CN110398177B - Device for simulating projectile motion in projectile transporting process and simulation method thereof - Google Patents
Device for simulating projectile motion in projectile transporting process and simulation method thereof Download PDFInfo
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- CN110398177B CN110398177B CN201910684046.2A CN201910684046A CN110398177B CN 110398177 B CN110398177 B CN 110398177B CN 201910684046 A CN201910684046 A CN 201910684046A CN 110398177 B CN110398177 B CN 110398177B
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- end cover
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A33/00—Adaptations for training; Gun simulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
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- General Engineering & Computer Science (AREA)
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- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
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- Fluid-Damping Devices (AREA)
Abstract
The invention relates to a device for simulating projectile motion in a projectile feeding process and a simulation method thereof. The basic assembly comprises a shell, a cylinder barrel arranged in the shell, and an upper end cover and a lower end cover which are fixedly arranged at two ends of the cylinder barrel respectively; the piston assembly comprises a piston rod which is arranged in the cylinder barrel in a reciprocating piston motion mode, penetrates through the upper end cover and the lower end cover and is in clearance fit with the upper end cover and the lower end cover; energy supply subassembly is including seting up respectively the A chamber oil inlet and the B chamber oil inlet of cylinder both ends homonymy, respectively with the articulated formula coupling that A chamber oil inlet and B chamber oil inlet are connected, through the oil pipe subassembly that articulated formula coupling is connected, and the cover is established piston rod lower extreme, just the pad is established first spring on the lower end cover terminal surface. The device can continuously simulate the movement of the projectile in the projectile transporting process so as to reduce the filling time and improve the test efficiency.
Description
Technical Field
The invention relates to a hydraulic buffer device, in particular to a device for simulating projectile motion in a projectile feeding process and a simulation method thereof.
Background
The key for improving the firing speed of the medium and large caliber artillery is to realize the automatic loading of the projectile. In order to improve the automatic filling reliability, a large number of filling tests are required to be carried out, and relevant data are acquired.
In the artillery ammunition feeding reliability test, after each ammunition feeding action is finished, the ammunition needs to be manually pounded out from the muzzle direction to the ammunition feeding initial position, which consumes manpower and wastes time.
Disclosure of Invention
The purpose of the invention is as follows: the device for simulating the movement of the shot in the process of bullet delivery and the simulation method thereof are provided, the device for simulating the movement of the shot in the process of bullet delivery can be continuously simulated, so that the filling time is reduced, the test efficiency is improved, and the problems in the prior art are solved.
The technical scheme is as follows: a device for simulating the movement of a projectile in the process of projectile delivery comprises a basic assembly, a piston assembly and an energy supply assembly.
The basic assembly comprises a shell, a cylinder barrel arranged in the shell, and an upper end cover and a lower end cover which are fixedly arranged at two ends of the cylinder barrel respectively;
the piston assembly comprises a piston rod which is arranged in the cylinder barrel in a reciprocating piston motion manner, penetrates through the upper end cover and the lower end cover and is in clearance fit with the upper end cover and the lower end cover;
energy supply subassembly, including seting up respectively the A chamber oil inlet and the B chamber oil inlet of cylinder both ends homonymy, respectively with the articulated formula coupling that A chamber oil inlet and B chamber oil inlet are connected, through the oil pipe subassembly that articulated formula coupling is connected, and the cover is established piston rod lower extreme, and the pad is established first spring on the lower end cover terminal surface.
In a further embodiment, the outer wall of the piston rod body is provided with a circumferential protrusion, three annular grooves are formed in the circumferential protrusion at intervals in the circumferential direction, and the first annular groove, the first seal ring groove and the second annular groove are sequentially formed from top to bottom; the first piston guide ring is arranged in the first guide ring groove, the first piston seal ring is arranged in the first seal ring groove, and the second piston guide ring is arranged in the second guide ring groove. The guide ring for the first piston and the guide ring for the second piston play a role in guiding and supporting the movement of the piston rod body in the cylinder barrel, and simultaneously prevent the piston rod from directly contacting and rubbing the cylinder body in the movement process, thereby protecting the cylinder body and the piston rod. The type of the first piston sealing ring is a YX-shaped sealing ring for a hole, and the YX-shaped sealing ring is used for sealing a piston in the reciprocating hydraulic oil cylinder.
