CN106735335B - A kind of oil-air lubrication high-speed electric main shaft of accurate fuel feeding - Google Patents
A kind of oil-air lubrication high-speed electric main shaft of accurate fuel feeding Download PDFInfo
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- CN106735335B CN106735335B CN201710079281.8A CN201710079281A CN106735335B CN 106735335 B CN106735335 B CN 106735335B CN 201710079281 A CN201710079281 A CN 201710079281A CN 106735335 B CN106735335 B CN 106735335B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/121—Arrangements for cooling or lubricating parts of the machine with lubricating effect for reducing friction
- B23Q11/122—Lubricant supply devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/121—Arrangements for cooling or lubricating parts of the machine with lubricating effect for reducing friction
- B23Q11/123—Arrangements for cooling or lubricating parts of the machine with lubricating effect for reducing friction for lubricating spindle bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a kind of oil-air lubrication high-speed electric main shafts of accurate fuel feeding, belong to electro spindle technical field.Entire electro spindle in housing, housing including being fixed with stator；Housing both ends are connected with forward and backward bearing chamber, two bearings of connecting respectively in bearing chamber, are separated between two bearings by dottle pin in bearing with outer dottle pin；Front and back bearings support mandrel, are provided on mandrel and the matched rotor of stator.Each bearing sets an oil-air lubrication oil circuit respectively；Annular cooling bath is set respectively in fore bearing room and housing；Oil and gas import and oil gas vent are provided on bear box, oil-gas pipeline is provided with oil gas nozzle by housing, bearing chamber and the outer dottle pin of bearing in pipe end, and each bearing has individual pipeline road, nozzle and oil return line.The present invention realizes the accurate control of the oil-air lubrication parameter of bearing, improves the lubricant effect of bearing, enhance electro spindle performance by designing independent oil-air lubrication oil circuit, nozzle and oil return line.
Description
Technical field
The present invention relates to a kind of electro spindle, more particularly to a kind of high-speed electric main shaft using the accurate fuel feeding of oil-air lubrication.
Background technology
With the development of high speed machining, requirement of the manufacturing industry to lathe rotating speed is higher and higher.Core as lathe
Component, electro spindle also develop in the direction towards high speed.The rotary motion of electro spindle depends on the support shaft at mandrel both ends
It holds, the rotating speed and bearing capacity of bearing directly affect the performance of electro spindle.
Lubrication be influence bearing performance a key factor, traditional electric mainshaft bearing lubricating system be mostly grease lubrication,
Oil lubrication etc..These lubricating systems are mostly excessive lubrication, and not only waste of resource, can also generate additional frictional force in bearing
Square influences bearing performance, limits the limit speed of electro spindle.In order to improve bearing rotating speed, high-speed bearing uses oil gas more at present
Lubrication.Oil-air lubrication belongs to micro lubricating, its main feature is that quantitative lubricating oil is transported by compressed air to bearing, due to
Lubricants capacity is few, and generation moment of friction is low in bearing, and bearing heating amount is small, and bearing rotating speed can be greatly improved；And compressed air
Transport lubricating oil is applied not only to, the cooling effect of bearing can also be improved, and sealing gland is carried out to bearing.Since oil-air lubrication has
The features such as saving oil mass, reducing bearing temperature rise, improve bearing rotating speed is very suitable for the lubrication of high-speed electric main shaft bearing.
But current many oil-air lubrication electro spindle confession accuracies are not high, supplied simultaneously for two bearings commonly using an oil circuit
Oil, and identical oil-air lubrication parameter is used to different bearings.If a use of oil circuit is simultaneously two bearing fuel feeding, if set
Count it is unreasonable two bearing fuel feeding can be caused uneven, since oil-air lubrication is micro lubricating, be easy to cause bearing for shortage of oil, lead
Cause bearing sintering；Since the model of different bearings, operating mode are different, actually required oil-air lubrication parameter is different, according to unified
Lubrication parameter, it is excessive to be easy to cause split bearing fuel delivery, and bearing temperature rise increases.
