Research and development of large power valve-control filled hydrodynamic coupling for AFC

Li Guoping,Zhao Mei,Zhao Jiyun. Zhang Desheng

Strategic Study of CAE ›› 2011, Vol. 13 ›› Issue (11) : 39 -49.

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Strategic Study of CAE ›› 2011, Vol. 13 ›› Issue (11) : 39 -49.

Research and development of large power valve-control filled hydrodynamic coupling for AFC

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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

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Li Guoping,Zhao Mei,Zhao Jiyun. Zhang Desheng. Research and development of large power valve-control filled hydrodynamic coupling for AFC. Strategic Study of CAE, 2011, 13(11): 39-49 DOI:

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