An adjustable sample loading platform for flat-plate wind tunnel experiments
An adjustable technology for wind tunnel experiments, applied in wind tunnel experiments and mechanical fields, can solve the problems of large size, complex mechanism, difficulty in adjusting the position and posture of samples, etc., and achieve the effect of convenient operation, simple structure and low manufacturing cost
Active Publication Date: 2019-10-22
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
[0003] The traditional sample loading platform does not have the function of adjusting the pose, and the pose of the sample can only be guaranteed by the machining accuracy of the loading platform, which requires very high machining accuracy of the platform, and it is difficult to ensure that the sample meets the requirements pose
[0004] Using the fine-tuning platform as the loading platform of the sample, because the fine-tuning platform often does not exceed three degrees of freedom, it is difficult to achieve the purpose of adjusting the pose of the sample
However, the multi-degree-of-freedom fine-tuning platform is often too complicated in structure and too large in size, and cannot be used as a loading platform for flat-plate wind tunnel test samples.
Method used
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[0020] Specific implementation plan
[0021] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:
[0022] The adjustable sample loading platform for flat-plate wind tunnel experiments in this embodiment is characterized by: a micrometer head (1), a base frame (2), a support rod (3), a shaft sleeve (4), a base (5), Self-locking nut (6), joint bolt (7), non-elastic rope (8), rotating connecting ring (9) and loading plate (10);
[0023] There is a square through groove in the middle of the base (5), and the base (5) is installed on the test section of the wind tunnel and fixed to the wind tunnel wall through a threaded support rod (3). The lower surface of the base (5) is connected to the wind tunnel. The inner surface of the wall is flush, and the shaft sleeve (4) is sleeved on the support rod (3);
[0024] The upper end of the support rod (3) is connected with the base frame (2), and the base frame (2) is axially f...
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The invention discloses an adjustable sample loading platform for a flat-plate wind tunnel experiment, and belongs to the field of wind tunnel experiments and machinery. The platform mainly comprisesthree supporting differential heads (1), two loose joint bolts (7), a non-elastic rope (8), a rotary connecting ring (9) and a loading plate (10); wherein the three supporting differential heads (1) are fixed on the basic frame (2); the loading plate (10) is fixed on a second frame (2) sequentially through the first loose joint bolt (7), the non-elastic rope (8), the rotary connecting ring (9), the non-elastic rope (8) and the second loose joint bolt (7), the three differential heads (1) serve as fine adjustment devices, support the loading plate (10) and realize fine adjustment on the loadingplate (10), a test sample to be tested in a wind tunnel is loaded on the surface of the loading plate (10), and the surface of the loading plate (10) is flush with the inner surface of the wind tunnel wall. The adjustable sample loading platform is simple in structure, low in manufacturing cost and convenient to operate. The size of the adjustable sample loading platform can be changed accordingto actual requirements, and miniaturization is easy.
Description
Technical field [0001] The invention belongs to the field of wind tunnel experiments and machinery. It relates to a multi-degree-of-freedom loading platform for adjusting a sample, which is used for fine-tuning the sample in a flat wind tunnel experiment. Background technique [0002] In precision measurement, it is often necessary to adjust the position and posture of the sample to be measured to meet the requirements in advance. But the more freedom of adjustment, the more complicated the pose adjustment mechanism. And when the size of the pose adjustment mechanism is strictly limited, the problem will be more difficult to solve. When a small sample is placed in a wind tunnel to measure its influence on the air flow field, the position of the sample relative to the wall of the wind tunnel needs to be strictly limited. [0003] The traditional sample loading platform does not have the function of adjusting the posture, and the posture of the sample can only be guaranteed by the...
Claims
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IPC IPC(8): G01M9/04
Inventor苑伟政何洋吕湘连张凯旋王圣坤周子丹沈照翔
OwnerNORTHWESTERN POLYTECHNICAL UNIV