CN113236777B - Mechanical connecting device - Google Patents
Mechanical connecting device Download PDFInfo
- Publication number
- CN113236777B CN113236777B CN202110319494.XA CN202110319494A CN113236777B CN 113236777 B CN113236777 B CN 113236777B CN 202110319494 A CN202110319494 A CN 202110319494A CN 113236777 B CN113236777 B CN 113236777B
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- China
- Prior art keywords
- support body
- filling support
- warhead
- wedge
- sealing ring
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- 238000007789 sealing Methods 0.000 claims abstract description 156
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 126
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 124
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 124
- 230000007797 corrosion Effects 0.000 claims abstract description 13
- 238000005260 corrosion Methods 0.000 claims abstract description 13
- 239000007791 liquid phase Substances 0.000 claims description 45
- 239000000446 fuel Substances 0.000 claims description 19
- 239000002360 explosive Substances 0.000 claims description 17
- 230000003746 surface roughness Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000037237 body shape Effects 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 18
- 230000033001 locomotion Effects 0.000 description 13
- 238000005452 bending Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
- F42B12/46—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/24—Cartridge closures or seals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/50—Flanged connections
- F16B2200/506—Flanged connections bolted or riveted
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a mechanical connecting device.A third wedge body of a filling support body is placed between a first outer flange of a warhead shell and a first upper end cover of the warhead shell, the filling support body fills a gap between the first upper end cover and the first outer flange, the upper end surface of the third wedge body of the filling support body is contacted with the bottom surface of a first rectangular groove of the warhead shell, and the right side surface of the third wedge body of the filling support body is contacted with the bottom surface of a first oblique V-shaped groove of the warhead shell; the filling support body is used as a component for transferring force in the middle, namely, the filling support body can transfer pressure and tensile force, and protects the polytetrafluoroethylene sealing ring, so that the polytetrafluoroethylene sealing ring is not compressed or separated additionally. The polytetrafluoroethylene sealing ring can perform sealing and corrosion resisting functions in a complete way, and the reliability of the warhead is ensured.
Description
Technical Field
The invention belongs to the technical field of mechanical connecting devices, and relates to a mechanical connecting device.
Background
The liquid-phase charging warhead is internally filled with high-energy fuel, the high-energy fuel is scattered into the air to be mixed with the air to form a large-range active cloud cluster under the action of explosive explosion and throwing driving, and the active cloud cluster is detonated for the second time by the explosive to generate body detonation and release strong shock waves, so that the liquid-phase charging warhead is one of the most powerful non-nuclear weapons. The high-energy fuel contains liquid-phase materials, so that the liquid-phase charging warhead needs to meet the sealing requirement.
The high-energy liquid phase fuel has strong corrosivity, and various rubber materials are subjected to chemical reaction with the high-energy liquid phase fuel to lose effectiveness. Zhang Dongna et al report the effect of stretching treatment on polytetrafluoroethylene properties in the literature "journal of aeronautical materials, 12 months 2013, volume 33, page 57, 6): the polytetrafluoroethylene is a high polymer material with excellent comprehensive performance, and does not react with high-energy liquid-phase fuel. The sealing ring made of polytetrafluoroethylene not only can realize sealing, but also can meet the compatibility with high-energy liquid phase fuel.
Polytetrafluoroethylene is poorly compressible, with a polytetrafluoroethylene modulus of elasticity of 280MPa and a polytetrafluoroethylene strength of 15MPa, i.e., the polytetrafluoroethylene material will fail when deformed by more than 5.3% of its thickness. For a liquid-phase charging warhead with the diameter of 210-220 mm and the length of 630-700 mm, the weight of the liquid-phase charging warhead is 30-40 kg, the internal stress of the liquid-phase charging warhead is not more than 0.2MPa, the axial thickness of a polytetrafluoroethylene sealing ring is 2-3 mm, the radial thickness of the polytetrafluoroethylene sealing ring is 3mm, and the axial cross section of the polytetrafluoroethylene sealing ring is rectangular. When the compression amount of the polytetrafluoroethylene sealing ring is not more than 5.3% of the total thickness, the compression amount of the polytetrafluoroethylene sealing ring is not more than 0.16mm, and the dimensional tolerance of a sealing groove for placing the polytetrafluoroethylene sealing ring is considered to be 0.2mm, so that the polytetrafluoroethylene sealing ring cannot be designed to be just pressed into the sealing ring. If the depth of the sealing groove is the lower limit, the depth of the sealing groove already exceeds the thickness of the sealing ring, and the sealing ring is not compressed in the sealing groove and cannot achieve the sealing effect; if the depth of the sealing groove is the upper limit, the depth of the sealing groove is very shallow, even if the sealing ring is compressed by 0.16mm, the sealing ring cannot be completely pressed into the sealing groove, the sealing ring protrudes out of the sealing groove, and the sealing ring tends to jack up mechanical parts. For reliable sealing, the ptfe seal ring is therefore designed to protrude out of the sealing groove, i.e. the ptfe seal ring is compressed to its maximum extent and the mechanical component is still lifted.
Because the polytetrafluoroethylene sealing ring jacks up mechanical parts, when the liquid-phase charging warhead is subjected to axial force, moment and torque, the polytetrafluoroethylene sealing ring is used as an intermediate part and needs to participate in force transmission. Specifically, when the liquid-phase charging warhead turns over, the edge of the warhead is taken as a force application point, the moment generated by gravity is about 100Nm, and the force generated by the moment on the polytetrafluoroethylene sealing ring is as follows: the compression force of one end is increased by about 500N, the pressure intensity of about 15MPa is increased, the compression force of the other end is reduced by about 500N, the pressure intensity of about 15MPa is reduced, the polytetrafluoroethylene sealing ring is damaged and loses the sealing property because the strength of the polytetrafluoroethylene sealing ring is exceeded at the end with the increased pressure intensity, the compression force of the compressed polytetrafluoroethylene sealing ring is reduced to 0 at the end with the reduced pressure intensity, and the polytetrafluoroethylene sealing ring is not compressed, does not play a sealing role, and still loses the sealing property. When the force applied to the warhead part does not pass through the axis of the warhead part, the warhead part is subjected to torsional torque, and the polytetrafluoroethylene sealing ring is used as an intermediate part and is subjected to sliding damage when shearing, so that the sealing effect is lost. The failure of the seal ring will cause the warhead to leak, which in turn causes the warhead to fail.
