SU1459723A1 - Vibration exciter - Google Patents

Abstract

The invention relates to a vibration technique and can be used in various industries. The purpose of the invention is the expansion of technological capabilities by expanding the range of oscillation frequency control. For this, the exciter, comprising a housing 1 with an axis 2 and a ball bearing 3 with a debalance 4 attached to its outer race, located in housing 1, is equipped with a second ball bearing 5, which is rigidly connected with the inner ring 2 to the axis 2, and the outer ring with a ball bearing ring 3. The ends of the ball bearings 3 and 5 are 6 and 7, rigidly connected to the housing 1 and made with two concentric rows of nozzles 8 and 9. On the axis 2, two disks 10 with OT-I version 11 are rotatably mounted. Compressed air through duct 1 4 in axis 2 enters the nozzles 9 and then to the ball bearing cage 3. At the same time, air enters through the holes 11 and the nozzles 8 to the ball bearing cage 5. The nozzles 8 through one are inclined in opposite directions so that npij turning the disks 10 and installing nozzles 8, inclined in one direction or another, it is possible to rotate the holder of the ball bearing 5 in one or the opposite direction with the external holder of the ball bearing 3. Thus, the vibration frequency of the vibration exciter is adjusted. 2 Il. (L

Description

Kanal 14, designed for communication, two lids located

a source of compressed air (not shown) through fitting 15 with cavities 12 and 13.

Vibro works as follows .40

Compressed air from the shuper 15 gets into the channel 14 and from it in the cavities 12 and 13, from where it passes through the holes 11 in the disks 10 through nozzles B and 9 in the covers 6 and 7 to ball cages of 45 bearing bearings 3 and 5. Under the action of compressed air comes into rotation the outer ring of the ball bearing 5, which is rigidly connected to it the inner

from the ends of the ball bearings rigidly connected to the housing and made with two concentric rows of chant, intended for supplying compressed air to the ball bearings, the nozzles of the inner row are angled to each other, two disks mounted on an axis with the possibility of rotation, covered with holes and made with holes that coincide with the inner row of nozzles, body and covers are formed with holes, and in the axis there is a channel for communication of a source of compressed air with

from the ends of the ball bearings rigidly connected to the body and made with two concentric rows with chant, intended for supplying compressed air to the ball bearings, the nozzles of the inner row are angled to each other, two disks mounted on an axis with the possibility of rotation, covered by the shaft cavities are formed with openings coinciding with the inner row of nozzles, a body and covers are formed, and a channel is made in the axis for communicating a source of compressed air with

ball bearing ring 3 and, simultaneously, 50 cavities.

Fie.2

Claims (1)

Claim A vibration exciter comprising a housing with an axis, a first ball bearing located in it and an unbalanced load fixed on its outer race, characterized in that, in order to expand technological capabilities, it is equipped with a second ball bearing, the inner ring of which is rigidly fixed to the axis, and the outer one is rigidly connected to the inner ring of the first ball bearing, two caps located at the ends of the ball bearings, rigidly connected to the housing and made with two concentric rows of nozzles designed for supplying compressed air to ball bearings, the nozzles of the inner row are located at an angle to each other, two discs mounted on the axis with the possibility of rotation, covered by caps and made with holes matching the inner row of nozzles, the body and caps are formed cavities, and in the axis is made a channel for communicating a compressed air source with cavities.