WO2006093434A1 - Procede d'excitation par vibrations et dispositif correspondant - Google Patents

Procede d'excitation par vibrations et dispositif correspondant Download PDF

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Publication number
WO2006093434A1
WO2006093434A1 PCT/RU2006/000085 RU2006000085W WO2006093434A1 WO 2006093434 A1 WO2006093434 A1 WO 2006093434A1 RU 2006000085 W RU2006000085 W RU 2006000085W WO 2006093434 A1 WO2006093434 A1 WO 2006093434A1
Authority
WO
WIPO (PCT)
Prior art keywords
unbalances
vibration
axis
unbalance
torque
Prior art date
Application number
PCT/RU2006/000085
Other languages
English (en)
Russian (ru)
Inventor
Anatoly Vasilievich Medvedev
Original Assignee
Doronin, Igor Viktorovich
Ovchenkova, Oksana Anatolievna
Ostankov, Maksim Vladimirovich
Sukhov, Alexandr Ivanovich
Saveliev, Aleksey Olegovich
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Doronin, Igor Viktorovich, Ovchenkova, Oksana Anatolievna, Ostankov, Maksim Vladimirovich, Sukhov, Alexandr Ivanovich, Saveliev, Aleksey Olegovich filed Critical Doronin, Igor Viktorovich
Publication of WO2006093434A1 publication Critical patent/WO2006093434A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
    • B06B1/162—Making use of masses with adjustable amount of eccentricity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
    • B06B1/166—Where the phase-angle of masses mounted on counter-rotating shafts can be varied, e.g. variation of the vibration phase

