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
  • F16C33/46—Cages for rollers or needles
  • F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
• • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D53/00—Making other particular articles
  • B21D53/10—Making other particular articles parts of bearings; sleeves; valve seats or the like
  • B21D53/12—Making other particular articles parts of bearings; sleeves; valve seats or the like cages for bearings
• • 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
  • F16C33/46—Cages for rollers or needles
• • 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
  • F16C33/46—Cages for rollers or needles
  • F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
  • F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
• • 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
  • F16C33/46—Cages for rollers or needles
  • F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
  • F16C33/4676—Details of individual pockets, e.g. shape or roller retaining means of the stays separating adjacent cage pockets, e.g. guide means for the bearing-surface of the rollers
• • 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
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
  • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
  • F16C19/44—Needle bearings
  • F16C19/46—Needle bearings with one row or needles
  • F16C19/463—Needle bearings with one row or needles consisting of needle rollers held in a cage, i.e. subunit without race rings
• • 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
  • F16C2220/60—Shaping by removing material, e.g. machining
  • F16C2220/66—Shaping by removing material, e.g. machining by milling
• • 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
  • F16C2361/00—Apparatus or articles in engineering in general
  • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49636—Process for making bearing or component thereof
  • Y10T29/49643—Rotary bearing

Definitions

• the present invention relates to a rolling bearing having a roller bearing cage with a plurality of arranged in at least one row rolling bearing pockets for receiving at least one row of rolling elements, wherein the rolling bearing cage consists of two side rings and a plurality of these connecting transverse webs, between which the rolling body pockets are formed, and at least one empty bag. Moreover, the invention relates to a method for producing such a roller bearing cage. Background of the invention
• the roller bearing cage consists of a cylindrical annular body on which at least one row of circumferentially spaced rolling elements pockets for receiving rolling elements is formed, and on which an axially adjacent row of empty pockets, for example, for receiving lubricant, is formed.
• the invention is based on the object to provide a rolling bearing with a roller bearing cage, which is easy to manufacture, requires no greater cost of materials than a conventional roller bearing cage, in its dimensions compared to a conventional roller bearing cage is unchanged and, accordingly, has virtually the same properties, and allows a targeted supply of lubricant.
• the invention has for its object to provide a method for producing such a rolling bearing cage.
• the invention is based on a rolling bearing with a roller bearing cage having a plurality of arranged in at least one row rolling elements pockets for receiving at least one row of rolling elements, wherein the rolling bearing cage consists of two side rings and a plurality of these connecting crossbars, between which the rolling body pockets are formed, wherein the rolling bearing cage has at least one empty pocket.
• the roller bearing cage is equipped in a row with fewer rolling elements, as it corresponds to the number of Wälz Eisenskon, whereby the Wälz stressesmaschinefig in the at least one row of WälzSystemtaschen at least one empty pocket without a rolling element.
• the roller bearing cage can also be manufactured with respect to a roller bearing cage, whose rolling element pockets are all equipped with rolling elements, but at least one rolling element pocket is not equipped with a rolling element and thus results in an empty pocket.
• This empty bag is used for receiving and / or distribution of lubricant.
• the empty pockets can have a different form from the rolling-body pockets.
• the empty pockets can have any desired geometry, for example oblique, conical, spherical, non-uniform, asymmetrical, smaller or larger than the rolling-body pockets. Its concrete geometry can be determined solely by the saving of manufacturing time and / or its pumping action, wherein a reworking of an empty bag made by a first production step is avoided.
• the rolling-body pockets are produced by mechanical processing, by firstly incorporating the rolling-body pockets at regular intervals in the circumference of the rolling bearing cage by means of a cylindrical milling cutter, the pockets provided for receiving rolling bodies can then be provided with undercuts by means of a further shaping milling tool, around the rolling bodies to prevent it from falling out before assembly and to guide it accurately during operation.
• the at least one empty pocket does not have such undercuts, which saves manufacturing costs.
• the WälzConsequentlykafig according to the invention may preferably be made in one piece from plastic and be designed to receive bearing needles of a needle bearing.
• a method for producing a roller bearing cage of the type described above is furthermore proposed, according to which at least the undercuts in the area of the rolling body pockets are produced by means of a form milling cutter.
• the rolling-element pockets can be used in a first step by means of a cylindrical milling cutter. edited and the empty pockets are incorporated by means of the same cylindrical milling cutter.
• the rolling bearing cage is made of plastic, it is possible to form the rolling-element pockets and the empty pockets by slides arranged in the injection-molding tool. Since this makes the injection mold is very expensive and costly, this type of production is only for very large numbers of advantage.
• empty pockets whose changes or center line in the circumferential direction with an outgoing radius from the cage longitudinal axis, are obtained form.
• the center line of an empty pocket is understood to mean the axially extending middle between the two axially oriented walls of the empty pocket.
