METHOD OF VIBRATION ISOLATION OF TRANSPORT FACILITY AND SELF-PROPELLED PROCESS VEHICLE OPERATOR AND OPERATOR SEAT CONTACT SUSPENSION TO THIS END Russian patent published in 2012 - IPC B60N2/50 

FIELD: transport.

SUBSTANCE: invention relates to machine building. Proposed method consists in cushioning action of seat suspension elastic element by supercritical deformation and excitation of unstable motion of extra elastic element. Then, antivibration system position control signal is activated. Interval of extra elastic element unstable motion and rigidity in said interval are adjusted within the range of suspension travel. Note here that one extra position control signal is generated to be activated in quasistatic and transition modes of system motion at relative speeds of suspension approach with travel limiters. Seat suspension comprises base, motion converter, air-operated elastic element, extra elastic element and mechanism to generate and activate position control signal including air processing unit and air control valve. Motion converter kinematic circuit comprise input and output links. Extra elastic element is mounted to allow unstable motion at supercritical deformation. Note hear that suspension comprises additional kinematic circuit for geometrical closure of suspension and extra elastic element, and one mechanism to generate and activate extra position control signal. Relationship between parameters of position signal generation and activation mechanism features the following magnitudes: where α_in1, α_ex1 and α _in2, α_ex2 are effective flow cross section areas of flow restrictors ate air control valves inlets and outlets.

EFFECT: higher quality of antivibration protection.

3 cl, 10 dwg