Concrete pump truck control technology

With the continuous expansion of investment in infrastructure construction of highways, railways and water conservancy, and the constant development of high-rise buildings in China, the level of concrete construction technology continues to increase, the quality of concrete construction is also getting higher and higher, and the demand for concrete pump trucks also increases The bigger it is. Concrete pump truck is a highly integrated electrical and mechanical products, due to poor working conditions, work intensity, machine automation and intelligence is very important. The current production of concrete pump truck, the control system has been from the initial discrete components of the relay control method to the use of programmable logic controller control mode conversion, take full advantage of digital control technology, intelligent sensor technology to achieve pumping, arm Frame and engine control and fault detection, including the following: Pump displacement stepless speed regulation by adjusting the wireless remote control or control panel potentiometer to produce continuous changes in the electrical signal input to the controller, the controller output PWM The signal drives the displacement control proportional valve to regulate the opening of the proportional valve so that the pumping speed can realize stepless speed regulation and change the pumping capacity. Automatic high and low pressure switch pump in the pumping process has a large displacement of low pressure and high pressure small displacement of two working modes, the conventional approach is to pour hydraulic piping manual switching. Automatic way is to reach the pre-set working pressure of the system, the pressure sensor to control the solenoid valve to automatically switch between high and low voltage to improve efficiency. Automatic return of concrete piston Simply press the button, so that the pump piston head automatically returned to the sink, shortening the inspection and replacement of the piston time. Anti-blocking tube technology control plugging pipe pressure sensor using real-time monitoring of pipeline pressure, when congestion occurs. Pressure sensor will be over-high pressure in the pipeline to the control system abnormal signal, issued a warning, and automatically take counter-measures such as anti-pump or stop. Engine speed closed-loop control Install the sensor to detect the engine speed, when the load increases causing the engine speed to drop, the control system immediately issued an instruction to increase the throttle. Conversely, the control system issues a command to reduce the throttle. By controlling the closed-loop control system, you can make the engine always maintain the optimal speed set. Fuel optimization control application optimization control theory, combined with fuel injection system and speed control technology to reduce engine fuel consumption, to achieve energy-saving purposes. Wireless remote control system consists of transmitter and receiver, remote control distance of more than 100m, to achieve the control of each section (boom speed, etc.), positive pump, anti-pump, pump displacement regulation, engine speed control and emergency stop. With automatic conversion search function to avoid the simultaneous operation of multiple cars and other radio signals interference. In the radio interference in the construction area, you can use wired control. When working on a small site, a single-sided work system is set to automatically lock the swivel range of the control system so that the pump truck can only be constructed on one side. At this time, only one leg on one side needs to be fully deployed, reducing requirements for the work site. Anti-rollover protection concrete pump truck legs automatically expand to the ground, the leg position and the whole level of a series of tests, if there are problems will alarm and lock the arm so that it can not move. When the boom is in motion, the system will always monitor the stability of the vehicle. When it is found that the four outriggers are under uneven force and the pump truck is unstable, the boom will automatically stop the movement to the dangerous direction and at the same time issue a warning to the maximum extent Ensure safety. Intelligent boom system At present, most of the pump truck's boom can only be controlled by the pump workers directly to each boom exhibition, the boom moves to the target position. The intelligent boom each arm and center of rotation are equipped with the detection position of the angle sensor, the control system to achieve closed-loop control. Operation, only need to give the end of the discharge arm pump boom position, multi-arm coordination will be able to achieve the action, the arm automatically move the best to the target location. You can also preset the movement path of the discharge end of boom at the teaching learning mode, and then the boom automatically returns to the initial position of memory and moves to the end position according to the memory process to realize automatic continuous fabric. If there is an obstacle, by entering a certain amount of data, limit the work area of ​​the entire bodywork and automatically avoid obstacles. Intelligent diagnostic technology in the pump truck prone to failure of the detection sensor parts installed, the acquisition of technical status information equipment and sent to the control system, the application of neural networks, expert systems and other software for intelligent diagnosis, and through the man-machine interface to communicate with the operator , Clearly shows the location of the fault and type to guide the maintenance. The job record control system can display and record the cumulative working hours, the number of pumping and pumping concrete side, as well as the working hours of this operation, the number of pumping and pumping concrete side, to provide a reference for maintenance and leasing business .

Intelligent Bidet Cover

Intelligent seat cover : E2200/2100/2101/2102/2103. PP or UF top cover for optional

Main functions:
Rear wash, feminine wash, massage wash, kid wash, Seat heating, warm air drying, Soft close, seat sensor, night light, Water temp adjust, air temp adjust, seat temp adjust, nozzle adjust, Instant water heating, IPX4 water proof, Side control panel, remote control, Energy saving mode
Direct factory with professional R&D department, product range covers Smart Toilet, Bidet cover, toilet seat, tank fittings, flush tank, flush valves, and Intelligent Toilet.


Intelligent Bidet Cover,Smart Toilet Cover,Intelligent Toilet Seat,Electronic Seat Cover

XIAMEN JIEENTE IMPORT AND EXPORT CO.,LTD , https://www.jieentexm.com