In a further embodiment, the upper end cover comprises an upper end cover body, a dustproof ring for the upper end cover, a first sealing ring for the upper end cover, a second sealing ring for the upper end cover, a guide belt for the upper end cover and a third sealing ring for the upper end cover, wherein the dustproof ring, the first sealing ring, the second sealing ring and the guide belt are embedded in the inner wall of the upper end cover body from top to bottom in sequence, and the third sealing ring is embedded in the lower portion of the outer wall of the upper end cover. The lower end cover comprises a lower end cover body, a first sealing ring for the lower end cover embedded in the upper portion of the outer wall of the lower end cover body, a guide belt for the lower end cover, a second sealing ring for the lower end cover, a third sealing ring for the lower end cover and a dust ring for the lower end cover, wherein the guide belt, the second sealing ring, the third sealing ring and the dust ring are sequentially embedded in the lower end cover from top to bottom. The dust ring for the upper end cover and the dust ring for the lower end cover are used for preventing dust for the end cover, so that external dust is prevented from entering the end cover, sliding fit between the piston rod and the end cover is influenced, and the inner wall of the end cover and the outer wall of the piston rod are scratched. The first sealing ring for the upper end cover, the second sealing ring for the upper end cover, the first sealing ring for the lower end cover and the second sealing ring for the lower end cover are arranged on the inner wall of the end cover, are in direct contact with the piston rod and are used for sealing a gap between the inner wall of the end cover and the piston rod; the third sealing ring for the upper end cover and the third sealing ring for the lower end cover are arranged on the outer wall of the end cover, are in direct contact with the inner wall of the cylinder barrel and are used for sealing the gap between the outer wall of the end cover and the cylinder barrel. The guide belt for the upper end cover and the guide belt for the lower end cover are used for guiding the piston to do linear motion, and the phenomena that the piston leaks inwards and the service life of a sealing element is shortened due to deviation caused by uneven stress are avoided.
In a further embodiment, a cavity formed by the part of the circumferential bulge of the piston rod facing upwards to the bottom surface of the upper end cover and the cylinder barrel is an A cavity, a cavity formed by the part of the circumferential bulge of the piston rod facing downwards to the top surface of the lower end cover and the cylinder barrel is a B cavity, a cover plate is welded at one end of the cylinder barrel, and the cover plate is fastened on the shell through bolts. The cavity A and the cavity B are not communicated with each other, hydraulic oil is supplied to one cavity, at the moment, because one cavity is filled with hydraulic oil, the other cavity is a cavity, pressure difference exists between the two cavities, the piston rod can be pushed to move towards the other cavity, the volume of the cavity supplied with oil is increased, and the other cavity is continuously compressed.
In a further embodiment, the tubing assembly comprises a pipe mounted on the articulated coupling, a one-way choke mounted at the other end of the pipe, and a straight-through coupling mounted at both ends of the one-way choke and connected to the pipe; and the pipeline and the hinged pipe joint and the pipeline and the one-way throttle valve are locked by anti-loosening nuts. The one-way throttle valve is formed by combining a one-way valve and a throttle valve in parallel, and when hydraulic oil flows along the one-way valve, the throttle valve does not work; when the hydraulic oil flows back to the one-way valve, the throttle valve acts at the moment, and the throttling cross section is changed to control the flow of the hydraulic oil, so that the throttling function as required is achieved.
In a further embodiment, the one-way throttle valve comprises a throttle valve body, a flow channel transversely arranged in the throttle valve body, a top cover arranged at the upper part of the throttle valve body, a flow control hand wheel with threads arranged on the throttle valve body, a guide sleeve arranged in the throttle valve body, a push rod fixed at the tail end of the flow control hand wheel and guided and limited by the guide sleeve, a throttle valve core fixed at one end of the push rod, a feedback spring with one end abutting against the valve core and arranged in the throttle valve body in a cushioning manner, a throttle orifice arranged between the throttle valve core and the flow channel, a one-way valve body locked with the throttle valve body by threads, a one-way valve core arranged in the one-way valve body, a damping spring arranged in the one-way valve body and abutting against the one-way valve core, and an axial hole arranged in the one, and the radial hole is vertically arranged on the axial hole, and an oil outlet of the one-way valve body is communicated with the flow passage of the throttle valve body.
