The mine car bumper spring is an accessory of the tramcar. Although it is only an accessory, its role is still great: it is installed in the mining cart bumper and plays a damping role between the tramcar and the coal mining car. It is a supporting product of 1t, 1.5t, 3t tramcar production units and tramcar maintenance units.
For narrow-gauge railway transport mine car with bulk materials such as ore and waste rock, the tramcar head spring shall be generally pulled by locomotive or winch. The tramcar bumper, tramcar bumper spring - tramcar can be divided into fixed tipper side dump type, shuttle type and bottom dump type according to its structure and unloading mode. The mining cart bumper spring fixed tramcar box is fixedly connected with the frame, and the tramcar must be overturned and unloaded by a dumper. The main components of the mine car bumper spring are car body, frame, buffer, coupler and traveling mechanism.
The mine car bumper spring frame is a metal structure, which can withstand the traction force, braking force, collision force between tramcars and rail impact force. The buffer is installed at both ends of the frame to ease the impact force between the two cars. Coupler is the part connecting locomotive and coal mining car. The commonly used ones are pin chain link and rotary chain. Large mining cart adopts automatic coupler with buffer function. The traveling mechanism is composed of four wheels and two axles. When the sum of tramcars and materials exceeds 20 tons, the number of wheel sets shall be increased generally. For mining cart with more than two wheel sets, in order to facilitate the formation of two wheel sets into a car with a turntable through the curve, this mine car is called a bogie.
