JPH07280702A - Traversing equipment for measuring instrument in wind tunnel - Google Patents

Abstract

PURPOSE:To provide traversing equipment easily disposed in an air duct while forming the air duct in a measuring part as a closed passage, and moreover allowing the testing conditions of temperature, wind speed, and the like to be measured in an optional position in the measuring part without needing an electric drive source. CONSTITUTION:In traversing equipment for moving a measuring instrument 31 into an optional position in the measuring part 6 of wind tunnel testing equipment, an elevating flap 33 is pivotally fixed in the tiltable state to the rear end part of a traverse body 29 provided with a traverse guide slit 30 extended in the width direction of an air duct 25, and a traverse body 32 holding the measuring instrument 31 is movably disposed in the traverse guide slit 30. It is so constituted that the traverse body 29 can be operated to move in the longitudinal direction of an air duct 25 while being moored through a wire 35 and that the tilting of the elevating flap 33 and the movement of the traverse body 32 can be operated from the outside of the measuring part 6 through the required number of wires 44, 38, 39.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traverse device for a wind tunnel measuring instrument.

[0002]

2. Description of the Related Art Conventionally, there has been a wind tunnel test facility for artificially forming a stable air flow in a tunnel-shaped wind tunnel and arranging a test model in the air flow to obtain various aerodynamic data. Are known.

FIG. 4 shows an example of the wind tunnel test facility. A bell mouth type air supply port 2 is provided at one longitudinal end of a tunnel-shaped wind tunnel main body 1 and an exhaust port 3 is provided at the other end. Is provided, and the air 5 sucked from the air supply port 2 is exhausted to the exhaust port 3 by the blower 4 arranged in the midway portion of the wind tunnel body 1 on the side of the exhaust port 3 to generate an air flow in the wind tunnel body 1. 5 ′, and an air flow 5 ′ to a test model (not shown) in the measuring unit 6 provided between the air supply port 2 and the blower 4.
It is possible to observe the flow of.

In such a wind tunnel test facility, especially when a topographic model is placed in the measuring section 6 to perform an environmental test or the like,
Since it is necessary to flow the air flow 5'having a temperature gradient in the height direction as in the actual atmospheric condition, the air flow heating device 7 is arranged on the upstream side of the measuring unit 6 and is sucked from the air supply port 2. Air 5
There is one that can be heated with a temperature difference in the height direction, and in the measuring unit 6 of this kind of wind tunnel test equipment, the front-back direction in the measuring unit 6 (the flow direction of the air flow 5 ′) , A traverse device for moving the measuring device in the three-axis directions of the left-right direction (width direction of the measurement unit 6) and the up-down direction (height direction of the measurement unit 6) at any position in the measurement unit 6. The test conditions such as temperature and wind speed can be measured at.

FIG. 5 schematically shows an example of a conventional traverse device. As shown in the drawing, on both sides of the upper part of the measuring part 6, the measuring part 6 is in the front-back direction (the direction perpendicular to the drawing of FIG. 5). Rack rails 8 extending in the respective directions are installed on both rack rails 8, and a transverse guide member 9 extending in the left-right direction at an upper position in the measuring unit 6 is provided on both rack rails 8 via traveling devices 10 provided at both ends thereof. A pinion 11 that is mounted and rotatably driven in both traveling devices 10 can mesh with each rack rail 8.

A transverse body 12 is engaged with the transverse guide member 9 so as to be movable in the left-right direction, and the transverse body 12 is rotatably driven by the transverse guide member 9 and extends in the left-right direction. The screw rod 13 is screwed through.

An elevating guide member 14 extending downward is attached to the traverse body 12, and the elevating guide member 14 is attached.
An elevating body 16 equipped with a measuring instrument 15 is engaged with the movable body in the vertical direction, and the elevating body 16 is provided with a screw rod 17 that is rotatably driven by the traverse body 12 and extends downward. Is screwed through.

When the position of the measuring instrument 15 is moved in the front-back direction, the pinion 11 of the traveling device 10 is rotationally driven so that the traverse guide member 9 travels along the rack rail 8 and the measuring instrument 15 is moved. When the position of 15 is moved in the left-right direction, the transverse body 12 is moved in the left-right direction by rotationally driving the screw rod 13, and when moving the position of the measuring instrument 15 in the up-down direction, the screw rod 17 is moved. If the elevating body 16 is moved in the vertical direction by rotationally driving, the test conditions such as temperature and wind speed can be measured at any position in the measuring unit 6.

