Hydraulic braking system and power transmission line rail transportation equipment

The invention relates to the technical field of power supply, and particularly discloses a hydraulic braking system and power transmission line rail transportation equipment, the hydraulic braking system comprises an L-shaped braking claw, a hydraulic cylinder, a hydraulic cylinder and a hydraulic cylinder, the lower end of the L-shaped braking claw extends to the lower part of a guide rail; the brake arm and the L-shaped brake claw are oppositely arranged, and the brake arm is located above the guide rail; and the energy storage type hydraulic driving mechanism is connected with the brake arm and used for recovering and storing mechanical energy generated when a wheel axle of the transport vehicle rotates, and the recovered energy is used for driving the brake arm to be matched with the L-shaped brake claw to clamp the guide rail. According to the hydraulic braking system and the power transmission line rail transportation equipment, the stable and reliable braking function can be provided for the transporta