SU1237265A1 - Vibratory drive - Google Patents

Description

2, Vibrator according to claim 1, characterized in that, in order to transfer the concentrated load to the object, the second support is made in the form of a hinged coupling, and the element that transfers the load is in the form of a diaphragm and threaded reguli installed in it

The invention relates to devices for driving vibrations and can be used to test frame structures using vibrations.

The aim of the invention is to provide adjustment of the disturbing force by smoothly changing the kinetic moment of unbalance during operation, transferring the concentrated load to the object, as well as changing the point of application of the load to the object.

FIG. 1 shows a vibrodrive, a general view of FIG. 2 is a section A-A in FIG. one.

The vibrodrive contains a motor 1, a shaft 2 connected to it with a radial hole 3, one of which is mounted in the supports, sub-shaft 4, and the second is made in the form of a hinge coupling 5 placed in the hole 3 of shaft 2 the masses M at the ends, spring-loaded relative to the shaft 2 by the spring 7, and the mechanism for adjusting the unbalance 6 position. set by shaft 2 and associated with a plug 8.

The control unit is made in the form of a rolling bearing 9 mounted on a fork 8, mounted on its outer ring of a ring 10, connected to it by one end of a guide 11 connected to the other end of a washer 12 mounted on a roller outer ring of 13 rolling on the shaft 2, and the threaded rod-lead 14, pivotally connected at one end to the washer 10, and

leveling pads designed to interact with the object.

3. Vibro according to paragraphs 1 and 2, namely, in order to change the point of application of the Harpv object to the object, the diaphragm is mounted for movement along the shaft

on the other end, there is a thread with a washer 12. The tuning knob 15 is attached to the rod-driver 14.

The vibrodrive also contains an element that transfers the load to the object, made in the form of a diaphragm 16 placed on the outer ring of the bearing support 4 and threaded adjusting holes 17 installed in it, designed to interact with the object 18 (for example, a frame structure). The diaphragm 16 has the ability to move along the shaft 2 when turning the adjusting supporting rods 19.

Vibro works as follows.

The vibrodrive is placed inside the object 18 (carcass construction), setting the diaphragm 16 at a certain height using threaded supporting rods 19. The adjusting stops 17 allow to reduce the gap between the stops 17 of the diaphragm 16 and the walls of the object 18 when transmitting the concentrated cyclic load.

In the initial position, the unbalance bar 6 and the unbalance position adjustment mechanism 6 occupy the position shown in FIG. 1 dotted line

When the shaft 2 rotates, the unbalance 6 and the fork 8 with the control body come into motion, but the magnitude of the disturbing force is thus zero, since the masses of M. are equal in magnitude and are at the same distance from the axis of rotation.

Then, when the working speed is reached, the setting rod of the threaded rod-driver 14 is rotated by the handle 15 and the washer 10 with the fork 8 is moved downwards, enabling the unbalance rod 6 under the action of the spring 7 and the centrifugal 3112372 .65

Noah forces move radially to the side opposite the fork 8, as shown in FIG. 1.

Due to the presence of the coupling 5, the shaft 2 becomes flexible, which allows the subtype support 4 together with the diaphragm 16 to have a slight radial movement depending on the gap between the threaded adjustment stops 17 and the walls of the object 18, i.e. it is possible to sample the gap between the lugs 17 and the object 18 and transfer the concentrated load to the object 18.

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Editor I.Rybchenko

Compiled by N.Vartanova

Tehred L "Serdyukov Proofreader M. Maksimishinets

Order 3224/9

Circulation 428. Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, F-33, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Claims (3)

1. VIBRATOR, containing a motor, a shaft connected to it, installed in two bearings, one of which is a bearing, unbalance placed on the shaft and an element that transfers the load to the object, connected with the bearing support, characterized in that, in order to ensure adjustment of the disturbing force by smooth changes in the kinetic moment of unbalance in the process of working. you, it is equipped with a mechanism for regulating the position of the unbalance made in the form of a fork mounted at an angle to the shaft with the possibility of movement along its axis, and a control body mounted on the shaft and connected with the fork, a radial hole is made in the shaft, and the unbalance is made in the form of a rod spring-loaded relative to the shaft, placed in the hole and interacting with the fork. yo GO m u o> eat 2, Vibration drive according to π. 1, characterized in that, in order to transfer the concentrated load to the object, the second support is made in the form of an articulated coupling, and the load transmitting element is in the form of a diaphragm and threaded adjusting stops installed in it, designed to interact with the object. 3. The vibrator according to paragraphs. 1 and 2, characterized in that, in order to change the point of application of heat to the object, the diaphragm is mounted with the possibility of movement along the shaft