SU1692668A1 - Generator of polyharmonic oscillations - Google Patents

Abstract

The invention relates to vibration technology and can be used in devices for the excitation of polyharmonic vibrations, as well as in analog mechanical devices in the study of the dynamic characteristics of systems. The aim of the invention is to increase reliability by increasing the rigidity of the kinematic connection between the sources of oscillations located successively (L o o 10 o o 00

Description

tel. The generator contains a master 5 and slave 16 cranks connected to the wings 6 and 17 - sources of oscillations in the crank-rocker actuators, as well as additional crank-rocker actuators consisting of cranks 5 and 16,

additional wings 9 and guides 8 and kinematically connecting each subsequent crank with the previous one. The total number of cranks and scenes-sources of oscillations is equal to the number of summable oscillations. 5 il.

The invention relates to vibration technology and can be used in devices for the excitation of polyharmonic mechanical vibrations, for example, in analog mechanical devices in the study of the dynamic characteristics of systems.

The purpose of the invention is to increase reliability by increasing the rigidity of the kinematic coupling between oscillatory sources arranged in series.

Figure 1 shows the generator, general view and kinematic scheme; FIG. 2 is a view A of FIG. one; FIG. 3, view B in FIG. one; nafig.4 - node I in figure 1; FIG. 2 shows a projection of an oscillating generator node, axonometrics.

The generator includes a housing 1, an electric motor 2 with an adjustable rotational speed, connected through a reducer 3 to a driving crank shaft A, on which the driving crank 5 is rigidly fixed, connected to link 6, a source of oscillations in a crank link actuator. Girder 6 is located in guides 7. The finger of the driving crank 5 is connected to an additional q rail 8, in which an additional rocker 9 is mounted, combined with crank 5 and an additional rail 8, and a crank-gantry drive and rigidly fixed on the shaft 10, mounted through bearings 11 on the second floor of the link 6. On the same shaft the drive gear 12 of the driven crank gear is rigidly fixed. The driven gear 13 of the driven gear of the driven crank is rigidly fixed on the driven crank shaft 14, mounted via bearings 15 and on the second floor of the link 6. The driven crank 16 is also rigidly fixed on the driven crank shaft 14 connected to the link 17 - a source of oscillation in the crank -kulisny drive The total number of cranks and wings of the oscillation sources is equal to the number of summable vibrations

generator is as follows

zom.

When the electric motor 2 is turned on, the rotation through the gearbox 3 is transmitted to the driving crank shaft 4 and the driving crank 5. When the crank 5 interacts with the slide 6, the latter moves in the guides 7 according to the law

x A sin w t + 1,

where A is the oscillation amplitude (crank radius); angular rotational speed of the crank; - initial phase. The torque from the driving crank 5 is transmitted through an additional crank-rocker actuator consisting of the driving crank 5, the additional link 9 and the additional guide 8 to the driving 12 and the driven 13 gears with a gear ratio of KL. the driven crank shaft 14 with the driven crank 16 fixed on it, the latter will rotate at a speed of one Ki, and the rocker 17 associated with it will move according to the law

X A (sin W t - f Sin W 2 t)

those. the addition of vibrations occurs.

Similarly, the rotation is transmitted to the cranks located above and the oscillation of the linkage associated with them occurs. The angular rotational speeds of the cranks and, therefore, the frequencies of the summable vibrations are selected using the dimensions of the gears of the gears.

Claims (1)

The claims of the polyharmonic oscillator, comprising a drive, a housing, driving and driven crankshafts with cranks connected in series, guides mounted in the housing, mounted in them with the possibility of reciprocating movement of the wings with grooves for accommodating the fingers of the cranks and gears, the driven shaft of each of which is associated with the subsequent crank, and the drive shaft is kinematically connected with the previous crank, which distinguishes and so that, in order to increase the reliability established on the previous curvature, the kinematic connection is rotatably connected in the form of an additional link, and on the additional link rigidly connected to the drive shaft. the possibility of reciprocating transmission and additional direction of the 10th movement along its axis. Vidb ft BtiffA Fie.2 Fig.Z I one Figm i6 77