In order to find out the cause of the damage to the steel bar shredder involved, the plaintiff H entrusted the court to identify the following matters:
1, whether the keyway gap between the shaft and the gear of the shredder involved in the case has become larger, whether there is a key falling off, and if so, what is the reason;
2. Are the driven gears, driven shafts, and keyways of the shredder involved in the case deformed? If so, what are the causes?
3. Are there problems with the steel bar heads processed by the shredder involved in the case being overlong or unable to cut? If so, what are the reasons?
4. Can the shredder involved in the case be used normally?
was entrusted by the court to conduct an appraisal and analysis on "whether the shredder involved in the case has the above quality problems."
0 identification and analysis results: The 1 identification and analysis expert group discussed the relevant information and on-site investigation of the shredder involved in the case and made a comprehensive quality and technical analysis, and made the following suggestions and conclusions: 21, the keyway of the active and passive shaft gears of the shredder has an excessive fit gap, and the quality problem of improper selection of the flat key material makes the flat key easy to loosen and fall off; 32, the shredder's active and passive shaft blade sets all have quality problems with overall axial offset, causing the equipment's operating vibration and load to increase, seriously affecting the normal operation of the equipment; 43, the shredder has problems with cutting steel bars, which is mainly related to the quality of the equipment itself; 54, the active end gear teeth of the shredder are broken and have the above problems, and the current state cannot be used normally. 6
