Precise weighing device for underground rail transport mine car of mine

The utility model discloses a precise weighing device for a mine underground rail transport mine car, which comprises a groove-shaped bearing frame, a weighing sensor and a force transmission component, the groove-shaped bearing frame is arranged right below a steel rail of the rail transport mine car, two sides of the groove-shaped bearing frame are respectively and fixedly connected with two adjacent cement sleepers, and the weighing sensor is arranged on the groove-shaped bearing frame. The weighing sensor is fixed in the groove-shaped bearing frame, and the force transmission component is pressed on the weighing sensor and fixedly connected with the bottom of a steel rail of the rail transport mine car. According to the utility model, the weighing sensors corresponding to the wheels of the mine car are used for accurately metering the ore loading quantity of the single bucket of the bottom-dump mine car, and as the weighing sensors are positioned right below the steel rails and the force transmission part