• 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 transmission of a large excavator is provided with damping systems to smooth out periodic load variation during operation. Flexibly mounted gear casings for epicyclic gears have damping rings (8) connected by tangential springs (9) to the gear casing (3). Additionally, individual gear wheels are damped by rotating weights with a torsional spring coupling to the wheel, or by a system eel, or by a system of centrifugal weights. The spring rates, masses and moments of inertia area chosen to match the main torque variation period.
    公开号:SU924284A1
    申请号:SU787770214
    申请日:1978-05-31
    公开日:1982-04-30
    发明作者:Khorst Buge；Ryudiger Kluge；Gyunter Kunad；Feliks Leushner；Khorst Rejnel；Khasso Zommer；Arno Vettsel
    申请人:Inst Fyur Ferdertekhnik Inopre；
    IPC主号:
    专利说明:

    The invention concerns a drive for machines and assemblies, in particular for - quarry, giant excavators, in which the drive body is connected to the working body by means of elastic elements. 5 cops, mainly through the station ”. paired or planetary gears with nodes, elastically installed in the frame of the machine or unit.
    In the drives of machines and aggregates, as a result of the action of the masses, periodically operating gears, and periodically varying resistances to the working body and movement, in general, periodically varying forces and moments occur. So, for example, in a multi-bucket chain excavator, the unevenness of the gear ratio between the bucket chain and the drive sprocket, as well as the action of the masses and periodically taking resistance to scooping and movement, lead to the appearance of periodically varying moments in the drive mechanism. Periodically changing moments also occur in
    EXCAVATORS-GIANTS
    2
    water of rotary excavators due to the periodic capture of the material being excavated by scooping bodies and changing resistances to scooping and movement. These periodically varying loads are transmitted through the drive elements to the drive motor and the frame of the machine or unit. They cause torsional vibrations in the drive mechanism and the associated additional dynamic forces and moments that shorten the life of the drive elements and limit their power.
    To reduce the dynamic load of the drives of the type described, solutions are known that are based on the pr-. oscillation damping by matching the constant spring stiffness, mass moments and mass inertia moments of individual drive elements with the circular frequency of a periodically varying component of the drive load.
    To drive a multi-bucket chain excavator containing planetar 3 92 ^ + 28¼ 4
    It is proposed to support the transmission casing by selecting the elastic spring of the support spring and the moment of inertia of the mass 5 of the transmission casing so that the natural circular frequency of this drive subsystem is approximately equal to the circular frequency of the periodically varying component. The youngest moment of load on the shaft of the drive drum. This solution is generally associated with very high costs of material required to implement the transmission inertia mass 15, casing or require very soft support housing 'in the transmission frame of the excavator, the performance of which is associated with large design costs, as the' reaction acts simultaneously support 20 Tian torque due to the nominal torque generated by the drive.
    As an improvement on the same basic principle, it was also proposed (OE-05 2260 176) For 25
    reduce the mass of the transmission shell while maintaining the moment of inertia of the mass; associate with the casing additional ground mass through an additional gear so that the angular velocity of the ground mass is greater than the angular velocity of the oscillating transmission casing mounted on an elastic support. This solution has the disadvantage that the additional transmission due to the kinematically-conditioned geometry of its elements (the crown of toothed wheels) and sound design of backlash, which together lead to the effect of a nonlinear spring with backlash, greatly limits or completely eliminates damping.
    For drives with stationary gears, it is proposed to install 4; the transmission housing in the housing can be rotated and to provide a torsionally elastic support in the housing with the help of additional gear wheels and springs (5 ϋ - Я5 336 452). In addition, 51 there is a known solution for a drive with a multi-stage stationary transmission, in which a differential gear is installed between the last and penultimate gear stages, with 5
    the third shaft of which is connected linear and non-linear spring, which rests in the machine body 107 739).
    Both solutions are associated with high costs for additional kinematic links (.additional gears). Required to realize the effect of full or partial damping of oscillations. In addition, they have the disadvantage that the additionally installed elastic elements simultaneously perceive the reactive moment of transmission resulting from the transmitted rated drive torque. This disadvantage does not allow the use of the solutions described above for the implementation of powerful drives, such as, for example, in giant mining excavators with the help of previously known technical means.
