CN117489746B - Buffer device and buffer method for recovering bracket in decompression water-entering compression ratio experiment - Google Patents
Buffer device and buffer method for recovering bracket in decompression water-entering compression ratio experiment Download PDFInfo
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- CN117489746B CN117489746B CN202311839529.8A CN202311839529A CN117489746B CN 117489746 B CN117489746 B CN 117489746B CN 202311839529 A CN202311839529 A CN 202311839529A CN 117489746 B CN117489746 B CN 117489746B
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- 230000006837 decompression Effects 0.000 title claims abstract description 40
- 238000002474 experimental method Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000006835 compression Effects 0.000 title claims description 8
- 238000007906 compression Methods 0.000 title claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000003139 buffering effect Effects 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 17
- 230000000149 penetrating effect Effects 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000009833 condensation Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 208000027418 Wounds and injury Diseases 0.000 claims 1
- 230000006378 damage Effects 0.000 claims 1
- 208000014674 injury Diseases 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 40
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 14
- 238000011084 recovery Methods 0.000 description 12
- 239000004677 Nylon Substances 0.000 description 6
- 229920001778 nylon Polymers 0.000 description 6
- 239000012634 fragment Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/0029—Location, co-location
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/0041—Locking; Fixing in position
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a buffer device and a buffer method for recovering a bracket in a decompression water inlet scaling experiment, and belongs to the technical field of water inlet tests. The problems that the bracket crushing piece interferes with the test when the decompression is carried out in the water shrinkage ratio test, the speed regulation cost is high by adopting different brackets, the emission cost is high, the test is influenced by high-speed air flow during actual emission, the electromagnetic ejection decompression environment (for meeting the cavitation number of the shrinkage ratio test), the high humidity environment and the dangerous coefficient is high during working conditions such as capacitance and high-voltage circuit are solved. The invention particularly relates to a buffer device which can recover a carrier and a catcher of a navigation body in a nondestructive mode during a decompression water inlet reduction ratio test, can seal and isolate tail gas which can push the navigation body out of a cylinder during the decompression water inlet reduction ratio test, can push the navigation body to generate higher speed by utilizing low pressure and can be regulated and controlled accurately. The whole device is highly attached to the launching tube, the inner diameter of the buffering device meets the launching requirement of a navigation body, and the buffering effect is good.
Description
Technical Field
The invention belongs to the technical field of water inlet tests, and particularly relates to a buffer device capable of blocking a tail gas recovery bracket in a decompression water inlet scaling experiment and a buffer method thereof.
Background
In the water test of the navigation body, 1:1 reduction test, each navigation body is filled with water, so that the model needs to be scaled, and when the model is scaled and filled with water test, the model needs to be scaled, and the water filling speed and the water filling pressure are synchronously scaled by the scaling factor, so that the scaled water filling model is ensured to be consistent with the prototype water filling model. In the decompression water-entering compression ratio test, high-pressure gas is generally adopted to push the bracket, so that the purpose of high-speed water entering of the navigation body is realized. Therefore, to ensure the integrity of the barrel, the carrier is typically of nylon material, with the high pressure gas pushing the nylon carrier, which pushes the craft and then impacts to fracture at the barrel muzzle. The nylon bracket is broken to generate a large amount of fragments, and simultaneously carries a large amount of high-speed air flow to be sprayed out from a muzzle, and the bracket fragments and the high-speed air flow have great influence on the observation of wake water inflow phenomenon of a decompression ratio water inflow test. Meanwhile, the price of the bracket made of nylon materials is relatively high, and the bracket which cannot be reused makes the test cost high, and the repeated unfolding of the test is adversely affected.
