• 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:
    The drive comprises a driving spindle (1), two roller bearings (2) and a driven casing (3). The roller bearings (2) used as intermediaries between the spindle (1) and the casing (3) comprise each a rolling ring (5) arranged in the thread (4) of the spindle (1) and are excentrically arranged. The medial axes (6) of the roller bearings (2) are skewed with respect to the axis (7) of the spindle (1). Two sleeves (13) supported inside the casing (3) have each a reception housing (8) for the roller bearings. In order to decrease the friction loss and thereby enhance the efficiency of the driving mechanism, the reception housing (8) extends throughout 180<o> at the maximum so that the roller bearings (2) may be inserted perpendicularly to their axes (6) in the housings (8).
    公开号:SU1409137A3
    申请号:SU843828179
    申请日:1984-12-10
    公开日:1988-07-07
    发明作者:Бетцинг Клаус；Бетцинг Рудольф；Бетцинг Аннетте；Бетцинг Ульрих
    申请人:Клаус Бетцинг (Фирма)；
    IPC主号:
    专利说明:

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    The invention relates to mechanical engineering, in particular to lead screw drives used to convert rotary motion into contraction.
    The purpose of the invention is to increase efficiency by reducing friction,
    FIG. 1 shows the drive, general view; in fig. 2 - the same, longitudinal section; in fig. 3 - housing with a recess for the outer ring of the bearing, longitudinal section; in fig. 4 - annular protrusion and part of the spindle screw.
    The drive includes a housing 1 in which the lead screw 2 and at least one eccentrically mounted bearing 3 are placed, whose axis 4 lies in a plane perpendicular to the axis 5 of the screw 2, and does not cross with the latter. The teething ring 6 of the bearing 3 has an annular protrusion 7 assigned to interact with the threaded groove 8 of the screw 2. The drive also brakes the housing 9 with a notch 10 for the outer ring 11 of the bearing 3, which in cross section is a semi-circle. Between the inner 6 and outer 11 bearing rings 3 are placed a rolling body 12, made in the form of balls. In case 1 there are radial threaded holes 13, in which are mounted the installation screws 5A 1A, which connect the case 9 of bearing 3 to the housing
    Som 1 drive. The drive is also provided with radial bearings 15 for mounting the lead screw 2 in the housing 1. The radius 16 of the curvature of the collar 7 is 0.7-0.9 of the radius 17 of the screw groove 8 of the screw 2. Within these limits, the radius 16 is selected so that that at point 18, between the lead screw 2 and the ring protrusions 7, the tangent 19 to the ledge 7 passed approximately at an angle Z to the long axis 5 of the lead screw 2.
    The drive works as follows
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    When the lead screw 2 rotates, the drive body 1 receives translational movement through the intermediate elements — bearings 3, associated with the housing by means of set screws 14. In this case, friction is reduced by making the recess profile in the form of a semicircle in cross section. The same purpose is served by the set screws placed in the radial threaded holes, which allow the bearing to adjust the eccentricity, which regulates the interaction between the lead screw and the bearing.
    权利要求:
    Claims (1)
    [1]
    By making the annular protrusion of the inner ring of the bearing with the specified radius of curvature during operation of the drive, the friction between the bearing and the screw thread decreases, resulting in an increase in efficiency. Invention Formula
    A drive with a rolling ring and a lead screw, comprising a housing, a lead screw housed in it, at least one eccentric mounted bearing, the axis of which lies in a plane perpendicular to the screw axis, and does not intersect the latter, and the inner ring has an annular a protrusion designed to interact with the screw groove of the screw, and a housing with a recess for the outer ring of the bearing, characterized in that, in order to increase efficiency by reducing friction, the profile of the recess of the housing for the outer ring of the bearing in cross section The cross section is a semi-circle, the body has radial threaded holes, the radius of curvature of the annular protrusion is 0.7-0.9 times the radius of the screw thread grooves, and the drive is equipped with set screws placed in the screw holes for connecting the bearing housing to the body. drive.