Definitions

  • the present invention relates to a vibration technique used for the intensification of technological processes by directed inertial vibration. Description of the prior art
  • vibrational excitation intense heat and mass energy exchange occurs, which determines the following process parameters: the process (reaction) time, that is, the duration; conversion rate (conversion) of the process (reaction); uniformity and dispersion of the output product; quality indicators of the output product; - the stability of the process and the reproducibility of its energy-dynamic parameters in the entire volume of the apparatus.
  • a known method of inertial vibrational excitation in which the vibrations arising from the rotation of inertial masses are combined with circular vibrations created using an eccentric [1].
  • the disadvantage of this method is the limited vibration excitation of the processed product, which reduces the intensification of technological processes.
  • the closest in technical essence is the method of implementation of the asymmetric vibrational motion of an oscillatory mechanical system by a centrifugal vibration exciter [2], selected as a prototype.
  • two modes of operation of the oscillatory system are continuously alternating between themselves, one of which is characterized by a change in the frequency of the driving force in the direction of approaching it to the resonant frequency, and in the other, in the direction of moving away from the resonant frequency, and the first mode is switched to the second as soon as the kinetic energy of the oscillatory system becomes greater than the upper setpoint, and the second mode is switched to the first as soon as the kinetic energy becomes less than the lower setpoint.
  • Disadvantage of this method is the structural complexity of the implementation of this method and the limitations of its application for various technological processes.
  • the closest to the structural implementation of the proposed method is a single-shaft directional vibration exciter [3], selected as a prototype for a vibration excitation device.
  • this vibration exciter the shafts of the drive motors are directly connected to the unbalanced shaft, and the unbalances are freely and rigidly mounted on the shaft, interconnected by bevel gears and intermediate bevel gears rigidly attached to them, one part of the latter is mounted on fixed axes in the vibrator housing, and the other on axially movable axes, which are equipped with mechanisms for their translational movement.
  • the disadvantage of this device is the lack of torsional-oscillatory vibrations and the complexity of the design. Description of the invention
  • the objective of the present invention is to provide a vibration excitation method in which two types of vibrations are created simultaneously: longitudinal reciprocating, caused by the formation of a driving directed force and transverse torsional-oscillating, caused by the formation of torque and matching their maximum and minimum values in phase and antiphase modes, which allows you to get vibrations. oscillatory system in three dimensions. This makes it possible to build more efficient technological vibratory bodies and significantly increase the intensity of technological processes.
  • the technical result is achieved by the fact that with the help of unbalances located on different sides relative to the axis of the vibrating rod and rotating relative to the radial axes, two types of oscillations are created in a continuously alternating sequence.
  • the first type of oscillations is reciprocating, which are caused by the action of an alternating driving force directed along the axis of the vibration rod.
  • the second type of oscillation is torsional-oscillatory, due to the action of alternating torque around the axis of the vibration rod.
  • the unbalances in the same initial position on the cycle so that when the unbalances rotate, the maximum value of the driving directed force is achieved at zero the value of the torque, followed by rotation of the cyclic change in the position of the unbalance, which creates the maximum value of torque at zero value of the driving directional force.
  • the third mode is carried out with any number of unbalances by shifting any unbalance by an angle from zero to 360 °.
  • the entire oscillatory system is rotated around the axis of the vibration rod.
  • a vibration excitation device comprising a vibroshaft, a housing with an unbalance holder mounted on it, arranged on bevel gears and kinematically connected by an intermediate gear, while bevel gears with unbalances are located on radial axes, located on different sides relative to the axial vibroshaft, and the pinion gear is kinematically connected to the drive.
  • the unbalance holder is connected to the housing and is additionally kinematically connected to the rotation drive of the oscillatory system.
  • vibrations refers to the reciprocating motion of the vibroshift, which are caused by the action of an alternating driving force directed along the axis of the vibroshock.
  • vibration-rocking oscillations refers to the reciprocating rotational movements of the vibrating rod around its axis, due to the action of alternating torque.
  • vibrational system means a combination of a vibration exciter and a vibration rod equipped with technological bodies in the form of diode panels, screw elements, profile blades, static mixers, and the like elements placed in the product or raw material volume in the form of a pipe, reactor, and the like.
  • FIG. 1 shows a vibration system containing an even number of diametrical axes with unbalances.
  • FIG. 2 shows a vibration system containing one diametric axis with unbalances.
  • FIG. 3 shows diagrams of the values of driving force P and torque
  • FIG. 4 shows diagrams of values of driving force P and torque
  • FIG. 5 shows a table of transient values P and M of the vibration system shown in FIG. 1 for different unbalance positions in the cycle.
  • FIG. 6 shows the design of the vibration exciter
  • FIG. 7 shows the design of the exciter, top view.
  • the method of vibration excitation is carried out using a vibration excitation device, which consists of the following parts (Fig. 6 and 7).
  • Bevel gears are movably mounted on the semiaxes of the holder 3: on the X axis - gears 4, on the Y axis - gears 5, with unbalances 6 fixed to them, all of them are kinematically connected to the intermediate gear 7, movably mounted with the possibility of rotation on the axis of the holder 3 along the axis Z and kinematically rigidly connected to the upper drive wheel 8, rotating from the upper drive 9.
  • the lower drive wheel 2 is kinematically connected to the lower drive 10, which allows the structure to rotate around the Z axis together with the vibroshaft 11.
  • the described construction implemented according to the scheme of FIG. 1 can also be performed according to the circuit of FIG. 2.
  • the position of the unbalances is shown by conventional signs:
  • ⁇ is the position of the unbalances at an angle of rotation of 180 ° relative to the vertical
  • FIG. 4 shows a particular case when gears with unbalances on the same axis are installed on a flat cruciform holder 3 with the same symbols for the positions of unbalances
  • FIG. Figure 3 shows plots of the values of P and M.
  • gears 5 with unbalances are installed in the same position - • as in FIG. 2, but in addition, two gears 4 with unbalances are additionally installed on the X axis, which are rotated in a cycle 90 ° in different directions with respect to the unbalances on the Y axis and are also indicated by - •.
  • FIG. Figure 1 shows that in the initial position of the unbalances - •, two factors act simultaneously: on the Y-axis - the driving force P, and on the X-axis - the torque Mkr. Further alternation of the values of P and Mkr over the cycle are indicated in the table of FIG.
  • FIG. 6 the entire oscillatory system.
  • two kinds of vibration excitation mode can be realized: the first mode is shown in FIG. 2 and FIG. 3, a second mode is shown in FIG. 1 and FIG. 4 with double oscillation frequency.
  • the vibration exciter will work without a double frequency, but with a double driving force P and a double moment Mkr.
  • the proposed design works as follows.
  • the bevel intermediate gear 7 begins to rotate around the Z axis, and with it the gears 4 and 5 around the X and Y axes with unbalances 6 set as shown in FIG. 1.
  • Two types of oscillations occur in alternating order: longitudinal reciprocating and transverse torsional-oscillating.
  • the rotation of the entire oscillatory system is created using the lower drive 10, but sometimes it is possible without a drive, due to autorotation.
  • the proposed method of vibrational excitation and a device for its implementation can be used to intensify various processes of emulsification, pressing, extrusion of polymers and viscoelastic dispersed compositions, squeezing oil, juices, mash, hole punching, drying, screening, as well as during pile and drilling operations.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