Disclosure of Invention
Therefore, the practical problems that the bracket breaking piece interferes with the test when the decompression is performed in the water shrinkage ratio test, different brackets are adopted, the speed regulation cost is high, the emission cost is high, the high-speed air flow during actual emission affects the test, the electromagnetic ejection decompression environment (for meeting the cavitation number of the shrinkage ratio test), the high humidity environment, the capacitor, the high-voltage circuit and the like are avoided, and the danger coefficient is high during working conditions are solved. The invention provides a buffer device capable of blocking a tail gas recovery bracket in a decompression water inlet shrinkage ratio experiment and a buffer method thereof, in particular to a buffer device capable of recovering a carrier and a catcher of a navigation body in a lossless manner in a decompression water inlet shrinkage ratio experiment, blocking tail gas which can push the navigation body out of a cylinder in the decompression water shrinkage ratio experiment, pushing the navigation body by using low pressure to generate higher speed and accurately regulating.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a buffer device capable of blocking a tail gas recovery bracket in a decompression water-entering condensation ratio experiment comprises an installation area, a buffer area and a self-locking area,
the mounting area comprises a transmitting cylinder, a bracket connecting rod and an air chamber, wherein the air chamber is mounted at the bottom of the transmitting cylinder and is connected with the bracket through the bracket connecting rod;
the buffer area comprises a mounting cylinder, a spring, a support rod, a spring cap and a top plate, wherein one end of the mounting cylinder is provided with a plurality of hole grooves, the bottom of each hole groove is provided with a through hole, the other end of the mounting cylinder is provided with a positioning groove, two positioning columns, a positioning slide way and a stopping block, the wall of the positioning slide way is provided with a rope penetrating hole used for penetrating a positioning rope, and the peripheral outer wall of the mounting cylinder is provided with a long round hole used for guiding air flow; the middle of the supporting rod is provided with a shaft shoulder, one side of the shaft shoulder is provided with a thin cylindrical section, the other side of the shaft shoulder is provided with a thick cylindrical section, the thin cylindrical section penetrates through the spring and then extends out through a through hole at the bottom of a hole groove of the mounting cylinder, the thick cylindrical section penetrates through a spring cover cap, the top end of the supporting rod is connected with a top plate of the mounting cylinder, and the transmitting cylinder is connected with the mounting cylinder;
the self-locking area comprises a self-locking spring, a positioning ball, a positioning rope, a positioning guide wheel, positioning gears, an adjusting gear and a positioning plate, wherein the self-locking spring is connected with the positioning ball and the positioning rope, the other end of the positioning rope is connected onto gear teeth of the positioning gear by bypassing the positioning guide wheel through a positioning slot hole of the mounting cylinder, the positioning guide wheel is mounted on one positioning column at the bottom of the mounting cylinder, the gear teeth of the positioning gear are mounted on the other positioning column at the bottom of the mounting cylinder, the adjusting gear is meshed with the positioning gears, protruding parts on two sides are aligned with a slideway of the mounting cylinder, a plurality of special-shaped through holes are uniformly formed in the positioning plate, positioning holes are formed in one side of the positioning plate, the special-shaped through holes are aligned with the cylinder, the positioning holes are aligned with the positioning column of the mounting cylinder respectively, and the positioning holes are covered into the positioning groove of the mounting cylinder, and then the positioning plate is fixed with the mounting cylinder.
Furthermore, 8 holes and grooves are uniformly formed in one end of the mounting cylinder.
Furthermore, two reference columns, one diameter is 2mm, one diameter is 5mm, and the location guide pulley is installed on the diameter 2mm reference column of installation section of thick bamboo bottom, and the location gear teeth are installed on the diameter 5mm reference column of installation section of thick bamboo bottom.
Still further, the bracket is a steel material.
Furthermore, the oblong holes are uniform in size and shape, uniform in position and uniform in distribution, so that the flow rate and the flow rate of the gas discharged from each oblong through hole are the same, and the effect of uniform exhaust is achieved.
Furthermore, the adjusting gear is uniformly provided with 8 protruding cylindrical rods on the ring, the length of each cylindrical rod exceeds the maximum diameter of the mounting cylinder, so that when the rotating adjusting gear is released, the distance between a person and the supporting rod is enough, the supporting rod rebounds to prevent the person from being injured, after the self-locking of the emission is finished, the bracket is returned to the initial position, and the buffering device is restored to the initial state by rotating the adjusting gear through the cylindrical rods.
Further, an annular semicircular groove is formed in the tail end of the supporting rod, penetrating through the spring, of the supporting rod thin cylindrical section.
Further, the wire diameter x length of the spring is 8mm x 32mm x 600mm, the screw pitch is 10mm, and the spring is made of piano steel.
The application method of the buffer device capable of blocking the tail gas recovery bracket in the decompression water-entering scaling experiment specifically comprises the following steps:
(1) In an initial state, the spring is in a relaxed state, and the supporting rod shaft shoulder is propped against the spring cap;
(2) The top plate receives impact to drive the supporting rod, and the supporting rod shaft shoulder compresses the spring to absorb kinetic energy;
(3) The supporting rod is impacted to move, the positioning ball moves in the annular semicircular groove at the tail end of the thin cylindrical section of the supporting rod, after kinetic energy is completely absorbed by the spring, the self-locking spring presses the positioning ball in the annular semicircular groove of the supporting rod, the supporting rod is fixed, the spring is prevented from rebounding, the bracket is prevented from retroflection, and the launching device is damaged;
(4) And returning the bracket to the initial position, rotating the adjusting gear to drive the positioning gear to tighten the positioning rope, pulling the positioning ball out of the annular semicircular groove of the supporting rod, rebounding the supporting rod under the action of the spring, rebounding the positioning ball under the action of the self-locking spring, pulling the positioning rope, rotating the positioning gear to enable the adjusting gear to rotate, enabling the adjusting gear to touch the stop block of the mounting cylinder to stop rotating, and recovering the buffering device to the initial state.
Compared with the prior art, the buffer device and the buffer method thereof for blocking the tail gas recovery bracket in the decompression water-entering condensation ratio experiment have the beneficial effects that:
(1) According to the invention, the bracket is replaced by steel (the weight is about 15kg, the emission speed is 100m/s, the kinetic energy of the bracket is about 7.5X10-3J), the bracket is prevented from being broken, the test cost is reduced, the complete bracket can also seal and separate high-pressure air pushing the navigation body and guide out the high-pressure air from the slotted hole formed in the barrel opening, and the influence of the emission air flow on the test is reduced.
(2) The launching tube and the air chamber are of a high sealing structure, the 0.6 megaPa atmospheric pressure can generate kinetic energy equivalent to the 2 megaPa atmospheric pressure of a non-high sealing structure, the interference of the high pressure air to a test is reduced, meanwhile, the air chamber is low in pressure and high in speed, the accurate regulation and control of the tube-out speed of a navigation body can be achieved, further, a decompression water shrinkage ratio test can be better conducted, data are observed and collected, the repeatability of the test is improved, and the test cost is reduced.
(3) The invention is arranged at the outlet of the launching tube through the bolt connection, and does not affect the tube outlet of the navigation body.
(4) After the bracket pushes the navigation body to launch, the kinetic energy of the bracket can be gradually converted into the compression amount of the spring along with the compression buffer device, the cylinder wall is provided with a slotted hole for exhausting air flow, and the self-locking device at the outlet locks the buffer device, so that the bracket is ensured not to rebound.
(5) The whole device is highly attached to the launching tube, the inner diameter of the buffering device meets the launching requirement of a navigation body, and the buffering effect is good.
(6) The buffer device is simple to operate, convenient to install and good in reliability, is used for blocking tail gas and recovering a bracket and accurately adjusting the speed of a navigation body during a decompression water shrinkage ratio test, further better performs the decompression water shrinkage ratio test, observes and collects data, improves test repeatability, can absorb impact force by a simple mechanical structure and is self-locking, and the manufacturing cost of the device is effectively reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a buffer device for blocking an exhaust gas recovery bracket in a decompression water-in scaling experiment according to the invention;
FIG. 2 is an exploded view of a buffer device according to the present invention for blocking an exhaust gas recovery bracket in a reduced pressure water-in-condensation experiment;
FIG. 3 is an exploded isometric view of a buffer device of the invention for blocking an exhaust gas recovery bracket in a reduced pressure water-in-condensation experiment;
FIG. 4 is a front cross-sectional view of a buffer device for blocking an exhaust gas recovery bracket in a reduced pressure water-in-condensation ratio experiment according to the present invention;
FIG. 5 is a front view of the mounting cartridge;
FIG. 6 is a top view of the mounting cartridge;
FIG. 7 is a schematic view of the structure of the positioning end of the mounting cylinder;
