CN1195081A - 主冷却液泵的泵轴的轴承 - Google Patents

主冷却液泵的泵轴的轴承 Download PDF

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Publication number
CN1195081A
CN1195081A CN98104142A CN98104142A CN1195081A CN 1195081 A CN1195081 A CN 1195081A CN 98104142 A CN98104142 A CN 98104142A CN 98104142 A CN98104142 A CN 98104142A CN 1195081 A CN1195081 A CN 1195081A
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China
Prior art keywords
bearing
supporting ring
pump
diffuser
bearing unit
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CN98104142A
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CN1095045C (zh
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F·斯塔勒尔
D·弗拉瑟尔
M·泽亨纳
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Andritz Patentverwaltungs GmbH
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Andritz Patentverwaltungs GmbH
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Publication of CN1195081A publication Critical patent/CN1195081A/zh
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/047—Bearings hydrostatic; hydrodynamic
    • 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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/02—Sliding-contact bearings
    • F16C25/04—Sliding-contact bearings self-adjusting

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Support Of The Bearing (AREA)

Abstract

本发明涉及用于主冷却液泵的泵轴的轴承组件,其包括一轴承,一轴承壳体和一支承环,其特征在于,鉴于热膨胀程度的差异,所述支承环在中部区域适当地软,并在此区域可以有几道纵向钩槽。

Description

主冷却液泵的泵轴的轴承
本发明涉及用于主冷却液泵的泵轴的轴承组件，该轴承组件包括一轴承、一轴承壳体和一支承环。
对于主冷却液泵的运行而言，在大多数变化的操作条件下，下导向轴承至少能近似保持中心对准是很重要的。由于相对较冷的密封介质流过轴承，因此在正常操作状态下有很大的温度梯度。为连接由于泵扩散器较高的热膨胀而产生的与轴承壳体的径向间隙，采用对中心件。这些对中心件必须以很复杂的方式固定在轴承壳体和扩散器上，以实现较长的使用期限，并且这些对中心件必须有低磨损的覆层，一般包含钴，而钴在反应器中是不期望出现的。
本发明的目的是减少零件的数目，并且完全不需要覆层。
根据本发明，鉴于热膨胀程度的不同，支承环中部区域必须适当地软，并可以设一些沟槽。以此设计可防止产生热膨胀程度的差异，并由上、下凸缘维持轴的中心对准。
本发明又一改进之处的特征在于，支承环在上、下端部有钩状凸缘，以这些钩状凸缘可实现支承环和扩散器和/或轴承之间的联接(连接)，这是由于凸缘追随扩散器和轴承的相应的热膨胀，产生较高的阻力防止轴承由于径向力的产生而沿各方向的位移。
本发明的一种优选设计的特征在于，所述轴承壳体装入支承环的下钩状凸缘中。这可确保轴承良好地固定和连接。
本发明的有利的进步之处的特征在于，所述支承环以其上钩状凸缘装入扩散器中。这可实现扩散器和轴承之间的可靠连接，并且凸缘也可旋入扩散器中。
下面以举例方式参照附图来描述本发明，其中，图1是根据本领域现有技术，通过主冷却液泵中泵轴的轴承的截面图；图2是根据本发明的轴承组件；图3是根据本发明通过支承环的截面图。
图1示出通过主冷却液泵在下导向轴承3处的轴承组件和泵轴1的截面。在轴1上安装一保护性轴套2。由保护性轴套2和轴承3形成轴承间隙，所述轴承3一般是石墨轴承。轴承3压入轴承壳体4内。冷却液体以近似100℃的温度流过轴承，而扩散器5的外侧，温度近似为290℃。这种温度上的差别使得不同的部件进行不同的热膨胀。因此扩散器5的热膨胀程度高于轴承壳体4的热膨胀程度，由此在这两个部件之间产生较大的径向间隙。此径向间隙由导向键形式的对中心件6桥接。所述对中心件6嵌入轴承壳体4的沟槽内，此外还用螺纹件8和销连接。一般在轴承壳体4的圆周周围设置8个对中心件，其在支承环9的轴向沟槽内径向和轴向滑动。借助这些具有抗磨损覆层的滑动面，将在轴承上产生的径向力传递至固定的泵部件上，具体而言是支承环9上，然后传至扩散器5上，支承环9用螺纹件10固定在扩散器5上。必须以高精确度安装对中心件6，这是因为开始时在对中心件6和支承环9之间有太大的间隙会引起滑动面的快速磨损。目前用于对中心件6的覆层包含钴，这在反应器的初级电路中是不期望出现的。
图2示出一类似的、通过根据本发明的具轴承组件的泵轴1的截面图。目前泵轴1有一保护性轴套2，轴承3在其上运行。轴承3压入轴承壳体4内。轴承壳体4压入支承环11的钩状凸缘13内。整个轴承组件利用支承环11的上钩状凸缘14放在扩散器15内，并用螺纹件15固定。所述支承环11沿其圆周在一些点处可以有纵向沟槽12。两个凸缘13、14进行不同程度的热膨胀。通过沟槽12，支承环11能以简单方式跟随扩散器5的热膨胀，而不会出现轴承3的不对准。并且支承环11一般是组长均匀的，这样泵轴1也经常是中心对准的。在各元件之间无相对运动并没有更多的磨损。因此不再需用钴。单个部件的数目从现有技术状态相对减少了，轴承结构显著简化，并维持中心对准。
通3示出通过图2III-III位置处支承环11的截面。此处清楚地看出有四条纵向沟槽12。纵自沟槽的数目能适应轴的圆周，或适应操作条件。如操作条件允许，也可以完全不需用纵自沟槽12。
本发明不限于附图和说明书中包含的例子。例如，支承环的形状可以根据扩散器的水力外周轮廓进行或多或少的变化。并且轴承壳体可以固定在顶部或中心。

