210218443U CN201920951667.8U CN201920951667U CN210218443U CN 210218443 U CN210218443 U CN 210218443U CN 201920951667 U CN201920951667 U CN 201920951667U CN 210218443 U CN210218443 U CN 210218443U
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Abstract
The utility model discloses a sealing device of bearing, including the flywheel, the center department of flywheel radially is equipped with and is used for supporting the bearing of flywheel one, bearing one center department radially is equipped with the axle sleeve, the axle sleeve is established to the echelonment structure, the surface at the axle sleeve minor diameter section is established to the bearing one set, the both sides of flywheel are equipped with seal assembly one and seal assembly two respectively, the outside of seal assembly one is equipped with sealed lid one, the outside of seal assembly two is equipped with sealed lid two, be equipped with sealing washer one and sealing washer two between sealed lid one and the axle sleeve respectively, sealed lid two is equipped with sealing washer three and sealing washer four between seal assembly two and the axle sleeve respectively, the outside of sealed lid one is equipped with lock nut one, lock nut one and sealed lid are equipped with sealed pad one between one. Through the design that structures such as sealing rings are arranged between the first sealing cover and the second sealing cover and between the first sealing assembly and the second sealing assembly respectively, the sealing performance of the bearing is ensured.
Description
Technical Field
The utility model relates to a bearing seal technical field, concretely relates to sealing device of bearing.
Background
In bearing seals, one or more seals, such as grease, are typically used to maintain the seal and lubrication, and to limit the ingress of contaminating particles, such seals are typically secured within the bearing ring and bonded to other rings to form a dynamic seal. When the clutch transmission shaft bearing is in work, the transmission mechanism must have good lubrication to ensure the normal and good operation of the machine body, particularly, the bearing of the transmission shaft of the machine body has heavier load and needs good lubrication, so that the sealing requirement between the transmission shaft and the bearing is very high, the bearing for the clutch transmission shaft usually adopts a rolling bearing, and a flywheel and a bearing seat at the lower end of the bearing bear very large pressure, so the sealing design between the transmission shaft and the rolling bearing is very important, and once the sealing is reduced, the machine body cannot normally work.
In the prior art, a commonly used sealing device is easy to leak oil, short in service life and inconvenient to maintain, and the sealing performance of the sealing device cannot be reliably maintained, so that the sealing device with good sealing performance is provided.
Disclosure of Invention
To the above-mentioned shortcoming that prior art exists, the utility model provides a sealing device can guarantee the sealing performance of bearing department, and long service life.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides a sealing device of bearing, includes the flywheel, the center department of flywheel radially is equipped with and is used for supporting the bearing of flywheel is one, bearing center department radially is equipped with the axle sleeve, the axle sleeve is established to the echelonment structure, the bearing is established by one set the surface of axle sleeve minor diameter section, the both sides of flywheel are equipped with seal assembly one and seal assembly two respectively, the outside of seal assembly one is equipped with sealed lid one, the outside of seal assembly two is equipped with sealed lid two, sealed lid one with seal assembly one with be equipped with sealing washer one and sealing washer two between the axle sleeve respectively, sealed lid two with seal assembly two with be equipped with sealing washer three and sealing washer four between the axle sleeve respectively, the outside of sealed lid one is equipped with lock nut one, lock nut one with sealed fill up between the lid one.
Preferably, the number of the first seal ring, the second seal ring, the third seal ring and the fourth seal ring is at least one.
Preferably, the first sealing assembly comprises a first pressing cover, the first pressing cover and the first sealing cover are in sealing connection through a first sealing ring, a first rotary sealing ring is radially arranged at the center of the first pressing cover, a first spacer sleeve is radially arranged at the center of the first rotary sealing ring, a fifth sealing ring attached to the shaft sleeve is arranged on the inner surface of the center of the first spacer sleeve, the second sealing assembly comprises a second pressing cover, the second pressing cover and the second sealing cover are in sealing connection through a second sealing ring, a second rotary sealing ring is radially arranged at the center of the second pressing cover, and a sixth sealing ring is arranged between the first pressing cover and the second pressing cover and the flywheel.
Preferably, the number of the fifth sealing ring and the sixth sealing ring is at least one.