Disclosure of Invention
In order to overcome the defects and defects of the prior art, the filling support body is used as a part for transferring force in the middle, namely, the filling support body can transfer pressure and tension, the polytetrafluoroethylene sealing ring is protected, and the polytetrafluoroethylene sealing ring is not compressed additionally or separated from the polytetrafluoroethylene sealing ring. The polytetrafluoroethylene sealing ring can perform sealing and corrosion resisting functions in a good way, and the reliability of the warhead is ensured.
The invention provides a mechanical connecting device, which comprises a polytetrafluoroethylene sealing ring 2 and is characterized by also comprising a warhead shell 1, a filling support body 3 and an anti-skid gasket 4;
the shape of the warhead shell 1 is a first barrel, the first barrel of the warhead shell 1 is a revolving body, the opening of the warhead shell 1 is upward, the upper end of the first barrel of the warhead shell 1 is provided with a first outer flange, the upper end surface of the first outer flange of the warhead shell 1 is provided with a first annular groove, the outermost edge of the upper end of the first outer flange of the warhead shell 1 is provided with a first oblique V-shaped groove which is uniformly distributed in the circumferential direction, the bottom surface of the first oblique V-shaped groove of the warhead shell 1 is an oblique plane, the intersection point of the bottom surface of the first oblique V-shaped groove of the warhead shell 1 and the axis of the revolving body of the first barrel is positioned at the upper end of the center of the upper end surface of the first outer flange, the two side surfaces of the first oblique V-shaped groove of the warhead shell 1 and the bottom surface of the first oblique V-shaped groove form the same acute angle, the upper end of the first outer flange of the warhead shell 1 is connected with a first upper end cover through a first screw, the first upper end cover is a circular plate, and the outermost side of the first rectangular groove of the lower end of the first upper end cover is uniformly distributed in the circumferential direction;
the axis of the revolving body of the warhead shell 1 is vertical to the ground, the warhead shell 1 is a shell of a liquid-phase explosive-filled warhead, high-energy fuel is filled in the warhead shell 1, the high-energy fuel has strong corrosivity, polytetrafluoroethylene materials and the high-energy fuel do not react chemically, the diameter of the liquid-phase explosive-filled warhead is 210-220 mm, the length of the liquid-phase explosive-filled warhead is 630-700 mm, the weight of the liquid-phase explosive-filled warhead is 30-40 kg, and the internal stress of the liquid-phase explosive-filled warhead is not more than 0.2MPa;
the polytetrafluoroethylene sealing ring 2 is in a second ring body shape, the second ring body of the polytetrafluoroethylene sealing ring 2 is a revolving body, the polytetrafluoroethylene sealing ring 2 is made of polytetrafluoroethylene, and the axial section of the second ring body of the polytetrafluoroethylene sealing ring 2 is rectangular;
the axis of a rotary body of the polytetrafluoroethylene sealing ring 2 is coincident with the axis of a rotary body of the warhead shell 1, the polytetrafluoroethylene sealing ring 2 is positioned in a first annular groove of the warhead shell 1, the polytetrafluoroethylene sealing ring 2 is a polytetrafluoroethylene sealing ring for sealing high-energy fuel in the warhead shell 1, the axial thickness of the polytetrafluoroethylene sealing ring is 2-3 mm, the radial thickness of the polytetrafluoroethylene sealing ring is 3mm, the upper end of the polytetrafluoroethylene sealing ring 2 protrudes from the first annular groove of the warhead shell 1, the polytetrafluoroethylene sealing ring 2 jacks up a first upper end cover, so that a gap is formed between the first upper end cover and a first outer flange, and the mechanical connecting device is used for protecting the polytetrafluoroethylene sealing ring 2, so that the polytetrafluoroethylene sealing ring 2 is not interfered when the warhead shell 1 bears pressure, tension, bending moment and torque, the polytetrafluoroethylene sealing ring 2 can well play sealing and corrosion resisting functions, and the sealing reliability of the warhead is ensured;
the shape of the filling support body 3 is a third wedge body, the third wedge body of the filling support body 3 is formed by stretching a right trapezoid, the upper end face of the third wedge body of the filling support body 3 is a rectangular plane, the upper end face of the third wedge body of the filling support body 3 is provided with lines along the stretching direction of the right trapezoid, the upper end face of the third wedge body of the filling support body 3 is formed by stretching long parallel sides of the right trapezoid, the lower end face of the third wedge body of the filling support body 3 is a rectangular plane, the lower end face of the third wedge body of the filling support body 3 is provided with a third long circular through hole, the right side face of the third wedge body of the filling support body 3 is an inclined plane, the right side face of the third wedge body of the filling support body 3 is formed by stretching a hypotenuse of the right trapezoid, the front end face of the third wedge body of the filling support body 3 is an inclined plane, the included angle between the front end face of the third wedge body of the filling support body 3 and the upper end face of the third wedge body of the filling support body 3 is an obtuse angle, the rear end face of the third wedge body of the filling support body 3 is an inclined plane, the number of fifteen filled support body 3 to fifteen obtuse angles;
the third wedge-shaped body of the filling support body 3 is placed between the first outer flange of the warhead shell 1 and the first upper end cover of the warhead shell 1, the filling support body 3 fills a gap between the first upper end cover and the first outer flange, the upper end face of the third wedge-shaped body of the filling support body 3 is in contact with the bottom surface of the first rectangular groove of the warhead shell 1, the right side face of the third wedge-shaped body of the filling support body 3 is in contact with the bottom surface of the first oblique V-shaped groove of the warhead shell 1, the front end face and the rear end face of the third wedge-shaped body of the filling support body 3 are respectively in contact with two side faces of the first oblique V-shaped groove of the warhead shell 1, a third screw is installed in a third through hole of the filling support body 3, and the filling support body 3 is connected with the first upper end cover of the warhead shell 1 through the third screw;
the shape of the anti-skid gasket 4 is a fourth concentric circular plate, the fourth concentric circular plate of the anti-skid gasket 4 is a revolving body, the upper end surface and the lower end surface of the fourth concentric circular plate of the anti-skid gasket 4 are provided with grains vertical to the revolving body axis of the warhead shell 1, and the number of the anti-skid gaskets 4 is the same as that of the filling support bodies 3;
the anti-skid gasket 4 is positioned between the third screw and the filling support body 3, the upper end surface of the anti-skid gasket 4 is contacted with the lower end surface of the third wedge-shaped body of the filling support body 3, and the lower end surface of the anti-skid gasket 4 is contacted with the third screw;
the included angle between the bottom surface of the first inclined V-shaped groove of the warhead shell 1 and the horizontal plane is the same as the included angle between the right side surface of the third wedge body of the filling support body 3 and the horizontal plane, and the included angle between the right side surface of the third wedge body of the filling support body 3 and the horizontal plane is 21-28 degrees;
the included angle between the front end face of the third wedge body of the filling support body 3 and the upper end face of the third wedge body of the filling support body 3 is the same as the included angle between the rear end face of the third wedge body of the filling support body 3 and the upper end face of the third wedge body of the filling support body 3, the included angle between the front end face of the third wedge body and the upper end face of the third wedge body is complementary to the included angle between two side faces of the first inclined V-shaped groove and the bottom face of the first inclined V-shaped groove, and the included angles between the two side faces of the first inclined V-shaped groove and the bottom face of the first inclined V-shaped groove are 55-62 degrees;
the surface roughness of the texture of the upper end surface of the third wedge-shaped body of the filling support body 3 and the texture of the upper end surface and the lower end surface of the fourth concentric circular plate of the anti-skid gasket 4 are both 12.5-25 mu m;
the first rectangular channel hoop width of warhead casing 1 is the same by the tensile width of right trapezoid with the third wedge who fills up supporter 3, and the ratio of the first rectangular channel hoop width of warhead casing 1 and the first outer flange external diameter of warhead casing 1 is 1:11 to 13;
the use method of the mechanical connecting device comprises the following steps:
step 1: assembling a warhead shell 1 and a polytetrafluoroethylene sealing ring 2;
step 2: assembling the warhead shell 1 and the filling support body 3;
and step 3: and assembling the anti-skid gasket 4 with the filling support body 3, and installing a third screw.