A simulation method of a device for simulating projectile motion in a projectile feeding process is characterized by comprising the following steps:
and 6, repeating the steps 1 to 5 to realize a continuous simulation bullet feeding test.
In a further embodiment, when the upper end of the piston rod impacts the muzzle stop in step 2, the piston rod of the oil cylinder and the muzzle stop are kept relatively static, and the device body continues to move towards the muzzle stop at a preset speed by means of inertia.
In a further embodiment, part of the kinetic energy in step 3 is stored in the first spring in the form of elastic energy, another part of the kinetic energy is converted into internal energy due to the throttling action of the one-way throttle valve, the kinetic energy of the device is gradually reduced, and the speed is gradually reduced.
Has the advantages that: the invention relates to a device for simulating projectile motion in a projectile transporting process and a simulation method thereof. Specifically, the use of an energy accumulator is reduced by adopting symmetrical hydraulic cylinders; the invention has compact structure, gravity center distribution, total mass matching with the actual projectile, automatic rebounding to the initial position of the projectile, saving filling time and effectively simulating the continuous projectile conveying process.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a schematic structural view of the piston rod of the present invention.
Fig. 3 is a sectional view of the upper cap in the present invention.
Fig. 4 is a cross-sectional view of the lower end cap of the present invention.
FIG. 5 is a schematic view of the structure of the one-way throttle valve of the present invention.
The figures are numbered: an upper end cap 1, a dust seal 101 for an upper end cap, a first seal ring 102 for an upper end cap, a second seal ring 103 for an upper end cap, a third seal ring 104 for an upper end cap, a guide band 105 for an upper end cap, an upper end cap body 106, a lower end cap 2, a first seal ring 201 for a lower end cap, a guide band 202 for a lower end cap, a second seal ring 203 for a lower end cap, a third seal ring 204 for a lower end cap, a dust seal 205 for a lower end cap, a lower end cap body 206, a cylinder 3, an a-chamber oil inlet 301, a B-chamber oil inlet 302, a piston rod 4, a guide ring 401 for a first piston, a seal ring 402 for a first piston, a guide ring for a second piston, a guide ring groove 404, a first seal ring groove 405, a first guide ring groove 406, a circumferential protrusion 408, a piston rod body 403, a one-way throttle valve 5, a top cap 501, a handwheel 502, a throttle valve core 503, a throttle guide 504, a, The hydraulic control valve comprises a flow passage 508, a feedback spring 509, a balance hole 510, a one-way valve body 511, an oil outlet 512, an oil inlet 513, a damping spring 514, an axial hole 515, a radial hole 516, a one-way valve core 517, a first spring 6, a shell 7, a bolt 8, an oil pipe 9, a hinged pipe joint 10, an anti-loosening nut 12, a straight-through pipe joint 13 and a cover plate 16.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The invention discloses a device for simulating projectile motion in a projectile transporting process and a simulation method thereof. A device for simulating shot movement in a bullet delivering process comprises an upper end cover 1, a dustproof ring 101 for the upper end cover, a first sealing ring 102 for the upper end cover, a second sealing ring 103 for the upper end cover, a third sealing ring 104 for the upper end cover, a guide belt 105 for the upper end cover, an upper end cover body 106, a lower end cover 2, a first sealing ring 201 for the lower end cover, a guide belt 202 for the lower end cover, a second sealing ring 203 for the lower end cover, a third sealing ring 204 for the lower end cover, a dustproof ring 205 for the lower end cover, a lower end cover body 206, a cylinder barrel 3, a cavity A oil inlet 301, a cavity B oil inlet 302, a piston rod 4, a guide ring 401 for a first piston, a sealing ring 402 for the first piston, a guide ring 403 for the second piston, a second guide ring groove 404, a first sealing ring groove 405, a first guide ring groove, a circumferential bulge 408, a piston rod body 409, a one-way throttle valve 5, a top cover 501, a flow control hand, The hydraulic oil-gas pipeline comprises a guide sleeve 504, a throttling opening 505, a throttling valve body 506, a push rod 507, a flow passage 508, a feedback spring 509, a balance hole passage 510, a one-way valve body 511, an oil outlet 512, an oil inlet 513, a damping spring 514, an axial hole 515, a radial hole 516, a one-way valve core 517, a first spring 6, a shell 7, a bolt 8, an oil pipe 9, a hinged pipe joint 10, an anti-loosening nut 12, a straight-through pipe joint 13 and a cover plate 16.
As shown in fig. 1, an upper end cover 1 is arranged at one end of the piston rod 4, a through hole is formed in the center of the upper end cover 1, and the piston rod 4 is inserted into the through hole of the upper end cover 1; the other end of the piston rod 4 is provided with a lower end cover 2, the center of the lower end cover 2 is provided with a through hole, and the piston rod 4 is inserted into the through hole of the lower end cover 2; the cylinder barrel 3 is provided with an A cavity oil inlet 301 and a B cavity oil inlet 302; an articulated pipe joint 10 is arranged on an oil inlet 301 of the cavity A; an articulated pipe joint 10 is arranged on an oil inlet 302 of the cavity B; the upper end of the one-way throttle valve 5 is provided with a straight-through pipe joint 13 at one end, and the lower end of the one-way throttle valve 5 is provided with a straight-through pipe joint 13 at one end; the pipe joint is connected with the pipe joint; the pipe joint is connected with the pipe joint through an oil pipe 9 and locked by a pair of anti-loosening nuts 12; the first spring 6 is sleeved at the lower end of the piston rod 4; the cover plate 16 and the cylinder barrel 3 are fixedly connected together by welding; apron 16 and casing 7 link firmly together through bolt 8, oil pipe 9 subassembly includes pipeline, one-way choke valve 5, through coupling 13, the pipe mounting is in on the articulated formula coupling 10, one-way choke valve 5 is installed the other end of pipeline, through coupling 13 install the both ends of one-way choke valve 5 and with the pipe connection, lock through locking nut 12 that takes off between pipeline and the articulated formula coupling 10 and between pipeline and the one-way choke valve 5. The rated flow of the one-way throttle valve 5 is 30L/min, the highest service pressure is 25MPa, a tubular connection mode is adopted, and the one-way throttle valve 5 meets the pressure and flow conditions required by the actual work of the invention through calculation.
Specifically, as shown in fig. 5, the one-way throttle valve 5 includes a top cover 501, a flow control hand wheel 502, a throttle valve core 503, a guide sleeve 504, a throttle opening 505, a throttle valve body 506, a push rod 507, a flow passage 508, a feedback spring 509, a balance hole 510, a one-way valve body 511, an oil outlet 512, an oil inlet 513, a damping spring 514, an axial hole 515, a radial hole 516, and a one-way valve core 517.
The flow control hand wheel 502 is arranged on the upper portion of the throttle body 506 in a threaded manner, the flow control hand wheel 502 can be lifted along the threads through external force rotation, the push rod 507 is installed at one end of the flow control hand wheel 502, the push rod 507 penetrates through the guide sleeve 504 and is guided by the guide sleeve 504, the top cover 501 is installed at the top end of the throttle body 506, the push rod 507 can be driven to be pushed out and retracted when the flow control hand wheel 502 rotates, the flow channel 508 is divided into an outlet and an inlet, and the part of the flow channel 508, which is in contact with the push rod 507, is a throttle opening. One end of the throttle valve inlet is communicated with one end of the check valve oil outlet 512, one end of the throttle valve outlet is communicated with the pipeline, the push rod 507 can block part of the cross section of the flow channel 508 when extending out, so that the flow control effect is achieved, the hydraulic oil flows in from the oil inlet 513 of the check valve body 511 and acts on the cone valve, after the acting force of the damping spring 514 is overcome, the valve core is jacked open, and flows out from the oil outlet 512 at the right end of the valve body through the radial hole 516 and the axial hole 515 in the valve core. When hydraulic oil flows in from the oil port at the right end of the valve body, the valve core is pressed on the valve seat together by hydraulic pressure and spring force, so that the oil cannot pass through. In summary, the one-way throttle valve 5 is composed of a one-way valve and a throttle valve in parallel, the one-way valve can prevent the medium from flowing backwards, control the oil to flow in one direction, and stop when the oil flows backwards, and the one-way valve can be used for supplying a pipeline for an auxiliary system, the pressure of which can be increased to exceed the system pressure. When hydraulic oil flows in the forward one-way valve, the throttle valve does not work; when the hydraulic oil flows back to the one-way valve, the throttle valve acts at the moment, and the throttling cross section is changed to control the flow of the hydraulic oil, so that the throttling function as required is achieved.
With reference to fig. 1 and fig. 2, the piston rod 4 includes a first guide ring groove 406, a first seal ring groove 405, a second guide ring groove 404, and a piston rod body 409, a circumferential protrusion 408 is disposed on an outer wall of the piston rod body 409, three annular grooves are circumferentially spaced on the circumferential protrusion 408, and the first guide ring groove 406, the first seal ring groove 405, and the second guide ring groove 404 are sequentially arranged from top to bottom; a first piston guide ring 401 is installed in the first guide ring groove 406, a first piston seal ring 402 is installed in the first seal ring groove 405, and a second piston guide ring 403 is installed in the second guide ring groove 404. The type of the first piston sealing ring 402 is a hole YX type sealing ring, which can stably work at a temperature of-40 to +80 ℃ and a working pressure of less than or equal to 32 Mpa.
Referring to fig. 1, 3, and 4, the upper end cap 1 includes an upper end cap body 106, an upper end cap dust seal 101, an upper end cap first seal ring 102, an upper end cap second seal ring 103, an upper end cap guide band 105, and an upper end cap third seal ring 104, and the lower end cap 2 includes a lower end cap body 206, a lower end cap first seal ring 201, a lower end cap guide band 202, a lower end cap second seal ring 203, a lower end cap third seal ring 204, and a lower end cap dust seal ring 205. The first sealing ring 102 for the upper end cover, the second sealing ring 103 for the upper end cover, the first sealing ring 201 for the lower end cover and the second sealing ring 203 for the lower end cover are arranged on the inner wall of the end cover, are in direct contact with the piston rod 4 and are used for sealing the gap between the inner wall of the end cover and the piston rod 4; the third sealing ring 104 for the upper end cover and the third sealing ring 204 for the lower end cover are arranged on the outer wall of the end cover, are in direct contact with the inner wall of the cylinder 3, and are used for sealing the gap between the outer wall of the end cover and the cylinder 3. The upper end cap guide belt 105 and the lower end cap guide belt 202 guide the piston to move linearly.
The following explains a specific working process of the present invention, that is, a method of simulating a device for simulating the movement of a projectile in a projectile feeding process:
before use, the cavities A and B are filled with hydraulic oil, and the one-way throttle valve 5 is adjusted to a proper position.
