CN102114613B - Efficient inner-cooling electric spindle - Google Patents
Efficient inner-cooling electric spindle Download PDFInfo
- Publication number
- CN102114613B CN102114613B CN2010105392557A CN201010539255A CN102114613B CN 102114613 B CN102114613 B CN 102114613B CN 2010105392557 A CN2010105392557 A CN 2010105392557A CN 201010539255 A CN201010539255 A CN 201010539255A CN 102114613 B CN102114613 B CN 102114613B
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- main shaft
- spindle
- abrasive disc
- end cap
- rotor
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Abstract
The invention relates to an efficient inner-cooling electric spindle. The electric spindle comprises a shell, a spindle (1), a rotor (4) which rotates around the spindle (1), a rotor sleeve (2) which is sleeved on the rotor (4), a stator (3) which is fixed on the shell, a rolling bearing (5) which is connected to the spindle (1) for fixing the spindle (1), a grinding wheel plate (6) which is arranged on the front end of the spindle (1), a grinding wheel (7) which is arranged on the grinding wheel plate (6), a screw nut (8) which is arranged on the spindle (1) and at the front end of the grinding wheel plate (6) and used for axially fixing the grinding wheel plate (6), a slant water spraying hole (9) which is arranged on the front end of the spindle (1) and located at the position on two ends of the screw nut (8) and grinding wheel plate (6), and an end cover (10) which is arranged on the back end of the spindle (1). The electric spindle has an excellent cooling effect.
Description
Technical field
The present invention relates to a kind ofly, belong to High-speed machining equipment field with the powerful novel high speed electric main shaft device that sprays cooling of cooling in efficient and workpiece self adaptation.
Background technology
Traditional electric main shaft generally installs cooling jacket additional at motor stator, is used to cool off electric main shaft, controls electric main shaft temperature rise, solves because of the electric machine built-in problem of bringing that the motor feels hot.But this structure brings a stubborn problem to be, though the motor stator temperature can reduce significantly, the temperature of rotor is higher, certainly leads to axial thermal deformation, has influenced the accuracy of manufacture of electric main shaft.
In addition, in machining, cutting fluid plays decisive role to the quality of product.Heat as workpiece produced in the grinding process must cool off immediately, prevents the too high and material phase transition because of further heating up and cause of local temperature.Adopt cooling fluid, the heat that machining surface is produced is reduced to minimum level, and the most of heat that is produced is taken away by cooling fluid, guarantees carrying out smoothly of machine-building process.
In internal grinding; Cooling means generally is that cooling fluid is perhaps sprayed in cast from the outside, and the centrifugal force during owing to the emery wheel rotation is big, gets into grinding area to cooling fluid and brings certain difficulty; Often do not reach desirable cooling effect; Especially in the aperture grinding because emery wheel has occupied the most of space in the aperture, adopts traditional type of cooling more difficulty reach desirable cooling effect.
Summary of the invention
Technical problem:For overcoming the deficiency of prior art, the invention provides a kind of with cooling off in efficient and the powerful electric main shaft that sprays the new and effective interior cooling of cooling of workpiece self adaptation.This installs the method that adopts cooling in rotor, and cooling fluid not only itself is cooled off electric main shaft, and emery wheel and workpiece are carried out the powerful injection cooling of self adaptation, obtains favorable cooling effect.
Technical scheme:For solving the problems of the technologies described above; Technical scheme provided by the invention is: a kind of electric main shaft of efficient interior cooling; It comprises shell, main shaft, around the rotor of main axis rotation, be placed in epitrochanterian rotor cover, be fixed in the stator on the shell, the rolling bearing that is used for fixing main shaft that is connected with main shaft, the abrasive disc that is installed on front-end of spindle, be installed on emery wheel on the abrasive disc, be installed on the main shaft and be positioned at the abrasive disc front end the nut that is used for the axial restraint abrasive disc, main shaft front end and be positioned at nut and the position at abrasive disc two ends on offer oblique hole for water spraying; Be installed on the end cap of rear-end of spindle; Have centre bore in the main shaft; Centre bore offers the compressed air air flue for axially running through the through hole of main shaft on end cap and coolant duct joint, end cap, coolant duct joint and sealing ring constitute the non-contacting gas sealing device; Wherein, the coolant duct joint is positioned at end cap inside and is connected through sealing ring with end cap.
Preferably, the shaft shoulder at abrasive disc two ends is provided with at least 6 oblique hole for water sprayings.
Beneficial effect:The present invention is because rear-end of spindle adopts the new non-contact gas-tight sealing, and noncontact can not bring the attenuating of contact friction loss, running accuracy and the difficult problems such as restriction of wear-out life.Simultaneously, cooling fluid has been cooled off main shaft through the main shaft endoporus, lowers the rotor temperature rise.The cooling fluid oblique nozzle of flowing through sprays to the wheel grinding zone; Can realize abundant cooling, be specially adapted to deep Hole, and when the rotating speed of main shaft high more; Cooling fluid will spray to grinding area with bigger speed under action of centrifugal force, we are referred to as powerful injection of self adaptation and cool off.
