• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A method for forming a roller bearing of very small axial dimension and high load-carrying capacity, and applicable also to a large-diameter roller bearing, comprising inserting the rollers into the circumferential guide and rolling track of the outer race and holding the rollers in position by two opposing lateral shoulder-forming spring rings of small thickness which are snap-inserted into corresponding inwardly flared grooves provided in the opposing faces of the bearing outer race. The rings being locked in position by using suitable dies to axially press annular appendices which define the mouth of the annular grooves. Modifications to this method are provided, and the roller bearings obtained in accordance with the invention are described.
    公开号:SU1760991A3
    申请号:SU894614650
    申请日:1989-07-12
    公开日:1992-09-07
    发明作者:Винчегерра Константиро；Альтаморе Массимо
    申请人:Нуовопиньоне-Индустрие Мекканике Э Фондериа С.П.А. (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering and can be used in reciprocating mechanisms, and in particular, in rotary lifting carriages operating at high speeds.
    A roller bearing is known, containing outer and inner rings with cylindrical raceways and rollers placed between them according to the author's certificate No. 617633, cl. F 16 C 43/04, 1976.
    A disadvantage of the known bearing is the impossibility of completely filling the balls of the inter ring space, which limits its load capacity at high speeds.
    Increasing the load capacity of the bearing is achieved by supplying the bearing with two spring rings located on both sides of the rings,
    making on the side surfaces of the outer ring on the side of the inner diameter of the annular grooves extending in the direction of the inner diameter and adjacent grooves forming slots with the grooves, the sections of which are made in the shape of a truncated cone, installing spring rings in the annular grooves, and making them on the outer side spring ring ledge, and on the side surface of the outer ring of an inclined annular ledge with a cross section of the form of a truncated cone and wedge shoulder, identical to the ring shoulder of the spring ltsa.
    Figure 1 shows the hinged connection of the shaft and the yaw of a pivoting heald carriage, general view; figure 2 is a partial section aa in figure 1; Fig. 3 shows a roller bearing assembly operation; Fig. 4 shows an assembly operation of a roller bearing; Fig.5-9 - technological oneЧ |
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    Walkie-talkie assembly options for roller bearing; in fig. 10 and 11 - technological operations for assembling a small-diameter bearing option.
    A key groove 2 is made on the main rotating shaft 1 of the rotary helix carriage 2, in which a key 3 is installed for rigid connection with the cam 4 of the drive rod 5, a small-diameter roller bearing b is located between the cheeks 7 and 8 of the lever 9. The cam A forms the inner roller ring bearing with continuous filling with rollers, the axial size of which does not exceed b mm, i.e. the distance between the cheeks 7 and 8. The outer ring of this bearing is the end of the connecting rod 5. The inner ring of the bearing is a cam 4, on which a cylindrical guide track 10 for rollers 11 is made, and a cylindrical track 12 for rollers on the outer ring 11. The rollers 11 are held in the desired position by two thin, located on opposite sides, side spring rings 13 and 14. For fixing these rings of large diameter in the required positions without any deformation of them on the opposite side. Two circumferential grooves 15 and 16 and two annular grooves 17 and 18 are machined on the opposite sides near the inner edge of the outer ring 5, thus forming two inclined annular projections 19 and 20 located on opposite sides, having a truncated cone in cross section (Fig. 3 ). The ridges 21 and 22 of these protrusions form round holes, the diameter of which is smaller than the outer diameter of the thrust spring rings 13, 14. With this ratio of diameters between the spring rings 13 and 14 and the corresponding ridges 21 and 22 of the annular projections 19 and 20, an overlap 23 forms, that the spring rings 13 and 14 are installed in the annular grooves 15 and 16 only with some axial elastic deformation. Such installation of spring rings 13 and 14 in the grooves 15 and 16 is a snap installation. The annular grooves 15, 16 expand inwards and therefore a cavity 24 is formed in them in the radial direction, which allows the spring rings to move in the radial direction and, therefore, the radial forces on the rings are eliminated during the pressing of the annular projections 19 and 20 over the flat surfaces 25 steps 26 on the outer edges of the stop spring rings 13 and 14.
