The national science and technology support plan p

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On November 10, 13 experts including Zhan Jian, deputy director of the High Tech Department of the science and Technology Department of the autonomous region, lidongru, Deputy Secretary General of the China Machinery Industry Federation, and sun song, director of the science and Technology Bureau of Liuzhou came to our company, The project of "technical research on key components of earth moving machinery" in the national science and technology support plan undertaken by Liugong was accepted. Yuchuanfen, President of the joint stock company, Luo Wei, assistant president and President of the General Research Institute and other experts attended the meeting

the project was applied for approval in 2011 and passed the feasibility study. The implementation period of the project is from January 2011 to June 2014. The subject focuses on the technical research and application of key transmission parts and hydraulic parts of earth moving machinery. It has completed the research and development of 5-ton loader gearbox torque converter assembly, 7-ton and 8-ton loader wet drive axle, 20-ton hydraulic excavator main pump and main control valve, which are the manufacturers of 3-ton and Jinan Shijin domestic first-rate universal fastener testing machine. It has also conducted bench performance, durability and installation reliability test verification. The subject has overcome many common and key technologies such as electric proportional control, power matching, wet braking, flow distribution, etc., and achieved the goals of energy saving, consumption reduction and reliability improvement. The ability of technical research, product development and test analysis has been improved, and the objectives and tasks defined in the task statement have been well completed

the six key components developed by the subject have achieved more than 400 installed demonstration. We should look at the solar paper industry again; A multi-functional transmission test base and three large-scale production lines have been built, and the research, development and testing capabilities of transmission parts such as torque converter, gearbox and drive axle of earth moving machinery have been formed. If the accuracy of the strain gauge is not high, or the anti-aging ability of the glue used to fix the strain gauge is not good, or the material of the sensor is not good, the accuracy and service life of the sensor will be affected. Advanced torque converter, gearbox, drive axle Large scale manufacturing capacity of hydraulic valves

the subject has applied for 36 patents (including 22 invention patents) and granted 14 patents (including 3 invention patents); 15 enterprise technical standards and specifications have been prepared; Published 21 papers; It has trained 11 doctors (postgraduates), 27 masters and more than 20 professional technicians

at the meeting, the acceptance expert group listened to the work report of the undertaking unit and inspected the product samples, demonstration machines, test bases and production lines. The experts fully affirmed the technological innovation ability of our company and hoped that Liugong would continue to carry out high-tech research, undertake more national science and technology support plan projects, and lead to improve the technical level of earth moving machinery in China. After questioning and discussion, the expert group agreed that the pre test questions of the course passed the acceptance

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