• 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:
    An overload coupling for the protection of drive trains on machines, particularly agricultural machines powered by a tractor, protects against overloading in at least one rotational direction. A coupling sleeve is mounted for rotation around a coupling hub of the overload coupling. Relative rotation between the hub and sleeve is about a coupling axis. A plurality of circumferentially spaced recesses are provided in the coupling hub which each contain a rotatably mounted rotor. The rotors are mounted about their own rotor axes which are parallel to but spaced apart from the coupling axis. Each rotor contains a radially movable driver cam which is spring-loaded and has cam surfaces for engaging detent grooves in the sleeve. With the driver cams engaged in the detent grooves, relative rotation between the hub and sleeve is resisted. By shaping the cam surfaces and adjacent abutment surfaces of the driver cams, the direction and force of disengagement can be set between the coupling hub and coupling sleeve.
    公开号:SU1560063A3
    申请号:SU874203479
    申请日:1987-10-12
    公开日:1990-04-23
    发明作者:Гейстхоф Хуберт
    申请人:Жан Вальтершайд Гмбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering, namely, to safety clutches primarily for protecting agricultural machines driven by a tractor for at least one direction of rotation.
    The aim of the invention is to enhance the functionality, reduce the impact loads when triggered, and speed up the process
    Fig. 1 shows a safety coupling, a longitudinal slitJ in Fig. 2 is a section A-A in FIG. 1 (operating position of the cams); in fig. 3 - the same, the arrangement of the cams in idle mode; Figures 4-7 illustrate various embodiments of the rotary cams.
    The safety clutch contains two concentrically located semi-couplings 1 and 2, one of which is designed as a hub, and the other - as a sleeve, interconnected by spring-loaded driver cams 3 installed in cylindrical swivel elements 4. Cams 3 are made with supporting surfaces 5 and 6. In the coupling half 2, radial holes 7, evenly spaced around the circumference, are made, each of which has a cylindrical section under the rotating element, the axis of which is located parallel to the axis of the coupling. The rotary elements 4 with the cams 3 installed in them are placed in the radial holes of the coupling half 2, while the cam supporting surfaces are included in the stop grooves 8 made in the coupling half 1. In the same rotary element 4 several driving cams 3 can be successively installed.
    The hole for the cam 3 in the rotary element 4 can be performed
    deaf or through, while in the bottom
    A wedge-shaped recess 9 is made of each radial hole 7 of the half-coupling 2. In each through-hole of the rotary element two spring-loaded cam 3 are spring-loaded with each other in the radial direction with one spring 10, the supporting surfaces of one of which are in contact with the surfaces of the wedge-shaped recess 9.
    The drive cam 3 may be made symmetrical or asymmetrical with respect to the cross sectional plane, passing
    to
    25

    -- before
    600634
    through the axis of rotation of the coupling, the supporting surfaces. Each drive cam can contact its side surfaces with both radially directed walls of the aperture of the coupling half or with one of them. The drive cam can be made with at least one additional support surface 1 1 in contact with the mating line 12 of the cylindrical and radial sections of the half-coupling hole. One of the additional cam cam surfaces can be made in one piece with the main cam surface. The mating line 13 of the additional support surface and the side surface of the cam is located closer to the axis of symmetry of the coupling than the mating line of the cylindrical and radial sections of the aperture of the coupling half.
    The depth of the stop groove 8 of the half-coupling 1 is made longer than the radially directed wall of the opening 7 of the half-coupling 2. The driver cam 3 can be made with at least one additional supporting surface 14 in contact with the inner cylindrical surface of the sleeve.
    The clutch works as follows.
    Torque is transmitted from coupling half 1 to coupling half 2 through cams 3. When the coupling rotates in the direction indicated by the arrow in Fig. 2, when overloaded, the cam 3 rotates together with the pivoting element 4 in this direction and is adjacent to the interface 12 of the cylindrical and radial sections The openings 7 of the half coupling 2. Relying on the mating line 12, the cam 3 moves radially inward and pivots even more, the exit from the locking groove 8. There can be a gap between the upper portion of the cam 3 and the bottom of the locking groove 8.
