CN102042337A - 一种自润滑滑动轴承 - Google Patents
一种自润滑滑动轴承 Download PDFInfo
- Publication number
- CN102042337A CN102042337A CN2010105954605A CN201010595460A CN102042337A CN 102042337 A CN102042337 A CN 102042337A CN 2010105954605 A CN2010105954605 A CN 2010105954605A CN 201010595460 A CN201010595460 A CN 201010595460A CN 102042337 A CN102042337 A CN 102042337A
- Authority
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- Prior art keywords
- bearing
- bearing bush
- self
- dust
- lubricating
- 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.)
- Pending
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- 238000007789 sealing Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 10
- 238000005296 abrasive Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 229910000640 Fe alloy Inorganic materials 0.000 abstract description 3
- 230000001050 lubricating Effects 0.000 abstract 1
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- -1 Cuprum alloy Chemical class 0.000 description 1
- 210000002356 Skeleton Anatomy 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007866 anti-wear additive Substances 0.000 description 1
- 239000003831 antifriction material Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound 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[Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
Abstract
一种自润滑滑动轴承，包括轴承座、轴瓦及外轴套，所述轴承座内腔中嵌套一环形轴瓦，所述轴瓦内表面设置若干均匀分布且垂直于内表面的通孔，所述轴瓦另一侧的轴承座内壁上开设一圈环形的密封圈定位槽，位于外轴套位置处转轴的轴颈部位装配对磨套筒并与轴颈过盈配合。本发明有益效果为：其轴瓦部分采用Ni-Cr-W-MoS2-石墨-Fe合金轴瓦组成，轴瓦内表面设置若干均匀分布的垂直于表面的通孔，从而既可容纳储存磨屑、粉尘，还可储存润滑油、脂，以便于低速、低温时的启动，降低摩擦系数；通过在轴承端部设置密封结构，可防止粉尘等引起的磨粒磨损；可应用于冶金的重型机械设备在处于高温、低速、重载的运行状态，轴承润滑性能较佳。
Description
一种自润滑滑动轴承技术领域
[0001] 本发明涉及粉末冶金烧结工艺技术，尤其涉及一种自润滑滑动轴承。 背景技术
[0002] 一般情况下，冶金企业轧钢、冶炼设备的机械传动中轴承工作在高温、冲击、粉尘 等恶劣环境中，润滑油脂在高温环境下均容易蒸发而使磨损严重。在高温、高速负载下运转 的无油自润滑轴承、密封环等零部件材料要求强度好、自润滑性能好、耐腐蚀、减震降噪、跑 合性能好，而一般的粉末冶金烧结的含油轴瓦因强度低而难以满足以上要求。例如，某类滑 动轴承，在铝基合金减摩材料基体的内孔表面涂覆铅、锡、铜合金减摩层，高温重载下会很 快被磨损压裂而失效；另外在使用过程中，一旦减摩层遭到破坏，会造成钢背与轴颈的直接 接触，导致轴颈配合表面的严重损坏。此外，很多自润滑滑动轴承采用轴瓦骨架上填充由固 体润滑剂、液相润滑油和耐磨添加剂构成的固液复合润滑填充棒，其承载能力高、润滑性能 好，但不适合高温条件，轴承长时间受高温烘烤、润滑填充棒易干涩、碳化失效。发明内容
[0003] 针对以上缺陷，本发明的目的是提供一种耐高温、摩擦系数低、耐磨损性能好、可 延长使用寿命、有利于自润滑的自润滑滑动轴承，以解决现有技术的诸多不足。
[0004] 为实现上述目的，本发明通过以下技术方案实现：
[0005] 一种自润滑滑动轴承，包括轴承座、轴瓦及外轴套，所述轴承座内腔中嵌套一环 形轴瓦，所述轴瓦内表面设置若干均勻分布且垂直于内表面的通孔，该轴瓦外侧的轴承座 端部安装外轴套。所述轴瓦另一侧的轴承座内壁上开设一圈环形的密封圈定位槽用于设置 密封结构，位于外轴套位置处转轴的轴颈部位装配对磨套筒并与轴颈过盈配合。
[0006] 本发明所述的自润滑滑动轴承的有益效果为：其轴瓦部分采用Ni-Cr_W-MoS2-石 墨-Fe合金轴瓦组成，轴瓦内表面设置若干均勻分布的垂直于表面的通孔，从而既可容纳 储存磨屑、粉尘，还可储存润滑油、脂，以便于低速、低温时的启动，降低摩擦系数；通过在轴 承端部设置密封结构，可防止粉尘等引起的磨粒磨损，也对轴系的定位起到关键作用；可应 用于冶金的重型机械设备在处于高温、低速、重载的运行状态，轴承的润滑性能较佳。附图说明
[0007] 下面根据实施例和附图对本发明作进一步详细说明。
[0008] 图1是本发明实施例所述自润滑滑动轴承的立体结构示意图；
[0009] 图2是本发明实施例所述自润滑滑动轴承的应用状态示意图；
[0010] 图3是本发明实施例所述自润滑滑动轴承的轴瓦部分示意图。
[0011] 图中：
[0012] 1、轴承座；2、轴瓦；3、外轴套；4、轴孔；5、通孔；6、密封圈定位槽。具体实施方式
[0013] 如图1-3所示，本发明所述的自润滑滑动轴承，包括轴承座1、轴瓦2及外轴套3， 所述轴承座1内腔中嵌套一环形轴瓦2，该轴瓦2部分采用Ni-Cr-W-MoS2-石墨-Fe合金 轴瓦组成，所述轴瓦2内表面设置若干均勻分布且垂直于内表面的通孔5，从而既可容纳储 存磨屑、粉尘，还可储存润滑油、脂，以便于低速、低温时的启动，降低摩擦系数；所述轴瓦 2外侧的轴承座1端部安装带有轴孔4的外轴套3，此轴瓦2另一侧的轴承座1内壁上开设 一圈环形的密封圈定位槽6并且通过在轴承端部设置密封结构，可防止粉尘等引起的磨粒 磨损，也对轴系的定位起到关键作用。此外，位于转轴与外轴套3之间的轴颈部位装配由轴 承钢组成的对磨套筒并与轴颈过盈配合。
Claims (3)
1. 一种自润滑滑动轴承，包括轴承座（1)、轴瓦（¾及外轴套（3)，其特征在于：所述轴 承座（1)内腔中嵌套一环形轴瓦O)，所述轴瓦（¾内表面设置若干均勻分布且垂直于内表 面的通孔（5)，该轴瓦（2)外侧的轴承座（1)端部安装外轴套（3)。
2.根据权利要求1所述的自润滑滑动轴承，其特征在于：所述轴瓦O)另一侧的轴承 座（1)内壁上开设一圈环形的密封圈定位槽（6)用于设置密封结构。
3.根据权利要求1所述的自润滑滑动轴承，其特征在于：位于外轴套（3)位置处转轴 的轴颈部位装配对磨套筒并与轴颈过盈配合。
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