CN112758337A - Aerial refueling device with gas drive becomes rigidity hose - Google Patents
Aerial refueling device with gas drive becomes rigidity hose Download PDFInfo
- Publication number
- CN112758337A CN112758337A CN202110098563.9A CN202110098563A CN112758337A CN 112758337 A CN112758337 A CN 112758337A CN 202110098563 A CN202110098563 A CN 202110098563A CN 112758337 A CN112758337 A CN 112758337A
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- Prior art keywords
- hose
- layer
- rigidity
- variable
- winch
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- 229920001971 elastomer Polymers 0.000 claims description 31
- 239000000806 elastomer Substances 0.000 claims description 19
- 239000012212 insulator Substances 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 230000008094 contradictory effect Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D39/00—Refuelling during flight
- B64D39/02—Means for paying-in or out hose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D39/00—Refuelling during flight
- B64D39/04—Adaptations of hose construction
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
An aerial refueling device with a gas-driven variable-rigidity hose relates to the technical field of aerial refueling. The invention solves the problem that the existing soft air refueling hose is very easy to be disturbed by air flow in the butt joint process to cause butt joint failure due to the flexibility of the hose, and the hose is required to have flexibility in the hose folding and unfolding stage. The problem of contradiction between the hose performance requirements in the retraction and extension stages and the butt joint stage is caused. The variable-rigidity hose is wound on the winch before being discharged, the head end of the variable-rigidity hose enters the winch through the guide hole and is bent and then is connected with the rotary joint through the shaft hole of the support frame, a plurality of annular tooth grooves are uniformly formed in the outer surface of the inner tooth layer of the variable-rigidity hose from front to back in sequence along the length direction, and a plurality of meshing tooth groups are arranged between the inflatable layer and the inner tooth layer and are in one-to-one correspondence with the annular tooth grooves on the inner tooth layer. According to the invention, the time domain variable stiffness of the refueling hose is realized by controlling the meshing degree of the inner tooth layer and the meshing teeth through the inflation and deflation control of the inflation layer.
Description
Technical Field
The invention relates to the technical field of aerial refueling, in particular to an aerial refueling device with a gas-driven variable-rigidity hose.
Background
The air refueling technology is a technology for refueling one aircraft or a plurality of aircraft in the air to enlarge the range and prolong the endurance time. The air refueling technology greatly improves the range of the airplane, prolongs the air leaving time of the airplane, improves the effective load of the airplane, solves the contradiction between the oil carrying capacity and the takeoff distance, and gradually becomes an important means for effectively expanding the air force combat range and the combat capability of the modern air force. The flexible air refueling hose is convenient to retract and release, small in size and simple in structure, but the flexible hose is extremely easy to be disturbed by air flow in the butt joint process to cause butt joint failure. The soft air refueling hose is very easy to be disturbed by air flow in the butt joint process to cause butt joint failure due to the flexibility of the soft air refueling hose, and the hose is required to have flexibility in the hose folding and unfolding stage. The performance requirements of the hose in the retraction and extension stages are contradictory to the performance requirements of the hose in the docking and extension stages. In order to improve the stability of the hose in the butt joint process, reduce the influence of disturbance and improve the success rate of butt joint, the invention provides the refueling hose which is flexible and convenient to retract and release in the retracting and releasing process, and has higher rigidity and strong stability in the butt joint process.
In summary, the conventional flexible air refueling hose is very susceptible to airflow disturbance in the docking process to cause docking failure due to its flexibility, and the hose is required to have flexibility in the hose retracting and releasing stage. The problem of contradiction between the hose performance requirements in the retraction and extension stages and the butt joint stage is caused.
Disclosure of Invention
The invention aims to solve the problem that the existing soft air refueling hose is very easy to be disturbed by air flow in the butt joint process to cause butt joint failure due to the flexibility of the hose, and the hose is required to have flexibility in the hose folding and unfolding stage. The problem that the performance requirements of the hose are contradictory in the retracting stage and the butting stage is caused, and therefore the air refueling device with the gas-driven variable-rigidity hose is provided.
