SU910505A1 - Electric vibrator - Google Patents

Description

The invention relates to the field of vibration engineering, in particular to electromagnetic vibration drive devices, feeders.

A known electromagnetic vibrator (made in the form of a rack attached to the groove), on both sides of which two electromagnetic cores are symmetrically arranged, rigidly connected to tensioned bolts of spring-loaded housings, the springs of which rest on the plate of the frame 1.

The disadvantages of this vibrator are the difficulty in manufacturing, the cumbersome design and the large metal intensity of the device. It is quite difficult to set up and regulate in operation.

The closest to the invention in its technical nature is an electromagnetic vibrator belonging to two-mass oscillatory systems in which there are two masses — active and reactive — and the elastic system connecting them is in the form of a package of springs 2. Useful components of oscillations of an electromagnetic vibrating drive transmitted through the transport device

The transported element are only those that coincide with the plane of the direction of transport and are inclined at a certain angle to the direction of transport. Nevertheless, the oscillation components that are directed across the transport direction are harmful and reduce the efficiency of the vibrodrive. In the known structures of electromagnetic drives intended for feeders, additional load appears when the load is applied (placing the load on the transport tray).

15 called the galloping of the active mass, due to the instability of the system, the imbalance of the interacting masses.

The aim of the invention is to simplify the design and commissioning and adjustment work, reducing the overall dimensions and reducing the metal intensity of electrovibration feeders - the efficiency of electrovibrators,

25 reduce harmful fluctuations.

The goal is achieved by the fact that in an electrovibrator containing active and reactive masses and an elastic system connecting them,

Claims (2)

30 spring bags, the latter are spaced apart from one another in a vertical plane and placed symmetrically relative to the axis of vibration of the electrovibrator. The drawing shows the electric vibrator with divided packages. The electrovibrator includes an elastic system made in the form of two sets of springs 1 arranged symmetrically to the axis of useful vibration (sport tra) and spaced apart from each other, housing 2, measles 3, core 4, beam bracket 5 kracka 6, diaphragm 7 between active and reactive the masses. Electrovibrator works as follows. Anchors 3 with beam bracket 5 on the one hand (active mass) and core 4 with body 2 on the other hand (reactive mass), connected by an elastic system in the form of two packages of springs 1, move in one or the other direction directly opposite to each other, with a frequency of 3000 count / min, thus creating a vibration directed along the axis of the electrovibrator. The use of the invention allows to significantly reduce parasitic oscillations on the working body and to increase the stability of the system, as a result of the bifurcation of the elastic system reduces the length of the vibration exciter. The invention of the Electrovibrator, containing active and reactive masses and an elastic system connecting them, made in the form of spring bags, is so important that, in order to increase the efficiency and stability of the device, to reduce parasitic oscillations and the mass of the electrovibrator , spring packages are spaced apart relative to each other in a vertical plane and placed symmetrically relative to the axis of vibration of the electric vibrator. Sources of information taken into account in the examination 1. USSR author's certificate number 113681, cl. B 65 G 27/24, 1957. 2.Passport and instructions for vibrators of the type RM and GVK, Vibromash Plant, Mint Zhmash, Glavgormash, Tskhinvali, 1968.