SU1218207A1 - Torsional vibration damper - Google Patents

Description

t. one

The invention relates to mechanical engineering and is intended for damping torsional vibrations of the shafts in the drives of machines and mechanisms.

The purpose of the invention is to increase the efficiency of damping torsional vibrations, which is achieved by expanding the range of operating frequencies.

The drawing shows a diagram of the damping. Body - torsional vibrations, profile section.

The torsional vibration damper contains a flywheel 3 installed between the leading 1 and the driven 2 shafts with a through hole, having a spline 4 along the length and a screw 5 sections fixed on the driven shaft 2 screw 6, which cooperates with the screw section 5 of the hole, and the slotted section of the hole it is designed to interact with the Spitz-type section 7 of the drive shaft 1, the sensor 8 and the additional sensor 9 of the oscillations mounted on the driven shaft 2, the control device 10, the stationary electromagnets 11, supporting masts 12, the anovlennye on the flywheel 3, the plug 13j interacting with thrust bearings 12 and rod 14, one end of which is rigidly connected to plugs 13, while others - with serdechni72

The electrodes of the electromagnets 11 are 15, and the axes of the tg 14 are parallel to the rotation of the flywheel 3.

The damper also contains axis 16,

mounted in housing 17 parallel to shafts 1 and 2, and springs 18, plugs 13 are provided with holes (not indicated) through which axles 16 pass.

Torsional vibration damper works as follows.

When the load on the shaft changes, a difference in the angular velocities between the drive 1 and the driven 2 shafts occurs, which leads to winding the flywheel 3 on the screw 6 and deforming the springs 18 by moving the forks 13 along the axis 16. Thus, the weakened torsional vibrations

transmitted to the driven shaft 2. The signal, proportional to the magnitude of the torsional vibrations, from the sensor 8 and the additional sensor 9 is fed to the control device 10, which, applying

the current to the windings of the electromagnets 11, changes the rigidity between the flywheel 3 and the housing 17, setting the damper to the mode of dynadic quenching. Torsional vibration damper

effectively suppresses oscillations in a wide range of disturbance frequencies, which makes it possible to increase the reliability of the shafts of machines and mechanisms. ,

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Compiler A.Andreev, Editor L.Avramenko Tehred Z.Kastelevich Proofreader M.Samborska

Order 1120/47 Circulation 880 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch 1ShP Patent, Uzhgorod, Proektna St., 4

Claims (1)

TORQUE EXTINGUISHER, containing intended for '; installation between the drive and driven shafts a flywheel with a through hole having a spline and screw sections along the length, intended for rigidly fixing a screw on the driven shaft that interacts with the screw section of the hole, and a spline section of the hole is designed to interact with the splined section of the drive shaft, the vibration sensor and attached to it, the control device and electromagnets, characterized in that, in order to increase the damping efficiency of the oscillations, it is equipped for installation on a driven shaft y additional oscillation sensor connected to a control device supporting bearings mounted on the flywheel, plugs interacting with thrust bearings, and rods, one ends of which are rigidly connected to the forks, while others - with cores _e electromagnetic nits, linkage axis disposed paral- S ^; the rotation axis _{: the} flywheel, the electromagnets are installed; motionless, and the main vibration sensor is designed to be mounted on the drive shaft. '' SU „1218207>