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Support for blade testing and blade testing device comprising support

A testing device and fan blade technology, applied in pump control, non-variable-capacity pump, machine/engine, etc., can solve the problem of unreliable fan blade efficiency parameters, large deviation of fan blade efficiency parameters, and difficulty in optimizing the motor and fan blades. Matching and other issues to achieve the effect of improving design capabilities and development efficiency, reducing structural wind resistance, and increasing test accuracy

Active Publication Date: 2015-12-23
SHANGHAI MALU RI YONG JEA GATE ELECTRIC +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Support for blade testing and blade testing device comprising support
  • Support for blade testing and blade testing device comprising support
  • Support for blade testing and blade testing device comprising support

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] according to figure 1 , figure 2 The shown bracket for wind blade testing includes a central shaft 31, and the two ends of the central shaft 31 are supported by two end caps 32, and each end cap 32 is fixed with a screw rod 38, so that the end caps 32 do not produce relative Movement, screw rod 38 bottoms are fixed with threaded column 39, and screw rod 38 and threaded column 39 constitute the base of support, and the cooperation of threaded column 39 and screw rod 38 can adjust the height of support. There are bearings in the end cover 32, so that the central shaft 31 can rotate in the end cover 32. The central shaft 31 is covered with two fastening discs 34, and the fastening discs 34 are between the end caps 32. The shaft 31 is in contact, and the fastening disc 34 is penetrated with a fixed rod 36, and the fixed rod 36 is fixed to...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00
Inventor 马宝发
Owner SHANGHAI MALU RI YONG JEA GATE ELECTRIC
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