FIG. 8 is an enlarged view of the bottom of the mounting cylinder;
FIG. 9 is a schematic view of a semi-sectional structure of a mounting cartridge;
FIG. 10 is a front view of the support bar;
FIG. 11 is a front view of the detent ball;
FIG. 12 is a front view of a positioning guide;
FIG. 13 is a front view of the adjustment gear;
reference numerals: 1-transmitting cylinder, 2-bracket, 3-bracket connecting rod, 4-air chamber, 5-mounting cylinder, 6-spring, 7-supporting rod, 8-spring cap, 9-roof, 10-self-locking spring, 11-locating ball, 12-locating rope, 13-locating guide wheel, 14-locating gear, 15-adjusting gear, 16-locating plate, 17-stopping block, 18-locating column, 19-locating slot, 20-through hole, 21-locating slide way, 22-rope penetrating hole, 23-hole slot.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that, in the case of no conflict, embodiments of the present invention and features of the embodiments may be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-13 for illustrating the present embodiment, a buffer device capable of blocking an exhaust gas recovery bracket in a decompression water-entry scaling experiment includes a mounting region, a buffer region and a self-locking region,
the mounting area comprises a transmitting cylinder 1, a bracket 2, a bracket connecting rod 3 and an air chamber 4, wherein the air chamber 4 is mounted at the bottom of the transmitting cylinder 1, and the air chamber 4 is connected with the bracket 2 through the bracket connecting rod 3;
the buffer area comprises a mounting cylinder 5, a spring 6, a support rod 7, a spring cap 8 and a top plate 9, wherein one end of the mounting cylinder 5 is provided with a plurality of hole grooves 23, the bottom of each hole groove 23 is provided with a through hole 20, the other end of each hole groove is provided with a positioning groove 19, a positioning column 18, a positioning slide way 21 and a stopping block 17, the stopping block 17 is used for limiting the rotation range of the adjusting gear and preventing excessive rotation, the wall of the positioning slide way 21 is provided with a rope penetrating hole 22 used for penetrating a positioning rope 12, and the circumferential outer wall of the mounting cylinder 5 is provided with a slotted hole used for guiding air flow; the middle of the supporting rod 7 is provided with a shaft shoulder, one side of the shaft shoulder is provided with a thin cylindrical section, the other side of the shaft shoulder is provided with a thick cylindrical section, the thin cylindrical section penetrates through the spring 6 and then extends out through a through hole at the bottom of a hole slot of the mounting cylinder 5, the thick cylindrical section penetrates through a spring cover cap 8, the top end of the supporting rod 7 is connected with a top plate 9 of the mounting cylinder 5, and the transmitting cylinder 1 is connected with the mounting cylinder 5;
the self-locking area comprises a self-locking spring 10, a positioning ball 11, a positioning rope 12, a positioning guide wheel 13, a positioning gear 14, an adjusting gear 15 and a positioning plate 16, wherein the self-locking spring 10 is connected with the positioning ball 11 and the positioning rope 12, the positioning rope 12 is arranged in a positioning groove 19, and the other end of the positioning rope 12 is connected to gear teeth of the positioning gear 14 through a rope penetrating hole 22 of the mounting barrel 5 and the positioning guide wheel 13. Two positioning columns 18, one with the diameter of 2mm and one with the diameter of 5mm, a positioning guide wheel 13 is arranged on the positioning column 18 with the diameter of 2mm at the bottom of the installation cylinder 5, gear teeth of a positioning gear 14 are arranged on the positioning column 18 with the diameter of 5mm at the bottom of the installation cylinder 5, an adjusting gear 15 is meshed with the positioning gear 14 for installation, protruding parts at two sides are aligned with a positioning slideway 21 of the installation cylinder 5 for installation, a plurality of through holes are uniformly formed in a positioning plate 16, one side of the positioning plate is provided with positioning holes, the through holes are aligned with the through holes at the lower part of the installation cylinder 5, the positioning holes are aligned with the positioning columns 18 of the installation cylinder 5 respectively, a positioning groove 19 of the installation cylinder 5 is covered, and then the positioning plate 16 is fixed with the installation cylinder 5.
8 hole grooves 23 are uniformly formed in one end of the mounting cylinder 5, a spring 6 is mounted in each hole groove 23, a through hole 20 is formed in the bottom of each hole groove 23, a supporting rod 7 with a shaft shoulder penetrates through the spring 6 and extends out of the through hole 20 at the bottom of each hole groove 23, the shaft shoulder of the supporting rod 7 is screwed in the hole groove 23 by a spring cap 8 on the other side of the supporting rod 7, and the supporting rod 7 extends out of the spring cap 8 to be connected to the top plate 9.
