CN115717981A - Chamber parking device for multiple spray pipes in wind tunnel test and using method - Google Patents
Chamber parking device for multiple spray pipes in wind tunnel test and using method Download PDFInfo
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- CN115717981A CN115717981A CN202310028992.8A CN202310028992A CN115717981A CN 115717981 A CN115717981 A CN 115717981A CN 202310028992 A CN202310028992 A CN 202310028992A CN 115717981 A CN115717981 A CN 115717981A
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Abstract
The invention discloses a chamber parking device for multiple spray pipes in a wind tunnel test and a using method thereof, relating to the technical field of wind tunnel tests and comprising a main body, wherein the main body is provided with a universal chamber, the bottom end of the main body penetrates through the universal chamber and is provided with a gas source access hole, the top end of the main body penetrates through the universal chamber and is also provided with a plurality of pressure control holes, and the main body is also provided with a connecting part for connecting a tail support rod; the spray pipes are fixedly connected to the main body and are respectively communicated with the middle parts of the pressure control holes; and the plug mechanisms are used for regulating the communication or plugging state of the spray pipes and are in sealing connection with the pressure control holes. The invention realizes the centralized arrangement of a plurality of spray pipes at the same position, realizes the replacement of the jet flow combination state with higher efficiency on the premise of ensuring the accurate positioning and stability, and has the advantages of realizing large maneuvering regulation and control, high accuracy, ensuring that the spray pipes are not interfered with a model and being convenient for debugging.
Description
Technical Field
The invention relates to the technical field of wind tunnel tests, in particular to a parking device for multiple spray pipes in a wind tunnel test and a using method of the parking device.
Background
In order to avoid the problem of low efficiency of the air control surface in the high altitude, jet flow is adopted for attitude control, and the method is a method for the tendency of a plurality of aircrafts with wide speed ranges and wide airspace. Wind tunnel tests are an important means for analyzing the jet disturbance problem.
In the test process, the fact that if the aircraft needs large maneuvering regulation and control, more spray pipes are required to be installed at corresponding positions is found, the space of a test model is limited, the installation space of the single spray pipe is not available, and the installation requirement that multiple spray pipes are intensively arranged at the same position cannot be met. And the concentrated arrangement of the multiple spray pipes at the same position also involves the problems of no interference between the spray pipes and the model, positioning of the spray pipes, mounting and dismounting, efficient replacement of the spray flow combination state and the like.
Therefore, how to realize the concentrated arrangement of multiple spray pipes at the same position and more efficiently replace the jet flow combination state on the premise of ensuring accurate positioning and stability is the problem to be solved in the technical field.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
In order to achieve these objects and other advantages of the present invention, a chamber-holding device for multiple nozzles in a wind tunnel test is provided, which includes a main body provided with a common chamber, a gas source access hole formed through the common chamber at a bottom end of the main body, and a plurality of pressure control holes formed through the common chamber at a top end of the main body;
the main body is also provided with a connecting part for connecting the tail support rod;
the spray pipes are fixedly connected to the main body and are respectively communicated with the middle parts of the pressure control holes;
and the plug mechanisms are used for regulating the communication or plugging state of the spray pipes and are in sealing connection with the pressure control holes.
Preferably, the connecting portion is provided in a manner that:
an arc-shaped groove used for abutting against the peripheral wall of the tail support rod is arranged in the middle of one side of the main body;
the bottom end of the main body is symmetrically connected with a plurality of arc-shaped lugs, the inner walls of the arc-shaped lugs are used for abutting against the peripheral wall of the tail support rod, and the arc-shaped lugs are detachably connected with the tail support rod through bolts respectively;
the top of the main body is also provided with a thin groove used for binding the tail support rod through an iron wire.
Preferably, wherein the stopper mechanism comprises:
the long plug assembly is used for plugging the bottom of the pressure control hole and is detachably connected with the pressure control hole;
and the short plug assembly is used for plugging the top of the pressure control hole and is alternately used with the long plug assembly, and the short plug assembly is detachably connected with the pressure control hole.
Preferably, wherein the choke plug assembly comprises:
the first screw is in threaded connection with the pressure control hole, the tail end of the first screw is integrally formed and convexly provided with a connecting arm, and the connecting arm is sleeved and connected with the pressure control hole;
and the sealing gasket is fixedly connected to the tail end of the connecting arm, and the peripheral wall of the sealing gasket is abutted against the hole wall of the pressure control hole.
