Concrete pump truck, also known as boom pump truck. It is concrete transport equipment, pump truck arm, so that it not only horizontal transmission of power but also with vertical transport function; also has the characteristics of flexible and convenient transfer to the workplace. Therefore, the concrete pump truck is favored by people. In recent years, the development of concrete pump truck is very rapid, and it has been widely used in various concrete construction projects.
The concrete distributor is a concrete conveying machine used in conjunction with concrete delivery pumps (towing pumps, truck pumps). It acts as a manipulator. The concrete on the construction surface can be quickly and accurately delivered to any part of the working surface for continuous pouring, giving full play to the advantages of the two techniques, greatly reducing the labor intensity and cost, and improving the progress and quality of the construction. Ensuring the safety of workers at work.
Features & Functions od Concrete Pump Trucks
The concrete pump truck is developed on the basis of the concrete pump. Firstly, the concrete pump is installed on the truck as the concrete truck pump, and then a set of concrete distribution rods are installed on the concrete truck pump to become the concrete pump truck. At present, most of the concrete pump trucks produced in our country are mainly assembled. Most of the heavy chassis, hydraulic pump sets and jibs are imported from abroad. The technical performance and quality of domestic pumps are basically the same as those of foreign products, and the prices are relatively cheap. Hongdeli heavy Industries has the ability to develop and produce pump truck boom, we believe that in the near future, our concrete pump truck will be able to fully meet the needs of construction users in China.
The movement of the boom is accomplished by an imported, advanced touch block type precisely controlled valve group. The independent valve group has a system pressure regulating mechanism. It has the remote control operation function; in the remote control malfunction situation, may through the manual direct operation. The utility model relates to a distributing rod operating valve group controlled by a module, which can operate the movement of each arm bracket of the distributing rod and the rotation of the arm frame. For safety, the control system for the legs and arms of the pump truck is assembled on a functional selection valve. When operating the leg, do not operate the arm; conversely, the operation of the arm cannot operate the leg. The handle of each operating valve has three functions: the default middle position is closed. The handle moves forward or backward, causing the relative arm to move in the opposite direction. Turn clockwise or counterclockwise, as in the opening or closing of arms.
Evolution of Contrete Pump
In 1907, Germany began to research concrete pump and obtained a patent. Comell Kee, an American, patented the design of a concrete pump with mechanical crankshaft transmission; the first concrete pump was made, but it has not been used since its trial operation. In 1927, Fritz Hell in Germany designed and manufactured a concrete pump, which was successfully used for the first time. The vertical single-cylinder ball valve piston pump was made in Germany in 1930: it was driven by crank and rocker. The performance of this concrete pump is poor.
The Dutch J. C. Kooymann made great improvements on the basis of the vertical single-cylinder ball valve piston pump, which was changed from the vertical type to the horizontal type and operated by two connecting rods, which successfully solved the structural principle of the concrete pump and greatly improved the reliability of the work. It is the conceptual foundation of the development of many concrete pumps nowadays. Concrete pump began to be used in the 1930s, to the World War II concrete are in a small scale trial stage. After the second World War, the development and application of concrete pump were driven by the need for economic recovery and development. In the mid-1950s, Torkret, Germany, first developed a hydraulic pump using water as a working fluid.
Development of Concrete Pump Technology
The development of concrete pump technology has entered a new stage. In 1959, the first full-hydraulic concrete pump driven by oil working fluid was put into practice. The design, manufacture and pumping technology of concrete pump are becoming more and more perfect. In 1963, Challenge-cook Brothers Company of the United States developed squeeze concrete pump. In order to make the concrete pump flexible, mobile and convenient to transfer to the construction site, the development of concrete pump truck began in the 1960s. At the same time, in order to facilitate the construction of distribution in the site, the concrete pump truck is installed with the distribution rod that can rotate and stretch, which greatly improves the speed of concrete pouring.
The development history of concrete pump is closely related to the development of material engineering, mechanical technology, hydraulic technology and electronic technology. In the development of concrete pump, the key is the improvement of distribution valve. Each part of the concrete pump is composed of different mechanism or parts and bears different functions. Understanding and mastering the basic structure and working principle of each part of the concrete pump are of great help to the correct use and maintenance of the towing pump. The concrete pumping mechanism is the most important part of the whole concrete pump.