COMBINED VIBRATION ISOLATOR Russian patent published in 2018 - IPC F16F3/10 F16F7/01 

FIELD: machine building.

SUBSTANCE: invention relates to machine building. Vibration isolator contains a housing with a cover inside which is mounted an elastic element and a threaded pin. External thread is made on the housing and interacts with internal thread made on the cover plate. Elastic element is installed on an annular support mounted on a threaded end face of the housing. External collar of the central sleeve interacts with an annular stop of the cover plate. In the central bushing, an internal annular stop is formed interacting with an annular stopper formed on a threaded pin. Washer interacting with the annular support on the threaded pin end face of the housing is fixed on the opposite end of the threaded pin. Between the housing and the washer there is a cylindrical helical spring consisting of two parts with oppositely directed ends. First spring part is fitted with turns of rectangular section and rounded edges and second part is made hollow. On-coming end of first part is located in cavity of second part. Gaps of segment profile of contacting spring parts are filled with antifriction grease. Sealing gasket is mounted at end of second spring part to prevent grease leakage. First part of helical spring is enclosed by tube from damping material. Gaps between the spring and the tube are filled with crumb of friction material.

EFFECT: higher efficiency of vibration isolation.

1 cl, 2 dwg