CN203599971U - Protective cover of high-speed electric ball spindle - Google Patents
Protective cover of high-speed electric ball spindle Download PDFInfo
- Publication number
- CN203599971U CN203599971U CN201320743961.2U CN201320743961U CN203599971U CN 203599971 U CN203599971 U CN 203599971U CN 201320743961 U CN201320743961 U CN 201320743961U CN 203599971 U CN203599971 U CN 203599971U
- Authority
- CN
- China
- Prior art keywords
- protective cover
- inner sleeve
- cover inner
- communicated
- sleeve
- 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.)
- Expired - Lifetime
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 71
- 239000000428 dust Substances 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
Images
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
A protective cover of a high-speed electric ball spindle comprises a protective cover inner sleeve and a protective cover outer sleeve fixedly connected to the outer portion of the protective cover inner sleeve in a sleeved mode. A shaft hole allowing a shaft core to penetrate through is formed in the protective cover inner sleeve, an air inlet hole which extends from the end face of the protective cover outer sleeve to the inner side face of the protective cover outer sleeve is formed inside the protective cover outer sleeve, an annular convergence groove which is communicated with the air inlet hole is formed in the outer side face of the protective cover inner sleeve, a plurality of diversion holes which extend in the radial direction of the protective cover inner sleeve and are circumferentially distributed around a center shaft of the protective cover inner sleeve are formed in the protective cover inner sleeve, the ends of the outer sides of the diversion holes are communicated with the convergence groove, and the ends of the inner sides of the diversion holes extend to the inner side face of the protective cover inner sleeve. Compared with the prior art, high-pressure air is used for realizing air seal of a fit clearance of the protective cover and the shaft core, therefore, dust is effectively prevented from entering the electric spindle, normal work of the electric spindle is guaranteed, air flows are evenly distributed on the periphery of the shaft core, air pressure is evenly distributed and influences on the shaft core are avoided.
Description
Technical field
The utility model relates to a kind of protective cover of speed electric rolling-ball main shaft.
Background technology
In order to protect electric main shaft internal structure not to be subject to the pollution of external environment, protective cover is installed on existing speed electric rolling-ball main shaft conventionally, it is mainly the effect of playing the electric main shaft internal structure of protection, meanwhile, also has concurrently and prevents that dust from entering the effect of electric main shaft inside.But, the protective cover of installing on existing speed electric rolling-ball main shaft, it normally utilizes mechanical seal to play dustproof effect, and dust-proof effect is not ideal enough.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of protective cover of speed electric rolling-ball main shaft, it can be by external high pressure feeder, realizes the air seal of protective cover and axle core gap location, effectively prevents that dust from entering electric main shaft inside.
For achieving the above object, the utility model adopts following technical scheme:
A kind of protective cover of speed electric rolling-ball main shaft, comprise protective cover inner sleeve and the fixedly sleeved protective cover overcoat at protective cover outside of inner cover, in protective cover, put and be provided with the axis hole passing for axle core, protective cover overcoat inside is provided with one and extends to the air admission hole of its medial surface by its end face, on the lateral surface of protective cover inner sleeve, offer a ring-type collecting tray being communicated with air admission hole, in protective cover, put to offer and multiplely radially extend and around the tap hole of the central shaft circumference array of protective cover inner sleeve along it, the outboard end of tap hole is communicated with collecting tray, medial extremity extends to the medial surface of protective cover inner sleeve.
On the medial surface of protective cover inner sleeve, offer the ring-type afflux groove being communicated with multiple tap holes.
Air admission hole comprise with protective cover overcoat axially consistent vertical section and with the radially consistent horizontal segment of protective cover overcoat.
The beneficial effects of the utility model are:
Than prior art, the utility model adopts gases at high pressure to realize the air seal of protective cover and axle core fit clearance, thereby effectively prevent that dust from entering into electric main shaft inside, guarantee that electric main shaft normally works, and air-flow is evenly distributed in axle core periphery, gas pressure is uniformly distributed, and can not impact axle core.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Wherein: 10, protective cover inner sleeve; 11, axis hole; 12, collecting tray; 13, tap hole; 14, afflux groove; 20, protective cover overcoat; 21, vertical section; 22, horizontal segment.
The specific embodiment
Below, by reference to the accompanying drawings and the specific embodiment, the utility model is described further:
As Fig. 1, shown in 2, for the protective cover of a kind of speed electric rolling-ball main shaft of the present utility model, it comprises protective cover inner sleeve 10 and protective cover overcoat 20, the outside that is socketed in protective cover inner sleeve 10 that protective cover overcoat 20 is fixing, in protective cover inner sleeve 10, offer an axis hole 11 passing for axle core, on protective cover overcoat 20, be provided with an air admission hole, this air admission hole comprises and axially consistent vertical section 21, protective cover overcoat 20, and the horizontal segment 22 radially consistent with protective cover overcoat 20, wherein, vertically section 21 upper ends extend to the upper surface of protective cover overcoat 20, form an air inlet being communicated with external air source, the outboard end of horizontal segment 22 is communicated with the bottom of vertical section 21, the medial end of horizontal segment 22 extends to the medial surface of protective cover overcoat 20.On the lateral surface of protective cover inner sleeve 10, offer the collecting tray 12 of a collar shape, the medial end of horizontal segment 22 is communicated with collecting tray 12.In protective cover inner sleeve 10, offer multiple tap holes that radially extend along it 13, the plurality of tap hole 13 is around the distribution of the central shaft circumference array of protective cover inner sleeve 10, the medial surface that the outboard end of tap hole 13 is communicated with collecting tray 12, medial end extends to protective cover inner sleeve 10.