The content of the invention
In order to overcome above-mentioned technical disadvantages, the limit speed of electro spindle is improved, the present invention provides one kind can be achieved each axis
Accurate, independent oil supply oil-air lubrication high-speed electric main shaft design is held, is designed, ensured by independent oil passage and a plurality of oil return line
The accuracy of bearing fuel feeding, and different lubrication parameters can be used to different bearings.
In order to achieve the above objectives, the present invention adopts the technical scheme that：
A kind of oil-air lubrication high-speed electric main shaft of accurate fuel feeding, including：Housing,
And the in vivo stator of shell is fixed on, housing connects forward and backward bearing chamber, and forward and backward bearing indoor section is not connected serially to
Lack two bearings, dottle pin and the outer dottle pin of bearing, forward and backward bearing support mandrel, with stator phase in bearing are installed between adjacent bearing
The rotor matched somebody with somebody is fixed on mandrel；
Each bearing sets an oil-air lubrication oil circuit respectively, is set and each oil-gas lubricating oil respectively in shell body rear cover
The oil and gas import and oil gas vent that road communicates, the oil-air lubrication nozzle of bearing fuel feeding is respectively arranged on the outer dottle pin of bearing and bearing
Interior, the lubrication oil gas in oil-air lubrication oil circuit spray into bearing by the indoor nozzle of nozzle or bearing of dottle pin outside bearing,
To the inner ring fuel feeding of bearing；
The oil return hole and recovery oil circuit for being arranged at side before and after each bearing are further included, each recovery oil circuit one end is respectively with returning
Oilhole communicates, and the other end meets at a remittance oil groove with other recovery oil circuits, and electro spindle is discharged through the oil outlet on bearing chamber；
It further includes and is arranged at the cooling line of annular cooling bath in vivo with shell and perforation housing in fore bearing room, cooling
Pipeline is connected with the cooling liquid inlet mounted on shell body rear cover and outlet, and cooling line is by enclosure interior and the indoor ring of fore bearing
Shape cooling bath connects, and the coolant in cooling line is water.
Further, two bearings are respectively provided with individual oil-air lubrication oil circuit, two oil-gas lubricating oils in the fore bearing room
Road was located at electro spindle center line and was separated by 30 ° of section respectively；Two bearings are also provided with individual oil gas in bearing room after described
Lubricant passage way, two oil-air lubrication oil circuits were located at electro spindle center line and were separated by 30 ° of section respectively.
Specifically, the oil-air lubrication oil circuit has four, the lubrication oil gas in the first oil-air lubrication oil circuit is from shell body rear cover
Into electro spindle, through housing, fore bearing room, the outer dottle pin of bearing sprays into bearing by the nozzle of outer dottle pin；Second oil-gas lubricating oil
Lubrication oil gas in road enters electro spindle from shell body rear cover, and through housing, fore bearing room is sprayed by the nozzle of fore bearing indoor design
Enter bearing；Lubrication oil gas in 3rd oil-air lubrication oil circuit enters electro spindle from shell body rear cover, and the bearing chamber after passes through rear bearing
The nozzle of indoor design sprays into bearing；Lubrication oil gas in 4th oil-air lubrication oil circuit enters electro spindle from shell body rear cover, after
Bearing chamber, the outer dottle pin of bearing spray into bearing by the nozzle of outer dottle pin.
Specifically, being set in shell body rear cover there are four oil and gas import, an oil gas vent, there are one oil for the setting of fore bearing room
Gas exports；Four oil and gas imports connect four oil-air lubrication oil circuits respectively.
Each bearing lubricating oil circuit is mutual indepedent, and the oil-air lubrication parameter of different operating mode bearings can be adjusted independently, according to front and rear
Model, the load of bearing are different, and front and back bearings fuel delivery can adjust respectively in actual use.