Description of drawings
Fig. 1 is the cutaway view of the electric main shaft of efficient interior cooling provided by the invention;
Flow through air flue 12, centre bore 13, coolant duct joint 14 of main shaft 1, rotor cover 2, stator 3, rotor 4, rolling bearing 5, abrasive disc 6, emery wheel 7, nut 8, hole for water spraying 9, end cap 10, sealing ring 11, compressed air wherein.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
As shown in Figure 1, the electric main shaft of efficient interior cooling provided by the invention comprises main shaft 1, rotor cover 2, stator 3, rotor 4, rolling bearing 5, abrasive disc 6, emery wheel 7, nut 8, end cap 10, sealing ring 11 etc.
Its annexation is: shell, main shaft 1, around main shaft 1 rotor rotated 4, be placed in rotor cover 2 on the rotor 4, be fixed in stator 3, the rolling bearing that is used for fixing main shaft 15 that is connected with main shaft 1 on the shell, be installed on main shaft 1 front end abrasive disc 6, be installed on emery wheel 7 on the abrasive disc 6, be installed on the main shaft 1 and be positioned at abrasive disc 6 front ends the nut that is used for axial restraint abrasive disc 68, main shaft 1 front end and be positioned at nut 8 and the position at abrasive disc 6 two ends on offer oblique hole for water spraying 9; Be installed on the end cap 10 of main shaft 1 rear end; Have centre bore 13 in the main shaft 1; Centre bore 13 is for vertically running through the through hole of main shaft 1; On end cap 10 and coolant duct joint 14, offer compressed air air flue 12, end cap 10, coolant duct joint 14 and sealing ring 11 constitute the non-contacting gas sealing devices.
Between end cap 10 and the coolant duct joint 14 sealing ring 11 is housed.The shaft shoulder at abrasive disc 6 two ends is provided with at least 6 oblique hole for water sprayings.
Particularly, main shaft 1 is installed on the grinding machine through rolling bearing 5, and main shaft has centre bore 13, and centre bore 13 is a through hole, from the rear end feeding cooling fluid of centre bore 13.End cap 10 is formed contactless axle end sealing device with coolant duct joint 14; Between end cap 10 and the joint 14 sealing ring 11 is housed; During work, feed compressed air, the compressed air air flue 12 of flowing through at the sealing air of end cap 10 inlet; Form pressure balance with cooling fluid at axle head, reach sealing function.
Front-end of spindle is equipped with abrasive disc 6, has 6 oblique hole for water sprayings 9 on the main shaft at abrasive disc two ends equably, and the front end of hole for water spraying 9 points to grinding area.The cooling fluid spindle hole of flowing through arrives the oblique hole for water spraying of front end, under inlet pressure and action of centrifugal force, sprays to the wheel grinding zone, thereby main shaft, emery wheel and workpiece are cooled off fully.
Claims (2)
- One kind efficient in the electric main shaft of cooling; It is characterized in that this electricity main shaft comprises shell; Main shaft (1); Around main shaft (1) rotor rotated (4); Be placed in the rotor cover (2) on the rotor (4); Be fixed in the stator (3) on the shell; The rolling bearing that is used for fixing main shaft (1) (5) that is connected with main shaft (1); Be installed on the abrasive disc (6) of main shaft (1) front end; Be installed on the emery wheel (7) on the abrasive disc (6); Be installed on main shaft (1) and go up and be positioned at the nut that is used for axial restraint abrasive disc (6) (8) of abrasive disc (6) front end; The front end of main shaft (1) and be positioned at nut (8) and the position at abrasive disc (6) two ends on offer oblique hole for water spraying (9); End cap (10) is installed on the rear end of main shaft (1); Have centre bore (13) in the main shaft (1); Centre bore (13) is for axially running through the through hole of main shaft (1); On end cap (10) and coolant duct joint (14), offer compressed air air flue (12)End cap (10), coolant duct joint (14) and sealing ring (11) constitute the non-contacting gas sealing device, and wherein, coolant duct joint (14) is positioned at end cap (10) inside and is connected through said sealing ring (11) with end cap (10).
