CN1116531C - 绞盘电动机用烧结含油轴承 - Google Patents
绞盘电动机用烧结含油轴承 Download PDFInfo
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- CN1116531C CN1116531C CN00130086A CN00130086A CN1116531C CN 1116531 C CN1116531 C CN 1116531C CN 00130086 A CN00130086 A CN 00130086A CN 00130086 A CN00130086 A CN 00130086A CN 1116531 C CN1116531 C CN 1116531C
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
- F16C17/028—Sliding-contact bearings for exclusively rotary movement for radial load only with fixed wedges to generate hydrodynamic pressure, e.g. multi-lobe bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/1075—Wedges, e.g. ramps or lobes, for generating pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/26—Driving record carriers by members acting directly or indirectly thereon
- G11B15/28—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
Abstract
本发明涉及绞盘电动机用烧结含油轴承,包括强行插入于轴承固定器的内径部上段和下段,而由无多孔面和多孔面相互交替并隔同等距离形成在其内柱面,并且使无多孔面具有91°-120°角度,以最大限度减少设置在轴承固定器上段和下段的轴承之间的无多孔面位置的错落,同时,插入于轴承的轴产生侧压时,可稳定维持油膜强度,与传统的绞盘电动机用烧结含油轴承相比,可提高组装标准,降低组装不合格率,使电动机易于驱动,提高可信度。
Description
技术领域
本发明涉及一种烧结含油轴承,更详细地讲,组装时使各设置在轴承固定器上段和下段的无多孔面位置不会相互错落,同时产生侧压时可维持充分的油膜强度的烧结含油轴承。
背景技术
对于本技术领域的技术人员来说,众所周知,一般用语DVD或VCR的绞盘电动机是保持最佳磁带移动速度,以便在磁头能充分地读到记录在磁带上的信息,或能录音所需信息的磁带正速走行构件。
此绞盘电动机如图1所示,与一般的转轴(spindle)电动机具有相同的结构,但与之不同的特征在于其轴一端突起于上段或下段方向。
在绞盘电动机上安装能支持轴1旋转的轴承2,而此轴承2强行插入在轴承固定器3内径部的上段和下段。
此时,轴1一端安装在转子机壳4上,而转子机壳4则借助附着在转子机壳4上的磁铁5与面向此磁铁5并进行设置的线圈6之间的相互作用得以旋转时,轴1也同时随之旋转,此时轴1的另一端则突出于电动机的外部。
在突出于外部的轴1的另一端附着旋转辊子7,而轴1和旋转棍子7之间夹进磁带8,并借助轴1的旋转,以使磁带8移送至磁头。
具有如此特点的结构中,尤其用于绞盘电动机上的轴承2主要采用滚珠,最近为了满足机器的小型化和精密控制的需求,而逐渐采用烧结含油轴承。
烧结含油轴承如图2所示,其大多以圆筒状构成,将微细粒子的金属粉末放入任意模具上压缩成型后,并加热进行烧结,然后,将其再进行胶料之后,以使油渗透在其内部而制成。
此时,与插入于圆筒状内径的旋转轴之间的公差以微米为单位,尤其,电动机驱动时,由于旋转轴侧压而出现严重摩擦,因此要加工内径面需要很细致的精密性。
如此,烧结含油轴承20和能支持承受内柱面的轴所产生的侧压的无多孔面21与轴旋转时能支持保证充分供应油的多孔面22以相同距离形成。
而且此无多孔面21和多孔面22相互交错,此时的无多孔面21通常以10°-90°角度形成。
附图3和附图6为表示如此传统的烧结含油轴承20平面图,附图3为使形成在内柱面的无多孔面21具有10°角度,并使之隔40°角度共形成在9处,而附图4则使无多孔面21具有60°角度,并之之隔90°角度,共形成在4处。
附图5、如图4所示,形成60°的无多孔面21,而且维持120°的无多孔面21之间间隔,并共形成在3处,而附图6则形成90°角度的无多孔面21,并隔180°间隔共形成在2处。
但,如果设置在轴承的无多孔面21采用小于90°的角度,在轴承固定器上组装轴承20时,将会出现其位置相互错落的现象。即,组装在轴承固定器上段的轴承20的无多孔面21与组装在无多孔面21下段的轴承20的无多孔面21只有形成在相互对应的方向,轴承受侧压时才能牢牢地支撑轴,而如果则采用大于90°的角度,轴承20和无多孔面之间的相互位置错落的可能性更多。
如果上、下段轴承之间20的组装位置相互错落,那么多孔面22则接触在轴一端上,而加深轴承20的磨损,甚至由于多孔面22的润滑力恶化,轴承的刚性则急剧降低,随之轴承的耐久性也会降低。
发明内容
为了解决现有技术中上、下段轴承之间的组装位置相互错落的问题,提出了本发明。本发明提供一种以如下内容为特征的轴承:强行插入于轴承固定器的内径部上段和下段,而无多孔面和多孔面相互交替、并以相同的间隔形成在内柱面上,而且内柱面的无多孔面具有91°-120°角度。
本发明具有如下特征:所述无多孔面以100°角度形成,而所述无多孔面则以180°角度形成。
本发明还具有如下特征:所述无多孔面以100°角度形成,而其外内柱面以多孔面形成。
通过上述设置,可最大限度减少设置在轴承固定器上段和下段的轴承之间的无多孔面位置的错落,同时,插入于轴承的轴产生侧压时,可稳定维持油膜强度,与传统的绞盘电动机用烧结含油轴承相比,可提高组装标准,降低组装不合格率,使电动机易于驱动,提高可信度。
附图说明
本发明的其他目的和特征以及优势通过以下相关附图得以更清楚地描述。
图1为一般绞盘电动机的侧端面图;
图2为传统烧结含油轴承示意图;
图3至图6为表示传统烧结含油轴承实施例的平面图;
图7为表示本发明第一实施例的平面图;
图8为图7的示意图;
图9为表示本发明另一个实施例的平面图;
图10为图9的示意图。
对主要附图符号的说明:
10:烧结含油轴承
11:无多孔面
12:多孔面
具体实施方式
本发明涉及一种烧结含油轴承,尤其对在承受轴侧压的内径面等角形成的无多孔面的整体角度进行扩大,以使接触轴上、下段的无多孔面的位置不会错落,发生侧压时可以维持充分的油膜强度,并增大负荷容量的绞盘电动机用烧结含油轴承。
此发明所涉及的绞盘电动机用烧结含油轴承中,形成在内柱面的无多孔面和多孔面,需以等角并交错形成,这一点是与传统技术大同小异,而不同之处在于本发明所涉及的烧结含油轴承,形成在其内柱面的无多孔面的角度,即对其面积进行扩大。
附图7或附图8为表示本发明所涉及的第一实施例,在本实施例所涉及的轴承10中,使无多孔面11以大于内柱面的90°的100°角度形成,而此无多孔面11将设置在内柱面对面的2处。
此时,将形成在烧结含油轴承内柱面的无多孔面11,以大于90°的角度设置在2处,所以一对无多孔面11之间的多孔面12角度各小于90°。
换句话说,如对无多孔面11的角度控制在最小幅度91°以上,此时的多孔面12将小于最大89°角度,而如扩大无多孔面11角度,与此相反,多孔面12的角度将逐渐变小。
一方面,如果过于扩大无多孔面11的角度,将阻碍相对变小的多孔面12中的油的流出入,即将恶化润滑作用,因此无多孔面11应参照实施例,采用100°角度最佳。
附图9或附图10为本发明所涉及的第2实施例,本实施例中,形成在烧结含油轴承内柱面的无多孔面11只设置在1处。
即,在烧结含油轴承一侧的内柱面上将设置具有100°角度的无多孔面11,而在其余的内柱面上均设置多孔面12。
此时,多孔面12将设置在除1处以外的其余的内柱面上,润滑性比从前有大幅度提高。
此外,无多孔面11只设置一处时,更有余地扩大无多孔面11角度,而且最大能扩大120°为止。
如上所述,本发明的目的在于:用于绞盘电动机的烧结含油轴承中,对集中承受轴侧压的无多孔面11的角度将采用至少大于90°以上角度,以最大限度缩小各设置在轴承固定器上、下段的轴承10之间的无多孔面11的位置误差范围,并增大负荷容量。
即,对轴承10的无多孔面11,至少采用大于90°的角度,如本发明第一实施例所示,轴承10的无多孔面11设置在对应方向2处时,无多孔面11的角度大于无多孔面11之间的多孔面12的角度,以便更容易识别。
而且如本发明第2实施例所述,只设置1处无多孔面,容易把握无多孔面11的位置,组装轴承10时最大限度降低位置的误差率。
因此,按照本发明组装轴承10时,如相当于第1实施例结构,将上段和下段的轴承10位于无多孔面11同一方向,并且使无多孔面位于相互对应方向的轴承固定器上,以完成组装在正确位置。
而且按本发明所述,如只设置1个或2个形成在轴承10的无多孔面11,烧结制成轴承10之后进行面加工时的作业量与设置多数无多孔面11时相比减少,以便提高工作效率。
尤其,在本发明中,只设置一个具有至少大于90°角度的无多孔面11时,多孔面12的整体面积比无多孔面11大幅度扩大,以提供更顺畅的润滑性。
综上所述,本发明所涉及的烧结含油轴承可以扩大无多孔面11的形成角度,以最大限度降低各设置在轴承固定器上段和下段的轴承之间无多孔面11位置的错落,与此同时,插入轴承在产生轴的侧压时,稳定维持油膜强度,以保证电动机驱动更畅通,更有效提高对产品的可信度。
Claims (3)
1.一种绞盘电动机用烧结含油轴承,其特征在于:强行插入于轴承固定器内径部的上段和下段,而由无多孔面和多孔面相互交替并以相同间隔形成在其内柱面上,而且内圆柱面的无多孔面以91°-120°角度形成。
2.根据权利要求1所述的绞盘电动机用烧结含油轴承,其特征在于:无多孔面以100°角度形成,而所述无多孔面之间的间隔保持180°。
3.根据权利要求1所述的绞盘电动机用烧结含油轴承,其特征在于:无多孔面以100°角度形成,而其余内柱面则均以多孔面形成。
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Application Number | Priority Date | Filing Date | Title |
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KR10-2000-0011939A KR100396494B1 (ko) | 2000-03-10 | 2000-03-10 | 캡스턴 모터용 소결 함유 베어링 |
KR11939/2000 | 2000-03-10 |
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CN1313475A CN1313475A (zh) | 2001-09-19 |
CN1116531C true CN1116531C (zh) | 2003-07-30 |
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CN00130086A Expired - Fee Related CN1116531C (zh) | 2000-03-10 | 2000-10-26 | 绞盘电动机用烧结含油轴承 |
Country Status (4)
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JP (1) | JP2001263354A (zh) |
KR (1) | KR100396494B1 (zh) |
CN (1) | CN1116531C (zh) |
NL (1) | NL1016508C2 (zh) |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN101358622A (zh) * | 2007-08-03 | 2009-02-04 | 富准精密工业(深圳)有限公司 | 含油轴承及采用该含油轴承的散热风扇 |
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2000
- 2000-03-10 KR KR10-2000-0011939A patent/KR100396494B1/ko not_active IP Right Cessation
- 2000-10-26 CN CN00130086A patent/CN1116531C/zh not_active Expired - Fee Related
- 2000-10-31 NL NL1016508A patent/NL1016508C2/nl not_active IP Right Cessation
- 2000-11-22 JP JP2000356548A patent/JP2001263354A/ja active Pending
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Publication number | Publication date |
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NL1016508C2 (nl) | 2001-09-11 |
JP2001263354A (ja) | 2001-09-26 |
KR100396494B1 (ko) | 2003-09-02 |
CN1313475A (zh) | 2001-09-19 |
KR20010088013A (ko) | 2001-09-26 |
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