The launching tube 1 and the air chamber 4 are of high-pressure sealing structures, high-pressure air can be fully utilized when the decompression water-shrinkage ratio test navigation body launches, 0.6 megapascal atmospheric pressure can generate kinetic energy equivalent to 2 megapascal atmospheric pressure of a non-high-sealing structure, and the interference of the high-pressure air to the test is reduced.
The bracket 2 is made of steel materials, realizes the recycling of the bracket and the catcher in the process of transmitting, reduces the cost problem caused by adopting different brackets, avoids the problem that broken fragments generated after the nylon bracket is used for transmitting affect test data, and also avoids the problem that the danger coefficient is high in the working conditions of electromagnetic ejection decompression environment (in order to meet the cavitation number of a shrinkage ratio test), high-humidity environment, capacitance, high-voltage circuit and the like.
The thin cylindrical section of the supporting rod 7 passes through the spring 6, and the tail end of the supporting rod is provided with an annular semicircular groove. The spring 6 has a gauge (wire diameter×diameter×length) of 8mm×32mm×600mm, and a pitch of 10mm, and is made of steel.
The spring 6 is composed of elastic coefficientAnd (3) calculating a formula: />，
Wherein:is the shear modulus of the material; />Is the diameter of the spring wire; />The effective number of turns of the spring; />Is the middle diameter of the spring; so that the spring coefficient of the spring is +>Is 0.642903,8 the maximum absorbable of the springs>Energy absorption->Each spring compresses 85.38mm.
The thin cylindrical section of the supporting rod 7 passes through the through hole 20 at the bottom of the groove of the mounting cylinder 5, the spring cap 8 passes through the thicker cylindrical section of the supporting rod 7 to fix the shaft shoulder of the supporting rod 7 in the hole 23 of the mounting cylinder 5, and the spring cap 8 is connected with the shaft shoulder of the supporting rod 7 through threads to be mounted in the hole 23 of the mounting cylinder 5.
The mounting cylinder 5 is provided with the holes 23 and the through holes 20 which are uniformly distributed, and the depths and the sizes of the holes 23 are identical, so that the buffer effect is ensured.
The size and shape of the plurality of oblong holes of the mounting cylinder 5 are consistent, the positions are consistent, and the oblong holes are uniformly distributed, so that the flow velocity and the flow of the gas exhausted from each oblong hole are the same, and the effect of uniform exhaust is achieved.
The mounting cylinder 5 is connected with the launching cylinder 1 through 12 bolts with diameters 27, the maximum bearing tension is about 648KN, and the spring 6 can be compressed by 120mm.
The positioning plate 16 is connected with the mounting cylinder 5 through a plurality of bolts.
The self-locking spring 10 is connected with the positioning ball 11, the positioning ball 11 is connected with the positioning rope 12, and the self-locking spring 10 and the positioning ball 11 are arranged in the positioning groove 19 of the mounting cylinder 5.
The adjusting gear 15 is uniformly provided with 8 protruding cylindrical rods on the ring, the length of the cylindrical rods exceeds the maximum diameter of the mounting cylinder 5, so that when the rotating adjusting gear 15 is released, the distance between a person and the supporting rod 7 is enough, the supporting rod 7 rebounds to prevent the person from being injured, after the self-locking of the emission is finished, the bracket 2 is returned to the initial position, and the buffering device is restored to the initial state by utilizing the cylindrical rods to rotate the adjusting gear 15.
The buffer method of the buffer device capable of blocking the tail gas recovery bracket in the decompression water-entering scaling experiment comprises the following steps:
(1) Before the test, the device is fixedly connected with the transmitting cylinder opening through bolt connection, and the spring 6 is adjusted to an initial state.
(2) In the test, the carrier 2 of the navigation body is pushed by high-pressure gas to drive the navigation body to emit to the nozzle to move, the carrier 2 moves to the top plate 9, the top plate 9 receives impact and drives the supporting rod 7, and the shaft shoulder compression spring 6 of the supporting rod 7 absorbs kinetic energy; the supporting rod 7 drives the lower positioning ball 11 to move in the annular semicircular groove at the tail end of the thinner cylindrical section of the supporting rod 7, and after kinetic energy is completely absorbed by the spring 6, the self-locking spring 10 extrudes the positioning ball 11 in the semicircular groove of the supporting rod 7, the supporting rod 7 is fixed, the spring 6 is prevented from rebounding, and therefore buffering and self-locking of the bracket 2 are completed.
