The JZC350 drum mixer produced by Zhengzhou Dingli is a self-falling drum mixer. It is a self-falling concrete mixer with a double-cone mixing drum that rotates forward for mixing and reverse for discharging. It consists of a feeding mechanism, a mixing mechanism, a transmission mechanism, and a water supply mechanism. , chassis and electronic control system, etc., it can mix plastic and semi-dry hard concrete. Because this mixer is widely used, many customers like to call it the 350 drum mixer.
The feeding mechanism of the JZC350 concrete mixer consists of a feeding rack, a feeding hopper and a lifting device. The feeding system of the fully automatic JZC350 drum mixer consists of a winch mechanism, a feeding rack, a hopper, a feeding funnel, etc. The brake motor drives the drum to rotate through the reducer, and the wire rope pulls the hopper through the pulley to climb upward along the loading rack track. When it climbs to a certain height, a pair of rollers on the bottom of the hopper enters the horizontal branch of the loading rack, and the bucket door automatically opens, and the material It is put into the mixing tank through the middle hopper. The upper and lower limits of the hopper are controlled by the travel switch. The upper limit switch is installed on the loading frame, and there are two upper limit switches, which respectively limit the rise of the hopper and provide safety protection. There is only one limit switch for the lower limit of the hopper of the JZC350 drum mixer, which is installed on the top of the upper guide rail. When the hopper drops to the bottom of the pit, the wire rope is slightly loosened, and the spring lever mechanism causes the lower limit to move, and the hoisting mechanism automatically stops. The JZC350 concrete mixer braking motor can ensure that the hopper can reliably stop at any position when running at full load. The braking torque is adjusted by the large nut on the back seat of the motor. The JZC350 drum mixer lifting hoist is composed of an electromagnetic brake motor, a reducer and a drum. The speed ratio of the reducer is 22:45, and the drum speed is 62.36r/min.
The mixing mechanism of JZC350 mixer is the working part of the mixer, which consists of mixing drum, supporting wheel and transmission system. The simplified form of the JZC350 drum mixer is double cone-shaped, with high and low blades welded inside the drum, which form a certain angle with the axis of the mixing drum respectively. The mixer rotates with the mixing drum, and the blades cause the material to lift and fall while stirring back and forth in the axial direction, so the stirring is strong and the effect is good. The mixing time of JZC350 concrete mixer is about 35S-45S. The JZC350 concrete mixer has a pair of discharging blades welded inside the discharging cone of the shaking barrel. When the concrete is mixed, change the rotation direction of the mixer, and the concrete will be discharged from the mouth of the discharging cone through the low blades and the discharging blades. The mixing drum of the JZC350 mixer is supported by four supporting wheels. The rotation of the mixing drum is achieved by the motor driving the large gear ring mounted on the simplified body through the transmission system. The work is reliable. The forward and reverse rotation of the mixing drum is achieved by the motor reversal of.
The water supply system of JZC350 mixer consists of motor, water pump, regulating valve, water suction valve and pipeline. The starting water pump of the JZC350 mixer can inject water into the mixing drum. The amount of water required for mixing each tank of concrete is controlled by the time in the electronic control system and the relay controls the running time of the water pump. When the button is rotated to the "time control" position, the water pump will press Set time operation and automatic stop. When the button is rotated to the "manual" position, continuous water supply can be provided. The JZC350 concrete mixer is also equipped with an additional pipeline for water outside the cylinder and for cleaning the entire machine.
The chassis of JZC350 mixer is a welded structure. Two tires are installed in the lower part, and a drawbar is installed in the front for towing. In order to facilitate short-distance towing and parking, the JZC350 concrete mixer is equipped with front supporting wheels, and the four corners of the chassis are equipped with adjustable legs. When the mixer is working, the supporting legs should be firmly supported to make the whole machine stable. When towing, the outriggers should be retracted and fixed with latches at their high position, and the front support wheels should be turned up and hung up.