And 4, step 4: when the warhead shell 1 is stretched, compressed, bent and twisted, the filling support body 3 is responsible for force transmission, the polytetrafluoroethylene sealing ring 2 is protected and does not transmit force any more, the functions of sealing and corrosion resistance can be well played, and the reliability of the warhead is ensured.
Regarding filling up the right flank and the horizontal plane contained angle of the third wedge of supporter 3, the bottom surface contained angle of two sides and the first slant V-shaped groove of first slant V-shaped groove, filling up the surface roughness of the line of the up end of the third wedge of supporter 3 and the line of the up and down end face of the fourth concentric plectane of skid-resistant gasket 4, the ratio of the first rectangular channel hoop width of warhead casing 1 to the first outer flange external diameter of warhead casing 1, can take any one of following 2 kinds of modes:
implementation mode 1: the included angle between the right side surface of the third wedge body of the filling support body 3 and the horizontal plane is 21 degrees;
the included angles between the two side surfaces of the first oblique V-shaped groove and the bottom surface of the first oblique V-shaped groove are both 55 degrees;
the surface roughness of the texture of the upper end face of the third wedge-shaped body of the filling support body 3 and the texture of the upper end face and the lower end face of the fourth concentric circular plate of the antiskid gasket 4 are both 12.5 mu m;
the ratio of the circumferential width of the first rectangular groove of the warhead shell 1 to the outer diameter of the first outer flange of the warhead shell 1 is 1:11.
implementation mode 2: the included angle between the right side surface of the third wedge body of the filling support body 3 and the horizontal plane is 28 degrees;
the included angles between the two side surfaces of the first oblique V-shaped groove and the bottom surface of the first oblique V-shaped groove are both 62 degrees;
the surface roughness of the texture of the upper end surface of the third wedge-shaped body of the filling support body 3 and the texture of the upper end surface and the lower end surface of the fourth concentric circular plate of the anti-skid gasket 4 are both 25 micrometers;
the ratio of the circumferential width of the first rectangular groove of the warhead shell 1 to the outer diameter of the first outer flange of the warhead shell 1 is 1: 13.
The mechanical connecting device provided by the invention has the following technical effects:
the diameter of the liquid-phase charging warhead part is 210-220 mm, the length of the liquid-phase charging warhead part is 630-700 mm, the weight of the liquid-phase charging warhead part is 30-40 kg, the internal stress of the liquid-phase charging warhead part is not more than 0.2MPa, the axial thickness of the polytetrafluoroethylene sealing ring is 2-3 mm, the radial thickness of the polytetrafluoroethylene sealing ring is 3mm, and the axial cross section of the polytetrafluoroethylene sealing ring is rectangular. The polytetrafluoroethylene sealing ring jacks up the mechanical parts, and gaps are reserved between the mechanical parts. One side of the filling support body is a plane, the other side of the filling support body is an inclined plane, and the mounting position is adjusted according to the size of a gap between mechanical parts, so that the gap can be filled exactly. After filling, the filling material is only mechanically connected with the end cover of the warhead shell and only contacts with the shell of the warhead shell without extrusion force. And the filling support body is in contact fit with the shell of the warhead shell through a V-shaped groove, and the annular movement and the axial movement of the filling support body can be limited by the V-shaped groove of the warhead shell. The filling support body is in contact fit with the end cover of the warhead shell through a rectangular groove, and the rectangular groove of the end cover of the warhead shell can limit the circumferential movement of the filling support body. When the liquid-phase charging warhead part is subjected to axial force and moment, the support body is filled as a part for transferring force in the middle, namely, the pressure and the pulling force can be transferred, the polytetrafluoroethylene sealing ring is protected, and the polytetrafluoroethylene sealing ring is not additionally compressed or separated. The warhead is subjected to torsional torque, the torque is completely used as a component for transmitting force by the filling support body, and the polytetrafluoroethylene sealing ring is not subjected to shearing action any more. The polytetrafluoroethylene sealing ring does not need to have the function of transferring force any more, can well play the functions of sealing and corrosion resistance, and ensures the reliability of the warhead. Install anti-skidding gasket between the machine part, have the hoop line on the anti-skidding gasket, can increase the frictional resistance of radial motion between the machine part, under the impact load that prevents to relapse for a long time, fill the supporter and take place the displacement, avoid filling and lose the effect after the supporter side shifts for fill the supporter and to fill the effect that the gap supported machine part transmission power to the play of beginning to end. Further ensuring the reliability of the warhead.
Drawings
Fig. 1 is a schematic view of a mechanical coupling device. 1. The warhead comprises a warhead shell, 2, a polytetrafluoroethylene sealing ring, 3, a filling support body, 4 and an anti-skid gasket.
