The medium concrete mixer is a machine that mixes cement, sand and gravel aggregates and water and mixes them into concrete mixtures. Medium concrete mixer is mainly composed of mixing drum, feeding and unloading mechanism, water supply system, prime mover, transmission mechanism, frame and supporting device. Medium-sized concrete mixers are divided into batch type (batch type) and continuous type according to the nature of work; according to the mixing principle, they are divided into self-falling type and forced type; according to the installation method, they are divided into fixed type and mobile type; according to the discharge method, they are divided into tilting type and non-tilting type. Turn-over type; According to the structure of the mixing drum, it is divided into pear type, drum type, double cone, disc vertical shaft type and circular groove horizontal shaft type.
Maintenance of medium concrete mixer
1 Maintain the cleanliness of the body and remove dirt and obstacles on the body.
2 Check the oil and circuit and control equipment of each lubrication place, and add lubricating oil as required.
3 Before each shift, add water to the mixing drum and run it for 1 to 2 minutes. At the same time, check the reliability of the clutch and brake device.
4 During the operation of the concrete mixer, check whether the noise of the motor, reducer, and transmission gear is normal, and whether the temperature rise is too high.
5 After each shift, the concrete mixer should be cleaned carefully.
6 In order to ensure its technical performance, it is necessary to pay attention to not shoddy, and high-quality bearings must be selected during maintenance and reconstruction.
In order to ensure the mixing quality of concrete, the medium concrete mixer requires uniform mixing of the concrete mixture, short mixing time, fast discharge, low residual amount, low energy consumption and low pollution. The main factors affecting the mixing quality of medium-sized concrete mixers are: the structure of the mixer, the ratio of the mixing capacity of the mixer to the geometric volume of the mixing drum, the feeding procedure and feeding position of the mixture, the configuration and arrangement of the mixing blades, the geometric angle of the mixing speed and The wear condition of the blade liner, etc.
