Lifting and tipping feeding mode:
1. Working principle: under the traction of wire rope, the upper hopper crawls along the inner and outer guide rails of the feeding frame through two pairs of rollers. When the current roller moves to the stop of the inner guide rail, the hopper tilts upward with the former roller as the fulcrum, and the material gradually enters the mixing drum through the hopper mouth. When it tilts to the hopper ground, it is 55 degrees away from the horizontal line ° When the angle is set, the hopper will stop moving under the control of the limiting device, and all materials will enter the mixing drum. When the upper hopper falls down, the loosening of the steel wire rope makes the hopper move backward and return to its original position.
Advantages: (1) the work is intuitive and easy to operate and observe. ② When a fault occurs, it is easy to identify the cause and repair it in time. ③ The feeding device and the mixing drum are driven by the same power, which reduces the total power of the whole machine.
3. The concrete mixers with lifting and tipping feeding are mainly JZM series friction drum concrete mixers, JZC350B / 500 drum concrete mixers, and JDC series forced lifting concrete mixers are also used in engineering concrete mixers.
Lifting bucket feeding mode:
1. Working principle when lifting and feeding, the lifting transmission mechanism drives the steel wire rope to pull the hopper upward along the guide rail of the feeding frame through the pulley. When the hopper is lifted to the feeding position, the front roller at the bottom of the hopper enters the horizontal fork, and the bucket body continues to rise, forcing the bottom of the hopper and the bucket body to separate as a pivot, thus opening the material door. With the rising of the bucket body, the material door is gradually opened, and the materials in the bucket body are continuously put into the mixing drum through the intermediate hopper.
2. Advantages: (1) the position of hopper center of gravity is reasonable, there is no tipping moment in operation, and the whole machine works stably and reliably. ② During operation, the hopper does not overflow and the dust is small.
3. Jzc300 / 350A climbing bucket drum concrete mixer and JZC350 diesel engine drum concrete mixer are applied.