SU1096007A1 - Vibration working machine - Google Patents

Abstract

MAJUHHA FOR VIBRATION TREATMENT, containing a base, an elastically mounted working body, a drive shaft, a debalance vibration exciter mounted on it, made in the form of a flywheel, including two coaxial, rigidly connected half-discs, and mounted on them with the possibility of movement Grusha, characterized by the fact that, (to increase the amplitude of oscillations, one of the half discs of the flywheel is cut off in the form of a closed annular with screw ribs on its inner walls intended to partially filled and liquid.

Description

Spine-related materials relate to vibration processing of parts and can be used in mechanical engineering and other sectors of the national economy for cleaning, hardening the surface of parts and separating bulk materials according to the dimensions of the particles.

The known machine for vibratory processing, containing an elastically mounted on the basis of the working body, unbalanced vibration exciter, made in the form of a flywheel equipped with mobile weights, mounted with a possibility of changing its angular position relative to the axis of the shaft of the vibration exciter J

A disadvantage of the known device is low productivity, due to the fact that the angular position of the flywheel can be changed only in one direction.

Closest to the invention is a machine for vibration processing, comprising a base, an operating member elastically mounted thereon, a drive shaft, an unbalanced vibration exciter, hingedly mounted on it, made in the form of a flywheel, comprising two coaxial, rigidly connected half-discs made in in the form of round plates and mounted on them with the ability to move cargo t23.

However, the machine for vibratory processing of parts is characterized by an insufficient magnitude of the amplitude of torsional vibrations compared with circular or elliptical

The aim of the invention is to increase the amplitude of oscillations.

This goal is achieved by the fact that in a machine for vibration treatment, which contains a base, an operating member elastically mounted on it, a drive shaft, an unbalance vibration exciter mounted on it, executed in the form of a flywheel, including two coaxial, rigidly connected half-discs, and on them, with the possibility of moving the cargo, one of the half-disks of the flywheel is made in the form of a closed annular container with screw ribs on its inner walls, designed to be partially filled with liquid.

FIG. 1 shows a machine for vibratory processing, front view in FIG. 2 - that is, top view of

fig.Z - section aa in figure 1; figure 4 - view B on fgg.Z.

The machine for vibratory processing comprises base 1, working member 2 mounted on base 1 by means of shock absorbers 3, drive shaft 4 mounted on it by means of a spherical hinge 5 an unbalance exciter made in the form of a flywheel 6 including two coaxial, rigidly connected half-discs 7 and 8 mounted on them with the possibility of moving loads 9. One of the half-disks of the flywheel, for example half-disk 9, is made in the form of a closed annular container 10 with screw ribs 11 on its inner walls, designed partly filled with liquid 12. The semi0 disks 7 and 8 are interconnected by a detachable connection 13. The liquid is poured and drained into a closed annular container 10 through a throat at the end of the container, which is closed by a threaded plug 14. The half disks 7 and 8 are installed with angular displacements dL and / 3 in mutually perpendicular planes to the axis of rotation of the shaft 4. The gap 5 between the screw ribs 11 and the end surfaces of the container 10 serves to flow liquid and increase the vortex formation process on the sharp edges of the ribs 11. D By increasing the intensity of oscillations of the research institute, both half-disks 7 and 8 can be made in the form of a closed annular tank.

The machine for vibratory processing works as follows.

0 The rotation from the drive shaft 4 is transmitted to the unbalance exciter. The directional vibration from the centrifugal forces of the unbalanced weights 9 is transmitted to the working body 2, which

5 oscillates in planes perpendicular to the axis of rotation of shaft 4 along elliptical trajectories. Due to the angular imbalances of the flywheel 6, the working body 2 additionally performs complex torsional oscillations relative to the center of mass. At the same time, the fluid 12, which is located in a closed annular container 10, is involved in rotary motion due to the frictional forces and screw ribs 11. Since the closed annular container 10 is installed with angular displacements of ° C and, during rotation, the fluid oscillates and dynamically affects the end face.

the surface of the annular vessel 1U and the screw ribs 11. A complex spatial oscillation is created due to the additional vortex-like working body 2 on the sharp edges of the ribs 11.

Additional hydrodynamic alternating loads increase the amplitude of oscillations of the working body and, consequently, the intensity of vibroabrasive processing.

FIG. 2

Claims (1)

A VIBRATION PROCESSING MACHINE, containing a base, a working body resiliently mounted on it, a drive shaft, an unbalanced vibration exciter pivotally mounted on it, made in the form of a flywheel that includes two coaxially rigidly connected half disks and mounted on them with the ability to move cargo characterized in that, with a chain for increasing the oscillation amplitude, o; wn of the flywheel half-disks is made in the form of a closed annular container with screw ribs on its inner walls, designed for partial filling niya liquid- $ tew.