CN211508773U - Main shaft waterproof construction - Google Patents
Main shaft waterproof construction Download PDFInfo
- Publication number
- CN211508773U CN211508773U CN201922415395.2U CN201922415395U CN211508773U CN 211508773 U CN211508773 U CN 211508773U CN 201922415395 U CN201922415395 U CN 201922415395U CN 211508773 U CN211508773 U CN 211508773U
- Authority
- CN
- China
- Prior art keywords
- bearing
- end cover
- waterproof
- main shaft
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010276 construction Methods 0.000 title description 5
- 238000004078 waterproofing Methods 0.000 claims 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 2
- 241001365789 Oenanthe crocata Species 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a main shaft waterproof structure, which belongs to the technical field of precision main shafts and comprises a main shaft, a first bearing, a second bearing, a front bearing end cover, a rear bearing end cover, a front waterproof end cover, a rear waterproof end cover and a bearing sleeve, the main shaft is provided with a first bearing and a second bearing, bearing sleeves are arranged outside the first bearing and the second bearing, the first bearing is connected with a front bearing end cover, a front waterproof cover is arranged on the front bearing end cover, a labyrinth air seal structure is arranged between the front bearing end cover and the front waterproof end cover, an air outlet is arranged on the labyrinth air seal structure, a rear waterproof end cover and a rear bearing end cover are arranged on the end surface of the second bearing, the inner ring of the second bearing is connected with the rear waterproof end cover, the outer ring of the second bearing is connected with a rear bearing end cover, and a labyrinth waterproof structure is arranged between the rear bearing end cover and the rear waterproof end cover.
Description
Technical Field
The utility model relates to a main shaft waterproof construction belongs to accurate main shaft technical field.
Background
With the development of the technology, the machining industry is changing day by day, and the precision and the speed of products processed by numerical control machines and machining centers are high, so that the products become the basis of the industrial development. However, spindle failure in machining centers has been a long standing problem. The cutting milling cutter is installed at the front end of the main shaft, and a large amount of cooling liquid is accompanied with the washing of the cutter head when metal milling is carried out on a workpiece.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned not enough, provide a waterproof construction's main shaft, make the life of axle can satisfy anticipated design requirement.
According to the technical scheme of the utility model, the main shaft waterproof structure comprises a main shaft, a first bearing, a second bearing, a front bearing end cover, a rear bearing end cover, a front waterproof end cover, a rear waterproof end cover and a bearing sleeve, and is characterized in that the main shaft is provided with the first bearing and the second bearing, the bearing sleeve is arranged outside the first bearing and the second bearing, the first bearing is connected with the front bearing end cover, the front bearing end cover is provided with the front waterproof cover, a labyrinth air seal structure is arranged between the front bearing end cover and the front waterproof end cover, the labyrinth air seal structure is provided with an air outlet, the rear waterproof end cover and the rear bearing end cover are arranged on the end surface of the second bearing, the inner ring of the second bearing is connected with the rear waterproof end cover, the outer ring of the second bearing is connected with the rear bearing end cover, and the labyrinth waterproof structure is arranged between the rear bearing end cover and the rear waterproof, the bearing comprises a rear bearing end cover and a front bearing end cover, and is characterized in that an air inlet is formed in the rear bearing end cover, a first air passage is formed in the bearing sleeve, a second air passage and a third air passage are formed in the front bearing end cover, and the air inlet, the first air passage, the second air passage, the third air passage, a labyrinth air seal structure and an air outlet are communicated in sequence.
As a further improvement of the utility model, be connected through fastening bolt between bearing housing and the front bearing end cover.
As a further improvement of the utility model, be provided with the atmoseal holding screw between front waterproof end cover and the main shaft.
As a further improvement of the utility model, a water throwing groove is arranged on the rear waterproof end cover.
As a further improvement, the front waterproof end cover is provided with two rows of waterproof grooves at the position close to the gas outlet.
As a further improvement, the side surface of the front waterproof end cover is provided with a plurality of air-pushing grooves.
The utility model has the advantages of, it is all fine to seal the effect around improving, effectively protects the motor not intake, and bearing life reaches the ideal state.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a top view of the front bearing end cap.
FIG. 3 is a cross-sectional view of the front bearing end cap.
Description of reference numerals: the bearing comprises a main shaft 1, a first bearing 2, a second bearing 3, a front bearing end cover 4, a front waterproof end cover 5, a rear bearing end cover 6, a rear waterproof end cover 7, a bearing sleeve 8, a nut 9, a labyrinth waterproof structure 10, a labyrinth air seal structure 11, an air seal set screw 12, an air inlet 13, a first air path 14, a second air path 15, a third air path 16, an air outlet 17, a waterproof groove 5.1, an air stripping groove 5.2 and a water throwing groove 7.1.
Detailed Description
The present invention will be further explained below with reference to the drawings.
