The invention relates to a sealing device between a rotating fixed member and a member capable of rotating around a rotating axis. The sealing device has a box type sealing part (10) arranged in a cylindrical recess (2) of the member capable of rotating, a box type sealing part having an inner ring (11) made of a shape stable supporting ring (12) and an elastomer part (13) installed on the shape stable supporting ring. In this way, the inner ring (11) is fixedly arranged on the column area of the rotating fixed member through the ring area (14) of the elastomer part (13); the outer ring (15) of the box type sealing part (10) has a stable shape, and the outer ring is placed in the column concave part (2) of the rotating member with the tubular area (16) anti rotation; the sealing element (18) is arranged on the outer ring (15) anti rotation, and the sealing element has The sealing lip (19) is radially surrounded, and the pre stress of the self tightening spring ring (21) is kept close to the outer peripheral surface (20) of the tubular area of the support ring (12); the radial flange of the support ring (12) is radially extended from the tubular area of the support ring (12), and the elastomer part (13) is radially guided outwards on the radial flange and is radially at the outer end thereof A plurality of antifouling lips (22) are arranged axially side by side in the part area, and the antifouling lips are close to the radial inner side of the tubular area (16) of the outer ring (15). The additional antifouling lip (26) is attached to the radial inner side of the tubular area (16) of the outer ring (15), the additional antifouling lip is anti twist and can move axially with respect to the elastomer part (13), and the additional antifouling lip (26) has a stopper (27), the stopper axially extends from the cylindrical concave part (2) of the rotatable member, wherein the rotatable fixed member has a flange like extension part (7), and is convex A gap (8) is formed between the edge extension (7) and the opening area of the cylindrical recess (2) of the rotatable member.
【技术实现步骤摘要】
【国外来华专利技术】密封装置
本专利技术涉及在旋转固定构件与能围绕旋转轴线旋转的构件之间的密封装置,密封装置具有:置入到能旋转的构件的柱体式凹部内的盒式密封部,盒式密封部具有由形状稳定的支撑环和安装在形状稳定的支撑环上的弹性体部分制成的内环,其中,内环通过弹性体部分的环状区域固定地布置在旋转固定构件的柱体区域上;盒式密封部的形状稳定的外环,外环以管形区域抗相对旋转地置入到能旋转的构件的柱体式凹部内;抗相对旋转地布置在外环上的密封元件,密封元件具有径向环绕的密封唇,密封唇在自紧簧圈的预紧力下保持贴靠地形状稳定的支撑环的管形区域的外周面上;形状稳定的支撑环的径向凸缘,径向凸缘从支撑环的管形区域径向向外伸出,并且弹性体部分在径向凸缘上径向向外引导并且在其径向外端部区域上具有轴向并排的多个防污唇,防污唇贴靠在外环的管形区域的径向内侧上。
技术介绍
特别地,在将密封装置应用于脏污环境中时,例如在建筑机械或农业机械的情况中,防污唇应防止污物和湿气侵入到柱体式凹部内。因为防污唇在能旋转的构件旋转时沿外环的管形区域的径向内侧在其上滑动,所以在外部防护加载时导致防污唇被污物砂磨,并且因此导致防污唇的磨损以及防污唇的保护功能的降低。
技术实现思路
因此,本专利技术的任务是提供一种前述类型的密封装置,该密封装置构建简单并且更稳定地防止防污唇的损耗。此任务根据本专利技术通过如下方式解决,即附加防污唇贴靠在外环的管形区域的径向内侧上,附加防污唇相对于弹性体部分是防扭转的以及能轴向运动的,并且附加防污唇具有止挡器,止挡器轴向地从能旋转的 ...
【技术保护点】
1.在旋转固定构件与能围绕旋转轴线旋转的构件之间的密封装置,所述密封装置具有:置入到能旋转的构件的柱体式凹部(2)内的盒式密封部(10),所述盒式密封部具有内环(11),所述内环由形状稳定的支撑环(12)和安装在所述形状稳定的支撑环上的弹性体部分(13)构成,其中,所述内环(11)经由所述弹性体部分(13)的环状区域(14)固定地布置在所述旋转固定构件的柱体区域上;所述盒式密封部(10)的形状稳定的外环(15),所述外环以管形区域(16)抗相对旋转地置入到所述能旋转的构件的柱体式凹部(2)内;抗相对旋转地布置在所述外环(15)上的密封元件(18),所述密封元件具有径向环绕的密封唇(19),所述密封唇在自紧簧圈(21)的预紧力下保持贴靠在所述形状稳定的支撑环(12)的管形区域的外周面(20)上;所述形状稳定的支撑环(12)的径向凸缘,所述径向凸缘从所述支撑环(12)的管形区域径向向外伸出,并且所述弹性体部分(13)在所述径向凸缘上径向向外引导并且在其径向外端部区域上具有轴向并排的多个防污唇(22),所述防污唇(22)贴靠在所述外环(15)的管形区域(16)的径向内侧上,其特征在于,附加防 ...
【技术特征摘要】
【国外来华专利技术】20170322 DE 102017204857.31.在旋转固定构件与能围绕旋转轴线旋转的构件之间的密封装置,所述密封装置具有:置入到能旋转的构件的柱体式凹部(2)内的盒式密封部(10),所述盒式密封部具有内环(11),所述内环由形状稳定的支撑环(12)和安装在所述形状稳定的支撑环上的弹性体部分(13)构成,其中,所述内环(11)经由所述弹性体部分(13)的环状区域(14)固定地布置在所述旋转固定构件的柱体区域上;所述盒式密封部(10)的形状稳定的外环(15),所述外环以管形区域(16)抗相对旋转地置入到所述能旋转的构件的柱体式凹部(2)内;抗相对旋转地布置在所述外环(15)上的密封元件(18),所述密封元件具有径向环绕的密封唇(19),所述密封唇在自紧簧圈(21)的预紧力下保持贴靠在所述形状稳定的支撑环(12)的管形区域的外周面(20)上;所述形状稳定的支撑环(12)的径向凸缘,所述径向凸缘从所述支撑环(12)的管形区域径向向外伸出,并且所述弹性体部分(13)在所述径向凸缘上径向向外引导并且在其径向外端部区域上具有轴向并排的多个防污唇(22),所述防污唇(22)贴靠在所述外环(15)的管形区域(16)的径向内侧上,其特征在于,附加防污唇(26)贴靠在所述外环(15)的管形区域(16)的径向内侧上,所述附加防污唇相对于所述弹性体部分(13)是防扭转的以及能轴向运动的,并且所述附加防污唇具有止挡器(27),所述止挡器轴向地从所述能旋转的构件的柱体式凹部(2)伸出,其中,所述旋转固定构件具有凸缘状扩展部(7),并且在所述凸缘状扩展部(7)与所述能旋转的构件的柱体式凹部(2)的开口区域之间形成间隙(8)。
2.根据权利要求1所述的密封装置,其特征在于,所述附加防污唇(26...
【专利技术属性】
技术研发人员:沃尔夫冈·莫里茨,
申请(专利权)人:ZF腓德烈斯哈芬股份公司,
类型:发明
国别省市:德国;DE
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