    Upon further rotation of the cam line 13 of the conjugation of an additional support surface 11 and the side surface of cam 3 contacts the inner surface 15 of the coupling half 1, reinforcing the cam preload radially inward, which ensures the withdrawal of the cam 3 from the locking groove and complete disengagement of the coupling halves 1 and 2. Only when lowered the speed of the cam 3 under the action of the spring
    thirty
    35
    45
    50
    55
    returns to its original position, coupling takes place.
    When making a cam with symmetrically arranged support surfaces 5 and 6, the torque is limited by means of controls or a dynamic connection between two support surfaces II (Fig. 5), which are less inclined than the support surfaces 5 and 6 , and the interface 12 of the cylindrical and radial sections of the aperture of the half-coupling 2. Between the main 5 and 6 and the additional 11 supporting surfaces, with this design, there are transition sections 16 and 17,
    A clutch with asymmetrical cam face surfaces can transmit higher torques than symmetrical ones. Making the locking groove 8 with a depth greater than the length of the radially directed wall of the opening 7 provides the following principle. In the event of an overload in such an arrangement, the cam 3 is first radially moved, and then rotated along with the rotary element 4, which can only be rotated when the side surface of the cam 3 is disengaged from the radial portion of the opening 7 of the half-coupling 2. The cams 3 exit out of engagement. Removing the cams from engagement with their subsequent rotation significantly reduces wear and shock load, with their subsequent engagement with the coupling half 1 after reducing the number of revolutions.
    With different execution of the cam bearing surfaces, the lengths of their side surfaces are also different. The additional bearing surfaces and the side surfaces of the cams are selected so that, when transmitting the torque, the cam rests on its side surface on the radial portion of the hole 7. The various variants (described) of the cams can be selected depending on the desired characteristics of the clutch and their application.
    权利要求:
    Claims (13)
    [1]
    1. Safety clutch mainly for protection of agricultural machines driven by a tractor from overloading 5 i - m tsshei) in one direction i r-.v :, schshch .. i .-- holding two concentrically horny semi-hems, sdn and: to torch made in the form of a hub, and the other - in the form of a sleeve, connected by a mehd of HG placed in uniform circumferentially radial c, Ј VTM
    Q x one of the colum couplings and the spring loaded cams cnnj iu m i surfaces, which are part of a hundred grooves made in the other side of the groove, which is made up of
    5 that, with the aim of expanding the functionality and reducing shock loads when switching on, i i b bs-tsililtsrrchesk rotary elements with holes for the cam ,,
    0 each radial hole in the coupling is made with a cylindrical section under the rotary sludge, o. which is located the coupler. axis-Ro axis of the coupling, the cams are installed in turn
    5 elements, and the last - in n :. Industrial plots otrsrstpy ppu - couplings,
    [2]
    2, Coupling according to para, 1, o: t and h and y and with the fact that several extension cams are installed successively in one turning element.
    [3]
    3, Clutch according to claim 1. about tl and h,. - Sch with s: the fact that the hole under the cam in the rotary element is made deaf.
    [4]
    4, Coupling according to claim 1, about tl and h and y - y and a so that the hole in each of the rotary element perform through, at the bottom of each radial
    The Q holes of the coupling half have a shaped recess, while in each through hole of the rotary element there are installed two which are spring-loaded between one another in the radial misalignment of a spring cam, the support surfaces of one of which are in contact with the surfaces of the wedge-shaped groove, i
    0 5. Coupling according to paragraphs. 3 and 4, that is, that the anchor cam is made symmetrically with respect to the cross-sectional cross section passing through the axis of rotation of the coupling,
    [5]
    5 bearing surfaces.
    [6]
    6. Kufta on PP. 1 and 4, about tl and h a «y y and a so. that the bridge is made with supporting altitudes located asymmetrically
    five
    eleven
    relative to the plane passing through the axis of the coupling.
    [7]
    7. Coupling pop.1, distinguishing rani and the fact that each driver cam contacts side surfaces with radially directed walls of the half-coupling hole.
    [8]
    8. The coupling according to claim 1, characterized in that each driver cam contacts the side surface with one of the radially directed walls of the aperture.
    [9]
    9. The coupling according to claim 1 is distinguished by the fact that the driver cam is made with at least one additional supporting surface in contact with the connecting line of the cylindrical and radial sections of the aft of the half-coupling.
    [10]
    10. Mufta popp.1 and 9, about t l and
    One of the additional supporting surfaces
    7 3 A
    1
    0
    The cam is made in one piece with the main bearing surface.
