A device and method for locking and dismounting a tail support rod of a wind tunnel test model
A technology of wind tunnel test and tail strut, which is applied in the field of wind tunnel test to achieve the effect of convenient and quick disassembly, simple structure and convenient disassembly
Active Publication Date: 2018-01-09
中国空气动力研究与发展中心超高速空气动力研究所
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Problems solved by technology
[0004] At present, there are no literature reports related to the locking and dismounting device and method of the tail support of the wind tunnel test model at home and abroad.
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[0040] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0041] figure 1 Schematic diagram of the structure of the tail support of the wind tunnel test model. The test model 1 is locked on the rolling sleeve 5 of the multi-degree-of-freedom model mechanism through the balance 2 and the tail rod 3, such as figure 1 shown. The tail strut 3 and the rolling sleeve 5 are frictionally and self-lockingly connected by a small-angle long conical surface. The connecting part of the tail strut 3 is a long small-angle cone shaft, and the connecting part of the rolling sleeve 5 is a corresponding taper sleeve. The taper shaft of the tail strut 3 and the taper sleeve of the rolling sleeve 5 are locked by a steel flat key 6 and a wedge key 4, the flat key 6 is used for guiding, and the wedge key 4 is used for locking. When installing the tail rod 3, first use the flat key 6 to align the tapered shaft of the tail rod 3 and inse...
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The invention provides a device for locking and dismounting a tail support rod of a wind tunnel test model. The device includes a device body, a first tip cone assembly, a second tip cone assembly and a spanner; the device body includes an ejection screw, a pull claw, a beam, a bolt and a nut, wherein the pull claw and the beam are connected through the bolt and the nut, the ejection screw is connected with a first dismounting tip cone and a second dismounting tip cone, and the beam is connected with a first positioning tip cone and a second positioning tip cone; the first tip cone assembly includes the first dismounting tip cone and the first positioning tip cone; the second tip cone assembly includes the second positioning tip cone, the second dismounting tip cone, two expansion sleeves, a guiding bolt and a guiding nut; and a guiding groove is designed between the expansion sleeves. A method for locking and dismounting the tail support rod of the wind tunnel test model includes tail support rod locking, wedge-shaped key dismounting and tail support rod dismounting methods. The device and method can reliably mount and conveniently and rapidly dismount the wedge-shaped key and the model tail support rod, thereby avoiding influence of repeated knocking on the wedge-shaped key on balance measurement accuracy and a model mechanism.
Description
technical field [0001] The invention belongs to the technical field of wind tunnel tests, and relates to a device and method for locking and dismounting a tail support rod of a wind tunnel test model. Background technique [0002] In hypersonic wind tunnel tests, in order to accurately simulate the spatial attitude of the test model, the most commonly used support method is the tail support, that is, the test model is locked on the rolling sleeve of the multi-degree-of-freedom model mechanism through the balance and the tail support rod. The tail strut and the rolling sleeve are frictionally and self-lockingly connected by a small-angle long tapered surface. The connecting part of the tail strut is a long small-angle cone shaft, and the connecting part of the rolling sleeve is a corresponding taper sleeve. The locking between the taper shaft of the tail support rod and the taper sleeve of the rolling sleeve is realized by a steel flat key and a wedge key, the flat key is use...
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IPC IPC(8): G01M9/04
CPCG01M9/04
Inventor 许晓斌王雄何超朱涛舒海峰谢飞张德炜孙鹏吕超
Owner 中国空气动力研究与发展中心超高速空气动力研究所