The technical scheme of the invention is as follows:
an aerial refueling device with a gas-driven variable-rigidity hose comprises a variable-rigidity hose 1, a winch 2, support frames 3, a rotary joint 4, a valve 5, an oil conveying pipe 6, a gas guide pipe 7, an air pump 8, a power line 9 and an umbrella cone 10, wherein the winch 2 is of a cylindrical structure, a guide hole is formed in the outer cylindrical surface of the winch 2, the winch 2 is vertically arranged, the two support frames 3 are vertically and oppositely arranged at the left end and the right end of the winch 2 and are integrally connected with the winch 2, a shaft hole is formed in the center of each support frame 3, one end of the rotary joint 4 is rotatably arranged in the shaft hole of the support frame 3 on one side, the variable-rigidity hose 1 is wound on the winch 2 before being discharged, the head end of the variable-rigidity hose 1 enters the winch 2 through the guide hole, and the variable-rigidity hose 1 is positioned in the winch 2 and is connected, the other end of the rotary joint 4 is connected with a valve 5, the valve 5 is connected with an oil pipeline 6, the tail part of the variable stiffness hose 1 is connected with an umbrella cone 10, the variable stiffness hose 1 comprises an inner insulator layer 11, an inner tooth layer 12, an inflation layer 13, an outer elastomer layer 15 and a plurality of meshing tooth groups, the inner insulator layer 11, the inner tooth layer 12, the inflation layer 13 and the outer elastomer layer 15 are all of a circular tubular structure, the inner tooth layer 12, the inflation layer 13 and the outer elastomer layer 15 are sequentially sleeved outside the inner insulator layer 11 from inside to outside, a plurality of annular tooth grooves are sequentially and uniformly formed in the outer surface of the inner tooth layer 12 from front to back along the length direction, the plurality of meshing tooth groups are all arranged between the inflation layer 13 and the inner tooth layer 12 and are arranged in one-to-one correspondence with the plurality of annular tooth grooves on the inner tooth layer 12, a sealing cavity is arranged inside the inflation layer 13, one end of the variable stiffness hose 1, one end of the variable stiffness hose 2 is connected with a gas, the air pump 8 is arranged on the outer end face of the support frame 3 close to one side of the rotary joint 4, the other end of the air guide pipe 7 is connected with the air pump 8, and the external power supply is connected with the air pump 8 through a power line 9.
Furthermore, each meshing tooth group comprises three meshing teeth 16, the three meshing teeth 16 are arranged at the inner side of the inflatable layer 13 in an angle of 120 degrees, the meshing teeth 16 are of arc-shaped sheet structures, and the meshing teeth 16 are matched with annular tooth grooves on the outer surface of the inner tooth layer 12.
Further, become rigidity hose 1 still includes the steel wire layer, and the steel wire layer sets up between inflatable layer 13 and outer elastomer layer 15, and the steel wire layer includes a plurality of steel wire 14, and steel wire 14 wraps up in inflatable layer 13 outsidely along become rigidity hose 1 length direction.
Further, the inner insulator layer 11 is made of a rubber layer, and the inner insulator layer 11 is made of a rubber material.
Further, the outer elastomer layer 15 is made of a rubber material.
Further, the supporting frame 3 includes a central ring, an outer ring and four rib plates, the outer ring is coaxially sleeved outside the central ring, the four rib plates are arranged between the central ring and the outer ring in an annular array manner, one end of each rib plate is connected with the outer side surface of the central ring, the other end of each rib plate is fixedly connected with the inner side surface of the outer ring, and an inner hole of the central ring is a shaft hole matched with the rotary joint 4.
Further, the inner diameter of the outer ring is equal to the inner diameter of the capstan 2, the outer diameter of the capstan 2 is smaller than the outer diameter of the outer ring, and the outer ring is connected with the capstan 2 in a welding mode.