There is recovery oil circuit in side before and after each bearing, respectively there is four oil return lines in forward and backward bearing room, by the forward and backward side of bearing
Lubricating oil centralized recovery, and pass through oil return interface and recycle.
Specifically, being set in fore bearing room there are four oil return hole, respectively before and after two bearings, fore bearing is indoor
Lubricating oil enters oil return line through oil return hole, comes together in the remittance oil groove of fore bearing room, then discharges electricity through the oil outlet on bearing chamber
Main shaft；Four oil return holes are also configured with before and after the indoor bearing of bearing afterwards, by a remittance oil groove unicom, the rear indoor lubrication of bearing
Oil enters oil return line 104 through oil return hole, comes together in the remittance oil groove of rear bearing chamber, and the oil outlet discharge electricity through housing rear end lid is main
Axis.
Further, the oil-air lubrication high-speed electric main shaft of the accurate fuel feeding is in shell body rear cover and housing, housing and fore bearing
The outer dottle pin of room, fore bearing room and bearing, shell body rear cover set with the outer dottle pin junction of rear bearing chamber, rear bearing chamber and bearing and seal
Circle.
Further, the annular cooling bath at least sets three, and wherein at least one annular cooling bath is arranged at fore bearing
Interior, at least two annular cooling baths are arranged in housing.The indoor annular cooling bath of fore bearing is by bearing Interior Layout and bearing
Outdoor set hot charging composition, the in vivo annular cooling bath of shell are made of the annular groove on water jacket and housing, in vivo two annulars of shell
Cooling bath has through hole in electro spindle top design.
The beneficial effects of the invention are as follows：By lubricant passage way, the lubricating nozzle to each design bearing independence, each bearing is realized
Independent fuel feeding ensures the accuracy of each bearing lubrication fuel feeding, and can use different fuel delivery parameters to different bearings；Simultaneously each
The forward and backward side design oil return line of bearing, prevents Bearing inner from trapped fuel occur, the reliability of bearing oil return is realized, so as to fulfill bearing
The accurate control of fuel delivery improves the greasy property of bearing, can further improve the limit speed of electro spindle.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the electro spindle end view of disclosure of the invention；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the B-B sectional views of Fig. 1；
Fig. 4 is the C-C sectional views of Fig. 1.
Wherein：1- mandrels；2- fore bearings；The outer dottle pin of 3- fore bearings；4- fore bearings room；5- housings；6- stators；7- water jackets；
8- rotors；Bearing chamber after 9-；The outer dottle pin of bearing after 10-；Bearing after 11-；Dottle pin in 12- fore bearings；Dottle pin in bearing after 13-；
101- the first oil-air lubrication oil circuits；The 4th oil-air lubrication oil circuits of 102-；103- fore bearings room oil return line；Bearing chamber oil return after 104-
Road；105- the second oil-air lubrication oil circuits；The 3rd oil-air lubrication oil circuits of 106-；107- coolant inlet pipelines；108- coolants go out
Mouth pipeline；The first annular cooling baths of 109-；The annular cooling baths of 110- second；The annular cooling baths of 111- the 3rd；112- cooling baths lead to
Hole.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
The embodiment of the present invention, the every other reality that those of ordinary skill in the art are obtained without making creative work
Example is applied, belongs to the scope of protection of the invention.
With reference to Fig. 1,2,3,4 and specific implementation example, the invention will be further described：
The present invention electro spindle include mandrel 1, fore bearing 2, fore bearing room 4, housing 5, stator 6, water jacket 7, rotor 8, after
Bearing chamber 9, rear bearing 10 etc..Forward and backward bearing chamber is connected by housing 5, and stator 6 is fixed in housing, is matched with stator
Rotor 8 is fixed on mandrel 1.Forward and backward bearing indoor section is not connected two bearings, and dottle pin in bearing is installed between adjacent bearing
12nd, 13 and the outer dottle pin 3,10 of bearing, it is separated by dottle pin 3,10 outside dottle pin in bearing 12,13 and bearing between bearing, axle
Hold support mandrel 1.
