CN115200829B - Test section interchangeable wallboard expands angle follow-up matching spray pipe profile - Google Patents
Test section interchangeable wallboard expands angle follow-up matching spray pipe profile Download PDFInfo
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- CN115200829B CN115200829B CN202211120562.0A CN202211120562A CN115200829B CN 115200829 B CN115200829 B CN 115200829B CN 202211120562 A CN202211120562 A CN 202211120562A CN 115200829 B CN115200829 B CN 115200829B
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- 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
- G01M9/02—Wind tunnels
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Abstract
The invention discloses a test section replaceable wall plate expansion angle follow-up matching spray pipe molded surface, wherein a spray pipe section flexible plate is detachably connected with a test section wall plate; the adjusting arm is rotatably connected right above the theoretical outlet position of the profile of the flexible plate; the connecting seat is connected between the adjusting arm and the wall plate of the test section; the driving assembly and the linear driving device are respectively positioned on two sides of the theoretical outlet position of the profile of the flexible plate; the output end of the driving assembly is rotatably connected with the flexible plate of the spray pipe section, and the output end of the linear driving device is rotatably connected with the adjusting arm. The invention is used for solving the problems that the front wallboard and the flexible board of the test section in the prior art are integrally processed and formed and cannot be replaced, and the transonic test capability of equipment is limited, realizing that the wallboard of the test section can be replaced, the expansion angle can be matched with the outlet angle of the flexible board of the spray pipe section in a follow-up manner, realizing pneumatic profiles with different outlet inclination angles, meeting the requirements of the equipment on developing supersonic speed and transonic speed tests, and simultaneously keeping the continuous and smooth profiles of the spray pipe section and the test section flow passage.
Description
Technical Field
The invention relates to the field of wind tunnel structures, in particular to a test section replaceable wall plate expansion angle follow-up matching spray pipe molded surface.
Background
The jet pipe section and the test section are key sections in wind tunnel equipment, and the continuous smoothness of a flow passage molded surface formed by connecting the jet pipe section and the test section has important influence on the flow field quality of the wind tunnel. In the conventional design, the smoothness of the flow channel is damaged by the straight sections formed by connecting the two sections through flanges, and the quality of the flow field is influenced. The front part of the test section is brought into the spray pipe section in the integrated design, so that the continuous smoothness of the molded surface of the flow channel is ensured in a certain range, the influence of the flat and straight section of the flange on the flow field of the first diamond area is avoided, and the quality of the flow field is improved. However, in the existing design, the front wall plate of the test section and the molded surface wall of the spray pipe are integrally processed and formed, so that the test cannot be carried out, and the related groove wall and hole wall tests cannot be carried out, thereby influencing the quality of the transonic flow field of the wind tunnel. Meanwhile, in order to improve the operating efficiency of the wind tunnel equipment, the spray pipes are mostly designed to be semi-flexible or fully flexible, so that the variable Mach number multi-working-condition operation is realized. Under different Mach number working conditions, the aerodynamic profile of the nozzle has different inclination angles at the theoretical outlet. The mode that a screw is fixedly connected with a spray pipe outlet profile wall (flexible plate) is commonly adopted in the existing design, pneumatic profiles with different inclination angles are difficult to realize, and the quality of a flow field is further influenced. Therefore, how to design and form a continuous and smooth flow channel molded surface and realize the replacement of the test section wall plate and the Mach number molded surface with different inclination angles simultaneously is a technical problem to be solved urgently in the field of wind tunnel structure design.
Disclosure of Invention
The invention provides a test section replaceable wall plate expanding angle follow-up matching spray pipe profile, wherein two sections form a continuous smooth flow passage profile, so that the problems that the quality of a wind tunnel transonic flow field is influenced because a test section front wall plate and a spray pipe profile wall (flexible plate) are integrally processed and formed and cannot be replaced in the prior art, and the quality of the wind tunnel flow field is influenced because a structural profile at a theoretical outlet of a spray pipe is difficult to realize a pneumatic profile with different inclination angles are solved, and the requirements of wind tunnel equipment on transonic and supersonic tests are met, and the quality of the flow field is improved.