Compared with the prior art, the invention has the following effects:
1. the external power supply of the air refueling device with the gas-driven variable-rigidity hose drives the air pump 8 to inflate and deflate the inflating layer 13 in the variable-rigidity hose 1 through the power line 9, the time-domain variable rigidity of the variable-rigidity hose 1 is realized by controlling the meshing degree of the inner tooth layer 12 and the meshing teeth 16 through inflating and deflating the inflating layer 13, so that the variable-rigidity hose 1 has lower rigidity in the retracting stage and is convenient to retract and release, the rigidity in the butt joint stage is higher to reduce external disturbance, and the stability and the safety of the variable-rigidity hose 1 can be improved. When the air pressure in the inflatable layer 13 is low, the distance between the meshing teeth 16 and the inner tooth layer 12 is long, the meshing degree between the meshing teeth 16 and the inner tooth layer 12 is low, the rigidity is low, and the variable-rigidity hose 1 is flexible as a whole and is convenient to be coiled on the winch 2; when the air pump 8 works, the air pressure in the inflatable layer 13 is higher, the distance between the meshing teeth 16 and the inner tooth layer 12 is shortened, the meshing degree of the meshing teeth 16 and the inner tooth layer 12 is improved, the rigidity is higher, and the stability of the variable-rigidity hose 1 is enhanced.
2. Three rows of meshing teeth 16 of the aerial refueling device with the gas-driven variable-rigidity hose are arranged at intervals of 120 degrees, so that a uniform bending resistance effect can be obtained in all directions, and interference among the rows of meshing teeth 16 can be avoided.
3. The steel wire 14 is arranged between the outer elastomer layer 15 and the inflatable layer 13 of the variable-rigidity hose 1 of the air refueling device with the gas-driven variable-rigidity hose, the variable-rigidity hose 1 keeps higher reliability while realizing rigidity change, has certain bending rigidity and higher tensile strength, and can reduce the elongation of the variable-rigidity hose 1 under aerodynamic force.
4. The outer elastomer layer 15 of the outer layer of the variable-stiffness hose 1 of the air refueling device with the gas-driven variable-stiffness hose adopts a rubber layer, has good elasticity, can keep properties under large tensile force, and maintains the appearance of the gas-driven variable-stiffness hose 1.
5. The inner insulator layer 11 of the inner layer of the variable-rigidity hose 1 of the air refueling device with the gas-driven variable-rigidity hose adopts a rubber layer, and has a good insulation effect.
6. The rotary joint 4 of the aerial refueling device with the gas-driven variable-rigidity hose is rotatably connected with the support frame 3 through the shaft hole of the central ring, the variable-rigidity hose 1 is led out through the support frame 3 fixed on one side of the winch 2 through the guide hole, the four rib plates are arranged at intervals of 90 degrees and are firmer, and the torsion of the variable-rigidity hose 1 can be reduced when the winch 2 rotates.
7. The rotary joint 4 of the aerial refueling device with the gas-driven variable-rigidity hose is rotatably connected with the support frame 3 through the shaft hole of the central ring, the variable-rigidity hose 1 is led out through the support frame 3 fixed on one side of the winch 2 through the guide hole, the four rib plates are arranged at intervals of 90 degrees and are firmer, and the torsion of the variable-rigidity hose 1 can be reduced when the winch 2 rotates.
Drawings
FIG. 1 is an isometric view of the aerial refueling unit of the present invention with a gas-powered variable stiffness hose;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the variable stiffness hose 1 of the present invention;
fig. 4 is a schematic longitudinal sectional view of the variable stiffness hose 1 of the present invention.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 4, and the aerial refueling device with the gas-driven variable-stiffness hose of the present embodiment includes a variable-stiffness hose 1, a winch 2, two support frames 3, a rotary joint 4, a valve 5, an oil pipe 6, a gas conduit 7, an air pump 8, a power line 9 and an umbrella cone 10, wherein the winch 2 is of a cylindrical structure, an outer cylindrical surface of the winch 2 is provided with a guide hole, the winch 2 is vertically arranged, the two support frames 3 are vertically arranged at the left and right ends of the winch 2 and integrally connected with the winch 2, a shaft hole is formed in the center of each support frame 3, one end of the rotary joint 4 is rotatably installed in the shaft hole of the support frame 3 on one side, the variable-stiffness hose 1 is wound on the winch 2 before being discharged, the head end of the variable-stiffness hose 1 enters the winch 2 through the guide hole, the variable-stiffness hose 1 is located inside the winch 2, and one end of the, the other end of the rotary joint 4 is connected with a valve 5, the valve 5 is connected with an oil pipeline 6, the tail part of the variable stiffness hose 1 is connected with an umbrella cone 10, the variable stiffness hose 1 comprises an inner insulator layer 11, an inner tooth layer 12, an inflation layer 13, an outer elastomer layer 15 and a plurality of meshing tooth groups, the inner insulator layer 11, the inner tooth layer 12, the inflation layer 13 and the outer elastomer layer 15 are all of a circular tubular structure, the inner tooth layer 12, the inflation layer 13 and the outer elastomer layer 15 are sequentially sleeved outside the inner insulator layer 11 from inside to outside, a plurality of annular tooth grooves are sequentially and uniformly formed in the outer surface of the inner tooth layer 12 from front to back along the length direction, the plurality of meshing tooth groups are all arranged between the inflation layer 13 and the inner tooth layer 12 and are arranged in one-to-one correspondence with the plurality of annular tooth grooves on the inner tooth layer 12, a sealing cavity is arranged inside the inflation layer 13, one end of the variable stiffness hose 1, one end of the variable stiffness hose 2 is connected with a gas, the air pump 8 is arranged on the outer end face of the support frame 3 close to one side of the rotary joint 4, the other end of the air guide pipe 7 is connected with the air pump 8, and the external power supply is connected with the air pump 8 through a power line 9.
The inflatable layer 13 of this embodiment is the flexible inflatable layer, the flexible inflatable layer is made by silica gel, and inflatable layer 13 is connected with air pump 8, fills the gassing to inflatable layer 13 by air pump 8, and the position of meshing tooth 16 inwards moves and the interlock degree of interior tooth layer 12 increases after inflatable layer 13 has risen for the rigidity of variable rigidity hose 1 increases, can realize the rigidity control to variable rigidity hose 1 through the atmospheric pressure of control in the inflatable layer 13.
The aerial refueling device with the gas-driven variable-rigidity hose is connected with the oil conveying pipe 6 through the valve 5, the valve 5 is closed in the butt joint stage, fuel oil is not contained in the aerial refueling device with the gas-driven variable-rigidity hose, and after the butt joint is finished, the valve 5 is opened to fill the fuel oil, so that the aerial refueling device has high safety.
The second embodiment is as follows: the embodiment is described with reference to fig. 3 and 4, each meshing tooth group of the embodiment comprises three meshing teeth 16, three meshing teeth 16 are arranged at 120 degrees inside the inflatable layer 13, the meshing teeth 16 are of arc-shaped sheet structures, and the meshing teeth 16 are matched with annular tooth grooves on the outer surface of the inner tooth layer 12. With the arrangement, three rows of the meshing teeth 16 are arranged at intervals of 120 degrees, so that a relatively uniform bending resistance effect can be obtained in all directions, and interference among the rows of the meshing teeth 16 can be avoided. Other components and connections are the same as in the first embodiment.
The third concrete implementation mode: the variable stiffness hose 1 of the present embodiment is further described with reference to fig. 3 and 4, and the steel wire layer is disposed between the inflatable layer 13 and the outer elastomer layer 15, and includes a plurality of steel wires 14, and the steel wires 14 are wrapped outside the inflatable layer 13 along the length direction of the variable stiffness hose 1. With the arrangement, the steel wire 14 is arranged between the outer elastomer layer 15 and the inflatable layer 13 of the variable-stiffness hose 1, the variable-stiffness hose 1 keeps high reliability while realizing stiffness change, has certain bending stiffness and high tensile strength, and can reduce the elongation of the variable-stiffness hose 1 under aerodynamic force. Other compositions and connections are the same as in the first or second embodiments.
