SU1044340A1 - Vibration exciter controlled during operation - Google Patents

Abstract

-VIBRATOR, ADJUSTABLE DURING THE PROCESS OF WORK, comprising a housing, a hollow unbalance drive shaft housed therein, the cavity of which is diametrically divided into two halves for accommodating a working fluid serving as an additional unbalance mass, a mechanism for filling unbalance cavities with a working fluid, drain valves and channels in both halves cavity, characterized in that, in order to extend the functionality, it is equipped with a system for controlling the amount of unbalance, made in the form of a rod with annular projections and channels placed in the cavity of the shaft, and c. interacting between themselves levers having a common pivot bearing outside the shaft cavity and connected to the drain valves, one of the levers is placed between the annular protrusions of the rod, and the filling mechanism is in the form of an axially mounted axial a compressor enclosing the shaft cavity, collections made in the housing and § associated with the corresponding half of the shaft cavity, pipelines, soy (Reinforcing the collections with rod channels ensuring the filling of half a polo ti, not associated with the collection, and the labyrinth seal disposed between the housing and the cavity of the shaft, and a reverse klapaya intended for communication with the atmosphere collection. 4 4 oo 4

Description

The invention relates to a vibration technique and can be used in various industries.

A vibration exciter is known, comprising a housing in the form of a hollow shaft, an elastic shell located therein, connected through a channel in one of the shaft trunnions. With a source of fluid medium, and a moving unbalanced mass, and in the other trunnion shaft, a kayal is made to connect the shaft cavity with a source of compressed air that serves to displace the medium from the elastic shell, the casing is provided with a partition with openings for the passage of compressed gas dividing it into two halves, in one of which an elastic shell is placed, and as a mobile unbalance th weight used liquid filled in the elastic obolochku- Ciy.

The lack of an exciter, the need for a source of compressed air and a source of fluid, the environment ...

The closest to the present invention is a vibration exciter, adjustable in the process of operation / containing a housing, a hollow debalance drive shaft housed therein, the cavity of which is diametrically divided into two halves to accommodate the working fluid, which serves as an additional unbalance weight, the mechanism for filling the unbalance cavities with the working fluid , drain valves and channels in both halves of the cavity, channels for working medium C2 are made in the axles of the shaft.

A disadvantage of the known vibration impulse is the need for supplying and discharging a liquid that serves as an unbalance mass, which reduces; its applicability.

The purpose of the invention is j.i expansion of the functionality of the vibration exciter.

The goal is achieved by the fact that the vibration exciter, which is adjustable during operation, contains: a housing, a hollow unbalance drive shaft housed therein, the cavity of which is divided into two halves to accommodate the working fluid, an additional unbalance mass, the filling mechanism of the debalance cavities with the working fluid , drain valves and channels in both halves of the cavity, equipped with a system for controlling the amount of unbalance, made in the form of a rod with annular protrusions and channels placed in the shaft cavity and present

between the levers having a common articulated support outside the shaft cavity and connected with drain valves, one of the levers is placed between the annular protrusions of the rod, and the filling mechanism is designed as an axial compressor installed in the housing, enclosing the shaft cavity, assemblies made in the housing and st from the corresponding half of the cavity of the shaft, the pipelines connecting the collectors with the rod channels ensuring the filling of the half of the cavity that is not associated with the collection, and the labyrinth seal placed dy The housing and the cavity of the shaft, and a check valve, intended for communication sbornikas atmosphere. ..

FIG. 1 shows the proposed vibrator; in fig. 2 - labyrinth seal.

The vibration exciter, adjustable during operation, includes a housing 1, a drive shaft 2, divided into light 3 and heavy 4 halves, drain valves 5. and 6, channels 7, rod 8 with annular projections 9 and channels U and 11, levers 12 and 13 having a common pivot bearing 14,. axial compressor 15, collections 16 and 17, pipelines 18 and 19, labyrinth seal 20, check valve 21, rod seal 22 and fitting 23

Vibro works as follows ..

 during the preliminary debugging of the device, the light half 3 of the pipeline 19 is filled with a working fluid, for example a liquid. In this case, part of the liquid enters the collector 16, from where, due to the pressure difference created by the compressor .15 (or by supplying compressed air through fitting 23 to the housing 1). Half the shaft 3 of the shaft 2 falls. At the same time, the shaft 2 is balanced or its unbalance becomes minimal. The device is stopped with a light cavity half filled with a cavity 3.

After turning on the rotation drive (not shown) and reaching the working speed, the speed from the light half of the 3 cavities is removed and the heavy half 4 cavities are filled in when the corresponding valve 6 is actuated. The device excites oscillations of a certain amplitude. To increase the amplitude, the rod 8 is moved to the left, and to reduce it to the right.

The proposed exciter improves the conditions of its operation and expands the scope of application. 22 P J / A ////// 1Гу. , V V7 Q & 4 / e /

Claims (1)

(54) (57) VIBRATOR, REGULATOR-. DIGGED IN THE PROCESS OF WORK, containing a housing, a hollow unbalanced drive shaft placed in it, the cavity of which is diametrically divided into two halves to accommodate the working fluid, which serves as an additional unbalanced mass, a mechanism for filling the unbalance cavities with a working fluid, drain valves and channels in both halves of the cavity; Tey, it is equipped with a system for regulating the amount of unbalance, made in the form of a rod with annular protrusions and channels located in the shaft cavity, and levers interacting with each other, having a common articulated support outside the shaft cavity and connected with drain valves, one of the levers is placed between the ring protrusions rod, and the filling mechanism is made in the form of an axial compressor installed in the housing, covering the shaft cavity, collectors made in the housing and connected with the corresponding half of the shaft cavity, oprovodov connecting rod collections with the channels so as to ensure filling of the cavity half, not associated with the receiver, and a labyrinth seal disposed between the housing and the cavity of the shaft, and a reverse klapaya intended for communication with the atmosphere collection.