SPATIAL VIBRATION ISOLATOR OF FRAME TYPE Russian patent published in 2018 - IPC F16F15/06 F16F1/04 F16F3/10 F16F7/08 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, namely to spring vibration isolators used to reduce vibrations. Spatial vibration isolator frame type contains a frame which connects two resilient damping elements of different design installed in it in parallel, but of equal rigidity, and designed for highly loaded vibration isolation systems. Frame is made in the form of two supporting horizontal plates, resting against the left and right resilient damping elements, respectively. Horizontal plates of the carcass are rigidly connected to vertical plates, that are connected together by the support plate in the frame lower part, where a vibration-insulated object platform is mounted through the vertical post. Left and right elastic-damping elements are mounted on a common base. Left elastic-damping element is made in the form of a dry friction damper containing a cylindrical helical spring consisting of two parts with oppositely directed ends, one part of which has turns of rectangular section, and the other part of the spring is made hollow. First part on-coming end is located in the second part cavity. Spring contacting parts segment profile gaps are filled with antifriction grease. Sealing gasket is mounted at the spring second part end to prevent grease leakage. Helical spring first part, made with turns of rectangular cross-section with rounded edges, is covered by the tube of damping material, for example, polyurethane. Gaps in the helical spring first part are filled with the friction material crumb. On the upper and lower support rings, the upper and lower vibration damping plates are fixed, for a firm and reliable springs ends fixation during their operation. Right elastic-damping element is made in the form of a cylindrical helical spring, the turns of which are covered with a vibration damping material, for example polyurethane.

EFFECT: increase in the vibration isolation efficiency at resonance.

1 cl, 2 dwg