CN202367536U - Circulating lubrication structure for bearing of tailstock of knife rest main shaft - Google Patents
Circulating lubrication structure for bearing of tailstock of knife rest main shaft Download PDFInfo
- Publication number
- CN202367536U CN202367536U CN 201120562772 CN201120562772U CN202367536U CN 202367536 U CN202367536 U CN 202367536U CN 201120562772 CN201120562772 CN 201120562772 CN 201120562772 U CN201120562772 U CN 201120562772U CN 202367536 U CN202367536 U CN 202367536U
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- CN
- China
- Prior art keywords
- rolling bearing
- oil
- axle sleeve
- knife rest
- rest main
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a circulating lubrication structure for a bearing of a tailstock of a knife rest main shaft. The circulating lubrication structure comprises a knife rest main body, a shaft sleeve and a knife shaft which is arranged in the shaft sleeve by a rolling bearing, wherein the rolling bearing comprises a first rolling bearing arranged at the front end of the shaft sleeve and a second rolling bearing arranged at the rear end of the shaft sleeve; an oil inlet channel and an oil discharge channel are formed on the shaft sleeve, and lubricating oil can flow through the oil inlet channel and the oil discharge channel; an oil outlet of the oil inlet channel is communicated with a ball rail of the first rolling bearing; an oil inlet hole is formed in the knife rest main body; and when the shaft sleeve slides to a dead point from back to front, an oil inlet I is communicated with the oil inlet hole. According to the circulating lubrication structure, a lubricating oil channel is formed on the shaft sleeve, the lubricating oil which flows circularly is led into the rolling bearing on the shaft sleeve to lubricate the rolling bearing, and the rolling bearing is cooled simultaneously, so that when the knife shaft rotates at high speed, the temperature of the rolling bearing is kept within the normal range; and therefore, the damage of the knife shaft, which is caused by the temperature raising of the rolling bearing can be avoided.
Description
Technical field
The utility model relates to a kind of tool spindle tailstock structure, particularly a kind of lubrication system of tool spindle tailstock.
Background technology
Gear-hobbing machine tool spindle tailstock structure comprises: the knife rest main body, be arranged at the axle sleeve on the knife rest main body and be arranged at the hobboing cutter main shaft in the axle sleeve through rolling bearing; Axle sleeve can be done back and forth on the knife rest main body and endwisely slip, and holds out against or loosens hobboing cutter through axle sleeve mobile.Rolling bearing adopts grease lubrication in the prior art, adopts oil lubrication between axle sleeve and the knife rest main body.
Because the hobboing cutter maximum speed of spindle is 1000r/min, in process, hobboing cutter main shaft normal revolution is in the 600r/min scope; So high rotating speed causes the rolling bearing heating bigger, particularly for the bearing of axle sleeve front end, because the eccentric swing of hobboing cutter main shaft is bigger here; Bearing temperature is higher, and the grease lubrication mode can not reduce bearing temperature, and the bearing fit clearance can raise with temperature and reduce; Be prone to cause damage of bearings, and then cause the hobboing cutter main shaft to damage; And, thereby can not directly the lubricating oil between axle and the knife rest main body be incorporated into the bearing place because axle sleeve will do and reciprocatingly slide.
Therefore need improve tool spindle tailstock bearing lubricating system of the prior art, to reduce bearing temperature, bearing rotated flexibly, the protection main shaft is not damaged.
The utility model content
In view of this, the purpose of the utility model provides a kind of tool spindle tailstock bearing circulating lubricating structure, and it can reduce bearing temperature through the oil lubrication bearing.
The utility model tool spindle tailstock bearing circulating lubricating structure; Comprise the knife rest main body, be arranged at the axle sleeve in the knife rest main body and be arranged at the cutter shaft in the axle sleeve through rolling bearing; Said rolling bearing comprises first rolling bearing that is arranged at the axle sleeve front end and second rolling bearing that is arranged at the axle sleeve rear end; Said axle sleeve can reciprocatingly slide on the knife rest main body vertically; Axle sleeve is provided with oil inlet passage and the oil drain passage that supplies lubrication flow to cross, and the oil-in I of said oil inlet passage is arranged on the sleeve outer circle cylinder, and the ball orbit of the oil-out of oil inlet passage and first rolling bearing communicates; Said knife rest main body is provided with a fuel feed hole, when axle sleeve by after when sliding into dead-centre position forward oil-in I and fuel feed hole be communicated with; The oil-in II of said oil drain passage and the ball orbit of second rolling bearing communicate; Axle sleeve by after forward glide direction identical with the direction of axle sleeve forward end from the rear end, the axle sleeve front end is the end near cutter.
The beneficial effect of the utility model: the utility model tool spindle tailstock bearing circulating lubricating structure; Through grease channel is set on axle sleeve; Lubricating oil is introduced in the rolling bearing on the axle sleeve, with the lubricating oil that circulates rolling bearing is lubricated, and simultaneously rolling bearing is cooled off; The temperature maintenance that can guarantee cutter shaft rolling bearing when rotating at a high speed is in normal range (NR), thereby avoids the damage that raises cutter shaft is caused because of the rolling bearing temperature.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is the cutaway view of this tool spindle tailstock bearing circulating lubricating structure.
The specific embodiment
Fig. 1 is the cutaway view of this tool spindle tailstock bearing circulating lubricating structure.
