Support for blade testing and blade testing device comprising support

Abstract

The invention relates to a support for blade testing and a blade performance testing device comprising the support. The support for blade testing comprises a center shaft. The two ends of the center shaft are supported by end covers. The end covers are fixedly connected through supports. The support further comprises two fastening discs with which the center shaft is sleeved. Fixing rods penetrate the fastening discs to be fixed to the two end covers. Adjusting bolts clamp the fastening discs and are connected with supporting arms. Sliding grooves are formed in the supporting arms. Connecting rods are connected into the sliding grooves in an inserted manner. One end of each connecting rod is fixed through a nut, and the other end of each connecting rod is suspended. The support and the testing device have the beneficial effects that the testing device can effectively determine the reasons of the problems of motor efficiency and fan efficiency, the blade design capacity and developing efficiency are improved, and the design time is shortened; a support shaft system is rapid and accurate in centering, the structural wind resistance is small, the experimental precision is ensured, the universality is high, and the support is applicable to fans of various specifications.

Description

technical field [0001] The invention relates to a wind blade performance testing device. Background technique [0002] OEMs have higher and higher requirements for engine cooling modules, which require both compact mechanism design and higher power per unit volume. How to solve the heat dissipation problem under high power and high heat flux density puts forward stricter standards and requirements for the working performance of the heat dissipation module. The development of a high-performance heat dissipation module has become a key technical issue for increasing the power and economy of a vehicle engine, and the core design of the heat dissipation module is the design of the fan. This requires that under certain conditions, the selected fan blade and motor have the best operating point. Therefore, the device has very important practical guiding significance for the design of the fan. [0003] The calculation method of fan blade efficiency is mainly to measure the parame...

AI Technical Summary

Problems solved by technology

However, in the comparison of CFD analysis results, it is found that the fan blade efficiency parameters obtained through conversion deviate greatly from the CFD calculation results

Since the load state of the motor on the dynamometer is different from the load state in the wind tunnel test, there is a certain deviation between the obtained motor efficiency and the actual working conditions in the wind tunnel test, which will cause the converted fan blade efficiency parameters to be inconsistent. Unreliable

Therefore, it is difficult to achieve the best match between the motor and the blade

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