CN203664691U - Turning lathe spindle - Google Patents
Turning lathe spindle Download PDFInfo
- Publication number
- CN203664691U CN203664691U CN201420036856.XU CN201420036856U CN203664691U CN 203664691 U CN203664691 U CN 203664691U CN 201420036856 U CN201420036856 U CN 201420036856U CN 203664691 U CN203664691 U CN 203664691U
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- CN
- China
- Prior art keywords
- bearing
- main shaft
- spindle
- labyrinth seal
- support device
- 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.)
- Expired - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a turning lathe spindle. A spindle is in labyrinth seal matching with a front end cover with a water outlet, an outer wall of the spindle is provided with a bearing supporting step 10 for sleeving a front supporting device and a rear supporting device, and the front supporting device is composed of a first bearing, a second bearing and a third bearing. A bearing spacer bush is arranged between the first bearing and the second bearing, and the rear supporting device is composed of a fourth bearing, a bearing spacer bush and a fifth bearing. A bearing pressing cover in threaded connection with the spindle is arranged on the other side of the third bearing opposite to the second bearing, a pressing spacer ring is arranged between the bearing pressing cover and the third bearing, and a labyrinth seal ring is arranged on the other side of the fifth bearing opposite to the fourth bearing. A rear end cover is in clearance fit with the labyrinth seal ring, a transmission device is composed of a synchronous belt gear and a belt pulley and is in interference fit with the spindle, the face of the transmission device in contact with the spindle is provided with a flat key, a component spacer ring is arranged between the synchronous belt gear and the labyrinth seal ring, a pressing nut is arranged on one side of the belt pulley, and the rear end of the spindle is in threaded connection with an oil cylinder connecting flange.
Description
Technical field
The utility model relates to a kind of turned part, and more particularly, it is a kind of turning lathe main shaft.
Background technology
At present, because machine tool can not meet the demand in market, so China requires more and more higher to high-precision digital control lathe, and the main required precision of these lathes is on lathe spindle, thus mostly lathe spindle by external import, so but these high-precision bearings by be that import brings a high price, and the main shaft that China produces exists, precision is not high, and speed is slower, and very large noise is not steadily sent in operation.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of high speed, high-precision, maidenliness, and the low turning lathe main shaft of price.
For achieving the above object, the utility model provides following technical scheme: a kind of drive end bearing bracket is provided with labyrinth seal groove and discharge outlet, front-end of spindle is provided with the labyrinth seal main body being sealed and matched with labyrinth seal groove, drive end bearing bracket and main shaft form matched in clearance, main shaft is hollow cylinder, spindle outer wall is provided with bearing supporting step for sheathed front support device, rear support device, front support device is by clutch shaft bearing, the second bearing, the 3rd bearing composition, between clutch shaft bearing and the second bearing, be provided with bearing spacer, rear support device is by the 4th bearing, the 5th bearing composition, at the 4th bearing, between the 5th bearing, be provided with bearing spacer, clutch shaft bearing abuts against on drive end bearing bracket, relative the second bearing opposite side of the 3rd bearing is provided with the bearing gland being connected with spindle thread, between bearing gland and the 3rd bearing, be provided with compression spacer ring, relative the 4th bearing opposite side of the 5th bearing is provided with labyrinth seal ring, rear end cap and labyrinth seal ring form matched in clearance, transmission device is by synchronizing belt gear, belt pulley composition, transmission device and main shaft form interference fit, transmission device and main shaft contact-making surface are provided with flat key, between synchronizing belt gear and labyrinth seal ring, be provided with parts spacer ring, belt pulley one side is provided with clamp nut, rear-end of spindle is provided with oil cylinder adpting flange, oil cylinder adpting flange is connected with spindle thread.
By employing technique scheme, between spindle unit, connect closely, and arrange rationally, make main shaft arrive high speed, high-precision, maidenliness, and the low effect of price.
The utility model is further set to: bearing spacer band is magnetic.
By adopting technique scheme, in Tutrning Process, can produce more iron filings, iron powder, although main shaft is provided with labyrinth seal ring, but main shaft use, standing time can enter some iron powders after having grown unavoidably, and these iron powders are easy to cause main shaft to damage, and bearing spacer band is magnetic, the iron powder adsorption entering is lived, make main shaft improve service life.
The utility model is further set to: oil cylinder adpting flange is connected with main shaft threaded one end, is provided with hold-down bolt in adpting flange side.
By adopting technique scheme, oil cylinder adpting flange directly uses and is threaded on main shaft, while work due to main shaft, it is High Rotation Speed, when screw thread is because longevity of service causes becoming flexible, easily cause the accident at work, and be provided with hold-down bolt in oil cylinder adpting flange side, oil cylinder adpting flange is connected tightr with main shaft.
The utility model is further set to: collar bush arranges locking nut on rear end, is evenly distributed 6 screwed holes on locking nut.
