Design Application of LQS20000 Column Strength Test Bench

Abstract:

Analyzed the trend of the development of hydraulic powered support and column, this paper designs a column strength test bench with 20000KN working resistance which combined with the new release of GB25974.2-2010 for coal mine hydraulic support and jack technical conditions of Part 2 standard requirements. Through the practical application, it turned out that the test bench has reasonable structure, stable performance and it can meet all of the following Ф630 bore hydraulic support column factory test requirements. The trend of the mine-used hydraulic support column and the performed new criterion demands manufacturers to enhance the ability of test equipment. In this situation, the 20000KN column strength test bench our company designed and manufactured not only do the loading test, but also apply external load at columns by simulating the actual working conditions, which is essential to Inspection and testing of dual-extension hydraulic columns middle cylinder strength.

• Periodical: Advanced Materials Research (Volume 744)
• Pages: 128-131
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.744.128
• Online since: August 2013
• Authors: Peng Fei Lui, Xiao Wei Shao, Xiang Hui Meng
• Keywords: Column, Design Application, Strength Test Bench

References

[1] Zhang Yingliang, in: Status Quo and Development Tendency of Domestic Powered Support with Large Mining Height. Coalmining Technology, (2008).

[2] General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China (AQSIQ), China National standardizing committee, in: GB25974. 2-2010 Powered support for coal mine – Part2: Specification for power set legs and rams. Beijing: Standards Press of China, (2011).

[3] Wang Faguo, in: The end hydraulic bracket and advanced manufacturing technology. Beijing: China Coal Industry Publishing House, (2010).