Detailed Description
The present invention is further described in detail with reference to the drawings and examples, it should be noted that the present invention is not limited to the following examples, and equivalent changes based on the technical scheme of the present invention are within the scope of the present invention.
Example 1:
as shown in fig. 1, the present embodiment provides a mechanical connection device, which includes a teflon seal ring 2, and is characterized by further including a warhead housing 1, a filling support body 3, and an anti-slip gasket 4;
the shape of the warhead shell 1 is a first barrel, the first barrel of the warhead shell 1 is a revolving body, the opening of the warhead shell 1 is upward, the upper end of the first barrel of the warhead shell 1 is provided with a first outer flange, the upper end surface of the first outer flange of the warhead shell 1 is provided with a first annular groove, the outermost edge of the upper end of the first outer flange of the warhead shell 1 is provided with a first oblique V-shaped groove which is uniformly distributed in the circumferential direction, the bottom surface of the first oblique V-shaped groove of the warhead shell 1 is an oblique plane, the intersection point of the bottom surface of the first oblique V-shaped groove of the warhead shell 1 and the axis of the revolving body of the first barrel is positioned at the upper end of the center of the upper end surface of the first outer flange, the two side surfaces of the first oblique V-shaped groove of the warhead shell 1 and the bottom surface of the first oblique V-shaped groove form the same acute angle, the upper end of the first outer flange of the warhead shell 1 is connected with a first upper end cover through a first screw, the first upper end cover is a circular plate, and the outermost side of the first rectangular groove of the lower end of the first upper end cover is uniformly distributed in the circumferential direction;
the axis of the revolving body of the warhead shell 1 is vertical to the ground, the warhead shell 1 is a shell of a liquid-phase explosive-filled warhead, high-energy fuel is filled in the warhead shell 1, the high-energy fuel has strong corrosivity, polytetrafluoroethylene materials and the high-energy fuel do not react chemically, the diameter of the liquid-phase explosive-filled warhead is 210-220 mm, the length of the liquid-phase explosive-filled warhead is 630-700 mm, the weight of the liquid-phase explosive-filled warhead is 30-40 kg, and the internal stress of the liquid-phase explosive-filled warhead is not more than 0.2MPa;
the polytetrafluoroethylene sealing ring 2 is in a second ring body shape, the second ring body of the polytetrafluoroethylene sealing ring 2 is a revolving body, the polytetrafluoroethylene sealing ring 2 is made of polytetrafluoroethylene, and the axial section of the second ring body of the polytetrafluoroethylene sealing ring 2 is rectangular;
the axis of the rotary body of the polytetrafluoroethylene sealing ring 2 coincides with the axis of the rotary body of the warhead shell 1, the polytetrafluoroethylene sealing ring 2 is positioned in a first annular groove of the warhead shell 1, the polytetrafluoroethylene sealing ring 2 is a polytetrafluoroethylene sealing ring for sealing high-energy fuel in the warhead shell 1, the axial thickness of the polytetrafluoroethylene sealing ring is 2-3 mm, the radial thickness of the polytetrafluoroethylene sealing ring is 3mm, the upper end of the polytetrafluoroethylene sealing ring 2 protrudes from the first annular groove of the warhead shell 1, the polytetrafluoroethylene sealing ring 2 jacks up a first upper end cover, so that a gap is formed between the first upper end cover and a first outer flange, the polytetrafluoroethylene sealing ring 2 is protected, the polytetrafluoroethylene sealing ring 2 is not interfered when the warhead shell 1 bears pressure, tension, bending moment and torque, the polytetrafluoroethylene sealing ring 2 can well play the functions of sealing and corrosion resistance, and the sealing reliability of the warhead is ensured;
the shape of the filling support body 3 is a third wedge body, the third wedge body of the filling support body 3 is formed by stretching a right trapezoid, the upper end face of the third wedge body of the filling support body 3 is a rectangular plane, the upper end face of the third wedge body of the filling support body 3 is provided with lines along the stretching direction of the right trapezoid, the upper end face of the third wedge body of the filling support body 3 is formed by stretching long parallel sides of the right trapezoid, the lower end face of the third wedge body of the filling support body 3 is a rectangular plane, the lower end face of the third wedge body of the filling support body 3 is provided with a third long circular through hole, the right side face of the third wedge body of the filling support body 3 is an inclined plane, the right side face of the third wedge body of the filling support body 3 is formed by stretching a hypotenuse of the right trapezoid, the front end face of the third wedge body of the filling support body 3 is an inclined plane, the included angle between the front end face of the third wedge body of the filling support body 3 and the upper end face of the third wedge body of the filling support body 3 is an obtuse angle, the rear end face of the third wedge body of the filling support body 3 is an inclined plane, the number of fifteen filled support body 3 to fifteen obtuse angles;
the third wedge-shaped body of the filling support body 3 is placed between the first outer flange of the warhead shell 1 and the first upper end cover of the warhead shell 1, the filling support body 3 fills a gap between the first upper end cover and the first outer flange, the upper end face of the third wedge-shaped body of the filling support body 3 is in contact with the bottom surface of the first rectangular groove of the warhead shell 1, the right side face of the third wedge-shaped body of the filling support body 3 is in contact with the bottom surface of the first oblique V-shaped groove of the warhead shell 1, the front end face and the rear end face of the third wedge-shaped body of the filling support body 3 are respectively in contact with two side faces of the first oblique V-shaped groove of the warhead shell 1, a third screw is installed in a third through hole of the filling support body 3, and the filling support body 3 is connected with the first upper end cover of the warhead shell 1 through the third screw;
the shape of the anti-skid gasket 4 is a fourth concentric circular plate, the fourth concentric circular plate of the anti-skid gasket 4 is a revolving body, the upper end surface and the lower end surface of the fourth concentric circular plate of the anti-skid gasket 4 are provided with grains vertical to the revolving body axis of the warhead shell 1, and the number of the anti-skid gaskets 4 is the same as that of the filling support bodies 3;
the antiskid gasket 4 is positioned between the third screw and the filling support body 3, the upper end surface of the antiskid gasket 4 is contacted with the lower end surface of a third wedge body of the filling support body 3, and the lower end surface of the antiskid gasket 4 is contacted with the third screw;
the using method and the working principle of the invention are as follows:
the use method of the mechanical connecting device comprises the following steps:
step 1: assembling a warhead shell 1 and a polytetrafluoroethylene sealing ring 2;
and 2, step: assembling the warhead shell 1 and the filling support body 3;
and step 3: and assembling the anti-skid gasket 4 with the filling support body 3, and installing a third screw.
