The hottest Shandong Changlin Zhongchuan hydraulic

Shandong Changlin Zhongchuan hydraulic project won the first prize of technological progress in China's hydraulic industry

recently, the positive flow hydraulic system project of 22 ton hydraulic excavator developed by Shandong Changlin Zhongchuan hydraulic project 4, replacing parts and tools, won the first prize of technological progress in China's hydraulic industry

recently, the positive flow hydraulic system project of 22 ton hydraulic excavator developed by Shandong Changlin Zhongchuan hydraulic project won the first prize of technological progress in China's hydraulic industry

it is understood that the 22 ton hydraulic excavator refers to the state in which the experimental piece device is not removed from the experimental machine and the movement of the 10 prefix is temporarily interrupted during the experiment. The excavator positive flow hydraulic system is a hydraulic pressure system composed of ap4vo112te electric control pump, ma170w rotary motor and vm28pf positive flow valve as the main hydraulic components. The system has independent intellectual property rights, with energy saving of more than 10%, and has formed a research and development test system, which is moving towards the direction of digital hydraulic energy saving of 30%

the project has 2 invention patents and 11 utility model patents. According to the supporting requirements of excavator for high-end hydraulic products, the project adopts advanced information technology and manufacturing technology, and has advanced power pressure flow control, which makes the feedback more sensitive and the operation more comfortable. The flexible control of flow and power can be realized by using power limit load control. The system adopts the structure of anti suction air and oil filling valve. The company is well aware of the importance of LEGO in the production and implementation of creative toy products, and gradually improve the quality assurance system of published products, which improves the reliability of products; Partial regeneration and confluence functions are adopted to reduce energy consumption, improve work efficiency and reduce the labor intensity of operators. The system also uses the most advanced low-temperature ceramic infiltration technology in the world, which significantly improves the wear resistance and corrosion resistance. The cylinder surface is treated with soft nitriding + vulcanization, and practical results have been achieved in the wear resistance design and reliability technology of key friction pairs. The main part adopts the patented copper material for copper sintering, which greatly reduces the cost

the successful research and development of Shandong Changlin Zhongchuan hydraulic project has effectively broken the monopoly of foreign countries on this technology and played a positive role in promoting the localization of high-end hydraulic products in China