The fourth concrete implementation mode: in the present embodiment, the inner insulator layer 11 of the present embodiment is made of a rubber layer, and the inner insulator layer 11 is made of a rubber material, as described with reference to fig. 3 and 4. So set up, the inner insulator layer 11 of the variable rigidity hose 1 inlayer adopts the rubber layer, has better insulating effect. Other compositions and connection relationships are the same as in the first, second or third embodiment.
The fifth concrete implementation mode: the present embodiment will be described with reference to fig. 3 and 4, and the outer elastomer layer 15 of the present embodiment is made of a rubber material. With the arrangement, the outer elastomer layer 15 of the outer layer of the variable stiffness hose 1 is a rubber layer, so that the variable stiffness hose has good elasticity, can maintain the properties under large tensile force, and maintains the appearance of the gas-driven variable stiffness hose 1. Other compositions and connection relationships are the same as those in the first, second, third or fourth embodiment.
The sixth specific implementation mode: referring to fig. 1 and 2 to describe the present embodiment, the supporting frame 3 of the present embodiment includes a central ring, an outer ring, and four rib plates, the outer ring is coaxially sleeved outside the central ring, the four rib plates are arranged between the central ring and the outer ring in an annular array, one end of each rib plate is connected to an outer side surface of the central ring, the other end of each rib plate is fixedly connected to an inner side surface of the outer ring, and an inner hole of the central ring is a shaft hole matched with the rotary joint 4. With the arrangement, the rotary joint 4 is rotatably connected with the support frame 3 through the shaft hole of the central ring, the rigidity-variable hose 1 is led out through the guide hole through the support frame 3 fixed on one side of the winch 2, the four rib plates are arranged at intervals of 90 degrees and are firm, and the torsion of the rigidity-variable hose 1 can be reduced when the winch 2 rotates. Other compositions and connection relationships are the same as in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: referring to fig. 1 and 2, the embodiment is described, in which the inner diameter of the outer ring is equal to the inner diameter of the capstan 2, the outer diameter of the capstan 2 is smaller than the outer diameter of the outer ring, and the outer ring is connected to the capstan 2 by welding. Other compositions and connection relationships are the same as in the first, second, third, fourth, fifth or sixth embodiment.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Principle of operation
The working principle of the aerial refueling device with the gas-driven variable-rigidity hose of the invention is described with reference to fig. 1 to 4: in the retraction and extension stage, the valve 5 and the air pump 8 are both closed, the winch 2 rolls to slowly discharge the variable-rigidity hose 1, at the moment, the air pressure of the inflatable layer 13 is low, and the variable-rigidity hose 1 is low and flexible. After the variable-rigidity hose 1 is discharged to a certain length, the valve 5 is still closed, the air pump 8 is opened, the air pressure in the inflatable layer 13 is increased, the flexible inflatable layer 13 is bulged, the three rows of meshing teeth 16 move inwards, the meshing degree of the meshing teeth 16 and the inner tooth layer 12 is improved, the rigidity of the variable-rigidity hose 1 is improved, and the stability of the variable-rigidity hose 1 is improved. After the oil receiving machine is successfully butted, the air pump 8 is closed, the valve 5 is opened, the variable-rigidity hose 1 recovers flexibility, and fuel oil is filled into the oil receiving machine through the variable-rigidity hose 1. After fuel filling is finished, the valve 5 is closed, the air pump 8 is closed, and the variable-rigidity hose 1 is slowly recovered after the winch 2 rolls.
