Every time an international construction machinery exhibition is like the Olympic Games, we can always see the gap and always see the front runners, whether it was last year's Munich International Construction Machinery and Equipment, Building Materials Machinery and Construction Vehicles Exhibition, or this year. The Las Vegas Construction Machinery Expo in the United States has made construction machinery practitioners excited and ashamed.
All along, the high-quality construction machinery market is dominated by foreign brands in China. In the large construction sites such as the Gezhouba in the Yangtze River and the Xiaolangdi in the Yellow River, there is almost no trace of domestically produced machinery. Looking at it, almost all of the rumbling sounds are Caterpillar's bulldozers and Komatsu's excavators.
Domestic machinery "foreign heart"
The engine of a construction machine is like the heart of a human being. It is the source of life for a machine. The heart is not good, and its physical condition can be imagined. However, the export products of China's construction machinery are basically imported engines, which seems to have become an unwritten rule in the industry. why? Domestic engines can not meet the requirements of foreign users.
According to the survey, domestic users are not very demanding on emissions, noise and other issues. Except for Shanghai, Guangzhou, Shenzhen and other places, the most important issues for domestic users are diesel consumption, oil consumption and reliable use. Sex. Therefore, there are many domestically produced engines used in domestic sales. However, even if domestic users use imported engines, they have become the standard for measuring the level of a mechanical grade.
If it is exported to the EU, North America and Australia, the requirements are completely different, such as emission indicators, noise, vibration, reliability, etc., have strict requirements. According to experts, the engine is the most environmentally sensitive component of all systems in construction machinery, especially in terms of vibration, noise and emissions. With the continuous improvement of the performance requirements of construction machinery by foreign users, the traditional vibration reduction technology can no longer meet the requirements, and it is imperative to adopt new vibration reduction technology.
In the future, on the one hand, modern design methods and means should be applied, and advanced manufacturing techniques should be adopted to improve the design and manufacture level of the engine, thereby reducing or eliminating the harmful exciting force generated during the working process of the engine; The engineering machinery engine damping system reduces the impact of engine vibration on the performance of engineering machinery and improves the competitiveness of China's construction machinery products in the international market.
Experts pointed out that the technical level difference between domestically produced engines and imported engines is relatively large. If the domestic level is not improved, the import volume will increase. From some examples, the five major construction machinery multinationals in the world have established their own engine systems to ensure the technical level of the whole machine.
Therefore, the domestic construction machinery industry can stand firm in the international market, can not further protect the domestic market, the engine is very important. At present, some internationally renowned companies want to further strengthen cooperation with domestic companies in engines, such as Caterpillar, Cummins, Perkins, Volvo and other companies in the United States, which provide opportunities for domestic companies to learn advanced foreign technology.
Foreign companies are still leading
After last year's exhibition of international construction machinery and equipment, building materials machinery and engineering vehicles in Munich, experts in the industry lamented that the technology development of people is too fast, and we have to catch up with one or two companies.
According to reports, the main direction of the development of engineering machinery technology is to realize the informationization of engineering machinery, highlighting the need for intelligent information processing functions, that is, the concept of "informatization of engineering machinery" to develop a new generation of intelligent IT engineering machinery. Intelligent information processing technology is a new technology that is urgently needed for the development of engineering machinery.
Integrated circuits, microprocessors, microcomputers and electronic monitoring technologies have been widely used in foreign construction machinery products. Some new energy-saving technologies have been promoted. The reliability, safety, comfort and environmental performance of construction machinery are highly valued. And to the direction of large-scale and miniaturization.
At present, foreign engineering machinery electronic control products have gradually formed serialization, modularization and standardization. Many world-renowned companies have developed their own controllers based on the characteristics of their own products, using the advanced microelectronics technology, and formed a series of modular hardware and software integration.
At this year's Las Vegas Construction Machinery Expo, the world's leading engineering and construction machinery manufacturers and parts manufacturers brought the latest advanced equipment and basic components. According to reports, many companies have demonstrated advanced control technologies, such as electronically controlled shifting, steering, electronic fault automatic diagnosis and monitoring technology in engineering machinery, engine electric injection to reduce fuel consumption, reduce harmful emissions from engine exhaust, and effectively protect surroundings.
In addition, new materials and new technologies are constantly appearing and widely used, such as the use of engineering plastics instead of steel plates, which greatly reduces costs and improves the appearance quality with new coating materials and processes. Operational control technology and electronic technology are at the leading level. The large company represented by Caterpillar moved the computer technical support system to the booth as a highlight. The system can monitor the sold equipment in real time, including fault mode detection, equipment operation monitoring, and major faults. Help, etc., for the user's sake, very human.
Behind is not just technology
According to statistics, the existing machinery and equipment in China's equipment industry has reached 32% of the age of more than 30 years. Most of these equipments are in the 50s and 60s. Construction machinery manufacturing enterprises are no exception. Such traditional equipment and manufacturing technology have a huge gap compared with foreign countries.
Due to the backward design methods and the constraints of manufacturing equipment and manufacturing processes, even the scientific research personnel spend their time and effort to develop new products from research, manufacturing, testing, testing, identification, production, and promotion. The long cycle, can be imagined, coupled with our efficiency, the ever-changing market will wait for us to occupy? The long development cycle often makes some domestic construction machinery outdated and backward from the beginning, and the products are eliminated due to lack of competitiveness. But this is only one aspect of backwardness.
According to experts, at this year's Las Vegas Construction Machinery Expo, compared with similar foreign products, China's exhibiting products are relatively close in performance and appearance, and the control system and functions are basically at the same level. But the design details are quite different. For example, in the aspect of product maintenance, foreign products have convenient devices in places where maintenance is required. The hood can be fully opened, and the engine and hydraulic pump are fully exposed for easy maintenance.
In terms of product safety design, the product warning label is complete, and you can understand the precautions without looking through the instructions. Like VIBROMAX, a manual pump with an emergency opening brake is installed on the machine. A warning sign is attached to the manual pump to inform the user of the circumstances under which the manual pump is used. On the surface, this is just a few details, not a big gap.
But if you think about it carefully, it is not difficult to find out that this is actually the biggest gap. Although it is only some details, it reflects the difference in concept. "People-oriented, customer first" is reflected in the nuances of construction machinery. Foreign advanced enterprises are more than just technology.
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