Preferably, the interior surface cover of axle sleeve is equipped with the axle, keep away from on the axle sleeve minor diameter end center department is equipped with the cavity of echelonment, the minimum diameter end of cavity with hub connection department is equipped with rotary seal circle three, the last laminating of rotary seal circle has rotary seal circle four, be equipped with bearing two in the cavity, bearing two's the outside is equipped with gland three, gland three with bearing two with be equipped with rotary seal circle five and sealing washer seven between the axle sleeve respectively, gland three's the outside is equipped with lock nut two, lock nut two with be equipped with sealed pad two between the gland three.
Preferably, the number of the seal rings is at least one.
Preferably, the first bearings are set as rolling bearings, the first bearings are set as three, an inner positioning sleeve and an outer positioning sleeve for axially positioning the first bearings are respectively arranged between the two adjacent first bearings, the inner positioning sleeve is arranged on the outer surface of the shaft sleeve, and the outer positioning sleeve is arranged outside the inner positioning sleeve.
The utility model has the advantages of that: through the utility model discloses a flywheel and axle sleeve respectively with seal assembly one and the seal assembly two between be equipped with the sealing washer, sealed lid one and axle sleeve all with the seal assembly between one all be equipped with the sealing washer, all be equipped with the design of sealing washer isotructure between sealed lid two and axle sleeve and the seal assembly two, can form a more inclosed cavity, fluid gets into this airtight cavity from the oil feed passageway that sets up on the axle sleeve, can prevent that fluid from leaking from the both ends department of axle sleeve, this device is simple structure convenient assembling not only, and the problem of bearing department oil leak has been solved moreover.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
fig. 1 is a schematic view of a sealing device of a bearing according to the present invention.
Fig. 2 is a partial enlarged view of the part a of the present invention.
In the figure: 1-flywheel, 2-bearing I, 3-shaft sleeve, 4-sealing assembly I, 5-sealing assembly II, 6-sealing cover I, 7-sealing cover II, 8-sealing ring I, 9-sealing ring II, 10-sealing ring III, 11-sealing ring IV, 12-locking nut I, 13-sealing gasket I, 14-gland I, 15-rotary sealing ring I, 16-spacer sleeve I, 17-sealing ring V, 18-gland II, 19-rotary sealing ring II, 20-shaft, 21-rotary sealing ring III, 22-rotary sealing ring IV, 23-bearing II, 24-gland III, 25-rotary sealing ring V, 26-sealing ring VI, 27-sealing ring VII, 28-locking nut II, 29-sealing gasket II, 29-sealing ring II, 30-inner positioning sleeve and 31-outer positioning sleeve.
Detailed Description
In order to make the technical solution better understood by those skilled in the art, the technical solution in the embodiment of the present application will be clearly and completely described below with reference to fig. 1.
A sealing device of a bearing comprises a flywheel 1, a first bearing 2 used for supporting the flywheel 1 is radially arranged at the center of the flywheel 1, a shaft sleeve 3 is radially arranged at the center of the first bearing 2, the shaft sleeve 3 is of a step-shaped structure, the first bearing 2 is sleeved on the outer surface of a small diameter section of the shaft sleeve 3, a first sealing assembly 4 and a second sealing assembly 5 are respectively arranged at two sides of the flywheel 1 to ensure the positioning and sealing of the flywheel 1, a first sealing cover 6 is arranged at the outer side of the first sealing assembly 4 to prevent oil from leaking out of a gap between the shaft sleeve 3 and the first sealing assembly 4 to ensure the positioning and sealing of the first sealing assembly 4, a second sealing cover 7 is arranged at the outer side of the second sealing assembly 5 to prevent the oil from leaking out of the gap between the shaft sleeve 3 and the second sealing assembly 5 to ensure the positioning and sealing of the second sealing assembly 5, a first sealing ring 8 and a second sealing ring 9 are respectively, the lubrication and the sealing of the bearing I2 are further ensured, a sealing ring III 10 and a sealing ring IV 11 are respectively arranged between the sealing cover II 7 and the sealing component II 5 as well as the shaft sleeve 3, the lubrication and the sealing of the bearing I2 are further ensured, a locking nut I12 is arranged on the outer side of the sealing cover I6, and a sealing gasket I13 is arranged between the locking nut I12 and the sealing cover I6, so that the axial positioning and the sealing of the bearing I2 are ensured.
The number of the first sealing ring 8, the second sealing ring 9, the third sealing ring 10 and the fourth sealing ring 11 is set to be at least one so as to ensure the sealing of the first bearing 2.
The first sealing assembly 4 comprises a first pressing cover 14 to ensure the positioning of the flywheel 1, the first pressing cover 14 is in sealing connection with a first sealing cover 6 through a first sealing ring 8, a first rotary sealing ring 15 is radially arranged at the center of the first pressing cover 14, a first spacer 16 is radially arranged at the center of the first rotary sealing ring 15, a fifth sealing ring 17 attached to the shaft sleeve 3 is arranged on the inner surface of the center of the first spacer 16 to ensure the sealing of the first bearing 2, the second sealing assembly 5 comprises a second pressing cover 18 to ensure the positioning of the flywheel 1, the second pressing cover 18 is in sealing connection with a second sealing cover 7 through a second sealing ring 9, a second rotary sealing ring 19 is radially arranged at the center of the second pressing cover 18 to ensure the sealing of the first bearing 2, and six sealing rings 26 are respectively arranged between the first pressing cover 14 and the.
The number of the seal rings five 17 and six 26 is set to be at least one so as to ensure the sealing of the bearing one 2.
The inner surface of the shaft sleeve 3 is sleeved with a shaft 20, a stepped cavity is arranged at the center of the small-diameter end of the shaft sleeve 3, which is far away from the shaft sleeve 3, a rotary sealing ring III 21 is arranged at the joint of the minimum-diameter end of the cavity and the shaft 20, a rotary sealing ring IV 22 is attached to the rotary sealing ring III 21 to ensure the sealing of the shaft sleeve 3 and the shaft 20, a bearing II 23 is arranged in the cavity, a gland III 24 is arranged on the outer side of the bearing II 23 to position the bearing II 23, a rotary sealing ring V25 and a sealing ring VII 27 are respectively arranged between the gland III 24 and the bearing II 23 as well as between the gland III 23 as well as the shaft sleeve 3 to ensure the sealing of the bearing II 23, a locking nut II 28 is arranged on the outer side of the gland III 24 to ensure the axial positioning of the bearing II 23, and a sealing gasket II.
The number of the seal ring seven 27 is set to at least one to ensure the sealing of the bearing two 23.
For ease of understanding, the mounting and sealing of the flywheel 1 and the hub 3 is described as follows: the shaft sleeve 3 is arranged on the machine body and sleeved on the outer surface of the shaft 20, the outer surface of the small-diameter section of the shaft sleeve 3 is sleeved with a bearing I2, the outer surface of the bearing I2 is sleeved with a flywheel 1, two sides of the flywheel 1 are provided with a sealing assembly I4 and a sealing assembly II 5, a sealing ring VI 26 is arranged between a cover plate I14 of the sealing assembly I4 and the flywheel 1, a sealing ring V17 is arranged between a spacer sleeve I16 of the sealing assembly I4 and the shaft sleeve 3, the outer side of the sealing assembly I4 is provided with a sealing cover I6 for compressing the sealing assembly I4, a sealing ring I8 and a sealing ring II 9 are respectively arranged between the sealing cover I6 and the sealing assembly I4 and the shaft sleeve 3 to ensure that oil cannot leak out, the outer side of the sealing cover I6 is also provided with a sealing gasket I13 and a locking nut I12 for locking the sealing cover I6, a sealing ring VI 26 is arranged between a cover plate II 18, and a third sealing ring 10 and a fourth sealing ring 11 are arranged between the second sealing cover 7 and the second sealing assembly 5 and the shaft sleeve 3 respectively, so that a closed cavity is formed by enclosing, oil cannot leak out, and more reliable lubrication and sealing are realized.