Preferably, wherein the choke plug assembly comprises:
a second screw threadedly coupled to the pressure control hole;
and the sealing ring is sleeved with the second screw, one end of the sealing ring is abutted against the main body, and the other end of the sealing ring is abutted against the head of the second screw.
Preferably, wherein, the main part is gone up along the air supply access hole has still welded the one end that the air supply inserted the pipe, just another tip inboard that the air supply inserted the pipe is provided with the welding groove that is used for welding the copper tubing.
A use method of a chamber-parking device for multiple spray pipes in a wind tunnel test comprises the following steps:
welding a plurality of spray pipes on a main body according to requirements, welding an air source access pipe at an air source access hole, and connecting a hose or welding a copper pipe through the air source access pipe according to requirements;
secondly, connecting the pressure control holes with the long plug assembly or the short plug assembly respectively according to the use requirement of the spray pipe so as to form a room standing device;
step three, pre-installing one or two room-parking devices on the tail support rod through an arc-shaped groove according to requirements, setting main bodies of the two room-parking devices to be the same in specification or to be matched with each other in size according to the requirements, and symmetrically pre-installing the two room-parking devices on the tail support rod;
adjusting the front and rear positions of the room holding device on the tail support rod according to the model position, and respectively locking a plurality of arc lugs on the tail support rod through screws;
and step five, binding and fixing the main body and the tail support rod through iron wires, wherein the iron wires are positioned in the thin grooves.
Preferably, the method for welding the copper tube by the gas source access pipe comprises the following steps:
sleeving one end part of the red copper pipe in a welding groove, welding along a gap between the red copper pipe and the welding groove, and fully filling the gap with welding liquid generated by welding.
The invention at least comprises the following beneficial effects:
firstly, the invention realizes the centralized arrangement of the multiple spray pipes at the same position, realizes the more efficient change of the jet flow combination state on the premise of ensuring the accurate positioning and the stability, realizes the rapid installation of the multiple spray pipes in the narrow model, simultaneously ensures that the spray pipes and the model do not interfere, and has the advantages of realizing large maneuvering regulation and control, high accuracy and convenient debugging.
Secondly, in the invention, the ventilation or non-ventilation state of the plurality of spray pipes is regulated and controlled by alternately using the long plug assembly and the short plug assembly, so that the spray flow combination state of the plurality of spray pipes is changed to meet different posture control requirements, and the invention has the advantages of convenient regulation and control and improvement of working efficiency.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of the present invention.
Fig. 2 is a schematic view of the installation of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a schematic structural view of the plug mechanism of the present invention.
Fig. 5 is a schematic view of the connection of the long plug assembly of the present invention.
Fig. 6 is a schematic view of the connection of the short plug assembly of the present invention.
Fig. 7 is a schematic view of the gas source connection pipe of the present invention.
Fig. 8 is a schematic view of the copper tube connection according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text. It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof. It is to be understood that in the description of the present invention, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are used only for convenience in describing the present invention and for simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like, are to be construed broadly, such as "connected," which may be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediary, or a communication between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention specifically. Further, in the present invention, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacted with the first and second features, or indirectly contacted with the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Fig. 1 shows an implementation form of the present invention, which includes a main body 1, which is provided with a common chamber 11, and a bottom end of the main body 1 is provided with a gas source access hole 13 (as shown in fig. 3) through the common chamber 11, and a top end of the main body 1 is provided with a plurality of pressure control holes 12 through the common chamber 11;
the main body 1 is also provided with a connecting part 2 for connecting a tail support rod 5; (as shown in FIG. 2)
A plurality of nozzles 3 fixedly connected to the main body 1, the plurality of nozzles 3 being respectively communicated with the middle portions of the plurality of pressure control holes 12;
and the plug mechanisms 4 are used for regulating the communication or blocking state of the spray pipe 3 and are in sealing connection with the pressure control holes 12.
