In order to adapt to the new situation and new requirements of statistical work, improve the business ability and professional quality of agricultural mechanization statisticians at all levels, and promote the improvement of the quality of national agricultural mechanization management statistics. From September 25th to 26th, the Agricultural and Rural Ministry of Agricultural Machinery Test and Identification Station in Qinghai Xining City held a class to improve the ability and quality of agricultural statisticians. This training class was held for the first time in recent years for statisticians of grassroots agricultural mechanization in cities and counties. The agricultural (agricultural machinery) departments and agricultural mechanization systems institutions from 23 provinces (autonomous regions and municipalities) are responsible for the statistics of agricultural mechanization. Nearly 220 statisticians participated in the training. Yao Chunsheng, deputy director of the Agricultural Machinery Experimental Identification and Identification Station of the Ministry of Agriculture and Rural Agriculture, Agricultural Mechanization Technology Development and Extension Station of the Ministry of Agriculture and Rural Affairs, and He Yanwu, director of the Qinghai Provincial Agricultural and Animal Husbandry Machinery Promotion Station, attended the opening ceremony and delivered speeches.
In the opening speech, Yao Chunsheng expounded the significance and necessity of holding the training course under the new situation, and introduced the work of the terminus in providing technical support for the national agricultural mechanization statistics in recent years, including coordinating the preparation of statistical annual reports and construction. In the new period, the statistical system, the strengthening of the statistical work system and the development of relevant education and training, etc., said that in the future work will continue to strengthen personnel training, conscientiously do technical support, promote accountability construction and data analysis applications.
In the training class, the person in charge of the Policy Research Office of the General Station introduced the overview and requirements of the statistical system of agricultural mechanization management. The three provinces (districts) of Hebei, Shanxi and Inner Mongolia carried out typical exchange speeches in conjunction with their respective work. The training class also invited statistical audits from China Agricultural University, the Ministry of Agriculture and Rural Planning and Design, etc., combined with the revision of the new version of the agricultural mechanization statistical survey system indicators, the mechanization level evaluation methods and indicators for the areas in charge, review points, etc. Made a detailed explanation. The software system technical support unit personnel explained in detail the functions and operational points of the national agricultural mechanization management statistical system. In conjunction with the training class, the Agricultural Mechanization Management Department of the Ministry of Agriculture and Rural Affairs, the Agricultural and Rural Ministry of Agriculture and Machinery Testing and Identification Station, and the Ministry of Agriculture and Rural Agriculture Agricultural Mechanization Technology Development and Promotion Station led the organization of the 2019 version of the national agricultural mechanization management statistical survey system implementation guidance The book was first published, providing a basis for the training of agricultural mechanization at all levels, providing a working guide for actual statistical operations.
The training and training courses were arranged in a compact, informative and practical manner. Participants in the training showed that they had a new understanding of the job. The confidence in doing a good job was boosted and the harvest was great. I hope that I can do more and better. Similar training courses to further promote the foundation of stable agricultural mechanization statistics
FESTO standard Aluminum Pneumatic Cylinder Tube for Pneumatic Cylinder
FESTO cylinder is composed of Cylinder Barrel, end cover, piston, piston rod, and sealing components.
The inner diameter of the FESTO cylinder barrel represents the magnitude of the cylinder output force. The piston should slide smoothly back and forth inside the cylinder, and the surface roughness of the cylinder should reach Ra0.8um. For steel pipe cylinders, the inner surface should also be plated with hard chromium to reduce frictional resistance and wear, and to prevent rusting. In addition to using high carbon steel pipes, the cylinder barrel material is also made of high-strength aluminum alloy and brass. Small cylinders use stainless steel pipes. Cylinders with magnetic switches or cylinders used in corrosion-resistant environments should use materials such as stainless steel, aluminum alloy, or brass for the cylinder barrel. FESTO cylinder piston adopts a combination sealing ring to achieve bidirectional sealing, and the piston and piston rod are connected by rivets without nuts.
FESTO cylinder end caps are equipped with intake and exhaust ports, and some also have buffer mechanisms inside the end caps. The end cover on the rod side is equipped with a sealing ring and a dust ring to prevent air leakage from the piston rod and prevent external dust from entering the cylinder. A guide sleeve is installed on the end cover of the rod to improve the guiding accuracy of the cylinder, withstand a small amount of lateral load on the piston rod, reduce the downward bending of the piston rod when it extends, and extend the service life of the cylinder. The guide sleeve usually uses sintered oil containing alloy and forward leaning copper castings. In the past, malleable cast iron was commonly used for end caps. To reduce weight and prevent rust, aluminum alloy die-casting was often used, and brass material was used for micro cylinders.
FESTO cylinder piston is a pressurized component in the cylinder. To prevent air leakage between the left and right chambers of the piston, a piston sealing ring is installed. The wear-resistant ring on the piston can improve the guidance of the cylinder, reduce the wear of the piston sealing ring, and reduce frictional resistance. Wear resistant rings are made of materials such as polyurethane, polytetrafluoroethylene, and synthetic resin for fabric clamping. The width of the piston is determined by the size of the sealing ring and the necessary length of the sliding part. The sliding part is too short, which can easily cause early wear and jamming. The materials commonly used for pistons are aluminum alloy and cast iron, while pistons for small cylinders are made of brass. The FESTO cylinder piston rod is the most important load-bearing component in the cylinder. High carbon steel is usually used, with a surface treated with hard chrome plating, or stainless steel is used to prevent corrosion and improve the wear resistance of the sealing ring. FESTO cylinder seals: The sealing of components in rotary or reciprocating motion is called dynamic sealing, while the sealing of stationary parts is called static sealing.
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