Intermittent in-situ current-carrying friction testing device

An intermittent in-situ current-carrying friction testing device, comprising:

• a base, wherein a first mounting seat is fixedly connected to a top of the base, a first movable platform is slidably connected to a top of the first mounting seat, a first adjustment mechanism is installed between the first mounting seat and the first movable platform, and the first adjustment mechanism is configured for relative position adjustment between the first mounting seat and the first movable platform;
• a double-disc friction mechanism is installed on the top of the base, and the double-disc friction mechanism is connected to each of the first movable platform and the base;
• a second mounting seat is fixedly connected to the top of the base, a third mounting seat is installed on a top of the second mounting seat, a second adjustment mechanism is installed between the second mounting seat and the third mounting seat, and the second adjustment mechanism is configured for relative position adjustment between the second mounting seat and the third mounting seat;
• a high-speed camera is fixedly connected to a middle position of a top of the third mounting seat, a support frame is fixedly connected to one side of the top of the third mounting seat, and an infrared thermal imager and an acoustic emission sensor are installed on the support frame;
• the double-disc friction mechanism comprises a first motor and a first machine cover fixedly connected to the top of the first movable platform, a first driving shaft is rotatably connected in the first machine cover, and an aluminum alloy disc is fixedly connected to a top end of the first driving shaft;
• the double-disc friction mechanism further comprises a second machine cover and a second motor fixedly connected to the top of the base, a second driving shaft is rotatably connected in the second machine cover, and a copper alloy disc is fixedly connected to a top end of the second driving shaft;
• and
• a recess is formed in an outer circumference of the aluminum alloy disc, a protrusion having a profile consistent with a contour of the recess on the outer circumference of the aluminum alloy disc is fixedly connected to an outer circumference of the copper alloy disc, and an intermittent groove is formed in the aluminum alloy disc.