EP3887687A1 - Führungswagen einer linearführung und verfahren zur herstellung eines kopfstücks eines führungswagens - Google Patents
Führungswagen einer linearführung und verfahren zur herstellung eines kopfstücks eines führungswagensInfo
- Publication number
- EP3887687A1 EP3887687A1 EP19765648.1A EP19765648A EP3887687A1 EP 3887687 A1 EP3887687 A1 EP 3887687A1 EP 19765648 A EP19765648 A EP 19765648A EP 3887687 A1 EP3887687 A1 EP 3887687A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- deflection
- end piece
- shell
- guide carriage
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
- F16C33/6674—Details of supply of the liquid to the bearing, e.g. passages or nozzles related to the amount supplied, e.g. gaps to restrict flow of the liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
- F16C29/0609—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the ends of the bearing body or carriage where the rolling elements change direction, e.g. end caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
- F16C29/0635—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6622—Details of supply and/or removal of the grease, e.g. purging grease
- F16C33/6625—Controlling or conditioning the grease supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
- F16K15/147—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements having specially formed slits or being of an elongated easily collapsible form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/02—Shaping by casting
- F16C2220/04—Shaping by casting by injection-moulding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/02—General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6629—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
Definitions
- the invention relates to a guide carriage designed as part of a linear guide according to the preamble of claim 1. Furthermore, the invention relates to a method for producing a head piece as a component of such a guide carriage.
- a generic guide carriage is known for example from DE 10 2006 055 196 A1.
- the guide carriage provides raceways for rolling elements that continue to contact a guide rail.
- the rolling elements roll in the operation of a linear guide unit, which includes the guide carriage and the guide rail, in several closed circulation channels.
- the section of each circulation channel in which the rolling elements contact both the guide carriage and the guide rail is referred to as the load section.
- the load section The section of each circulation channel in which the rolling elements contact both the guide carriage and the guide rail.
- the load section From the load section, the rolling elements are guided via a deflection section into a return section and from there via a further deflection section back into the load section.
- Lubricants can be supplied to the guide carriage according to DE 10 2006 055 196 A1 via the deflection section.
- a passage opening for the introduction of lubricant.
- a valve is attached to the passage opening.
- Another carriage of a linear roller bearing is fenbart in DE 103 32 922 A1.
- the valve has a slot provided for the passage of lubricant and crossing the cross section of a lubricant channel, which slot is bordered by slot surfaces, the slot surfaces abutting one another when the valve is closed while the slot is closed.
- a carriage of a linear roller bearing is known, which has a micropump for pumping lubricant.
- the micro pump can be designed as a piezoelectric diaphragm pump.
- the invention has for its object to develop a targeted lubrication guiding carriage a linear guide compared to the prior art, especially from a manufacturing perspective.
- the guide carriage comprises a plurality of respectively closed circulation channels for rolling elements, each circulation channel being formed from a load section, two deflection sections and a return section.
- the deflection sections as well as the return section are located within the guide carriage, whereas the load section is also limited by the associated guide rail.
- a valve for preventing the backflow of lubricant from the circulation channel is arranged at a transfer point located in the guide carriage in a lubricant channel for supplying lubricant to one of the deflection sections.
- the deflection section that is to say part of the annularly closed channel in which the rolling elements are guided, is delimited within the guide rail by a deflection shell located in an end piece of the guide carriage.
- the valve mentioned which has the function of a sudschlagven valve, is formed in one piece with at least one of the elements of the deflection shell and end piece.
- the valve can be designed as an integral part of the deflection shell or as an integral part of the end piece receiving the deflection shell. It is also possible for the deflection shell and the end piece to be combined to form a one-piece component which forms the valve directly. In all cases, the valve is preferably a plastic part.
- the valve ensures that the lubricant channel arranged in the guide carriage does not run empty between two lubrication intervals. Thus, the lubricant channel does not need to be filled first for the next lubrication process before lubricant can be transferred to the deflection sections.
- valve is part of the deflecting shell
- annular sealing section radially outside the valve, which is also an integral part of the deflecting shell and, for example, abuts a flat sealing surface of the end piece.
- the sealing section can protrude as a toroidal elevation from an end face of the deflection shell.