And 4, step 4: when the warhead shell 1 is stretched, compressed, bent and twisted, the filling support body 3 is responsible for force transmission, the polytetrafluoroethylene sealing ring 2 is protected and does not transmit force any more, the functions of sealing and corrosion resistance can be well played, and the reliability of the warhead is ensured.
The working principle of the invention is as follows:
the polytetrafluoroethylene sealing ring 2 jacks up the first upper end cover, so that a gap is reserved between the first upper end cover and the first outer flange, the filling support body 3 is just placed in the gap, the first upper end cover is provided with a first rectangular groove, the first outer flange is provided with a first oblique V-shaped groove, and the filling support body 3 is simultaneously in contact with the first rectangular groove and the first oblique V-shaped groove, so that the gap can be just filled, and the gap is not only in contact with the first rectangular groove but also has no extrusion force. After the gap is filled, the teflon seal ring 2 is protected. Can play a role completely. Specifically, when the warhead housing 1 is subjected to axial pressure, the axial pressure is supported by the filling support body 3, and the teflon seal ring 2 is not subjected to compression pressure. When the warhead housing 1 is subjected to axial tension, the first upper end cap and the first outer flange are forced away from each other. The filling support body 3 is connected with the first upper end cover through a third screw and can bear tension, and the third wedge-shaped body of the filling support body 3 is placed in the first oblique V-shaped groove of the warhead shell 1 and can also bear tension, so that the filling support body 3 can be used as an intermediate medium to transfer tension, the compression amount of the polytetrafluoroethylene sealing ring 2 cannot be reduced, and the sealing effect of the polytetrafluoroethylene sealing ring 2 cannot be reduced. When the warhead shell 1 is subjected to bending moment, the bending moment can generate tensile force and pressure on two sides respectively, and because the filling support bodies 3 are uniformly distributed along the axial direction, the filling support bodies 3 play a role in stretching and middle and a pressed part, the filling support bodies 3 play a role in supporting and compressing, and the polytetrafluoroethylene sealing ring 2 is not influenced by the bending moment. When the warhead shell 1 is twisted, the upper end of the filling support body 3 is disassembled into the first rectangular groove to bear torque, the lower end of the filling support body 3 is disassembled into the first inclined V-shaped groove, and the leaf can bear torque, so that the twisted torque is completely transmitted by the filling support body 3, and the polytetrafluoroethylene sealing ring 2 is not influenced by twisting. The invention has the advantages that the polytetrafluoroethylene sealing ring 2 is protected, so that when the warhead shell 1 bears pressure, tension, bending moment and torque, the polytetrafluoroethylene sealing ring 2 is not interfered, the polytetrafluoroethylene sealing ring 2 can completely play the functions of sealing and corrosion resistance, and the sealing reliability of the warhead is ensured;
the included angle between the bottom surface of the first oblique V-shaped groove of the warhead shell 1 and the horizontal plane is the same as the included angle between the right side surface of the third wedge body of the filling support body 3 and the horizontal plane;
when the included angle between the right side surface of the third wedge body of the filling support body 3 and the horizontal plane is too small, the larger the space occupied by the filling support body 3 is. Because the gap to be filled by the filling support 3 is constant. The radial size of the gap filling part of the filling support body 3 is the product of the gap size and the cotangent value of the included angle between the right side surface of the third wedge body of the filling support body 3 and the horizontal plane, therefore, the smaller the included angle between the right side surface of the third wedge body of the filling support body 3 and the horizontal plane, the larger the radial size of the filling support body 3 is, the larger the space occupied by the filling support body 3 is, and the larger the space occupied by the filling support body 3 is, because the total size of the warhead is fixed, the larger the space occupied by the filling support body 3 is, the smaller the space occupied by the powder charge is, and the power is reduced. When the included angle between the right side surface of the third wedge-shaped body of the filling support body 3 and the horizontal plane is too large, the supporting force which can be provided by the filling support body 3 is too small, because the force for fixing the filling support body 3 is certain. The supporting force that the filling support body 3 can provide is the force for fixing the filling support body 3 multiplied by the cotangent value of the included angle between the right side surface of the third wedge body of the filling support body 3 and the horizontal plane, and the larger the included angle between the right side surface of the third wedge body of the filling support body 3 and the horizontal plane is, the smaller the supporting force that the filling support body 3 can provide is, and the fewer the functions of the filling support body 3 are exerted. Through a large number of experiments, the problem can be avoided when the included angle between the right side surface of the third wedge body of the filling support body 3 and the horizontal plane is 21-28 degrees, the functions can be realized, and the use requirement is met.
In this embodiment, the included angle between the right side surface of the third wedge of the filling support body 3 and the horizontal plane is 21 degrees;
an included angle between the front end face of the third wedge body of the filling support body 3 and the upper end face of the third wedge body of the filling support body 3 is the same as an included angle between the rear end face of the third wedge body of the filling support body 3 and the upper end face of the third wedge body of the filling support body 3, and an included angle between the front end face of the third wedge body and the upper end face of the third wedge body is complementary to an included angle between two side faces of the first inclined V-shaped groove and the bottom face of the first inclined V-shaped groove;
when included angles between two side surfaces of the first oblique V-shaped groove and the bottom surface of the first oblique V-shaped groove are too small, and when the width of the upper end of the first oblique V-shaped groove is consistent, the lower end of the first oblique V-shaped groove occupies too much size, so that the strength of the first outer flange is weakened too much. When the included angles between the two side surfaces of the first oblique V-shaped groove and the bottom surface of the first oblique V-shaped groove are too large, the axial forces applied to the two side surfaces of the third wedge-shaped body of the filling support body 3 by the two side surfaces of the first oblique V-shaped groove are too small, and when the filling support body 3 transmits the stretching force, the force is transmitted by the two side surfaces of the first oblique V-shaped groove, so that if the force is too small, the filling support body 3 loses the using effect. A large number of experiments find that when the included angles between the two side surfaces of the first oblique V-shaped groove and the bottom surface of the first oblique V-shaped groove are both 55 degrees to 62 degrees, the problems can be avoided, the functions can be realized, and the use requirements are met.
