CN202082265U - 密封式油润滑传动轴总成 - Google Patents
密封式油润滑传动轴总成 Download PDFInfo
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Abstract
一种密封式油润滑传动轴总成，包括主轴、壳体、上径向轴承、下径向轴承、上内套、下内套、推力轴承，所述壳体包括上壳体、下壳体，其特征是：上壳体与上内套之间设置上储油室，上径向轴承的顶端连通该上储油室，上储油室内设有上滑动塞，且上滑动塞与上壳体内表面、上内套外表面之间密封；下壳体与所述下内套之间设置下储油室，下径向轴承的底端连通下储油室，下储油室内设有下滑动塞，且下滑动塞与下壳体内表面、下内套外表面之间密封；所述壳体上设有注油孔。其上、下滑动塞将推力轴承和径向轴承密封在中间，滑动塞之间充满液压油用来润滑与降温。这样泥沙中的颗粒无法与传动轴中各元件接触，减少磨损，大大的提高了传动轴的寿命。
Description
技术领域
本实用新型涉及石油钻采机械中的螺杆钻具技术领域。
背景技术
现有螺杆钻具的结构是开式结构，推力轴承和径向轴承的润滑、冷却都是通过从泥浆泵泵入钻杆中的泥浆流经推力轴承、径向轴承之间的间隙来达到的。虽然泥浆经过过滤，但泥浆中仍然含有微小的固相体颗粒，它们会造成推力轴承和径向轴承的加速磨损，使传动轴过早的就被破坏了，从而缩短了钻具的使用寿命，造成井下事故。
实用新型内容
为了克服上述现有技术存在的缺点，本实用新型的目的在于提供一种密封式油润滑传动轴总成，它可实现传动轴总成轴承油润滑，减少磨损，大大的提高传动轴的寿命。
为解决上述问题，本实用新型采用以下技术方案：该密封式油润滑传动轴总成，包括主轴、壳体、上径向轴承、下径向轴承、上内套、下内套、推力轴承，所述壳体包括上壳体、下壳体，所述上壳体与所述上内套之间设置上储油室，上径向轴承的顶端连通该上储油室，上储油室内设有上滑动塞，且上滑动塞与上壳体内表面、上内套外表面之间密封；所述下壳体与所述下内套之间设置下储油室，下径向轴承的底端连通下储油室，下储油室内设有下滑动塞，且下滑动塞与下壳体内表面、下内套外表面之间密封；所述壳体上设有注油孔。
本实用新型的有益效果是：该种密封式油润滑传动轴总成中上、下滑动塞将推力轴承和径向轴承密封在中间，滑动塞之间充满液压油用来润滑与降温。这样泥沙中的颗粒无法与传动轴中各元件接触，减少磨损，大大的提高了传动轴的寿命。
附图说明
下面结合附图和实施例对本实用新型做进一步的说明：
图1为现有技术的结构示意图，
图2为本实用新型的结构示意图，
图中：1主轴，2壳体，21上壳体，22下壳体，3上内套，4下内套，5上径向轴承，6下径向轴承，7推力轴承，8上滑动塞，9下滑动塞，10注油孔。
具体实施方式
如图2所示，该密封式油润滑传动轴总成包括主轴1、壳体2、上径向轴承5、下径向轴承6、上内套3、下内套4、推力轴承7。所述壳体2包括上壳体21、下壳体22，所述上壳体21与所述上内套3之间设置上储油室，上径向轴承5的顶端连通该上储油室，上储油室内设有上滑动塞8，且上滑动塞8与上壳体21内表面、上内套3外表面之间密封。所述下壳体22与所述下内套4之间设置下储油室，下径向轴承6的底端连通下储油室，下储油室内设有下滑动塞9，且下滑动塞9与下壳体22内表面、下内套4外表面之间密封；所述壳体上设有注油孔10。
该密封式油润滑传动轴采用两个带有密封元件的滑动塞将外界的泥浆阻隔，同时上、下滑动塞可以自由活动，平衡两端的压力。上、下滑动塞将推力轴承和径向轴承密封在中间，上、下滑动塞之间充满液压油用来润滑与降温。这样泥沙中的颗粒无法与传动轴中各元件接触，减少磨损，大大的提高了传动轴的寿命。
Claims (1)
1.密封式油润滑传动轴总成，包括主轴、壳体、上径向轴承、下径向轴承、上内套、下内套、推力轴承，所述壳体包括上壳体、下壳体，其特征是：所述上壳体与所述上内套之间设置上储油室，上径向轴承的顶端连通该上储油室，上储油室内设有上滑动塞，且上滑动塞与上壳体内表面、上内套外表面之间密封；所述下壳体与所述下内套之间设置下储油室，下径向轴承的底端连通下储油室，下储油室内设有下滑动塞，且下滑动塞与下壳体内表面、下内套外表面之间密封；所述壳体上设有注油孔。
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