As shown in fig. 1 to 3, a main shaft waterproof structure includes a main shaft 1, a first bearing 2, a second bearing 3, a front bearing end cover 4, a rear bearing end cover 6, a front waterproof end cover 5, a rear waterproof end cover 7 and a bearing sleeve 8, and is characterized in that the main shaft 1 is provided with the first bearing 2 and the second bearing 3, the first bearing 2 and the second bearing 3 are provided with the bearing sleeve 8 at the outer part, the first bearing 2 is connected with the front bearing end cover 4, the front bearing end cover 4 is provided with the front waterproof end cover 5, a labyrinth air seal structure 11 is provided between the front bearing end cover 4 and the front waterproof end cover 5, the labyrinth air seal structure 11 is provided with an air outlet 17, the rear end of the main shaft 1 is provided with the rear waterproof end cover 7 and the rear bearing end cover 6, a clamping nut 9 is provided on the main shaft 1 and on one side of the rear waterproof end cover 7, and a labyrinth waterproof structure 10 is provided between the rear bearing end cover 6 and the rear waterproof end cover, the bearing comprises a rear bearing end cover 6, a bearing sleeve 8, a front bearing end cover 4, a labyrinth air seal structure 11, a rear bearing end cover 6 and a front bearing end cover 17, wherein an air inlet 13 is arranged on the rear bearing end cover 6, a first air passage 14 is arranged on the bearing sleeve 8, a second air passage 15 and a third air passage 16 are arranged on the front bearing end cover 4, and the air inlet 13, the first air passage 14, the second air passage 15, the third air passage 16, the labyrinth air.
Furthermore, the bearing sleeve 8 is connected with the front bearing end cover 4 through a fastening bolt.
Furthermore, the bearing sleeve 8 is connected with the rear bearing end cover 6 through a fastening bolt.
Further, an air seal set screw is arranged between the front waterproof end cover 5 and the main shaft 1.
Furthermore, a water throwing groove 7.1 is arranged on the rear waterproof end cover 7.
Further, two rows of waterproof grooves 5.1 are arranged on the front waterproof end cover 5 at positions close to the air outlet 17.
Furthermore, a plurality of air scraping grooves 5.2 are designed on the side surface of the front waterproof end cover 5.
The working principle of the utility model is that, inferior waterproof construction mainly takes the atmoseal principle, and 17 departments of the rear end air inlet of living 1 axle insert a 0.2 MP's air supply, through first gas circuit 14, second gas circuit 15, third gas circuit 16, maze atmoseal structure 11 and gas outlet 17. The side face of the front waterproof end cover 5 is provided with a plurality of air scraping grooves 5.2, and the air scraping grooves have the function of sucking air to an air outlet when rotating at a high speed. Two waterproof grooves 5.1 are designed on the front waterproof end cover 5, when external water pressure rushes to the seam, the waterproof grooves 5.1 which rotate at high speed are blocked and drop water, the second waterproof groove 5.1 is protected by double pieces, and meanwhile, air pressure is arranged inside an air passage of the labyrinth air seal structure 11, so that a waterproof effect is achieved. The rear end of the main shaft 1 has a smaller chance of water inflow than the front end, but a labyrinth waterproof structure 12 is designed to ensure the waterproof effect of the rear end.
Claims (7)
1. A main shaft waterproof structure comprises a main shaft (1), a first bearing (2), a second bearing (3), a front bearing end cover (4), a rear bearing end cover (6), a front waterproof end cover (5), a rear waterproof end cover (7) and a bearing sleeve (8), and is characterized in that the main shaft (1) is provided with the first bearing (2) and the second bearing (3), the bearing sleeve (8) is arranged outside the first bearing (2) and the second bearing (3), the first bearing (2) is connected with the front bearing end cover (4), the front bearing end cover (4) is provided with the front waterproof end cover (5), a labyrinth air seal structure (11) is arranged between the front bearing end cover (4) and the front waterproof end cover (5), the labyrinth air seal structure (11) is provided with an air outlet (17), the rear end of the main shaft (1) is provided with the rear waterproof end cover (7) and the rear bearing end cover (6), one side that just is located back waterproof end cover (7) on main shaft (1) is provided with and lock nut (9), be provided with labyrinth waterproof structure (10) between back bearing end cover (6) and back waterproof end cover (7), be provided with air inlet (13) on back bearing end cover (6), be provided with first gas circuit (14) on bearing housing (8), be provided with second gas circuit (15) and third gas circuit (16) on front bearing end cover (4), air inlet (13), first gas circuit (14), second gas circuit (15), third gas circuit (16), labyrinth air seal structure (11) and gas outlet (17) communicate with each other in proper order.
2. A water-proof structure for a main shaft according to claim 1, wherein the bearing housing (8) is connected with the front bearing end cover (4) by a fastening bolt.
3. A waterproof structure of a main shaft according to claim 1, wherein the bearing housing (8) and the rear bearing end cover (6) are connected by fastening bolts.
4. A spindle waterproofing structure according to claim 1, wherein a gas seal set screw is provided between the front waterproofing end cover (5) and the spindle (1).
5. A spindle waterproofing structure according to claim 1, wherein a water-throwing groove (7.1) is provided on the rear waterproofing end cover (7).
6. A waterproof structure for a spindle according to claim 1, wherein two rows of waterproof grooves (5.1) are provided in the front waterproof end cover (5) at positions close to the air outlet (17).
7. A spindle waterproofing structure according to claim 1, wherein the side of the front waterproofing end cover (5) is designed with a plurality of air-removing grooves (5.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922415395.2U CN211508773U (en) | 2019-12-28 | 2019-12-28 | Main shaft waterproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922415395.2U CN211508773U (en) | 2019-12-28 | 2019-12-28 | Main shaft waterproof construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211508773U true CN211508773U (en) | 2020-09-15 |
Family
ID=72396018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922415395.2U Active CN211508773U (en) | 2019-12-28 | 2019-12-28 | Main shaft waterproof construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211508773U (en) |
-
2019
- 2019-12-28 CN CN201922415395.2U patent/CN211508773U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231129 Address after: Building E Workshop, No. 220 Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Yulu Precision Industry Co.,Ltd. Address before: No. 1 Lijiang Road, Wangzhuang Street, Xinwu District, Wuxi City, Jiangsu Province, 214028 Patentee before: Wuxi No.2 Bearing Co.,Ltd. |