CN204387328U - A kind of air curtain sealing configuration of inverted installation main shaft - Google Patents
A kind of air curtain sealing configuration of inverted installation main shaft Download PDFInfo
- Publication number
- CN204387328U CN204387328U CN201420779548.6U CN201420779548U CN204387328U CN 204387328 U CN204387328 U CN 204387328U CN 201420779548 U CN201420779548 U CN 201420779548U CN 204387328 U CN204387328 U CN 204387328U
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Abstract
The utility model discloses a kind of air curtain sealing configuration of inverted installation main shaft, comprise body and rotating shaft, and the outer race gland be fixed on body end face and the bearing inner ring locking nut be positioned at outside outer race gland, described outer race gland is provided with the bulge loop being resisted against outer race; Described bearing inner ring locking nut is connected with shaft thread, which is provided with the flange being resisted against bearing inner ring; Formed between described outer race gland and bearing inner ring locking nut and be communicated with extraneous air gap, the sealing gland hole be interconnected is provided with in described body and outer race gland, in described air gap, interference is equiped with drifting dust cushion block, and this drifting dust cushion block is provided with several through holes being communicated with sealing gland hole and air gap.The utility model adopts the structure of hat type sealing and air curtain sealing, makes main shaft in inverted installation course of working, prevents the pollutant such as cutting fluid, dust from entering main shaft inside, reach splendid sealing effect, and this structure is simple, is easy to manufacture, highly versatile.
Description
Technical field
The utility model relates to the sealing configuration of electro spindle, particularly relates to a kind of air curtain sealing configuration of inverted installation main shaft.
Background technique
Electro spindle is new technology machine tool chief axis and spindle motor combined together occurred in numerical control machine tool field, and it pushes a New Times to High-speed machining together with techniques of linear motor, high-speed cutter technology.
Owing to producing actual needs, there is the multiple mounting modes such as horizontal, vertical, inverted in electro spindle in practice.Main shaft is in the market in inverted installment work process, and dust and water protection poor effect, and seal structure complex, be not easy to manufacture.
Model utility content
For the deficiencies in the prior art, the purpose of this utility model is to provide that a kind of structure is simple, highly versatile and the air curtain sealing configuration of the inverted installation main shaft of good sealing effect.
For achieving the above object, the utility model adopts following technological scheme:
An air curtain sealing configuration for inverted installation main shaft, comprises body and rotating shaft, and rotating shaft is installed on body center's line by bearing; Also comprise the outer race gland be fixed on body end face and the bearing inner ring locking nut be positioned at outside outer race gland, described outer race gland is provided with the bulge loop being resisted against outer race; Described bearing inner ring locking nut is connected with shaft thread, which is provided with the flange being resisted against bearing inner ring; Formed between described outer race gland and bearing inner ring locking nut and be communicated with extraneous air gap, the sealing gland hole be interconnected is provided with in described body and outer race gland, in described air gap, interference is equiped with drifting dust cushion block, and this drifting dust cushion block is provided with several through holes being communicated with sealing gland hole and air gap.
Further, described air gap is along the radial cross section concave-convex surface of main shaft.
Further, described sealing gland hole comprises the axial sealing gland hole be arranged in body and the radial sealing gland hole be arranged in outer race gland.
Further, the through hole lower end of described drifting dust cushion block is connected with radial sealing gland hole, and the upper end of through hole is connected with air gap.
Further, described drifting dust cushion block is provided with the ring air drain be connected with through hole upper end.
As mentioned above, the utility model adopts the structure of hat type sealing and air curtain sealing, make main shaft in inverted installation course of working, the pollutants such as the cutting fluid above main shaft, dust cannot enter main shaft inside due to the obstruct of bearing inner ring locking nut, the pollutant of main shaft side cannot enter main shaft inside due to the obstruct of air curtain, thus reaches splendid sealing effect, and this structure is simple, be easy to manufacture, highly versatile.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the air curtain sealing configuration of a kind of inverted installation main shaft of the utility model.
Wherein: 1, body; 11, axial sealing gland hole; 2, rotating shaft; 3, bearing; 4, outer race gland; 41, bulge loop; 42, radial sealing gland hole; 5, bearing inner ring locking nut; 51, flange; 6, air gap; 7, drifting dust cushion block; 71, through hole; 72, ring air drain.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
Refer to Fig. 1, the utility model discloses a kind of air curtain sealing configuration of inverted installation main shaft, it comprises body 1 and rotating shaft 2, rotating shaft 2 is installed on body 1 center line by bearing 3, bearing 3 inner ring and rotating shaft 2 interfix, and bearing 3 outer shroud and body 1 interfix, when rotating shaft 2 is rotated, body 1 and bearing 3 outer shroud transfixion, rotating shaft 2 and bearing 3 inner ring are rotated about axis.
The air curtain sealing configuration of this inverted installation main shaft also comprises the outer race gland 4 be fixed on by screw (not indicating in figure) on body 1 end face, described outer race gland 4 is in circular, and annulus inner ring is provided with and axially extends along main shaft and to be resisted against the bulge loop 41 of bearing 3 outer shroud; Also comprise bearing inner ring locking nut 5, it is installed in outside outer race gland 4, in circular, this bearing inner ring locking nut 5 is connected with rotating shaft 2 outer wall thread, which is provided with and axially to extend along main shaft and to be resisted against the flange 51 of bearing 3 inner ring, described outer race gland 4 and bearing inner ring locking nut 5 are for guaranteeing bearing 3 the stablizing of position on main shaft; Formed between this outer race gland 4 and bearing inner ring locking nut 5 and be communicated with extraneous air gap 6, particularly, this air gap 6 is along the radial cross section concave-convex surface of main shaft; Be provided with the sealing gland hole be interconnected in described body 1 and outer race gland 4, be respectively the axial sealing gland hole 11 be arranged in body 1 and the radial sealing gland hole 42 be arranged in outer race gland 4; In described air gap 6, interference is equiped with drifting dust cushion block 7, and this drifting dust cushion block 7 is provided with several through holes 71 being communicated with sealing gland hole and air gap 6, and particularly, the lower end of through hole 71 is connected with radial sealing gland hole 42, and the upper end of through hole 71 is connected with air gap 6; As further improvement, described drifting dust cushion block 7 is provided with the ring air drain 72 be connected with through hole 71 upper end, and this ring air drain 72 is conducive to air-flow and blows out main shaft along air gap 6 more equably, forms stable air curtain, thus reaches better air curtain sealing effect.
