ADJUSTABLE COMPRESSION-VACUUM SHOCK MACHINE OF DOUBLE ACTION Russian patent published in 2017 - IPC E21B1/38 E02D7/02 E21C37/22 B25D9/04 B25D9/06 B25D9/14 

FIELD: construction.

SUBSTANCE: machine comprises a housing and a striker arranged therein, forming the upper chamber and the lower chamber, a vacuum compressor located at the upper part of the housing, connected to the upper chamber and comprising at least one pair of centrifugal compression-vacuum mechanisms mounted oppositely to each other with suction openings connected to the disc and having a common channel through an opening in this disc, which forms chambers above and below the disc in the upper housing part. The chamber above the disc is connected to the atmosphere, and cuts off said upper chamber and the chamber under the disc from the atmosphere. Said centrifugal compression-vacuum mechanisms are electrically connected to a three-position switch electrically connected to the current source, a receiver connected to the upper chamber, a magnetic lock for the striker, installed in the upper chamber, and a working tool. The lower chamber is connected to the atmosphere. The receiver is located in the housing between the upper chamber and the vacuum compressor and is connected to the upper chamber through the openings of the centering disk separating the receiver from the upper chamber, and to the vacuum compressor - through the openings in the mounting disc separating the vacuum compressor from the receiver. The magnetic lock for the striker is connected to a regulator located in the receiver and made with the possibility to change its length.

EFFECT: ensuring the possibility to expand the energy of impacts and the frequency, to avoid pressure losses during the flow-over from the receiver to the upper chamber, to reduce the machine dimensions by width, and to work in hard-to-reach places.

3 cl, 1 dwg