CN206425563U - 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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- CN206425563U CN206425563U CN201720132670.8U CN201720132670U CN206425563U CN 206425563 U CN206425563 U CN 206425563U CN 201720132670 U CN201720132670 U CN 201720132670U CN 206425563 U CN206425563 U CN 206425563U
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- oil
- bearing
- air lubrication
- housing
- room
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Abstract
The utility model discloses a kind of oil-air lubrication high-speed electric main shaft of accurate fuel feeding, belong to electro spindle technical field.Whole electro spindle in housing, housing including being fixed with stator；Housing two ends are connected with forward and backward bearing chamber, bearing chamber between two bearings of connecting respectively, two bearings and separated by dottle pin in bearing with outer dottle pin；Front and back bearings support the rotor for being provided with and being matched with stator on mandrel, mandrel.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 with 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 single pipeline road, nozzle and return line.The utility model oil-air lubrication oil circuit, nozzle and the oil return line independent by designing, realize the accurate control of the oil-air lubrication parameter of bearing, improve the lubricant effect of bearing, strengthen electro spindle performance.
Description
Technical field
The utility model is related to a kind of electro spindle, and the high speed electricity of more particularly to a kind of accurate fuel feeding of use oil-air lubrication is main
Axle.
Background technology
With the development of high speed machining, requirement more and more higher of the manufacturing industry to lathe rotating speed.It is used as the core of lathe
Part, electro spindle also develops in the direction towards high speed.The gyration of electro spindle depends on the support shaft at mandrel two ends
Hold, the rotating speed and bearing capacity of bearing directly affects the performance of electro spindle.
Lubrication be influence bearing performance a key factor, traditional electric mainshaft bearing lubricating system be generally grease lubrication,
Oil lubrication etc..These lubricating systems are generally excessive lubrication, not only waste of resource, and extra frictional force can be also produced in bearing
Square, influences bearing performance, limits the limit speed of electro spindle.In order to improve bearing rotating speed, oil gas is used current high-speed bearing more
Lubrication.Oil-air lubrication belongs to micro lubricating, is characterized in by compressed air transporting quantitative lubricating oil 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
It is applied not only to transport lubricating oil, the cooling effect of bearing can also be improved, and sealing gland is carried out to bearing.Because oil-air lubrication has
Oil mass is saved, bearing temperature rise is reduced, the features such as improving 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 being simultaneously two bearing fuel feeding, if set
Meter is unreasonable to cause two bearing fuel feeding uneven, because oil-air lubrication is micro lubricating, easily cause bearing fuel feeding deficiency, lead
Cause bearing sintering；Because model, the operating mode of different bearings are different, actually required oil-air lubrication parameter is different, according to unified
Lubrication parameter, it is excessive to be easily caused split bearing fuel delivery, bearing temperature rise increase.
Utility model content
In order to overcome above-mentioned technical disadvantages, the limit speed of electro spindle is improved, the utility model provides a kind of can be achieved
Each bearing is accurate, the design of the oil-air lubrication high-speed electric main shaft of independent oil supply, is designed by independent oil passage and a plurality of oil return line,
Ensure the accuracy of bearing fuel feeding, and different lubrication parameters can be used to different bearings.
To reach above-mentioned purpose, the utility model is adopted the technical scheme that：
A kind of oil-air lubrication high-speed electric main shaft of accurate fuel feeding, including：Housing,
And the stator in housing is fixed on, housing connects forward and backward bearing chamber, and forward and backward bearing indoor section is not connected serially to
Dottle pin and the outer dottle pin of bearing, forward and backward bearing support mandrel, with stator phase in bearing are installed between few two bearings, 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 bar oil-gas lubricating oil respectively in shell body rear cover
Oil and gas import and oil gas vent that road is communicated, the oil-air lubrication nozzle of bearing fuel feeding are respectively arranged on the outer dottle pin of bearing and bearing
Nozzle in the nozzle or bearing chamber that lubrication oil gas in interior, oil-air lubrication oil circuit passes through dottle pin outside bearing sprays into bearing,
To the inner ring fuel feeding of bearing；
Also include the spill port and recovery oil circuit for being arranged at side before and after each bearing, each recovery oil circuit one end is respectively with returning
Oilhole is communicated, 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；
Also include the cooling line for being arranged at annular cooling bath and insertion housing in fore bearing room and in housing, cooling
Pipeline is connected with the cooling liquid inlet installed in shell body rear cover and outlet, and cooling line is by the ring in enclosure interior and fore bearing room
Shape cooling bath is connected, and the coolant in cooling line is water.
Further, two bearings are respectively provided with single 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 single oil gas in the rear bearing room
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 lubrication oil gas in four, the first oil-air lubrication oil circuit 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, 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, bearing is sprayed into by the nozzle of outer dottle pin.