    [11]
    11. Coupling according to claims 1, 9 and 10, of which is the fact that the interface line of the additional support surface and the side surface of the cam is located closer to the axis of symmetry of the coupling than the interface line of the cylindrical and radial plots hole coupling half.
    [12]
    12. The coupling according to claims 1 and 10, distinguished by the fact that the depth value of the stop groove of one of the coupling half is greater than the length of the radially directed wall of the opening of the other coupling half.
    [13]
    13. The clutch according to claims 1 and 10, about tl and - so that the flood cam is made with at least one additional supporting surface in contact with the inner cylindrical surface of the sleeve.
    U4 I
    / 2
    go
    it yuz0u .S
    / 6 5
    6 J7.
    FIG. 6
    g
    /four
    / J
    01 / .7
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1560063A3|1990-04-23|Safety clutch
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    CA1177819A|1984-11-13|Articulated coupling
    SU1457818A3|1989-02-07|Rectractable lock for coupling two shafts
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    US3977212A|1976-08-31|Flexible coupling
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    EP0542500B1|1996-05-08|Transmission gear retainer
    SU450042A1|1974-11-15|Safety coupling
    SU1268845A1|1986-11-07|Clutch
    SU1723387A1|1992-03-30|Connection of shafts
    GB2174477A|1986-11-05|Homokinetic joint, in particular for a vehicle transmission
    SU1383032A1|1988-03-23|Elastic expanding coupling
    SU1739077A1|1992-06-07|Coaxial shaft joint
    SU1518585A1|1989-10-30|Jaw clutch
    SU376610A1|1973-04-05|CABLE CLUTCH
    SU591638A1|1978-02-05|Ball-type slip coupling
    同族专利:
    公开号 | 公开日
    CN1005744B|1989-11-08|
    CN87107008A|1988-06-01|
    US4802326A|1989-02-07|
    JPH034771B2|1991-01-23|
    DE3635163A1|1988-05-05|
    JPS63176825A|1988-07-21|
    FR2605371A1|1988-04-22|
    IT8707109V0|1987-10-06|
    ES2008237A6|1989-07-16|
    IT1221201B|1990-06-21|
    DE3635163C2|1988-07-28|
    IT8705231D0|1987-10-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1048749B|1959-06-25|Lohmar Bernhard Walterscheid-Muller und Kurt Schroter, Herkenrath bei Ber giKch Gladbach|Overload clutch with a star-shaped arrangement of elastically trimmed drivers, especially for agricultural machinery|
    US1498279A|1924-06-17|hulett |
    US2157574A|1937-11-19|1939-05-09|William M Siesel|Torque release wrench|
    US2738847A|1952-11-14|1956-03-20|Int Harvester Co|Overload release for implement with disconnection of tractor clutch|
    DE1163613B|1954-01-30|1964-02-20|Kurt Schroeter|PTO shaft with overload clutch|
    US2909047A|1956-06-29|1959-10-20|Walterscheid-Muller Bernhard|Overload clutch|
    US2930212A|1957-01-05|1960-03-29|Jean Walterscheid Maschinenfab|Overload clutch with braking mechanism|
    US2902864A|1958-01-02|1959-09-08|Bendix Aviat Corp|Engine starter drives|
    DE1112351B|1958-09-08|1961-08-03|Kurt Schroeter|Overload clutch, especially for cardan shafts|
    GB1447482A|1972-05-26|1976-08-25|Gib Precision Ltd|Overload clutch|
    FR2191657A5|1972-07-06|1974-02-01|Colrins Et Toutnadre|
    NL7701445A|1977-02-11|1978-08-15|Lely Nv C Van Der|TRACTOR.|
    DE2827948C3|1978-06-26|1981-02-19|Jean Walterscheid Gmbh, 5204 Lohmar|Release clutch|
    JPS6026339B2|1979-08-23|1985-06-22|Matsushita Electric Ind Co Ltd|
