2015年5月19日星期二

Truck-Mounted Boom Pump history


Our concrete pump truck boom started started in the early 1980s, initially basically introduce CKD, or through the introduction of technology and trade binding mode technology to produce parts with some combination of the introduction of production.Early 1980s, domestic concrete pump was less than the total holdings of 200 units, concrete pump truck boom started is a blank. In the meantime, some of our large concrete pouring works are basically rely on imported equipment.After nearly 20 years of efforts, China's boom started concrete pump made considerable development, design standards, and manufacturing capabilities have been greatly improved. According to statistics, a manufacturer of concrete delivery pump has reached more than 100, distributed throughout the country. But because each manufacturer's technical level, production technology, production capacity is uneven, the product gap is also large.Our concrete pump truck boom started in recent years has been rapid development, stability and the process of the product, although not as good as abroad, but in price, service and other aspects, our products with a clear competitive advantage, and more in line with The actual construction of the domestic situation. Among them, Zoomlion, Sany concrete pump truck boom started in the development of walking in front of peers. Zoomlion developed a "concrete pump" standard, also developed a pump remote maintenance and positioning system. Sany concrete pump, both in the pressure pumping, pumping capacity, or stability, reliability, etc., with the famous brand products can be comparable to its pumping machinery products have been selling to the Middle East, North Africa and South Asia and other places.As can be seen from the national patent office issued 123 pumping machinery patents, patent domestic pumping machinery acquired mainly in the pump, pump the gate and pump control, hydraulic, electrical, etc, indicating that domestic enterprises in these areas more emphasis on research, which is relatively weak domestic pumping machinery fields. Followed by spare parts and jib aspect of the pump, the number of patents for nearly 20 years, only 100 items, which also includes foreign enterprises to apply for patents, which shows that our business-to-boom started pumping machinery R & D spending is also inadequate.Domestic concrete pump truck boom started late start because the past two years domestic enterprises have stepped up the introduction of technology and quality control, design and development of concrete pump truck boom started, technological innovation with independent intellectual property rights of a domestic boom started concrete booster pump development. The development trend of the major components of technology also represents the development direction of the domestic boom started concrete pump vehicle.Chassis engine to power the boom started concrete pump work and travel. Thus, the chassis engine performance directly affects the performance of concrete pump truck boom started. Currently boom started concrete pump commonly used with Volvo, Mercedes-Benz, Isuzu chassis, 2005 chassis has been using domestic boom started concrete pump market. With the domestic boom started concrete pump market matures, vehicle declining profit margins, to meet the different needs of users, the use of domestic and imported chassis chassis concrete pump truck boom started will occupy its own place in the market .
 
Domestic boom started concrete pump truck chassis selected almost all imported chassis. Wherein Isuzu chassis technology is mature, improve services in the country, the price is relatively cheap. Current domestic boom started concrete pump truck chassis with engines meet Euro Ⅱ or above criteria, the cities can meet the environmental requirements.Concrete pump truck boom started work often limited by the upper space, requiring a minimum height of the boom unfolded top, folding boom four or less generally use a single R or Z-shaped pattern. More than five boom due to space limitations, the type commonly used to achieve RZ combination folding boom extension and retraction, applicability, enhanced mobility and flexibility, especially in the construction of tunnels and indoor work efficiency has improved significantly. Initially domestic boom length 37 m, mostly in the last two years have increasingly long trend, the next few years, with the increasing demand, there will be a longer boom concrete pump truck to the market. Concrete pump truck boom started the leg work is often limited by the floor space, especially large boom started concrete pump. The manufacturers had to combine their experience, to find a solution. Thus, the boom started concrete pump outrigger design showing a personalized, diversified characteristics. Currently on the market to double swing and X-shaped legs mostly.

Longer and more flexible fabric boom outrigger structure, is the main trend of development of concrete pump truck boom started, many folding mixed use, make more flexible arm design, lighter weight. Legs in the form of more and more flexible, extensive use of unilateral leg to make concrete pump truck boom started to adapt to different site conditions.Pressure higher throughput greater will be the future trend of the domestic boom started concrete pump central pumping system. Early design domestic boom started concrete pump, concrete bore of about 200 mm, mostly concentrated in the output displacement 100 cubic meters / hour or less, since 2004, concrete delivery cylinder bore of 200 mm has exited pump products. Currently, the market is the most common delivery bore of 230 mm, the output of the displacement of 120 cubic meters / hour. With the boom started concrete pump truck boom is getting higher, bigger and bigger models, the delivery cylinder bore is also bigger and bigger, the country has reached the maximum of 260 mm bore, concrete output displacement is greater, But viewed from the machine configuration overall, due to overall height and width of the frame by, a larger cylinder bore concrete delivery has been greatly restricted the application of concrete pump truck boom started. Meanwhile, the concrete delivery cylinder bore, the greater the output displacement, engine power will be required the greater the chassis, when the working machine large displacement, the vibration caused by the boom will be greater. Therefore, the large bore boom started concrete pump, such as trying to replace a bore of 230 mm bore general, we need to do a lot of work, go a long way.Due to the progress of the increasingly high demand, now requires pumping capacity of 80 to 120 cubic meters / hour of engineering, more and more large displacement will become the future development direction of concrete pump truck boom started.

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