Specifically, being provided with four oil and gas imports, an oil gas vent in shell body rear cover, fore bearing room is provided with an oil
Gas is exported；Four oil and gas imports connect four oil-air lubrication oil circuits respectively.
Each bearing lubricating oil circuit is separate, 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 be adjusted respectively in actual use.
There being in recovery oil circuit, forward and backward bearing room side before and after each bearing respectively has four oil return lines, by the forward and backward side of bearing
Lubricating oil centralized recovery, and reclaimed by oil return interface.
Specifically, four spill ports are provided with fore bearing room, respectively before and after two bearings, in fore bearing room
Lubricating oil enters oil return line through spill port, comes together in the remittance oil groove of fore bearing room, then discharges electricity through the oil outlet on bearing chamber
Main shaft；Four spill ports are also configured with before and after the bearing in bearing room afterwards, the lubrication in a Ge Hui oil grooves UNICOM, rear bearing room
Oil enters oil return line 104 through spill port, comes together in the remittance oil groove of rear bearing chamber, and the oil outlet discharge electricity through housing rear end lid is main
Axle.
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 sealed
Circle.
Further, the annular cooling bath is at least provided with 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.Annular cooling bath in fore bearing room is by bearing Interior Layout and bearing
Annular groove of the annular cooling bath on water jacket and housing in outdoor set hot charging composition, housing is constituted, two in housing annular
Cooling bath has through hole in electro spindle top design.
The beneficial effects of the utility model are：By lubricant passage way, the lubricating nozzle to each design bearing independence, realize each
The independent fuel feeding of bearing, it is ensured that the accuracy of each bearing lubrication fuel feeding, and different fuel delivery parameters can be used to different bearings；Simultaneously
In the forward and backward side design oil return line of each bearing, prevent Bearing inner from trapped fuel occur, realize the reliability of bearing oil return, so as to realize
The accurate control of bearing fuel delivery, improves the greasy property of bearing, can further improve the limit speed of electro spindle.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is electro spindle end view disclosed in utility model；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is Fig. 1 B-B sectional views；
Fig. 4 is Fig. 1 C-C sectional views.
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 oil-air lubrication oil circuits of 102- the 4th；103- fore bearings room oil return line；Bearing chamber oil return after 104-
Road；105- the second oil-air lubrication oil circuits；The oil-air lubrication oil circuits of 106- the 3rd；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.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on embodiment of the present utility model, those of ordinary skill in the art institute under the premise of creative work is not made
The every other embodiment obtained, belongs to the scope of the utility model protection.
With reference to Fig. 1,2,3,4 and specific implementation example, the utility model is further described：
Electro spindle of the present utility model includes mandrel 1, fore bearing 2, fore bearing room 4, housing 5, stator 6, water jacket 7, rotor
8th, rear bearing chamber 9, rear bearing 10 etc..Forward and backward bearing chamber is connected by housing 5, stator 6 is fixed with housing, with stator phase
The rotor 8 matched somebody with somebody is fixed on mandrel 1.Forward and backward bearing indoor section is not connected two bearings, installed between adjacent bearing in bearing every
Separated between pad 12,13 and the outer dottle pin 3,10 of bearing, bearing by dottle pin 3,10 outside dottle pin in bearing 12,13 and bearing, it is forward and backward
Bearings mandrel 1.
4 oil and gas imports, 1 oil gas vent are provided with 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
Realize 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, passed 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 axle from the nozzle in preceding bearing chamber
Hold, realize 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 spray in rear bearing room
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 into by nozzle in dottle pin outside rear bearing, bearing lubrication is realized.
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 with fore bearing room
Single 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 single 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 single oil feeding line in electro spindle, and each oil feeding line is not connected mutually, separate in structure, is kept away
Exempt from interfering 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 with fore bearing room, fore bearing is provided with 4 in room
Individual spill port, respectively before and after 2 bearings, 4 spill ports are connected by a remittance oil groove, the lubricating oil warp in fore bearing room
Spill port 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.
Also set before and after the bearing being provided with afterwards in bearing room in 4 oil return lines 104 of the fore bearing room for collecting lubricating oil, rear bearing room
In respect of 4 spill ports, connected by a remittance oil groove, the lubricating oil in rear bearing room enters oil return line 104 through spill port, comes together in
Afterwards in the remittance oil groove of bearing chamber, the oil outlet discharge electro spindle through housing rear end lid.Oil return line design ensures nothing in bearing chamber
Trapped fuel, prevents bearing from excessive lubrication phenomenon occur, improves oil-air lubrication fuel feeding accuracy.