The working principle is as follows: when the parking device is processed, the plurality of spray pipes 3 are fixedly connected to the main body 1, when a wind tunnel test is carried out, the main body 1 is connected to a specified position on the tail support rod 5 through the connecting portion 2, the air source is communicated with the general cavity 11 through the air source access hole 13, air output by the air source enters the general cavity 11 and is then distributed to the plurality of pressure control holes 12 through the general cavity 11, the spray pipes 3 are regulated and controlled through the plug mechanisms 4 to be communicated with or blocked by the pressure control holes 12, so that the air can be sprayed out of the specified spray pipes 3, the purpose of interference generation on a wind tunnel model is achieved through the jet flows of the plurality of spray pipes 3, the attitude control of the aircraft is achieved, the communication or blocking states of the plurality of spray pipes 3 are regulated and controlled through the plurality of plug mechanisms 4 respectively, and the jet flow combination state can be efficiently changed. In the technical scheme, the multiple spray pipes 3 are arranged in the same position in a centralized manner, the jet flow combination state is changed more efficiently on the premise of ensuring accurate positioning and stability, the operation in a small space is facilitated, the direct interference with a model is avoided, and the device has the advantages of large-motor regulation and control, high accuracy and convenience in debugging.
In the above solution, the manner of providing the connection part 2 as shown in fig. 7 is:
an arc-shaped groove 23 used for abutting against the peripheral wall of the tail support rod 5 is formed in the middle of one side of the main body 1;
the bottom end of the main body 1 is symmetrically connected with a plurality of arc-shaped lugs 21, the inner walls of the arc-shaped lugs 21 are used for abutting against the peripheral wall of the tail support rod 5, and the arc-shaped lugs 21 are detachably connected with the tail support rod 5 through bolts respectively;
the top of the main body 1 is also provided with a thin groove 22 for binding with the tail support rod 5 through iron wires.
The working principle is as follows: when the main body 1 is installed on the tail support rod 5, the main body 1 is pre-installed on the tail support rod 5 through the arc-shaped groove 23, the main body 1 is tightly abutted to the tail support rod 5 through the arc-shaped groove 23 so as to limit the left and right movable positions of the main body 1, and then the plurality of arc-shaped lug plates 21 are fixed on the tail support rod 5 through bolts respectively so as to limit the bottom end of the main body 1, so that the main body 1 is limited to move up and down and rotate, the main body 1 is fixed at the designated position on the tail support rod 5, and the main body 1 can move back and forth along the tail support rod 5 when being installed through the installation hole in the arc-shaped lug plates 21 so as to perform fine adjustment on the position; and bind the top of main part 1 and tail branch 5 along thin recess 22 through the iron wire, carry on spacingly to the top of main part 1 and make the tight 1 dense fixes of main part on tail straight-bar 5, have accurate location, convenient to detach or installation, guarantee the advantage of connection stability.
In the above scheme, as shown in fig. 4, the plug mechanism 4 includes:
the long plug assembly 41 is used for plugging the bottom of the pressure control hole 12 and is detachably connected with the pressure control hole 12;
and the short plug assembly 42 is used for plugging the top of the pressure control hole 12, is alternately used with the long plug assembly 41, and is detachably connected with the pressure control hole 12.
The working principle is as follows: the bottom of the pressure control hole 12 is blocked by the long plug assembly 41, so that after the gas of the gas source enters the universal chamber 11, the gas cannot be introduced into the corresponding spray pipe 3 through the pressure control hole 12, and the corresponding spray pipe 3 cannot generate jet flow; when the bottom of the pressure control hole 12 is plugged by the short plug assembly 42, the top of the pressure control hole 12 is plugged by the short plug assembly 42 to prevent gas from leaking through the flow pressure control hole 12, so that gas of a gas source enters the general cavity 11 and then is introduced into the corresponding spray pipe 3 through the pressure control hole 12, and the corresponding spray pipe 3 can generate jet flow; the ventilation or non-ventilation state of the plurality of spray pipes 3 is regulated and controlled by alternately using the long plug assembly 41 and the short plug assembly 42, so that the jet flow combination state of the plurality of spray pipes 3 is changed to meet different posture control requirements, and the device has the advantages of being convenient to regulate and control and improving the working efficiency.
In the above solution, as shown in fig. 5, the long plug assembly 41 includes:
a first screw 411, which is screwed with the pressure control hole 12, and a connection arm 412 is integrally formed and protruded at the end of the first screw 411, and the connection arm 412 is sleeved with the pressure control hole 12;
and a packing 413 fixedly attached to a distal end of the connection arm 412, and a peripheral wall of the packing 413 abuts against a hole wall of the pressure control hole 12.