- 2. the electric main shaft of efficient interior cooling according to claim 1, it is characterized in that: the shaft shoulder at abrasive disc (6) two ends is provided with at least 6 said oblique hole for water sprayings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105392557A CN102114613B (en) | 2010-11-11 | 2010-11-11 | Efficient inner-cooling electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105392557A CN102114613B (en) | 2010-11-11 | 2010-11-11 | Efficient inner-cooling electric spindle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102114613A CN102114613A (en) | 2011-07-06 |
| CN102114613B true CN102114613B (en) | 2012-08-22 |
Family
ID=44213594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105392557A Expired - Fee Related CN102114613B (en) | 2010-11-11 | 2010-11-11 | Efficient inner-cooling electric spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102114613B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158070B (en) * | 2011-12-12 | 2015-07-01 | 北京中电科电子装备有限公司 | Grinding coolant input mechanism of motorized main shaft and thinner |
| CN102554281A (en) * | 2012-01-20 | 2012-07-11 | 太仓富田瑞兰得电机有限公司 | Electric spindle with cooling device |
| CN102636348B (en) * | 2012-04-10 | 2015-07-15 | 洛阳轴研科技股份有限公司 | High speed bearing tester |
| CN102749195B (en) * | 2012-07-06 | 2015-02-18 | 东南大学 | High-speed water bearing performance test device with air seal |
| CN103286679B (en) * | 2013-06-17 | 2015-12-02 | 东南大学 | A kind of ultrahigh speed air bearing electric main-shaft |
| CN103639901A (en) * | 2013-11-25 | 2014-03-19 | 李东炬 | Cutting fluid circulation system of universal grinder special for machining nuclear power bearing rings |
| CN103887918B (en) * | 2014-01-15 | 2016-08-17 | 洛阳轴研科技股份有限公司 | A kind of logical watertight construction of electro spindle hollow rotating shaft |
| CN104772474A (en) * | 2015-04-15 | 2015-07-15 | 吴江市宏宇机械有限公司 | Main shaft assembly of multi-edge angle milling machine |
| CN104772696A (en) * | 2015-04-15 | 2015-07-15 | 吴江市宏宇机械有限公司 | Power main shaft assembly of round grinding machine |
| CN107336131A (en) * | 2017-08-31 | 2017-11-10 | 无锡七机机床有限公司 | Grinder structure |
| CN109015360B (en) * | 2018-09-05 | 2019-09-10 | 东南大学 | A kind of high speed direct connection accurate grinding grinding wheel spindle system of electric machine built-in |
| CN111804936A (en) * | 2019-04-10 | 2020-10-23 | 宁波天控五轴数控技术有限公司 | Dual-cooling electric spindle |
| CN110170910A (en) * | 2019-06-25 | 2019-08-27 | 张劲松 | A kind of scribing machine air-floating main shaft structure of the double positioning of cutterhead |
| CN110216579B (en) * | 2019-06-25 | 2024-05-17 | 张劲松 | Air-float main shaft structure of scribing machine for cooling and cleaning water in shaft |
| CN111230619B (en) * | 2020-03-09 | 2021-10-01 | 扬州大学 | Non-ferrous metal inner hole grinding device and manufacturing method of device assembly |
| CN112846253A (en) * | 2021-01-06 | 2021-05-28 | 德庆通达电机有限公司 | Cooling electric main shaft in multipurpose combined hollow shaft |
| CN114433923B (en) * | 2022-03-10 | 2023-05-12 | 纽威数控装备(苏州)股份有限公司 | Full-automatic right angle cutter head of disconnect-type rotary joint's center play water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1088618A2 (en) * | 1999-09-30 | 2001-04-04 | SCM GROUP S.p.A. | High speed electrical spindle with hybrid rotor support in wood-working machines. |
| DE102004022301A1 (en) * | 2004-05-04 | 2005-12-01 | E + B Elektromaschinen + Beratung R. Meyer | Machine Tool electrospindle |
| CN201500930U (en) * | 2009-09-30 | 2010-06-09 | 朱楚中 | Internal cooling end face grinding head |
| CN201863125U (en) * | 2010-11-11 | 2011-06-15 | 东南大学 | High-efficiency internal cooled electric spindle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003145393A (en) * | 2001-11-16 | 2003-05-20 | Mitsubishi Heavy Ind Ltd | Spindle device |
-
2010
- 2010-11-11 CN CN2010105392557A patent/CN102114613B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1088618A2 (en) * | 1999-09-30 | 2001-04-04 | SCM GROUP S.p.A. | High speed electrical spindle with hybrid rotor support in wood-working machines. |
| DE102004022301A1 (en) * | 2004-05-04 | 2005-12-01 | E + B Elektromaschinen + Beratung R. Meyer | Machine Tool electrospindle |
| CN201500930U (en) * | 2009-09-30 | 2010-06-09 | 朱楚中 | Internal cooling end face grinding head |
| CN201863125U (en) * | 2010-11-11 | 2011-06-15 | 东南大学 | High-efficiency internal cooled electric spindle |
Non-Patent Citations (1)
| Title |
|---|
| 张伯霖，等.高速电主轴设计制造中若干问题的探讨.《制造技术与机床》.2001,(第7期),第12-14页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102114613A (en) | 2011-07-06 |
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