Damping channel width-adjustable type magnetorheological vibration isolator

The invention discloses a damping channel width-adjustable type magnetorheological vibration isolator. The damping channel width-adjustable type magnetorheological vibration isolator comprises magnetorheological fluid, a shell body with the top end open and used for containing the magnetorheological fluid, a rubber main spring plugging at the opening position of the top end of the shell body, a connecting rod with one end being fixedly connected with the rubber main spring, a rubber bottom film arranged at the bottom of the inner side of the shell body and a magnetic core assembly arranged inthe shell body and dividing an inner cavity of the shell body into an upper cavity and a lower cavity. The magnetic core assembly comprises a magnet exciting coil, an external magnetic core fixedly arranged on the inner wall of the shell body, an internal magnetic core moving up and down relative to the external magnetic core and a control device for controlling the internal magnetic core to moveup and down. The internal