- annular, raised and deepened structures surrounding the valve can be formed on the abutting, mutually sealed surfaces of the steering shell and the end piece, so that overall a labyrinth-like seal is provided.
- a separate sealing element for example in the form of a conventional O-ring, is optionally installed.
- valve is formed directly by the end piece
- various variants of the seal between the end piece and the deflection shell are possible.
- the valve is surrounded by an annular extension of the deflection shell, with radially outside the annular shaped extension an annular sealing portion is formed by the end piece.
- the ring-shaped extension which is formed by the steering shell, can also be used as an assembly aid when assembling the deflection shell and end piece.
- the injection-molded manufacture of the relevant element from plastic is preferably carried out using the two-component injection molding process. This means that different hard plastics are connected to each other during injection molding. Sections of the element to be produced, which are to have sealing or valve properties with respect to lubricant, are produced from a softer material in comparison to surrounding sections.
- the valve is formed directly by the deflection shell, it is also possible to manufacture the entire part - here: the deflection shell - from a single plastic material, provided that this has sufficient flexibility in the thin-walled regions of the valve relevant part offers.
- the valve can be produced either with the deflection shell or with a special end piece or with an end piece which is also designed as a deflection shell, either with the same material or with a non-uniform material, made of plastic.
- the rolling elements of the linear guide which are guided in endless tracks in the guide carriage, can be balls or rollers.
- the rolling elements are optionally guided in a chain or through intermediate pieces.
- Fig. 1 in a sectional view a section of a carriage
- FIG. 3 shows a modified embodiment of the arrangement according to FIG. 2,
- Fig. 5 in a perspective view of an end piece of the carriage
- a guide carriage 1 is part of a linear guide, with regard to its function, reference is made to the prior art cited at the beginning.
- Rolling elements 2 roll between a guide rail of the linear guide and the guide carriage 1 in a plurality of closed circulation channels 8, which are largely formed within the guide rail 1.
- Each circulation channel 8 is made up of a load section 3, a return section 4 and two deflection sections 5, which connect the load section 3 to the return section 4. Only in the load section 3, the rolling elements 2 contact the guide rail in addition to the guide carriage 1.
- a support body of the guide carriage 1 is designated 6. End pieces 7, in which the deflection sections 5 are formed, are attached to the end faces of the support body 6.
- An outer deflection 11 is formed by the deflection shell 9. Lubricant can be supplied to the deflection section 5 via a lubricant channel 10 which runs through the end piece 7.
- a transfer point via which the lubricant can be introduced from the lubricant channel 10 into the deflection shell 9 is designated by 13. After the lubricant has passed the transfer point 13, it flows through a passage opening 14 in the order steering shell 9 in the deflection section 5. A back flow of lubricant is prevented by a valve 16 at the transfer point 13.
- the assembly or unit from the deflection shell 9 and end piece 7 is referred to in the preceding cases, regardless of the manufacturing configuration, as the head piece 26.
- the head piece 26 is on the end face of the guide carriage 1 closed by a cover 17. Between the cover 17 and the head piece 26, a seal 15 is inserted, which seals the carriage 1 against the guide rail.
- valve 16 is formed directly by the deflection shell 9. Radially outside the valve 16 is an annular circumferential, bead-starting sealing section 22, which is also formed directly by the steering shell 9 order. The sealing section 22 lies against a flat sealing surface 18 of the end piece 7.
- FIG. 3 modified in comparison to FIG. 2, a separate sealing ring in the form of a standard O-ring is inserted between the deflection shell 9 and the end piece 7.
- a ring-shaped sealing section formed by the deflecting shell 9 is omitted in this case.
- valve 16 corresponds to the design according to FIGS. 1 and 2 and the design according to FIG. 3. However, according to FIGS. 4 and 5, the valve 16 is not in the deflection shell 9 , but integrated into the end piece 7. Accordingly, the annular sealing section 22 is also formed in this case directly by the end piece 7.
- the valve 16 has ke gel-shaped walls 19, which are shown in Fig. 4 as in Fig. 2 and in Fig. 3 in the closed state.