Claims (5)

1.用于主冷却液泵的泵轴的轴承组件，其包括一轴承，一轴承壳体和一支承环，其特征在于，鉴于热膨胀程度的差异，所述支承环(11)在中部区域适当地软。
2.根据权利要求1的轴承组件，其特征在于，所述支承环(11)在其中部区域有几道纵向沟槽(12)。
3.根据权利要求1或2的轴承组件，其特征在于，所述支承环(11)在其上端和下端有钩状凸缘(13，14)。
4.根据权利要求3的轴承组件，其特征在于，所述轴承壳体(4)装入支承环(11)的下钩状凸缘(13)内。
5.根据权利要求3或4的轴承组件，其特征在于，所述支承环(11)以其上钩状凸缘(14)放入扩散器(5)内。
CN98104142A 1997-03-06 1998-03-05 主冷却液泵的泵轴的轴承 Expired - Fee Related CN1095045C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0038197A AT405084B (de) 1997-03-06 1997-03-06 Lagerung der pumpenwelle einer hauptkühlmittelpumpe
AUA381/97 1997-03-06

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CN1195081A true CN1195081A (zh) 1998-10-07
CN1095045C CN1095045C (zh) 2002-11-27

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JP (1) JP4071346B2 (zh)
KR (1) KR100602224B1 (zh)
CN (1) CN1095045C (zh)
AT (1) AT405084B (zh)
DE (1) DE19806546C2 (zh)
FR (1) FR2761118B1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100412394C (zh) * 2003-02-21 2008-08-20 Tdw特拉华有限公司 承受热膨胀的滑动轴承

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FR1198623A (fr) * 1957-01-30 1959-12-08 Westinghouse Electric Corp Palier et sa monture
FR1343721A (fr) * 1962-10-11 1963-11-22 Commissariat Energie Atomique Palier à autocompensation en température
GB1205749A (en) * 1966-11-29 1970-09-16 Silentbloc Pivotal joint
US3542441A (en) * 1968-03-28 1970-11-24 Westinghouse Electric Corp Controlled clearance self-aligning bearing
DE2259832C2 (de) * 1972-12-07 1974-02-28 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Gekühltes Radiallager innerhalb eines Tragrohres
GB2004956A (en) * 1977-09-26 1979-04-11 Spica Spa Clearance takeup floating bush
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SU1229470A1 (ru) * 1984-03-23 1986-05-07 Предприятие П/Я А-1614 Подшипник скольжени
DE8706954U1 (de) * 1987-05-14 1987-07-02 Hermetic-Pumpen Gmbh, 7803 Gundelfingen Gleitlager für Pumpen
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FR2660375B1 (fr) * 1990-03-30 1995-04-21 Pecquet Tesson Soc Ind Pompe de circulation d'un liquide caloporteur en circuit ferme.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100412394C (zh) * 2003-02-21 2008-08-20 Tdw特拉华有限公司 承受热膨胀的滑动轴承

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FR2761118A1 (fr) 1998-09-25
JP4071346B2 (ja) 2008-04-02
AT405084B (de) 1999-05-25
KR19980079922A (ko) 1998-11-25
DE19806546A1 (de) 1998-12-03
KR100602224B1 (ko) 2006-10-04
FR2761118B1 (fr) 2002-01-11
ATA38197A (de) 1998-09-15
CN1095045C (zh) 2002-11-27
JPH10246227A (ja) 1998-09-14
DE19806546C2 (de) 1999-11-04

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Granted publication date: 20021127

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