    The purpose of the invention is to improve the reliability of drive systems of this kind and at the same time provide a simpler and more economical design of the drive and frame of the machine,
    The basis of the invention is to efficiently provide a simple and associated with the use of as small additional masses as possible, damping of periodically changing component of external load of machine drives, in particular, giant mining excavators. ..at
    This goal is achieved by the fact that in the drive system placed dampers, made in the form of single-mass or multi-mass dampers of torsional vibrations or in the form of pendulum dampers, which are mechanically connected only with moving elements or drive units, with constant springs and mass moments or moments of mass inertia calculated in such a way that the natural circular frequency of the vibration damper is equal to or approximately equal to the circular frequency of the dominant harmonic component periodically changing I load.
    The vibration damper in the form of an annular mass is located around the stationary or planetary gear drive resiliently resting on the frame of the casing, guided by the casing into the rolling or sliding guides and rests against the casing through the springs. With each satellite of the planetary gear, an oscillation damper is associated. It is made in the form of a vibration damper or in the form of a pendulum damper.
    In addition, with any shaft of the system, preferably with output wa5 924284 6
    scrap, which is associated with the working body, is associated oscillation damper, made in the form of a torsional vibration damper or in the form of a pendulum damper. five
    Due to the location of absorbers. oscillations in the auxiliary, not fulfilling the task of transferring the working forces of the system’s chain, the constant stiffnesses of its springs, mass and moments of mass inertia are small compared to the known solutions, as the elements of the oscillation damper do not participate in the transmission of the drive’s usable power or , 5 by the lifting force of the moment of support.
    FIG. 1 shows the kinematic diagram of the drive "front view"; in Fig. 2 - the same, side view; in Fig. 3 ~ 'a simplified model of the oscillation of the drive · 20 in FIG. 4 - planetary gear with torsional vibration damper on the satellites; in fig. 5 - planetary gear with pendulum dampers on the satellites, side view; in fig. 6 - 25
    The same, front view, FIG. 7 ~ location of the torsional vibration damper on the output shaft (sprocket drive shaft) of the planetary gear; in fig. 8 - location of pendulum extinguishers on the output shaft (the shaft of the drive sprocket).
    The drive of a bucket excavator consists of a drive engine 1, opening that gear 2, a planetary gear 1 3 $ and a shaft of a driving drum 11 with an asterisk 12 coupled with a bucket chain 13. The planetary gear includes a solar wheel 4, satellites 5, Lena 40 are installed on the cross member 7 and the wheel 7 with the teeth of the internal gearing. The casing 3 of the planetary gear rigidly connected to the wheel 6 'rests on the frame of the excavator through an elastic element .. 10.
    Around the casing 3 around the ring is placed the extinguishing mass 8, which rests on the transmission casing in the sliding or rolling guides 9 by means of elastic elements 14.
    Extinguishing mass 8 in combination with elastic elements 14 forms. Vibration damper, in which. as follows During a periodically varying load moment on the shaft of the drive sprocket 11, forced oscillations occur with amplitudes in antiphase so that the periodically varying component of the load moment is quenched either partially or completely.
    In another embodiment, with each satellite 5 of the planetary transmission through a torsion spring 15 'is connected by one suppressive mass 8, and the springs play the role of vibration dampers. _
    It is possible to imagine / also other use cases in which the pendulum dampers 16 are installed on the satellites 5, preferably with a bifilar suspension, which, together with the satellites, act as oscillation dampers with a variable frequency of damping. In the following embodiment, the oscillation damper in the form of a torsional vibration damper 8 and 15 or a pendulum damper 16 is placed directly on the shaft of the drive drum.
    权利要求:
    Claims (4)
    [1]
    Claim
    1. Drive for machines with periodically varying load, in particular, for career giant excavators, in which the drive engine and the working body are connected by elastic elements, preferably through stationary or planetary gears, with nodes having an elastic support in the frame of the machine or unit, different by the fact that in the drive system there are oscillation dampers, made in the form of single-mass or multi-mass torsional vibration dampers or in the form of pendulum dampers, which are mechanically connected only with mobile elements or drive units and have their own frequency equal to or approximately equal to the 'frequency of the dominant harmonic component of a periodically varying load.
    [2]
    2. The actuator according to claim 1, that is, that the vibration damper in the form of an annular suppressant mass is located around the stationary or planetary gear drive elastically resting on the housing frame, is guided by it in the sliding or rolling guides and rests on him through the elastic elements.
    [3]
    3. The drive pop. 1, distinguished by the fact that each satellite of the planetary gear is associated with an oscillation damper, made in vi7 924284 8
    torsional vibration damper or in the form of a pendulum damper. ,
    [4]
    4. Drive according to π.Ι, οτ l and h ay with the fact that with any transmission shaft, preferably with an output shaft coupled to the working body, an oscillation damper, made in the form of a torsional vibration damper or in the form of a pendulum extinguish
    It is recognized as an invention according to the results of the examination carried out by the Office for the Invention of the German Democratic Republic.