- FIGS. 6 to 8 Further design options of the valve 16 are outlined in FIGS. 6 to 8. Each of these designs is suitable both for the guide carriage 1 according to FIG. 1 and for the guide carriage according to FIG. 4 and for the exemplary embodiment according to FIG. 9. 6 to 8, slots 20, slot walls 21, walls 23 and a valve opening 24 formed by the respective valve 16 can be seen.
- the various openings 20, 23 are either generated during the plastic injection process or subsequently by piercing.
- connecting webs 25 are provided on the inside of the end piece 7, through which material, that is to say plastic, can flow during the injection molding process.
- the embodiment according to FIGS. 9 and 10 differs from the embodiments according to FIGS. 1 to 5 in that the guide carriage 1 has two head pieces 26 on its end faces, each of which combines the functions of a deflection shell 9 and an end piece 7.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018129652.5A DE102018129652A1 (de) | 2018-11-26 | 2018-11-26 | Führungswagen einer Linearführung und Verfahren zur Herstellung eines Kopfstücks eines Führungswagens |
PCT/DE2019/100773 WO2020108680A1 (de) | 2018-11-26 | 2019-08-27 | Führungswagen einer linearführung und verfahren zur herstellung eines kopfstücks eines führungswagens |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3887687A1 true EP3887687A1 (de) | 2021-10-06 |
Family
ID=67902293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19765648.1A Withdrawn EP3887687A1 (de) | 2018-11-26 | 2019-08-27 | Führungswagen einer linearführung und verfahren zur herstellung eines kopfstücks eines führungswagens |
Country Status (5)
Country | Link |
---|---|
US (1) | US11603886B2 (de) |
EP (1) | EP3887687A1 (de) |
CN (1) | CN112930449A (de) |
DE (1) | DE102018129652A1 (de) |
WO (1) | WO2020108680A1 (de) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4141038A1 (de) * | 1991-12-12 | 1993-06-17 | Schaeffler Waelzlager Kg | Abstreifereinheit fuer ein lagerelement |
DE19830140A1 (de) * | 1998-07-06 | 2000-01-20 | Star Gmbh | Linearführungseinrichtung |
US6443619B1 (en) * | 1998-12-23 | 2002-09-03 | Rexroth Star Gmbh | Guide unit |
DE10332922A1 (de) * | 2003-07-19 | 2005-02-03 | Ina-Schaeffler Kg | Führungswagen eines Linearwälzlagers |
DE102006055196A1 (de) * | 2006-11-23 | 2008-05-29 | Schaeffler Kg | Linearführungseinheit |
DE102007056862B4 (de) | 2007-11-26 | 2023-01-26 | Robert Bosch Gmbh | Linearrollenlager mit Umlenkstück |
DE102009016163A1 (de) | 2009-04-03 | 2010-10-14 | Schaeffler Technologies Gmbh & Co. Kg | Führungswagen eines Linearwälzlagers mit Schmiervorrichtung |
DE102011002427A1 (de) | 2011-01-04 | 2012-07-05 | Robert Bosch Gmbh | Doppelrückschlagventil zur bidirektionalen Durchflusskontrolle von gasförmigen und/oder flüssigen Medien sowie Verwendung des Doppelrückschlagventils |
DE102012222397A1 (de) * | 2012-12-06 | 2014-06-26 | Robert Bosch Gmbh | Führungswagen |
DE102013221472A1 (de) | 2013-10-23 | 2015-04-23 | Schaeffler Technologies AG & Co. KG | Kopfstück für einen an einer Führungsschiene wälzgelagert geführten Wagen |
-
2018
- 2018-11-26 DE DE102018129652.5A patent/DE102018129652A1/de active Pending
-
2019
- 2019-08-27 CN CN201980071193.0A patent/CN112930449A/zh active Pending
- 2019-08-27 EP EP19765648.1A patent/EP3887687A1/de not_active Withdrawn
- 2019-08-27 WO PCT/DE2019/100773 patent/WO2020108680A1/de unknown
- 2019-08-27 US US17/295,492 patent/US11603886B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US11603886B2 (en) | 2023-03-14 |
WO2020108680A1 (de) | 2020-06-04 |
CN112930449A (zh) | 2021-06-08 |
US20220003274A1 (en) | 2022-01-06 |
DE102018129652A1 (de) | 2020-05-28 |
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