Have to have in cooling bath 111, housing in 3 annular cooling baths, fore bearing room in electro spindle and there are two annular cooling baths
110 and 109.3rd annular cooling bath 111 is made up of bearing Interior Layout and bearing chamber overcoat hot charging, the second annular cooling bath 110
Constituted with annular groove of the first annular cooling bath 109 on water jacket and housing, the second annular cooling bath 110 and first annular cooling
Groove 109 has through hole 112 in electro spindle top design.The cooling line of each one insertion housing of correspondence of cooling liquid inlet and outlet,
Cooling line connects the annular cooling bath in enclosure interior and fore bearing room.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,
Dividing plate is designed between the 3rd annular entrance of cooling bath 111 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 is water.
Claims (9)
1. a kind of oil-air lubrication high-speed electric main shaft of accurate fuel feeding, it is characterised in that including housing, and be fixed in housing
Stator, housing connects 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 mandrel with the rotor that stator matches；
Each bearing sets an oil-air lubrication oil circuit respectively, is set and each bar oil-air lubrication oil circuit phase respectively in shell body rear cover
Lubricating oil in nozzle, oil-air lubrication oil circuit is set on logical oil and gas import and oil gas vent, the outer dottle pin of bearing and in bearing chamber
Nozzle in the nozzle or bearing chamber that gas passes through dottle pin outside bearing sprays into bearing；
Also include the spill port and recovery oil circuit for being arranged at side before and after each bearing, each recovery oil circuit one end respectively with spill port
Communicate, the other end meets at a remittance oil groove with other recovery oil circuits, electro spindle is discharged through the oil outlet on bearing chamber；
Also include the cooling line for being arranged at annular cooling bath and insertion housing in fore bearing room and in housing, cooling line
It is connected with the cooling liquid inlet installed in shell body rear cover and outlet, cooling line will be annular cold in enclosure interior and fore bearing room
But groove is connected, 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, it is characterised in that the fore bearing room
Interior two bearings are respectively provided with single 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 single oil-air lubrication oil circuit, two oil-air lubrication oil circuit difference in the rear bearing room
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, it is characterised in that the oil-air lubrication
Oil circuit has the lubrication oil gas in four, the first oil-air lubrication oil circuit to enter electro spindle from shell body rear cover, through housing, fore bearing room,
The outer dottle pin of bearing, bearing is sprayed into by the nozzle of outer dottle pin；Lubrication oil gas in second oil-air lubrication oil circuit enters from shell body rear cover
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, it is characterised in that shell body rear cover
On be provided with four oil and gas imports, an oil gas vent, fore bearing room is provided with an oil gas vent；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, it is characterised in that the oil-air lubrication
Oil circuit is not connected mutually.
6. the oil-air lubrication high-speed electric main shaft of accurate fuel feeding according to claim 1, it is characterised in that the fore bearing room
Four spill ports are inside provided with, respectively before and after two bearings, the lubricating oil in fore bearing room enters oil return through spill port
Road, comes together in the remittance oil groove of fore bearing room, then discharges electro spindle through the oil outlet on bearing chamber；Afterwards before the bearing in bearing room
After be also configured with four spill ports, by a Ge Hui oil grooves UNICOM, the lubricating oil in rear bearing room enters oil return line through spill port
104, come 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, it is characterised 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 seal.
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
Groove is at least provided with 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：In fore bearing room
Annular cooling bath is made up of bearing Interior Layout and bearing chamber overcoat hot charging, and the annular cooling bath in housing is on water jacket and housing
Annular groove is constituted, and the annular cooling bath of two in housing has through hole in electro spindle top design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720132670.8U CN206425563U (en) | 2017-02-14 | 2017-02-14 | A kind of oil-air lubrication high-speed electric main shaft of accurate fuel feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720132670.8U CN206425563U (en) | 2017-02-14 | 2017-02-14 | A kind of oil-air lubrication high-speed electric main shaft of accurate fuel feeding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206425563U true CN206425563U (en) | 2017-08-22 |
Family
ID=59590956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720132670.8U Withdrawn - After Issue CN206425563U (en) | 2017-02-14 | 2017-02-14 | A kind of oil-air lubrication high-speed electric main shaft of accurate fuel feeding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206425563U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735335A (en) * | 2017-02-14 | 2017-05-31 | 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 |
| CN108555290A (en) * | 2018-07-12 | 2018-09-21 | 江苏常宝普莱森钢管有限公司 | Mandrel cooling system and plug thermoregulating system |
| 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 |
-
2017
- 2017-02-14 CN CN201720132670.8U patent/CN206425563U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735335A (en) * | 2017-02-14 | 2017-05-31 | 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 |
| CN108555290A (en) * | 2018-07-12 | 2018-09-21 | 江苏常宝普莱森钢管有限公司 | Mandrel cooling system and plug thermoregulating system |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170822 Effective date of abandoning: 20180518 |
|
| AV01 | Patent right actively abandoned |