L'invention se rapporte à une technique vibratoire d'intensification des processus technologiques au moyen d'un traitement vibratoire dirigé. L'invention vise à créer simultanément deux types d'oscillations, à savoir des oscillations longitudinales en va-et-vient générées par une force de contrainte dirigée et des oscillations de balancement et de rotation générées par un couple de rotation, et à concorder leurs valeurs minimales et maximales en phase et en opposition de phase. Dans cette invention, des balourds (6) qui effectuent des rotations sur les axes radiaux, disposés des côtés opposés par rapport à l'axe d'une tige vibratoire (11), créent deux types d'oscillations dans une séquence qui alterne de façon ininterrompue. Le dispositif d'excitation par vibrations comprend une tige vibratoire (11) et un corps (1) sur lequel sont montés des supports de balourds (3), ménagés sur des engrenages coniques (4, 5) et reliés cinématiquement entre eux par un engrenage intermédiaire (7). Les engrenages coniques avec des balourds sont montés sur des axes radiaux et sont disposés des deux côtés par rapport à la ligne axiale de la tige vibratoire, l'engrenage intermédiaire étant relié cinématiquement à l'entraînement (9).
PCT/RU2006/000085 2005-03-01 2006-02-26 Procede d'excitation par vibrations et dispositif correspondant WO2006093434A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2005105562/28A RU2273529C1 (ru) 2005-03-01 2005-03-01 Способ вибровозбуждения и устройство для его осуществления
RU2005105562 2005-03-01

Publications (1)

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WO (1) WO2006093434A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115826407A (zh) * 2022-11-29 2023-03-21 中国航发沈阳发动机研究所 一种减小鼓筒轴旋转惯性激励的控制方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017114706A1 (fr) * 2015-12-29 2017-07-06 Bracco Suisse Sa Procédé et dispositif de préparation de suspension de microparticules réparties de manière homogène dans un transporteur liquide aqueux

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018290A (en) * 1974-09-04 1977-04-19 Tracto-Technik Paul Schmidt Hydraulically driven vibrator
SU978950A2 (ru) * 1981-02-19 1982-12-07 Брянский Ордена Трудового Красного Знамени Технологический Институт Устройство дл возбуждени крутильных колебаний
DE4118069A1 (de) * 1991-06-01 1992-12-03 Udo Halbrock Vibrator fuer eine vibrationsramme
RU2008101C1 (ru) * 1991-11-20 1994-02-28 Михаил Михайлович Неклюдов Одновальный вибровозбудитель направленного действия
RU2113919C1 (ru) * 1995-06-06 1998-06-27 Красноармейский Научно-Исследовательский Институт Механизации Способ реализации центробежным вибровозбудителем асимметричного вибрационного движения колебательной механической системы

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018290A (en) * 1974-09-04 1977-04-19 Tracto-Technik Paul Schmidt Hydraulically driven vibrator
SU978950A2 (ru) * 1981-02-19 1982-12-07 Брянский Ордена Трудового Красного Знамени Технологический Институт Устройство дл возбуждени крутильных колебаний
DE4118069A1 (de) * 1991-06-01 1992-12-03 Udo Halbrock Vibrator fuer eine vibrationsramme
RU2008101C1 (ru) * 1991-11-20 1994-02-28 Михаил Михайлович Неклюдов Одновальный вибровозбудитель направленного действия
RU2113919C1 (ru) * 1995-06-06 1998-06-27 Красноармейский Научно-Исследовательский Институт Механизации Способ реализации центробежным вибровозбудителем асимметричного вибрационного движения колебательной механической системы

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115826407A (zh) * 2022-11-29 2023-03-21 中国航发沈阳发动机研究所 一种减小鼓筒轴旋转惯性激励的控制方法
CN115826407B (zh) * 2022-11-29 2024-04-09 中国航发沈阳发动机研究所 一种减小鼓筒轴旋转惯性激励的控制方法

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