The invention is realized by the following technical scheme:
the test section replaceable wallboard spread angle follow-up matching spray pipe molded surface comprises a spray pipe section and a test section, wherein the spray pipe section comprises a spray pipe section frame and a spray pipe section flexible plate, the test section comprises a test section frame and a test section wallboard, the spray pipe section frame is connected with the test section frame through a flange, and the spray pipe section flexible plate is detachably connected with the test section wallboard;
the device also comprises a driving component, a linear driving device, an adjusting arm and a connecting seat;
the adjusting arm is rotatably connected above the theoretical outlet position of the profile of the flexible plate; the connecting seat is connected between the adjusting arm and the test section wall plate;
the driving assembly and the linear driving device are respectively positioned on two sides of the theoretical outlet position of the profile of the flexible plate, the output end of the driving assembly is rotatably connected with the flexible plate of the spray pipe section, and the output end of the linear driving device is rotatably connected with the adjusting arm.
Aiming at the problems that in the prior art, a test section front wall plate and a spray pipe profile wall (flexible plate) are integrally processed and formed and cannot be replaced, the quality of a wind tunnel transonic flow field is influenced, and a structural profile at a theoretical outlet of the spray pipe is difficult to realize a pneumatic profile with different inclination angles, the invention provides a design method for matching the expansion angle follow-up of the test section replaceable wall plate with the profile of the spray pipe, wherein a spray pipe section, a test section, a spray pipe section frame, a spray pipe section flexible plate, a test section frame and a test section wall plate are all in the prior art; and the expansion angle of the test section wall plate can be matched with the flexible plate profile of the spray pipe section in a follow-up manner, so that a continuous and smooth flow channel profile is formed, and the flow field quality is ensured.
When the flexible jet pipe section flexible plate driving device is used, the driving assembly and the linear driving device can be linked and can be independently controlled, and the rotating direction and the angle of the adjusting arm/test section wall plate driven by the linear driving device are only required to be ensured to be equal to the rotating direction and the angle of the flexible jet pipe section driven by the driving assembly. Preferably, the position feedback information is provided by an encoder, and the control of the linear driving device is realized through the profile state of the flexible plate of the spray pipe section.
In addition, because can dismantle between spout the pipeline section flexible board and the experimental section wallboard and be connected in this application, consequently when needing to change experimental section wallboard, only need open spout pipeline section lateral wall and experimental section lateral wall, unpack apart being connected of experimental section wallboard and flexible board, remove experimental section wallboard from experimental section or spout pipeline section side, with the experimental section wallboard that will change of same mode immigration, the reassembly resets, can accomplish the change work of experimental section wallboard. Therefore, the method and the device can exchange the real wall and the groove wall or the hole wall of the test section, so that the wind tunnel has the capability of developing the supersonic speed test and the transonic speed test, and the requirements for developing the supersonic speed test and the transonic speed test are met.
The "theoretical outlet position of the flexible plate profile" described in the present application refers to the position of the terminal point of the aerodynamic profile of the nozzle, and is not described herein.
Furthermore, the flexible spraying pipe section board is connected with the test section wall board through screws, a groove is formed in the flexible spraying pipe section board, a bulge matched with the groove is formed in the test section wall board, and the bulge is coupled in the groove. This scheme is through the recess and the arch of mutually supporting to realize the transverse orientation of experimental section wallboard. Of course, the other wall plates to be replaced also need to be provided with the same bulges, so that the wall plates can be quickly positioned after being replaced every time.
Furthermore, the adjusting arm is rotatably connected right above the theoretical outlet position of the profile of the flexible plate through a pin shaft A; the spraying pipe is characterized by further comprising a fixed hinge seat and an outlet hinge seat which are matched with the pin shaft A, wherein the fixed hinge seat is fixedly connected with the spraying pipe section frame, and the outlet hinge seat is fixedly connected with the spraying pipe section flexible plate.
According to the scheme, the pin shaft A is utilized to connect the adjusting arm, the outlet hinge seat and the fixed hinge seat together so as to realize the rotary connection of the adjusting arm at the theoretical outlet position of the profile of the flexible plate; wherein the fixed hinge seat and the outlet hinge seat are respectively used for realizing the matching between the pin shaft A and the spraying pipe section frame and the spraying pipe section flexible plate.
Furthermore, the two ends of the pin shaft A are provided with split pins, and self-lubricating shaft sleeves A are arranged between the pin shaft A and the fixed hinge seat and between the pin shaft A and the outlet hinge seat. The split pin is used for preventing the pin shaft A from moving in a large transverse range, and the self-lubricating shaft sleeve A is used for reducing the friction resistance of the whole system.