As shown in the figure, the direction of arrow is represented the flow direction of lubricating oil among the figure.Present embodiment tool spindle tailstock bearing circulating lubricating structure; Comprise knife rest main body 1, be arranged at the axle sleeve 2 in the knife rest main body and be arranged at the cutter shaft 3 in the axle sleeve through rolling bearing; Said rolling bearing comprises first rolling bearing 4 and second rolling bearing 5 that is arranged at the axle sleeve rear end that is arranged at the axle sleeve front end; Said axle sleeve 2 can reciprocatingly slide on the knife rest main body vertically; Axle sleeve 2 is provided with the oil inlet passage 6 and oil drain passage 7 that supplies lubrication flow to cross, and the oil-in I of said oil inlet passage 6 is arranged on the sleeve outer circle cylinder, and the ball orbit of the oil-out of oil inlet passage 6 and first rolling bearing 4 communicates; Said knife rest main body 1 is provided with a fuel feed hole 8, when axle sleeve 2 by after when sliding into dead-centre position forward oil-in I and fuel feed hole 8 be communicated with; The oil-in II of said oil drain passage 7 and the ball orbit of second rolling bearing 5 communicate.
The utility model tool spindle tailstock bearing circulating lubricating structure, through grease channel is set on axle sleeve, when axle sleeve 2 by after when sliding into dead-centre position forward; Cutter shaft holds out against hobboing cutter; Hobboing cutter rotates with cutter shaft synchronously, and the frictional force that this moment, first rolling bearing bore is bigger, and temperature raises very fast.The oil-in I of oil inlet passage 6 and fuel feed hole 8 were communicated with when this structure grease channel was worked at hobboing cutter; Lubricating oil is incorporated in the rolling bearing; Lubricating oil with circulating is lubricated rolling bearing; Simultaneously rolling bearing is cooled off, the temperature maintenance that can guarantee cutter shaft rolling bearing when rotating at a high speed is in normal range (NR), thereby avoids the damage that raises cutter shaft is caused because of the rolling bearing temperature.Lubricating oil to having absorbed the rolling bearing temperature flows back to the lubricating oil fuel tank through oil drain passage 7.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (1)
1. tool spindle tailstock bearing circulating lubricating structure; Comprise the knife rest main body, be arranged at the axle sleeve in the knife rest main body and be arranged at the cutter shaft in the axle sleeve through rolling bearing; Said rolling bearing comprises first rolling bearing that is arranged at the axle sleeve front end and second rolling bearing that is arranged at the axle sleeve rear end; Said axle sleeve can reciprocatingly slide on the knife rest main body vertically; It is characterized in that: axle sleeve is provided with oil inlet passage and the oil drain passage that supplies lubrication flow to cross, and the oil-in I of said oil inlet passage is arranged on the sleeve outer circle cylinder, and the ball orbit of the oil-out of oil inlet passage and first rolling bearing communicates; Said knife rest main body is provided with a fuel feed hole, when axle sleeve by after when sliding into dead-centre position forward oil-in I and fuel feed hole be communicated with; The oil-in II of said oil drain passage and the ball orbit of second rolling bearing communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120562772 CN202367536U (en) | 2011-12-29 | 2011-12-29 | Circulating lubrication structure for bearing of tailstock of knife rest main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120562772 CN202367536U (en) | 2011-12-29 | 2011-12-29 | Circulating lubrication structure for bearing of tailstock of knife rest main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202367536U true CN202367536U (en) | 2012-08-08 |
Family
ID=46591259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120562772 Expired - Fee Related CN202367536U (en) | 2011-12-29 | 2011-12-29 | Circulating lubrication structure for bearing of tailstock of knife rest main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202367536U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302317A (en) * | 2013-06-17 | 2013-09-18 | 宜昌长机科技有限责任公司 | Self-lubrication cooled type gear shaper spindle structure |
| CN103737031A (en) * | 2013-11-26 | 2014-04-23 | 李仕清 | Tailstock connecting sleeve with cooling device and water nozzle |
| CN104139320A (en) * | 2014-07-04 | 2014-11-12 | 南京理工大学 | Device for cooling angular contact ball bearing of feed system |
| CN104329447A (en) * | 2013-10-30 | 2015-02-04 | 柳州正菱重型数控机床有限公司 | Heavy-load high-speed main shaft cooling device |
-
2011
- 2011-12-29 CN CN 201120562772 patent/CN202367536U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302317A (en) * | 2013-06-17 | 2013-09-18 | 宜昌长机科技有限责任公司 | Self-lubrication cooled type gear shaper spindle structure |
| CN103302317B (en) * | 2013-06-17 | 2017-11-10 | 宜昌长机科技有限责任公司 | A kind of self-lubricate cooled main axis of gear shaper structure |
| CN104329447A (en) * | 2013-10-30 | 2015-02-04 | 柳州正菱重型数控机床有限公司 | Heavy-load high-speed main shaft cooling device |
| CN104329447B (en) * | 2013-10-30 | 2017-04-19 | 柳州正菱重型数控机床有限公司 | Heavy-load high-speed main shaft cooling device |
| CN103737031A (en) * | 2013-11-26 | 2014-04-23 | 李仕清 | Tailstock connecting sleeve with cooling device and water nozzle |
| CN104139320A (en) * | 2014-07-04 | 2014-11-12 | 南京理工大学 | Device for cooling angular contact ball bearing of feed system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |