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[ China Agricultural Machinery Industry News ] Agricultural machinery can not only improve the efficiency of farming, but also increase the rate of agricultural mechanization, but farmers will also face difficulties in purchasing agricultural machinery. The eyes will not be both empty and empty. Here, the "old farm machinery" has five major measures for identifying the authenticity of agricultural machinery.
How to identify the authenticity of agricultural machinery? "Old farm machinery" to recruit
Zhang Hong, the former director of the Agricultural Machinery Safety Supervision Station of Gaoqing County Agricultural Machinery Bureau, has been engaged in grassroots agricultural machinery for nearly 40 years. During this period, he was responsible for the safety supervision and maintenance of agricultural machinery for more than 20 years. After retirement, he still pays attention to the development of agricultural machinery and has rich practical experience. On the occasion of the spring ploughing, he specially collected and sorted out some methods for identifying fake and shoddy agricultural machinery products. It is simple and practical, and it is beneficial for farmers to purchase agricultural machinery correctly.
Trademark recognition . The fake and inferior agricultural machinery is mostly the “three no†products without the manufacturer's name and address, no nameplate mark, and no product qualification certificate.
Appearance recognition . The general requirements for agricultural machinery are: the whole agricultural machinery is not deformed; the parts and parts are intact; the painted part can not have the lack of paint, the primer of the iron material must be coated with anti-rust paint; the countersunk head screw and the countersunk head screw It should be flush with the plane of the fixed part. If it does not hinder normal operation, a small amount of protrusion is allowed. The non-adjustable screw or screw should be tightened with oil after immersion. The threaded end of the screw should be at least two outside the plane of the nut. Screw, but the exposed part can not exceed 10 mm; all non-adjusting screws, bolts and nuts should be tightened tightly and locked according to the specified locking method (locking nut, split pin, wire, washer, etc.), and no wire can be used. Or iron nails instead of split pins; containers, pipes, joints, etc. containing fuel, lubricating oil, liquid medicine, water, etc. should be tight and there should be no leakage. The containers, pipes, joints, etc. of pneumatic devices should not leak; All the rotation, transmission and control of the agricultural machinery are flexible and without jamming.
Security identification . The agricultural machinery industry management department requires that all places where the user's personal safety may cause harm should be provided with safety protection devices. In contrast, fake and inferior agricultural machinery generally does not have reliable and complete safety protection devices.
Quality identification . Key inspections of key components of agricultural machinery should be carried out. The key components must be made of the specified materials and have special requirements. The heat-treated parts must not be deformed or cracked, and there is no squeaky sound when struck with metal objects. When inspecting the quality of general parts, look for cracks or deformation; rubber parts should pay attention to whether they are aging; metal parts should pay attention to the processing quality, surface finish, and the cooperation with related parts.
Test identification . General power machinery should be tested to see if it is easy and convenient to start, whether the operation is stable, and whether the sound is normal: for high-speed rotating agricultural machinery, pay special attention to its dynamic balance; after the agricultural machinery is running, it should also check the bearings and other places. Is there any overheating?