CN202291424U - Hot-interference locking sleeve structure - Google Patents
Hot-interference locking sleeve structure Download PDFInfo
- Publication number
- CN202291424U CN202291424U CN2011203304829U CN201120330482U CN202291424U CN 202291424 U CN202291424 U CN 202291424U CN 2011203304829 U CN2011203304829 U CN 2011203304829U CN 201120330482 U CN201120330482 U CN 201120330482U CN 202291424 U CN202291424 U CN 202291424U
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- Prior art keywords
- hot
- locking sleeve
- interference
- lock sleeve
- interference locking
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- Expired - Fee Related
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- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000013011 mating Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model relates to an axial locking device, in particular to a hot-interference locking sleeve structure. An inner hole of a hot-interference locking sleeve is in a stair structure shape, a corresponding shaft part is of a stair structure, two different hole diameters in the hot-interference locking sleeve form stairs, each stair has relatively large interference fit on a shaft, and a pressure oil filling passage is arranged on the hot-interference locking sleeve. By adopting the hot-interference locking sleeve structure, assembling and disassembling can be stably controlled once certain oil pressure is achieved during disassembling. Compared with a traditional shaft sleeve, the design of the hot-interference locking sleeve is safer when a spindle is in high-speed rotating, accuracy is higher, and dismantling is more convenient.
Description
Technical field
The utility model relates to a kind of shaft lock device, is a kind of hot interference lock sleeve structure.
Background technology
Because to the designing requirement of modern Digit Control Machine Tool (like plane milling and boring machine) be high-power, at a high speed, high rigidity, high reliability.So modular construction correct, designing machine tools part and function admirable targetedly is to guarantee that lathe keeps high-precision important measures under dynamic and static stress condition.On the other hand; The smear metal efficient of lathe, the surface quality of workpiece to be machined and precision are directly relevant with the precision of machine-tool spindle system; So the height of the design of machine tool spindles and inner body thereof, processing, assembly quality directly affects the precision of whole lathe; So the correct design of part has very important practical significance in these parts.
Traditional main shaft bearing locking device is a helicitic texture in the prior art, but screwing element its degree of accuracy of when assembling is difficult for holding, and in addition, traditional screw-threaded coupling device can not guarantee enough precision when high speed.
A kind of in addition locking device relatively more commonly used is an axle sleeve, and promptly axle sleeve uses cylindrical interference to cooperate with main shaft, but between axle sleeve and the axle long cylinder mating surface is arranged; Axle sleeve generally can not come off fully; Axle sleeve is stuck in axle and also need adds uniform axial load when lasting or make its separation with the strong drawbench of imitating, if it is improper to apply external force, is prone to main shaft generation impact; Cause some defective of mating surface, influence the main shaft precision.
Summary of the invention
The purpose of the utility model is to deficiency of the prior art, designs a kind of through the easy-to-dismount hot interference lock sleeve structure of creosoting process, with the influence of avoiding in the operating process main shaft precision being caused.
Constituting of the said hot interference lock sleeve structure of the utility model; Hot interference lock sleeve endoporus is the hierarchic structure shape; Corresponding with it shaft portion also is designed to hierarchic structure; Two different apertures form ladder in the hot interference lock sleeve, and each ladder all has bigger interference fit on axle, and hot interference lock sleeve is provided with the pressure oil injection channel.
Axle sleeve is through heating installation, creosoting process dismounting, thereby assembly manipulation is very little to the influence of main shaft element.During dismantling, the interference fit face in two different apertures forms the pressure face ladder, as long as reach certain oil pressure, assembling and dismounting just are able to stable control.Compare with traditional axle sleeve, in lathe, adopt the hot interference lock sleeve design of this kind, safer when main shaft rotates at a high speed, precision is higher, and is more convenient during dismounting.
Description of drawings
Accompanying drawing 1: hot interference cover sketch map;
Accompanying drawing 2: the partial enlarged drawing among Fig. 1.
The specific embodiment
In conjunction with embodiment the said hot interference lock sleeve structure of the utility model is described further.Hot interference lock sleeve 1 endoporus is the hierarchic structure shape, and corresponding with it axle 2 parts also are designed to hierarchic structure, and hot interference lock sleeve 1 interior two different apertures form ladder, and (seeing d1 and d2 in the accompanying drawing 1) has small diameter difference therebetween.This hot interference lock sleeve can be used as the axial location of front-end of spindle precision bearing.Two different apertures form ladder, and each ladder all has interference fit on axle 2.Hot interference lock sleeve 1 is provided with pressure oil injection channel 3.