[0009]

However, in the wind tunnel test facility for conducting the test in which the temperature condition of the air flow 5'is important such as the environmental test described above, the temperature of the ceiling and floor of the measuring unit 6 can be adjusted. A structure in which a single glass 20 is arranged on both sides of the measuring part 6 and a window part 22 of a multi-layer glass 21 is formed on the outer side, while being composed of a ceiling temperature control panel 18 and a floor temperature control panel 19 respectively. By arranging the body 23, the temperature condition of the air flow 5'is surely maintained as a double structure that can be observed from the outside of the wind tunnel.
When disposing the traverse device described above, it is necessary to support the rack rail 8 on the outer structural body 23 that is strong in strength, and the slit 24 that is opened in the upper portion of the inner single glass 20 and extends in the front-rear direction is provided. It has to be inserted so that the traverse guide member 9 of the traverse device has to be arranged, which causes a problem that the arrangement structure of the traverse device becomes complicated.

Further, the air passage 25 defined by the ceiling temperature control panel 18, the floor temperature control panel 19 and the two single glasses 20, 20 is originally smooth so as not to adversely affect the flow of the air flow 5 '. It is important to form a closed flow path surrounded by a continuous flat surface in order to improve the test accuracy, but in the state where slits 24 extending in the front-rear direction are opened in the upper part of the single glass 20 on both sides, a good flow of air is obtained. There was a fear that 5'may not be obtained.

Further, in the above-mentioned conventional traverse device, electric drive sources such as the electric motor 26 for driving the pinion 11 of the traveling device 10 and the electric motors 27, 28 for driving the screw rods 13, 17 are provided. Since it is necessary, there is also a problem that the temperature condition of the airflow 5'is limited by the heat resistant temperature of these electric drive sources.

The present invention has been made in view of the above situation, and the air passage of the measuring unit can be formed as a closed passage and can be easily arranged in the air passage, and an electric drive source is required. It is an object of the present invention to provide a traverse device that can measure test conditions such as temperature and wind speed at any position in the measurement unit without doing so.

[0013]

SUMMARY OF THE INVENTION The present invention is a traverse device for moving a measuring instrument to an arbitrary position in a measuring section of a wind tunnel test facility, which is smaller than a width of an air passage formed in the measuring section. A traverse body formed in a plate shape having a short width dimension and provided with a transverse guide portion extending in the width direction of the air passage, and a traverse body pivotally attached to the rear end portion of the traverse body so as to tilt the traverse body. Equipped with a lifting flap that forms an angle of attack for floating on the air flow flowing in the road to a required height, and a traverse body that is movably arranged in the longitudinal direction of the traverse guide portion and holds a measuring instrument. , Through the required number of wires that are fastened to both sides of the front end portion of the traverse body and extend toward the upstream side in the flow direction of the air flow, and guide the other end to the outside of the measurement unit to wind and rewind Mooring the traverse body It is configured such that it can be moved and operated in the front-back direction of the air passage, and that the tilting operation of the elevating flap and the moving operation of the traverse body can be operated from outside the measurement unit via a required number of wires. The present invention relates to a traverse device of a wind tunnel measuring instrument.

[0014]

Therefore, according to the present invention, the traverse device can be floated and placed on the airflow flowing in the air passage while tethered by the wire, so that the air passage can be formed as a closed flow passage. By moving the levitation position of the traverse body back and forth in the air passage by winding and unwinding the wire from the outside of the measurement unit, the measuring instrument is moved in the front and back direction of the air passage, and the wire from outside the measurement unit is moved. The traverse body is moved to move the measuring instrument in the width direction of the air passage, and the lifting flap of the traverse body is tilted from the outside of the measurement section via a wire to change the flying height of the traverse body for measurement. Since the device can be moved in the vertical direction, it is possible to measure the test conditions such as temperature and wind speed at any position in the measurement unit without the need for an electric drive source.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show one embodiment of the traverse device of the present invention, and the parts denoted by the same reference numerals as those in FIGS. 4 and 5 represent the same parts.

As shown in the drawing, a traverse body 29 formed in the shape of a plate having a width slightly smaller than the width of the air passage 25 formed in the measuring section 6 is arranged in the air passage 25, and the traverse body 29 is provided. A transverse guide slit 30 (transverse guide portion) extending in the width direction of the air passage 25 is opened in the transverse passage 29, and a transverse body 32 holding a measuring instrument 31 is provided in the transverse guide slit 30. 30 is movably engaged in the longitudinal direction.

At the rear end of the traverse body 29, an elevating flap 33 for forming an angle of attack for placing the traverse body 29 on the air flow 5'flowing in the air passage 25 and levitating it to a required height. Is pivotally attached via a plurality of hinges 34 so as to be tiltable.

Further, one ends of the wires 35 are secured to both sides of the front end portion of the traverse body 29, and the wires 35 are fixed.
Extends toward the front of the air passage 25 (upstream side in the flow direction of the air flow 5 ′), is guided to the outside of the measurement unit 6 through the through hole 36 formed in the floor surface, and the other end is wound around the winch device 37. The traverse body 29 is held so that it can be unwound and rewound so that the traverse body 29 can be moved in the front-rear direction of the air passage 25 while being anchored.

Further, one ends of the wires 38 and 39 are fixedly secured to both side portions of the traverse body 32, and the wires 38 and 3 are fixed.
9 extend to the outside in the width direction of the air passage 25, and are further directed to the front of the air passage 25 (upstream side in the flow direction of the airflow 5 ′) via sheaves 40 provided on both sides of the lower surface of the traverse body 29. It extends and is guided to the outside of the measurement unit 6 through a through hole 41 formed in the floor surface, and the other end is held by the winch devices 42 and 43 so as to be rewound and unwound.

Further, one end of each wire 44 is secured to both sides of the rear end of the elevating flap 33, and each wire 44 is fixed.
Extends toward the front of the air passage 25 (upstream side in the flow direction of the airflow 5 ′) through sheaves 45 provided on both sides of the lower surface of the traverse body 29, and extends from a through hole 46 formed in the floor surface. The winch device 47 is guided to the outside of the measuring section 6 and the other end
It is held so that it can be wound and unwound.

Then, the traverse body 29 is connected to the wire 35.
When the wire 35 is wound up by the winch device 37, the floating position of the traverse body 29 advances toward the upstream side, In contrast to the winch device 37
When the wire 35 is rewound by the above, the floating position of the traverse main body 29 retreats toward the downstream side. Therefore, by moving the traverse main body 29 in the anteroposterior direction of the air passage 25 while anchoring the traverse main body 29, the measuring instrument 31 is moved. It is possible to move in the front-back direction of the air passage 25.

Further, when the wire 38 is wound by the winch device 42 on the right side and the wire 39 is unwound by the winch device 43 on the left side as viewed from the flow direction of the air flow 5 ', the transverse body 32 is moved to the transverse guide slit 30. When the wire 38 is unwound by the winch device 42 on the right side and the wire 39 is wound by the winch device 43 on the left side, the transverse body 32 is moved to the transverse guide slit 30. Since it moves to the left along the traversing body 32, it is possible to move the measuring instrument 31 in the width direction of the air passage 25 by moving the traverse body 32 from outside the measuring section 6 via the wires 38 and 39.

Also, the winch device 47 allows the wire 44
If the wire 44 is rewound by the winch device 47, the rear end of the elevating flap 33 tilts upward as the rear end of the elevating flap 33 tilts downward and the angle of attack increases. As a result, the angle of attack is reduced, so that it is possible to move the measuring device 31 in the vertical direction by changing the flying height of the traverse body 29 by tilting the lifting flap 33.

However, when moving the traverse body 29 in the front-rear direction of the air passage 25 while tethering the traverse body 29, a winch device 37 for moving the traverse body 29 in the front-rear direction of the air passage 25 and a traverse body. The winch devices 42 and 43 for moving the 32 and the winch device 47 for tilting the lifting flap 33 are operated in synchronization with each other, and the floating position of the traverse body 29 is set to the air passage 25.
It is necessary that the position of the transverse body 32 and the elevation angle of the elevating flap 33 do not fluctuate even if they are moved in the front-back direction.

Therefore, according to the above-described embodiment, the traverse device can be placed on the air flow 5'flowing in the air passage 25 while being tethered by the wire 35 so as to be levitated. The structure 23 does not need to adopt a complicated arrangement structure in which the rack rail is supported and the traverse device is arranged by inserting the slit extending in the front-rear direction which is opened in the upper part of the inner single glass 20. 18 and floor temperature control panel 19
The air passage 25 defined by the single glass 20 and the both single glasses 20 and 20 can be a closed flow passage surrounded by a smooth continuous flat surface, and a favorable air flow 5'is formed to improve the test accuracy. Can be greatly improved.

Furthermore, it is possible to move the measuring instrument 31 by a wire operation from the outside of the measuring unit 6 and measure the test conditions such as temperature and wind speed at an arbitrary position inside the measuring unit 6 without requiring an electric drive source. Therefore, it is possible to solve the conventional problem that the temperature condition of the airflow 5'is limited by the heat resistant temperature of the electric drive source, and it is possible to perform a test in a wider range of temperature conditions than the conventional one.

Further, since the traverse device is placed on the airflow 5'flowing in the air passage 25 so as to be levitated, the traverse device can be uniformly supported by the lift force without causing the flexure of the traverse device. Even if the size is increased, the position of the measuring device 31 can be accurately set.

The traverse device for the measuring instrument in the wind tunnel of the present invention is not limited to the above-mentioned embodiment, but may be used for other than the wind tunnel test equipment for carrying out the environmental test by the air flow having the temperature gradient in the height direction. It can also be used in a wind tunnel test facility, and on both sides of the traverse body, the traverse body is always extended outward by elastic bodies so that the traverse body is fixed in position on both side walls of the measuring section and pulled inward by wire operation to fix the position. Needless to say, a stopper that can be released may be provided, and other various changes may be made without departing from the scope of the present invention.

[0030]

According to the traverse device for a wind tunnel measuring instrument of the present invention described above, various excellent effects as described below can be obtained.

(I) Since the traverse device can be placed in the air passage by itself and arranged very easily, it is not necessary to employ a complicated arrangement structure as in the conventional case, and a flat surface that smoothly connects the air passage is provided. It can be an enclosed closed flow path, and a good flow of air can be formed to significantly improve the test accuracy.

(II) Since the measuring instrument can be moved by a wire operation from the outside of the measuring section and the test conditions such as temperature and wind speed can be measured at an arbitrary position inside the measuring section without requiring an electric drive source. It is possible to solve the conventional problem that the temperature condition of the air flow is limited by the heat resistant temperature of the electric drive source, and it is possible to perform a test in a wider range of temperature conditions than before.

(III) Since the traverse device is placed on the airflow flowing in the air passage so as to be levitated, the traverse device can be uniformly supported by the lift force without causing the flexure of the traverse device. However, the position of the measuring instrument can be set accurately.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a view taken along the line II-II in FIG.

3 is a view in the direction of arrow III-III in FIG.

FIG. 4 is a side view showing an example of a wind tunnel test facility.

FIG. 5 is a front view showing a conventional example of a traverse device.

[Explanation of symbols]

 5'air flow 6 measurement part 25 air passage 29 traverse body 30 traverse guide slit (transverse guide part) 31 measuring instrument 32 traverse body 33 lifting flap 35 wire 38 wire 39 wire 44 wire

Claims (1)

[Claims] 1. A traverse device for moving a measuring instrument to an arbitrary position in a measuring portion of a wind tunnel test facility, which has a plate shape having a width dimension slightly shorter than a width of an air passage formed in the measuring portion. A traverse body having a transverse guide portion formed and extending in the width direction of the air passage, and a traverse body pivotally attached to the rear end portion of the traverse body so as to be tiltable so that the traverse body is placed on the airflow flowing in the air passage. The traverse body is provided with an elevating flap that forms an angle of attack for levitating to a required height and a traverse body that is movably arranged in the longitudinal direction of the traverse guide portion and holds a measuring instrument. While anchoring the traverse body via a required number of wires that are fastened at one end to the upstream side in the flow direction of the air flow and the other end is guided to the outside of the measurement section and held so that it can be wound and unwound. Move forward and backward in the wind path A traverse device for a wind tunnel measuring instrument, which is configured to be operable, and is configured to be able to operate the tilting operation of the elevating flap and the moving operation of the traversing body through a required number of wires from outside the measurement unit. .