Research on axial force testing technology of impeller of fuel centrifugal pump
The axial force balance design of the impeller of the fuel centrifugal pump is an important way to improve the product performance,life,reliability and other technical indicators.With the development of aeroengine technology,more stringent requirements are put forward for the axial force balance design of the impeller of the fuel centrifugal pump;The existing design technology,simulation technology and testing technology cannot to accurately guide the axial force balance design of the impeller,resulting in frequent failures such as abnormal wear of the fuel centrifugal pump.This paper analyzes the structural characteris-tics and working principle of the fuel oil centrifugal pump,and designs a new technology to measure the axial force of the impeller during the working process of the fuel oil centrifugal pump.This technology transfers the axial force carried by the fuel oil centrifugal pump during the working process to the piston of the actuating cylinder,and then uses the closed-loop control principle to control the hydraulic pressure in the two chambers of the actuating cylinder to ensure that the piston position of the actuating cylinder re-mains unchanged under the axial force of the impeller.The axial force of the impeller can be calculated by the hydraulic pressure of the two chambers of the actuating cylinder and the hydraulic action area.The testing technology studied in this paper solves the problem of testing the axial force of the impeller during the working process of the fuel oil centrifugal pump,can effectively guide the axial force balance design of the impeller of the fuel oil centrifugal pump and optimize the product structure,thus improving the reliabil-ity of the product.
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维普