By adopting technique scheme, lathe spindle uses locking nut just can be fixed and be connected with lathe.
Accompanying drawing explanation
Fig. 1 is the installation diagram of the utility model turning lathe main shaft embodiment;
Fig. 2 is the enlarger schematic diagram of the utility model turning lathe main shaft embodiment.
Accompanying drawing example: 1, main shaft; 2, collar bush; 3, front support device; 4, rear support device; 5, drive end bearing bracket; 6, rear end cap; 7, transmission device; 8, oil cylinder adpting flange; 9, bearing gland; 10, bearing supporting step; 11, locking nut; 12, clamp nut; 13, bearing spacer; 14, labyrinth seal ring; 15, discharge outlet.
The specific embodiment
With reference to Fig. 1, the utility model turning lathe main shaft embodiment is described further.
A kind of turning lathe main shaft, comprise main shaft 1, drive end bearing bracket 5, rear end cap 6, collar bush 2, transmission device 7, collar bush 2 is enclosed within on main shaft 1, in the gap of collar bush 2 and main shaft 1, be provided with front support device 3 and rear support device 4, drive end bearing bracket 5, rear end cap 6 is fixedly connected on respectively collar bush 2 two ends, transmission device 7 is fixedly connected on main shaft 1 rear end, it is characterized in that: drive end bearing bracket 5 is provided with labyrinth seal groove and discharge outlet 15, main shaft 1 front end is provided with the labyrinth seal main body being sealed and matched with labyrinth seal groove, drive end bearing bracket 5 forms matched in clearance with main shaft 1, main shaft 1 is hollow cylinder, main shaft 1 outer wall is provided with bearing supporting step 10 for sheathed front support device 3, rear support device 4, front support device 3 is by clutch shaft bearing, the second bearing, the 3rd bearing composition, between clutch shaft bearing and the second bearing, be provided with bearing spacer 13, rear support device 4 is by the 4th bearing, the 5th bearing composition, at the 4th bearing, between the 5th bearing, be provided with bearing spacer 13, clutch shaft bearing abuts against on drive end bearing bracket 5, relative the second bearing opposite side of the 3rd bearing is provided with the bearing gland 9 being threaded with main shaft 1, bearing gland 9 sides are provided with fastening bolt, between bearing gland 9 and the 3rd bearing, be provided with compression spacer ring, relative the 4th bearing opposite side of the 5th bearing is provided with labyrinth seal ring 14, rear end cap 6 forms matched in clearance with labyrinth seal ring 14, transmission device 7 is by synchronizing belt gear, belt pulley composition, transmission device 7 forms interference fit with main shaft 1, transmission device 7 is provided with flat key with main shaft 1 contact-making surface, between synchronizing belt gear and labyrinth seal ring 14, be provided with parts spacer ring, belt pulley one side is provided with clamp nut 12, main shaft 1 rear end is provided with oil cylinder adpting flange 8, oil cylinder adpting flange 8 is threaded with main shaft 1.
In Tutrning Process, can produce more iron filings, iron powder, although main shaft 1 is provided with labyrinth seal ring 14, but main shaft 1 uses, can enter unavoidably some iron powders standing time after having grown, and these iron powders are easy to cause main shaft 1 to damage, and bearing spacer 13 bands are magnetic, the iron powder adsorption entering is lived, make main shaft 1 improve service life.
Oil cylinder adpting flange 8 directly uses and is threaded on main shaft 1, while work due to main shaft 1, it is High Rotation Speed, when screw thread is because longevity of service causes becoming flexible, easily cause the accident at work, and be provided with hold-down bolt in oil cylinder adpting flange 8 sides, make oil cylinder adpting flange 8 be connected tightr with main shaft 1.
Collar bush arranges locking nut 11 on 2 rear ends, is evenly distributed 6 screwed holes on locking nut 11, and lathe spindle 1 uses locking nut 11 just can be fixed and be connected with lathe.
Front support device 3 compresses with crossing bearing gland 9, make firm being connected on main shaft 1 of front support device 3, bearing gland 9 is by being threaded on main shaft 1, be provided with fastening bolt in bearing gland 9 sides, bearing gland 9 is difficult in main shaft 1 rotary course loosening, further make 3 assemblings of front support device firm, on drive end bearing bracket 5, labyrinth seal is set, end cap and labyrinth seal mode are combined, main shaft 1 installation steps are reduced, discharge outlet 15 on drive end bearing bracket 5 can be discharged the cutting lubricant flowing into, the hold-down bolt that the side of cylinder adpting flange arranges makes to be threaded and there will not be loosening phenomenon, greatly improve main shaft 1 balance when rotated, thereby main shaft 1 precision and speed are improved, reduce the noise producing in main shaft 1 work.