Furthermore, drive assembly deviates from the electric putter of test section place one side including being located flexible profile theory exit position, electric putter's output down, and be connected through flexible board hinge seat between electric putter's the output and the flexible board. The driving assembly is used for adjusting the flexible plates to form different Mach number (pneumatic) profiles, so that the driving assembly is positioned on the side, away from the test section, of the theoretical outlet position of the flexible plate profile. Due to the existence of the flexible plate hinge seat, when the electric push rod extends out, the flexible plate hinge seat moves obliquely, and then the flexible plate is driven to rotate.
Furthermore, the linear driving device comprises a spiral lifter with a downward output end, the output end of the spiral lifter is connected with a connecting rod, and the connecting rod and the adjusting arm are in running fit with the pin B.
The linear driving device is used for adjusting the expansion angle of the wall panel of the test section, pneumatic profiles with different inclination angles are realized by the following matching spray pipe flexible plate, and continuous and smooth flow channel profiles are formed.
Furthermore, the pin B penetrates through the free end of the adjusting arm and the bottom end of the connecting rod, a sliding block is assembled between the pin B and the adjusting arm, and the sliding block is installed in a sliding groove at the free end of the adjusting arm; a self-lubricating shaft sleeve B is assembled between the pin shaft B and the connecting rod; the limiting component is used for limiting the axial movement of the pin shaft B and the sliding block.
In the scheme, the connecting rod drives the sliding block to move linearly through the pin B. For avoiding the interference between the linear motion of spiral elevator and the rotary motion of regulating arm, set up slider and corresponding spout, consequently round pin axle B both is rectilinear movement and is rotary motion relatively this spout, consequently this in-process is the slider promptly and drives the regulating arm rotation, and the regulating arm passes through the connecting seat and drives experimental section wallboard rotation. Therefore, the flexible plate and the test section wall plate rotate around the same rotating point, so that the pneumatic profiles with different outlet inclination angles can be realized, and the continuous smooth transition between the flexible plate of the spray pipe and the test section wall plate can be ensured, thereby forming a continuous and smooth flow channel profile.
Furthermore, the limiting assembly comprises a first limiting part and a second limiting part which are respectively arranged at two ends of the pin shaft B, and a check ring which is arranged between the sliding block and the self-lubricating shaft sleeve B and is sleeved on the pin shaft B.
The first limiting piece and the second limiting piece cannot penetrate through the sliding block or the connecting rod along with the pin B, so that the axial limiting of the pin B is ensured to avoid axial movement of the pin B; the retainer ring is used for axially restraining the sliding block and also avoiding axial movement of the sliding block.
Furthermore, the connecting rod is connected with the output end of the spiral elevator through threads, the spiral elevator further comprises a guide seat fixedly connected with the test section frame, a guide sleeve matched with the connecting rod is assembled in the guide seat in an interference fit mode, and the guide sleeve achieves constraint reinforcement with the guide seat through a jackscrew; the connecting rod movably penetrates through the guide sleeve.
The guide seat is used for providing an installation station for the guide sleeve, ensuring the relative fixation of the guide sleeve and the test section frame and avoiding the transverse bearing of the spiral lifter; the guide sleeve plays a role in lubricating and guiding the connecting rod. The jackscrew is used for preventing guide sleeve breaks away from the guide holder when the connecting rod moves to improve the regulation stability to the test section wallboard.
The device further comprises a sealing assembly, wherein the sealing assembly is used for sealing between the flow channel and the test section chamber, between the flow channel and the spray pipe section chamber, between the test section chamber and the spray pipe section chamber, between the flow channel and the external environment, between the test section chamber and the external environment and between the spray pipe section chamber and the external environment.
In order to ensure the quality of the flow field, the interior of the flow channel needs to be kept in a sealing state with the section between the flow channel and the outside environment, and the scheme prevents the target flow field from being damaged due to gas flow channeling through the sealing assembly. The flow channel, the test section chamber, the nozzle section chamber, etc. are known technical terms of those skilled in the art, and are not described herein.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention relates to a test section replaceable wall plate expansion angle follow-up matching spray pipe molded surface, which abandons the design idea of integral molding of a test section front wall plate and a spray pipe section flexible plate in the prior art, when the test section wall plate needs to be replaced, only the spray pipe section side wall and the test section side wall need to be opened, the connection between the test section wall plate and the flexible plate is disassembled, the test section wall plate is removed from the test section or the spray pipe section side surface, the test section wall plate to be replaced is moved in the same way, and the test section wall plate can be reassembled and reset, so that the replacement work of the test section wall plate can be completed. Therefore, the method and the device can exchange the real wall and the groove wall or the hole wall of the test section, so that the wind tunnel has the capability of developing the supersonic speed test and the transonic speed test, the requirements of developing the supersonic speed test and the transonic speed test are met, and the test capability of the wind tunnel equipment is remarkably expanded.
2. The test section replaceable wall plate expanding angle follow-up matching spray pipe molded surface is provided with the adjusting arm, the adjusting arm is rotatably connected to the theoretical outlet position of the flexible plate molded surface, the output of the driving assembly drives the spray pipe section flexible plate to rotate around the rotating connection point of the adjusting arm, and the output of the linear driving device drives the test section wall plate to rotate around the rotating connection point of the adjusting arm, so that the inclination angle setting under different molded surfaces is met, a continuous and smooth flow passage molded surface is formed, and the quality of a flow field is ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is an overall schematic diagram of an embodiment of the present invention;
FIG. 2 is a partial schematic view of an embodiment of the present invention;
FIG. 3 is a schematic view of the connection of a spray pipe segment flexible plate and a test segment wall plate according to an embodiment of the present invention;
FIG. 4 is a schematic view of a portion of a pin A according to an embodiment of the present invention;
FIG. 5 is a schematic view of the connection of the adjustment arm, the connection base and the test section wall plate in an embodiment of the present invention;
FIG. 6 is a schematic view of the connection of the linear driving apparatus according to the embodiment of the present invention;
FIG. 7 is a cross-sectional view taken along line E-E of FIG. 6;
FIG. 8 is an enlarged partial schematic view at I of FIG. 6;
FIG. 9 is a schematic view of a seal assembly according to an embodiment of the present invention.
Reference numbers and corresponding part names in the figures:
1-a spray pipe section; 2-test section; 3-a spray pipe section frame; 4-spout outlet flange; 5-a test section inlet flange; 6-test section frame; 7-electric push rod; 8-a flexible plate hinge seat; 9-spraying pipe section flexible plate; 10-fixing the hinge seat; 11-an outlet hinge mount; 12-pin axis A; 13-test section wall panel; 14-a connecting seat; 15-an adjusting arm; 16-pin B; 17-a connecting rod; 18-a guide seat; 19-an encoder; 20-a screw elevator; 21-a motor; 22-lap seal; 23-side wall of the spray pipe section; 24-a cotter pin; 25-self-lubricating shaft sleeve A; 26-runner side seals; 27-parking room side sealing strip a; 28-test section side wall; 29-adjusting the backing plate; 30-a compression nut; 31-a gland; 32-a slide block; 33-a retainer ring; 34-self-lubricating shaft sleeve B; 35-a guide sleeve; 36-jackscrew; 37-O type sealing ring; 38-resident cross seal; 39-standing room side sealing strip B; 40-test section sidewall seal.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention. In the description of the present application, it is to be understood that the terms "front", "back", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the scope of the present application.
Example 1:
a test section replaceable wall plate spread angle follow-up matching spray pipe molded surface is shown in figures 1 to 8 and comprises a spray pipe section 1 and a test section 2, wherein the spray pipe section 1 comprises a spray pipe section frame 3 and a spray pipe section flexible plate 9, the test section 2 comprises a test section frame 6 and a test section wall plate 13, the spray pipe section frame 3 and the test section frame 6 are in flange connection, and the test section replaceable wall plate matched spray pipe molded surface is characterized in that the spray pipe section flexible plate 9 and the test section wall plate 13 are detachably connected;
the device also comprises a driving component, a linear driving device, an adjusting arm 15 and a connecting seat 14;
the adjusting arm 15 is rotatably connected right above the theoretical outlet position of the flexible plate profile; the connecting seat 14 is connected between the adjusting arm 15 and the test section wall plate 13;
the driving assembly and the linear driving device are respectively positioned on two sides of the theoretical outlet position of the molded surface of the flexible plate, the output end of the driving assembly is rotatably connected with the flexible plate 9 of the spraying pipe section, and the output end of the linear driving device is rotatably connected with the adjusting arm 15.
The flexible spraying pipe section board 9 is connected with the flexible testing section board 13 through screws, a groove is formed in the flexible spraying pipe section board 9, a bulge matched with the groove is formed in the flexible testing section board 13, and the bulge is coupled in the groove.
The adjusting arm 15 is rotatably connected right above the theoretical outlet position of the profile of the flexible plate through a pin shaft A12; the spray pipe section frame is characterized by further comprising a fixed hinge seat 10 and an outlet hinge seat 11 which are matched with the pin shaft A12, wherein the fixed hinge seat 10 is fixedly connected with the spray pipe section frame 3, and the outlet hinge seat 11 is fixedly connected with the spray pipe section flexible plate 9.
Both ends of the pin shaft A12 are provided with split pins 24, and self-lubricating shaft sleeves A25 are respectively arranged between the pin shaft A12 and the fixed hinge seat 10 and between the pin shaft A12 and the outlet hinge seat 11.
The present embodiment can mainly realize the following functions: firstly, the expansion angle of the wall plate at the test section can be matched with the profile of the flexible plate of the spray pipe in a follow-up manner, so that pneumatic profiles with different inclination angles are realized, and meanwhile, a continuous and smooth flow channel profile is formed, and the flow field quality is improved; and secondly, the test section wall plate is replaceable, so that a solid wall, a groove wall or a hole wall can be conveniently replaced, the requirements of the wind tunnel equipment for carrying out supersonic speed and transonic speed tests are met, and the test capability of the wind tunnel equipment is expanded.
In this embodiment, the driving assembly is composed of a plurality of driving devices, and is used for driving the flexible plate 9 of the nozzle segment to be bent and formed into a required mach number profile, and the driving mode of the driving assembly is set by a person skilled in the art adaptively according to actual working conditions, which is not limited herein.
In a more specific embodiment, the drive assembly is longitudinally movable and oscillates from side to side with a small amplitude, and when linked to the flex panel, allows the flex panel to flex about the connection point and prevents the flex panel from oscillating from side to side.
Example 2:
the utility model provides a test section interchangeable wallboard expands angle follow-up matching spray tube profile, on embodiment 1's basis, drive assembly includes that the theoretical exit position of flexible board profile deviates from electric putter 7 of test section 2 place one side, and electric putter 7's output is down, and is connected through flexible board hinge mount 8 between electric putter 7's the output and the spout section flexible board 9.
The linear driving device comprises a spiral lifter 20 with a downward output end, the output end of the spiral lifter 20 is connected with a connecting rod 17, and the connecting rod 17 and the adjusting arm 15 are in running fit with a pin B16.
As shown in fig. 6, the pin B16 passes through the free end of the adjusting arm 15 and the bottom end of the connecting rod 17, a sliding block 32 is assembled between the pin B16 and the adjusting arm 15, and a movement space is formed between the sliding block 32 and the adjusting arm 15; a self-lubricating shaft sleeve B34 is assembled between the pin shaft B16 and the connecting rod 17; and the limiting component is used for limiting the axial movement of the pin shaft B16 and the sliding block 32.
The limiting assembly comprises a first limiting part and a second limiting part which are respectively positioned at two ends of the pin shaft B16, and a retaining ring 33 which is arranged between the sliding block 32 and the self-lubricating shaft sleeve B34 and is sleeved on the pin shaft B16.
The connecting rod 17 is connected with the output end of the spiral elevator 20 through threads, the spiral elevator further comprises a guide seat 18 fixedly connected with the test section frame 6, a guide sleeve 35 matched with the connecting rod 17 is assembled in the guide seat 18 in an interference fit mode, and the guide sleeve 35 achieves constraint reinforcement with the guide seat 18 through a jackscrew 36; the connecting rod 17 passes through the guide sleeve 35.
The detailed design concept of the embodiment is as follows:
s1, changing the fixed constraint of an outlet of a flexible plate 9 of a spray pipe section in the existing design into hinge constraint, namely arranging a group of hinge seats at an outlet of a theoretical profile of the flexible plate of the spray pipe, wherein one hinge seat is connected with the flexible plate, and the other hinge seat is connected with a frame 3 of the spray pipe section. The two hinge seats are connected by a pin shaft. Therefore, the flexible plate can rotate around the pin shaft within a certain range to realize the inclination angles under different molded surfaces.
S2, in order to realize the replacement of the test section wall plate, a design method of lapping the test section wall plate and the flexible plate is adopted, and the test section wall plate and the flexible plate are connected through screws. In order to ensure the smooth and continuous profile of the flow channel and facilitate the installation of the flow channel and the profile, the flexible plate of the spray pipe section extends backwards for a section at the outlet of the theoretical profile, and the extending part is lapped with the wall plate of the test section.
And S3, in order to realize the follow-up matching of the wallboard of the test section with the molded surface of the flexible board, the wallboard of the test section is required to rotate in a certain range around the pin shaft in the S1. Therefore, an adjusting arm is designed, the front end of the adjusting arm is arranged on the pin shaft in the S1, the rear end of the adjusting arm is arranged on an actuating mechanism, and the actuating mechanism can drive the adjusting arm to rotate around the pin shaft in the S1. The test section wallboard is rigidly connected with the adjusting arm by a connecting seat.
And S4, the execution mechanism is realized by adopting a mode of driving a spiral lifter by a motor, and the spiral lifter 20 is installed on the test section frame. In order to avoid interference between linear motion of the spiral elevator and rotary motion of the adjusting arm, a sliding groove is designed at the rear end of the adjusting arm, a sliding block is installed in the sliding groove, and a pin shaft is installed in the sliding block. Thus, the pin shaft can move and rotate relative to the sliding groove. The pin shaft is connected with the output end of the spiral lifter through the connecting rod, so that the problem of motion interference is avoided.
And S5, considering the bearing and room-parking sealing requirements of the spiral elevator, a guide seat is installed on the connecting rod in the S4, and the guide seat is installed on the test section frame. And the guide seat, the test section frame and the connecting rod are sealed by adopting O-shaped rings.
And S6, in order to meet the requirement of profile matching, the spiral elevator in the S4 is provided with an encoder to provide position feedback information. In the test process, the driving motor in the S4 drives the spiral lifter to do linear motion according to the state of the molded surface of the flexible plate of the spray pipe section, the test section wallboard is driven to rotate around the pin shaft in the S1 through the connecting rod-pin shaft-slide block-adjusting arm-connecting seat transmission chain, the matching with the molded surface of the spray pipe section is completed, the pneumatic molded surfaces under different inclination angles are realized, and the continuous and smooth flow channel molded surfaces are formed.
S7, when the test section wallboard is replaced, the side wall of the spraying pipe section and the side wall of the test section are opened, the connection between the test section wallboard and the flexible plate and the connection seat are sequentially disassembled, the test section wallboard is removed from the side surface of the test section or the spraying pipe section, the test section wallboard to be replaced is moved in the same mode, the connection screws of the test section wallboard, the connection seat and the flexible plate are sequentially screwed, the sealing strip on the side surface of the test section wallboard is installed, the side wall of the spraying pipe section and the side wall of the test section are installed, and the replacement work of the test section wallboard is completed.
Example 3:
a test section wall plate adjusting method and a spray pipe molded surface expanding angle follow-up matching method comprise the following steps:
And 2, extending the flexible plate 9 of the spray pipe section backwards for a certain distance for connecting with a wall plate (a solid wall, a groove wall or a hole wall) 13 of the test section, wherein the two are connected through a screw, as shown in fig. 4. In order to facilitate the transverse positioning of the test section wall plate 13, a trapezoidal groove is formed in the flexible plate 9, a trapezoidal protrusion is additionally arranged on the test section wall plate 13, and the two parts are matched to complete the transverse positioning, as shown in fig. 3.
And 3, installing an outlet hinge seat 11 on the flexible plate 9 right above the theoretical molded surface outlet position as shown in figure 2, and connecting the outlet hinge seat and the flexible plate through screws as shown in figure 4.
And 4, connecting the adjusting arm 15, the outlet hinge seat 11 and the fixed hinge seat 10 together by using a pin shaft A12, wherein in order to prevent the pin shaft A12 from moving in a large range along the transverse direction, two ends of the pin shaft A12 are provided with cotter pins 24, as shown in figure 4. Meanwhile, in order to reduce the friction resistance, a self-lubricating shaft sleeve A25 is arranged between the pin shaft A12 and the fixed hinge seat 10 and between the pin shaft A and the outlet hinge seat 11.
And step 5, connecting the tail end of the adjusting arm 15 with the connecting rod 17 through the sliding block 32 and the pin B16, as shown in FIG. 6. In order to reduce the friction resistance between the pin B16 and the connecting rod 17, a self-lubricating shaft sleeve B34 is arranged between the pin B16 and the connecting rod. In order to prevent the sliding block 32 and the pin shaft B16 from moving transversely, one end of the pin shaft B16 is restrained by the boss, the other end of the pin shaft B16 is restrained by the nut 30 compressing the gland 31, and meanwhile, a retainer ring 33 is arranged between the sliding block 32 and the self-lubricating shaft sleeve B34 for restraining. The slide 32 is mounted in a slide slot in the adjustment arm 15 as shown in fig. 7. The pin B16 is relatively movable with respect to the adjusting arm 15, and can also be relatively rotatable.
And 7, connecting the front end of the test section wall plate 13 with the flexible plate 9 through a screw, and connecting the front end of the test section wall plate with an adjusting arm 15 through two connecting seats 14 as shown in fig. 2. The connecting seat 14, the adjusting arm 15 and the test section wall plate 13 are connected through screws and positioned through pins, as shown in fig. 7. In order to adjust the position relationship between the adjusting arm 15 and the test segment wall plate 13, an adjusting shim plate 29 is arranged between the adjusting arm 15 and the test segment wall plate 13, and the relative position of the adjusting arm 15 and the test segment wall plate 13 is adjusted through different shim plate thicknesses. In the mechanism adjusting process, the adjusting arm 15 and the test section wall plate 13 are always kept in rigid motion.
And 9, when the test section wallboard 13 needs to be replaced between the solid wall and the groove wall and the hole wall, opening the side wall 23 of the spraying pipe section and the side wall 28 of the test section, sequentially disconnecting the test section wallboard 13, the flexible plate 9 and the connecting seat 14, removing the wallboard from the side surface of the test section or the spraying pipe section, moving the needed wallboard in, and sequentially screwing the connecting screws of the test section wallboard 13, the connecting seat 14 and the flexible plate 9 to finish the replacement of the test section wallboard 13.
Example 4:
on the basis of any one of the above embodiments, in order to ensure the quality of the flow field, the interior of the flow channel needs to be kept in a sealed state with the segment chamber and the external environment, so as to prevent the target flow field from being damaged due to gas flow. As shown in fig. 9, the sealing in the present embodiment can be divided into sealing between the flow channel and the residence chamber, sealing between the residence chamber and the residence chamber, and sealing between the flow channel and the residence chamber and the external environment; the method specifically comprises the following steps:
1. sealing the flow channel and the standing chamber: the first is the dynamic seal between the spray pipe section flexible plate 9 and the test section wall plate 13 and the side walls and flanges of the two sections, as shown by the sealing strips 26 in fig. 4 and 5. The second is static sealing at the joint of the spray pipe section flexible plate 9 and the test section wall plate 13, as shown by a sealing strip 22 in fig. 3. In fig. 4 and 5, the spray pipe section flexible plate 9 and the test section wall plate 13 are provided with sealing grooves with the same size and position on two sides so as to be filled with the same sealing strip 26, and sealing is realized by pressing the side wall and the flange;
2. sealing between the test section chamber and the spray pipe section chamber: the static sealing (standing chamber side sealing strip A27 in figure 9) of the fixed hinge seat 10 and the side wall of the spraying pipe section, the dynamic sealing (standing chamber side sealing strip B39 in figure 9) of the outlet hinge seat 11 and the side wall of the spraying pipe section and the dynamic sealing (standing chamber transverse sealing strip 38 in figure 9) between the outlet hinge seat and the fixed hinge seat are mainly relied on for realizing. Wherein, the sealing grooves at two sides of the outlet hinge seat 11 need to be communicated with two sides of the flexible plate 9 in a sealing way (between the standing chamber side sealing strip B39 and the runner side sealing strip 26), and the sliding sealing groove of the fixed hinge seat 10 needs to be communicated with the static sealing grooves at two sides thereof (between the standing chamber transverse sealing strip 38 and the standing chamber side sealing strip a 27);
3. a sealing groove is designed between the test section connecting rod 17 and the guide sleeve 35: an O-shaped sealing strip 37 is arranged, as shown in FIG. 8, to keep the test section chamber sealed from the outside environment;
4. on the basis of all the seals, seal grooves (a parking chamber side seal strip A27 and a test section side wall seal strip 40 in fig. 9) are designed on the two section frames and the flanges, seal strips are installed and the section side walls are installed, and seal strips are designed and installed between the connecting surfaces of the outlet flange 4 and the test section inlet flange 5 of the spray pipe section, so that the seal between the flow channel and the section parking chamber and the external environment can be realized.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
It is noted that, herein, relational terms such as first and second, a and B, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, the term "connected" used herein may be directly connected or indirectly connected via other components without being particularly described.