The working principle is as follows: through first screw 411 and pressure control hole 12 threaded connection, so that quick connection or dismantlement, extend first screw 411 through connecting arm 412, thereby can deliver sealed the pad 413 to the bottom of pressure control hole 12, and through the active position of the sealed pad 413 of threaded connection restriction of first screw 411 and pressure control hole 12, make sealed pad 413 can seal off the bottom of pressure control hole 12, the gas in general chamber 11 can't get into spray tube 3 through pressure control hole 12, realize not spouting of spray tube 3, has the advantage of the guarantee stable connection, guarantee leakproofness, convenient to dismantle or connect.
In the above solution, as shown in fig. 6, the short plug assembly 42 includes:
a second screw 421 screwed with the pressure control hole 12;
and a sealing ring 422 sleeved with the second screw 421, wherein one end of the sealing ring 422 abuts against the main body 1, and the other end of the sealing ring 422 abuts against the head of the second screw 421.
The working principle is as follows: the sealing ring 422 is limited at the top end of the pressure control hole 12 through the second screw 421, and the sealing ring 422 seals the gap between the second screw 421 and the pressure control hole 12 to prevent gas leakage, so that the top of the pressure control hole 12 is sealed, gas of a gas source is sprayed out from the spray pipe 3 after passing through the pressure control hole 12 from the universal chamber 11, and the advantages of ensuring stable connection, ensuring sealing performance and being convenient to detach or connect are achieved.
In the above solution, one end of the air supply access pipe 6 is further welded to the main body 1 along the air supply access hole 13, and a welding groove 61 (shown in fig. 7 and 8) for welding the copper tube 7 is provided on an inner side of the other end of the air supply access pipe 6. Connect pipe 6 universal cavity 11 of being convenient for to be connected with the air supply through the air supply that sets up, when the lower main part 1 temperature of air supply atmospheric pressure intensity is lower, choose for use the hose to insert pipe 6 and air supply with the air supply and communicate, when the higher main part 1 temperature of air supply atmospheric pressure intensity is higher, with copper pipe 7 one end welding in welding groove 61, copper pipe 7's the other end and air supply intercommunication, through the clearance between welding groove 61 and the copper pipe 7 pile up the welding liquid, realize copper pipe 7 and the sealing connection that the air supply inserted the pipe, through the isolated main part 1's of copper pipe 7 temperature, the reinforcing suitability has, the favourable part of guarantee test effect.
Example 1:
a method for using a chamber-parking device for multiple spray pipes in a wind tunnel test comprises the following steps:
firstly, welding a plurality of spray pipes 3 on a main body 1 according to requirements, welding an air source access pipe 6 at an air source access hole 13, sleeving one end part of a red copper pipe 7 in a welding groove 61, welding along a gap between the red copper pipe 7 and the welding groove 61, and fully filling the gap with welding liquid generated by welding.
Step two, according to the use requirement of the spray pipe 3, connecting the plurality of pressure control holes 12 with the long plug assembly 41 or the short plug assembly 42 respectively to form a room standing device;
step three, pre-mounting the single room parking device on the tail support rod 5 through the arc-shaped groove 23;
adjusting the position of the room holding device on the tail support rod 5 according to the position of the model, and respectively locking a plurality of arc-shaped lugs 21 on the tail support rod 5 through screws;
and step five, binding and fixing the main body 1 and the tail support rod 5 through iron wires, wherein the iron wires are positioned in the thin groove 22.
Example 2:
a method for using a chamber-parking device for multiple spray pipes in a wind tunnel test comprises the following steps:
firstly, welding a plurality of spray pipes 3 on a main body 1 according to requirements, welding an air source access pipe 5 at an air source access hole 13, and communicating an air source access pipe 6 with an air source through a hose;
secondly, connecting the pressure control holes 12 with the long plug assembly 41 or the short plug assembly 42 respectively according to the use requirement of the spray pipe 3 to form a room standing device;
step three, pre-installing two room standing devices on the tail support rod 5 through the arc-shaped grooves 23 respectively, setting the main bodies 1 of the two room standing devices to be matched with each other, and pre-installing the two room standing devices on the tail support rod 5 symmetrically;
adjusting the front and rear positions of the room holding device on the tail support rod 5 according to the model position, and respectively locking a plurality of arc lugs 21 on the tail support rod 5 through screws;
and step five, binding and fixing the main body 1 and the tail support rod 5 through iron wires, wherein the iron wires are positioned in the thin groove 22.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a room device that resides that is used for many spray tubes in wind tunnel test, includes the main part, and it is provided with general cavity, just the bottom of main part link up general cavity is provided with the air supply and inserts the hole, the top of main part link up general cavity still is provided with a plurality of pressure control holes, its characterized in that:
the main body is also provided with a connecting part for connecting the tail support rod;
the plurality of spray pipes are fixedly connected to the main body, and the plurality of spray pipes are respectively communicated with the middles of the plurality of pressure control holes;
and the plug mechanisms are used for regulating the communication or plugging state of the spray pipes and are in sealing connection with the pressure control holes.