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU1409137A3|1988-07-07|Actuator with antifriction ring and lead screw
    US4665771A|1987-05-19|Hypocyclic drive
    CA1188909A|1985-06-18|Speed reducer and method for reducing backlash
    US5024114A|1991-06-18|Wobble drive for a translationally moving structural part
    GB2054788A|1981-02-18|Coupling for rotor of Moineau type motor
    US5769605A|1998-06-23|Sealing device for a rotary shaft
    SU1476196A1|1989-04-30|Single-screw hydraulic machine
    EP0087742A2|1983-09-07|Speed reducer with anti-backlash bearing
    SU1328595A1|1987-08-07|Bearing unit
    SU1310561A1|1987-05-15|Roller screw mechanism
    SU1495921A1|1989-07-23|Bearing assembly of electric machine
    SU1307138A1|1987-04-30|Gear transmission
    SU1221419A1|1986-03-30|Screw telescopic mechanism
    SU1357637A1|1987-12-07|Ball bearing screw mechanism
    SU1490306A1|1989-06-30|Sine-ball transmission
    SU1401200A1|1988-06-07|Ball-and-worm gearing
    SU1728560A1|1992-04-23|Planetary gear
    SU1368546A1|1988-01-23|Gearing
    SU1203292A1|1986-01-07|Input of rotary motion
    SU912986A1|1982-03-15|Helical mechanism for converting rotation to transitional motion
    SU1161749A1|1985-06-15|Mechanism for converting continuous rotary motion to intermittent rotary motion
    SU1453103A1|1989-01-23|Worm ball gearing
    GB2173549A|1986-10-15|Peristaltic pumps
    SU1499013A1|1989-08-07|Mechanism for converting reciprocal to rotary motion
    SU1401177A1|1988-06-07|Bearing unit of high-speed large-sized shaft
    同族专利:
    公开号 | 公开日
    BR8406595A|1985-03-12|
    DE3469948D1|1988-04-21|
    WO1984004143A1|1984-10-25|
    EP0122596A1|1984-10-24|
    AT33064T|1988-04-15|
    JPS60501018A|1985-07-04|
    EP0122596B1|1988-03-16|
    DE3313453A1|1984-10-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1450764A1|1964-08-29|1969-04-24|List Dipl Ing Heinrich|Roll nut adjustment mechanism with feed spindle|
    US3614900A|1970-05-08|1971-10-26|Wahlmark Systems|Anti-friction drive|
    EP0034640B1|1980-02-25|1983-09-21|Robert Dr. Gärtner|Screw mechanism|
    DE3012334A1|1980-03-29|1981-10-15|Norco Inc., Georgetown, Conn.|Low-friction mechanical screw transmission - has radially movable socket with two load surfaces for contg. thread-engaging ball|
    DE3225495A1|1982-07-08|1984-01-12|AMD-Vertriebsgesellschaft für Antriebstechnik mbH, 5800 Hagen|Screw mechanism with a screw and a threaded rolling nut|GB8608967D0|1986-04-12|1986-05-14|Jaguar Cars|Mechanical linear actuator|
    DE3905274A1|1989-02-21|1990-08-23|Gaertner Robert|Spindle drive|
    EP0410032B1|1989-07-26|1992-10-14|FAG |Nut for threaded spindle|
    US5533417A|1993-04-12|1996-07-09|Hughes Aircraft Company|Leadscrew assembly|
    GB2277788A|1993-05-06|1994-11-09|Chen Hsi Kuan|Bearing screw and nut assembly|
    DE19515093A1|1995-04-25|1996-10-31|Schaeffler Waelzlager Kg|Spiral gearing with threaded spindle with ring nut housing for roller bearings|
    DE19523395A1|1995-06-28|1997-01-02|Schaeffler Waelzlager Kg|Screw gear with a rolling ring nut|
    DE19529037A1|1995-08-08|1997-02-13|Schaeffler Waelzlager Kg|Screw gear with a rolling ring nut|
    US6516680B1|1998-10-15|2003-02-11|Koyo Seiko Co., Ltd.|Power steering apparatus|
    DE69819826T2|1997-02-28|2004-09-23|Koyo Seiko Co., Ltd.|POWER CONTROL SYSTEM|
    EP1884684B1|2006-08-03|2013-06-12|Schaeffler Technologies AG & Co. KG|Transmission system for transforming a rotary movement into a linear movement|
    DE102007009626A1|2007-03-03|2008-09-04|Tirron-Elektronik Gmbh|Linear drive unit for transferring a force from a fixed part to a linear moving part comprises a threaded spindle and a rolling bearing nut and a rolling bearing module|
    DE102010007278A1|2010-02-08|2011-11-17|Föhrenbach GmbH|Rolling bearing for use in e.g. rotary table, in spindle bearing unit, has outer ring whose outer side comprises axial portions with screw thread, where outer diameter of one portion is larger than outer diameter of other portion|
    DE102011051514A1|2011-07-01|2013-01-03|Wittenstein Ag|transmission|
    WO2016181341A1|2015-05-14|2016-11-17|Fondazione Istituto Italiano Di Tecnologia|Linear drive mechanism of the screw and nut type with perfect rolling contact|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19833313453|DE3313453A1|1983-04-11|1983-04-11|RING RING SCREW DRIVE|
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