Domestic wheel loaders is from a low level, low-quality, low-cost, to meet the functional model to a high level, high quality, price, economical and practical transition. From imitation imitation transition to self-development, major manufacturers continue to investment in technology, using different technical route, technical innovation in key components and systems, to get rid of product design similar free status of its own characteristics and advantages, from low-level disorder cycle of competition emerged as the loader industry leader.
China loader industry in the development, some problems have become increasingly apparent. In particular, and serious barriers to entry is very low, vicious price competition led to low profitability, lack of marketing concepts, the market is difficult to expand, poor product quality and reliability, in addition, products and organizational structure and service upgrade aging increased costs and other factors is difficult to digest restricted the further development and quality improvement industry.
Therefore, Chinese enterprises must seize loader new developments, reflecting the differences in strategies and cost leadership strategy in product development, continue to strengthen the research and development system construction industry to a national enterprise technical centers and universities and research institutes as the main body, to build the value chain marketing, brand building, brand value, the only way to be invincible in the new situation.
According to market research center Yu Chi industry understood that China loader industry after nearly 50 years of development, especially in the past 10 next year, ultra-high-speed development, product technical quality has been greatly improved, the gap with the world advanced level has more smaller and smaller, it has been the world market, including the widely recognized by the most demanding European and American markets. In 2011, China's loader industry total sales of loaders 192,100 units, up 14.81 percent. Among them, the domestic market loaders 173,271 units, up 10.80%; total exports loaders 18,829 units, up 72.25 percent, export growth is much higher than sales growth.
Three quarters of 2011 demand loaders East China and North China's large area, where sales in East China loader national sales of 21.7%, 19.0% in North China; by product point of view, three quarters of 2011 5T product the largest market share for the 66.78% share fell 2.88 percentage points compared with 2010, followed by 3T products, the market share of 22.57%, the share increased by 2 percentage points compared to 2010. According to statistics, investment in fixed assets of our society, "five-second" period will continue to maintain a high growth rate, the growth rate will be around 20 percent, the state will further increase affordable housing construction, water conservancy construction, marine construction, railways, roads, urban public transport and infrastructure, electricity, gas engineering, transmission construction. By 2015, sales of loader industry will reach 30 million units, of which exports will reach 400 million units, optimistic about the prospects of China's loader industry.
At present, China enterprises around the loader to start a new round of energy-saving products and technology upgrading, focusing on upgrading the core system components, namely technical upgrading hydraulic systems and hydraulic components, transmission and drive components. It is worth mentioning that, with the domestic construction machinery products before the technology roadmap, the technical upgrading of China's loader industry has evolved from the simple to follow, follow the example of foreign advanced technology, gradually transformed into the world's leading technology basis, through technical innovation and further development the most suitable for the Chinese market Loader.
Fusion's hydraulic system changed and unchanged
At present, the international loaders advanced hydraulic system is completely variable load sensing hydraulic system, the main components, the operating and steering pump are load-sensing variable displacement pump, load sensing steering valve is a valve with load sensing multi-way valve. Prominent feature of the system is good operator comfort, high efficiency, energy saving effect is remarkable, but the high cost, except for a few special products, in China and around the world all in less developed countries with little or only has a small market share. To this end, China's loader industry and related insiders of the system is a lot of technical innovation, while maintaining its advanced nature, large-scale reduction in manufacturing costs. At present, the development and improvement work has made considerable achievements, mainly for the following several different structural types.
Improved multi-valve full variable load sensing hydraulic system
The system is still full variable load sensing hydraulic system, which focuses on innovation multi-way valve. Multi-way valve body for low-cost ordinary multi-valve, simply add a little logic valve structure, both cost less than the sum of multiple load sensing valve 1/4 of the system performance and total variable prevalent abroad load-sensing hydraulic system equivalent to the total cost is only about 70%.
Unloading confluence given variable hydraulic system
Given variable confluence unloading part of the hydraulic system of the steering remains with the load sensing variable displacement pump load sensing steering valve, working part by dosing pumps and general multi-valves, the system added a priority valve, shuttle valve, control valve and unloading valves, constant pressure to complete the load-sensing variable displacement pump and metering pump confluence, realized the steering system for the load-sensing constant pressure variable, while working for the constant pressure variable system of two systems model. When the job reaches the maximum load, unload valve and reached the highest set pressure, the work of a metering pump at full unloading state. The system solves the overflow losses throttle and steering system overflow losses, as well as operation of the system to achieve the purpose of energy saving.
Compared with the full variable load sensing hydraulic system, the operation of the system, comfort, operational efficiency and its roughly equal, but the cost is only about 35% of the former, energy savings around 70% of the former. Compared with the overall quantitative system, which is about saving more than 70%, the cost is about 1.5 times. It can be said, given the confluence variable hydraulic unloading system is a very high cost of the system, there are some promotional value.
Improved multi-valve fixed variable confluence hydraulic system
This system is basically the first two comprehensive improvement of the system, turning part of the load-sensing variable displacement pump + load-sensing steering valve, the working part of the combination of the two - multi-way valve by a common multi-way valve and a small logic valves Working pump consists of dosing pumps and unloading valves, by priority valve dual pump confluence, basically realize the work, the steering system are the load-sensing variable. Compared with the full variable load sensing hydraulic system, the system operator comfort and operating efficiency and the roughly equal, but the cost is only about 50% of the former; compared with overall quantitative system that significant energy savings, cost about about 2 times the former. It can be said that the system is a cheap, high cost of a good system, a high promotional value. For more, please refer to the "2014--2018 depth analysis of China loader market report."
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