2. The chamber-parking device for the multiple nozzles in the wind tunnel test according to claim 1, wherein the connecting part is arranged in a manner that:
an arc-shaped groove used for abutting against the peripheral wall of the tail support rod is arranged in the middle of one side of the main body;
the bottom end of the main body is symmetrically connected with a plurality of arc-shaped lugs, the inner walls of the arc-shaped lugs are used for abutting against the peripheral wall of the tail support rod, and the arc-shaped lugs are detachably connected with the tail support rod through bolts respectively;
the top of main part has still seted up the thin recess that is used for binding through iron wire and tail branch.
3. The chamber-parking device for the multiple nozzles in the wind tunnel test according to claim 1, wherein the plug mechanism comprises:
the long plug assembly is used for plugging the bottom of the pressure control hole and is detachably connected with the pressure control hole;
and the short plug assembly is used for plugging the top of the pressure control hole and is alternately used with the long plug assembly, and the short plug assembly is detachably connected with the pressure control hole.
4. The chamber-parking device for the multiple nozzles in the wind tunnel test according to claim 3, wherein the long choke plug assembly comprises:
the first screw is in threaded connection with the pressure control hole, the tail end of the first screw is integrally formed and convexly provided with a connecting arm, and the connecting arm is sleeved and connected with the pressure control hole;
and the sealing gasket is fixedly connected to the tail end of the connecting arm, and the peripheral wall of the sealing gasket is abutted against the hole wall of the pressure control hole.
5. The chamber-parking device for the multiple nozzles in the wind tunnel test according to claim 3, wherein the choke plug assembly comprises:
a second screw threadedly coupled to the pressure control hole;
and the sealing ring is sleeved with the second screw, one end of the sealing ring is abutted against the main body, and the other end of the sealing ring is abutted against the head of the second screw.
6. The parking device for the multiple spray pipes in the wind tunnel test according to claim 1, wherein one end of the air source access pipe is further welded to the main body along the air source access hole, and a welding groove for welding a copper pipe is formed in the inner side of the other end of the air source access pipe.
7. The use method of the room-parking device for the multiple spray pipes in the wind tunnel test according to any one of claims 1 to 6 is characterized by comprising the following steps of:
firstly, welding a plurality of spray pipes on a main body according to requirements, welding an air source access pipe at an air source access hole, and connecting a hose or welding a copper pipe through the air source access pipe according to requirements;
secondly, connecting the pressure control holes with the long plug assembly or the short plug assembly respectively according to the use requirement of the spray pipe to form a room standing device;
step three, pre-installing one or two room-parking devices on the tail support rod through an arc-shaped groove according to requirements, setting main bodies of the two room-parking devices to be large and small according to the requirement, wherein the specifications of the main bodies are the same or are matched with each other, and the two room-parking devices are symmetrically pre-installed on the tail support rod;
adjusting the front and rear positions of the room holding device on the tail support rod according to the model position, and respectively locking a plurality of arc lugs on the tail support rod through screws;
and step five, binding and fixing the main body and the tail support rod through iron wires, wherein the iron wires are positioned in the thin grooves.
8. The use method of the chamber parking device for the multiple spray pipes in the wind tunnel test according to claim 7, wherein the method for welding the copper pipe by the air source access pipe comprises the following steps:
sleeving one end part of the red copper pipe in a welding groove, welding along a gap between the red copper pipe and the welding groove, and fully filling the gap with welding liquid generated by welding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310028992.8A CN115717981B (en) | 2023-01-09 | 2023-01-09 | Resident chamber device for multiple spray pipes in wind tunnel test and use method |
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| CN202310028992.8A CN115717981B (en) | 2023-01-09 | 2023-01-09 | Resident chamber device for multiple spray pipes in wind tunnel test and use method |
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