Strategic Study of CAE >> 2011, Volume 13, Issue 11
Research and development of large power valve-control filled hydrodynamic coupling for AFC
1. China Coal Zhangjiakou Coal Mining Machinery Co.,Ltd., Zhangjiakou, Hebei 075025, China;
2. School of Mechatronic Engineering, China University of Mining & Technology, Xuzhou, Jiangsu 221116, China
Next Previous
Abstract
As one of the most effective soft-start equipments for large power armoured face conveyor (AFC), valve-control filled hydrodynamic coupling has been the bottle-neck of the development of large AFC now. According to the resistance characteristic of AFC behind supports,the performance requirements of valve-control coupling were proposed.It was pointed that the design of working chamber of coupling and control valve, and manufacturing process are the key technologies of valve-control coupling. The working chamber was designed based on CFD method. The strength of pump wheel was analyzed using one-way fluid-structure interaction (FSI) and the structure of it was improved based on the FSI results. The high pressure external pilot controlled electro-hydraulic valve block was developed. A serial of technologies such as extra high-pressure assembly of keyless shaft connection and the casting of large copper alloy wheel were solved. And the valve-control coupling powered 1 000 kW was successfully developed. Experiments show that the control valve block has rapid response and the overall performance of valve-control coupling can satisfy the demand of AFC behind supports.
Keywords
armoured face conveyor(AFC) ; valve-control coupling ; soft-start ; control valve block ; CFD
References
[ 1 ] 陆文程,赵继云,张德生,等.大功率刮板输送机软启动技术分析[J].煤炭科学技术,2009,37(10):68-69,73. link1
[ 2 ] 刘应诚.液力偶合器实用手册[M].北京:化学工业出版社,2008.
[ 3 ] Rainald Finzel, Wolfgang Weber, Heinz H迸ller.Water operated fill controlled turbo couplings in AFC drive systems, design and operating modes [ EB /OL ] . [ 2010 -05 -10 ] .http: //www. voithturbo.com /fluid -couplings_literature.php3.
[ 4 ] 童祖楹.液力偶合器[M].上海:上海交通大学出版社,1988.
[ 5 ] 童祖楹,邵海滨.用流速抛物线分布流动模型预测偶合器的负荷特性[J].上海交通大学学报,1989,23(4):41-51. link1
[ 6 ] ANSYS Inc.ANSYS FLUENT 12.0 documentation [ CP /CD ] . Pennsylvania: ANSYS Inc, 2009.