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Dynamic loading device for rotary shaft balance

A technology of dynamic loading and rotating shafts, which is applied in the field of wind tunnel testing, can solve problems such as missing devices, and achieve the effects of good cost-effectiveness, improved accuracy, and low maintenance costs

Active Publication Date: 2017-02-15
LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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  • Abstract
  • Description
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Problems solved by technology

The dynamic loading of the rotating axis balance is a relatively new technical field in China. At present, there is no specific device for it in domestic wind tunnels. There are related records in foreign wind tunnels.

Method used

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  • Dynamic loading device for rotary shaft balance

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] Such as figure 1 As shown, in order to ensure the normal operation of the balance, there must be a stand for support. The stand is welded with rectangular steel. The stand not only plays the role of supporting the balance, but also serves as a fixed support The power system that drives the balance to rotate.

[0022] A driving motor is fixed on the platform, and the driving motor is used to provide power output. The power is transmitted to the small pulley through the belt through the lar...

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Abstract

The invention discloses a dynamic loading device for a rotary shaft balance, which comprises a rack, a driving motor arranged on the rack and a power output shaft arranged on the upper end face of the rack, and is characterized in that a power output end of the driving motor is connected to the power output shaft through a belt, one end of the power output shaft is connected to a dynamic loading device through the rotary shaft balance, and the other end of the power output shaft is connected to a slip ring electricity introducing device through a coupling. The dynamic loading device disclosed by the invention solves a loading problem of domestic rotary shaft balances, improves the measurement accuracy of the rotary shaft balance, and fills a gap in domestic related fields; and compared with similar products abroad, the dynamic loading device is better in efficiency-cost ratio, more convenient in use and low in maintenance cost.

Description

technical field [0001] The invention relates to the field of wind tunnel tests, in particular to a dynamic loading device for a rotating shaft balance. Background technique [0002] The rotating axis balance is mainly used for the wind tunnel test of propeller aircraft slippery effect, and can directly and accurately measure the propeller load. Rotary axis balance calibration includes static loading and dynamic loading. Static loading is the same as conventional balance calibration. Dynamic loading requires a load calibration on the balance at a certain speed to obtain an accurate balance formula. The dynamic loading of the rotating axis balance is a relatively new technical field in China. At present, there is no specific device for it in domestic wind tunnels, and there are related records in foreign wind tunnels. At present, the rotational speed of the conventional rotating shaft balance is within 10,000 rpm, and the foreign loading device can apply the rated load within...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/06
CPCG01M9/062
Inventor 吴福章别云朋钱志高田斌赵亮亮
Owner LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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