From the overall structure, the small pump car is modified on the truck chassis, and the motion and power transmission, pumping and mixing device, distribution device and other auxiliary devices are installed on the chassis. Therefore, the pump body is mounted on the chassis of the vehicle, and the pump truck is formed by telescopic or bent cloth arm. When the pump truck works, the concrete is continuously transported along the pipe through the pressure. According to the structure, Small pump truck It can be divided into piston type, extrusion type and water pressure membrane type. In addition, there are many sensors installed on the pump, including weighing sensors and angle sensors.
Just touching the pump truck, you may have a bit of doubt. The machine comes from such a great pressure, dozens of meters of concrete, I believe you will understand after reading the following introduction. First of all, when the pump is driven, like other pumps, the power is very simple and provided by the engine. The two and most important thing is the power source for pumping operations. The power of the engine is transmitted to the hydraulic pump group or the rear axle through the power distribution box, and the hydraulic pump drives the piston to drive the concrete pump. The concrete is then conveyed to a certain height and distance by using the boom and pipe of the pump. The small pump car is designed with an angle sensor on the movable arm, which can detect the current angle of the boom in real time and enable the operator to understand the tilt and height of the boom in real time. The concrete can be transported to the prescribed location accurately and conveniently. Similarly, ordinary users will install weighing sensors to measure the quality of concrete, making it easier for users to use concrete mixtures.
When operators connect small pump trucks, they must be installed in a specific sequence. First, remove it from the socket of the equipment and connect the pipe once. It can not be installed upside down, and can not connect and connect to the middle. Because the front and rear installation sequence allows the internal force of the concrete pumping pipeline and protects the pipeline, the operator must install the pump pipe in strict sequence.
During the routine maintenance of small pump cars, equipment maintenance personnel are likely to lose some marginal items. What items are easy to miss: whether the water level of the tank is normal, whether the distributor indicator of the lubrication system is normal, and whether the positive and negative effects of the mixer are normal.
In order to better carry out the construction of small pump cars, some maintenance and repair are necessary. But how much do you know about the correct preheating method for small pump cars?
When the hydraulic pump is in the process of the operation of the air pump, the friction produced by the movement of the bearing and the oil distribution plate will inevitably generate heat, which will be gradually transmitted to the surrounding hydraulic oil, resulting in higher oil temperature and higher viscosity, which will reduce the viscosity of the oil.
When the hydraulic fluid flows, the high temperature hydraulic oil is sent to the hydraulic circuit. When the temperature of the hydraulic system of the whole pump system is reached, the oil in the motor and pipe will be heated gradually due to convection. Working temperature. This means that the warm-up work is successfully completed.
Because of the difference between the open system and the closed system, there are two ways to increase the displacement of the main oil pump.
One is a small pump truck that has just started running. The first thing to do is to increase the pump displacement from zero to zero. When the reversing valve starts working, the hydraulic oil will return after the reversing valve. Return to the fuel tank, pumping the hydraulic system will gradually increase the oil temperature.
In order to achieve normal pump displacement, the whole process takes about 12-20 minutes.
The two closed system needs to start for about 5-8 minutes in a low emission state before it can be directly set to normal pumping capacity.
How does a small pump car work in the wind?
In the dust storm operation, the driver's sight is affected. The surrounding environment, pedestrians and non motorized vehicles may cause accidents at any time, and are prone to traffic accidents. Therefore, careful driving in windy and sandy weather is especially important. 1. when driving in strong winds, try to keep the windows closed so as to prevent dust from entering the cab and affect the breathing and observation of the driver. In windy weather, road conditions are also very complicated. Stone blowing, standing sandstorms and objects left on the road will affect the normal traffic of vehicles. Therefore, the driver should pay close attention to the road surface, grasp the steering wheel, and insist on driving at low speed. If you drive too fast, the possibility of rollover will increase. 3. avoid driving too close to vehicles when driving in windy weather, especially avoid large trucks being out of control or running on the road for a long time.
In the dust storm operation, the driver's sight is affected, and the surrounding environment, pedestrians and non motorized vehicles may have accidents at any time, and are more prone to traffic accidents. Therefore, careful driving in windy and sandy weather is especially important.
1. when driving in strong winds, try to keep the windows closed so as to prevent dust from entering the cab and affect the breathing and observation of the driver.
In windy weather, road conditions are also very complicated. Stone blowing, standing sandstorms and objects left on the road will affect the normal traffic of vehicles. Therefore, the driver should pay close attention to the road surface, grasp the steering wheel, and insist on driving at low speed. If you drive too fast, the possibility of rollover will increase.
When driving in windy weather, avoid being too close. In particular, avoid large trucks out of control or roll over for a long time.