SU782887A1 - Vibration exciter - Google Patents

Description

(54) VIBRATOR

The invention relates to mining machinery and can be used in vibrating conveyors, screens and feeders.

Exciters are known that contain a shaft with unbalance, made of two equal parts by weight, each of which is cNfOHTHpoBaHa with the possibility of radial movement in hollow columns, and both parts of the unbalance in the initial position are pressed to the bottom of the spring columns with different stiffness. VL-15 is the complexity of their design and, therefore, low reliability.

The closest to the invention of the technical essence and the achieved effect is vibration-driven exciter, 20 comprising a housing, a drive shaft and a ring-shaped body planted on it with a displaced center of gravity. relative to its axis G2.

The disadvantage of this device is the narrow range of work.

The aim of the invention is to expand the range of operation.

This is achieved by the fact that the ring-shaped body is made of elastic 30

material, defrosting under the action of centrifugal forces.

In addition, in order to shift the center of gravity in one side of the ring-shaped body, a fraction is placed.

Figure 1 shows the vibration exciter, General view; figure 2 - the same. in progress; on fig.Z-ring-shaped body in section.

The vibration exciter comprises a housing (not shown in the drawing), a drive shaft 1 and an annular body 2 mounted on it with a displaced center of gravity about its axis. The annular body 2 is made of an elastic material deformed by centrifugal force. In one side of the ring-shaped body 2 fraction 3 is placed.

Vibro works as follows.

When the shaft 1 is unwinding, the ring-shaped body 2 remains at rest until the shaft 1 reaches the required rotational speed. Thus, the activation of the vibration exciter occurs in the absence of a static moment on the shaft 1. A further increase in the speed of rotation of the shaft 1 leads to the fact that the ring-shaped body 2 is carried along by the shaft

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at the same time, under the action of the centrifugal force, the ring-shaped body 2 is pulled out so objectivized that the bending of the ring is filled with fraction 3 ja; cTb of the blade 1.

Js6 & rotiy Pb§v6y e extend the range of operation of vibration excitement gSn (zohrayyonNI itfsSe 6fU,

Formula

Claims (2)

1. The vibration exciter, comprising a housing, a drive shaft and an annular Body planted on it with a displacement of the center of gravity relative to its axes, about which it is, that, with the aim of expanding the range of work, the ring-shaped body of the elastic material, defibred by the impact of the centrifugal force. . 2. Vibr exciter according to claim 1, of t and i h y u schI and with the fact that, for the purpose of the MEMORY and hard, -: from 6Rr. Sources of information, SO in the examination 1. AYTORSK certificate of the USSR 332866, cl. B 06 B 1/16, 1970. 2. Authors certificate of the USSR 303114, cl. B 06 B 1/16, 1969 (prototype).