Claims (4)
1. a turning lathe main shaft, comprise main shaft, drive end bearing bracket, rear end cap, collar bush, transmission device, collar bush is enclosed within on main shaft, in the gap of collar bush and main shaft, be provided with front support device and rear support device, drive end bearing bracket, rear end cap is fixedly connected on respectively collar bush two ends, transmission device is fixedly connected on rear-end of spindle, it is characterized in that: drive end bearing bracket is provided with labyrinth seal groove and discharge outlet, front-end of spindle is provided with the labyrinth seal main body being sealed and matched with labyrinth seal groove, drive end bearing bracket and main shaft form matched in clearance, main shaft is hollow cylinder, spindle outer wall is provided with bearing supporting step for sheathed front support device, rear support device, front support device is by clutch shaft bearing, the second bearing, the 3rd bearing composition, between clutch shaft bearing and the second bearing, be provided with bearing spacer, rear support device is by the 4th bearing, the 5th bearing composition, at the 4th bearing, between the 5th bearing, be provided with bearing spacer, clutch shaft bearing abuts against on drive end bearing bracket, relative the second bearing opposite side of the 3rd bearing is provided with the bearing gland being connected with spindle thread, bearing gland side is provided with fastening bolt, between bearing gland and the 3rd bearing, be provided with compression spacer ring, relative the 4th bearing opposite side of the 5th bearing is provided with labyrinth seal ring, rear end cap and labyrinth seal ring form matched in clearance, transmission device is by synchronizing belt gear, belt pulley composition, transmission device and main shaft form interference fit, transmission device and main shaft contact-making surface are provided with flat key, between synchronizing belt gear and labyrinth seal ring, be provided with parts spacer ring, belt pulley one side is provided with clamp nut, rear-end of spindle is provided with oil cylinder adpting flange, oil cylinder adpting flange is connected with spindle thread.
2. turning lathe main shaft according to claim 1, is characterized in that: bearing spacer band is magnetic.
3. turning lathe main shaft according to claim 2, is characterized in that: oil cylinder adpting flange is connected with main shaft threaded one end, is provided with hold-down bolt in adpting flange side.
4. turning lathe main shaft according to claim 3, is characterized in that: collar bush arranges locking nut on rear end, is evenly distributed 6 screwed holes on locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036856.XU CN203664691U (en) | 2014-01-21 | 2014-01-21 | Turning lathe spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036856.XU CN203664691U (en) | 2014-01-21 | 2014-01-21 | Turning lathe spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203664691U true CN203664691U (en) | 2014-06-25 |
Family
ID=50961025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420036856.XU Expired - Fee Related CN203664691U (en) | 2014-01-21 | 2014-01-21 | Turning lathe spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203664691U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148678A (en) * | 2014-08-08 | 2014-11-19 | 无锡机床股份有限公司 | Main shaft structure for vehicle head |
| CN104669362A (en) * | 2015-02-11 | 2015-06-03 | 四川省青城机械有限公司 | Centrifugal feeder spindle system |
| CN105290430A (en) * | 2015-12-04 | 2016-02-03 | 思维福特南通精密机械有限公司 | High-speed numerical-control lathe spindle |
| CN106694975A (en) * | 2017-03-22 | 2017-05-24 | 宁波精益飞达轴业有限公司 | Milling head of worm whirlwind cutting machine |
| CN108672725A (en) * | 2018-08-03 | 2018-10-19 | 隆昌精机有限公司 | Milling machine spindle |
| CN108817422A (en) * | 2018-08-30 | 2018-11-16 | 广东今科机床有限公司 | A kind of composite metal stock-removing machine main shaft |
| CN111618319A (en) * | 2020-06-09 | 2020-09-04 | 中山市宇洋数控机械有限公司 | Main shaft structure of precision machining center |
-
2014
- 2014-01-21 CN CN201420036856.XU patent/CN203664691U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148678A (en) * | 2014-08-08 | 2014-11-19 | 无锡机床股份有限公司 | Main shaft structure for vehicle head |
| CN104669362A (en) * | 2015-02-11 | 2015-06-03 | 四川省青城机械有限公司 | Centrifugal feeder spindle system |
| CN105290430A (en) * | 2015-12-04 | 2016-02-03 | 思维福特南通精密机械有限公司 | High-speed numerical-control lathe spindle |
| CN106694975A (en) * | 2017-03-22 | 2017-05-24 | 宁波精益飞达轴业有限公司 | Milling head of worm whirlwind cutting machine |
| CN108672725A (en) * | 2018-08-03 | 2018-10-19 | 隆昌精机有限公司 | Milling machine spindle |
| CN108817422A (en) * | 2018-08-30 | 2018-11-16 | 广东今科机床有限公司 | A kind of composite metal stock-removing machine main shaft |
| CN111618319A (en) * | 2020-06-09 | 2020-09-04 | 中山市宇洋数控机械有限公司 | Main shaft structure of precision machining center |
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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: 20140625 Termination date: 20160121 |
|
| EXPY | Termination of patent right or utility model |