Claims (7)
1. The utility model provides an aerial filling device with gaseous drive becomes rigidity hose which characterized in that: it is including becoming rigidity hose (1), capstan winch (2), support frame (3), rotary joint (4), valve (5), defeated oil pipe (6), gas conduit (7), air pump (8), power cord (9) and umbrella awl (10), capstan winch (2) are cylindric structure, the guide hole is seted up to the outer face of cylinder of capstan winch (2), capstan winch (2) vertical setting, the quantity of support frame (3) is two, two support frame (3) vertical relative settings are in the left and right sides both ends of capstan winch (2) and are connected with capstan winch (2) integral type, the shaft hole is all seted up at the center of every support frame (3), rotary joint (4) one end is rotated and is installed in the shaft hole of one side support frame (3), become rigidity hose (1) and twine on capstan winch (2) before giving out, become inside rigidity hose (1) head end through the guide hole entering capstan winch (2), become rigidity hose (1) and pass through the shaft hole and rotary joint (3) after being in capstan winch (2) inside one (4) The connection, the other end of the rotary joint (4) is connected with the valve (5), the valve (5) is connected with the oil delivery pipe (6), the tail part of the variable stiffness hose (1) is connected with the umbrella cone (10), the variable stiffness hose (1) comprises an inner insulator layer (11), an inner tooth layer (12), an inflation layer (13), an outer elastomer layer (15) and a plurality of meshing tooth groups, the inner insulator layer (11), the inner tooth layer (12), the inflation layer (13) and the outer elastomer layer (15) are all of a circular tubular structure, the inner tooth layer (12), the inflation layer (13) and the outer elastomer layer (15) are sequentially sleeved outside the inner insulator layer (11) from inside to outside, the outer surface of the inner tooth layer (12) is sequentially and uniformly provided with a plurality of annular tooth grooves from front to back along the length direction, the plurality of meshing tooth groups are all arranged between the inflation layer (13) and the inner tooth layer (12) and are in one-to-one correspondence with the annular tooth grooves on the inner tooth layer, the inner part of the inflation layer (13) is provided with a sealing cavity, the variable-rigidity hose (1) is positioned at one end of the winch (2) and connected with the gas guide pipe (7), one end of the gas guide pipe (7) is communicated with the sealing cavity of the inflation layer (13) of the variable-rigidity hose (1), the air pump (8) is installed on the outer end face of the support frame (3) close to one side of the rotary joint (4), the other end of the gas guide pipe (7) is connected with the air pump (8), and the external power supply is connected with the air pump (8) through a power line (9).
2. An aerial refueling unit with a gas-driven variable stiffness hose as claimed in claim 1, wherein: each meshing tooth group comprises three meshing teeth (16), the inner side of the inflatable layer (13) is provided with three meshing teeth (16) at an angle of 120 degrees, the meshing teeth (16) are of arc-shaped sheet structures, and the meshing teeth (16) are matched with annular tooth grooves on the outer surface of the inner tooth layer (12).
3. An aerial refueling unit with a gas-driven variable stiffness hose as claimed in claim 1 or 2, wherein: become rigidity hose (1) and still include the steel wire layer, and the steel wire layer sets up between inflatable layer (13) and outer elastomer layer (15), and the steel wire layer includes a plurality of steel wire (14), and steel wire (14) are along becoming rigidity hose (1) length direction parcel outside inflatable layer (13).
4. An aerial refueling unit with a gas-driven variable stiffness hose as claimed in claim 3, wherein: the inner insulator layer (11) is made of a rubber material.
5. An aerial refueling unit with a gas-driven variable stiffness hose as claimed in claim 4, wherein: the outer elastomer layer (15) is made of a rubber material.
6. An aerial refueling unit with a gas-driven variable stiffness hose as claimed in claim 5, wherein: the supporting frame (3) comprises a central ring, an outer ring and four rib plates, the outer ring is coaxially sleeved outside the central ring, the four rib plates are arranged between the central ring and the outer ring in an annular array mode, one end of each rib plate is connected with the outer side face of the central ring, the other end of each rib plate is fixedly connected with the inner side face of the outer ring, and an inner hole of the central ring is a shaft hole matched with the rotary joint (4).
7. An aerial refueling unit with a gas-driven variable stiffness hose as claimed in claim 6, wherein: the inner diameter of the outer ring is equal to that of the winch (2), the outer diameter of the winch (2) is smaller than that of the outer ring, and the outer ring is connected with the winch (2) in a welding mode.
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| CN202110098563.9A CN112758337B (en) | 2021-01-25 | 2021-01-25 | Aerial refueling device with gas drive becomes rigidity hose |
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| CN202110098563.9A CN112758337B (en) | 2021-01-25 | 2021-01-25 | Aerial refueling device with gas drive becomes rigidity hose |
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