升降货梯http://www.jntr168.com/滤清器上盖有明显疲劳断裂特征说明机油滤清器承受交变载荷，滤清器实际振动加速度已经远远超出了本配件设计的承受能力。升降货梯滤清器上端盖折弯时圆弧部位出现了冷作硬化现象，由于冷作硬化部位与周围硬度差别过大，造成应力集中。升降货梯滤清器安装位置不合理造成滤芯振动过大，附加应力过大。
Cargo lifter filter covered with clear description of the fatigue fracture characteristics alternating loads oil filters, filter the actual vibration acceleration has far exceeded the capacity of the accessories design. When the cover appeared on the site of bending arc cargo lifter cleaner cold hardening, work hardening due to the surrounding parts of the hardness difference is too large, resulting in stress concentration. Cargo lifter filter cartridge installation position excessive vibration caused by the irrational, additional stress is too large.

所以应该改进升降货梯http://www.jntr168.com/滤清器上端盖圆弧部位结构，调整升降货梯滤清器安装位置。变更液压平台滤清器固定支架的厚度增加到8mm，增加厚度后测试其振动加速度小于10g，满足其安装要求采取以上改进措施后，上盖再未出现开裂。
So part of the structure should be improved arc cap on Huoti filter, adjust cargo lifter cleaner installation location. After the change of hydraulic platform to filter mounting bracket thickness 8mm, increasing the thickness of the test the vibration acceleration is less than 10g, the installation requirements to meet their improvements after taking over, cover again uncracked appear.