Two-series spring damping type current collector for subway vehicles

A two-series spring damping type current collector for subway vehicles, comprising:

• an insulating back plate, wherein the insulating back plate is connected to one side of each of second tooth-shaped plates through a corresponding one of first tooth-shaped plates arranged at two lateral portions of the insulating back plate, and an other side of the each of the second tooth-shaped plates is connected to a mounting plate;
• a first spring assembly arranged on one side of the mounting plate, wherein the first spring assembly comprises a rubber block and a tension steel spring, one end of the tension steel spring is connected to a first spring connecting piece, an other end of the tension steel spring is connected to a second spring connecting piece, the tension steel spring is internally provided with the rubber block in a shape of cylinder, a diameter of the rubber block is equal to a diameter of an inner cavity of the tension steel spring, a length of the rubber block is equal to a length of the tension steel spring in a pre-tightened state, the first spring connecting piece is connected to a first spring adjustable connecting block through a first shaft, the first spring adjustable connecting block is connected to one end of a first bolt, an other end of the first bolt is connected to the mounting plate through a first rubber gasket and a first screw cap the second spring connecting piece is connected to a second spring adjustable connecting block through a second shaft, the second spring adjustable connecting block is connected to one end of a second bolt, and an other end of the second bolt is connected to a swing arm through a second rubber gasket and a second screw cap;
• and
• a swing arm assembly comprising the swing arm, a slider mounting seat and a collector shoe, wherein one end of the swing arm is connected to the mounting seat and the collector shoe, and an other end of the swing arm is connected to a second fixed block connected to a limit block;
• a stopper is connected to the mounting plate;
• a first fixed block is connected to the mounting plate, the first fixed block is rotationally connected to the second fixed block through a main shaft,
• wherein a limit mounting seat is connected to the mounting plate;
• a limit switch is connected to the limit mounting seat;
• the limit switch is connected to a limit shaft;
• a lower part of the limit switch is connected to a limit switch stopper;
• and a stop block is connected to the swing arm.