In the process of standing upside down installation main shaft, the pollutants such as the cutting fluid above main shaft, dust cannot enter main shaft inside under the obstruct of bearing inner ring locking nut 5; Pressurized gas imports from the axial sealing gland hole 11 in body 1, behind the radial sealing gland hole 42 of outer race gland 4, ring air drain 72 and air gap 6 is entered again by some through holes 71 of drifting dust cushion block 7, after ring air drain 72 place mixes, air-flow blows out main shaft along air gap 6, form stability air curtain, reach the effect preventing the pollutant of main shaft side from entering main shaft.
With being worth mentioning, drifting dust cushion block 7 is that interference is installed in air gap 6, can prevent air-flow from leaking gas toward main shaft internal flow, thus guarantee the intensity of air curtain.
In sum, the utility model adopts the structure of hat type sealing and air curtain sealing, make main shaft in inverted installation course of working, the pollutants such as the cutting fluid above main shaft, dust cannot enter main shaft inside due to the obstruct of bearing inner ring locking nut 5, the pollutant of main shaft side cannot enter main shaft inside due to the obstruct of air curtain, thus reaches splendid sealing effect, and this structure is simple, be easy to manufacture, highly versatile.
To one skilled in the art, according to technological scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the utility model claim.
Claims (5)
1. an air curtain sealing configuration for inverted installation main shaft, is characterized in that: comprise body and rotating shaft, rotating shaft is installed on body center's line by bearing; Also comprise the outer race gland be fixed on body end face and the bearing inner ring locking nut be positioned at outside outer race gland, described outer race gland is provided with the bulge loop being resisted against outer race; Described bearing inner ring locking nut is connected with shaft thread, which is provided with the flange being resisted against bearing inner ring; Formed between described outer race gland and bearing inner ring locking nut and be communicated with extraneous air gap, the sealing gland hole be interconnected is provided with in described body and outer race gland, in described air gap, interference is equiped with drifting dust cushion block, and this drifting dust cushion block is provided with several through holes being communicated with sealing gland hole and air gap.
2. the air curtain sealing configuration of inverted installation main shaft as claimed in claim 1, is characterized in that: described air gap is along the radial cross section concave-convex surface of main shaft.
3. the air curtain sealing configuration of inverted installation main shaft as claimed in claim 1, is characterized in that: described sealing gland hole comprises the axial sealing gland hole be arranged in body and the radial sealing gland hole be arranged in outer race gland.
4. the air curtain sealing configuration of inverted installation main shaft as claimed in claim 3, is characterized in that: the through hole lower end of described drifting dust cushion block is connected with radial sealing gland hole, and the upper end of through hole is connected with air gap.
5. the air curtain sealing configuration of inverted installation main shaft as claimed in claim 4, is characterized in that: described drifting dust cushion block is provided with the ring air drain be connected with through hole upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420779548.6U CN204387328U (en) | 2014-12-10 | 2014-12-10 | A kind of air curtain sealing configuration of inverted installation main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420779548.6U CN204387328U (en) | 2014-12-10 | 2014-12-10 | A kind of air curtain sealing configuration of inverted installation main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387328U true CN204387328U (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420779548.6U Active CN204387328U (en) | 2014-12-10 | 2014-12-10 | A kind of air curtain sealing configuration of inverted installation main shaft |
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| CN (1) | CN204387328U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106826548A (en) * | 2017-02-13 | 2017-06-13 | 福建省正丰数控科技有限公司 | Grinding machine spindle high pressure air seal structure |
| CN107812963A (en) * | 2017-11-30 | 2018-03-20 | 常州机电职业技术学院 | Inverted turning electro spindle |
| CN109382526A (en) * | 2017-08-14 | 2019-02-26 | 东莞市仕蒂赋精密机械科技有限公司 | Machine tool chief axis with safeguard function |
| CN109707851A (en) * | 2019-01-31 | 2019-05-03 | 宇晶机器（长沙）有限公司 | A kind of contact type sealing device for multi-line cutting machine high-speed bearing case |
-
2014
- 2014-12-10 CN CN201420779548.6U patent/CN204387328U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106826548A (en) * | 2017-02-13 | 2017-06-13 | 福建省正丰数控科技有限公司 | Grinding machine spindle high pressure air seal structure |
| CN109382526A (en) * | 2017-08-14 | 2019-02-26 | 东莞市仕蒂赋精密机械科技有限公司 | Machine tool chief axis with safeguard function |
| CN107812963A (en) * | 2017-11-30 | 2018-03-20 | 常州机电职业技术学院 | Inverted turning electro spindle |
| CN109707851A (en) * | 2019-01-31 | 2019-05-03 | 宇晶机器（长沙）有限公司 | A kind of contact type sealing device for multi-line cutting machine high-speed bearing case |
| CN109707851B (en) * | 2019-01-31 | 2024-03-08 | 宇晶机器（长沙）有限公司 | Contact type sealing device for high-speed bearing box of multi-wire sawing machine |
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| C14 | Grant of patent or utility model | ||
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