When the device works, the projectile motion device simulates the projectile process to move along with the towing disc, when the towing disc performs deceleration motion to a preset position, the projectile motion device simulates the projectile process to separate from the towing disc, the towing disc returns to the initial position of projectile delivery, the projectile motion device simulates the projectile process to continuously move forwards by means of inertia and impact a muzzle stop block at a certain speed, the inertial projectile process is simulated, when the upper end of a piston rod 4 impacts the muzzle stop block, the piston rod 4 of the oil cylinder and the muzzle stop block keep relatively static, the projectile motion device body simulates the projectile process to continuously move towards the muzzle stop block at a certain speed by means of inertia, at the moment, the first spring 6 compresses and stores energy, hydraulic oil in a cavity B flows to the one-way throttle valve 5 through an oil pipe 9 and flows to a cavity A through the one-way throttle valve 5, part of kinetic energy of the device is stored in the first spring 6 in an elastic energy form, and the other part of kinetic energy is converted into internal energy due to the, the kinetic energy of the device is gradually reduced, and the speed is gradually reduced; when the movement is finished, the first spring 6 is gradually extended to release the stored elastic potential energy, the piston rod 4 is extended out at the moment, the hydraulic oil in the cavity A flows to the cavity B through the one-way throttle valve 5 and the oil pipe 9, the projectile movement device returns to the initial position of projectile delivery in the simulated projectile delivery process, and the process is repeated, so that the continuous simulated projectile delivery test can be realized.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A device for simulating projectile motion in a projectile feeding process comprises a basic assembly and a piston assembly; the basic assembly comprises a shell, a cylinder barrel arranged in the shell, and an upper end cover and a lower end cover which are fixedly arranged at two ends of the cylinder barrel respectively; the piston assembly comprises a piston rod which is arranged in the cylinder barrel in a reciprocating piston motion mode, penetrates through the upper end cover and the lower end cover and is in clearance fit with the upper end cover and the lower end cover;
its characterized in that still includes the energy supply subassembly, the energy supply subassembly is including seting up respectively the A chamber oil inlet and the B chamber oil inlet of cylinder both ends homonymy, respectively with the articulated formula coupling that A chamber oil inlet and B chamber oil inlet are connected, through the oil pipe subassembly that articulated formula coupling is connected, and the cover is established piston rod lower extreme, and pad are established first spring on the lower extreme terminal surface.
2. The apparatus of claim 1, wherein the apparatus further comprises: the outer wall of the piston rod body is provided with a circumferential protrusion, three annular grooves are formed in the circumferential direction of the circumferential protrusion at intervals, and a first guide annular groove, a first sealing ring groove and a second guide annular groove are sequentially formed from top to bottom; the first piston guide ring is arranged in the first guide ring groove, the first piston seal ring is arranged in the first seal ring groove, and the second piston guide ring is arranged in the second guide ring groove.
3. The apparatus of claim 1, wherein the apparatus further comprises: the upper end cover comprises an upper end cover body, wherein the upper end cover is sequentially embedded with a dustproof ring for the upper end cover, a first sealing ring for the upper end cover, a second sealing ring for the upper end cover, a guide belt for the upper end cover and a third sealing ring for the upper end cover, wherein the dustproof ring, the first sealing ring, the second sealing ring and the guide belt are embedded in the lower portion of the outer wall of the upper end cover body from top to bottom.
4. The apparatus of claim 1, wherein the apparatus further comprises: the lower end cover comprises a lower end cover body, a first sealing ring for the lower end cover embedded in the upper portion of the outer wall of the lower end cover body, a guide belt for the lower end cover, a second sealing ring for the lower end cover, a third sealing ring for the lower end cover and a dust ring for the lower end cover, wherein the guide belt, the second sealing ring, the third sealing ring and the dust ring are sequentially embedded in the lower end cover from top to bottom.
5. The apparatus of claim 1, wherein the apparatus further comprises: a cavity formed by the part of the circumferential bulge of the piston rod facing upwards to the bottom surface of the upper end cover and the cylinder barrel is an A cavity, and a cavity formed by the part of the circumferential bulge of the piston rod facing downwards to the top surface of the lower end cover and the cylinder barrel is a B cavity; a cover plate is welded at one end of the cylinder barrel and fastened on the shell through bolts.
6. The apparatus of claim 5, wherein the apparatus further comprises: the oil pipe assembly comprises a pipeline arranged on the hinged pipe joint, a one-way throttle valve arranged at the other end of the pipeline, and a straight-through pipe joint arranged at two ends of the one-way throttle valve and connected with the pipeline; and the pipeline and the hinged pipe joint and the pipeline and the one-way throttle valve are locked by anti-loosening nuts.
