Harvester quality appraisal

Harvester is an agricultural machine used to harvest crops and transport them to storage bins. This kind of machinery can harvest, thresh and collect grains into storage silos in one go, and then transport the grains to transport vehicles via conveyor belts.
Using a harvester can significantly improve harvesting efficiency, reduce labor costs, and reduce labor intensity. It can efficiently harvest large-area crops, such as wheat, corn, soybeans, etc. Through mechanized harvesting, the labor intensity and time consumption caused by manual harvesting can be reduced.
In the case of harvester quality appraisal, Zhongke Testing can provide harvester quality appraisal services.

1. Combine harvesters can be divided into three types: tractor type, self-propelled type and backpack type.
2. According to the classification of feeding methods, combine harvesters can be divided into full-feeding type and semi-feeding type.
3 can be divided into three types: large, medium and small according to the feeding amount (or cutting width).
4, according to the walking device, can be divided into wheel type and crawler type.
5, according to the name of the crop, it can be divided into wheat combine harvester, rice combine harvester, rice-wheat combine harvester, corn combine harvester, rapeseed combine harvester, etc.

GB/T 8094-2023 Harvesting machinery Combine harvester Determination of grain tank capacity and grain unloading mechanism performance
GB/T 35488-2017 Combine harvester monitoring system
GB 19997-2005 Grain combine harvester Noise limit
GB/T 8097-2008 Harvesting machinery Combine harvester Test method
GB/T 20790-2006 Half-feed combine harvester Technical conditions
GB/T 29002-2012 Full-feed combine harvester Fuel consumption indicators and measurement methods
GB/T 29003-2012 Half-feed combine harvester Fuel consumption indicators and measurement methods
GB/T 8094-2005 Harvesting machinery Combine harvester Determination of grain tank capacity and performance of grain unloading mechanism
GB 16151.12-2008 Safety technical conditions for operation of agricultural machinery Part 12: Grain combine harvester
GB 10395.7-2006 Safety technical requirements for agricultural and forestry tractors and machinery Part 7: Combine harvesters, feed and cotton harvesters
0GB/T 6979.2-2005 Harvesting machinery Combined harvesters and functional parts Part 2: Evaluation of performance and characteristics defined in vocabulary
1NY/T 2848-2015 Reliability evaluation method for grain combine harvesters
2

XX Agricultural Machinery Sales Co., Ltd. and Mr. Y filed a lawsuit with the XX People's Court due to a contract dispute.
was entrusted by the court to conduct an appraisal and analysis on "whether there are quality problems" with the harvester involved in the case.
identification and analysis results: The
identification and analysis expert group discussed and conducted comprehensive quality and technical analysis on the relevant information and on-site investigation of the harvester involved in the case, and made the following suggestions and conclusions:
The frame of the harvester involved in the case has deformation, cracking, Cracks (repair welding), and remedial measures such as welding and repairing "triangular steel plates" and "reinforcement steel plates" are taken in many places to increase the rigidity of the frame and solidify the deformation of the frame. This is not only detrimental to preventing the expansion of the deformation trend of the frame, but also easily leads to track deviation and derailment; the welded steel plate in the tail oblique support has been removed, which will reduce the rigidity and strength of the frame, which is a quality problem.