4 oil and gas imports, 1 oil gas vent are provided in shell body rear cover, fore bearing room is provided with 1 oil gas vent.4
Oil and gas import corresponds to 4 oil-air lubrication oil circuits respectively.The lubrication of fore bearing passes through the first oil-air lubrication oil circuit 101 and the second oil
It realizes on air lubricating oil road 105.First oil-air lubrication oil circuit is located at section A-A, and lubrication oil gas enters electro spindle by housing rear end, passes through
Housing, fore bearing room, into bearing outside nozzle in dottle pin, spray into bearing and realize lubrication.Second oil-air lubrication oil circuit, which is located at, to be cut
On the B-B of face, lubrication oil gas enters electro spindle by housing rear end, and through housing, fore bearing room enters axis from the indoor nozzle of preceding bearing
It holds, realizes bearing lubrication.It is similar with fore bearing for the three, the 4th lubricant passage ways design of rear bearing fuel feeding.3rd oil-air lubrication
Oil circuit 106 is located at section B-B, and lubrication oil gas enters electro spindle through shell body rear cover, and the bearing chamber after passes through the indoor spray of rear bearing
Mouth sprays into bearing.4th oil-air lubrication oil circuit 102 is located at Section A-A, and lubrication oil gas enters electro spindle through shell body rear cover, through rear axle
Hold room, into rear bearing outside dottle pin, bearing is sprayed by nozzle in dottle pin outside rear bearing, realizes bearing lubrication.
The oil-air lubrication oil circuit outside shell body rear cover and housing, housing and fore bearing room, fore bearing room and bearing dottle pin,
Shell body rear cover sets sealing ring with the outer dottle pin junction of rear bearing chamber, rear bearing chamber and bearing.Two bearings are all provided in fore bearing room
Individual oil-air lubrication oil circuit is put, two oil-air lubrication oil circuits were located at electro spindle center line and are separated by 30 ° of section respectively；Afterwards
Two bearings are also provided with individual oil-air lubrication oil circuit in bearing chamber, and oil-air lubrication oil circuit was located at electro spindle center line and is separated by respectively
On 30 ° of section.
Each bearing has individual oil feeding line in electro spindle, and each oil feeding line does not connect mutually, in structure independently of each other, keeps away
Exempt from interfering with each other between oil circuit, improve the accuracy of oil-air lubrication fuel feeding, and can be according to bearing operating mode to each bearing lubrication
Parameter is adjusted.
4 oil return lines 103 of the fore bearing room for collecting lubricating oil are provided in fore bearing room, fore bearing is provided with 4 in room
A oil return hole, respectively before and after 2 bearings, 4 oil return holes are connected by a remittance oil groove, the indoor lubricating oil warp of fore bearing
Oil return hole enters oil return line 103, comes together in the remittance oil groove of fore bearing room, then discharges electro spindle through the oil outlet on bearing chamber.
4 oil return lines 104 of the fore bearing room for collecting lubricating oil are provided in bearing room afterwards, are also designed before and after the rear indoor bearing of bearing
There are 4 oil return holes, connected by a remittance oil groove, the rear indoor lubricating oil of bearing enters oil return line 104 through oil return hole, after coming together in
In the remittance oil groove of bearing chamber, the oil outlet discharge electro spindle through housing rear end lid.Oil return line design ensures that nothing is deposited in bearing chamber
Oil prevents bearing from excessive lubrication phenomenon occur, improves oil-air lubrication fuel feeding accuracy.
