CN219082062U - High-sealing spindle assembly - Google Patents
High-sealing spindle assembly Download PDFInfo
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- CN219082062U CN219082062U CN202223560848.9U CN202223560848U CN219082062U CN 219082062 U CN219082062 U CN 219082062U CN 202223560848 U CN202223560848 U CN 202223560848U CN 219082062 U CN219082062 U CN 219082062U
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- sealing
- cylindrical roller
- main shaft
- spindle assembly
- roller bearing
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Abstract
The utility model discloses a high-sealing main shaft assembly, which comprises a transmission main shaft, wherein the transmission main shaft coaxially rotates and is provided with a pair of cylindrical roller bearings, a sealing sleeve of the pair of cylindrical roller bearings is provided with the same spacer, the transmission main shaft coaxially rotates and is provided with a sealing element, and the sealing element seals the outwards-facing side surface of the cylindrical roller bearings. Through adopting above-mentioned setting, can reduce outside dust impurity and get into in the cylindrical roller bearing to improve cylindrical roller bearing's life, and improve mechanical transmission work smoothness.
Description
Technical Field
The utility model relates to the technical field of spindle structures, belongs to a medium-high speed and medium-heavy load transmission structure and a occasion with high sealing requirements, and particularly relates to a high-sealing spindle assembly.
Background
The prior mechanical main shaft transmission generally adopts a pair of cylindrical roller bearings to be matched with the main shaft, and corresponding spacer sleeves or connecting seats are arranged on the surfaces of the pair of cylindrical roller bearings. The cylinder roller sleeve is directly exposed outside, so that dust and impurities outside the cylinder roller sleeve can enter the cylinder roller bearing or the connecting position of the cylinder roller bearing, and the service life of the cylinder roller bearing is reduced or the condition of clamping transmission work occurs.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide a high-sealing main shaft assembly which can reduce the entry of external dust impurities into a cylindrical roller bearing, so as to prolong the service life of the cylindrical roller bearing and improve the working smoothness of mechanical transmission.
The aim of the utility model is achieved by the following technical scheme:
the utility model provides a high seal main shaft assembly, includes the transmission main shaft, the coaxial rotation of transmission main shaft has a pair of cylindrical roller bearing, a pair of cylindrical roller bearing seal cover is equipped with same spacer, the coaxial rotation of transmission main shaft has the sealing member, the sealing member seals the side of cylindrical roller bearing towards the outside.
Further, a driving connection part is arranged at one end of the main shaft, the sealing element comprises a first sealing element and a second sealing element, the first sealing element and the second sealing element are respectively arranged on two sides of the pair of cylindrical roller bearings, and the first sealing element is positioned on one side close to the driving connection part.
Further, the first seal member includes a seal seat in interference fit with the drive spindle, the seal seat sealing the end opening of the spacer adjacent the drive connection.
Further, an annular groove is formed in the end face, close to the driving connecting portion, of the spacer bush, a limiting ring is arranged on the end face, far away from the driving connecting portion, of the sealing seat in a protruding mode, the limiting ring is in plug-in fit with the annular groove, and a gap is formed between the outer peripheral face of the limiting ring and the inner peripheral face of the annular groove.
Further, a storage ring groove is formed between the limiting ring and the transmission main shaft, oil seal rubber is arranged in the storage ring groove, and the oil seal rubber is opposite to the side face of the adjacent cylindrical roller bearing.
Further, a matching ring groove is formed in the inner peripheral surface of the sealing seat, and wool felt is arranged in the matching ring groove.
Further, the second sealing piece comprises a sealing nut in interference fit with the transmission main shaft, and the sealing nut is opposite to the side face of the adjacent cylindrical roller bearing.
Further, the inner peripheral surface of the spacer bush is provided with a cutter withdrawal protruding portion in a protruding mode, the cutter withdrawal protruding portion is in a ring-shaped column shape, the cutter withdrawal protruding portion is located between a pair of cylindrical roller bearings, and the two cylindrical roller bearings are respectively abutted to two ends of the cutter withdrawal protruding portion.
The utility model has the following beneficial effects:
a high-sealing main shaft assembly aims at reducing external dust and impurities from entering a cylindrical roller bearing, prolonging the service life of the cylindrical roller bearing and improving the working smoothness of mechanical transmission. Therefore, the sealing piece is arranged on the transmission main shaft, the sealing piece is used for sealing the outward side face of the cylindrical roller bearing, so that the external dust and impurities are reduced to enter the cylindrical roller bearing, the service life is prolonged, and the situation of blocking is reduced.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a cross-sectional view of the overall structure of the present utility model.