In this embodiment, the included angles between the two side surfaces of the first oblique V-shaped groove and the bottom surface of the first oblique V-shaped groove are both 55 °;
when the surface roughness of the texture of the upper end face of the third wedge of the filling support body 3 and the texture of the upper end face and the lower end face of the fourth concentric circular plate of the anti-skid gasket 4 is too small, the surfaces are too smooth, and the risk that the filling support body 3 can generate sideslip movement is higher when the filling support body receives vibration or radial force. Once the shim support 3 is moved, it will no longer be able to support it. The use effect is lost. When the surface roughness of the texture of the upper end face of the third wedge-shaped body of the filling support body 3 and the texture of the upper end face and the lower end face of the fourth concentric circular plate of the anti-skid gasket 4 is too large, the convex-concave surfaces are too uneven seriously, the texture directions of the surfaces are all the directions for preventing the filling support body 3 from sliding laterally, and the convex-concave surfaces are too uneven seriously, so that the convex part is stressed too much to generate local permanent compression deformation, and the function of preventing the filling support body 3 from sliding laterally is lost. Through a large number of experiments, the problems can be avoided when the surface roughness of the texture of the upper end face of the third wedge-shaped body of the filling support body 3 and the surface roughness of the texture of the upper end face and the lower end face of the fourth concentric circular plate of the anti-skid gasket 4 are both 12.5-25 micrometers, and the functions can be realized and the use requirements can be met.
In this embodiment, the surface roughness of the texture of the upper end surface of the third wedge of the shim 3 and the texture of the upper and lower end surfaces of the fourth concentric circular plate of the anti-skid gasket 4 are both 12.5 μm;
the circumferential width of the first rectangular groove of the warhead shell 1 is the same as the stretching width of the third wedge body of the filling support body 3 from a right trapezoid;
when the ratio of the circumferential width of the first rectangular groove of the warhead housing 1 to the outer diameter of the first outer flange of the warhead housing 1 is too small, the circumferential width of the filling support body 3 installed in the first rectangular groove of the warhead housing 1 is too small, when the warhead housing 1 is twisted, the torque is supported by the filling support body 3, and the smaller the circumferential width of the filling support body 3 is, the lower the support capacity can be, and the smaller the functionality is. When the ratio of the annular width of the first rectangular groove of the warhead casing 1 to the outer diameter of the first outer flange of the warhead casing 1 is too large, the annular width of the first rectangular groove of the warhead casing 1 is too large, the greater the weakening of the strength of the first upper end cover of the warhead casing 1 is, and once the first upper end cover of the warhead casing 1 is damaged under the effect of the inner side, the warhead also fails. Through a large amount of experiments discovery, the ratio of the first rectangular channel hoop width of warhead casing 1 to the first outer flange external diameter of warhead casing 1 is 1: 11-13, the above problems can be avoided, and the above functions can be realized to meet the use requirements.
In this embodiment, the ratio of the circumferential width of the first rectangular groove of the warhead housing 1 to the outer diameter of the first outer flange of the warhead housing 1 is 1:11;
the method comprises the steps of processing 5 pieces of the invention, filling liquid phase materials, and respectively applying axial tension, axial pressure, bending moment and torsion torque which are three times harsher than the actual conditions after the installation is finished. The 5 devices are respectively disassembled, the size of the polytetrafluoroethylene sealing ring 2 is detected, and the polytetrafluoroethylene sealing ring 2 is not permanently deformed as the original state, so that the polytetrafluoroethylene sealing ring 2 can be well protected, the sealing and corrosion resisting effects are achieved, and the reliability of a warhead is ensured.
The mechanical connecting device of the invention brings the technical effects that:
the diameter of the liquid-phase charging warhead part is 210-220 mm, the length of the liquid-phase charging warhead part is 630-700 mm, the weight of the liquid-phase charging warhead part is 30-40 kg, the internal stress of the liquid-phase charging warhead part is not more than 0.2MPa, the axial thickness of the polytetrafluoroethylene sealing ring is 2-3 mm, the radial thickness of the polytetrafluoroethylene sealing ring is 3mm, and the axial cross section of the polytetrafluoroethylene sealing ring is rectangular. The polytetrafluoroethylene sealing ring jacks up the mechanical parts, and gaps are reserved between the mechanical parts. One side of the filling support body is a plane, the other side of the filling support body is an inclined plane, and the mounting position is adjusted according to the size of a gap between mechanical parts, so that the gap can be filled exactly. After filling, the filling material is only mechanically connected with the end cover of the warhead shell and only contacts with the shell of the warhead shell without extrusion force. And the filling support body is in contact fit with the shell of the warhead shell through a V-shaped groove, and the annular movement and the axial movement of the filling support body can be limited by the V-shaped groove of the warhead shell. The filling support body is in contact fit with the end cover of the warhead shell through a rectangular groove, and the rectangular groove of the end cover of the warhead shell can limit the circumferential movement of the filling support body. When the liquid-phase charging warhead is subjected to axial force and moment, the filling support body is used as a part for transferring force in the middle, so that pressure can be transferred, tension can be transferred, the polytetrafluoroethylene sealing ring is protected, and the polytetrafluoroethylene sealing ring is not additionally compressed or separated. The warhead is subjected to torsional torque, the torque is completely used as a component for transmitting force by the filling support body, and the polytetrafluoroethylene sealing ring is not subjected to shearing action any more. The polytetrafluoroethylene sealing ring does not need to have the function of transmitting force any more, can well play the functions of sealing and corrosion resistance, and ensures the reliability of the warhead. Install anti-skidding gasket between the machine part, have the hoop line on the anti-skidding gasket, can increase the frictional resistance of radial motion between the machine part, under the impact load that prevents to relapse for a long time, fill the supporter and take place the displacement, avoid filling and lose the effect after the supporter side shifts for fill the supporter and to fill the effect that the gap supported machine part transmission power to the play of beginning to end. Further ensuring the reliability of the warhead.
Example 2:
example 2 differs from example 1 in that:
in this embodiment, the included angle between the right side surface of the third wedge-shaped body of the filling support body 3 and the horizontal plane is 28 degrees;
in this embodiment, the included angles between the two side surfaces of the first oblique V-shaped groove and the bottom surface of the first oblique V-shaped groove are both 62 degrees;
in the embodiment, the surface roughness of the texture of the upper end surface of the third wedge-shaped body of the filling support body 3 and the texture of the upper and lower end surfaces of the fourth concentric circular plate of the anti-skid gasket 4 are both 25 μm;
in this embodiment, the ratio of the circumferential width of the first rectangular groove of the warhead housing 1 to the outer diameter of the first outer flange of the warhead housing 1 is 1: 13;
the method comprises the steps of processing 5 pieces of the invention, filling liquid phase materials, and respectively applying axial tension, axial pressure, bending moment and torsion torque which are three times harsher than the actual conditions after the installation is finished. The 5 devices are respectively disassembled, the size of the polytetrafluoroethylene sealing ring 2 is detected, and the polytetrafluoroethylene sealing ring 2 is not permanently deformed as the original state, so that the polytetrafluoroethylene sealing ring 2 can be well protected, the sealing and corrosion resisting effects are achieved, and the reliability of a warhead is ensured.
The mechanical connecting device of the invention brings the technical effects that:
the diameter of the liquid-phase charging warhead part is 210-220 mm, the length of the liquid-phase charging warhead part is 630-700 mm, the weight of the liquid-phase charging warhead part is 30-40 kg, the internal stress of the liquid-phase charging warhead part is not more than 0.2MPa, the axial thickness of the polytetrafluoroethylene sealing ring is 2-3 mm, the radial thickness of the polytetrafluoroethylene sealing ring is 3mm, and the axial cross section of the polytetrafluoroethylene sealing ring is rectangular. The polytetrafluoroethylene sealing ring jacks up the mechanical parts, and gaps are reserved between the mechanical parts. One side of the filling support body is a plane, the other side of the filling support body is an inclined plane, and the gap can be filled just by adjusting the installation position according to the size of the gap between the mechanical parts. After filling, the filling material is only mechanically connected with the end cover of the warhead shell and only contacts with the shell of the warhead shell without extrusion force. And the filling support body is in contact fit with the shell of the warhead shell through a V-shaped groove, and the annular movement and the axial movement of the filling support body can be limited by the V-shaped groove of the warhead shell. The filling support body is in contact fit with the end cover of the warhead shell through the rectangular grooves, and the rectangular grooves of the end cover of the warhead shell can limit the circumferential movement of the filling support body. When the liquid-phase charging warhead part is subjected to axial force and moment, the support body is filled as a part for transferring force in the middle, namely, the pressure and the pulling force can be transferred, the polytetrafluoroethylene sealing ring is protected, and the polytetrafluoroethylene sealing ring is not additionally compressed or separated. The warhead is subjected to torsional torque, the torque is completely used as a component for transmitting force by the filling support body, and the polytetrafluoroethylene sealing ring is not subjected to shearing action any more. The polytetrafluoroethylene sealing ring does not need to have the function of transferring force any more, can well play the functions of sealing and corrosion resistance, and ensures the reliability of the warhead. Install anti-skidding gasket between the machine part, have the hoop line on the anti-skidding gasket, can increase the frictional resistance of radial motion between the machine part, under the impact load that prevents to relapse for a long time, fill the supporter and take place the displacement, avoid filling and lose the effect after the supporter side shifts for fill the supporter and to fill the effect that the gap supported machine part transmission power to the play of beginning to end. Further ensuring the reliability of the warhead.
Claims (3)
1. A mechanical connecting device comprises a polytetrafluoroethylene sealing ring (2), and is characterized by also comprising a warhead shell (1), a filling support body (3) and an anti-skid gasket (4);
the shape of the warhead shell (1) is a first barrel body, the first barrel body of the warhead shell (1) is a rotary body, the opening of the warhead shell (1) is upward, the upper end of the first barrel body of the warhead shell (1) is provided with a first outer flange, the upper end surface of the first outer flange of the warhead shell (1) is provided with a first annular groove, the outermost edge of the upper end of the first outer flange of the warhead shell (1) is provided with first oblique V-shaped grooves which are uniformly distributed in the circumferential direction, the bottom surface of the first oblique V-shaped groove of the warhead shell (1) is an inclined plane, the intersection point of the bottom surface of the first oblique V-shaped groove of the warhead shell (1) and the axis of the rotary body of the first outer flange is positioned at the upper end of the center of the upper end surface of the first outer flange, the included angles between the two side surfaces of the first oblique V-shaped groove of the warhead shell (1) and the bottom surface of the first oblique V-shaped groove are the same acute angles, the upper end angles are formed by the upper end covers of first rectangular screws which are uniformly distributed in the outermost side, and the upper end covers of the first rectangular screws are arranged on the outermost side of the first end covers;
the axis of the revolving body of the warhead shell (1) is vertical to the ground, the warhead shell (1) is a shell of a liquid-phase explosive-filled warhead, high-energy fuel is filled in the warhead shell (1), the high-energy fuel has strong corrosivity, polytetrafluoroethylene materials and the high-energy fuel do not react chemically, the diameter of the liquid-phase explosive-filled warhead is 210-220 mm, the length of the liquid-phase explosive-filled warhead is 630-700 mm, the weight of the liquid-phase explosive-filled warhead is 30-40 kg, and the internal stress of the liquid-phase explosive-filled warhead is not more than 0.2MPa;
the polytetrafluoroethylene sealing ring (2) is in a second ring body shape, the second ring body of the polytetrafluoroethylene sealing ring (2) is a revolving body, the polytetrafluoroethylene sealing ring (2) is made of polytetrafluoroethylene, and the axial section of the second ring body of the polytetrafluoroethylene sealing ring (2) is rectangular;
the axis of a revolving body of the polytetrafluoroethylene sealing ring (2) is coincident with the axis of a revolving body of the warhead shell (1), the polytetrafluoroethylene sealing ring (2) is positioned in a first annular groove of the warhead shell (1), the polytetrafluoroethylene sealing ring (2) is a polytetrafluoroethylene sealing ring for sealing high-energy fuel in the warhead shell (1), the axial thickness of the polytetrafluoroethylene sealing ring is 2-3 mm, the radial thickness of the polytetrafluoroethylene sealing ring is 3mm, the upper end of the polytetrafluoroethylene sealing ring (2) protrudes from the first annular groove of the warhead shell (1), and the polytetrafluoroethylene sealing ring (2) jacks up the first upper end cover, so that a gap is reserved between the first upper end cover and the first outer flange;
the shape of the filling support body (3) is a third wedge body, the third wedge body of the filling support body (3) is formed by stretching a right trapezoid, the upper end face of the third wedge body of the filling support body (3) is a rectangular plane, the upper end face of the third wedge body of the filling support body (3) is provided with lines along the stretching direction of the right trapezoid, the upper end face of the third wedge body of the filling support body (3) is formed by stretching long parallel sides of the right trapezoid, the lower end face of the third wedge body of the filling support body (3) is a rectangular plane, the lower end face of the third wedge body of the filling support body (3) is provided with a third long circular through hole, the right side face of the third wedge body of the filling support body (3) is an inclined plane, the right side face of the third wedge body of the filling support body (3) is formed by stretching a right-angled oblique side edge, the front end face of the third wedge body of the filling support body (3) is an inclined plane, the front end face of the third wedge body of the filling support body (3) and the upper end face of the third wedge body (3) are included angles, the rear end faces of the filling support body (3) and the up to the up end face of the filling support body (3);
