CN104141698A - Cooling structure for machine tool spindle bearing - Google Patents
Cooling structure for machine tool spindle bearing Download PDFInfo
- Publication number
- CN104141698A CN104141698A CN201410338074.6A CN201410338074A CN104141698A CN 104141698 A CN104141698 A CN 104141698A CN 201410338074 A CN201410338074 A CN 201410338074A CN 104141698 A CN104141698 A CN 104141698A
- Authority
- CN
- China
- Prior art keywords
- bearing
- machine tool
- cooling structure
- cooling
- tool spindle
- 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.)
- Pending
Links
Abstract
The invention discloses a cooling structure for a machine tool spindle bearing. The cooling structure comprises a cooling fan fixed above a spindle, and thus the purpose of changing the situation that the temperature of the machine tool spindle bearing is too high is achieved. Through the scheme, the cooling conditions of the machine tool spindle bearing can be improved, and the cooling structure is low in cost, capable of having effect fast, high in operability and capable of obviously lowering the temperature of the machine tool spindle bearing and thus reaches and even goes beyond the national standard of China.
Description
Technical field
The present invention relates to a kind of structure of machine tool component, relate in particular to machine tool mainshaft bearing cooling structure.
Background technique
The temperature rise of machine tool mainshaft bearing is existing explicitly calling in NBS, and as just explicitly called for its temperature rise must not surpass 40 ゜ in the middle of NBS, maximum temperature must not surpass 70 ゜, and the life-span of bearing is seriously shortened in the too high meeting of simultaneous temperature.In the situation that load is little, can select plain spindle bearing structure, so also can effectively reduce the temperature rise of bearing.But in the situation that needing heavy load, some must use heavy bearing, and for the requirement of machine tool chief axis endoporus punishment in advance, machine tool mainshaft bearing model is generally used greatlyr, rolling element and raceway area of contact are also large, under same rotating speed, linear velocity is high, so the type bearing generates heat seriously when high speed, not only affects machine tool accuracy, when serious, also can make at short notice bearing occur the situations such as spot corrosion, raceway burn, directly cause scrapping of bearing.
Summary of the invention
For structure, need, the structure at machine tool mainshaft bearing two ends is: one end is the casing bearing step for bearing location, the other end is the bearing (ball) cover with sealing configuration, so the air circulation at this place is poor, the serious diffusion that hinders heat, thereby make bearing temperature fast rise, cause the loss of precision or the shortening in working life; While using grease lubrication, can hinder the diffusion of heat simultaneously, and because its flow is too little, also not have cooling action while using thin oil lubricant.
The technical solution used in the present invention is: in machine tool mainshaft bearing rear end, increase a radiation fan, the blade of this fan, to lopsidedness, can form the air-flow perpendicular to end face when rotated.During main shaft rotation, drive fan to rotate, form an air-flow that ring main shaft blows vertically, by the gap between bearing roller and raceway, the heat that bearing rotary is produced takes casing outside vertically to, thereby reaches the object of heat radiation.
The middle low speed following heating value of machine tool mainshaft bearing temperature in its rated speed is very little, more than the rotating speed of main heating still concentrates on high speed.Although so cooling fan with in main shaft rotation during at middle low speed air quantity little, radiating effect is poor, main shaft bearing because of the heat of the low same generation of rotating speed few, bearing temperature changes little; When main shaft high speed is rotated, bearing rotating speed is high, and heating value is large, but the same rotating speed of radiation fan is high, and rapid heat dissipation, so can play the effect of heat radiation.
Accompanying drawing explanation
Fig. 1 is the present invention program's schematic diagram
Fig. 2 is the present invention program's stereogram.
Embodiment
Fan diameter and bearing outside diameter are roughly suitable, and endoporus matches with main shaft external diameter, near bearing end, are provided with multi-disc fan leaf, and its true dip direction is contrary with main shaft forward direction.
Radiation fan is fixed on main shaft, and position is positioned at bearing inner side and near bearing place, can not has the component such as gear, flange plate to stop between fan and bearing.
During main shaft rotation, drive cooling fan to rotate together, the air-flow of generation is about to its heat and takes away together when by bearing, plays the effect that reduces bearing.
The direction that produces air-flow due to fan is fixed, thus when the air-flow of main shaft fan generation during in forward be to blow to bearing, play the effect of cooling bearing; When main shaft when reversion wind direction contrary, cannot cooling bearing, but the probability of main shaft reversion is very low, especially universal along with numerical control machine tool, the positive backward feed of live axle and machine tool chief axis clockwise and anticlockwise are separated, use the probability of main shaft reversion lower, so bearing is cooling during main shaft reversion, do not pay attention to.
Through installing additional bearing after cooling fan radiating condition be improved significantly, effectively reduce the temperature rise of bearing when limit speed, thereby the precision that is more conducive to bearing keeps and increases the service life.
