Multifunctional lifting device for automobile wind tunnel test
A technology for elevating devices and automobile wind tunnels, applied in measuring devices, vehicle tests, aerodynamic tests, etc., can solve the problems of inconvenient installation and maintenance, inconvenient operation, single function, etc., and achieve simple structure and low device cost Inexpensive, easy-to-use effect
Inactive Publication Date: 2015-04-29
ZHEJIANG UNIV
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Problems solved by technology
[0003] The existing ground effect removal methods mainly include suction method, moving ground method, mirror image method and raising method. The suction method, moving ground method and mirror image method have high cost, complex structure, and inconvenient installation and maintenance.
The existing lifting method has a complex structure, inconvenient operation, and single function
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[0016] A multifunctional lifting device for automobile wind tunnel test, characterized in that it includes a test bench 1, a base hexagonal screw 2, a base 3, a lower rotating disc 4, a pressing plate 5, a pressing screw 6, a pillar 7, an upper rotating disc 8, a lower Screw rod 9, adjusting nut 10, upper screw rod 11, car model 12, small cross screw 13, simulated road support plate 14, simulated ground connection screw 15, simulated ground 16, large cross screw 17, large positioning plate 18, six-component force balance 19. Dimple 20, balance lower mounting hole 21, balance upper mounting hole 22, small positioning plate 23, large through hole 24, large threaded hole 25, annular groove 26, positioning boss 27, upper rotating disk through hole 28, balance through hole Holes 29; the car model 12 is fixed on four small positioning plates 23 by screws, and the four small positioning plates 23 are respectively fixed on the upper ends of the four upper screw rods 11 by welding, and ...
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The invention discloses a multifunctional lifting device for an automobile wind tunnel test. The multifunctional lifting device comprises an automobile model support, a simulated ground, a six-component balance and a support rotating mechanism. An automobile model is connected with adjusting rods through screws, the adjusting rods are fixed to an upper rotating disk, the upper rotating disk is connected with the six-component balance through screws, the six-component balance is fixed to a lower rotating disk, the lower rotating disk is tightly pressed on a base through two pressing plates, and the base is fixed to a test bed; a simulated ground supporting plate is fixed to the top ends of four supporting pillars through screws, and the simulated ground is fixed to the simulated ground supporting plate. The multifunctional lifting device is mainly applied to a boundary layer wind tunnel to remove the ground effect when the automobile wind tunnel test is carried out, the distance between the bottom of an automobile and the simulated ground and the levelness of the automobile model can be adjusted according to practical situations, the included angle between the automobile model and the incoming flow direction can be adjusted, forms of the automobile under various road conditions can be simulated by adjusting relative heights of the four adjusting rods, operation is simple and convenient, and efficiency is high.
Description
technical field [0001] The invention relates to a multifunctional elevating device for automobile wind tunnel test, especially used in boundary layer wind tunnels where there is no other effective method to remove the ground effect. Background technique [0002] Automobile is an important means of transportation now, and it is of great significance to study the aerodynamic performance of automobiles, and the wind tunnel is an important means to study the aerodynamics of automobiles. At present, there are very few dedicated automotive wind tunnels in China, and many research institutions have to conduct automotive wind tunnel tests in other wind tunnels. Non-automotive wind tunnels generally do not have special devices for removing ground effect, which brings inconvenience to automotive wind tunnel tests. less trouble. [0003] The existing ground effect removal methods mainly include suction method, moving ground method, mirror image method and raising method. The suctio...
Claims
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IPC IPC(8): G01M9/04G01M17/007
Inventor 宋小文刘锐郭长春亚森江·白克力周培庞岩林鹏哲
Owner ZHEJIANG UNIV