7. The apparatus of claim 6, wherein the apparatus further comprises: the one-way throttle valve comprises a throttle valve body, a flow channel transversely arranged in the throttle valve body, a top cover arranged at the upper part of the throttle valve body, a flow control hand wheel arranged on the throttle valve body in a threaded manner, a guide sleeve arranged in the throttle valve body, a push rod fixed at the tail end of the flow control hand wheel and guided and limited by the guide sleeve, a throttle valve core fixed at one end of the push rod, a feedback spring arranged in the throttle valve body in a cushioning manner that one end of the feedback spring is abutted against the valve core, a throttle orifice arranged between the throttle valve core and the flow channel, a one-way valve body locked with the throttle valve body in a threaded manner, a one-way valve core arranged in the one-way valve body, a damping spring arranged in the one-way valve body and abutted against the one-way valve core, an axial hole arranged in the one-way valve, and an oil outlet of the one-way valve body is communicated with a flow passage of the throttle valve body.
8. A simulation method of a device for simulating projectile motion in a projectile feeding process is characterized by comprising the following steps:
step 1, filling hydraulic oil into the cavity A and the cavity B, and adjusting a one-way throttle valve to a preset position;
step 2, placing the device body on one side of the drag ammunition disc, separating the device body from the drag ammunition disc after the drag ammunition disc performs deceleration movement to a preset position, returning the drag ammunition disc to an initial position for ammunition feeding, continuously moving the device body forwards by means of inertia, impacting a muzzle stop block at a preset speed, and simulating an inertia ammunition feeding process;
step 3, the first spring is compressed to store energy, and the hydraulic oil in the cavity B flows to the one-way throttle valve through the oil pipe and flows to the cavity A through the one-way throttle valve;
step 4, when the movement is finished, the first spring gradually extends to release the stored elastic potential energy;
step 5, extending the piston rod, enabling hydraulic oil in the cavity A to flow to the cavity B through the one-way throttle valve and the oil pipe, and simulating the projectile motion device to return to the initial position of projectile delivery in the projectile delivery process;
and 6, repeating the steps 1 to 5 to realize a continuous simulation bullet feeding test.
9. The method of claim 8, wherein the simulation comprises: in the step 2, when the upper end of the piston rod impacts the muzzle stop block, the piston rod of the oil cylinder and the muzzle stop block keep relatively static, and the device body continues to move towards the muzzle stop block at a preset speed by means of inertia.
10. The method of claim 8, wherein the simulation comprises: and 3, storing part of kinetic energy in the form of elastic time energy in the first spring, converting the other part of kinetic energy into internal energy under the throttling action of the one-way throttle valve, and gradually reducing the kinetic energy and the speed of the device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910684046.2A CN110398177B (en) | 2019-07-26 | 2019-07-26 | Device for simulating projectile motion in projectile transporting process and simulation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910684046.2A CN110398177B (en) | 2019-07-26 | 2019-07-26 | Device for simulating projectile motion in projectile transporting process and simulation method thereof |
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| CN110398177A CN110398177A (en) | 2019-11-01 |
| CN110398177B true CN110398177B (en) | 2020-06-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6202636B1 (en) * | 1999-01-06 | 2001-03-20 | The Lobit Partnership | Pitching machine |
| JP2002323009A (en) * | 2001-04-23 | 2002-11-08 | Shigeo Hirose | Cylinder apparatus and mine sensor |
| CN201297302Y (en) * | 2008-10-22 | 2009-08-26 | 中国船舶重工集团公司第七一三研究所 | Oil cylinder used for cushioning |
| CN204664042U (en) * | 2015-05-08 | 2015-09-23 | 张泽华 | A kind of hydraulic cushion sealing cylinder |
| RU164801U1 (en) * | 2016-04-05 | 2016-09-20 | Михаил Александрович Шалаев | PNEUMATIC CYLINDER |
| CN106286464B (en) * | 2016-09-02 | 2017-12-05 | 武汉市天毅达测控科技有限公司 | A kind of end mechanical self-locking hydraulic cylinder of band buffering |
| CN107941080B (en) * | 2017-11-08 | 2019-10-15 | 航宇救生装备有限公司 | A kind of parachute Gas Gun expeimental cartridge automatic Loading method |
| CN109059652B (en) * | 2018-10-16 | 2020-09-22 | 太原理工大学 | Gun hybrid drive system |
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2019
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