    924284
    < UG 9
    924284
    FIG. eight
    类似技术:
    公开号 | 公开日 | 专利标题
    ES2113270A1|1998-04-16|Torsional vibration damper with a planetary gearset
    US7464800B2|2008-12-16|Torisonal vibration damper of a rotating shaft
    KR19990023817A|1999-03-25|Torsional Vibration Damper on Coupling Coupling with Planetary Gear
    SU924284A1|1982-04-30|Drive for machines with cyclically fluctuating load in particular for giant excavators
    US8376653B2|2013-02-19|Self-propelled road construction machine
    CN106015455A|2016-10-12|Torsional vibration damper
    US4440257A|1984-04-03|Vibration-insulating bearing arrangement for a drive unit
    US2371984A|1945-03-20|Means for imposing harmonic torques on shafting
    SU1384345A1|1988-03-30|Pulsed loader
    SU990327A1|1983-01-23|Vibromachine
    SU462946A1|1975-03-05|Elastic centrifugal coupling
    RU2414638C1|2011-03-20|Inertial-pulse rotary drive
    SU914082A1|1982-03-23|Crusher drive
    JP2004239363A|2004-08-26|Rotary damper device with rotatingly deflecting reverse connection means
    JPS5712141A|1982-01-22|Rotation variation absorber of motor cycle engine
    SU683814A1|1979-09-05|Pulsed vibration exciter
    SU136658A1|1960-11-30|Vibro drive for conveyor etc. installations
    SU773342A1|1980-10-23|Tool vibration drive
    SU1245641A1|1986-07-23|Self-propelled vibration road roller
    RU1771823C|1992-10-30|Vibration exciter
    SU1154995A1|1987-01-30|Vibratory pile driver
    SU1239210A1|1986-06-23|Installation for testing transmissions of earth-moving machines
    KR20190107670A|2019-09-20|Torque transmission device
    RU2012800C1|1994-05-15|Working member of heading machine
    SU889140A2|1981-12-15|Pulsed vibroexciter
    同族专利:
    公开号 | 公开日
    DD132515B1|1979-11-28|
    CS261601B1|1989-02-10|
    DE2815760A1|1979-01-25|
    DD132515A1|1978-10-04|
    DE2815760C2|1987-12-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR740766A|1932-06-11|1933-02-01|Anti-vibration device for motors, receivers and transmissions|
    BE435671A|1938-08-02|
    US2348941A|1942-12-05|1944-05-16|Packard Motor Car Co|Vibration damping device|
    DE838973C|1950-03-31|1952-05-15|Kloeckner Humboldt Deutz Ag|Friction clutch|
    DE1987430U|1953-10-02|1968-06-12|Clemens A Voigt 5410 Hohr Grenzhausen|Vehicle engine with dynamic vibration absorber|
    GB1077102A|1964-07-01|1967-07-26|Kins Developments Ltd|Vibration damping means|
    DE2260176C3|1972-12-08|1975-11-06|Gosudarstvennyj Naucno-Issledovatelskij I Projektnyj Institut Ugolnoj Promyslennosti, Kiew |Drive for a bucket chain of an excavator|EP0229013A3|1986-01-09|1989-05-10|Shinko Electric Co. Ltd.|Vibration damping apparatus for pulse motor|
    DE10304558B4|2003-02-05|2012-02-09|Bayerische Motoren Werke Aktiengesellschaft|Torque transmission device with a vibration-reducing device|
    DE102012221854A1|2012-11-29|2014-06-05|Zf Friedrichshafen Ag|Torsional vibration damper for use in drive train of vehicle, has pendulum mass arranged eccentrically on planet wheel such that wheel supported around rotary shaft mounted on support is arranged in form of web in planetary gear|
    DE102013211808B4|2013-06-21|2015-10-22|Schaeffler Technologies AG & Co. KG|Device for damping torsional vibrations in a drive train of a motor vehicle|
    DE102018111721A1|2018-05-16|2019-11-21|Schaeffler Technologies AG & Co. KG|Planet carrier for a planetary gear and planetary gear|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD19984877A|DD132515B1|1977-07-04|1977-07-04|DRIVE FOR MACHINES WITH PERIODICALLY CHANGING LOAD, ESPECIALLY FOR DAY MACHINERY|
    [返回顶部]