A concrete mixer truck (also known as a "snail truck" or "olive truck") is a specialized vehicle used for transporting ready-mixed concrete. Its core function is to keep the concrete uniform during transportation, preventing segregation or initial setting.
Structure Composition:
Chassis: Often uses a type II general chassis, providing the overall driving capability of the vehicle.
Mixing Drum: Cylindrical (often pear-shaped), with spiral blades welded to the inner wall, serving as the container for loading and mixing the concrete.
Power Take-Off Device: Draws power from the main engine to drive the hydraulic system.
Hydraulic System: Converts mechanical energy into hydraulic energy, which then drives the mixing drum to rotate through a motor and a reducer.
Control Mechanism: Controls the rotation direction (forward for feeding/transportation, reverse for unloading) and speed of the mixing drum.
Cleaning System: Used to wash the mixing drum and discharge chute to prevent concrete from hardening residue.
Subframe and Support Wheel System: Supports the mixing drum and transmits the load; some models are equipped with a buffer device.