• 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:
    Measuring apparatus for quickly checking the damping coefficient of torsion-vibration dampers filled with a viscous liquid and being provided with a swing ring. The basic principle relates to the recognition that there is a well measurable, numerically characterizable relation between the damping coefficient of a damper of a given nominal geometry and the number of vibrations of the freely oscillating system. The apparatus comprises three main units, such as at least one torsional-vibrating system, at least one mechanism producing the free oscillation, and an electronic unit. Each unit is disclosed including optional as well as alternative detail solutions thereof.
    公开号:SU895296A3
    申请号:SU782478053D
    申请日:1978-03-24
    公开日:1981-12-30
    发明作者:Сабо Имре；Надь Корнел；Финта Чаба
    申请人:Мадьяр Вагон-Еш Гепдьяр (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to a measuring technique and can be used in mechanical engineering.
    A stand is known for controlling the damping factor of a damper of torsional vibrations, including a body filled with liquid and a ring freely moving therein, containing an elastic element, a rotating disk associated with it, on which a damper is mounted, a mechanism for twisting the elastic element acting on the rotary disk, the processing and control unit, the sensing element interacting with the elastic element and transmitting electrical oscillations to the processing and control unit 1-li
    The disadvantage of this stand is the low speed and reliability of the control due to the time spent on establishing thermal equilibrium of the quencher.
    The aim of the invention is to increase the speed and reliability of the control.
    This goal is achieved by the fact that the elastic element is a torsion bar, the torsion twist mechanism is made in the form of a roller interacting with a rotary disk, the stand is equipped with a one-way free-wheel clutch, one of which is connected to the roller by means of a shaft and installed on the latter with the possibility displacement along it and is spring-loaded in the direction of displacement, and the second is rotatably and displaceable on the same shaft by a pneumatic cylinder, which is connected with the second coupling half and ravl emym monitor and control unit comprising a control unit and two chains, one of which consists of a serially connected amplifier, comparator, and counter indicator, and the second - from the series-connected generator having an input coupled to the output of the comparator, comparator unit connected to the second
    25 input with the second output of the counter and 38 third input with the second input of the counter and one of the outputs of the control unit and the indicator, the second output of the control unit is connected to the pneumatic cylinder, its input is connected to the starting element of the control unit, and the amplifier input is connected to the sensitive one element. FIG. 1 shows schematically a stand for controlling the damping factor of the damper of torsional vibrations in FIG. 2 - possibility of installing an additional disk to adjust the system of torsional vibrations; in fig. 3 - free oscillation function; in fig. k is a function of the relationship between the damping decrement and the amplitude of the oscillation in FIG. 5 - the function of the relationship between the damping decrement и and the number of oscillations of the section. The stand for controlling the damping factor of the damper of the torsional oscillations includes a housing 1 filled with liquid 2 and a ring 3 freely moving in it. The stand contains an elastic element k, a rotary disk 6 mounted on a sleeve 5 and mounted on a sleeve 5, on which a damper is installed, a twist mechanism (in the form of a roller 7), an elastic element acting on the rotary disk 6, a processing and control unit 8, a powerful element 9 interacting with an elastic element and transmitting electrical oscillations to the processing and control unit. The elastic element I is a torsion, the twist mechanism is made in the form of a roller 7 interacting with a rotary disk 6, the stand is equipped with a one-way free-running clutch, one of the coupling halves 10 which is connected to the roller 7 by means of a shaft 1 1 and mounted on the last the ability to move along it and is spring-loaded in the direction of movement, and the second coupling half 12 - with the possibility of rotation and movement on the same shaft 11, pneumatic cylinder 13, kinematically connected with the second coupling half 12 and controlled unit 8 of the control and control unit including control unit 1 and two circuits, one of which consists of successively connected amplifier 15, comparator 16, counter 17 and indicator 18, and the second from series generator 19, whose input is connected to the output of comparator 16, block 20 A second input connected to the second output of the counter 17 and the third input to the second output of the counter 17 and one of the outputs of the control unit 1 and the indicator 21, the second output of the control unit 14 is connected to the pneumatic cylinder 13, its input to the starting element 22 of the unit 1i control Alenie, and the input of the amplifier 15 is connected to the sensitive element 9. The stand works as follows. To the rotary disk 6 crepe t damper. By pressing the trigger element 22, air is opened to the pneumatic cylinder 13. At the same time, the counter 17 by the control unit 14 is set to the zero position. Through the power transmission chain, in which the pneumatic cylinder 13 enters, the half coupling 10, 12, the shaft 11 and the roller 7, the disk 6 and the elastic element k are rotated. The cam of the eccentric disk (not shown) begins to slide along the rotating roller 7, and when the dead point is reached, the moment of force acting on the shaft 11 transmitted from roller 7 to the cam of the eccentric disk causes the cam to reverse the direction of motion. Coupling half couplings 10, 12 designed to transfer the moment in one direction only, overcoming spring pressure, move away from each other, and the cam of the eccentric disk no longer touches roller 7, after which the damper fixed on the elastic element 4 makes free oscillations . A signal proportional to the oscillations comes from sensing element 9 through amplifier 15 to comparator 16. If the measured signal exceeds the set amplitude level, comparator 16 gives one pulse. The counter 17 reads and remembers the pulse. Result counts of half-periods of oscillations are displayed on the indicator. 18. If the signal level exceeds the specified value, then the pulse from another output of the comparator 16 starts the generator 19, which gives the optimal reference time, the signal from the output of which is fed to the input of the comparator unit 20. After the passage of the optimal reference time, which corresponds to the actual duration of the oscillation period, the counter 17 also receives a pulse to the input of the comparator unit 20, which is opened depending on the sequence of receipt of both signals
    After opening the comparison unit 20, the signal passes to the indicator 21, where the actual duration of the reference time is displayed.
