CN117928880B - Diversion equipment and diversion method for wind tunnel test - Google Patents
Diversion equipment and diversion method for wind tunnel test Download PDFInfo
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- CN117928880B CN117928880B CN202410333265.7A CN202410333265A CN117928880B CN 117928880 B CN117928880 B CN 117928880B CN 202410333265 A CN202410333265 A CN 202410333265A CN 117928880 B CN117928880 B CN 117928880B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a flow guiding device and a flow guiding method for a wind tunnel test, which belong to the technical field of wind tunnel tests and comprise a device base, wherein a support frame is fixedly connected to one side of the top of the device base, a test air pipe is fixedly connected to the top of the support frame, a plurality of first flow guiding mechanisms are fixedly connected to one side of the test air pipe, and a plurality of second flow guiding mechanisms are fixedly connected to one side, close to the first flow guiding mechanisms, of the outer wall of the test air pipe. The invention designs the first flow guiding mechanism, the second flow guiding mechanism, the flow guiding opening adjusting mechanism and the air speed testing mechanism, when the device is used, the rotation of the plurality of inner side flow guiding plates can realize the angle opening of the integral air inlet, the air inlet quantity is increased, and further, the change of the air speed of the plurality of hot wire type air speed sensors can be continuously observed, so that the air flow in the central area and the air flow on the side edges are as average as possible, and the testing efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of wind tunnel tests, and particularly relates to a diversion device and a diversion method for a wind tunnel test.
Background
The wind tunnel experiment in the aspect of hydrodynamics refers to an aerodynamic experiment method for arranging an aircraft or other object model in a wind tunnel and researching the air flow and the interaction of the air flow and the model so as to know the aerodynamic characteristics of an actual aircraft or other object, wherein the principle of the wind tunnel experiment is to fix the model or object of the aircraft in a ground artificial environment according to the relativity principle of motion, and artificially make air flow so as to simulate various complicated flight states in the air and obtain experimental data, and the wind tunnel experiment has the following four advantages although limited: experimental conditions such as the speed, pressure, temperature and the like of the air flow can be controlled more accurately; the experiment is carried out indoors, the influence of the climate condition and the time is small, and the installation, the operation and the use of the model and the testing instrument are convenient; the experimental items and the contents are various, and the accuracy of the experimental result is higher; the experiment is safer, the efficiency is high, and the cost is low; wind tunnel tests are therefore widely used in aerodynamics research, in the development of various aircraft, and in industrial aerodynamics and other fields related to air flow or wind.
In order to ensure that the air flow in the equipment is stable in the use process, the conventional wind tunnel test is only used for debugging the air flow in the horizontal direction, because the conventional wind tunnel test is generally in a fixed shape, a fan at the tail end can generate suction force so as to suck air from the wind guide equipment at the front end of the equipment to generate air flow, particularly, the wind guide structures at the front end of some small-sized equipment are all fixed structures, when the condition between objects and the air flow is tested at different wind speeds, the size of an air inlet cannot be changed due to the fixed wind guide structures, the condition that the wind speeds of a central area and a side area in an equipment pipeline are different easily occurs, the wind speeds of the side edges are also influenced by friction and the like on the inner wall of the equipment pipeline, the condition that the wind speeds are uneven in the same pipeline section is further caused, particularly when the model to be tested is tested for a large model, at the moment, the stable air flow in the central area is insufficient to cover the model, and a certain error is easy to occur when the wind speeds and the central wind speeds of the side are uneven.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide the diversion equipment and the diversion method for the wind tunnel test.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a wind tunnel test is with water conservancy diversion equipment and water conservancy diversion method, including the equipment base, the top one side of equipment base fixedly connected with support frame, the top fixedly connected with test tuber pipe of support frame, one side fixedly connected with a plurality of first water conservancy diversion mechanisms of test tuber pipe;
the outer wall of the test air pipe is fixedly connected with a plurality of second diversion mechanisms at one side close to the first diversion mechanisms, a diversion opening adjusting mechanism is arranged between one side of the top of the equipment base and the plurality of first diversion mechanisms, the flow stabilizer is arranged on both sides of the inner wall of the test air pipe, and an air speed testing mechanism is fixedly connected to one side of the center of the top of the outer wall of the test air pipe;
The device comprises a device base, and is characterized in that a platform mechanism is arranged between the center of the top of the device base and a test air pipe, one end of the inner wall of the test air pipe is fixedly connected with a driving mechanism, the center of the front end of the outer wall of the test air pipe is rotationally connected with a sealing door plate, and a lock catch is arranged on one side of the sealing door plate on the outer wall of the test air pipe.
Further, the first guiding mechanism comprises an arc-shaped shaft seat fixedly connected to one end of the test air pipe, an inner guiding plate is rotationally connected to the arc-shaped shaft seat, a limiting shell is fixedly connected to the outer wall of the inner guiding plate, a sliding shaft seat is slidingly connected to the inner wall of the limiting shell, a driving rod is rotationally connected to the top of the sliding shaft seat, and a plurality of vortex sheets are fixedly connected to one side of the driving rod.
Through the technical scheme, the guide opening adjusting mechanism drives the plurality of driving rods with the vortex tooth plates to move so as to pull the sliding shaft seat to slide in the limiting shell, and then the limiting shell can pull the inner guide plates to rotate on the arc-shaped shaft seat, the rotation of the inner guide plates can realize the angle opening of the integral air inlet, and the air inlet quantity is increased.
Further, the second guiding mechanism comprises a first shaft seat fixedly connected to one end of the outer wall of the test air pipe, a rotating base is rotationally connected to the first shaft seat, a fixing sleeve is fixedly connected to one side of the rotating base, a telescopic rod is slidably connected to the inner wall of the fixing sleeve, a compression spring is fixedly connected between one end of the telescopic rod and the inner wall of the fixing sleeve, a second shaft seat is rotationally connected to the other end of the telescopic rod, and an outer guiding plate is fixedly connected to the bottom of the second shaft seat.
Through the technical scheme, when a plurality of inner side guide plates are opened, the outer side guide plates attached to the inner side guide plates can be extruded, so that the outer side guide plates can rotate at one end of the telescopic rod through the second shaft seat when the outer side guide plates slide on the outer side guide plate outer walls, the outer side guide plates can be attached to the outer walls of the inner side guide plates all the time when the expansion is carried out due to the existence of the compression springs, and the gaps which appear when the inner side guide plates are opened can be plugged through the corresponding outer side guide plates.
Further, the arc shaft seat is of an arc structure, the connecting shaft in the center is of a straight structure, and the inner guide plate and the outer guide plate are of arc structures.
Through the technical scheme, the arc-shaped shaft seat is of an arc-shaped structure and is matched with the appearance of the test air pipe, and the connecting shaft in the center is of a straight structure and is used for realizing rotation of the inner side guide plate.
Further, water conservancy diversion mouth adjustment mechanism includes the motor element of fixed connection at equipment base top, the top fixedly connected with outside protecting crust of motor element, the inside of outside protecting crust rotates respectively and is connected with drive worm and drive gear, drive worm and motor element's output fixed connection, one side of equipment base is provided with solid fixed ring, gu fixed ring's inner wall rotates and is connected with the transmission ring gear, gu one side fixedly connected with vortex tooth of transmission ring gear, be provided with a plurality of rolling steel balls between solid fixed ring inner wall and the transmission ring gear, the side ring plate is installed to one side of gu fixed ring, a plurality of fixed lugs of equal fixedly connected with of outer wall of solid fixed ring and side ring plate, and fix through the bolt between the corresponding fixed lug.
Through above-mentioned technical scheme, start motor assembly drives the drive worm and rotates, and then drive gear with its meshed drive gear, make the transmission ring gear rotate in the fixed ring, the rotation of transmission ring gear and vortex form tooth can drive a plurality of actuating levers that have vortex tooth piece and remove, the actuating lever removes outside under the spacing of fixed ring and side crown plate and removes, and then can stimulate the slip axle bed and slide in spacing shell, and then can stimulate inboard guide plate and rotate on the arc axle bed through spacing shell, the angle that a plurality of inboard guide plates rotated can realize whole air intake is opened, increase intake.
Further, the transmission gear is meshed with the transmission toothed ring and the transmission worm respectively, and a plurality of vortex tooth sheets at one side of the plurality of driving rods are meshed with the vortex tooth.
Through above-mentioned technical scheme, guaranteed to drive the rotation of drive worm and then drive gear through motor assembly and rotate, the rotation of rethread drive gear drives the transmission ring gear and rotates, can drive a plurality of actuating levers that have vortex tooth piece through the rotation of transmission ring gear and vortex tooth and remove.
Further, wind speed testing mechanism includes the first cylinder of fixed connection at the connection containing shell and two fixed connection both ends around equipment base top at test tuber pipe top, two fixedly connected with drive connecting plate between the output of first cylinder, one side fixedly connected with of drive connecting plate is connecting the gliding mounting bracket of containing shell inner wall, the inner wall fixedly connected with polycyclic fixing frame of mounting bracket, install a plurality of hot wire formula wind speed sensor on the polycyclic fixing frame, the bottom fixedly connected with top arc shutoff board of mounting bracket, connect the equal fixedly connected with second cylinder in bottom of containing shell front end face and rear end face, two fixedly connected with bottom arc shutoff board between the output of second cylinder.
Through above-mentioned technical scheme, during the use, confirm the wind speed of required test, start two first cylinders, make its shrink and then drive connecting plate, mounting bracket and polycyclic fixing frame decline, and then make a plurality of hot-wire wind speed sensor distribute inside the test tuber pipe, two second cylinders also can promote bottom arc shutoff board decline simultaneously, for the decline of top arc shutoff board provides the space.
Further, through holes corresponding to the mounting frame and the top arc-shaped plugging plate are respectively formed in the top and the bottom of the test air pipe, and the structures of the two through holes are respectively identical to the top arc-shaped plugging plate and the bottom arc-shaped plugging plate.
Through the technical scheme, after the opening and closing angles of the first flow guiding mechanism and the second flow guiding mechanism are determined, the two first air cylinders and the two second air cylinders respectively drive the top arc-shaped plugging plate and the bottom arc-shaped plugging plate to reset, and the top through hole and the bottom through hole of the test air pipe are respectively plugged, so that the influence on the flow of subsequent air flows is avoided.
Further, the platform mechanism comprises a first hydraulic cylinder fixedly connected to the top of the equipment base, the output end of the first hydraulic cylinder is fixedly connected with a placing platform, and each corner of the bottom of the placing platform is fixedly connected with a limiting round rod.
Through the technical scheme, when the air conditioner is used, the sealing door plate is opened, the model to be tested is placed on the placing platform, the first hydraulic cylinder is started according to the size of the model to be tested to drive the placing platform to lift, and then the model to be tested is located in the center of the test air pipe as much as possible.
Further, the driving mechanism comprises a motor fixing frame fixedly connected to one end of the inner wall of the test air pipe, a driving motor is fixedly connected to the center of the motor fixing frame, and a rotary fan blade is fixedly connected to the output end of the driving motor.
Through the technical scheme, the driving motor is started to drive the rotary fan blades to rotate, so that suction force is generated at the tail end of the test air pipe, and wind power driving of wind tunnel test is realized.
The beneficial effects of the invention are as follows: (1) According to the invention, when the device is used, the wind speed required to be tested is determined through designing the first flow guiding mechanism, the second flow guiding mechanism, the flow guiding opening adjusting mechanism and the wind speed testing mechanism, the wind speed data measured by the plurality of hot wire type wind speed sensors are used for observing the wind speed data of the central area and the peripheral area, if a certain gap exists between the wind speed data, the motor assembly is started to drive the transmission worm to rotate so as to drive the transmission gear meshed with the transmission worm to drive the transmission gear ring to rotate in the fixed ring, the rotation of the transmission gear ring and the vortex-shaped teeth drives the plurality of driving rods with vortex-shaped blades to move, the driving rods move outwards under the limit of the fixed ring and the side ring plates, the sliding shaft seat is pulled to slide in the limit shell, the limit shell can be pulled to rotate on the arc-shaped shaft seat through the limit shell, the rotation of the plurality of inner side guide plates can realize the angular opening of the integral wind inlet, the wind inlet is increased, and simultaneously the plurality of inner guide plates are opened and simultaneously, the outer guide plates attached to the inner guide plates can also move along with the transmission worm, so that the gaps can be continuously observed, the wind speed change of the plurality of the hot wire type wind speed sensors is realized, and the wind speed change of the central area and the air flow testing efficiency can be improved as far as possible; (2) According to the invention, by designing the first flow guiding mechanism, the second flow guiding mechanism, the flow guiding port adjusting mechanism and the air speed testing mechanism, the structure not only can measure the average wind speed, but also can realize that the wind inlet is maximum when the first flow guiding mechanism and the second flow guiding mechanism are opened to what angle, and the wind speed is maximum under the same power of the driving motor, so that the electric energy can be saved, meanwhile, the top arc type plugging plate and the bottom arc type plugging plate are designed to reset, and after the opening and closing angles of the first flow guiding mechanism and the second flow guiding mechanism are determined, the two first air cylinders and the two second air cylinders respectively drive the top arc type plugging plate and the bottom arc type plugging plate to reset, so that the top through hole and the bottom through hole of the test air pipe are respectively plugged, and the influence on the subsequent airflow is avoided.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic cross-sectional perspective view of the present invention;
FIG. 5 is a schematic structural view of the test air duct, the first diversion mechanism, the second diversion mechanism and the diversion opening adjusting mechanism of the present invention;
FIG. 6 is a cross-sectional view of FIG. 5;
FIG. 7 is a schematic view of the structure of the test air duct, the first air guiding mechanism and the second air guiding mechanism according to the present invention;
FIG. 8 is a schematic diagram of the structure of a single first and second diversion mechanism;
FIG. 9 is a schematic view of a portion of a first diversion mechanism according to the present invention;
FIG. 10 is a partial enlarged view at B in FIG. 8;
FIG. 11 is a schematic cross-sectional view of a second flow guiding mechanism according to the present invention;
FIG. 12 is a schematic view of an exploded view of a baffle orifice adjusting mechanism of the present invention;
FIG. 13 is a schematic cross-sectional view of a test air duct and an air speed test mechanism of the present invention;
FIG. 14 is a schematic view of the wind speed testing mechanism of the present invention;
FIG. 15 is a schematic view of an exploded construction of the wind speed testing mechanism of the present invention.
Reference numerals: 1. an equipment base; 2. a support frame; 3. testing an air pipe; 4. a first flow guiding mechanism; 401. an arc shaft seat; 402. an inner baffle; 403. a limit shell; 404. a sliding shaft seat; 405. a driving rod; 406. a vortex tooth plate; 5. a second flow guiding mechanism; 501. a first shaft seat; 502. rotating the base; 503. a fixed sleeve; 504. a telescopic rod; 505. a compression spring; 506. a second axle seat; 507. an outer baffle; 6. a diversion port adjusting mechanism; 601. a motor assembly; 602. an outer protective shell; 603. a drive worm; 604. a transmission gear; 605. a fixing ring; 606. a drive ring gear; 607. vortex-like teeth; 608. rolling the steel balls; 609. a side ring plate; 610. a fixed ear; 7. a current stabilizer; 8. a wind speed testing mechanism; 801. connecting the storage shell; 802. a first cylinder; 803. a driving connecting plate; 804. a mounting frame; 805. a multi-ring fixing frame; 806. a hot wire type wind speed sensor; 807. a top arc-shaped plugging plate; 808. a second cylinder; 809. a bottom arc-shaped plugging plate; 9. a platform mechanism; 901. a first hydraulic cylinder; 902. placing a platform; 903. a limit round rod; 10. a driving mechanism; 1001. a motor fixing frame; 1002. a driving motor; 1003. rotating the fan blades; 11. sealing the door plate; 12. and (5) locking.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-10, a diversion device and a diversion method for wind tunnel test in this embodiment, including a device base 1, a support frame 2 is fixedly connected to one side of the top of the device base 1, a test air pipe 3 is fixedly connected to the top of the support frame 2, a plurality of first diversion mechanisms 4 are fixedly connected to one side of the test air pipe 3, the first diversion mechanisms 4 include an arc-shaped shaft seat 401 fixedly connected to one end of the test air pipe 3, an inner side diversion plate 402 is rotatably connected to the arc-shaped shaft seat 401, an outer wall of the inner side diversion plate 402 is fixedly connected to a limiting shell 403, a sliding shaft seat 404 is slidably connected to an inner wall of the limiting shell 403, a driving rod 405 is rotatably connected to the top of the sliding shaft seat 404, a plurality of vortex sheets 406 are fixedly connected to one side of the driving rod 405, and the diversion opening adjusting mechanism 6 drives the plurality of driving rods 405 with the vortex sheets 406 to move so as to pull the sliding shaft seat 404 to slide in the limiting shell 403, and then the inner side diversion plate 402 can be pulled to rotate on the arc-shaped shaft seat 401 through the limiting shell 403, and the inner side diversion plate 402 can be rotated on the arc-shaped shaft seat 401, the rotation of the inner side diversion plate 402 can realize the angular opening of the whole air inlet, and the air inlet volume is increased.
As shown in fig. 1-11, the outer wall of the test air duct 3 is fixedly connected with a plurality of second air guide mechanisms 5 at one side close to the first air guide mechanism 4, the second air guide mechanisms 5 comprise a first shaft seat 501 fixedly connected with one end of the outer wall of the test air duct 3, a rotating base 502 is rotatably connected on the first shaft seat 501, one side of the rotating base 502 is fixedly connected with a fixed sleeve 503, the inner wall of the fixed sleeve 503 is slidably connected with a telescopic rod 504, a compression spring 505 is fixedly connected between one end of the telescopic rod 504 and the inner wall of the fixed sleeve 503, the other end of the telescopic rod 504 is rotatably connected with a second shaft seat 506, the bottom of the second shaft seat 506 is fixedly connected with an outer air guide plate 507, when the plurality of inner air guide plates 402 are opened, the outer air guide plates 507 attached to the inner side of the test air duct are extruded, the outside guide plate 507 is made to slide on the outer wall of the inside guide plate 402, the outside guide plate 507 rotates at one end of the telescopic rod 504 through the second shaft seat 506, the outside guide plate 507 is always attached to the outer wall of the inside guide plate 402 when expanding due to the existence of the compression spring 505, gaps which appear when a plurality of inside guide plates 402 are opened can be plugged through the corresponding outside guide plates 507, the arc shaft seat 401 is of an arc structure, the connecting shaft of the center is of a straight structure, the inside guide plates 402 and the outside guide plates 507 are of an arc structure, the arc shaft seat 401 is of an arc structure so as to match with the appearance of the test air pipe 3, and the connecting shaft of the center is of a straight structure so that the inner guide plates 402 can rotate.
As shown in fig. 1-12, a diversion opening adjusting mechanism 6 is arranged between one side of the top of the equipment base 1 and a plurality of first diversion mechanisms 4, the diversion opening adjusting mechanism 6 comprises a motor component 601 fixedly connected to the top of the equipment base 1, the top of the motor component 601 is fixedly connected with an outer protective shell 602, the inside of the outer protective shell 602 is respectively and rotatably connected with a driving worm 603 and a driving gear 604, the driving worm 603 is fixedly connected with the output end of the motor component 601, one side of the equipment base 1 is provided with a fixed ring 605, the inner wall of the fixed ring 605 is rotatably connected with a driving toothed ring 606, one side of the driving toothed ring 606 is fixedly connected with vortex-shaped teeth 607, a plurality of rolling steel balls 608 are arranged between the inner wall of the fixed ring 605 and the driving toothed ring 606, one side of the fixed ring 605 is provided with a side ring plate 609, the outer walls of the fixed ring 605 and the side ring plate 609 are fixedly connected with a plurality of fixed lugs 610, and the corresponding fixing lugs 610 are fixed through bolts, the motor component 601 is started to drive the transmission worm 603 to rotate, and then drive the transmission gear 604 meshed with the transmission worm 603 to drive the transmission gear 606 to rotate in the fixing ring 605, the rotation of the transmission gear 606 and the vortex teeth 607 can drive the plurality of driving rods 405 with the vortex teeth 406 to move, the driving rods 405 move outwards under the limit of the fixing ring 605 and the side ring plate 609, and then the sliding shaft seat 404 is pulled to slide in the limiting shell 403, and then the inner side guide plate 402 can be pulled to rotate on the arc-shaped shaft seat 401 through the limiting shell 403, the rotation of the plurality of inner side guide plates 402 can realize the angle opening of the integral air inlet to increase the air inlet quantity, the transmission gear 604 is meshed with the transmission gear 606 and the transmission worm 603 respectively, and the vortex teeth 406 on one side of the plurality of driving rods 405 are meshed with the vortex teeth 607, the structure ensures that the motor assembly 601 drives the transmission worm 603 to rotate so as to drive the transmission gear 604 to rotate, the transmission gear 604 is driven to rotate by the rotation of the transmission gear 604, the plurality of driving rods 405 with the vortex sheets 406 are driven to move by the rotation of the transmission gear 606 and the vortex teeth 607, the structure can realize that the air inlet quantity is maximum when the first diversion mechanism 4 and the second diversion mechanism 5 are opened at a proper angle while testing the average air speed, and further can realize saving of electric energy.
As shown in fig. 1-15, the current stabilizer 7 is installed on both sides of the inner wall of the test air pipe 3, the wind speed testing mechanism 8 is fixedly connected to one side of the center of the top of the outer wall of the test air pipe 3, the wind speed testing mechanism 8 comprises a connecting storage shell 801 fixedly connected to the top of the test air pipe 3 and two first air cylinders 802 fixedly connected to the front end and the rear end of the top of the equipment base 1, a driving connection plate 803 is fixedly connected between the output ends of the two first air cylinders 802, one side of the driving connection plate 803 is fixedly connected with a mounting frame 804 sliding on the inner wall of the connecting storage shell 801, the inner wall of the mounting frame 804 is fixedly connected with a multi-ring fixing frame 805, a plurality of hot wire wind speed sensors 806 are installed on the multi-ring fixing frame 805, the bottom of the mounting frame 804 is fixedly connected with a top arc-shaped sealing plate 807, the bottoms of the connecting storage shell 801 and the rear end face are fixedly connected with a second air cylinder 808, the bottom arc-shaped plugging plates 809 are fixedly connected between the output ends of the two second air cylinders 808, when the air speed to be tested is determined, the two first air cylinders 802 are started to shrink so as to drive the driving connecting plate 803, the mounting frame 804 and the multi-ring fixing frame 805 to descend, a plurality of hot wire type air speed sensors 806 are distributed in the test air pipe 3, meanwhile, the two second air cylinders 808 also push the bottom arc-shaped plugging plates 809 to descend so as to provide space for the descending of the top arc-shaped plugging plates 807, through holes corresponding to the mounting frame 804 and the top arc-shaped plugging plates 807 are respectively formed at the top and the bottom of the test air pipe 3, the structures of the two through holes are the same as the top arc-shaped plugging plates 807 and the bottom arc-shaped plugging plates 809 respectively, after the opening and closing angles of the first flow guiding mechanism 4 and the second flow guiding mechanism 5 are determined, the two first air cylinders 802 and the two second air cylinders 808 respectively drive the top arc-shaped plugging plate 807 and the bottom arc-shaped plugging plate 809 to reset, and respectively plug the top through hole and the bottom through hole of the test air pipe 3, so that the influence on the subsequent airflow is avoided.
As shown in fig. 1 and 2, a platform mechanism 9 is arranged between the center of the top of the equipment base 1 and the test air duct 3, the platform mechanism 9 comprises a first hydraulic cylinder 901 fixedly connected to the top of the equipment base 1, the output end of the first hydraulic cylinder 901 is fixedly connected with a placement platform 902, each corner of the bottom of the placement platform 902 is fixedly connected with a limit round rod 903, when in use, a sealing door plate 11 is opened, a model to be tested is placed on the placement platform 902, the first hydraulic cylinder 901 is started according to the size of the model to be tested to drive the placement platform 902 to lift, the model to be tested is further positioned in the center of the test air duct 3 as much as possible, one end of the inner wall of the test air duct 3 is fixedly connected with a driving mechanism 10, the driving mechanism 10 comprises a motor fixing frame 1001 fixedly connected to one end of the inner wall of the test air duct 3, the center of the motor fixing frame 1001 is fixedly connected with a driving motor 1002, the output end of the driving motor 1002 is fixedly connected with a rotary fan blade 1003, the driving motor 1002 is started to drive the rotary fan blade 1003 to rotate, suction force is further generated at the tail end of the test air duct 3, wind power driving of the wind tunnel is realized, the front end center of the outer wall of the test air duct 3 is rotationally connected with the sealing door plate 11, and the outer wall of the test air duct 3 is provided with one side of the sealing door plate 12 at one side of the sealing door plate 11.
The diversion method of the diversion equipment for the wind tunnel test comprises the following specific steps:
Step one: when the device is used, the wind speed to be tested is determined, the two first cylinders 802 are started to be contracted so as to drive the driving connecting plate 803, the mounting frame 804 and the multi-ring fixing frame 805 to descend, so that the plurality of hot wire type wind speed sensors 806 are distributed in the test wind pipe 3, and meanwhile, the two second cylinders 808 also push the bottom arc type plugging plate 809 to descend so as to provide space for the descent of the top arc type plugging plate 807;
Step two: starting a driving motor 1002 to drive a rotary fan blade 1003 to rotate, generating suction force at the tail end of the test air pipe 3, and observing wind speed data of a central area and surrounding areas through wind speed data measured by a plurality of hot wire wind speed sensors 806;
Step three: if the wind speeds in the central area and the peripheral area have a certain gap, the motor component 601 drives the transmission worm 603 to rotate, and then drives the transmission gear 604 meshed with the transmission worm 603 to drive the transmission gear 606 to rotate in the fixed ring 605, the rotation of the transmission gear 606 and the vortex-shaped teeth 607 can drive the plurality of driving rods 405 with vortex-shaped sheets 406 to move, the driving rods 405 move outwards under the limit of the fixed ring 605 and the side ring plates 609, and then the sliding shaft seat 404 is pulled to slide in the limit shell 403, and then the inner side guide plate 402 can be pulled to rotate on the arc-shaped shaft seat 401 through the limit shell 403, the rotation of the plurality of inner side guide plates 402 can realize the angular opening of the integral air inlet, the air inlet quantity is increased, and meanwhile, the outer side guide plates 507 attached to the transmission worm gears are extruded when the plurality of inner side guide plates 402 are opened, and simultaneously the outer side guide plates 507 are enabled to rotate at one end of the telescopic rod 504 through the second shaft seat 506, and the outer side guide plates 507 are always attached to the outer side guide plates 402 through the outer side of the telescopic rod 504 due to the existence of the compression springs 505, and then the inner side guide plates 402 can be enabled to always attached to the outer side guide plates 402 and the outer side guide plates 402 to the corresponding air inlet holes to a plurality of the heat-shaped guide plates which can be continuously opened when the plurality of air inlet air speed sensor holes are opened, and the corresponding heat-shaped heat-sealing air guide plates can be continuously opened and opened;
step four: after the opening and closing angles of the first diversion mechanism 4 and the second diversion mechanism 5 are determined, the two first air cylinders 802 and the two second air cylinders 808 respectively drive the top arc-shaped plugging plate 807 and the bottom arc-shaped plugging plate 809 to reset, respectively plug the top through hole and the bottom through hole of the test air pipe 3, avoid affecting the subsequent airflow, and then stop the driving motor 1002;
Step five: opening the sealing door plate 11, placing a model to be tested on the placing platform 902, restarting the driving motor 1002 after closing the sealing door plate 11, adding smoke equipment into an air inlet, stabilizing air flow through the flow stabilizer 7 after the air flow enters the test air pipe 3 through the first flow guide mechanism 4 and the second flow guide mechanism 5, blowing through the model to be tested, and observing the movement shape of air flow smoke to start testing work.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.
Claims (8)
1. The utility model provides a wind tunnel test is with water conservancy diversion equipment, includes equipment base (1), its characterized in that: the device comprises a device base (1), wherein a supporting frame (2) is fixedly connected to one side of the top of the device base (1), a test air pipe (3) is fixedly connected to the top of the supporting frame (2), and a plurality of first diversion mechanisms (4) are fixedly connected to one side of the test air pipe (3);
The utility model discloses a test tuber pipe (3) outer wall is in one side fixedly connected with a plurality of second guiding mechanism (5) near first guiding mechanism (4), first guiding mechanism (4) are including arc axle bed (401) of fixed connection in test tuber pipe (3) one end, rotate on arc axle bed (401) and be connected with inboard guide plate (402), the outer wall fixedly connected with spacing shell (403) of inboard guide plate (402), the inner wall sliding connection of spacing shell (403) has slide axle bed (404), the top rotation of slide axle bed (404) is connected with actuating lever (405), one side fixedly connected with a plurality of vortex sheet (406) of actuating lever (405), second guiding mechanism (5) are including first axle bed (501) of fixed connection in test tuber pipe (3) outer wall one end, be connected with rotation base (502) on first axle bed (501) rotationally, one side fixedly connected with fixed sleeve (503) of rotation base (502), the inner wall sliding connection telescopic link (504) of fixed sleeve (503), telescopic link (504) one end, telescopic link (506) and the compression base (506) of the second axle bed (506) fixedly connected with one end of telescopic link (506), a flow guide opening adjusting mechanism (6) is arranged between one side of the top of the equipment base (1) and the plurality of first flow guide mechanisms (4), current stabilizers (7) are arranged on two sides of the inner wall of the test air pipe (3), and an air speed testing mechanism (8) is fixedly connected to one side of the center of the top of the outer wall of the test air pipe (3);
The device is characterized in that a platform mechanism (9) is arranged between the center of the top of the device base (1) and the test air pipe (3), one end of the inner wall of the test air pipe (3) is fixedly connected with a driving mechanism (10), the center of the front end of the outer wall of the test air pipe (3) is rotationally connected with a sealing door plate (11), and one side of the sealing door plate (11) of the outer wall of the test air pipe (3) is provided with a lock catch (12).
2. The wind tunnel test flow guiding device according to claim 1, wherein the arc shaft seat (401) has an arc structure, the central connecting shaft has a straight structure, and the inner flow guiding plate (402) and the outer flow guiding plate (507) have arc structures.
3. The diversion device for wind tunnel test according to claim 2, wherein the diversion port adjusting mechanism (6) comprises a motor component (601) fixedly connected to the top of the device base (1), the top of the motor component (601) is fixedly connected with an outer protection shell (602), a driving worm (603) and a driving gear (604) are respectively and rotatably connected to the inside of the outer protection shell (602), the driving worm (603) is fixedly connected with the output end of the motor component (601), a fixed ring (605) is arranged on one side of the device base (1), a driving toothed ring (606) is rotatably connected to the inner wall of the fixed ring (605), vortex teeth (607) are fixedly connected to one side of the driving toothed ring (606), a plurality of rolling steel balls (608) are arranged between the inner wall of the fixed ring (605) and the driving toothed ring (606), a side ring plate (609) is mounted on one side of the fixed ring (605), a plurality of fixed lugs (610) are fixedly connected to the outer walls of the fixed ring (605) and the corresponding fixed lugs (610) are fixed through bolts.
4. A wind tunnel test flow guiding device according to claim 3, characterized in that the transmission gear (604) is respectively meshed with the transmission toothed ring (606) and the transmission worm (603), and the plurality of worm teeth pieces (406) on one side of the plurality of driving rods (405) are respectively meshed with the worm teeth (607).
5. The diversion device for wind tunnel test according to claim 4, wherein the wind speed testing mechanism (8) comprises a connection storage shell (801) fixedly connected to the top of the test wind pipe (3) and two first cylinders (802) fixedly connected to the front end and the rear end of the top of the device base (1), two driving connection plates (803) are fixedly connected between output ends of the first cylinders (802), one side of each driving connection plate (803) is fixedly connected with a mounting frame (804) sliding on the inner wall of the connection storage shell (801), the inner wall of each mounting frame (804) is fixedly connected with a multi-ring fixing frame (805), a plurality of hot wire wind speed sensors (806) are mounted on the multi-ring fixing frame (805), top arc-shaped sealing plates (807) are fixedly connected to the bottom of each mounting frame (804), second cylinders (808) are fixedly connected to the bottoms of the front end face and the rear end face of each connection storage shell (801), bottom arc-shaped sealing plates (809) are fixedly connected between the output ends of each second cylinder (808), and the top and the bottom of the test wind pipe (3) are respectively provided with a plurality of top arc-shaped sealing plates (807) and two corresponding arc-shaped sealing plates (807) and two arc-shaped sealing plates respectively.
6. The diversion device for wind tunnel test according to claim 5, wherein the platform mechanism (9) comprises a first hydraulic cylinder (901) fixedly connected to the top of the device base (1), the output end of the first hydraulic cylinder (901) is fixedly connected with a placement platform (902), and each corner of the bottom of the placement platform (902) is fixedly connected with a limiting round rod (903).
7. The diversion device for wind tunnel test according to claim 6, wherein the driving mechanism (10) comprises a motor fixing frame (1001) fixedly connected to one end of the inner wall of the test wind pipe (3), a driving motor (1002) is fixedly connected to the center of the motor fixing frame (1001), and a rotary fan blade (1003) is fixedly connected to the output end of the driving motor (1002).
8. The method for guiding the flow guiding device for the wind tunnel test according to claim 7, comprising the following specific steps:
Step one: the wind speed to be tested is determined, two first cylinders (802) are started to shrink so as to drive a driving connecting plate (803), a mounting frame (804) and a multi-ring fixing frame (805) to descend, a plurality of hot wire type wind speed sensors (806) are distributed in a test wind pipe (3), and meanwhile, two second cylinders (808) also push a bottom arc type plugging plate (809) to descend so as to provide space for the descending of the top arc type plugging plate (807);
Step two: starting a driving motor (1002) to drive a rotary fan blade (1003) to rotate, generating suction force at the tail end of a test air pipe (3), and observing wind speed data of a central area and surrounding areas through wind speed data measured by a plurality of hot wire wind speed sensors (806);
step three: if the wind speeds in the central area and the peripheral area are inconsistent, the motor component (601) is started to drive the transmission worm (603) to rotate, and then the transmission gear (604) meshed with the transmission worm is driven to rotate in the fixed ring (605), the rotation of the transmission toothed ring (606) and the vortex-shaped teeth (607) can drive the driving rods (405) with the vortex-shaped sheets (406) to move, the driving rods (405) move outwards under the limit of the fixed ring (605) and the side ring plates (609), the sliding shaft seat (404) is pulled to slide in the limit shell (403), the inner guide plate (402) is pulled to rotate on the arc-shaped shaft seat (401) through the limit shell (403), the angle of the integral air inlet is opened by the rotation of the inner guide plates (402), the air inlet is increased, the outer guide plates (507) attached to the inner guide plates (402) are extruded at the same time when the inner guide plates (402) are opened, the outer guide plates (507) are slid outwards, the outer guide plates (507) are attached to the outer side guide plates (402) through the expansion plates (506) at one end of the expansion springs (505) which are always attached to one end of the outer guide plates (506), the gaps which appear when the inner side guide plates (402) are opened are blocked by the corresponding outer side guide plates (507), so that the wind speed change of the hot wire type wind speed sensors (806) is continuously observed;
Step four: after the opening and closing angles of the first flow guiding mechanism (4) and the second flow guiding mechanism (5) are determined, the two first air cylinders (802) and the two second air cylinders (808) respectively drive the top arc-shaped plugging plate (807) and the bottom arc-shaped plugging plate (809) to reset, the top through hole and the bottom through hole of the test air pipe (3) are plugged respectively, the influence on the subsequent airflow is avoided, and then the driving motor (1002) stops working;
Step five: opening a sealing door plate (11) and then placing a model to be tested on a placing platform (902), restarting a driving motor (1002) after closing the sealing door plate (11), adding smoke equipment into an air inlet, enabling air flow to enter a test air pipe (3) through a first flow guiding mechanism (4) and a second flow guiding mechanism (5), stabilizing the flow through a flow stabilizer (7), blowing through the model to be tested, and observing the movement shape of air flow smoke to start testing work.
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