Fig. 3 is a partial enlarged view at a in fig. 2.
In the figure: 1. a transmission main shaft; 11. a drive connection; 12. cylindrical roller bearings; 2. a spacer bush; 21. an annular groove; 22. a retracting convex part; 3. a sealing seat; 31. a limiting ring; 32. a storage ring groove; 33. oil seal rubber; 34. matching with the ring groove; 35. wool felt; 4. and (5) sealing the nut.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and to specific examples. The terms such as "upper", "inner", "middle", "left", "right" and "a" and the like recited in the present specification are also for convenience of description only and are not intended to limit the scope of the present utility model, but rather to change or adjust the relative relationship thereof, without substantially changing the technical content, and are considered to be within the scope of the present utility model.
Referring to fig. 1 to 3, a high sealing spindle assembly comprises a transmission spindle 1, wherein the transmission spindle 1 coaxially rotates and is provided with a pair of cylindrical roller bearings 12, the pair of cylindrical roller bearings 12 are hermetically sleeved with the same spacer bush 2, the transmission spindle 1 coaxially rotates and is provided with a sealing element, and the sealing element seals the outward side face of the cylindrical roller bearings 12. The spacer bush 2 is used for connecting components which indirectly realize the transmission motion function, such as a chain wheel or a gear connected through a bearing.
In particular, the present utility model aims to reduce the entry of external dust and foreign matter into the cylindrical roller bearing 12, to improve the service life of the cylindrical roller bearing 12, and to improve the smoothness of mechanical transmission work. So through setting up the sealing member at transmission main shaft 1, utilize the sealing member to seal the side of cylinder roller bearing 12 outwards to realize reducing outside dust impurity and get into in the cylinder roller bearing 12, and then realize improving life, reduce the dead situation of card appearance.
Referring to fig. 1 to 3, in order to achieve simultaneous sealing of two cylindrical roller bearings 12 of the drive spindle 1. One end of the main shaft is provided with a drive connection portion 11, and the drive connection portion 11 is used for connecting drive components such as a motor. The seal members include a first seal member and a second seal member, which are disposed on both sides of the pair of cylindrical roller bearings 12, the first seal member being located on a side close to the drive connection portion 11.
In order to disclose the structure of the first sealing member, the first sealing member comprises a sealing seat 3 in interference fit with the transmission main shaft 1, and the sealing seat 3 seals an end opening of the spacer bush 2 close to the driving connection part 11, so that the sealing seat 3 is utilized to seal the end opening of the spacer bush 2 close to the driving connection part 11, and the function of sealing the adjacent cylindrical roller bearings 12 is realized.
In order to achieve a sealing of the opening of the spacer 2 close to the drive connection 11 by means of the sealing seat 3. An annular groove 21 is formed in the end face, close to the driving connecting portion 11, of the spacer bush 2, a limiting ring 31 is arranged on the end face, far away from the driving connecting portion 11, of the sealing seat 3 in a protruding mode, the limiting ring 31 is in plug-in fit with the annular groove 21, and a gap is formed between the outer peripheral face of the limiting ring 31 and the inner peripheral face of the annular groove 21. Therefore, the limit ring 31 and the annular groove 21 are used for plug-in adaptation, so that the end opening of the spacer bush 2, which is close to the driving connecting part 11, is sealed, and the function of relative movement between the sealing seat 3 and the spacer bush 2 is not affected.
As shown in fig. 1 to 3, in order to reduce the overflow of grease from the surface of the cylindrical roller bearing 12 from the clearance of the seal housing 3, waste is caused. A storage ring groove 32 is formed between the limiting ring 31 and the transmission main shaft 1, oil seal rubber 33 is arranged in the storage ring groove 32, and the oil seal rubber 33 is opposite to the side face of the adjacent cylindrical roller bearing 12. Therefore, oil is absorbed by the oil seal rubber 33, oil overflow is reduced, the surface of the cylindrical roller bearing 12 can be lubricated at any time, and the service life is prolonged.
