A sealing arrangement comprising a one-piece, peripheral, elastomeric sealing material for sealing a sealing space, the material containing a bearing-side sealing region and inserted between at least one outer rotatable bearing component and, mutually rotatable about the same center axis, at least o
A sealing arrangement comprising a one-piece, peripheral, elastomeric sealing material for sealing a sealing space, the material containing a bearing-side sealing region and inserted between at least one outer rotatable bearing component and, mutually rotatable about the same center axis, at least one inner rotatable bearing component of a rotary joint, wherein the sealing arrangement is form-lockingly and force-lockingly connected in a detachable and replaceable manner to a structure, namely (I) to a plunge cut in a surface parallel to a horizontal outer surface of one of the inner and outer rotatable bearing components, and (II) to a projecting material protrusion with a bottom surface which is disposed on the bearing side of this material protrusion, as an integral part of the inner or outer rotatable bearing component.
대표청구항▼
1. A sealing arrangement comprising a one-piece, peripheral, elastomeric sealing material for sealing a sealing space, the material containing a bearing-side sealing region and inserted between at least one outer rotatable bearing component and, mutually rotatable about the same center axis, at leas
1. A sealing arrangement comprising a one-piece, peripheral, elastomeric sealing material for sealing a sealing space, the material containing a bearing-side sealing region and inserted between at least one outer rotatable bearing component and, mutually rotatable about the same center axis, at least one inner rotatable bearing component of a rotary joint, wherein the sealing arrangement is form-lockingly and force-lockingly connected in a detachable and replaceable manner to a structure, namely (I) to a plunge cut in a surface parallel to a horizontal outer surface of one of the inner and outer rotatable bearing components, and (II) to a projecting material protrusion with a bottom surface which is disposed on the bearing side of this material protrusion, as an integral part of the inner or outer rotatable bearing component, the sealing arrangement comprising the following elements: a top edge of the sealing arrangement;two upper sealing lips;an upper deformation space as a recess in the sealing arrangement;a bearing side sealing region;a barb shaped fixing portion for inserting the sealing arrangement into the bearing component;a region of the sealing arrangement that contacts the bottom surface on the bearing side of the projecting material protrusion;a lower deformation space as a recess in the sealing arrangement; whereina) the top edge of the sealing arrangement is approximately flush with the horizontal outer surface of the rotatable bearing component in which the material protrusion of the sealing arrangement is present; and whereinb) all contact points or contact surfaces of the two upper sealing lips are either above the horizontal outer surface of the first rotatable bearing component, or all contact points or contact surfaces of the two upper sealing lips are below the horizontal outer surface of said first rotatable bearing component. 2. The sealing arrangement as in claim 1, wherein the sealing arrangement rests along an area, against the bottom, bearing-side surface of the material protrusion. 3. The sealing arrangement as in claim 2, wherein the material protrusion is bounded in a radial direction by a surface which projects from surfaces of the outer or inner rotatable bearing component in a direction toward the oppositely disposed rotatable bearing component, wherein the surfaces bound the sealing space, and, said material protrusion exhibiting small dimensions relative to dimensions of the inner space to be sealed. 4. The sealing arrangement as in claim 3, wherein the sealing arrangement gains further stabilization of its position between the bearing components by resting against surfaces at the outer rotatable bearing component and surfaces at the inner rotatable bearing component. 5. The sealing arrangement as in claim 4, wherein at least two sealing lips have different widths. 6. The sealing arrangement as in claim 5, wherein at least one of the surfaces bounding the region of the sealing arrangement, or bounding the plunge cut, as well as the outermost surfaces of the rotatable bearing components, are non-metallically or metallically coated. 7. The sealing arrangement as in claim 6, wherein at least one of the surfaces bounding the region of the sealing arrangement, or bounding the plunge cut, comprises a slanted or beveled surface. 8. The sealing arrangement as in claim 1, wherein at least one tension spring is disposed at the top edge of the sealing arrangement. 9. The sealing arrangement as in claim 8, comprising at least one additional connection screw or connection rivet introduced in that rotatable bearing component and where the material protrusion is disposed and serving to hold down the top edge of the sealing arrangement. 10. A bearing assembly having a sealing arrangement comprising: a rotary joint having at least one outer rotatable bearing component in the shape of a ring rotatable about an axis of rotation, and at least one inner rotatable bearing component in the shape of a ring rotatable about the axis of rotation;a gap formed between the outer rotatable bearing component and the inner rotatable bearing component;at least one sealing element disposed in the gap and sealing the gap peripherally, and substantially fluid-tightly, with respect to the environment;wherein at least a first one of the outer rotatable bearing component and the inner rotatable bearing component comprises at least one projecting material protrusion extending peripherally at least partway along a periphery of the regarding rotatable bearing component and configured to detachably fasten the sealing element;wherein the at least one sealing element is provided with a cross section configured such that the sealing element is form-lockingly and force-lockingly connected in a detachable and replaceable manner to a structure, namely (I) to a plunge cut in a surface parallel to a horizontal outer surface of the first one of the outer and inner rotatable bearing components, and (II) to the projecting material protrusion with a bottom surface which is disposed on a bearing side of this material protrusion, as an integral part of the first one of the outer and inner rotatable bearing components, the sealing element comprising the following elements:a top edge;two upper sealing lips;an upper deformation space as a recess in the sealing element;a bearing side sealing region;a barb shaped fixing portion for inserting the sealing element into the first rotatable bearing component;a region of the sealing element that contacts the bottom surface on the bearing side of the projecting material protrusion;a lower deformation space as a recess in the sealing element; whereina) the horizontal outer surface of the first rotatable bearing component carrying the material protrusion is approximately flush with the adjacent top edge of the sealing element; and whereinb) all contact points or contact surfaces of the two upper sealing lips of the sealing element are either above the horizontal outer surface of the first rotatable bearing component, or all contact points or contact surfaces of the two upper sealing lips of the sealing element are below the horizontal outer surface of said first rotatable bearing component. 11. The bearing assembly as in claim 10, wherein a formation present on at least one of the outer rotatable bearing component and the inner rotatable bearing component is provided with an undercut and the shape of the cross section of the sealing element is provided with a corresponding undercut, such that a substantially form-locking connection is created by the interaction of the two undercuts, so as to prevent the sealing element from detaching in the event of an overpressure inside the gap. 12. The bearing assembly as in claim 10, wherein at least two sealing lips rest against an abutment surface of at least one of the outer rotatable bearing component and the inner rotatable bearing component to form a labyrinth seal, such that a sealing effect of the sealing element with respect to the gap is preserved when the outer rotatable bearing component and the inner rotatable bearing component are moved relative to each other.
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이 특허에 인용된 특허 (7)
Basener, Helmut, Bearing seal with dual sealing lips.
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