The hottest pure electric heavy loader comes out 1

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Recently, a private enterprise in Dazu District of Chongqing spent 7 years to develop the first pure electric heavy loader in China. The machine can load 5-8 tons of goods, charge quickly for 1 hour, and can work continuously for 8-10 hours. The power cost of working for 10 hours is only 200 yuan, which is about 1000 yuan less than that of diesel loader, and it is environmentally friendly and energy-saving without exhaust gas

loader is a kind of mechanical vehicle widely used in highway, construction, mining and other construction projects. "Its engine is a diesel engine, and it needs to burn about 1200 yuan of diesel oil after working for 10 hours. If the loader is electrified, the cost will be greatly reduced." Although the probability of electromechanical appearance is not very high, Lu benqiang, chairman of a company in Chongqing, said that based on this idea, in 2009, he decided to develop a pure electric heavy-duty loader to seize the market opportunity

such as the replacement of metal materials and engineering plastics, Lu benqiang has invested more than 30 million yuan in scientific research funds and encountered more than 200 technical problems. In the final analysis, these problems are two major problems: one is that the other working state is that the battery system with high voltage and strong current that they need is not available on the market; Second, how to use the control system to release electric energy after solving the battery problem

at that time, there was no precedent or experience for pure electric loaders in the world. However, LV benqiang, who has been struggling in the machinery manufacturing industry for 20 years, firmly believes that "no one has what I have" is the core competitiveness of the enterprise

Lu benqiang led the R & D team to design a series of special processes to solve the battery problem, such as releasing electric energy with a slow-release system, and commissioned battery enterprises to produce ultra-high power batteries. For the matching control system research and development problems, we start from solving the coordination of each subsystem and the main control system. Finally, he solved a series of problems one by one and applied for 194 patented technologies, including 36 invention patents

at the beginning of 2015, all tests of the pure electric heavy-duty loader reached the standard, but the on-site test gave Lu Ben an important strategic opportunity that was still in the development period. It was a "blow to the head" - this pure electric heavy-duty loader could not lift 5 tons of sand and stone

"the bench test data is feasible, why the field operation is not?" After a famous old CNC expert in the aerospace field "felt the pulse", the problem was found - the previously designed operating system is in an ideal state, and the covering when shoveling sand and gravel on site, the speed of instantaneous power release, the coordinated environment and other factors will affect the effect of the matching pool system of the control system

Lu benqiang redesigned a set of control system to overcome the problems from power realization to function realization, sensor matching, data processing and adjustment, and the sample vehicle was successful in the field test. After three consecutive months of field tests, 10 hours a day, the field operability and stability of the sample vehicle have achieved the desired results. (Zhang Xiaoqin)

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