装载机拉杆弯曲及铲斗收斗不到位的解决方法

工作装置作为装载机的核心组成部件,其工作性能的好坏将直接影响到整个装载机的工作效率和经济性指标。针对装载机工作装置出现的拉杆弯曲、铲斗收斗不到位两种故障进行了分析,充分考虑了用户利用“靠挡块功能”等操作习惯和不同的个性操作对拉杆弯曲、铲斗收斗不到位的影响,细化工作装置的铲掘、卸料、收斗、举升和运输等不同工况的极限位置及转接过程中拉杆等的受力分析,按照机-液结合的整机系统思考方法,提出一种液压泄荷阀调整的经验方法,可有效地防止拉杆弯曲的两种工况发生。尤其是在两种故障关联处的摇臂与动臂座梁之间焊接卸载限位块,既防止了拉杆受弯,又避免了铲斗与动臂间的冲击,保证了收斗角的稳定,有效解决了上述两类问题。通过近三年时间的市场验证,收到了良好效果。

Solving Method for Tilt Link Bending and Inadequate Bucket Rolling back of a Loader

As an important part of loader, the performances of work attachment exert a direct influence on work efficiency and economic indexes of the complete machine. Two failures of a work attachment, tilt link bending and inadequate rolling back of the bucket, are analyzed. Influences of customer operating habits, such as relying on link stopper, and different personalized operations on the two failures are fully taken into account. Limit positions of a work attachment under different work conditions, digging, dum...