    DE2936755C3|1979-09-12|1982-04-08|Jean Walterscheid Gmbh, 5204 Lohmar|Overload clutch|
    DE3012783C2|1980-04-02|1982-03-18|Jean Walterscheid Gmbh, 5204 Lohmar|Release clutch|
    DE3047891C2|1980-12-19|1982-09-02|Jean Walterscheid Gmbh, 5204 Lohmar|One-way clutch|
    DE3230817C2|1982-08-19|1985-05-09|Jean Walterscheid Gmbh, 5204 Lohmar|Safety ratchet clutch|
    JPH0313626Y2|1983-07-30|1991-03-28|
    US4653623A|1985-07-18|1987-03-31|Deere & Company|Snubber mechanism for ratchet-type slip clutch|US4969301A|1989-06-14|1990-11-13|Aec-Able Engineering Company, Inc.|Relatchable launch restraint mechanism for deployable booms|
    US5198307A|1990-12-21|1993-03-30|N. V. Bekaert S.A.|Steel strip and method of making|
    DE4137829C2|1991-11-16|1995-12-21|Walterscheid Gmbh Gkn|Torque limiting clutch|
    DE4404866A1|1994-02-16|1995-07-20|Gaz Gruender Und Anwendungszen|Drive overload=protection system|
    DE4440248A1|1994-11-11|1996-05-15|Geiger Gerhard Gmbh & Co|Independently operating clutch mechanism|
    DE4441218C2|1994-11-19|1998-07-09|Walterscheid Gmbh Gkn|Torque limiting clutch or freewheel|
    CN1062343C|1997-05-28|2001-02-21|陈毅斌|Reducer with device for overloading automatic protection|
    FR2797003B1|1998-11-19|2001-11-30|Valeo|ORDER FOR COUPLING MEMBER|
    DE10151162C2|2001-10-19|2003-10-02|Walterscheid Gmbh Gkn|Torque limiting clutch|
    US20040127294A1|2002-12-25|2004-07-01|Takahiro Ohta|Power transmission|
    US7661329B2|2005-05-06|2010-02-16|Conntechnical Industries, Inc.|Pawl drive for coupling torque between two rotatable elements|
    FR2889276B1|2005-07-29|2007-11-02|France Reducteurs Sas Soc Par|TRANSMISSION FOR A ROLLING MACHINE, IN PARTICULAR A WALKING CONDUCTOR AND EQUIPPED WITH SUCH A TRANSMISSION|
    GB0524604D0|2005-12-02|2006-01-11|Owen Mumford Ltd|Injection method and apparatus|
    DE102006027078A1|2006-06-10|2007-12-20|Maschinenfabrik Kemper Gmbh & Co. Kg|crop receiver|
    JP2008025629A|2006-07-18|2008-02-07|Toyota Motor Corp|Power transmission apparatus|
    KR100752110B1|2006-07-27|2007-08-24|노틸러스효성 주식회사|Conveyor roller|
    DE102008004128B4|2008-01-11|2021-01-14|Joyson Safety Systems Germany Gmbh|Belt retractor|
    DK177273B1|2008-02-11|2012-09-10|Hh Patent As|Clutch|
    ITAT20080003A1|2008-05-30|2008-08-29|Cesare Padovan|SAFETY JOINT FOR TRANSMISSION OF THE ROTARY MOTORCYCLE.|
    AT520889T|2008-06-20|2011-09-15|Walterscheid Gmbh Gkn|CLUTCH FOR TORQUE LIMITATION|
    CN101871492A|2009-04-27|2010-10-27|丁文军|Clutch|
    DE102010031310A1|2010-07-14|2012-01-19|Robert Bosch Gmbh|Force limiting device for a vehicle seat|
    CN103603778B|2013-08-06|2018-08-24|厦门南超机械有限公司|A kind of automatic speed-limiting clutch|
    CN104718899B|2013-12-23|2017-01-11|江苏江淮动力股份有限公司|Blocking protector for header|
    FR3031150B1|2014-12-26|2018-05-11|Compagnie Plastic Omnium|CLUTCH MEMBER FOR RETRACTABLE AERODYNAMIC SHUTTER OF MOTOR VEHICLE|
    DE102017114612A1|2017-06-30|2019-01-03|Schaeffler Technologies AG & Co. KG|torsional vibration dampers|
    CN107654531A|2017-11-07|2018-02-02|陈桂音|A kind of energy-saving torque limiter for recovering connection according to moment of torsion|
    DE102019217298A1|2019-11-08|2021-05-12|Deere & Company|Drive arrangement for an agricultural implement with mechanical overload clutch and automatic adjustment of the switch-off torque|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19863635163|DE3635163C2|1986-10-16|1986-10-16|
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