Ordinary concrete mixer is generally powered by chassis engine, and then the rotating power of diesel engine is transformed into the hydraulic pressure of hydraulic pump (also divided into gear pump or piston pump) by hydraulic pump, the hydraulic oil is transmitted to the hydraulic motor by hydraulic pipe, the pressure is transformed into power, and the mixing tank is driven to rotate by reducer.
Specifically, the circulation path of the hydraulic oil flows directly to the hydraulic motor after coming out of the gear pump or plunger pump. The gear pump also needs to change the path of the hydraulic oil path through the directional valve to change the rotation direction of the mixing tank. The hydraulic oil needs to be cooled after coming out of the hydraulic motor, so the hydraulic oil flows to the radiator, After the radiator comes out, it flows back to the gear pump or plunger pump. Concrete mixer truck
In addition to the mixing tank directly driven by vehicle chassis engine, the separate concrete mixing tank can be divided into motor-driven concrete mixing tank and diesel engine driven concrete mixing tank, which can be fixed on the ground or flat car separately.
And these two need to pay attention to is, when using to pay attention to see whether the hydraulic oil radiator and fan work normally. The mixing tank driven by diesel engine does not have battery when it is delivered from the factory, but the hydraulic oil radiator fan needs power supply to work. In the concrete mixer truck, there is a generator battery. The manufacturer will connect it directly. The single tank of diesel engine type needs to be equipped with power supply to start the diesel engine and supply power to the radiator fan. If it is a motor type single tank mounted, there is no need to install a separate radiator.
In the daily maintenance, we must timely replace the hydraulic oil, timely replace the hydraulic oil to keep the hydraulic oil clean, can reduce the damage of small debris to the valve. When changing from forward rotation to reverse rotation or from reverse rotation to forward rotation, first reduce the rotation speed of the mixing tank of the small concrete mixer, and do not change the direction suddenly while maintaining a high rotation speed.
Regularly check the reversing valve of the small concrete mixer to see if the inlet and exhaust holes are blocked by oil sludge or other debris, and the sealing is not strict. Timely check and solve the problems of the reversing valve, which can also effectively improve the work efficiency, so as not to drop the chain at the critical time.