    The main advantage of the invention is to increase the speed and reliability of measurements.
    权利要求:
    Claims (1)
    [1]
    1. USSR author's certificate N 395717, cl. G 01 C 19/0, 1971 (prototype).
    opt me
    UDL7 “DG
    5
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    同族专利:
    公开号 | 公开日
    GB1581754A|1980-12-17|
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    DE2718790A1|1977-11-17|
    DD129933A1|1978-02-15|
    US4166377A|1979-09-04|
    HU172832B|1978-12-28|
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    CS254301B2|1988-01-15|
    DE2718790B2|1981-01-22|
    DE2718790C3|1981-10-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1891613A|1930-10-23|1932-12-20|Ride O Graph Corp|Method of and apparatus for testing the riding qualities of vehicles|
    US3164003A|1960-02-19|1965-01-05|Bear Mfg Co|Portable shock absorber tester|
    US3105381A|1960-02-24|1963-10-01|Siderurgie Fse Inst Rech|Arrangement for measuring the damping of the oscillations of a mechanical system|
    BE786393A|1971-07-19|1973-01-18|Caterpillar Tractor Co|MACHINE FOR TESTING SHOCK ABSORBERS|
    US3955400A|1973-08-27|1976-05-11|Caterpillar Tractor Co.|Viscous damper and method for determining the rotational position of a weight thereof|DE3810194C1|1988-03-25|1989-08-24|Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De|
    DE3939695C1|1989-12-01|1991-05-29|Fa. Carl Freudenberg, 6940 Weinheim, De|
    DE4129599C2|1991-09-06|1994-06-01|Daimler Benz Ag|Procedure for the functional test of a torsional vibration damper|
    JP3227000B2|1993-01-21|2001-11-12|株式会社日立製作所|Motor speed control device|
    DE4439997C1|1994-11-09|1996-06-05|Fichtel & Sachs Ag|Automobile shock absorber damping characteristics testing device|
    US5941133A|1996-04-19|1999-08-24|Eti Technologies Inc.|Torsional and translational vibration removing device|
    DE19860471C2|1998-12-28|2000-12-07|Bosch Gmbh Robert|Process for quality inspection of a workpiece|
    US7032453B2|2001-09-12|2006-04-25|Siemens Aktiengesellschaft|Method and apparatus for the diagnosis of natural vibrations in a mechatronic system|
    US7021940B2|2002-11-21|2006-04-04|Northern Sydney Area Health Service|Patient simulator manikin and system|
    FR2938061B1|2008-11-05|2010-12-17|Valeo Embrayages|METHOD AND DEVICE FOR MEASURING THE CHARACTERISTICS OF A TORSION DAMPER.|
    US10024773B1|2017-01-13|2018-07-17|The Boeing Company|System and method for loading a test asset|
    PL233130B1|2017-09-19|2019-09-30|Marek Lecki|Test stand for preparation of characteristics of low sized torsional vibration dampers|
    RU184676U1|2018-07-10|2018-11-02|Федеральное государственное автономное образовательное учреждение высшего образования "Балтийский федеральный университет имени Иммануила Канта" |Device for determining the damping coefficient of bulk materials and liquids|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    HU76MA00002765A|HU172832B|1976-04-27|1976-04-27|Measuring method and apparatus for checking damping factor of moving ring torsional-vibration dampers filled with viscous fluid|
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