    Roller bearing of small diameter and small axial size, which provides a swivel joint of the free end of the connecting rod 5,
    providing a swivel connection of the free end of the lever 9 of the pivoting helix carriage, in which the thrust spring rings 13 and 14 can be made of sheet metal with a thickness of about one-tenth of a millimeter, which ensures high hardness of the manufactured rings.
    Manufacturing located on opposite sides of the bearing side
    the thrust spring rings 13 and 14 for the rollers 11 are stamped to form annular shoulders 26 with a flat surface 25 on which the corresponding inclined annular projections 19 and 20 are pressed by pressing.
    As shown in Fig.10 and 11, the annular grooves 15 and 16 expanding inward have an annular step 27 on which an annular step of the abutment spring ring 13 or 14 is superimposed, which provides the required centering of the spring rings 13 and 14 in the annular grooves 15 and 16 of the outer ring bearing. Thrust spring
    rings 13 and 14 are used simultaneously as side stops for the inner ring 4 of the bearing, since their inner edges radially overlap the annular surfaces of the grooves 28 on the opposite
    sides of the inner ring.
    权利要求:
    Claims (3)
    [1]
    Claim 1. Roller bearing with small axial size, containing outer and
    inner rings with cylindrical raceways and rollers placed between them, characterized in that, in order to increase accuracy and efficiency, it is equipped with two spring
    rings located on both sides of the rings, and annular grooves are made on the side surfaces of the outer ring on the side of the inner diameter, expanding in the direction of the inner diameter and
    adjacent grooves forming grooves of the protrusions, the cross section of which is made in the shape of a truncated cone, and spring rings installed in the aforementioned annular grooves.
    [2]
    2. Bearing pop. 1, characterized in that a step is formed on the outer side of the spring ring, and on the outer side surface of the outer ring there is an inclined annular ledge with a cross section in the form of a truncated cone and a wedge
    a ledge identical to the annular shoulder of the spring ring.
    [3]
    3. A method of manufacturing a roller bearing with a small axial size and high loading capacity, with inner and outer rings, with raceways and rollers arranged between them, comprising placing a full set of rollers in one of the rings and the subsequent installation of the second ring, characterized in that In order to increase the bearing capacity, before installing the rollers on the side surfaces of the outer ring, two expanding colli- The rings annular grooves and two adjacent protrusions with a cross-section in the form of a truncated cone, after which they make two thin spring rings with an outer diameter exceeding the inner diameter of the annular groove, and after installing the rollers snap-in one of the spring rings and install the outer ring on the rollers, then make a snap installation of the second spring ring into the annular groove of the outer ring, and after that the axial pressing of the outer edges of the annular x grooves of the outer ring on top of the annular surfaces of the protrusions using two counter dies.
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    类似技术:
    公开号 | 公开日 | 专利标题
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    IT8821339D0|1988-07-13|
    BR8903551A|1990-03-13|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE7733084U1|Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt|
    GB149480A|1919-06-04|1920-08-19|Pierre Clerget|Improvements in roller bearings|
    US1630339A|1925-07-13|1927-05-31|Joseph A Ganster|Antifriction bearing and method of assembling the same|
    US1751453A|1927-06-25|1930-03-18|Beemer Frank|Antifriction wheel|
    US1985693A|1934-04-27|1934-12-25|Thomas L Robinson|Roller bearing|