Claims (10)
1. The test section replaceable wall plate spread angle follow-up matching spray pipe molded surface comprises a spray pipe section (1) and a test section (2), wherein the spray pipe section (1) comprises a spray pipe section frame (3) and a spray pipe section flexible plate (9), the test section (2) comprises a test section frame (6) and a test section wall plate (13), and the spray pipe section frame (3) and the test section frame (6) are connected through flanges;
the device also comprises a driving component, a linear driving device, an adjusting arm (15) and a connecting seat (14);
the adjusting arm (15) is rotatably connected to the theoretical outlet position of the profile of the flexible plate; the connecting seat (14) is connected between the adjusting arm (15) and the test section wall plate (13);
the driving assembly and the linear driving device are respectively positioned at two sides of the theoretical outlet position of the profile of the flexible plate, the output end of the driving assembly is rotatably connected with the flexible plate (9) of the spray pipe section, and the output end of the linear driving device is rotatably connected with the adjusting arm (15).
2. The test section replaceable wall plate spread angle follow-up matching spray pipe profile as claimed in claim 1, wherein the spray pipe section flexible plate (9) is connected with the test section wall plate (13) through a screw, a groove is formed in the spray pipe section flexible plate (9), a protrusion matched with the groove is formed in the test section wall plate (13), and the protrusion is coupled in the groove.
3. The test section replaceable wall plate spread angle follow-up matching spray pipe profile according to claim 1, wherein the adjusting arm (15) is rotatably connected right above a theoretical outlet position of the flexible plate profile through a pin shaft A (12); the spray pipe section frame is characterized by further comprising a fixed hinge seat (10) and an outlet hinge seat (11) which are matched with the pin shaft A (12), wherein the fixed hinge seat (10) is fixedly connected with the spray pipe section frame (3), and the outlet hinge seat (11) is fixedly connected with the spray pipe section flexible plate (9).
4. The test section replaceable wall plate spread angle follow-up matching spray pipe profile according to claim 3, wherein split pins (24) are arranged at two ends of the pin shaft A (12), and self-lubricating shaft sleeves A (25) are arranged between the pin shaft A (12) and the fixed hinge base (10) and between the pin shaft A and the outlet hinge base (11).
5. The test section replaceable wall plate spread angle follow-up matching spray pipe profile according to claim 1, wherein the driving assembly comprises an electric push rod (7) located on one side, away from the test section (2), of a theoretical outlet position of the flexible plate profile, the output end of the electric push rod (7) faces downwards, and the output end of the electric push rod (7) is connected with a flexible plate hinge seat (8) of the spray pipe section flexible plate (9).
6. The test section replaceable wall plate spread angle follow-up matching nozzle profile according to claim 1, wherein the linear driving device comprises a spiral lifter (20) with an output end facing downwards, the output end of the spiral lifter (20) is connected with a connecting rod (17), and the connecting rod (17) and the adjusting arm (15) are in rotating fit with a pin B (16).
7. The test section replaceable wall plate spread angle follow-up matching nozzle profile is characterized in that a pin B (16) penetrates through the free end of an adjusting arm (15) and the bottom end of a connecting rod (17), a sliding block (32) is assembled between the pin B (16) and the adjusting arm (15), and the sliding block (32) is installed in a sliding groove of the free end of the adjusting arm (15); a self-lubricating shaft sleeve B (34) is assembled between the pin shaft B (16) and the connecting rod (17); the limiting component is used for limiting the axial movement of the pin shaft B (16) and the sliding block (32).
8. The test section replaceable wall plate spread angle follow-up matching nozzle profile according to claim 7, wherein the limiting assembly comprises a first limiting member and a second limiting member respectively located at two ends of the pin shaft B (16), and a retaining ring (33) installed between the sliding block (32) and the self-lubricating shaft sleeve B (34) and sleeved on the pin shaft B (16).
9. The test section replaceable wall plate spread angle follow-up matching spray pipe profile is characterized in that the connecting rod (17) is in threaded connection with the output end of the spiral elevator (20), the test section replaceable wall plate follow-up matching spray pipe profile further comprises a guide seat (18) fixedly connected with the test section frame (6), a guide sleeve (35) matched with the connecting rod (17) is assembled in the guide seat (18) in an interference mode, and the guide sleeve (35) is restrained with the guide seat (18) through a jackscrew (36); the connecting rod (17) movably penetrates through the guide sleeve (35).
10. The test section replaceable wall plate spread angle follow-up matching nozzle profile of claim 1, further comprising a seal assembly for sealing between the flow channel and the test section parking room, between the flow channel and the nozzle section parking room, between the test section parking room and the nozzle section parking room, between the flow channel and the external environment, between the test section parking room and the external environment, and between the nozzle section parking room and the external environment.
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