There are 3 annular cooling baths in electro spindle, have cooling bath 111 in fore bearing room, housing is interior, and there are two annular cooling baths
110 and 109.3rd annular cooling bath 111 is made of bearing Interior Layout and bearing chamber housing hot charging, the second annular cooling bath 110
It is made of with first annular cooling bath 109 annular groove on water jacket and housing, the second annular cooling bath 110 and first annular cooling
Slot 109 has through hole 112 in electro spindle top design.The cooling line of cooling liquid inlet and outlet one perforation housing of each correspondence,
Cooling line connects the indoor annular cooling bath of enclosure interior and fore bearing.Coolant enters through coolant inlet pipeline 107
First annular cooling bath 109, after coolant is full of in first annular cooling bath 109, coolant is through annular cooling bath through hole 112
Into the second annular cooling bath 110, the cooling line through being communicated with annular groove enters the 3rd annular cooling bath 111 to coolant again,
Partition plate is designed between 3rd annular 111 entrance of cooling bath and outlet, coolant is full of after the 3rd annular cooling bath 111 through coolant
Export pipeline 108 leaves electro spindle.Coolant reusable edible, coolant are water.
Claims (9)
1. a kind of oil-air lubrication high-speed electric main shaft of accurate fuel feeding, which is characterized in that including housing and to be fixed on shell in vivo
Stator, housing connect forward and backward bearing chamber, and forward and backward bearing indoor section is not connected two bearings, is installed between adjacent bearing in bearing
Dottle pin and the outer dottle pin of bearing, forward and backward bearing support mandrel are fixed on the rotor that stator matches on mandrel；
Each bearing sets an oil-air lubrication oil circuit respectively, is set and each oil-air lubrication oil circuit phase respectively in shell body rear cover
Logical oil and gas import and oil gas vent, sets nozzle on the outer dottle pin of bearing and in bearing chamber, the lubricating oil in oil-air lubrication oil circuit
Gas sprays into bearing by the indoor nozzle of nozzle or bearing of dottle pin outside bearing；
Further include the oil return hole and recovery oil circuit for being arranged at side before and after each bearing, each recovery oil circuit one end respectively with oil return hole
It communicates, the other end meets at a remittance oil groove with other recovery oil circuits, and electro spindle is discharged through the oil outlet on bearing chamber；
It further includes and is arranged at the cooling line of annular cooling bath in vivo with shell and perforation housing in fore bearing room, cooling line
It is connected with the cooling liquid inlet mounted on shell body rear cover and outlet, cooling line is cold by the indoor annular of enclosure interior and fore bearing
But slot connects, and the coolant in cooling line is water.
2. the oil-air lubrication high-speed electric main shaft of accurate fuel feeding according to claim 1, which is characterized in that the fore bearing room
Interior two bearings are respectively provided with individual oil-air lubrication oil circuit, and two oil-air lubrication oil circuits were located at electro spindle center line and are separated by respectively
On 30 ° of section；Two bearings are also provided with individual oil-air lubrication oil circuit, two oil-air lubrication oil circuit difference in bearing room after described
It was located at electro spindle center line to be separated by 30 ° of section.
3. the oil-air lubrication high-speed electric main shaft of accurate fuel feeding according to claim 1, which is characterized in that the oil-air lubrication
Oil circuit has four, and the lubrication oil gas in the first oil-air lubrication oil circuit enters electro spindle from shell body rear cover, through housing, fore bearing room,
The outer dottle pin of bearing sprays into bearing by the nozzle of outer dottle pin；Lubrication oil gas in second oil-air lubrication oil circuit from shell body rear cover into
Enter electro spindle, through housing, fore bearing room sprays into bearing by the nozzle of fore bearing indoor design；In 3rd oil-air lubrication oil circuit
Lubrication oil gas enter electro spindle from shell body rear cover, the bearing chamber after sprays into bearing by the nozzle of rear bearing indoor design；The
Lubrication oil gas in four oil-air lubrication oil circuits enters electro spindle from shell body rear cover, the bearing chamber after, the outer dottle pin of bearing, by outside every
The nozzle of pad sprays into bearing.
4. the oil-air lubrication high-speed electric main shaft of the accurate fuel feeding according to claim 1 or 3, which is characterized in that shell body rear cover
Upper setting is there are four oil and gas import, an oil gas vent, and there are one oil gas vents for the setting of fore bearing room；Four oil and gas import difference
Connect four oil-air lubrication oil circuits.
