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The preheating method of the hydraulic pump of the concrete pump truck is worthy of collection!

2021-10-23 08:18:15
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The hydraulic pump of concrete pump truck mainly includes balance pump, mixing pump and boom pump. Among them, except for the balance pressure pump and arm pump, which belong to the swash plate plunger pump, the stirring pump and the filling pump belong to the gear pump. To be clear, once connected to the loading force, the hydraulic pump described above is in passive operation. From the analysis of the working principle of the hydraulic pump, the balanced pressure pump is a one-way variable pump, and the angle of the swash plate cannot be adjusted automatically. The boom pump is a one-way quantitative pump, and the angle of the swash plate cannot be adjusted. The mixing pump and filling pump have no adjustment problems. Therefore, these hydraulic pumps cannot use the main pump warm-up method. The way to reduce wear is to keep running at low speeds. The method is fairly simple, keep the engine idling until it warms up.

混凝土泵车


混凝土泵车


混凝土泵车

Most manufacturers need to start low speed operation after 10 minutes before loading operation. Do not increase engine speed prematurely during jacket warm-up. In fact, the specific engine speed and warm-up time control, according to the ambient temperature and equipment conditions. In general, the lower the ambient temperature, the longer the warm-up time. It is important to note that since the leg-boom system and the mixing system are open systems, during the post warm-up period, the legs and boom can be extended to activate the agitator, allowing hydraulic oil to flow back to the rear of the diverter valve. The oil temperature of the oil tank and the entire hydraulic system gradually tends to be normal. It is important to note that since the arm system and mixing system of the concrete pump truck are both open, during the later warm-up, the outriggers and booms can be extended to start the mixer, so as to realize the reverse valve after the hydraulic oil returns. The oil tank, the oil temperature of the entire hydraulic system gradually tends to the normal effect. The preheating operation of the concrete pump truck seems monotonous, but in fact, correct operation will directly affect the failure rate, maintenance cost and even the safety state of the concrete pump truck. For traction concrete pumps, truck-mounted concrete pumps and other concrete pumping equipment, the basic preheating method of the main pump system is the same as that of the pump truck, and the basic preheating method of other systems can also refer to the pump truck. At the same time, it must be noted that the preheating operation method must not violate the relevant provisions of the equipment operation manual. I hope you develop good habits of routine operations in your daily work and complete tasks smoothly.


The above is the preheating method of the hydraulic pump of the concrete pump truck. If you want to know more, please visit the official website of Konero Group.


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