A lubricating unit for rolling element tracks of a linear system includes a lubricating element housing in which a receiving space for a lubricating element is formed, the lubricating element housing is mountable on a movable element of the linear system using a plurality of latch elements fixed in
A lubricating unit for rolling element tracks of a linear system includes a lubricating element housing in which a receiving space for a lubricating element is formed, the lubricating element housing is mountable on a movable element of the linear system using a plurality of latch elements fixed in position relative to the lubricating unit housing, the movable element is movably guided via the rolling of rolling elements along a guide element, which defines an axis of the linear system, the latch elements extend in the axial direction away from one axial end of the lubricating unit toward the movable element, and each latch element includes a bearing surface facing the lubricating element housing for engaging with a matching bearing surface, which is fixed in position relative to the movable element.
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What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims: 1. A lubricating unit for rolling element tracks of a linear system, comprising a lubricating element housing provided with a receiving space; a lubricating element provided in said receiving s
What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims: 1. A lubricating unit for rolling element tracks of a linear system, comprising a lubricating element housing provided with a receiving space; a lubricating element provided in said receiving space of said lubricating element housing; a plurality of radially inwardly bendable latch elements mounting said lubricating element on a movable element of a linear system fixed in a position relative to said lubricating unit housing; a guide element along which said movable element is movably guided and which defines an axis of the linear system via rolling of rolling elements, said latch elements extending from one axial end of the lubricating unit in an axial direction toward said movable element, and each of said latch elements including a substantially radially extending bearing surface that faces said lubricating element housing and engages with a substantially radially extending matching bearing surface which is fixed in position relative to said movable element. 2. A lubricating unit as defined in claim 1, wherein said guide element has a cylindrical outer circumferential surface, the lubricating unit being annular in shape on an axial end and having an inner circumferential surface that concentrically encloses said cylindrical outer circumferential surface of said guide element. 3. A lubricating unit as defined in claim 2, wherein said movable element has an inner circumferential surface which is provided with an annular groove that encloses said guide element, said latch elements being distributed around a circumference of the inner circumferential surface of the lubricating unit such that said bearing surface of each of said latch elements bears directly or indirectly against said annular groove formed in said inner circumferential surface of said movable element. 4. A lubricating unit as defined in claim 1, further comprising a retaining element for engaging in said annular groove, which is sized so that, when in an engaged state, it projects radially inwardly beyond said inner circumferential surface of said movable element and forms said matching bearing surface on a side facing away from a front end of said movable element facing the lubricating unit. 5. A lubricating unit as defined in claim 4, wherein said retaining element is configured as a segmented split washer which is insertable in said annular groove such that its radial outer edge engages in said annular groove with preload. 6. A lubricating unit as defined in claim 1, wherein said latch elements are configured as radially outwardly extending hook elements. 7. A lubricating unit as defined in claim 1, wherein said latch elements are elastically bendable in a radial direction, at least inwardly. 8. A lubricating unit as defined in claim 1, wherein said bearing surface and said matching bearing surface are configured so that with a maximum contact between said bearing surface and said matching bearing surface, said bearing surface and said matching bearing surface overlap in a radial direction further than a length of a radial distance between an inner, as viewed in a radial direction, surface of said latch elements and an outer surface of said guide element. 9. A lubricating unit as defined in claim 1, wherein said latch elements are provided on an axial end of said lubricating element housing facing said movable element. 10. A lubricating unit as defined in claim 1, further comprising a mounting body that is separate from said lubricating element housing and coupled with an axial end of said lubricating element housing facing said movable element, said latch elements being provided on said mounting body. 11. A lubricating unit as defined in claim 10, wherein said lubricating element housing has a front opening formed on its axial end, said mounting body is inserted in said front opening and fixed in position against said lubricating element housing, further comprising at least one fastening element that fixes said mounting body in position against said lubricating element housing and exerts an inwardly acting force in a radial direction against an outer wall of said lubricating element housing. 12. A lubricating unit as defined in claim 10, wherein said lubricating element housing has a front opening formed on its axial end, said mounting body is inserted in said front opening and fixed in position against said lubricating element housing, further comprising at least one fastening element that fixes said mounting body in position against said lubricating element housing, is guided through an outer wall of said lubricating element housing in a radial direction, and engages with a side wall of said mounting body. 13. A lubricating unit as defined in claim 12, wherein said mounting body has a cylindrical outer wall which at least in its axial end is inserted into said lubricating element housing and has an outer surface with a recess, in which said at least one fastening element engages. 14. A lubricating unit as defined in claim 2 wherein said lubricating element housing has an outer surface provided with a thread, further comprising a lock nut screwed onto said thread and fixing said lubricating element housing in place in an axial direction as it bears against an axial end face or an end face of said movable element pointing toward said axial end face. 15. A lubricating unit as defined in claim 1, wherein said receiving space for said lubricating element is formed as an annular receiving space composed of a lubricant-storing material in said lubricating element housing, said lubricating element housing having an inner wall which bounds said receiving space and encloses said guide element. 16. A lubricating unit as defined in claim 15, wherein said receiving space has an inner wall provided with an opening, through which an application section of said lubricating element is guided in order to contact a bearing surface of the rolling element. 17. A lubricating unit as defined in claim 16, wherein said opening through which said application section is guided is formed in an aplication nose which is insertable in an inner wall of said lubricant element housing. 18. A lubricating unit as defined in claim 1, further comprising a cover that closes said receiving space. 19. A linear system, comprising a guide element that defines an axis of the linear system; a movable element which is movably guided along said guide element via a rolling motion of rolling elements; and a lubricating unit mounted on said movable element for rolling element tracks of the linear system and including a lubricating element housing provided with a receiving space; a lubricating element provided in said receiving space of said lubricating element housing, a plurality of latch element mounting said lubricating elements on a movable element of the linear system fixed in a position relative to said lubricating unit housing, a guide element along which said movable element is movably guided and which defines an axis of the linear system via rolling of rolling elements, said latch element extending from one axial end of the lubricating unit in an axial direction toward said movable element, and each of said latch elements including a bearing surface that faces said lubricating element housing for engaging with a matching bearing surface which is fixed in position relative to said movable element. 20. A linear system as defined in claim 19, wherein the linear system is configured as a rolling element screw drive. 21. A linear system as defined in claim 19, wherein the linear system is configured as a rolling element screw drive formed as a ball screw drive, the linear system comprising a spindle as the guide element, and a nut element enclosing said spindle as the movable element; at least one nut groove with two end regions extending around an axis in a manner of a helix and guiding rolling elements and formed in an inner circumferential surface of said nut element and also defining together with an outer circumferential surface of said spindle a helical rolling element screw paths extending between the two end regions, said rolling element screw path being appended by a rolling element return path extending between the two end regions to form a closed rolling element recirculating path which is filled with an endless row of rolling elements that roll at all times and lie in said nut groove and on a helical trajectory of the outer circumferential surface, wherein a rolling element deflection for transferring said rolling elements between said rolling element screw path and said rolling element return path or between said rolling element return path and said rolling element screw path is located on said nut element in each of said end regions. 22. A lubricating unit as defined in claim 1, wherein said lubricating element housing has an outer surface provided with a thread, further comprising a lock nut screwed onto said thread and fixing said lubricating housing in place in an axial direction, said lock nut concentrically surrounding said guide element.
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이 특허에 인용된 특허 (5)
Brown Mark P. ; Sepesi David A., Ball screw and nut assembly with a nut having a preloaded wiper thread and method of its manufacture and operation.
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