The center department of the large-diameter section of the shaft sleeve 3 is provided with a cavity, a third rotary sealing ring 21 is arranged at the joint of the cavity and the shaft 20, a fourth rotary sealing ring 22 is tightly attached to the outer side of the third rotary sealing ring 21, a second bearing 23 is arranged on the inner surface of the cavity, the second bearing 23 is sleeved on the outer surface of the shaft 20, a third gland 24 is arranged on the outer side of the bearing 23, a fifth rotary sealing ring 25 and a second sealing gasket 29 are respectively arranged on the two sides of the gland 3, and a second locking nut for pressing the third sealing gasket 24 is arranged on the outer side of the second sealing gasket 29, so that another sealed cavity is formed, oil cannot leak.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (7)
1. A sealing device of a bearing comprises a flywheel and is characterized in that a first bearing for supporting the flywheel is radially arranged at the center of the flywheel, a shaft sleeve is radially arranged at the center of the bearing, the shaft sleeve is of a step-shaped structure, the bearing is sleeved on the outer surface of the small-diameter section of the shaft sleeve, a first sealing component and a second sealing component are respectively arranged on two sides of the flywheel, a first sealing cover is arranged on the outer side of the first sealing component, a sealing cover II is arranged on the outer side of the sealing component II, a sealing ring I and a sealing ring II are respectively arranged between the sealing cover I and the sealing component I as well as between the sealing cover I and the shaft sleeve, a third sealing ring and a fourth sealing ring are respectively arranged between the second sealing cover and the second sealing assembly as well as between the second sealing cover and the shaft sleeve, the outer side of the first sealing cover is provided with a first locking nut, and a first sealing gasket is arranged between the first locking nut and the first sealing cover.
2. The sealing device for a bearing according to claim 1, wherein the number of the first seal ring, the second seal ring, the third seal ring and the fourth seal ring is at least one.
3. The bearing sealing device as claimed in claim 1, wherein the first sealing assembly comprises a first gland, the first gland and the first sealing cover are in sealing connection through the first sealing ring, a first rotary sealing ring is radially arranged at the center of the first gland, a first spacer sleeve is radially arranged at the center of the first rotary sealing ring, a fifth sealing ring fitted with the shaft sleeve is arranged on the inner surface of the center of the first spacer sleeve, the second sealing assembly comprises a second gland, the second gland and the second sealing cover are in sealing connection through the second sealing ring, a second rotary sealing ring is radially arranged at the center of the second gland, and a sixth sealing ring is arranged between the first gland and the flywheel as well as between the second gland and the flywheel.
4. A sealing device for a bearing according to claim 3, wherein the number of the seal ring five and the seal ring six is at least one.
5. The sealing device of the bearing according to claim 1, wherein a shaft is sleeved on the inner surface of the shaft sleeve, a stepped cavity is formed in the position, far away from the center of the small-diameter end of the shaft sleeve, a third rotary sealing ring is arranged at the position, connected with the shaft, of the minimum-diameter end of the cavity, a fourth rotary sealing ring is attached to the third rotary sealing ring, a second bearing is arranged in the cavity, a third gland is arranged on the outer side of the second bearing, a fifth rotary sealing ring and a seventh rotary sealing ring are respectively arranged between the third gland and the shaft sleeve, a second locking nut is arranged on the outer side of the third gland, and a second sealing gasket is arranged between the second locking nut and the third gland.
6. A sealing device for a bearing according to claim 5, wherein the number of the seal rings is at least one.
7. The sealing device for the bearing as claimed in claim 1, wherein the first bearings are rolling bearings, the number of the first bearings is three, an inner positioning sleeve and an outer positioning sleeve for axially positioning the first bearings are respectively disposed between two adjacent first bearings, the inner positioning sleeve is disposed on the outer surface of the shaft sleeve, and the outer positioning sleeve is disposed outside the inner positioning sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920951667.8U CN210218443U (en) | 2019-06-21 | 2019-06-21 | Sealing device of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920951667.8U CN210218443U (en) | 2019-06-21 | 2019-06-21 | Sealing device of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210218443U true CN210218443U (en) | 2020-03-31 |
Family
ID=69933662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920951667.8U Active CN210218443U (en) | 2019-06-21 | 2019-06-21 | Sealing device of bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210218443U (en) |
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2019
- 2019-06-21 CN CN201920951667.8U patent/CN210218443U/en active Active
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