In order to lubricate the connection position between the sealing seat 3 and the transmission main shaft 1, a function of local cooling is realized. The inner peripheral surface of the sealing seat 3 is provided with a matching ring groove 34, and a wool felt 35 is arranged in the matching ring groove 34. From this, utilize wool felt 35 to absorb grease to realize the hookup location lubrication, utilize the function of grease cooling simultaneously.
For the purpose of disclosure of the structure of the second seal. The second seal comprises a seal nut 4 in interference fit with the drive spindle 1, the seal nut 4 being directly opposite the side of an adjacent cylindrical roller bearing 12.
In order to achieve positioning of the mounting positions of the two cylindrical roller bearings 12, displacement offset of the two cylindrical roller bearings 12 is reduced. The inner peripheral surface of the spacer bush 2 is provided with a cutter withdrawal protruding part 22 in a protruding mode, the cutter withdrawal protruding part 22 is in a ring-shaped column shape, the cutter withdrawal protruding part 22 is positioned between the pair of cylindrical roller bearings 12, and the two cylindrical roller bearings 12 are respectively abutted against the two ends of the cutter withdrawal protruding part 22, so that the functions of installation positioning and installation limiting are achieved.
The embodiments of the present utility model are not limited thereto, and the present utility model may be modified, substituted or combined in various other forms without departing from the basic technical spirit of the present utility model, which falls within the scope of the claims, according to the above-described aspects of the present utility model, using the general knowledge and conventional means of the art.
Claims (8)
1. A high seal spindle assembly, characterized by: the novel transmission device comprises a transmission main shaft, wherein the transmission main shaft coaxially rotates and is provided with a pair of cylindrical roller bearings, a pair of cylindrical roller bearing sealing sleeves are provided with the same spacer, the transmission main shaft coaxially rotates and is provided with a sealing piece, and the sealing piece seals the outwards side face of the cylindrical roller bearing.
2. A high seal spindle assembly as defined in claim 1, wherein: the one end of main shaft is provided with the drive connecting portion, the sealing member includes first sealing member and second sealing member, first sealing member and second sealing member divide to list a pair of cylindrical roller bearing's both sides, first sealing member is located be close to one side of drive connecting portion.
3. A high seal spindle assembly as defined in claim 2, wherein: the first sealing member comprises a sealing seat in interference fit with the transmission main shaft, and the sealing seat seals an end opening of the spacer close to the driving connecting part.
4. A high seal spindle assembly as defined in claim 3, wherein: the spacer bush is close to the end face of the driving connecting portion, an annular groove is formed in the end face, away from the driving connecting portion, of the sealing seat, a limiting ring protrudes, the limiting ring is in plug-in fit with the annular groove, and a gap is formed between the outer circumferential face of the limiting ring and the inner circumferential face of the annular groove.
5. A high seal spindle assembly as defined in claim 4, wherein: and a storage ring groove is formed between the limiting ring and the transmission main shaft, oil seal rubber is arranged in the storage ring groove, and the oil seal rubber is opposite to the side face of the adjacent cylindrical roller bearing.
6. A high seal spindle assembly as defined in claim 4, wherein: the inner peripheral surface of the sealing seat is provided with a matching ring groove, and a wool felt is arranged in the matching ring groove.
7. A high seal spindle assembly as defined in claim 2, wherein: the second sealing piece comprises a sealing nut in interference fit with the transmission main shaft, and the sealing nut is opposite to the side face of the adjacent cylindrical roller bearing.
8. A high seal spindle assembly as defined in claim 1, wherein: the inner peripheral surface of the spacer bush is provided with a cutter withdrawal protruding portion in a protruding mode, the cutter withdrawal protruding portion is in a ring-shaped column shape, the cutter withdrawal protruding portion is located between a pair of cylindrical roller bearings, and the two cylindrical roller bearings are respectively abutted to two ends of the cutter withdrawal protruding portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223560848.9U CN219082062U (en) | 2022-12-30 | 2022-12-30 | High-sealing spindle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223560848.9U CN219082062U (en) | 2022-12-30 | 2022-12-30 | High-sealing spindle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219082062U true CN219082062U (en) | 2023-05-26 |
Family
ID=86403027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223560848.9U Active CN219082062U (en) | 2022-12-30 | 2022-12-30 | High-sealing spindle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219082062U (en) |
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2022
- 2022-12-30 CN CN202223560848.9U patent/CN219082062U/en active Active
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