Hydraulic Excavator Bucket Teeth Load-Time Courses Measurement

Abstract:

Based on the bucket teeth load-time courses calculation model under bucket digging condition, the stresses on the hydraulic cylinder piston rods of boom and bucket and the real-time length of bucket hydraulic cylinder were set as measured variables, and a measuring method of the bucket teeth load-time courses was developed which had the advantages of less measuring points, simplified measurement process and low cost. The bucket teeth load-time courses were calculated by inputting the measuring data into the self-developed Constructing Hydraulic Excavators Load Spectrum software, and its characteristics of each digging step in one excavation cycle at digging macadam were analyzed. Then, using rain-flow counting module in FE-SAFE software, the statistical graphs of bucket teeth load-time courses were acquired which could provide the basis for hydraulic excavator reliability design and fatigue life prediction.

• Periodical: Advanced Materials Research (Volumes 945-949)
• Pages: 2048-2052
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.945-949.2048
• Online since: June 2014
• Authors: Xiao Li Hu*, Wei Yan, Qin Xiang, Yu Ting Xie
• Keywords: Bucket Teeth, Hydraulic Excavator, Load-Time Courses, Measurement

References

[1] W. Yang, Q. Y Qiu, J.J. Hu: Construction Machinery and Equipment, Vol. 35 (2004), pp.15-19.

[2] H. Cheng, R. Bai: Journal of Vibration, Measurement & Diagnosis, Vol. 31 (2011), pp.512-516.

[3] D.H. Fu: Construction Machinery and Equipment, Vol. 42 (2011), pp.24-26.

[4] L.D. Shi, S.H. Cao, L.P. Yu: Journal of Tongji University, Vol. 20 (1992), pp.395-402.

[5] Y.M. Teng, Research on the load spectrum of excavator working device test, Master degree thesis (2012).

[6] Z.D. Liu, Y.Y. Li, Q.S. Yang: Construction Machinery and Equipment, Vol. 44 (2013), pp.18-25.

[7] X.L. HU, Q. XIANG, H. ZHANG: Applied Mechanics and Materials, Vol. 401-403 (2013), pp.1091-1094.