On the basis of such scheme, can also on the medial surface of protective cover inner sleeve 10, offer the afflux groove 14 of a ring-type, the medial end of tap hole 13 is communicated with afflux groove 14.
When use, the above-mentioned air admission hole vertically air inlet of the upper end of section 21 is communicated with extraneous source of the gas, gases at high pressure enter into collecting tray 12 from air admission hole, via collecting tray 12, gases at high pressure are being assigned to each tap hole 13 uniformly, by tap hole 13, gases at high pressure are transported to afflux groove 14 again, the gases at high pressure that enter into afflux groove 14 flow out from protective cover inner sleeve 10 and the gap of axle core, realize the air seal of protective cover inner sleeve 10 and axle core cooperation place.
Than existing mechanical seal mode, the utility model adopts gases at high pressure to realize the air seal of protective cover and axle core fit clearance, thereby effectively prevent that dust from entering into electric main shaft inside, guarantee that electric main shaft normally works, and air-flow is evenly distributed in axle core periphery, gas pressure is uniformly distributed, and can not impact axle core.
To one skilled in the art, can be according to technical scheme described above and design, make other various corresponding changes and deformation, and within these all changes and deformation all should belong to the protection domain of the utility model claim.
Claims (3)
1. the protective cover of a speed electric rolling-ball main shaft, it is characterized in that, comprise protective cover inner sleeve and the fixedly sleeved protective cover overcoat at protective cover outside of inner cover, in protective cover, put and be provided with the axis hole passing for axle core, protective cover overcoat inside is provided with one and extends to the air admission hole of its medial surface by its end face, on the lateral surface of protective cover inner sleeve, offer a ring-type collecting tray being communicated with air admission hole, in protective cover, put to offer and multiplely radially extend and around the tap hole of the central shaft circumference array of protective cover inner sleeve along it, the outboard end of tap hole is communicated with collecting tray, medial extremity extends to the medial surface of protective cover inner sleeve.
2. the protective cover of speed electric rolling-ball main shaft as claimed in claim 1, is characterized in that, offers the ring-type afflux groove being communicated with multiple tap holes on the medial surface of protective cover inner sleeve.
3. the protective cover of speed electric rolling-ball main shaft as claimed in claim 1, is characterized in that, air admission hole comprise with protective cover overcoat axially consistent vertical section and with the radially consistent horizontal segment of protective cover overcoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743961.2U CN203599971U (en) | 2013-11-20 | 2013-11-20 | Protective cover of high-speed electric ball spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743961.2U CN203599971U (en) | 2013-11-20 | 2013-11-20 | Protective cover of high-speed electric ball spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203599971U true CN203599971U (en) | 2014-05-21 |
Family
ID=50712670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320743961.2U Expired - Lifetime CN203599971U (en) | 2013-11-20 | 2013-11-20 | Protective cover of high-speed electric ball spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203599971U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984998A (en) * | 2017-05-31 | 2017-07-28 | 东莞市显隆电机有限公司 | A kind of dust guard of high-speed electric main shaft |
| CN110821875A (en) * | 2019-11-28 | 2020-02-21 | 周东良 | Centrifugal dust removal exhaust fan for industrial environmental protection |
-
2013
- 2013-11-20 CN CN201320743961.2U patent/CN203599971U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984998A (en) * | 2017-05-31 | 2017-07-28 | 东莞市显隆电机有限公司 | A kind of dust guard of high-speed electric main shaft |
| CN110821875A (en) * | 2019-11-28 | 2020-02-21 | 周东良 | Centrifugal dust removal exhaust fan for industrial environmental protection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103343779B (en) | Vertical shaft impact crusher Transmission bearing unit | |
| CN203599971U (en) | Protective cover of high-speed electric ball spindle | |
| CN202411443U (en) | High-speed running centre bearing structure | |
| CN205715272U (en) | A kind of full supporting air-bearing | |
| CN203599970U (en) | Dust cover assembly for rolling ball high-speed motorized spindle | |
| CN201815209U (en) | Novel air filter | |
| CN202732715U (en) | Sealing ring bearing | |
| CN201971411U (en) | Shock-absorbing bearing block for vertical spiral conveyer | |
| CN103462702A (en) | High-speed turbine handpiece movement for dental department | |
| CN104329379B (en) | A kind of dirt-proof bearing | |
| CN203506894U (en) | Movement of dental high-speed turbine handpiece | |
| CN202674045U (en) | Bearing cap for fuel injection pump | |
| CN203023111U (en) | Floating type oil seal | |
| CN202561035U (en) | Shaft end sealing structure for bearing box body | |
| CN205078626U (en) | Porous collar nested structure of bearing | |
| CN201553463U (en) | Scrapping plate guide wheel device for scrapping plate conveyor | |
| CN201998742U (en) | Wheel hub with sealing ring | |
| CN202447680U (en) | Shell of high-speed live center | |
| CN204258509U (en) | A kind of wide temperature low-noise structure for motor | |
| CN203176177U (en) | Dustproof bearing | |
| CN203967926U (en) | A kind of magnetic steel of magnetoelectric machine assembling device | |
| CN202985195U (en) | Machine tool for built-in fixed bearing inner ring | |
| CN205118021U (en) | Cooling collar cover of bearing | |
| CN205013505U (en) | Bearing | |
| CN201966719U (en) | Motor end cover with seal ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: GUANGZHOU HAOZHI INDUSTRIAL Co.,Ltd. Document name: Review of business letter |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |