CN1846340A - 具有偏心部的马达以及使用该马达的泵装置 - Google Patents
具有偏心部的马达以及使用该马达的泵装置 Download PDFInfo
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- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4031—Pump units characterised by their construction or mounting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
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- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
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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
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
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- H—ELECTRICITY
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
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- H02K7/08—Structural association with bearings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
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Abstract
本发明中,旋转轴(30)本身没有偏心,而使包括球轴承(50)的整体具有偏心结构。因此,取代对旋转轴(30)侧进行切削加工,在笔直的旋转轴(30)的轴部分上结合偏心的球轴承(50)而得到偏心部。即,偏心部包括:具有与旋转轴(30)的轴线相同的轴线的轴部分;和结合在该轴部分上的偏心球轴承(50)。作为偏心球轴承,优选地地在直径小的内侧偏心。该偏心球轴承(50)包括相对于旋转轴(30)的轴线偏心的内圈(52)、包围该内圈(52)的外侧的外圈(54)、以及被支承在这些外圈(54)和内圈(52)之间的球(55)。
Description
技术领域
本发明涉及具有偏心部的马达,其包括:具有轴线且支承电枢以及整流子的旋转轴,和在该旋转轴上相对于轴线偏心地构成的偏心部,该偏心部成为用于驱动外部设备、例如汽车的液压制动系统中的泵的输出部。另外,本发明还涉及使用该马达的泵装置。
背景技术
因为这种马达或泵装置搭载于汽车上,所以追求其小型化以及振动和工作噪声的减小。
对马达的偏心部进行研究发现,迄今为止,通过加工旋转轴而在其一部上构成偏心的轴部,在该偏心的轴部的外周上结合着滚针轴承或者球轴承。滚针轴承与球轴承相比可以承受高负荷,但是难以实现马达的小型化和轻量化、或振动和工作噪声的降低。例如,在专利文献1和专利文献2中,分别示出使用滚针轴承和球轴承的马达。
专利文献1:特开平11-252854号公报
专利文献2:特开2000-278904号公报
本发明着眼于使通过偏心部驱动的泵等小径化,并且其负荷变低,反复研究如何有效使用适于较低负荷的球轴承。
其结果发现,迄今为止,为了得到偏心部,都采用对旋转轴的一部分进行切削加工从而在此处构成偏心的轴部这一设计思想。在这样的轴的切削加工中,必然会导致高成本。因此,考虑一种全新的方法:不使旋转轴自身偏心,而使含有球轴承的整体具有偏心构造。
发明内容
在本发明中,位于旋转轴上的偏心部的构成如下:即,取代对旋转轴侧进行切削加工,利用在笔直的旋转轴的一部分即轴部分上直接结合偏心的球轴承而获得偏心部。进一步换言之,偏心部包括:具有与旋转轴的轴线相同的轴线的轴部分(旋转轴的一部分);和结合在该轴部分上的偏心球轴承。作为偏心球轴承,优选地为直径小的内侧偏心。就是说,考虑到零部件的加工及强度方面,与使外侧偏心的情况相比,内侧偏心更有利。该偏心球轴承包括:相对于旋转轴的轴线偏心的内圈、位于该内圈外侧并具有与上述轴线相同的轴线的外圈、和支承在这些内圈和外圈之间的球。
在具有这样偏心部的旋转轴上,以含有线圈卷线部的电枢、电枢通电用的整流子、成为输出部的偏心部的顺序配置。偏心部对例如汽车的液压制动系统(不仅仅是通常的胎面花纹控制,还有牵引力控制,进而还有用于安全行驶和防止追尾等的自动制动)所使用的泵进行驱动。因此,在通常情况下,电枢和整流子收纳在马达壳体中,马达壳体安装在液压制动系统的控制单元的一侧。
球轴承与滚针轴承相比结构比较简单(例如,在滚针轴承中必须有支承侧部的阻挡衬套,而球轴承则不需要)、球轴承的摩擦相对较小,可以降低马达电流,从结构上来说,旋转轴方向的长度变短并实现轻量化(特别是使偏心部的质量轻量化),能够降低振动和噪声。
如本发明所述,在将球轴承结合在笔直的旋转轴的一部分即轴部分上的情况下,如果从耐久性等方面考虑作为产品的实效,则需要降低马达的输出。根据实验,优选地,马达的输出应控制在150W以下、或者相对于这样的输出应用本发明。针对这一点,作为通过偏心部驱动的泵等的外部设备来说需要选择低负荷的小径泵等设备、或者使马达自身小型化。
另外,在本发明用作泵装置的情况下,该泵装置构成为以上述特定的马达作为驱动源、且柱塞抵接在偏心球轴承的外周(即,偏心球轴承的外圈)上。泵装置伴着柱塞的直线往复运动,反复进行吸入、排出工作液的动作。柱塞通常成对设置,互相间隔180°地配置在偏心球轴承的圆周方向上。
附图说明
图1表示本发明的马达的一个实施例,是表示其外形的主视图。
图2是图1的马达的截面结构图。
图3是表示偏心球轴承的一例的侧视图。
图4是沿图3的4-4线的剖视图。
附图标记说明
10 马达
12 马达壳体
30 旋转轴
50 偏心球轴承
52 内圈
54 外圈
55 球
70 电枢
80 整流子
100 柱塞泵
具体实施方式
本发明基本上是具有特定的偏心部的马达,但本领域技术人员能够理解为将马达作为驱动源的泵装置。
参照图1和图2,DC马达10具有划分圆柱形状的内部空间的马达壳体12。该马达壳体12的高度与其直径相比大概是一半左右的大小。马达壳体12包括截面コ字形的壳体主体121和堵住壳体主体121一端的端板122。在端板122的中央部具有向外扩展的凸缘部分122f。另外,在壳体主体121的中央部分还具有由压制加工形成的承接部121r。为了使马达10小型化,承接部121r与壳体主体121的其它部分高度相同(即、处于同一平面)。这些承接部121r和凸缘部分122f的内部成为支承第1、第2轴承21、22的部分。这两个轴承21,22与马达壳体12成为一体,由此可旋转地支承马达10的旋转轴30。旋转轴30位于马达壳体12的中心部,一端支承在壳体主体121的承接部位121r中的第1轴承21上,其相反侧的中间部分支承在第2轴承22上,比其更靠前的部分贯穿端板122并伸出到马达壳体12的外侧。
在此,旋转轴30,从支承于第1轴承21侧的第1端部31起到伸出于外侧的第2端部32为止,为笔直的圆棒。即,旋转轴30,从其第1端部31到第2端部32的全长都具有相同轴线。在本发明中,在整体笔直的旋转轴30上,使偏心球轴承50结合并支承在位于马达壳体12的外侧部分的轴部分上。
图3和图4详解偏心球轴承50。偏心球轴承50包括偏心的内圈52、包围内圈52外侧的外圈54、以及位于内圈和外圈之间的多个球55。各个球55在内圈52和外圈54之间沿圆周方向排列,两侧的保持器56对球55进行保持。因此,偏心球轴承50的基本构成要素本身与通常的球轴承相同。但是,外圈54的内周侧的圆54i与外周侧的圆54o的中心相同,与之相对,内圈52的内周侧的圆52i与外周侧的圆52o的中心之间偏心距离d。该偏心距离(即,偏心量)为例如小于1mm。因此,若含有该内圈52的偏心球轴承50以紧配合状态结合在旋转轴的轴部分上,则随着旋转轴30的旋转,包含偏心球轴承50的偏心部,在相对于旋转轴30的轴线正交的方向上以2d大小的行程进行往返直线运动。可利用该运动来驱动柱塞泵100。柱塞泵100自身就像例如特开平7-224755号公报所示那样,柱塞抵接在偏心球轴承50的外周上,与偏心球轴承50的往复直线运动相对应地,柱塞自身进行相同的往复直线运动,从而产生泵作用。
观察马达壳体12的内部(参照图2),首先,在截面コ字形的壳体主体121的内周壁面上具有多个磁铁60。这些磁铁60与作为磁轭起作用的壳体主体121相配合地产生磁场。电枢70位于由磁铁60围成的内侧空间中。电枢70具有层叠的磁芯和卷绕在其上的线圈卷线部,其自身一体地支承在旋转轴30上并和旋转轴30一起旋转。若电流流过电枢70的线圈卷线部,则利用由磁铁60形成的磁场的作用,在电枢70上作用规定的力,从而生成马达10的旋转力。
为了对旋转的电枢70从外部进行通电,在与电枢70相邻的部分上具有整流子(换向器)80。整流子80一体地支承在旋转轴30上、支承在电枢70和第2轴承22之间。整流子80包含由树脂成型品形成的圆筒形的绝缘环82、和组装在绝缘环82外周的多个整流子片84。绝缘环82由电绝缘性的树脂材料形成,另外,多个整流子片84由铜等导电性金属材料形成。在整流子片84的一端的弯曲的提升器84r,是钩住各整流子片84和电枢70的各线圈卷线部的线圈端部的部分。整流子80与通电用的电刷连接到在外部电路上。为了通电,从马达壳体12的下部延伸的电缆90用于连接电刷和外部电路。
在使用偏心球轴承50的该马达10中,为了实现马达10小型化、特别是旋转轴30方向长度的降低,使电枢70成为中心部凹陷的构成,第1轴承21和整流子80的各一部分进入与其相邻的该凹陷的部分中。
Claims (8)
1.一种具有偏心部的马达,其包括:具有轴线且支承电枢以及整流子的旋转轴、和在该旋转轴上相对于上述轴线偏心地构成的偏心部,该偏心部成为用于驱动外部设备的输出部,其特征在于,
上述偏心部包括:具有与上述轴线相同的轴线的上述旋转轴的轴部分;和结合在该旋转轴的轴部分上、具有相对于上述旋转轴及其轴部分的轴线偏心的其他轴线的偏心球轴承。
2.如权利要求1所述的马达,其特征在于,上述偏心球轴承包括:相对于上述旋转轴及其轴部分的轴线偏心的内圈、位于该内圈外侧并具有与上述旋转轴及其轴部分的轴线相同的轴线的外圈、和支承在这些内圈和外圈之间的球。
3.如权利要求1或2所述的马达,其特征在于,上述偏心球轴承以紧配合状态结合在上述旋转轴的一部分上。
4.如权利要求1或2所述的马达,其特征在于,在上述轴线上以上述电枢、上述整流子、上述偏心部的顺序配置。
5.如权利要求1或2所述的马达,其特征在于,上述马达具有150w以下的输出。
6.一种泵装置,包括:具有轴线且支承电枢和整流子的旋转轴、在旋转轴上相对于上述轴线偏心地构成的偏心部、柱塞抵接在该偏心部上且利用偏心部的偏心运动进行驱动的柱塞泵,其特征在于,上述偏心部包括:具有与上述轴线相同的轴线的上述旋转轴的轴部分;和结合在该旋转轴的轴部分上、具有相对于上述旋转轴及其轴部分的轴线偏心的其他轴线的偏心球轴承。
7.如权利要求6所述的泵装置,其特征在于,上述偏心球轴承包括:相对于上述旋转轴及其轴部分的轴线偏心的内圈、位于该内圈外侧并具有与上述旋转轴及其轴部分的轴线相同的轴线的外圈、和支承在这些内圈和外圈之间的球。
8.如权利要求6或7所述的泵装置,其特征在于,上述偏心球轴承以紧配合状态结合在上述旋转轴的一部分上。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP310446/2003 | 2003-09-02 | ||
JP2003310446 | 2003-09-02 |
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CN1846340A true CN1846340A (zh) | 2006-10-11 |
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CNA2004800251381A Pending CN1846340A (zh) | 2003-09-02 | 2004-09-02 | 具有偏心部的马达以及使用该马达的泵装置 |
Country Status (6)
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US (1) | US20070020125A1 (zh) |
EP (1) | EP1646129A4 (zh) |
JP (1) | JPWO2005025033A1 (zh) |
KR (1) | KR100705882B1 (zh) |
CN (1) | CN1846340A (zh) |
WO (1) | WO2005025033A1 (zh) |
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DE102006005906A1 (de) * | 2005-08-23 | 2007-08-30 | Keiper Gmbh & Co.Kg | Getriebestufe |
JP2008208943A (ja) * | 2007-02-27 | 2008-09-11 | Jtekt Corp | ターボ分子ポンプおよびタッチダウン軸受 |
CN106787418B (zh) * | 2015-11-23 | 2019-12-10 | 德昌电机(深圳)有限公司 | 驱动装置及应用该驱动装置的泵机 |
KR102538580B1 (ko) * | 2016-01-25 | 2023-05-31 | 엘지이노텍 주식회사 | 모터, 브레이크 시스템 및 이를 포함하는 차량 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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US1162512A (en) * | 1915-01-21 | 1915-11-30 | Faustin Prinz | Eccentric ball-bearing reciprocating device. |
US4831277A (en) * | 1987-08-11 | 1989-05-16 | Christopher Nicholas S | Remote power system |
JPH0559029U (ja) * | 1992-01-16 | 1993-08-03 | 日本精工株式会社 | プランジャ等の往復駆動装置 |
US5437220A (en) * | 1994-05-24 | 1995-08-01 | Cheng; Chi | Ball bearing piston |
JPH08126248A (ja) * | 1994-10-20 | 1996-05-17 | Koyo Seiko Co Ltd | 油圧ポンプ用電動モータ |
DE4445362A1 (de) * | 1994-12-20 | 1996-06-27 | Bosch Gmbh Robert | Kolbenpumpe |
JPH0958438A (ja) * | 1995-08-21 | 1997-03-04 | Akebono Brake Ind Co Ltd | 電動モータとポンプとを備えた油圧ユニット |
DE19642133A1 (de) * | 1996-10-12 | 1998-04-16 | Bosch Gmbh Robert | Motor-Pumpen-Einrichtung |
DE19709777A1 (de) * | 1997-03-10 | 1998-09-17 | Itt Mfg Enterprises Inc | Motor-Pumpenaggregat |
JPH11103559A (ja) * | 1997-09-26 | 1999-04-13 | Aisin Seiki Co Ltd | 駆動装置 |
DE19928480A1 (de) * | 1999-06-22 | 2000-12-28 | Bosch Gmbh Robert | Nadellager und Pumpeneinheit mit einem Nadellager |
JP2001309608A (ja) * | 2000-04-27 | 2001-11-02 | Asmo Co Ltd | モータ |
DE10063757B4 (de) * | 2000-12-21 | 2010-04-01 | Robert Bosch Gmbh | Pumpenaggregat für eine hydraulische Fahrzeugbremsanlage |
US7270591B2 (en) * | 2004-04-13 | 2007-09-18 | Black & Decker Inc. | Electric sander and motor control therefor |
-
2004
- 2004-09-02 JP JP2005513666A patent/JPWO2005025033A1/ja active Pending
- 2004-09-02 KR KR1020067004276A patent/KR100705882B1/ko not_active IP Right Cessation
- 2004-09-02 CN CNA2004800251381A patent/CN1846340A/zh active Pending
- 2004-09-02 WO PCT/JP2004/012740 patent/WO2005025033A1/ja active Application Filing
- 2004-09-02 US US10/569,712 patent/US20070020125A1/en not_active Abandoned
- 2004-09-02 EP EP04772694A patent/EP1646129A4/en not_active Withdrawn
Also Published As
Publication number | Publication date |
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EP1646129A4 (en) | 2009-07-01 |
KR100705882B1 (ko) | 2007-04-09 |
JPWO2005025033A1 (ja) | 2007-11-08 |
US20070020125A1 (en) | 2007-01-25 |
EP1646129A1 (en) | 2006-04-12 |
WO2005025033A1 (ja) | 2005-03-17 |
KR20060064062A (ko) | 2006-06-12 |
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