• the mold cutter used for producing the undercuts of the rolling body pockets is guided in the rolling body radially along the side walls of the rolling elements produced by means of the cylindrical milling cutter, whereby it is possible first by means of the cylindrical milling all pockets in the rolling bearing cage including the derax faced pockets to produce, then subsequently in the same way, work the undercuts into the rolling-element pockets by means of the form-milling cutter.
• FIG. 1 shows a radial section through a roller bearing cage according to the invention with machining tools during its production
• Figure 2 is a plan view of the rolling bearing cage according to the invention according to Figure 1, which is intended for receiving Wälzlagemadeln.
• the rolling bearing cage 1 shown in Figures 1 and 2 is a solid cage for needle roller bearings, in particular for Losradlagerung in a transmission.
• the rolling bearing cage 1 may be made of plastic or metal, in particular brass.
• the rolling bearing cage 1 has rolling body pockets 2 and at least one empty pocket 5, which are formed between two parallel side rings 3 connecting transverse webs 4.
• the rolling-body pockets 2 differ from the empty pockets 5 in that they are provided with undercuts 6 in order to secure the bearing needles, not shown, in the rolling-body pockets 2 from falling out and to guide them during operation.
• the undercuts 6 are dimensioned so that the bearing needles can be inserted with slight pressure in the rolling body pockets 2 and are then held against falling out.
• the roller bearing cage 1 is shown in a single row, but it can also be designed in two or more rows, if required by the structural conditions.
• the illustrated embodiment shows a bearing cage 1, the rolling body pockets 2 and empty pockets 5 by means of milling in the rolling bearing cage 1 a worked.
• a cylindrical cutter 7 is moved radially against the roller bearing cage 1 until it has pierced the roller bearing cage 1, as shown, whereupon the cylindrical cutter 7 and / or the rolling bearing cage 1 are moved axially to a rolling body pocket 2 in the To cut to the required length.
• the cylindrical milling cutter 7 or the roller bearing cage 1 can be moved transversely to the longitudinal axis of the milling cutter 7 about the deflection 9 relative to the cage longitudinal axis 10, whereupon the empty pocket 5 in the same field as the aforementioned WälzSystemsko 2 is made by means of the same cylindrical cutter 7. Due to the deflection 9, the side walls or the center line 11 of the empty pocket 5 extend at an angle to the longitudinal axis of the cage 10, whereby a specific conveying or pumping action for lubricant in the rolling bearing is achieved.
• a form cutter 8 is radially guided into a prefabricated WälzERAtasche 2, as shown in Figure 1, then driven against a side wall of the WälzSystemtasche 2 and then moved axially along this WälzSystemwand along, whereby the first undercut 6 is formed.
• the shaping cutter 8 is moved axially in the circumferential direction in the direction of the opposite side wall of the rolling body pocket 2, whereby substantially straight end faces of the rolling body pocket 2 are incorporated.
• the form milling cutter 8 or the roller bearing cage 1 is moved axially in the opposite direction until the opposite end of the rolling body pocket 2 is reached.
• the processing of the end surface so that the apparent in Figures 1 and 2 form of WälzSystemtaschen 2 is incorporated.
• the illustrated embodiment shows only an incorporated empty pocket 5, but it is possible to incorporate more than one empty pocket 5 in the rolling bearing cage 1, a maximum of, for example, a rolling body pocket 2 alternately incorporate with undercuts 6 and a blank pocket 5 with oblique side walls in the rolling bearing cage 1.
• two parallel cylindrical cutters 7 and one form-cutters 8 can be arranged in the manner shown in a milling head, so that in each case a rolling-body pocket 2 is preprocessed by means of the cylindrical milling cutter 7, an empty pocket 5 finished machined and a pre-machined WälzMechchantasche 2 finished by means of the form cutter 8.
• roller bearing cage 1 is formed as a solid plastic cage
• the rolling body pockets 2 and the empty pockets 5 can be formed in an injection mold by corresponding slide, which are substantially radially movable.
• the slides In order to form the undercuts 6, however, the slides must be spreadable in the retracted position and be able to be extended for extension in the circumferential direction, so that they can be released from the undercuts 6 and pulled out.
• Such provided with numerous sliders injection molds are very expensive and costly to manufacture and therefore suitable only for mass production of such rolling bearing cages 1.
• the empty pockets 5, which are not needed for the rolling elements can, as shown in Figure 1, be incorporated with parallel and inclined at an angle to the cage longitudinal axis 10 side walls. It is also possible to produce the sidewalls of the rolling-element pockets radially apart or converging, thus to work them out conically or else spherically, asymmetrically or smaller or larger than the rolling bearing pockets 2. In the processing of the empty pockets 5 can simplify manufacturing take measures, in particular, the tool for editing the empty pockets 5 make it easier. Depending on the nature of this configuration, it is possible to have a targeted To produce conveying or pumping action or to set a throttling or obstructing effect for Schnnierstoff Kunststoff Kunststoffe. These effects may be dependent on the rotational speed and the direction of rotation of the rolling bearing.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Rolling Contact Bearings (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=45047820

Family Applications (1)

Country Status (6)

Families Citing this family (9)

Family Cites Families (11)

• 2011
  • 2011-01-26 DE DE102011003211A patent/DE102011003211A1/de not_active Ceased
  • 2011-11-30 US US13/993,938 patent/US9206845B2/en active Active
  • 2011-11-30 WO PCT/EP2011/071332 patent/WO2012100867A1/fr not_active Ceased
  • 2011-11-30 CN CN201180066159.8A patent/CN103328838B/zh not_active Expired - Fee Related
  • 2011-11-30 EP EP11788504.6A patent/EP2668410A1/fr not_active Withdrawn
  • 2011-11-30 KR KR1020137019793A patent/KR101911392B1/ko not_active Expired - Fee Related

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events