3results about How to "Effective vibration isolation" patented technology

This invention discloses an additive manufacturing-based inertial amplification nonlinear low-frequency vibration isolation metamaterial structure, vibration isolation device, and its performance control method. The vibration isolation metamaterial structure includes a rhombic frame structure, an inertial amplification unit, and a square spring structure. The square spring structure is arranged within the rhombic frame structure, with its two ends connected to a pair of opposite corners of the rhombic frame structure. The elastic extension direction of the square spring structure is parallel to the diagonal of this pair of opposite corners of the rhombic frame structure. The inertial amplification unit has a centrally symmetrical structure, including a rigid rod, two counterweights, and two diagonal rods. The center of symmetry of the inertial amplification unit, the center of the rhombic frame structure, and the center of the square spring structure all coincide in projection. Therefore, the vibration isolation metamaterial structure of this invention significantly widens the bandgap range and enhances low-frequency vibration isolation performance, exhibiting excellent performance in suppressing longitudinal waves in the 0-1000Hz low-frequency range, increasing vibration damping, and energy absorption.

This invention discloses a geometrically nonlinear, high-load, high-isolation and vibration-damping robot wheel-leg mechanism, including a thigh, a lower leg, a wheel, a crank, a connecting rod, an elastic device, a damping device, a first joint motor, and a second joint motor. The first and second joint motors are located inside a housing. The first joint motor is connected to the upper end of the robot's thigh and drives its rotation. The lower leg is rotatably connected to the lower end of the thigh, and the wheel is connected to the lower end of the lower leg. The upper end of the crank is connected to the second joint motor, and the lower end of the crank is rotatably connected to the upper end of the connecting rod. The lower end of the connecting rod is rotatably connected to the upper end of the lower leg. The damping device and the elastic device connect the lower leg and the connecting rod to achieve vibration isolation and reduction. This invention improves the robot's vibration isolation and reduction performance when traversing bumpy roads or walking on legs, making the robot body more stable and reducing the impact on the motors.

The application discloses a magnetic nonlinear stiffness large-damping high-isolation and damping robot wheel-leg mechanism, which comprises a thigh, a shank, a wheel, a crank rod, a connecting rod, a magnetic device one, a magnetic device two, a damping device, a first joint motor and a second joint motor. The first joint motor and the second joint motor are located in a box body, the first joint motor is connected with the upper end of the thigh of the robot and drives the rotation of the thigh, the shank connecting point is rotationally connected with the lower end of the thigh, and the wheel is connected with the lower end of the shank. The upper end of the crank rod of the crank rod is connected with the second joint motor, the lower end of the crank rod is rotationally connected with the upper end of the connecting rod of the connecting rod, and the lower end of the connecting rod is rotationally connected with the upper end of the shank. The damping device, the magnetic device one and the magnetic device two are connected with the shank and the connecting rod respectively, and isolation and damping are realized. When the robot passes through a bumpy road surface or walks in a foot mode, the isolation and damping performance of the robot is improved, the fuselage is more stable, and the impact on the motor is reduced.