HJT-2型混凝土输送罐液压系统的设计

HJT -2型混凝土输送罐用于混凝土的输送和搅拌 ,装载量为 2m3。实际生产要求输送罐的转速应能无级可调。驱动液压系统主要由变量伺服泵和径向柱塞马达组成 ,它可使输送罐在 0～82 5r/min的范围内无级调速 ,能够满足混凝土的输送、搅拌、卸料等要求。开闭液压系统控制输送罐罐门的开关 ,主要由多路换向阀和液压油缸组成 ,可使得罐门闭合严密、开启迅速 ,并可稳定在任一位置上。输送罐的旋转控制手柄和开闭控制手柄均安装在车体的后部 ,操作人员可根据实际生产情况随时调整输送罐的转速以及罐门的开闭

DESIGN OF HYDRAULIC SYSTEM FOR HJT-2 CONCRETE STIRRING BARREL

HJT-2 stirring barrel with a capacity of 2m 3 is used to transport and mix concrete A rotation speed of the barrel should be stepless variable in production Drive hydraulic system consists of variable displacement servo pump and a radial piston motor For transportation,mixing and discharge of concrete,stepless speed regulating of the barrel can be realized within 0～82 5r/min. Opening and closing of the barrel cover are controlled by a switch system, consisting of a direction valve and a hydrulic cylinder The system controls discharge of the barrel The discharge cover can open rapidly and closes tightly It can stop in any position Control handles for rotating and discharging of the barrel lie in the back of vehicle Operator can control rotation speed and discharging of the barrel at any moment depending on work situation