a third wedge body of the filling support body (3) is placed between a first outer flange of the warhead shell (1) and a first upper end cover of the warhead shell (1), the filling support body (3) fills a gap between the first upper end cover and the first outer flange, the upper end surface of the third wedge body of the filling support body (3) is contacted with the bottom surface of a first rectangular groove of the warhead shell (1), the right side surface of the third wedge body of the filling support body (3) is contacted with the bottom surface of a first oblique V-shaped groove of the warhead shell (1), the front end surface and the rear end surface of the third wedge body of the filling support body (3) are respectively contacted with two side surfaces of the first oblique V-shaped groove of the warhead shell (1), a third screw is installed in a third long circular through hole of the filling support body (3), and the filling support body (3) is connected with the first upper end cover of the warhead shell (1) through the third screw;
the shape of the anti-skid gasket (4) is a fourth concentric circular plate, the fourth concentric circular plate of the anti-skid gasket (4) is a revolving body, the upper end surface and the lower end surface of the fourth concentric circular plate of the anti-skid gasket (4) are provided with grains vertical to the axis of the revolving body of the warhead shell (1), and the number of the anti-skid gaskets (4) is the same as that of the filling support bodies (3);
the antiskid gasket (4) is positioned between the third screw and the filling support body (3), the upper end surface of the antiskid gasket (4) is contacted with the lower end surface of a third wedge body of the filling support body (3), and the lower end surface of the antiskid gasket (4) is contacted with the third screw;
the included angle between the bottom surface of the first inclined V-shaped groove of the warhead shell (1) and the horizontal plane is the same as the included angle between the right side surface of the third wedge body of the filling support body (3) and the horizontal plane, and the included angle between the right side surface of the third wedge body of the filling support body (3) and the horizontal plane is 21-28 degrees;
an included angle between the front end face of a third wedge body of the filling support body (3) and the upper end face of the third wedge body of the filling support body (3) is the same as an included angle between the rear end face of the third wedge body of the filling support body (3) and the upper end face of the third wedge body of the filling support body (3), an included angle between the front end face of the third wedge body and the upper end face of the third wedge body is complementary with included angles between two side faces of the first inclined V-shaped groove and the bottom face of the first inclined V-shaped groove, and included angles between two side faces of the first inclined V-shaped groove and the bottom face of the first inclined V-shaped groove are 55-62 degrees;
the surface roughness of the texture of the upper end surface of the third wedge-shaped body of the filling support body (3) and the texture of the upper end surface and the lower end surface of the fourth concentric circular plate of the anti-skid gasket (4) is 12.5-25 mu m;
the annular width of the first rectangular groove of the warhead casing (1) is the same with the third wedge of the filling support body (3) by the stretching width of the right trapezoid, and the annular width of the first rectangular groove of the warhead casing (1) is 1 to the outer diameter of the first outer flange of the warhead casing (1): 11 to 13;
the use method of the mechanical connecting device comprises the following steps:
step 1: assembling a warhead shell (1) and a polytetrafluoroethylene sealing ring (2);
step 2: assembling the warhead shell (1) and the filling support body (3);
and step 3: assembling the anti-skid gasket (4) and the filling support body (3), and installing a third screw;
and 4, step 4: when the warhead shell (1) is stretched, compressed, bent and twisted, the filling support body (3) is responsible for force transmission, the polytetrafluoroethylene sealing ring (2) is protected and does not transmit force any more, the functions of sealing and corrosion resistance can be well played, and the reliability of the warhead is ensured.
2. A mechanical connection according to claim 1, characterised in that the right side of the third wedge of the shim support (3) makes an angle of 21 ° with the horizontal;
the included angles between the two side surfaces of the first oblique V-shaped groove and the bottom surface of the first oblique V-shaped groove are both 55 degrees;
the surface roughness of the texture of the upper end surface of the third wedge-shaped body of the filling support body (3) and the surface roughness of the texture of the upper end surface and the lower end surface of the fourth concentric circular plate of the anti-skid gasket (4) are both 12.5 mu m;
the ratio of the annular width of a first rectangular groove of the warhead shell (1) to the outer diameter of a first outer flange of the warhead shell (1) is 1:11.
3. a mechanical connection according to claim 1, characterised in that the right side of the third wedge of the shim support (3) makes an angle of 28 ° with the horizontal plane;
the included angles between the two side surfaces of the first oblique V-shaped groove and the bottom surface of the first oblique V-shaped groove are both 62 degrees;
the surface roughness of the texture of the upper end surface of the third wedge-shaped body of the filling support body (3) and the texture of the upper end surface and the lower end surface of the fourth concentric circular plate of the anti-skid gasket (4) is 25 micrometers;
the ratio of the annular width of a first rectangular groove of the warhead shell (1) to the outer diameter of a first outer flange of the warhead shell (1) is 1: 13.
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| JPH01193464A (en) * | 1988-01-29 | 1989-08-03 | Bridgestone Corp | Water-proof structure of flexible joint |
| CN101427062A (en) * | 2005-07-07 | 2009-05-06 | 马特森技术公司 | Seal arrangement with corrosion barrier and method |
| CN203910441U (en) * | 2014-06-17 | 2014-10-29 | 浙江电力变压器有限公司 | Leakage prevention oil-immersed type transformer |
| CN205534741U (en) * | 2016-04-26 | 2016-08-31 | 四川建筑职业技术学院 | Terminal seal structure of pipeline |
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2021
- 2021-03-25 CN CN202110319494.XA patent/CN113236777B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01193464A (en) * | 1988-01-29 | 1989-08-03 | Bridgestone Corp | Water-proof structure of flexible joint |
| CN101427062A (en) * | 2005-07-07 | 2009-05-06 | 马特森技术公司 | Seal arrangement with corrosion barrier and method |
| CN203910441U (en) * | 2014-06-17 | 2014-10-29 | 浙江电力变压器有限公司 | Leakage prevention oil-immersed type transformer |
| CN205534741U (en) * | 2016-04-26 | 2016-08-31 | 四川建筑职业技术学院 | Terminal seal structure of pipeline |
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