The method for installing the buffer device capable of blocking the tail gas recovery bracket in the decompression water-entering condensation ratio experiment comprises the following steps:
(1) The eight spring caps 8 are sequentially installed from bottom to top, and firstly pass through thicker cylindrical sections of the four support rods 7 respectively, and then the eight support rods 7 are connected with the top plate 9; secondly, respectively penetrating eight springs 6 through the thinner cylindrical sections of the four support rods 7, then installing the eight support rods 7 into the hole grooves 23 of the installation cylinder 5 to form the middle upper part of the buffer device, connecting the self-locking springs 10 with the positioning balls 11, then installing the self-locking springs into the positioning grooves of the installation cylinder 5 together, and tightly covering the springs by using the bolt connection of the positioning plates 16 to complete the installation of the self-locking assembly;
(2) Finally, the mounting cylinder 5 is connected to the opening of the transmitting cylinder through bolts, and a decompression water inlet test is carried out.
According to the invention, the bracket design is adopted to avoid the problem of high dangerous coefficient in working conditions such as electromagnetic ejection decompression environment (in order to meet the cavitation number of a shrinkage test), high humidity environment, capacitance, high-voltage circuit and the like, meanwhile, the kinetic energy of the steel bracket 2 is reduced through the compression of the spring 6, so that the bracket 2 and the capturer can be reused in the transmitting process, the speed regulation cost caused by different brackets is reduced, the risk that broken fragments are generated after the nylon bracket is used for transmitting to influence test data is avoided, the long round holes are formed in the wall of the mounting cylinder 5, the airflow generated in the acceleration process can be led out, the authenticity and reliability of the test data are ensured, the test repeatability is improved, the cost is reduced, and the basis is provided for the research and analysis of the follow-up decompression water shrinkage test.
The embodiments of the invention disclosed above are intended only to help illustrate the invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention.
Claims (10)
1. The utility model provides a retrieve buffer of bracket in decompression income water contract ratio experiment which characterized in that: comprises a mounting area, a buffer area and a self-locking area,
the mounting area comprises a transmitting cylinder (1), a bracket (2), a bracket connecting rod (3) and an air chamber (4), wherein the air chamber (4) is mounted at the bottom of the transmitting cylinder (1), and the air chamber (4) is connected with the bracket (2) through the bracket connecting rod (3);
the buffer area comprises a mounting cylinder (5), springs (6), supporting rods (7), spring caps (8) and a top plate (9), a plurality of hole grooves (23) are formed in one end of the mounting cylinder (5), through holes (20) are formed in the bottom of each hole groove (23), the springs (6) are mounted in each hole groove (23), positioning grooves (19), positioning columns (18) and positioning slide ways (21) are formed in the other end of each hole groove (23), rope penetrating holes (22) are formed in the walls of the positioning slide ways (21) and used for penetrating through positioning ropes (12), and long round holes are formed in the peripheral outer walls of the mounting cylinder (5) and used for guiding air flow; the middle of the supporting rod (7) is provided with a shaft shoulder, one side of the shaft shoulder is a thin cylindrical section, the other side of the shaft shoulder is a thick cylindrical section, the thin cylindrical section penetrates through the spring (6) and then stretches out through a through hole (20) at the bottom of a hole groove (23) of the mounting cylinder (5), the thick cylindrical section penetrates through a spring cover cap (8), the top end of the supporting rod (7) is connected with a top plate (9) of the mounting cylinder (5), and the transmitting cylinder (1) is connected with the mounting cylinder (5);
the self-locking area comprises a self-locking spring (10), a positioning ball (11), a positioning rope (12), a positioning guide wheel (13), a positioning gear (14), an adjusting gear (15) and a positioning plate (16), wherein the self-locking spring (10) is connected with the positioning ball (11), the positioning ball (11) is connected with the positioning rope (12), the self-locking spring (10) and the positioning ball (11) are installed in a positioning groove (19), the other end of the positioning rope (12) is connected onto the positioning gear (14) through a mounting cylinder (5) by bypassing the positioning guide wheel (13), the positioning guide wheel (13) is installed on one positioning column (18) at the bottom of the mounting cylinder (5), gear teeth of the positioning gear (14) are installed on the other positioning column (18) at the bottom of the mounting cylinder (5), the adjusting gear (15) is meshed with the positioning gear (14), a plurality of through holes are uniformly formed in one side of the positioning plate (16), the through holes are aligned with the through holes (20) of the mounting cylinder (5), the positioning holes are aligned with the mounting cylinder (18) respectively, and then aligned with the positioning plate (16) of the mounting cylinder (5).