Claims (4)
1. a machine tool mainshaft bearing cooling structure, is applied to the cooling of machine tool mainshaft bearing, comprises the fan that can produce vertically air-flow.
2. it is characterized in that: fan is fixed on to machine tool chief axis near bearing end, and rotates with main shaft.
3. machine tool mainshaft bearing cooling structure according to claim 2, is characterized in that: for cooling machine bearing is the fan that can produce vertically air-flow.
4. machine tool mainshaft bearing cooling structure according to claim 2, is characterized in that: the fan for cooling machine tool mainshaft bearing is fixed on main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410338074.6A CN104141698A (en) | 2014-07-16 | 2014-07-16 | Cooling structure for machine tool spindle bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410338074.6A CN104141698A (en) | 2014-07-16 | 2014-07-16 | Cooling structure for machine tool spindle bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104141698A true CN104141698A (en) | 2014-11-12 |
Family
ID=51850976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410338074.6A Pending CN104141698A (en) | 2014-07-16 | 2014-07-16 | Cooling structure for machine tool spindle bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104141698A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB651164A (en) * | 1947-07-22 | 1951-03-14 | Electro Mecanique De Laveyron | Improvements in devices to prevent overheating of the bearings of rotary shafts, in particular shafts of electrical apparatus such as electric brakes |
| GB2400419A (en) * | 2003-04-12 | 2004-10-13 | Rolls Royce Plc | Air cooled bearing assembly |
| CN1666026A (en) * | 2003-07-04 | 2005-09-07 | 三菱电机株式会社 | Magnetic bearing device |
| CN201252445Y (en) * | 2008-09-23 | 2009-06-03 | 湘潭电机股份有限公司 | Vertical-type motor air-to-air cooling thrust bearing device |
| CN102003466A (en) * | 2010-11-02 | 2011-04-06 | 西安瑞特快速制造工程研究有限公司 | Rolling bearing dust prevention and temperature reduction device |
-
2014
- 2014-07-16 CN CN201410338074.6A patent/CN104141698A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB651164A (en) * | 1947-07-22 | 1951-03-14 | Electro Mecanique De Laveyron | Improvements in devices to prevent overheating of the bearings of rotary shafts, in particular shafts of electrical apparatus such as electric brakes |
| GB2400419A (en) * | 2003-04-12 | 2004-10-13 | Rolls Royce Plc | Air cooled bearing assembly |
| CN1666026A (en) * | 2003-07-04 | 2005-09-07 | 三菱电机株式会社 | Magnetic bearing device |
| CN201252445Y (en) * | 2008-09-23 | 2009-06-03 | 湘潭电机股份有限公司 | Vertical-type motor air-to-air cooling thrust bearing device |
| CN102003466A (en) * | 2010-11-02 | 2011-04-06 | 西安瑞特快速制造工程研究有限公司 | Rolling bearing dust prevention and temperature reduction device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204664197U (en) | A kind of bearing of convenient heat radiation | |
| CN201561063U (en) | Tilting-pad bearing for high-speed rotating machine | |
| CN102744428A (en) | Air cooling electric spindle device for precision numerical control lathe | |
| CN204664194U (en) | The bearing of convenient heat radiation | |
| CN204477077U (en) | With the rolling bearing retainer of radiating fin | |
| CN103047014B (en) | Heat insulation plate structure | |
| CN104141698A (en) | Cooling structure for machine tool spindle bearing | |
| CN204615597U (en) | Speed-adjusting-type permanent-magnet eddy-current coupling | |
| CN105179464A (en) | Highly non-compact lubricant-containing ceramic bearing | |
| CN205141922U (en) | External rotor motor | |
| CN105387067B (en) | High speed guide and guard bearing | |
| CN107725585A (en) | A kind of wear-resistant bearing of active heat removal | |
| CN203906300U (en) | Self-cooling double-oil tank roots blower | |
| CN104074795A (en) | High-speed shaft seal structure | |
| CN102394529A (en) | Fan air-cooled automatic tool change electric spindle used for carpentry carving and milling | |
| CN103115072B (en) | A kind of sealing configuration of oil-lubricated bearing | |
| CN102797851B (en) | For the Simmer ring of the sealing oil formula sealing system of the generator of hydrogen_cooling | |
| CN204664196U (en) | A kind of high temperature resistant bearing | |
| CN204271771U (en) | A kind of electro spindle rotor assembly structure | |
| CN203942404U (en) | Rotor antistatic discharge device | |
| CN207500480U (en) | A kind of mechanical seal with supplement heat rejecter lubricating arrangement | |
| CN204664195U (en) | The heat-resisting bearing of a kind of Magnetic drive | |
| CN203641115U (en) | Bearing cooling device for circulating fan | |
| CN204458819U (en) | Novel wear resistant silicon nitride ceramics bearing | |
| CN204685300U (en) | Horizontal screw centrifuge and differential mechanism heat abstractor thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141112 |