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Hatch cover testbed air inflow section with adjustable airflow direction

A technology of airflow direction and test bench, which is used in the testing of mechanical components, the testing of machine/structural components, and the sealing of engines. , Solve the effect of low adjustment accuracy

Active Publication Date: 2018-07-06
CHENGDU AIRCRAFT DESIGN INST OF AVIATION IND CORP OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the problem that the prior art cannot be finely adjusted, the present invention provides an airflow direction-adjustable airflow section of the hatch cover test bench that can perform more stable and fine adjustments to the airflow while improving the sealing performance

Method used

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  • Hatch cover testbed air inflow section with adjustable airflow direction
  • Hatch cover testbed air inflow section with adjustable airflow direction
  • Hatch cover testbed air inflow section with adjustable airflow direction

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0019] A hatch cover test bench air intake section with adjustable airflow direction, comprising a front bulkhead 1, a middle bulkhead 3, a rear bulkhead 4, a ventilation pipe 2, a splitter plate 5 and an adjustment device 6; the front bulkhead 1, the middle bulkhead The frame 3 and the rear bulkhead frame 4 are installed on the outside of the vent pipe 2, and the splitter plate 5 is fixedly installed inside the vent pipe 2. The plane direction of the splitter plate 5 is consistent with the axial direction of the vent pipe 2, and the vent pipe 2 is divided into upper and lower parts. The adjustment device 6 includes a handle 7, a tapered sheath 8, a threaded adjustment rod 9, a lower shaft support 10, an adjustment plate 11, a ball hinge support 12, an upper shaft support 13, and the lower shaft support 10 is installed on the splitter plate 5, The upper rotat...

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Abstract

The invention relates to a hatch cover testbed air inflow section with the adjustable airflow direction. The hatch cover testbed air inflow section comprises a front partition frame, a middle partition frame, a rear partition frame, a breather pipe, a splitter plate and adjusting devices. The front partition frame, the middle partition frame and the rear partition plate are all mounted on the outer side of the breather pipe, the splitter plate is fixedly mounted in the breather pipe, the plane direction of the splitter plate is consistent with the axis direction of the breather pipe, and the breather pipe is divided into an upper part and a lower part. The positions of adjusting plates can be precisely adjusted and fixed through the adjusting devices adopting thread adjusting, and the problem that the adjusting precision is not high in an existing scheme is solved. The two adjusting plates are independently controlled through the two sets of adjusting devices, independent control overairflow with different temperatures is achieved, and the problem about the adjusting precision of a temperature field in the existing scheme is solved.

Description

technical field [0001] The invention relates to a test device, in particular to an air intake section of a hatch cover test bench with adjustable air flow direction. Background technique [0002] In the process of aircraft development, it is necessary to design a test bench for high and low temperature fatigue tests on the hatch cover. The test bench is mainly composed of an intake section, a test section and an exhaust section. The air inlet section is used as the gas input end, and the gas flow direction needs to be adjusted to regulate the temperature field of the test section. [0003] The general method is to adjust the air flow by controlling the deflection of the adjustment plate inside the air intake section to different angles through the expansion and contraction of the external adjustment rod. Since the expansion and contraction of the adjustment rod cannot be accurately controlled and cannot be fixed well, and there is only one internal adjustment plate, resultin...

Claims

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Application Information

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IPC IPC(8): F16L55/07F16J15/06G01M13/00
CPCF16J15/06F16L55/07G01M13/00
Inventor 丁涛夏银叶长水柴燕龙胡静伟姬尧尧
Owner CHENGDU AIRCRAFT DESIGN INST OF AVIATION IND CORP OF CHINA
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