2. The buffer device for recovering brackets in a decompression water-in-scaling experiment according to claim 1, wherein: 8 hole grooves (23) are uniformly formed in one end of the mounting cylinder (5).
3. The buffer device for recovering brackets in a decompression water-in-scaling experiment according to claim 1, wherein: the two positioning columns (18), one diameter is 2mm, one diameter is 5mm, the positioning guide wheel (13) is installed on the diameter 2mm positioning column (18) at the bottom of the installation cylinder (5), and the gear teeth of the positioning gear (14) are installed on the diameter 5mm positioning column (18) at the bottom of the installation cylinder (5).
4. The buffer device for recovering brackets in a decompression water-in-scaling experiment according to claim 1, wherein: the bracket (2) is made of steel materials.
5. The buffer device for recovering brackets in a decompression water-in-scaling experiment according to claim 1, wherein: the long through holes of the mounting cylinder (5) are uniform in size and shape, uniform in position and uniformly distributed, so that the flow rate and the flow rate of gas exhausted by each long through hole are the same, and the effect of uniform exhaust is achieved.
6. The buffer device for recovering brackets in a decompression water-in-scaling experiment according to claim 1, wherein: the adjusting gear (15) is uniformly provided with 8 protruding cylindrical rods on the ring, the length of the cylindrical rods exceeds the maximum diameter of the mounting cylinder (5), so that when the rotating adjusting gear (15) is released, the supporting rod (7) rebounds to prevent injury of a person, after the self-locking of the emission is finished, the bracket (2) is returned to the initial position, and the buffering device is restored to the initial state by utilizing the cylindrical rods to rotate the adjusting gear (15).
7. The buffer device for recovering brackets in a decompression water-in-scaling experiment according to claim 1, wherein: the end of the thin cylindrical section of the supporting rod (7) penetrating through the spring (6) is provided with an annular semicircular groove.
8. The buffer device for recovering brackets in a decompression water-in-scaling experiment according to claim 1, wherein: the wire diameter multiplied by the length of the spring (6) is 8mm multiplied by 32mm multiplied by 600mm, the screw pitch is 10mm, and the spring is made of piano steel.
9. The buffer device for recovering brackets in a decompression water-in-scaling experiment according to claim 7, wherein: the other end of the mounting cylinder (5) is also provided with a stop block (17), and the stop block (17) is used for limiting the rotation range of the adjusting gear (15) and preventing excessive rotation.
10. A buffering method using the buffering device for recovering brackets in the decompression in-water condensation experiment according to claim 9, characterized in that: the method specifically comprises the following steps:
step 1, in an initial state, a spring (6) is in a diastole state, and a shaft shoulder of a supporting rod (7) is propped against a spring cap (8);
step 2, the top plate (9) is impacted to drive the supporting rod (7), and the shoulder compression spring (6) of the supporting rod (7) absorbs kinetic energy;
step 3, the supporting rod (7) is impacted to move, the positioning ball (11) moves in an annular semicircular groove at the tail end of the thin cylindrical section of the supporting rod (7), after kinetic energy is completely absorbed by the spring (6), the self-locking spring (10) extrudes the positioning ball (11) in the annular semicircular groove of the supporting rod (7), the supporting rod (7) is fixed, the spring (6) is prevented from rebounding to cause the bracket (2) to retroreflect, and the transmitting device is damaged;
step 4, returning the bracket (2) to the initial position, rotating the adjusting gear (15), driving the positioning gear (14) to tighten the positioning rope (12), pulling the positioning ball (11) out of the annular semicircular groove of the supporting rod (7), rebounding the supporting rod (7) under the action of the spring (6), rebounding the positioning ball (11) under the action of the self-locking spring (10), pulling the positioning rope (12), rotating the positioning gear (14), enabling the adjusting gear (15) to rotate, circumferentially arranging a protruding column on the adjusting gear (15), enabling the protruding column on the adjusting gear (15) to touch the stopping block (17) of the mounting cylinder (5) to stop rotating, and recovering the initial state by the buffer device.
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| CN117489746A (en) | 2024-02-02 |
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