    US2259325A|1939-12-23|1941-10-14|Thomas L Robinson|Roller bearing|
    FR931409A|1945-07-11|1948-02-23|Roulements A Billes Miniatures|Ball bearing manufacturing process|
    DE868682C|1951-08-19|1953-02-26|Duerkoppwerke Ag|Needle roller bearings with cage and outer race|
    FR1346426A|1961-11-08|1963-12-20|Skf Svenska Kullagerfab Ab|Devices for fixing in annular grooves non-split elements, such as rings, discs and the like made of a malleable material|
    CH404303A|1963-11-18|1965-12-15|Hydrel Ag|Needle roller bearings|
    DE1625567C3|1967-09-23|1973-11-08|Feinpruef Feinmess- U. Pruefgeraete Gmbh, 3400 Goettingen|Device for locking balls into a ball cage|
    US3533151A|1967-11-02|1970-10-13|Cons Foods Corp|Apparatus for inserting balls in a ball bearing retainer|
    DE1696600A1|1968-03-14|1971-11-25|Nuclear Materials & Equipment|Method and device for coating cores with a vaporizable material|
    US4017951A|1973-01-18|1977-04-19|Hillside Metal Products, Inc.|Method for manufacturing ball bearings having a sintered metal powder outer race|
    US4082382A|1974-01-23|1978-04-04|Hillside Metal Products, Inc.|Method for manufacturing ball bearings; a sintered metal outer race preform for use therein; and a ball bearing produced thereby|
    DE2500354A1|1975-01-07|1976-07-15|Pohlschroeder & Co Kg|Roller bearing with outer ball race ring - uses close-packed needle-like rollers requiring no cage or inner ring|
    DE3522461C2|1985-06-22|1988-11-03|Man Roland Druckmaschinen Ag, 6050 Offenbach, De|US5228788A|1990-01-19|1993-07-20|Nuovopignone Industrie Meccaniche E Fonderia Spa|Compact roller bearing|
    DE4117334A1|1991-05-27|1992-12-03|Bayerische Motoren Werke Ag|Ball bearing for driven wheels of vehicle - has safety ring in groove to limit axial play of bearing|
    US5237748A|1991-12-16|1993-08-24|Mcgill Manufacturing Company, Inc.|Method of making a bearing assembly|
    CH687559A5|1992-09-09|1996-12-31|Fischer Georg Automobilguss|Arrangement of a rolling bearing.|
    IT1256742B|1992-12-18|1995-12-15|Costantino Vinciguerra|ROLLER BEARING WITH VERY REDUCED AXIAL SPACE AND STRIPING ELASTIC CONTENT, PARTICULARLY SUITABLE FOR THE JOINTS OF CONNECTION BETWEEN DOBBY AND SQUARES OF A TEXTILE SHELF|
    DE4243450A1|1992-12-22|1994-06-23|Schaeffler Waelzlager Kg|Rolling bearing for radial and axial loads|
    DE4409725B4|1994-03-22|2004-08-26|Texparts Gmbh|Device for storing a spinning or twisting spindle|
    DE4439965A1|1994-11-09|1996-05-15|Schaeffler Waelzlager Kg|Constant velocity joint|
    IT1272875B|1995-01-10|1997-07-01|Nuovo Pignone Spa|DOOR LEVER COURSE|
    DE19650731A1|1996-12-06|1998-06-10|Schaeffler Waelzlager Ohg|Roller bearing|
    DE29713383U1|1997-07-28|1997-09-25|Goergens Detlef|Bearings, in particular for shaft levers in weaving machines|
    US6247847B1|1999-01-30|2001-06-19|Harken, Inc.|Flexible bearing cage|
    DE10316320B3|2003-04-10|2004-09-16|Lindauer Dornier Gmbh|Roller bearing for a heald frame mechanism, at a loom, has a two-part shrouding with a snap lock tongue structure to allow lubricant exchange and prevent the entry of dust and debris|
    FR2913079B1|2007-02-22|2010-01-01|Staubli Sa Ets|BEVERAGE BEARING WITH LUBRICATING CAVITY AND WORK DRAWING SYSTEM COMPRISING SUCH A BEARING|
    US10448583B2|2015-10-05|2019-10-22|Deere & Company|Disc saw felling head for a feller buncher|
    FR3092632B1|2019-02-07|2021-05-14|Ntn Snr Roulements|Bearing comprising a flange crimped in one of the rings of the bearing AND ITS MANUFACTURING PROCESS|
    CN110976978B|2019-12-25|2020-12-04|三门核电有限公司|Cutting method for lower C ring of large shielding main pump|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT2133988A|IT1226351B|1988-07-13|1988-07-13|PROCEDURE FOR THE REALIZATION OF ROLLER BEARINGS OF VERY REDUCED AXIAL AND HIGH LOAD CAPACITY, PARTICULARLY SUITABLE FOR RUNNING RODS OF ECCENTRIC ROTARY RUBBER OPERATING AT VERY HIGH SPEED, AND BEARINGS SO.|
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