5. the oil-air lubrication high-speed electric main shaft of accurate fuel feeding according to claim 1, which is characterized in that the oil-air lubrication
Oil circuit does not connect mutually.
6. the oil-air lubrication high-speed electric main shaft of accurate fuel feeding according to claim 1, which is characterized in that the fore bearing room
Interior setting is there are four oil return hole, and respectively before and after two bearings, the indoor lubricating oil of fore bearing enters oil return through oil return hole
Road is come together in the remittance oil groove of fore bearing room, then discharges electro spindle through the oil outlet on bearing chamber；Afterwards before the indoor bearing of bearing
After be also configured with four oil return holes, by a remittance oil groove unicom, the rear indoor lubricating oil of bearing enters oil return line through oil return hole
104, it comes together in the remittance oil groove of rear bearing chamber, the oil outlet discharge electro spindle through housing rear end lid.
7. the oil-air lubrication high-speed electric main shaft of accurate fuel feeding according to claim 1, which is characterized in that shell body rear cover with
Outside the outer dottle pin of housing, housing and fore bearing room, fore bearing room and bearing, shell body rear cover and rear bearing chamber, rear bearing chamber and bearing
Dottle pin junction sets sealing element.
8. the oil-air lubrication high-speed electric main shaft of accurate fuel feeding according to claim 1, it is characterised in that：The annular cooling
Slot at least sets three, and wherein at least one annular cooling bath is arranged in fore bearing room, and at least two annular cooling baths are set
In in housing.
9. the oil-air lubrication high-speed electric main shaft of accurate fuel feeding according to claim 1, it is characterised in that：Fore bearing is indoor
Annular cooling bath is made of bearing Interior Layout and bearing chamber housing hot charging, and the in vivo annular cooling bath of shell is by water jacket and housing
Annular groove forms, and the annular cooling bath of in vivo two of shell has through hole in electro spindle top design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079281.8A CN106735335B (en) | 2017-02-14 | 2017-02-14 | A kind of oil-air lubrication high-speed electric main shaft of accurate fuel feeding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079281.8A CN106735335B (en) | 2017-02-14 | 2017-02-14 | A kind of oil-air lubrication high-speed electric main shaft of accurate fuel feeding |
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| CN106735335A CN106735335A (en) | 2017-05-31 |
| CN106735335B true CN106735335B (en) | 2018-05-18 |
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| CN114012500B (en) * | 2021-11-26 | 2022-12-16 | 珠海格力电器股份有限公司 | Lubricating, cooling and complete machine structure of high-speed electric main shaft |
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| JP3613753B2 (en) * | 1999-03-16 | 2005-01-26 | 株式会社ニイガタマシンテクノ | Spindle device and rolling bearing preload method |
| GB2466998B (en) * | 2009-01-19 | 2011-05-18 | Gsi Group Ltd | Gas bearing spindles and gas bearing assemblies for gas bearing spindles |
| CN202726072U (en) * | 2012-08-26 | 2013-02-13 | 浙江陀曼精密机械有限公司 | Hob spindle mechanism for numerically-controlled gear hobbing machine |
| CN203448680U (en) * | 2013-07-31 | 2014-02-26 | 苏州大学 | Oil-gas lubrication pipeline of spindle structure |
| CN205465456U (en) * | 2016-01-15 | 2016-08-17 | 一拖(洛阳)开创装备科技有限公司 | Lathe high -speed spindle cooling and lubrication device |
| CN206425563U (en) * | 2017-02-14 | 2017-08-22 | 泰安海纳轴研科技有限公司 | A kind of oil-air lubrication high-speed electric main shaft of accurate fuel feeding |
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2017
- 2017-02-14 CN CN201710079281.8A patent/CN106735335B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932454A (en) * | 2019-11-20 | 2020-03-27 | 珠海凯邦电机制造有限公司 | Motor end cover and motor with same |
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| CN106735335A (en) | 2017-05-31 |
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