The said hot interference lock sleeve structure of the utility model; Wherein hot interference lock sleeve mainly is in order effectively to lock and make things convenient for the dismounting of lock sleeve, precision spindle bearing with the design of axle mating surface; While also can be simplified the alignment work after the installation, and fabulous processing performance is arranged.Give hot interference lock sleeve injection pressure oil; After oil pressure reaches certain value; Will between axle and lock sleeve mating surface, produce radial pressure, lock sleeve swells and makes axle and lock sleeve radial separation, simultaneously because the lock sleeve bore design becomes hierarchic structure; Lock sleeve receives an axial force, and the interference lock sleeve is slowly withdrawed from vertically.
Claims (2)
1. a hot interference lock sleeve structure is characterized in that, hot interference lock sleeve endoporus is the hierarchic structure shape, and corresponding with it shaft portion also is a hierarchic structure, and hot interference lock sleeve is provided with the pressure oil injection channel.
2. according to the said hot interference lock sleeve structure of claim 1, it is characterized in that hot interference lock sleeve endoporus hierarchic structure forms ladder by two kinds of apertures, each ladder all has interference fit on axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203304829U CN202291424U (en) | 2011-09-05 | 2011-09-05 | Hot-interference locking sleeve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203304829U CN202291424U (en) | 2011-09-05 | 2011-09-05 | Hot-interference locking sleeve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202291424U true CN202291424U (en) | 2012-07-04 |
Family
ID=46360404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203304829U Expired - Fee Related CN202291424U (en) | 2011-09-05 | 2011-09-05 | Hot-interference locking sleeve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202291424U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862224A (en) * | 2012-12-11 | 2014-06-18 | 上海电气集团上海电机厂有限公司 | Disassembling method of nylon ferrule of coupler of medium-sized motor |
| CN104625696A (en) * | 2015-02-13 | 2015-05-20 | 湘潭电机股份有限公司 | Method and tool for interference assembling conical-surface shaft and conical sleeve |
| CN105584201A (en) * | 2016-03-09 | 2016-05-18 | 苏州华策纺织科技有限公司 | Improved cleaning doctor locking sleeve structure of rotary screen printing machine |
| CN105774201A (en) * | 2016-03-09 | 2016-07-20 | 苏州华策纺织科技有限公司 | Scraper locking sleeve device of thermal interference type rotary screen printing machine |
| CN109623260A (en) * | 2018-11-13 | 2019-04-16 | 上海五钢设备工程有限公司 | Step locks extrusion cylinder hot-assembling method |
| CN113231657A (en) * | 2021-04-19 | 2021-08-10 | 广州市昊志机电股份有限公司 | Main shaft bearing locking structure, electric main shaft and machine tool |
| CN113634987A (en) * | 2021-07-27 | 2021-11-12 | 国电联合动力技术(连云港)有限公司 | Installation equipment for locking sleeve of high-speed coupler of wind power generator |
| CN114135652A (en) * | 2021-12-16 | 2022-03-04 | 新疆德勤互力工业技术有限公司 | Wear-resisting shaft sleeve structure for sealing speed reducer |
-
2011
- 2011-09-05 CN CN2011203304829U patent/CN202291424U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862224A (en) * | 2012-12-11 | 2014-06-18 | 上海电气集团上海电机厂有限公司 | Disassembling method of nylon ferrule of coupler of medium-sized motor |
| CN104625696A (en) * | 2015-02-13 | 2015-05-20 | 湘潭电机股份有限公司 | Method and tool for interference assembling conical-surface shaft and conical sleeve |
| CN105584201A (en) * | 2016-03-09 | 2016-05-18 | 苏州华策纺织科技有限公司 | Improved cleaning doctor locking sleeve structure of rotary screen printing machine |
| CN105774201A (en) * | 2016-03-09 | 2016-07-20 | 苏州华策纺织科技有限公司 | Scraper locking sleeve device of thermal interference type rotary screen printing machine |
| CN109623260A (en) * | 2018-11-13 | 2019-04-16 | 上海五钢设备工程有限公司 | Step locks extrusion cylinder hot-assembling method |
| CN113231657A (en) * | 2021-04-19 | 2021-08-10 | 广州市昊志机电股份有限公司 | Main shaft bearing locking structure, electric main shaft and machine tool |
| CN113634987A (en) * | 2021-07-27 | 2021-11-12 | 国电联合动力技术(连云港)有限公司 | Installation equipment for locking sleeve of high-speed coupler of wind power generator |
| CN114135652A (en) * | 2021-12-16 | 2022-03-04 | 新疆德勤互力工业技术有限公司 | Wear-resisting shaft sleeve structure for sealing speed reducer |
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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: 20120704 Termination date: 20190905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |