CN112858586A - Rapid testing device for resistance reduction performance of large Reynolds number and detection method thereof - Google Patents
Rapid testing device for resistance reduction performance of large Reynolds number and detection method thereof Download PDFInfo
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Abstract
The invention provides a rapid testing device for resistance reducing performance of large Reynolds number and a detection method thereof, the rapid testing device for resistance reducing performance of large Reynolds number comprises a liquid storage device and a bearing plate, the upper end surface of the bearing plate is fixedly connected with a device frame, the middle part of the upper end surface of the device frame is fixedly connected with a fixed platform, the upper end surface of the fixed platform is fixedly connected with a driving motor, the lower end surface of the driving motor is rotatably connected with a transmission device, a bearing layer penetrates through the middle part of the device frame, two sides of the side end surface of the device frame are fixedly connected with a lifting device, the inner side of the lifting device is fixedly connected with a detection cylinder body, the detection cylinder body comprises an annular bulge, a threaded hole, a cylinder body, an electromagnetic valve, a detection sensor and a connecting ring, the annular bulge is fixedly connected to the upper end face of the cylinder body, and the device disclosed by the invention realizes quick and accurate measurement of the resistance reduction performance of the coating under the condition of a large Reynolds number.
Description
Technical Field
The invention relates to the technical field of coating performance testing equipment, in particular to a high Reynolds number resistance reduction performance rapid testing device and a detection method thereof.
Background
Coating is a solid continuous film obtained by one-time coating, and is a thin layer of plastic applied to a substrate of metal, fabric, plastic, etc. for the purpose of protection, insulation, decoration, etc. The coating material can be in a gas state, a liquid state or a solid state, and the type and the state of the coating material are generally determined according to the substrate needing to be sprayed.
The coating not only needs to have decoration and functionality, but also needs to have certain physical and chemical comprehensive performance. Most of the physical and chemical property detection of the coating is finished on the coating. The physical and chemical performance detection data of the coating can be used for predicting the performance of the coating, and can also effectively guide the adjustment of the coating formula, so that the coating is more suitable for the performance requirements of the construction process on the coating. The detection of the physical and chemical properties of the coating is an important link for the development and production of coating products.
The Reynolds number is a similar criterion number for characterizing viscous influence in fluid mechanics, and the resistance reduction performance of the coating in a large Reynolds number is a main research object in water conservancy industries such as ships.
But the quick testing arrangement of big reynolds number drag reduction performance structure is comparatively complicated, and receives external environment influence test accuracy lower in the test procedure easily, because the place is uneven and other factors all can influence the test result during the test, the possibility that the different local test results appear even, and the testing arrangement operation is comparatively loaded down with trivial details simultaneously has great improvement space.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a device for quickly testing the resistance reduction performance of a large Reynolds number and a detection method thereof, so as to solve the problems in the background art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a high Reynolds number resistance reduction performance rapid testing device comprises a liquid storage device and a bearing plate, wherein the upper end face of the bearing plate is fixedly connected with a device frame, the middle part of the upper end face of the device frame is fixedly connected with a fixing platform, the upper end face of the fixing platform is fixedly connected with a driving motor, the lower end face of the driving motor is rotatably connected with a transmission device, a bearing layer penetrates through the middle part of the device frame, two sides of the side end face of the device frame are fixedly connected with a lifting device, the inner side of the lifting device is fixedly connected with a detection barrel, the detection barrel comprises annular bulges, threaded holes, a barrel body, an electromagnetic valve, detection sensors and a connecting ring, the annular bulges are fixedly connected with the upper end face of the barrel body, the connecting ring is fixedly connected with the edge of the upper end face of the barrel body, the threaded holes are uniformly arranged in the, the electromagnetic valve is fixedly installed in the middle of the bottom surface of the barrel body, the lifting device is communicated with an oil pressure pipe, an oil pressure pump is fixedly connected to the lower end face of the bearing plate, the oil pressure pipe penetrates through the bearing plate and is communicated with the oil pressure pump, adjustable supporting legs are fixedly installed at four corners of the lower end face of the bearing plate, a control device is fixedly connected to the upper end face of the liquid storage device, a water delivery pipe is communicated with one side of the side end face of the liquid storage device, and the water delivery pipe penetrates through the bearing plate and is communicated with.
Preferably, the adjustable supporting legs include bracing piece, spirit level, external screw thread, regulation pole, regulating part and rubber collet, the external screw thread is seted up on the side end face upper portion of adjusting the pole, the bracing piece rotates the up end of connecting at the regulation pole, the spirit level is seted up at the bracing piece side end face, regulating part fixed connection is at the lower terminal surface of adjusting the pole, rubber collet fixed connection is at the lower terminal surface of regulating part.
Preferably, the inside internal thread that is equipped with external screw thread looks adaptation of bracing piece, the surface of regulation portion inlays and is equipped with anti-skidding line.
Preferably, elevating gear includes actuating cylinder, sliding guide, fixed plate, connecting plate, fly leaf, movable rod, guide rail and actuating lever, actuating cylinder fixed connection is at sliding guide's up end, fixed plate fixed connection is at sliding guide's middle part, the guide rail is seted up in sliding guide inner wall both sides, actuating lever fixed connection is at actuating cylinder's lower terminal surface, just actuating lever one end links to each other with the fixed plate middle part is fixed, movable rod sliding connection is in the inside of actuating lever, the movable rod deviates from the one end fixedly connected with fly leaf of actuating lever, fly leaf sliding connection is in the guide rail, connecting plate fixed connection is in one side of fly leaf.
Preferably, one end of the connecting plate, which is far away from the movable plate, is fixedly connected with the bottom of the cylinder body main body.
Preferably, the transmission device comprises a transmission rod, a coupler, a torsion detector, a connecting rod, a static level gauge, a detection piece, a strengthening piece and a sealing cover plate, the transmission rod is connected with the driving motor in a driving way, the coupler is fixedly connected with the lower end surface of the transmission rod, the torsion detector is fixedly arranged on the lower end surface of the coupler, the connecting rod is fixedly connected on the lower end surface of the torsion detector, the detection piece is fixedly connected with the lower end face of the connecting rod, the sealing cover plate is rotatably connected with the end face of the side of the connecting rod, the static force level gauge is fixedly arranged in the middle of the upper end face of the sealing cover plate, the reinforcing piece is fixedly connected to the upper end face of the sealing cover plate, the lower end face of the sealing cover plate is provided with a sealing groove matched with the annular bulge, and a sealing rubber strip is filled in the sealing groove, and a fixing hole matched with the threaded hole is formed in the sealing cover plate.
Preferably, the hydrostatic level is rotatably connected with the connecting rod through a rotating shaft.
Preferably, the upper surface of the reinforcing member is fixedly connected with the receiving layer.
Preferably, the control device is electrically connected with the driving motor, the liquid storage device, the oil pressure pump, the electromagnetic valve, the detection sensor and the torsion detector.
A detection principle of a device for rapidly testing the resistance reduction performance of a large Reynolds number is as follows: observing the level meter, adjusting the clamping length of the adjusting rod and the supporting rod by rotating the adjusting part, further adjusting the height of the adjustable supporting foot, by adjusting the height of the adjustable supporting feet, the bearing plate is in the horizontal state, and the sealing cover plate is confirmed to be horizontal through the static level gauge, further ensuring that the detection piece is in a vertical state, spraying the coating to be detected on the surface of the detection piece and drying, controlling the driving rod to drive the movable rod to lift through the driving oil cylinder, the cylinder body and the sealing cover plate are driven to be closed to seal the interior of the cylinder body, the interior of the cylinder body is filled with test liquid through the liquid storage device and the electromagnetic valve, the driving motor is driven to drive the transmission rod to drive the detection piece to rotate under the action of the coupler and the connecting rod, the resistance reducing performance of the coating to be detected under the condition of large Reynolds number can be intuitively achieved by observing the detection data of the torsion detector and the detection sensor.
(III) advantageous effects
The invention provides a rapid testing device for resistance reduction performance of a large Reynolds number and a detection method thereof, and the rapid testing device has the following beneficial effects: the detection cylinder is communicated with the liquid storage device through the water delivery pipe, the interior of the cylinder main body is filled with the test liquid, the resistance reduction performance of different coatings on the surface can be visually observed under the condition of high Reynolds number by rotating the detection piece through measuring parameters such as flow velocity and flow rate of the liquid in the detection piece, meanwhile, the adjustable supporting leg is arranged for ensuring the detection accuracy, the adjustable supporting leg can adjust the height, the leveling instrument is also arranged for effectively ensuring that the base of the device is always horizontal, the static leveling instrument is arranged on the upper part of the sealing cover plate, so that the detection piece and the liquid level in the cylinder main body are always in a vertical state to ensure the accuracy of the detection result, the driving motor is driven through the transmission device, the rotation parameter can be measured through the arrangement of the coupler and the stability of the effective packaging connection of the torsion detector, and the visual, the cylinder body is driven to ascend and descend through the transmission device, the sealing cover plate is further arranged, a sealing groove and a fixing hole are formed in the sealing cover plate and used for being in joint sealing with the cylinder body, external environment interference can be effectively reduced when the cylinder body is in a sealed state in an experiment, multiple groups of detection sensors are embedded in the cylinder body, parameters of test liquid can be effectively and visually acquired, and therefore various performances of a surface coating of a detection piece can be displayed, and the device can be controlled through the control device in a unified mode, and is simple and convenient to operate.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus body according to the present invention;
FIG. 2 is a schematic view of an adjustable supporting foot according to the present invention;
FIG. 3 is a schematic cross-sectional view of a detection cylinder according to the present invention;
FIG. 4 is a schematic view of the lifting device of the present invention;
FIG. 5 is a schematic view of the transmission of the present invention.
In the figure: the device comprises a device frame 1, a driving motor 2, a fixed platform 3, a bearing layer 4, a control device 5, a liquid storage device 6, a water delivery pipe 7, a bearing plate 8, a hydraulic pump 10, adjustable supporting legs 11, a detection cylinder 12, a lifting device 13, an oil pressure pipe 14, a transmission device 15, a supporting rod 16, a level gauge 17, an external thread 18, an adjusting rod 19, an adjusting part 20, a rubber bottom support 21, an annular protrusion 22, a threaded hole 23, a cylinder body 24, an electromagnetic valve 25, a detection sensor 26, a connecting ring 27, a driving oil cylinder 28, a sliding guide rail 29, a fixed plate 30 connecting plate 31, a movable plate 32, a movable rod 33, a guide rail 34, a driving rod 35, a transmission rod 36, a coupler 37, a torsion detector 38, a connecting rod 39, a static level gauge 40, a detection part.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
The embodiment of the invention provides a rapid testing device for resistance reducing performance of a large Reynolds number, which comprises a liquid storage device 6 and a bearing plate 8, wherein the upper end surface of the bearing plate 8 is fixedly connected with a device frame 1, the middle part of the upper end surface of the device frame 1 is fixedly connected with a fixed platform 3, the upper end surface of the fixed platform 3 is fixedly connected with a driving motor 2, the lower end surface of the driving motor 2 is rotatably connected with a transmission device 14, a bearing layer 4 penetrates through the middle part of the device frame 1, two sides of the side end surface of the device frame 1 are fixedly connected with lifting devices 12, the inner side of the lifting devices 12 is fixedly connected with a detection cylinder 11, the detection cylinder 11 comprises an annular bulge 21, a threaded hole 22, a cylinder main body 23, an electromagnetic valve 24, a detection sensor 25 and a connecting ring 26, the annular bulge 21 is fixedly connected to the upper end surface of the cylinder main body, the detection sensor 25 is embedded in the inner wall of the cylinder body 23, the electromagnetic valve 24 is fixedly installed in the middle of the bottom surface of the cylinder body 23, the lifting device 12 is communicated with the oil pressure pipe 13, the lower end surface of the bearing plate 8 is fixedly connected with the oil pressure pump 9, the oil pressure pipe 13 penetrates through the bearing plate 8 and is communicated with the oil pressure pump 9, the four corners of the lower end surface of the bearing plate 8 are fixedly provided with adjustable supporting legs 10, the upper end surface of the liquid storage device 6 is fixedly connected with the control device 5, one side of the side end surface of the liquid storage device 6 is communicated with the water delivery pipe 7, and the.
The adjustable supporting foot 10 comprises a supporting rod 15, a level gauge 16, an external thread 17, an adjusting rod 18, an adjusting part 19 and a rubber bottom support 20, wherein the external thread 17 is arranged on the upper part of the side end face of the adjusting rod 18, the supporting rod 15 is rotatably connected to the upper end face of the adjusting rod 18, the level gauge 16 is arranged on the side end face of the supporting rod 15, the adjusting part 19 is fixedly connected to the lower end face of the adjusting rod 18, the rubber bottom support 20 is fixedly connected to the lower end face of the adjusting part 19, an internal thread matched with the external thread 17 is arranged inside the supporting rod 15, anti-skid threads are embedded on the surface of the adjusting part 19, the lifting device 12 comprises a driving oil cylinder 27, a sliding guide rail 28, a fixing plate 29, a connecting plate 30, a movable plate 31, a movable rod 32, a guide rail 33 and a driving rod 34, the driving oil cylinder 27, the driving rod 34 is fixedly connected to the lower end face of the driving cylinder 27, one end of the driving rod 34 is fixedly connected to the middle of the fixed plate 29, the movable rod 32 is slidably connected to the inside of the driving rod 34, one end of the movable rod 32, which is away from the driving rod 34, is fixedly connected to the movable plate 31, the movable plate 31 is slidably connected to the guide rail 33, the connecting plate 30 is fixedly connected to one side of the movable plate 31, one end of the connecting plate 30, which is away from the movable plate 31, is fixedly connected to the bottom of the cylinder main body 23, the transmission device 14 comprises a transmission rod 35, a coupler 36, a torsion detector 37, a connecting rod 38, a static level 39, a detector 40, a reinforcement 41 and a sealing cover plate 42, the transmission rod 35 is in driving connection with the driving motor 2, the coupler 36 is fixedly connected to the, the detection piece 40 is fixedly connected to the lower end face of the connecting rod 38, the sealing cover plate 42 is rotatably connected to the side end face of the connecting rod 38, the static level gauge 39 is fixedly installed in the middle of the upper end face of the sealing cover plate 42, the reinforcement piece 41 is fixedly connected to the upper end face of the sealing cover plate 42, a sealing groove matched with the annular protrusion 21 is formed in the lower end face of the sealing cover plate 42, a sealing rubber strip is filled in the sealing groove, a fixing hole matched with the threaded hole 22 is formed in the sealing cover plate 42, the static level gauge 39 is rotatably connected with the connecting rod 38 through a rotating shaft, the upper surface of the reinforcement piece 41 is fixedly connected with the bearing layer 4, the control device 5 is connected with the driving motor 2, the liquid storage device 6, the oil hydraulic pump 9.
A detection principle of a device for rapidly testing the resistance reduction performance of a large Reynolds number is as follows: the level meter 16 is observed, the clamping length of the adjusting rod 18 and the supporting rod 15 is adjusted through rotating the adjusting part 19, and then the height of the adjustable supporting foot 10 is adjusted, the bearing plate 8 is horizontal by adjusting the height of the adjustable supporting foot 10, meanwhile, the sealing cover plate 42 is confirmed to be horizontal by the static level gauge 39, further ensuring that the detection piece 40 is in a vertical state, after the coating to be detected is sprayed on the surface of the detection piece 40 and dried, the driving cylinder 27 controls the driving rod 34 to drive the movable rod 32 to lift, thereby driving the cylinder body 23 and the sealing cover plate 42 to close to seal the inside of the cylinder body 23, the liquid storage device 6 and the electromagnetic valve 24 are filled with the test liquid in the cylinder body 23, the driving motor 2 is driven to drive the transmission rod 35 to drive the detection piece 40 to rotate under the action of the coupler 36 and the connecting rod 38, the resistance reducing performance of the coating to be detected under the condition of large Reynolds number can be intuitively achieved by observing the detection data of the torsion detector 37 and the detection sensor 25.
In conclusion, by arranging the detection cylinder 11, the detection cylinder 11 is communicated with the liquid storage device 6 through the water delivery pipe 7, the interior of the cylinder main body 23 is filled with the test liquid, the resistance reducing performance of different coatings on the surface under the condition of high Reynolds number can be visually observed by measuring parameters such as flow velocity and flow rate of the internal liquid by rotating the detection piece 40, meanwhile, the adjustable supporting leg 10 is arranged for ensuring the detection accuracy, the adjustable supporting leg 10 can adjust the height, the level gauge 16 is also arranged for effectively ensuring that the device base is always horizontal, the static level gauge 39 is arranged on the upper part of the sealing cover plate 42, so that the detection piece 40 and the liquid level in the interior of the cylinder main body 23 are always in a vertical state for ensuring the accuracy of the detection result, the driving motor 2 is driven by the transmission device 14, and the rotation parameters can be measured through the stability of the effective packaging connection of the coupler 36, the experiment driving parameters can be controlled visually, the barrel body 23 is driven to ascend and descend through the transmission device 14, the sealing cover plate 42 is further arranged, a sealing groove and a fixing hole are formed in the sealing cover plate 42 and used for being connected and sealed with the barrel body 23, the barrel body 23 can be in a sealed state in the experiment to effectively reduce external environment interference, various parameters of test liquid can be effectively obtained visually through embedding multiple groups of detection sensors 25 in the barrel body 23, various performances of a surface coating of the detection piece 40 are displayed, and the device can be controlled simply and conveniently through the control device 5 in a unified mode.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a quick testing arrangement of big reynolds number drag reduction performance, includes stock solution device (6) and loading board (8), its characterized in that: the device comprises a bearing plate (8), a device frame (1) is fixedly connected to the upper end face of the bearing plate (8), a fixing platform (3) is fixedly connected to the middle of the upper end face of the device frame (1), a driving motor (2) is fixedly connected to the upper end face of the fixing platform (3), a transmission device (14) is rotatably connected to the lower end face of the driving motor (2), a bearing layer (4) penetrates through the middle of the device frame (1), lifting devices (12) are fixedly connected to two sides of the side end face of the device frame (1), a detection barrel body (11) is fixedly connected to the inner side of each lifting device (12), each detection barrel body (11) comprises an annular bulge (21), a threaded hole (22), a barrel body (23), an electromagnetic valve (24), a detection sensor (25) and a connecting ring (26), and the annular bulge (21) is fixedly connected to the, the connecting ring (26) is fixedly connected with the edge of the upper end surface of the cylinder body main body (23), the threaded holes (22) are uniformly arranged in the connecting ring (26), the detection sensor (25) is embedded in the inner wall of the cylinder body main body (23), the electromagnetic valve (24) is fixedly arranged in the middle of the bottom surface of the cylinder body main body (23), the lifting device (12) is communicated with an oil pressure pipe (13), the lower end surface of the bearing plate (8) is fixedly connected with an oil pressure pump (9), and the oil pressure pipe (13) penetrates through the bearing plate (8) and is communicated with the oil pressure pump (9), four corners of the lower end surface of the bearing plate (8) are fixedly provided with adjustable supporting feet (10), the upper end surface of the liquid storage device (6) is fixedly connected with a control device (5), one side of the side end surface of the liquid storage device (6) is communicated with a water delivery pipe (7), and the water delivery pipe (7) penetrates through the bearing plate (8) and is communicated with the electromagnetic valve (24).
2. The device for rapidly testing the resistance-reducing performance of the large Reynolds number according to claim 1, wherein: adjustable supporting legs (10) are including bracing piece (15), spirit level (16), external screw thread (17), regulation pole (18), regulation portion (19) and rubber collet (20), set up on the side end face upper portion of adjusting pole (18) in external screw thread (17), bracing piece (15) rotate to be connected at the up end of adjusting pole (18), the end face is seted up at bracing piece (15) side in spirit level (16), regulation portion (19) fixed connection is at the lower terminal surface of adjusting pole (18), rubber collet (20) fixed connection is at the lower terminal surface of regulation portion (19).
3. The device for rapidly testing the resistance-reducing performance of the large Reynolds number according to claim 2, wherein: the internal thread that is equipped with external screw thread (17) looks adaptation in bracing piece (15) inside, regulation portion (19) surface inlays and is equipped with anti-skidding line.
4. The device for rapidly testing the resistance-reducing performance of the large Reynolds number according to claim 1, wherein: elevating gear (12) is including drive cylinder (27), sliding guide (28), fixed plate (29), connecting plate (30), fly leaf (31), movable rod (32), guide rail (33) and actuating lever (34), drive cylinder (27) fixed connection is at the up end of sliding guide (28), fixed plate (29) fixed connection is at the middle part of sliding guide (28), set up in sliding guide (28) inner wall both sides guide rail (33), actuating lever (34) fixed connection is at the lower terminal surface of drive cylinder (27), just actuating lever (34) one end links to each other with fixed plate (29) middle part is fixed, movable rod (32) sliding connection is in the inside of actuating lever (34), movable rod (32) deviate from one end fixedly connected with fly leaf (31) of actuating lever (34), fly leaf (31) sliding connection is in guide rail (33), the connecting plate (30) is fixedly connected to one side of the movable plate (31).
5. The rapid testing device for the resistance reducing performance of the large Reynolds number according to claim 4, wherein: one end of the connecting plate (30) departing from the movable plate (31) is fixedly connected with the bottom of the cylinder body (23).
6. The device for rapidly testing the resistance-reducing performance of the large Reynolds number according to claim 1, wherein: the transmission device (14) comprises a transmission rod (35), a coupler (36), a torsion detector (37), a connecting rod (38), a static level gauge (39), a detection piece (40), a reinforcing piece (41) and a sealing cover plate (42), the transmission rod (35) is connected with a driving motor (2) in a driving way, the coupler (36) is fixedly connected to the lower end face of the transmission rod (35), the torsion detector (37) is fixedly installed on the lower end face of the coupler (36), the connecting rod (38) is fixedly connected to the lower end face of the torsion detector (37), the detection piece (40) is fixedly connected to the lower end face of the connecting rod (38), the sealing cover plate (42) is rotatably connected to the side end face of the connecting rod (38), the static level gauge (39) is fixedly installed in the middle of the upper end face of the sealing cover plate (42), the reinforcing piece (41) is fixedly connected to the upper end face of the sealing cover plate, the lower end face of the sealing cover plate (42) is provided with a sealing groove matched with the annular bulge (21), a sealing rubber strip is filled in the sealing groove, and a fixing hole matched with the threaded hole (22) is formed in the sealing cover plate (42).
7. The rapid testing device for the resistance reducing performance of the large Reynolds number according to claim 6, wherein: the static force level gauge (39) is rotatably connected with the connecting rod (38) through a rotating shaft.
8. The device for rapidly testing the resistance-reducing performance of the large Reynolds number according to claim 6 or 7, wherein: the upper surface of the reinforcing piece (41) is fixedly connected with the bearing layer (4).
9. The device for rapidly testing the resistance-reducing performance of the large Reynolds number according to claim 1, wherein: the control device (5) is electrically connected with the driving motor (2), the liquid storage device (6), the oil hydraulic pump (9), the electromagnetic valve (24), the detection sensor (25) and the torsion detector (37).
10. The utility model provides a big reynolds number drag reduction performance quick test device's detection principle which characterized in that: observe spirit level (16), and adjust the joint length of regulation pole (18) and bracing piece (15) through rotating regulation portion (19), and then adjust adjustable supporting legs (10) height, through adjusting adjustable supporting legs (10) height, loading board (8) are in the level, confirm sealed apron (42) level through static spirit level (39) simultaneously, and then guarantee that detection piece (40) are in vertical state, paint spraying that will await measuring is at detection piece (40) surface and dry the back, control actuating lever (34) through actuating cylinder (27) and drive movable rod (32) and go up and down, and then drive barrel main part (23) and sealed apron (42) closure make barrel main part (23) inside airtight, fill up test liquid in barrel main part (23) through stock solution device (6) and solenoid valve (24), drive driving drive motor (2) drive transfer line (35) and drive detection piece (40) under shaft coupling (36) and connecting rod (38) effect and rotate detection piece (40) and rotate And the resistance reduction performance of the coating to be detected under the condition of large Reynolds number can be intuitively achieved by observing the detection data of the torsion detector (37) and the detection sensor (25).
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